added a quite unsorted first version of a floppy boot loader

author: Andreas Baumann <mail@andreasbaumann.cc> 2022-09-02 09:18:52 +0200
committer: Andreas Baumann <mail@andreasbaumann.cc> 2022-09-02 09:18:52 +0200
commit: 52be99d8c0862ff87db9a4f9ccec1ac4b5f7caed (patch)
tree: 1a1a1c98090afd8459cc8f045f9de2d4a7cba5ab /floppy/doc/INTERRUP.C
parent: 15adaba9eaa6a98c8b55bc5c5f73c3a9e0e55e7a (diff)
1 files changed, 9446 insertions, 0 deletions
diff --git a/floppy/doc/INTERRUP.C b/floppy/doc/INTERRUP.C
new file mode 100644
index 0000000..600e0fc
--- /dev/null
+++ b/floppy/doc/INTERRUP.C
@@ -0,0 +1,9446 @@
+Interrupt List, part 3 of 18
+Copyright (c) 1989-1999,2000 Ralf Brown
+--------O-1510-------------------------------
+INT 15 - VMiX - "sys_virtual" - EXECUTE CONFORMING FUNCTION IN PROTECTED MODE
+	AH = 10h
+	STACK:	DWORD	pointer to function
+	      N WORDs	function args
+Return: AX = function's return value??? (not specified in documentation)
+Note:	while the function is executing, the following global descriptors are
+	  available:
+		20h stack segment
+		38h code segment of function
+		40h data alias for function's code segment
+	  additional GDT descriptors can be allocated using AH=02h with
+	  function "assign gdt"
+SeeAlso: AH=02h"VMiX",AH=51h"VMiX"
+--------T-1510-------------------------------
+INT 15 - MultiDOS Plus - TEST RESOURCE SEMAPHORE
+	AH = 10h
+	AL = semaphore number (00h-3Fh)
+Return: AH = status
+	    00h semaphore not in use
+	    01h semaphore owned by another task
+	    02h invalid semaphore number
+	    03h semaphore owned by caller
+SeeAlso: AH=02h"MultiDOS",AH=0Dh"MultiDOS",AH=1Dh"MultiDOS"
+--------Q-151000-----------------------------
+INT 15 - TopView - "PAUSE" - GIVE UP CPU TIME
+	AX = 1000h
+Return: after other processes run
+Note:	under DESQview, if the process issuing this call has hooked INT 08h,
+	  the current time-slice is set to expire at the next clock tick rather
+	  than immediately
+SeeAlso: AH=00h"MultiDOS",AX=5305h,INT 21/AH=89h,INT 21/AH=EEh"DoubleDOS"
+SeeAlso: INT 2F/AX=1680h,INT 60/DI=0106h,INT 62/AH=01h,INT 6F/AH=2Ah"F_YIELD"
+SeeAlso: INT 7A/BX=000Ah,INT 7F/AH=02h"MultiLink",INT 7F/AH=E8h
+--------Q-151001-----------------------------
+INT 15 - TopView - "GETMEM" - ALLOCATE "SYSTEM" MEMORY
+	AX = 1001h
+	BX = number of bytes to allocate
+Return: ES:DI -> block of memory or 0000h:0000h (DV v2.26+)
+	AX = status (DV v2.42)
+	    0000h successful
+	    0001h failed
+Note:	use SETERROR (AX=DE15h) to avoid a user prompt if there is insufficient
+	  common memory.  Under DV v2.42, this call never generates a user
+	  prompt regardless of the SETERROR value; instead, it always returns
+	  AX=0001h and ES:DI=0000h:0000h if out of memory
+SeeAlso: AX=1002h,AX=102Eh,AX=DE0Ch,AX=DE15h
+--------Q-151002-----------------------------
+INT 15 - TopView - "PUTMEM" - DEALLOCATE "SYSTEM" MEMORY
+	AX = 1002h
+	ES:DI -> previously allocated block
+Return: block freed
+SeeAlso: AX=1001h,AX=DE0Dh
+--------Q-151003-----------------------------
+INT 15 - TopView - "PRINTC" - DISPLAY CHARACTER/ATTRIBUTE ON SCREEN
+	AX = 1003h
+	BH = attribute
+	BL = character
+	DX = segment of object handle for window
+Return: nothing
+Note:	BX=0000h does not display anything, it only positions the hardware
+	  cursor to the logical cursor's current position
+--------Q-1510-------------------------------
+INT 15 - TopView - UNIMPLEMENTED IN DV 2.x
+	AH = 10h
+	AL = 04h thru 12h
+Return: pops up "Programming error" window in DV 2.x
+--------Q-151013-----------------------------
+INT 15 - TopView - "GETBIT" - DEFINE A 2ND-LEVEL INTERRUPT HANDLER
+	AX = 1013h
+	ES:DI -> FAR service routine
+Return: BX = bit mask indicating which bit was allocated
+	    0000h if no more bits available
+SeeAlso: AX=1014h,AX=1015h
+Note:	only a few TopView/DESQview API calls are allowed during a hardware
+	  interrupt; if other calls need to be made, the interrupt handler
+	  must schedule a 2nd-level interrupt with "SETBIT" (AX=1015h)
+--------Q-151014-----------------------------
+INT 15 - TopView - "FREEBIT" - UNDEFINE A 2ND-LEVEL INTERRUPT HANDLER
+	AX = 1014h
+	BX = bit mask from INT 15/AX=1013h
+Return: nothing
+SeeAlso: AX=1013h,AX=1015h
+--------Q-151015-----------------------------
+INT 15 - TopView - "SETBIT" - SCHEDULE ONE OR MORE 2ND-LEVEL INTERRUPTS
+	AX = 1015h
+	BX = bit mask for interrupts to post
+Return: indicated routines will be called: (DV 2.0x) at next task switch
+					   (DV 2.2x) immediately on return from
+						     hardware interrupt
+Notes:	this is one of the few TopView calls which are allowed from a hardware
+	  interrupt handler
+	the handler will be called with ES containing the segment of the handle
+	  of the next task to be executed; on return, ES must be the segment of
+	  a task handle
+SeeAlso: AX=1013h,AX=1014h
+--------Q-151016-----------------------------
+INT 15 - TopView - "ISOBJ" - VERIFY OBJECT HANDLE
+	AX = 1016h
+	ES:DI = possible object handle
+Return: BX = status
+	    FFFFh if ES:DI is a valid object handle (see #00414)
+	    0000h if ES:DI is not
+Note:	under DESQview versions prior to 2.50, an object handle is always a
+	  pointer to the object; for versions 2.50 and up, only task handles
+	  are always pointers--other handles may consist of a unique object
+	  number and offset into DESQview's common memory (see #00423)
+SeeAlso: AX=DE14h,AX=DE2Bh,AX=DE2Ch
+
+(Table 00413)
+Values for DESQview object type:
+ 00h	window/task
+ 01h	mailbox
+ 02h	keyboard
+ 03h	timer
+ 04h	pointer
+ 05h	panel
+ 06h	objectq
+
+Format of DESQview object:
+Offset	Size	Description	(Table 00414)
+ 00h	WORD	offset in common memory of previous object of same type
+ 02h	WORD	offset in common memory of next object of same type
+ 04h	WORD	signature FEDCh (DV 2.42-)
+		signature FEDCh or object number (DV 2.50+)
+ 06h	WORD	object type (see #00413)
+ 08h	DWORD	object handle to return to caller
+ 0Ch	DWORD	canonicalized object address (segment = common memory)
+ 10h	WORD	offset in common memory of owning task
+		(0000h for unowned OBJECTQs)
+ 12h	WORD	mapping context
+		offset in common memory of mapping context record (see #00416)
+	remainder varies by object type and DESQview version
+---v2.42 keyboard object---
+ 14h	WORD	flag bits (see also AH=12h/BH=0Ah"OBJECT")
+		bit 15: keyboard opened
+ 16h  4 BYTEs	???
+ 1Ah	WORD	priority in OBJECTQ???
+ 1Ch	...
+ 25h	WORD	offset in common memory of ??? task
+ 27h  4 BYTEs	???
+---v2.42 objectq object---
+ 14h	WORD	flag bits (see also AH=12h/BH=0Ah"OBJECT")
+		bit 15: OBJECTQ opened
+ 16h  2 BYTEs	???
+ 18h	WORD	offset in common memory of ??? task
+ 1Ah  6 BYTEs	???
+---v2.42 mailbox object---
+ 14h	WORD	flag bits (see also AH=12h/BH=0Ah"OBJECT")
+		bit 15: mailbox opened
+ 1Ah	WORD	priority in OBJECTQ???
+ 1Ch  6 BYTEs	???
+ 22h	WORD	offset in common memory of mailbox name (counted string)
+		0000h if no name
+    <= 5 BYTEs	???
+---v2.22-2.42,2.52,2.60 window/task object---
+ 14h	BYTE	00h window, 01h task
+ 15h	BYTE	internal (not Switch menu) window number???
+ 16h	BYTE	internal (not Switch menu) window number???
+ 17h	WORD	segment of internal window record (see #00417)
+ 19h  2 BYTEs	???
+ 1Bh	BYTE	cursor row
+ 1Ch	BYTE	cursor column
+ 1Dh	BYTE	visible window origin, row
+ 1Eh	BYTE	visible window origin, column
+ 1Fh	BYTE	window height (logical)
+ 20h	BYTE	window width (logical)
+ 21h	BYTE	window position, row
+ 22h	BYTE	window position, column
+ 23h	BYTE	window height (visible)
+ 24h	BYTE	window width (visible)
+ 25h	BYTE	row of top of frame (or window if unframed)
+ 26h	BYTE	column of left of frame (or window if unframed)
+ 27h	BYTE	window height (physical, including frame)
+ 28h	BYTE	window width (physical, including frame)
+ 29h	BYTE	unzoomed visible origin, row (00h before first zoom)
+ 2Ah	BYTE	unzoomed visible origin, column (00h before first zoom)
+ 2Bh	BYTE	unzoomed window position, row (00h before first zoom)
+ 2Ch	BYTE	unzoomed window position, column (00h before first zoom)
+ 2Dh	BYTE	unzoomed window height (00h before first zoom)
+ 2Eh	BYTE	unzoomed window width (00h before first zoom)
+		unzoomed parameters above are updated when window is zoomed
+		  to full screen
+ 2Fh	BYTE	??? initially logical window height
+ 30h	BYTE	??? initially logical window width
+ 31h  2 BYTEs	???
+ 33h	BYTE	minimum height of window
+ 34h	BYTE	minimum width of window
+ 35h	BYTE	maximum height of window
+ 36h	BYTE	maximum width of window
+ 37h  3 BYTEs	???
+ 3Ah  8 BYTEs	window frame characters: ul,ur,ll,lr,t,b,l,r
+ 42h 24 BYTEs	attributes???
+ 5Ah  8 BYTEs	window frame characters: ul,ur,ll,lr,t,b,l,r
+ 62h  3 BYTEs	???
+ 65h	BYTE	??? bitflags
+ 66h	BYTE	bit 0: window is zoomed
+ 67h	BYTE	???
+ 68h	WORD	offset in common memory of window name or 0000h if untitled
+ 6Ah	WORD	length of window name
+ 6Ch  2 BYTEs	???
+ 6Eh	WORD	offset of logical cursor in window (in character cells)
+ 70h	DWORD	pointer to field table for window
+ 74h	BYTE	???
+ 75h  2 BYTEs	???
+ 77h	BYTE	number of last-visited field
+ 78h	DWORD	pointer to field table entry for last-visited field
+ 7Ch  3 BYTEs	???
+ 7Fh	BYTE	select field marker character
+ 80h	BYTE	??? bit flags
+		bit 0: allow ECh window stream opcode to change reverse logattr
+		bit 1: alternate field processing mode selected
+ 81h	BYTE	???
+ 82h	DWORD	notification function (manager stream opcode 8Ah)
+		no notification if segment = 0000h
+ 86h	DWORD	notification argument (manager stream opcode 8Bh)
+ 8Ah	WORD	offset in common memory of ??? window object or 0000h
+ 8Ch	WORD	offset in common memory of ??? window object or 0000h
+ 8Eh	WORD	offset in common memory of ??? window object or 0000h
+ 90h	BYTE	??? bitflags
+ 91h	BYTE	???
+ ---task object only
+ 92h	BYTE	bit flags (bits 0-4)
+ 93h	BYTE	character for ??? (default 20h)
+ 94h	BYTE	??? flag
+ 95h	WORD	offset in common memory of ???
+ 97h  2 BYTEs	???
+ 99h	WORD	???
+ 9Bh	BYTE	??? bit flags
+		bit 3: ???
+		bit 6: perform protected-attribute processing on select fields
+ 9Ch	BYTE	???
+ 9Dh	WORD	offset in common memory of current register save record
+		  (see #00415).	No register save record in use if < 01C0h
+ 9Fh	WORD	offset in common memory of task's keyboard object
+ A1h	WORD	offset in common memory of task's OBJECTQ object
+ A3h	WORD	offset in common memory of task's mailbox object
+ A5h	WORD	semaphore: FFFFh if on user stack, else on task's private stack
+ A7h	DWORD	user's SS:SP
+ ABh	WORD	task's private SP (SS read from offset 0Ah)
+ ADh  6 BYTEs	???
+ B3h	BYTE	??? bit flags
+		bit 0: run in foreground only
+ B4h	BYTE	???
+ B5h	BYTE	??? bitflags
+ B6h	BYTE	task status (see #00555 at AX=DE2Ch)
+ B7h  9 BYTEs	???
+ C0h	WORD	head pointer for keyboard buffer (wraps back to 00h after 80h)
+ C2h	WORD	tail pointer for keyboard buffer (wraps back to 00h after 80h)
+ C4h  2 BYTEs	??? (0000h)
+ C6h	WORD	segment of keyboard buffer for task
+ C8h	WORD	offset in common memory of ??? keyboard object
+ CAh	BYTE	???
+---v2.22-2.42
+ CBh	WORD	offset in common memory of ??? object
+ CEh	BYTE	??? flag
+ CFh	WORD	offset in common memory of default notify window for task
+		  or 0000h if none
+ D1h  4 BYTEs	???
+ D5h	BYTE	window number on Switch Window menu
+ D6h  5 BYTEs	???
+ DBh	WORD	offset in common memory of ??? object
+ DDh  2 BYTEs	???
+ DFh	WORD	API level for task
+ E1h	WORD	offset in common memory of object task is waiting on if task
+		  status is 'waiting', else 0000h
+ E7h	WORD	segment of ???
+ E9h 4	BYTEs	???
+ EDh	WORD	EMS handle of virtualization buffer, 0000h if no virtualization
+ F1h 12 BYTEs	???
+ FBh	WORD	???
+ FDh	BYTE	???
+ FFh 12 BYTEs	???
+10Bh	DWORD	pointer to process record (see #00418,#00419)
+10Dh 10 BYTEs	???
+119h	DWORD	SS:SP for ???
+11Dh  4 BYTEs	???
+121h	DWORD	pointer to ???
+125h 25 BYTEs	???
+13Eh	DWORD	pointer to ??? in system memory
+---v2.22
+142h  3 BYTEs	???
+145h		task's default keyboard object
+---v2.42
+142h	DWORD	pointer to first task instance data record in system memory
+148h	DWORD	pointer to last task instance data record in system memory
+		(see #00420)
+14Ah	BYTE	???
+14Dh 42 BYTEs	task's default keyboard object
+177h 32 BYTEs	task's ObjectQ object
+197h 41 BYTEs	task's default mailbox object
+1C0h 24 BYTEs	first register save record
+450h	--	default top of private stack
+---v2.52 (probably all DV/X)
+Same as v2.60 below except there is an extra 29 bytes inserted somewhere
+  before offset 9Fh, but not yet known exactly where.  Also, for the WAIT_ON
+  field (v2.60 offset E3h), some X apps (probably waiting on a socket) have
+  0000h even when waiting.
+---v2.60
+ CBh	WORD	??? (added in 2.50 - rest is same as 2.42)
+ CDh	WORD	offset in common memory of ??? object
+ D0h	BYTE	??? flag
+ D1h	WORD	offset in common memory of default notify window for task
+		  or 0000h if none
+ D3h  4 BYTEs	???
+ D7h	BYTE	window number on Switch Window menu
+ D8h  5 BYTEs	???
+ DDh	WORD	offset in common memory of ??? object
+ DFh  2 BYTEs	???
+ E1h	WORD	API level for task
+ E3h	WORD	If status at B6h=waiting, offset in common memory of object
+		  that task is waiting on, else 0000h. (Task with CPU also
+		  has 0000h here)
+ E9h	WORD	segment of ???
+ EBh 4	BYTEs	???
+ EFh	WORD	EMS handle of virtualization buffer, 0 if no virtualization
+ F3h 12 BYTEs	???
+ FDh	WORD	???
+ FFh	BYTE	???
+101h  8 BYTEs	???
+109h	DWORD	pointer to process record in system memory
+10Dh 14 BYTEs  ???
+11Bh	DWORD	SS:SP for ???
+11Fh  4 BYTEs	???
+123h	DWORD	pointer to ???
+127h 25 BYTEs	???
+140h	DWORD	pointer to ??? in system memory
+144h	DWORD	pointer to first task instance data record in system memory
+148h	DWORD	pointer to last task instance data record in system memory
+		(from INT 15/AX=DE27h) (see #00420)
+14Ch	BYTE	???
+14Eh 42 BYTEs	task's default keyboard object
+179h 32 BYTEs	task's ObjectQ object
+199h 41 BYTEs	task's default mailbox object
+1C2h 24 BYTEs	first register save record
+452h	--	default top of private stack
+
+Format of DESQview Register Save Record:
+Offset	Size	Description	(Table 00415)
+ 00h	WORD	AX
+ 02h	WORD	BX
+ 04h	WORD	CX
+ 06h	WORD	DX
+ 08h	WORD	DI
+ 0Ah	WORD	SI
+ 0Eh	WORD	DS
+ 10h	WORD	ES
+ 12h	DWORD	return address
+ 16h	WORD	original flags
+
+Format of DESQview mapping context record:
+Offset	Size	Description	(Table 00416)
+ 00h	WORD	lowest segment in process's memory
+		(often start of system memory chain)
+ 02h	WORD	size of process's memory in paragraphs
+ 04h	BYTE	flag: 00h if process swapped out, 01h otherwise
+ 05h	BYTE	flag: 00h if allocated in conventional memory, 01h if EMS
+ 06h  2 BYTEs	???
+ 08h	WORD	EMS handle if in EMS, else 0
+ 0Ah  2 BYTEs	??? (nonzero if system memory resides in shared mem???)
+ 0Ch	WORD	segment of system memory block that contains process record,
+		  referenced from segment of start of system memory chain
+ 0Eh	BYTE	???
+ 0Fh	WORD	size of system memory block that contains process record
+		  and DOS memory in paragraphs
+ 11h	BYTE	bit flags
+		Bit 0: Swapped out???
+		Bit 1: ???
+		Bit 2: Swapped out???
+ 12h	BYTE	???
+ 13h	BYTE	reference count
+ ---v2.31
+ 14h 10 BYTEs	???
+ 1Eh	WORD	segment of process record
+ 20h  2 BYTEs	???
+ 22h	WORD	segment of ???	(in first free system memory block???)
+ 24h	WORD	segment of end of system memory chain
+ 26h	WORD	segment of start of system memory chain
+ 28h  8 BYTEs	???
+ 2Ah	DWORD	pointer to ??? (process record???)
+ 2Dh 10 BYTEs	???
+ 37h	BYTE	lowest interrupt vector to save on context switch
+ 38h	BYTE	highest interrupt vector to save on context switch
+ 39h	WORD	offset in common memory of main task with this context
+ 3Ah 12 BYTEs	???
+ 46h	BYTE	internal mapping context number
+ 47h 12 BYTEs	???
+ ---v2.5x-2.60
+ 14h  6 BYTEs	???
+ 1Ah	WORD	segment of process record
+ 1Ch  2 BYTEs	???
+ 1Eh	WORD	segment of first free system memory block
+ 20h	WORD	segment of start of system memory chain
+ 22h	WORD	segment of end of system memory chain
+ 24h 8	BYTEs	???
+ 2Ch	DWORD	pointer to ??? (1 segment into process record???)
+ 30h 3	BYTEs	???
+ 33h	WORD	Offset in common memory of main task with this context
+ 35h 7	BYTEs	???
+ 3Ch	BYTE	internal mapping context number
+ 3Dh 14 BYTEs	???
+ 4Bh	WORD	first DOS memory segment (first MCB segment+1)
+ 4Dh	BYTE	??? (flag???)
+ ---v2.53 (2.5x???)
+ 4Eh 12 BYTEs	???
+ ---v2.60
+ 4Eh	WORD	segment of script buffer (see #00421)
+ 50h  6 BYTEs	???
+
+Format of DESQview Internal Window Record (v2.31-2.60):
+Offset	Size	Description	(Table 00417)
+ 00h	BYTE	internal window number???
+ 01h	BYTE	display page???
+ 02h	BYTE	video mode
+ 03h  3 BYTEs	???
+ 06h	BYTE	logical window height
+ 07h	BYTE	logical window width
+ 08h	DWORD	pointer to text video buffer
+ 0Ch 116 BYTEs	???
+
+Format of DESQview process record (v2.31):
+Offset	Size	Description	(Table 00418)
+-470h 13 BYTEs	filename of ??? Script
+-463h 1117 BYTEs ??? (script buffer???)
+ -6h  6 BYTEs	???
+ 00h	WORD	segment of parent PSP in process
+ 02h  5 BYTEs	???
+ 07h	WORD	segment of current PSP in process
+ 09h	WORD	segment of first MCB in process
+ 0Bh 13 BYTEs	???
+ 18h 1024 BYTEs process's interrupt vector table
+418h 376 BYTEs	???
+590h		first MCB in process
+SeeAlso: #00419
+
+Format of DESQview process record (v2.52-v2.60) (probably also 2.5x):
+Offset	Size	Description	(Table 00419)
+ 00h 28 BYTEs	EXE header of last EXE, ??? if last program run was COM
+ 1Ch ??? BYTEs	overwritten with ASCIZ filename of last program run (EXE/COM)
+11Ch	WORD	segment of parent PSP in process
+11Eh  4 BYTEs	???
+122h	WORD	segment of current PSP
+124h	WORD	segment of current PSP
+126h	WORD	segment of first MCB in process
+128h  4 BYTEs	???
+12Ch	DWORD	pointer to first process instance data record in system memory
+130h	DWORD	pointer to last process instance data record in system memory
+		(from INT 15/AX=DE27h) (see #00420)
+134h  8 BYTEs	???
+13Ch	WORD	size of current environment
+13Eh	WORD	segment of current environment
+140h	WORD	segment of current PSP
+142h	DWORD	entry point of current program
+146h 10 BYTEs	???
+---v2.52 (v2.5x???)
+150h	BYTE	???
+151h	WORD	segment of parent PSP in process
+153h	WORD	???
+155h	WORD	???
+157h	WORD	???
+159h  4 BYTEs	???
+15Dh	WORD	segment of current environment
+15Fh	WORD	segment of current PSP
+161h	WORD	segment of ???
+162h	WORD	???
+164h  3 BYTEs	???
+168h 1024 BYTEs process's interrupt vector table
+568h 120 BYTEs	???
+5E0h		first MCB in process
+---v2.60
+150h	WORD	segment of parent PSP in process
+152h	WORD	???
+154h	WORD	???
+156h	WORD	???
+158h  4 BYTEs	???
+15Ch	WORD	segment of current environment
+15Eh	WORD	segment of current PSP
+160h	WORD	segment of ???
+162h	WORD	???
+164h 1024 BYTEs process's interrupt vector table
+564h 108 BYTEs	???
+5D0h		first MCB in process
+SeeAlso: #00418
+
+Format of DESQview task or process instance data record (v2.5x???, v2.60):
+Offset	Size	Description	(Table 00420)
+ 00h	DWORD	pointer to next record of same type or 00000000
+ 04h	DWORD	pointer to previous record of same type or 00000000
+ 08h	DWORD	pointer to source area of memory during restore state
+ 0Ch	WORD	number of bytes to save/restore
+ 0Eh	DWORD	pointer to destination area of memory during restore state
+ 12h	WORD	??? (0)
+ 14h  N BYTEs	source memory buffer during restore state
+
+Format of DESQview script buffer (v2.60):
+Offset	Size	Description	(Table 00421)
+ 00h 13 BYTEs	ASCIZ Script filename
+ 0Dh 80 BYTEs	???
+ 5Eh  N BYTEs	script records (see #00422)
+
+Format of one DESQview script record (v2.60):
+Offset	Size	Description	(Table 00422)
+ 00h	BYTE	signature 12h
+ 01h 18 BYTEs	blank-padded script name
+ 13h	BYTE	ASCII code of key attached to script or 0 if non-ASCII key
+ 14h	BYTE	scan code of key attached to script if non-ASCII, else 0
+ 15h	BYTE	???
+ 16h	WORD	size of script in bytes
+ 18h  N	BYTEs	script (ASCII code of each keystroke; if 0, next byte is
+		  scan code of non-ASCII key)
+SeeAlso: #00421
+
+Format of DESQview Common Memory Header (v2.31-2.60):
+Offset	Size	Description	(Table 00423)
+ 00h	WORD	offset of lowest used block
+ 02h	WORD	bytes of commom memory, including header
+ 04h	WORD	offset of first free block
+ 06h  N BYTEs	size depends of DV version, ??? (DVP buffer???)
+Note:	the above is located at the beginning of the commom memory segment
+SeeAlso: #00424,#00425,#00433
+
+Format of DESQview Free block header:
+Offset	Size	Description	(Table 00424)
+ 00h	WORD	size of block in bytes including header
+ 02h	WORD	offset of next free block
+ 04h  N BYTEs	free block
+SeeAlso: #00423,#00425
+
+Format of DESQview Used block header:
+Offset	Size	Description	(Table 00425)
+ 00h	WORD	size of block in bytes including header
+ 02h  N BYTEs	used block
+SeeAlso: #00423,#00424
+--------Q-151017-----------------------------
+INT 15 - TopView - UNIMPLEMENTED IN DV 2.x
+	AX = 1017h
+Return: pops up "Programming error" window in DV 2.x
+--------Q-151018-----------------------------
+INT 15 - TopView - "LOCATE" - FIND WINDOW AT A GIVEN SCREEN LOCATION
+	AX = 1018h
+	BH = column
+	BL = row
+	ES = segment of object handle for window below which to search
+	    0000h = start search with topmost window
+Return: ES = segment of object handle for window which is visible at the
+	       indicated position, or covered by indicated window
+	    0000h if no window
+SeeAlso: AX=1023h,AX=1024h
+--------Q-151019-----------------------------
+INT 15 - TopView - "SOUND" - MAKE TONE
+	AX = 1019h
+	BX = frequency in Hertz (0000h = silence)
+	CX = duration in clock ticks (18.2 ticks/sec)
+Return: immediately, tone continues to completion
+Notes:	if another tone is already playing, the new tone does not start until
+	  completion of the previous one.  Up to 32 tones may be queued before
+	  the process is blocked until a note completes.
+	in DV 2.00, the lowest tone allowed is 20 Hz
+	if CX = 0, the current note is cancelled; if BX = 0 as well, all queued
+	  notes are also cancelled
+SeeAlso: AH=82h"HUNTER",INT 16/AH=73h
+--------Q-15101A-----------------------------
+INT 15 - TopView - "OSTACK" - SWITCH TO TASK'S INTERNAL STACK
+	AX = 101Ah
+Return: stack switched
+Notes:	this call may not be nested; a second call must be preceded by a call
+	  to "USTACK" (AX=1025h)
+	while TopView requires many API calls to be executed while on the
+	  task's internal stack, DESQview allows those calls to be executed
+	  regardless of the current stack
+SeeAlso: AX=1025h
+--------Q-15101B-----------------------------
+INT 15 - TopView - "BEGINC" - BEGIN CRITICAL REGION
+	AX = 101Bh
+Return: task-switching temporarily disabled
+Notes:	will not task-switch until "ENDC" (AX = 101Ch) called unless task
+	  voluntarily releases the CPU (upon regaining the CPU, task-switching
+	  will again be disabled)
+	suspends the caller until DOS is free
+SeeAlso: AH=0Dh"MultiDOS",AX=101Ch,AX=DE13h,AX=DE1Ch,INT 2F/AX=1681h
+SeeAlso: INT 60/DI=0602h
+--------Q-15101C-----------------------------
+INT 15 - TopView - "ENDC" - END CRITICAL REGION
+	AX = 101Ch
+Return: task-switching enabled
+Note:	this API call may be made from within a hardware interrupt handler
+SeeAlso: AX=101Bh,AX=DE13h,AX=DE1Bh,INT 2F/AX=1682h,INT 60/DI=0603h
+--------Q-15101D-----------------------------
+INT 15 - TopView - "STOP" - STOP TASK
+	AX = 101Dh
+	ES = segment of object handle for task to be stopped
+	    (== handle of main window for that task)
+Return: indicated task will not get any CPU time until restarted with AX=101Eh
+Note:	once a task has been stopped, additional "STOP"s are ignored
+BUG:	in DV 2.00, this function is ignored unless the indicated task is the
+	  current task
+SeeAlso: AX=101Eh,AX=102Bh,AH=12h"VMiX",INT 21/AH=81h
+--------Q-15101E-----------------------------
+INT 15 - TopView - "START" - START TASK
+	AX = 101Eh
+	ES = segment of object handle for task to be started
+	    (== handle of main window for that task)
+Return: indicated task is started up again
+Note:	once a task has been started, additional "START"s are ignored
+SeeAlso: AX=101Dh,AX=102Bh,INT 21/AH=82h
+--------Q-15101F-----------------------------
+INT 15 - TopView - "DISPEROR" - POP-UP ERROR WINDOW
+	AX = 101Fh
+	BX = bit fields
+	    bits 0-12: number of characters to display
+	    bits 13,14: which mouse button may be pressed to remove window
+			 00 = either
+			 01 = left
+			 10 = right
+			 11 = either
+	    bit 15: beep if 1
+	ES:DI -> text of message
+	CH = width of error window (0 = default)
+	CL = height of error window (0 = default)
+	DX = segment of object handle
+Return: BX = status: 1 = left button, 2 = right, 27 = ESC pressed
+Note:	window remains on-screen until ESC or indicated mouse button is pressed
+--------Q-151020-----------------------------
+INT 15 - TopView - UNIMPLEMENTED IN DV v2.00+
+	AX = 1020h
+Return: pops up "Programming error" window in DV v2.00+
+--------Q-151021-----------------------------
+INT 15 - TopView - "PGMINT" - INTERRUPT ANOTHER TASK
+	AX = 1021h
+	BX = segment of object handle for task to interrupt (not self)
+	DX:CX -> FAR routine to jump to next time task is run
+Return: nothing
+Notes:	the FAR routine is entered with the current ES, DS, SI, DI, and BP
+	  values, using the task's internal stack (see AX=101Ah); only SS:SP
+	  needs to be preserved
+	multiple PGMINTs to a single task are processed last-in first-out
+	if the other task is in a DOS or DV API call, the interruption will
+	  occur on return from that call
+--------Q-151022BX0000-----------------------
+INT 15 - TopView - "GETVER" - GET VERSION
+	AX = 1022h
+	BX = 0000h
+Return: BX nonzero, TopView or compatible loaded
+	(BL = major version, BH = minor version)
+Notes:	TaskView returns BX = 0001h, DESQview v2.00+ returns BX = 0A01h
+--------Q-151023-----------------------------
+INT 15 - TopView - "POSWIN" - POSITION WINDOW
+	AX = 1023h
+	BX = segment of object handle for parent window within which to
+	       position the window (0 = full screen)
+	ES = segment of object handle for window to be positioned
+	DL = general window position (see #00426)
+	CH = number of columns to offset from position specified by DL
+	CL = number of rows to offset from position specified by DL
+Return: nothing
+
+Bitfields for TopView general window position:
+Bit(s)	Description	(Table 00426)
+ 0,1	horizontal position
+	00 = current, 01 = center, 10 = left, 11 = right
+ 2,3	vertical position
+	00 = current, 01 = center, 10 = top, 11 = bottom
+ 4	don't redraw screen if set
+ 5-7	not used
+--------Q-151024-----------------------------
+INT 15 - TopView - "GETBUF" - GET VIRTUAL SCREEN INFO
+	AX = 1024h
+	BX = segment of object handle for window (0000h = use default)
+Return: ES:DI -> virtual screen
+	CX = size of virtual screen in bytes
+	DL = screen type
+	    00h text screen
+	    01h graphics screen
+SeeAlso: INT 10/AH=FEh,INT 21/AH=2Bh/CX=4445h
+--------Q-151025-----------------------------
+INT 15 - TopView - "USTACK" - SWITCH BACK TO USER'S STACK
+	AX = 1025h
+Return: stack switched back
+Notes:	call only after having switched to internal stack with AX=101Ah
+	while TopView requires many API calls to be executed while on the
+	  task's private stack, DESQview allows those calls to be executed
+	  regardless of the current stack
+SeeAlso: AX=101Ah
+--------Q-1510-------------------------------
+INT 15 - DESQview (TopView???) - UNIMPLEMENTED IN DV 2.x
+	AH = 10h
+	AL = 26h thru 2Ah
+Return: pops up "Programming error" window in DV 2.x
+--------Q-15102B-----------------------------
+INT 15 - DESQview v2.00+ (TopView???) - "POSTTASK" - AWAKEN TASK
+	AX = 102Bh
+	BX = segment of object handle for task
+Return: nothing
+Note:	forces a task which is waiting on its objectq to continue by placing
+	  the handle for the task on the objectq
+SeeAlso: AX=101Dh,AX=101Eh,INT 21/AH=82h
+--------Q-15102C-----------------------------
+INT 15 - DESQview v2.00+ - "NEWPROC" - START NEW APPLICATION IN NEW PROCESS
+	AX = 102Ch
+	ES:DI -> contents of .PIF/.DVP file (see #00427)
+	BX = size of .PIF/.DVP info
+Return: BX = segment of object handle for new task
+	    0000h on error
+SeeAlso: AX=DE24h,INT 21/AH=4Bh
+
+Format of .PIF/.DVP file:
+Offset	Size	Description	(Table 00427)
+ 00h	BYTE	reserved (0)
+ 01h	BYTE	checksum of bytes 02h through 170h
+ 02h 30 BYTEs	blank-padded program title
+ 20h	WORD	maximum memory to allocate to partition in KB
+ 22h	WORD	minimum memory required in KB
+ 24h 64 BYTEs	ASCIZ program pathname
+ 64h	BYTE	default drive letter ('A',...)
+ 65h 64 BYTEs	ASCIZ default directory name
+ A5h 64 BYTEs	ASCIZ program parameters
+ E5h	BYTE	initial screen mode (0-7) (also see offset 189h)
+ E6h	BYTE	number of text pages used
+ E7h	BYTE	number of first interrupt to save
+ E8h	BYTE	number of last interrupt to save
+ E9h	BYTE	rows in virtual screen buffer
+ EAh	BYTE	columns in virtual screen buffer
+ EBh	BYTE	initial window position, row
+ ECh	BYTE	initial window position, column
+ EDh	WORD	system memory in KB
+ EFh 64 BYTEs	ASCIZ shared program name
+12Fh 64 BYTEs	ASCIZ shared program data file
+16Fh	BYTE	program flags 1 (see #00428)
+170h	BYTE	flags2
+		bit 6: uses command-line parameters in field at A5h
+		bit 5: swaps interrupt vectors
+---information unique to .DVP files---
+171h  2 BYTEs	keys to use on open menu
+173h	WORD	size of script buffer in bytes
+175h	WORD	automatically give up CPU after this many tests for keyboard
+		  input in one clock tick (default 0 = never)
+177h	BYTE	nonzero = "uses own colors"
+178h	BYTE	nonzero if application swappable
+179h  3 BYTEs	reserved (0) according to Quarterdeck documentation
+		in actual .DVP files, frequently 01h
+17Ch	BYTE	nonzero to automatically close on exit (see also #00430)
+17Dh	BYTE	nonzero if copy-protect floppy is required
+---information unique to DESQview 2.0+---
+17Eh	BYTE	.DVP version number
+		00h DESQview v1.2+
+		01h DESQview v2.0+
+		02h DESQview v2.2+
+17Fh	BYTE	reserved (0)
+180h	BYTE	initial number of rows in physical window
+181h	BYTE	initial number of columns in physical window
+182h	WORD	maximum expanded memory to allow, in KB
+184h	BYTE	DVP program flags 3 (see #00429)
+185h	BYTE	keyboard conflict level (0-4 for DV<2.26, 00h-0Fh for DV2.26+)
+		(see #00431)
+186h	BYTE	number of graphics pages used
+187h	WORD	extra system memory size
+189h	BYTE	initial screen mode (FFh = default) (overrides offset E5h)
+---information unique to DESQview 2.2+---
+18Ah	BYTE	serial port usage
+		FFh uses all serial ports
+		00h no serial ports
+		01h only COM1
+		02h only COM2
+18Bh	BYTE	DVP program flags 4 (see #00430)
+18Ch	BYTE	protection level for 386 machines
+18Dh 19 BYTEs	reserved (0) for regular DESQview
+---information unique to DESQview/X 1.0---
+18Dh	BYTE	X flags
+		bits 3-7: unused (0)
+		bit 2: don't display wait message when opening window
+		bit 1: don't display DOS window
+		bit 0: (XNEWPROC) use DOS client layer (DOS-to-X)
+		       (NEWPROC) inherit DOS client layer usage
+18Eh	BYTE	X keyboard behavior (0-3)
+18Fh	BYTE	font scaling
+		00h fixed fonts
+		01h scalable fonts
+190h 10 BYTEs	reserved (0)
+19Ah	WORD	length of data follownig XDVP signature
+19Ch  4 BYTEs	signature "XDVP"
+1A0h  N BYTEs	list of variable length records (see #00432)
+
+Bitfields for .PIF/.DVP program flags 1:
+Bit(s)	Description	(Table 00428)
+ 7	writes text directly to screen
+ 6	runs in foreground only (see also #00427 offset 184h)
+ 5	uses math coprocessor
+ 4	accesses system keyboard buffer directly
+ 3-1	reserved (0)
+ 0	swappable
+SeeAlso: #00427,#00429,#00430
+
+Bitfields for .DVP program flags 3:
+Bit(s)	Description	(Table 00429)
+ 7	automatically assign window position
+ 5	maximum memory value has been specified
+ 4	disallow "Close" command
+ 3	foreground-only when doing graphics
+	set by DV 2.3+ when "Runs in Background" = "D" (undoc)
+ 2	don't virtualize (see also #00430)
+ 1	foreground-only during DOS calls
+	set by DV 2.3+ when "Runs in Background" = "D" (undoc)
+SeeAlso: #00427,#00428,#00430
+
+Bitfields for .DVP program flags 4:
+Bit(s)	Description	(Table 00430)
+ 7	automatically close application on exit if .COM or .EXE	specified
+	(see also #00427 offset 17Ch)
+ 6	swappable if not using serial ports
+ 5	start program with window hidden (v2.26+)
+ 4	start program in background (v2.26+)
+ 3	virtualize text (see also #00429)
+ 2	virtualize graphics (see also #00429)
+ 1	share CPU when foreground
+ 0	share EGA when foreground and zoomed
+SeeAlso: #00427,#00428,#00429
+
+Bitfields for DESQview keyboard conflict level:
+Bit(s)	Description	(Table 00431)
+ 3	save/restore entire INT 09 handler state every taskswtch
+ 2	take special precautions for programs which read the BIOS keyboard
+	  buffer directly from memory
+ 1	never indicate keystroke available during scripts/xfers
+ 0	only indicate keystroke available every sixth poll
+SeeAlso: #00427
+
+Format of DESQview/X variable length record:
+Offset	Size	Description	(Table 00432)
+ 00h	WORD	length of following record, 0000h if end of record list
+ 02h	BYTE	record type
+		01h script filename, up to 64 characters
+		02h command-line parameters (allows >64 characters on cmdline)
+		03h environment inheritance
+		04h environment string
+		05h starting window position
+---types 01h,02h,04h---
+ 03h  N BYTEs	ASCII data
+---type 03h---
+ 03h	BYTE	inheritance
+		00h do not inherit
+		01h inherit environment
+---type 05h---
+ 03h  N BYTEs	ASCII copy of fields as typed into DVPMAN, separated by commas:
+		starting row, starting column, starting height, starting width
+Note:	if there are multiple occurrences of record types 01h, 02h, or 03h,
+	  only the last instance of each type is used; multiple occurrences of
+	  type 04h are concatenated
+SeeAlso: #00427
+--------Q-15102D-----------------------------
+INT 15 - DESQview v2.00+ - "KMOUSE" - KEYBOARD MOUSE CONTROL
+	AX = 102Dh
+	BL = subfunction
+	    00h determine whether using keyboard mouse
+		Return: BL = 00h using real mouse
+			     01h using keyboard mouse
+	    01h turn keyboard mouse on
+	    02h turn keyboard mouse off
+SeeAlso: INT 33/AX=0024h
+--------Q-15102E-----------------------------
+INT 15 - DESQview v2.40+ - ALLOCATE SYSTEM MEMORY
+	AX = 102Eh
+	BX = number of bytes
+Return: AX = status
+	    0000h successful
+		ES:DI -> allocated system memory (see #00433)
+	    0001h failed
+		ES:DI = 0000h:0000h
+Note:	under DV 2.42, this call is identical to AX=1001h
+SeeAlso: AX=1001h,AX=1002h,AX=DE0Ch
+
+Format of DESQview system memory block header:
+Offset	Size	Description	(Table 00433)
+ 00h	WORD	segment of next header or 0000h
+ 02h	WORD	segment of previous header or 0000h
+ 04h	WORD	size of block in paragraphs, including header
+ 06h	BYTE	availability flag (00h in use, 01h free)
+Note:	this header is located one paragraph before the memory block proper
+SeeAlso: #00423
+--------Q-1511-------------------------------
+INT 15 - TopView commands
+	AH = 11h
+	AL = various (except 17h)
+Return: varies by function
+Note:	in DESQview 2.x, these function calls are identical to AH=DEh, so
+	  see those below
+SeeAlso: AX=DE00h,AX=DE22h,AX=DE30h
+--------T-1511-------------------------------
+INT 15 - VMiX - "sys_system" - EXECUTE SHELL SYSTEM COMMANDS
+	AH = 11h
+	STACK:	DWORD	pointer to ASCIZ string containing a VMiX shell
+			request (max len = 127)
+Return: AX = status (SYS_OK or SYS_ERROR)
+SeeAlso: AH=0Ch"VMiX"
+--------T-1511-------------------------------
+INT 15 - MultiDOS Plus - TURN OFF AltZ TOGGLE
+	AH = 11h
+Note:	disables the Alt-Z MultiDOS command/program-selection hotkey
+SeeAlso: AH=12h"MultiDOS"
+Index:	hotkeys;MultiDOS Plus
+--------Q-151117BX0000-----------------------
+INT 15 - DESQview v2.20+ - "ASSERTMAP" - GET/SET MAPPING CONTEXT
+	AX = 1117h
+	BX = 0000h	get current mapping context without setting
+	     nonzero	set new mapping context
+Return: BX = mapping context in effect before call
+	interrupts enabled
+Notes:	this function differs from AX = DE17h for DESQview v2.20 through 2.25
+	mapping contexts determine conventional-memory addressability; setting
+	  a mapping context ensures that the associated program and data areas
+	  are in memory for access.  Usable by drivers, TSRs and shared
+	  programs.
+	caller need not be running under DESQview, but must ensure that the
+	  stack in use will not be mapped out by the call
+SeeAlso: AX=DE17h,INT 2F/AX=1685h
+--------m-1511DE-----------------------------
+INT 15 - DESQview - QEXT.SYS - INSTALLATION CHECK
+	AX = 11DEh
+Return: CF clear if installed
+	    AX = segment at which QEXT.SYS is located
+Desc:	QEXT.SYS is Quarterdeck's HMA manager for DESQview; more recent
+	  versions also implement the XMS standard
+Note:	a private entry point (see #00434) may be found by searching the
+	  beginning of the returned segment for the signature string
+	  "QUARTERDECK EXTENDED MEMORY MANAGER 286"; the word immediately
+	  prior to the signature contains the QEXT version number in BCD,
+	  and the word prior to that contains the offset within the QEXT
+	  code segment of the private entry point
+SeeAlso: INT 2F/AX=4310h"XMS",INT 67/AH=3Fh
+
+(Table 00434)
+Call QEXT.SYS private entry point with:
+	AH = 00h ???
+	AH = nonzero ???
+--------T-1512-------------------------------
+INT 15 - VMiX - "sys_sleep" - PUT PROCESS TO SLEEP
+	AH = 12h
+	STACK:	WORD	process ID
+Return: AX = status (SYS_OK or SYS_ERROR)
+SeeAlso: AH=03h"MultiDOS",AX=101Dh,AH=13h"VMiX"
+--------T-1512-------------------------------
+INT 15 - MultiDOS Plus - TURN ON AltZ TOGGLE
+	AH = 12h
+Note:	enables the Alt-Z MultiDOS command/program-selection hotkey
+SeeAlso: AH=11h"MultiDOS"
+Index:	hotkeys;MultiDOS Plus
+--------Q-1512--BH00-------------------------
+INT 15 - TopView - SEND MESSAGE - "HANDLE" - RETURN OBJECT HANDLE
+	AH = 12h
+	BH = 00h
+	BL = which handle to return
+	    00h handle in DWORD on top of stack
+	    01h current task's window handle
+	    02h given task's mailbox handle (task's handle on stack)
+	    03h current task's mailbox handle
+	    04h given task's keyboard handle (task's handle on stack)
+	    05h current task's keyboard object handle
+	    06h given task's OBJECTQ handle (task's handle on stack)
+	    07h current task's OBJECTQ handle
+	    08h	  \
+	      thru > return 0000:0000 under DV < 2.26
+	    10h	  /
+	    0Ch (2.26+) task owning object with handle in DWORD on top of stack
+	    0Dh (2.26+) task handle of owner (parent) of current task
+Return: DWORD on top of stack is object handle
+Note:	BL=0Ch,0Dh returns 00000000h if the object is not open (keyboard,
+	  mailbox, panel, pointer, and timer objects) or is an orphan (task,
+	  window)
+SeeAlso: AH=12h/BH=02h,AH=12h/BH=80h
+--------Q-1512--BH01-------------------------
+INT 15 - TopView - SEND MESSAGE - "NEW" - CREATE NEW OBJECT
+	AH = 12h
+	BH = 01h
+	BL = object type to create (see #00435)
+	STACK: (only if window object or WINDOW class)
+	       DWORD address to jump to (no new task if high word == 0)
+	       DWORD (reserved) 0 = non-task window, FFFFh = task window
+	       DWORD bytes for task's private stack (FFFFh == default of 0100h)
+	       DWORD bytes system memory for input buffer for READ/READN
+			(0 == none, -1 == default--same as logical window size)
+	       DWORD window size, columns
+	       DWORD window size, rows
+	       DWORD length of window title
+	       DWORD address of window title
+Return: DWORD on top of stack is new object handle
+Notes:	if a new task is created, it is started with
+	  AX = BX = SI = DI = BP = 0
+	  DX:CX = handle of parent task
+	  DS = ES = SS = segment of private stack (and new task's handle)
+	new windows are orphans, inherit the colors/hidden status of the
+	  creating task's window, and are placed in the upper left hand corner
+	  of the screen but not automatically redrawn
+	new keyboards are closed, and have all object bits cleared except for
+	  the hardware cursor bit
+SeeAlso: AH=12h/BH=02h,AH=12h/BH=81h
+
+(Table 00435)
+Values for TopView/DESQview object type (for creation):
+ 00h	(DV 2.0x only) handle is DWORD on top of stack
+ 01h	(DV 2.0x only) use task's window handle
+ 02h	(DV 2.0x only) given task's mailbox (task's handle on stack)
+ 03h	(DV 2.0x only) current task's mailbox
+ 04h	(DV 2.0x only) given task's keyboard (task's handle on stack)
+ 05h	(DV 2.0x only) current task's keyboard object
+ 08h	WINDOW class
+ 09h	MAILBOX class
+ 0Ah	KEYBOARD class
+ 0Bh	TIMER object (counts down 32-bit time in 10ms increments)
+ 0Fh	POINTER object
+ 10h	PANEL object
+--------Q-1512--BH02-------------------------
+INT 15 - TopView - SEND MESSAGE - "FREE" - FREE AN OBJECT
+	AH = 12h
+	BH = 02h
+	BL = object
+	    00h handle in DWORD on top of stack
+		window: close window and free
+		timer: free timer
+		panel: free panel object
+		pointer: free pointer
+	    01h task's window handle - kills task, never returns
+	    02h given task's mailbox (task's handle on top of stack)
+	    03h current task's mailbox
+	    04h given task's keyboard (task's handle on top of stack)
+	    05h current task's keyboard object
+Return: STACK popped if handle passed on stack
+Notes:	when a window is freed, its keyboard and pointer objects are freed;
+	  task windows also free any mailbox, objectq, and panel objects held
+	  by the task and any child tasks
+	if the keyboard being freed is the default keyboard for a task, this
+	  call is equivalent to CLOSE
+	panel and pointer objects are automatically closed if open
+SeeAlso: AH=12h/BH=01h,AH=12h/BH=0Dh,AH=12h/BH=82h
+--------Q-1512--BH03-------------------------
+INT 15 - TopView - SEND MESSAGE - "ADDR" - GET HANDLE OF MESSAGE SENDER
+	AH = 12h
+	BH = 03h
+	BL = object
+	    00h mailbox handle in DWORD on top of stack
+	    02h sender of last msg read from mailbox (task's handle on stack)
+	    03h sender of last msg read from current task's mailbox
+Return: DWORD on stack is task handle of message sender
+SeeAlso: AH=12h/BH=00h,AH=12h/BH=83h
+--------Q-1512--BH03-------------------------
+INT 15 - DESQview v2.26+ - "CONNECT" - CONNECT TWO WINDOWS
+	AH = 12h
+	BH = 03h
+	BL = window to be connected
+	    00h handle of window to be attached in DWORD on top of stack
+	    01h attach current task's main window
+	STACK: DWORD handle of window to attach to or 00000000h to detach
+Return: STACK popped
+Notes:	when two windows are connected, both will move if the user moves either
+	multiple windows may be attached to a single window, but each window
+	  may only be attached to one window at a time
+SeeAlso: AH=12h/BH=83h
+--------Q-1512--BX0300-----------------------
+INT 15 - TopView - SEND MESSAGE - "DIR" - GET PANEL FILE DIRECTORY
+	AH = 12h
+	BX = 0300h
+	STACK: DWORD handle of panel object (see #00436)
+Return: STACK: DWORD length of directory (always multiple of 14 bytes)
+	       DWORD address of directory
+Note:	a null string is returned if the object is not open
+SeeAlso: AH=12h/BX=0400h"APPLY",AH=12h/BH=83h
+
+Format of TopView panel file:
+Offset	Size	Description	(Table 00436)
+ 00h  2 BYTEs	C0h C3h
+ 02h	BYTE	number of panels in file
+ 03h	for each panel in file:
+	    8 BYTEs  blank-padded panel name
+	      DWORD  panel offset in file
+	      WORD   panel length
+	data for panels (each consists of one or more window/query/manager
+	  streams); first byte of each panel must be 1Bh, fifth byte must be
+	  E5h
+--------Q-1512--BH04-------------------------
+INT 15 - TopView - SEND MESSAGE - "READ" - READ NEXT LOGICAL LINE OF WINDOW
+	AH = 12h
+	BH = 04h
+	BL = window to read from
+	    00h handle is DWORD on top of stack
+	    01h use calling task's default window
+	    0Ch (DV 2.26+) default window of task owning handle on top of stack
+	    0Dh (DV 2.26+) default window of parent task of current task
+Return: STACK:	DWORD number of bytes read
+		DWORD address of buffer
+Notes:	reading starts at the current logical cursor position; the cursor is
+	  updated to point at the character following the last one read
+	any translucent blanks (FFh) which are visible on screen are changed
+	  to the character which is seen through them
+	the string produced by the read is placed in an input buffer which may
+	  be reused by the next READ or READN of a window
+	window stream opcodes D8h and D9h determine whether the read returns
+	  characters or attributes
+SeeAlso: AH=12h/BH=05h"WINDOW",AH=12h/BH=12h,AH=12h/BH=84h
+--------Q-1512--BH04-------------------------
+INT 15 - TopView - SEND MESSAGE - "READ" - GET NEXT RECORD FROM OBJECT
+	AH = 12h
+	BH = 04h
+	BL = object
+	    00h handle is DWORD on top of stack
+		mailbox: wait for and get next message
+		keyboard: wait for and get pointer to next input buffer
+		pointer: wait for and get next message
+	    02h get next message from mailbox (task's handle on top of stack)
+	    03h get next message from current task's mailbox
+	    04h get the next input from keyboard (handle on top of stack)
+	    05h get the next input from task's default keyboard
+	    06h wait for input from any object in OBJECTQ (handle on stack)
+	    07h wait for input from any object in task's default OBJECTQ
+Return: STACK: (if objectq) DWORD handle of object with input
+	       (otherwise)  DWORD number of bytes
+			    DWORD address of pointer message (see #00437)
+Notes:	for a keyboard in keystroke mode, the input buffer is a single byte
+	  containing the character code as returned by the BIOS; the BIOS scan
+	  code is available via the STATUS call if the character is zero
+	for a keyboard in field mode, the input buffer format is determined
+	  by the field table header for the window the keyboard is attached to
+	keyboard input buffers and mailbox message buffers may be invalidated
+	  by the next READ, ERASE, CLOSE, or FREE message to the same object
+SeeAlso: AH=12h/BH=05h"OBJECT",AH=12h/BH=84h
+
+Format of DESQview pointer message:
+Offset	Size	Description	(Table 00437)
+ 00h	WORD	row
+ 02h	WORD	column
+ 04h	BYTE	status (see #00438)
+ 05h	BYTE	field number or zero (APILEVEL >= 2.00 only)
+
+Bitfields for DESQview pointer status:
+Bit(s)	Description	(Table 00438)
+ 7-2	number of clicks-1 if multiple-click mode active
+ 7	set when press/release mode active and button pressed
+ 6	set when press/release mode active and button released
+ 1-0	button pressed (00=none,01=button1,10=button2)
+SeeAlso: #00437
+--------Q-1512--BX0400-----------------------
+INT 15 - TopView - SEND MESSAGE - "READ" - WAIT FOR TIMER TO EXPIRE
+	AH = 12h
+	BX = 0400h
+	STACK: DWORD timer's handle
+Return: after timer expires
+	STACK: DWORD time in 1/100 sec after midnight when timer expired
+SeeAlso: AH=12h/BH=0Ah,AH=12h/BH=84h
+--------Q-1512--BX0400-----------------------
+INT 15 - TopView - SEND MESSAGE - "APPLY" - WRITE PANEL TO WINDOW
+	AH = 12h
+	BX = 0400h
+	STACK: DWORD handle of panel object
+	       DWORD window's handle (or 0 for current task's window)
+	       DWORD length of panel name
+	       DWORD pointer to panel name
+Return: STACK: DWORD handle of window which was used
+	       DWORD handle of keyboard or 0
+Notes:	status of APPLY may be checked with STATUS message
+	panel MUST have the following format
+	  first byte must be 1Bh (i.e. must start with a stream)
+	  first opcode in stream must be E5h
+	    single byte arg of opcode is interpreted thus:
+	      bits 7,6	11 means create new window
+			10 means create new field table for existing window
+			01 means use existing window and field table
+	      bit 5 if set, panel contains a field table
+			(creates a new keyboard and puts it in field mode)
+	      bit 4 if set, panel contains input fields
+	      bit 3 if set, panel contains select fields but no input fields
+	if the panel contains input or select fields, a keyboard handle is
+	  returned; either the window's current open keyboard or a
+	  newly-created keyboard object.  The caller should read that keyboard
+	  to obtain input from the panel.
+SeeAlso: AH=12h/BH=84h
+--------Q-1512--BH05------------------------
+INT 15 - TopView - SEND MESSAGE - "WRITE" - WRITE TO OBJECT
+	AH = 12h
+	BH = 05h
+	BL = object
+	    00h handle is DWORD on top of stack
+		timer: start timer to end at a specified time
+		keyboard: add input buffer to queue
+		pointer: move pointer icon to specified position
+	    02h send message by value/status=0 to mbox (task's handle on stack)
+	    03h send message by value/status=0 to current task's mailbox
+	    04h add input buffer to KEYBOARD queue (handle on top of stack)
+	    05h add input buffer to task's default KEYBOARD queue
+	    06h add an object to OBJECTQ (handle on top of stack)
+	    07h add an object to task's default OBJECTQ
+	STACK: (if mailbox)  DWORD length
+			     DWORD address
+	       (if keyboard) DWORD status (scan code in keystroke mode)
+			     DWORD length (should be 1 in keystroke mode)
+			     DWORD address
+	       (if objectq)  DWORD handle of object to add
+	       (if timer)    DWORD 1/100ths seconds since midnight (actually
+				   only accurate to 1/18 sec)
+	       (if pointer)  DWORD column relative to origin of window
+			     DWORD row relative to origin of window
+Return: STACK popped
+Notes:	under DV 2.2+, failed mailbox writes may return CF set (see AX=DE15h)
+	the data and status written to a keyboard object must match the format
+	  returned by the keyboard object in the current mode
+	the pointer position is scaled according to the current scaling factors
+SeeAlso: AH=12h/BH=04h,AH=12h/BH=85h
+--------Q-1512--BH05-------------------------
+INT 15 - TopView - SEND MESSAGE - "WRITE" - WRITE STRING TO WINDOW
+	AH = 12h
+	BH = 05h
+	BL = window to write to
+	    00h DWORD on top of stack is window handle
+	    01h write string to task's default window
+	    0Ch (DV 2.26+) default window of task owning handle on top of stack
+	    0Dh (DV 2.26+) default window of parent of current task
+	STACK: DWORD object handle if handle passed on stack
+	       DWORD total length of string (high word == 0)
+	       DWORD address of string to display (see #00439)
+Return: indicated actions performed
+	a. non-control characters are displayed (opcodes DEh and DFh control
+	   whether the attributes are left or changed to the current attrib)
+	b. CR/LF/BS/Tab cause the usual cursor movement
+	c. ESC starts a data structure with additional commands if following
+	   byte is less than 20h; otherwise, it is written to the window
+	STACK:	DWORD handle of new window if window stream opcode E6h
+		else nothing (arguments have been popped)
+SeeAlso: AH=12h/BH=04h,AH=12h/BH=85h
+
+Format of stream data structure:
+Offset	Size	Description	(Table 00439)
+ 00h	BYTE	1Bh magic value identifying start of stream
+ 01h	BYTE	stream type (00h, 01h, 10h, 14h-1Fh legal)
+		(see #00440,#00446,#00447,#00448)
+ 02h	WORD	length of remainder of stream in bytes
+	var-length fields follow, each an OPCODE followed by
+	     zero or more args
+
+(Table 00440)
+Values for MODE 00h (set or display values) "WINDOW STREAM" opcodes:
+Opcodes:args
+ 00h  display 20h blanks with the default attribute
+ 01h-1Fh display OPCODE blanks with the default attribute
+ 20h  display char with default attribute 20h times
+	BYTE char to repeat
+ 21h-3Fh display char with default attribute OPCODE-20h times
+	BYTE char to repeat
+ 40h  display 20h blanks with specified attribute
+	BYTE attribute of blanks
+ 41h-5Fh display OPCODE-40h blanks with specified attribute
+	BYTE attribute of blanks
+ 60h  display next 20h characters
+	20h BYTEs characters to display
+ 61h-7Fh display next OPCODE-60h characters
+	N BYTEs characters to display
+ 80h-87h display N blanks with default attribute
+	BYTE low 8 bits of 11-bit count (high 3 in low 3 bits of OPCODE)
+		  [000h means 800h]
+ 88h-8Fh display N copies of the character
+	BYTE low 8 bits of 11-bit count (high 3 in low 3 bits of OPCODE)
+		  [000h means 800h]
+	BYTE character to repeat
+ 90h-97h display N blanks with specified attribute
+	BYTE low 8 bits of 11-bit length (high 3 in low 3 bits of OPCODE)
+		  [000h means 800h]
+	BYTE attribute
+ 98h-9Fh display string at logical cursor pos
+	BYTE low 8 bits of 11-bit length (high 3 in low 3 bits of OPCODE)
+		  [000h means 800h]
+	N BYTEs string to display
+ A0h  set logical cursor row
+	BYTE row number (0 is top)
+ A1h  set logical cursor column
+	BYTE column number (0 is leftmost)
+ A2h  set top edge of scrolling region
+	BYTE row
+ A3h  set left edge of scrolling region
+	BYTE column
+ A4h  set row of physical window position
+	BYTE line
+ A5h  set column of physical window position
+	BYTE column
+ A6h  set height of physical window
+	BYTE number of rows
+ A7h  set width of physical window
+	BYTE number of columns
+ A8h  set viewport row
+	BYTE row
+ A9h  set viewport column
+	BYTE column
+ AAh  set virtual screen height [contents of window unpredictable after]
+	BYTE rows
+ ABh  set virtual screen width [contents of window unpredictable after]
+	BYTE columns
+ ACh-AEh unused
+ AFh  set compatible/preferred video modes
+	BYTE compatibility/preference mask
+		bit 7	compatible with monochrome
+		bit 6	compatible with color text, EGA/VGA graphics
+		bit 5	compatible with medium-resolution CGA graphics
+		bit 4	compatible with high-resolution CGA graphics
+		bit 3	prefer monochrome
+		bit 2	prefer color text, EGA/VGA graphics
+		bit 1	prefer medium-resolution CGA graphics
+		bit 0	prefer high-resolution CGA graphics
+ B0h  move logical cursor down
+	BYTE number of rows (signed, negative values move up)
+		[if rows=0 and hardware cursor owner, update hardware cursor]
+ B1h  move logical cursor right
+	BYTE number of columns (signed, negative values move left)
+		[if cols=0 and hardware cursor owner, update hardware cursor]
+ B2h  shift top edge of scrolling region
+	BYTE number of rows (signed)
+ B3h  shift left edge of scrolling region
+	BYTE number of columns (signed)
+ B4h  shift physical window down
+	BYTE number of lines (signed)
+ B5h  shift physical window right
+	BYTE number of columns (signed)
+ B6h  expand physical window vertically
+	BYTE number of lines (signed)
+ B7h  expand physical window horizontally
+	BYTE number of columns (signed)
+ B8h  adjust viewport row
+	BYTE number of rows (signed)
+ B9h  adjust viewport column
+	BYTE number of columns (signed)
+ BAh  adjust virtual screen height [contents of window unpredict after]
+	BYTE number of rows to increase (signed)
+ BBh  adjust virtual screen width [contents of window unpredictbl after]
+	BYTE number of columns to increase (signed)
+ BCh-BFh reserved (currently unused)
+ C0h  set logical cursor position
+	BYTE row number (0 is top border)
+	BYTE column number (0 is left border)
+ C1h  set top left corner of scrolling region
+	BYTE row
+	BYTE column
+ C2h  set physical window pos
+	BYTE upper left row (no top border if 0)
+	BYTE upper left column (no left border if 0)
+ C3h  set current window size
+	BYTE number of rows
+	BYTE number of columns
+ C4h  set upper left corner of viewport (portion of virtual screen displayed
+	  in window)
+	BYTE row
+	BYTE column
+ C5h  set size of virtual screen [contents unpredictable afterwards]
+	BYTE number of rows
+	BYTE number of columns
+ C6h  unused
+ C7h  unused
+ C8h  set logical cursor relative to current position
+	BYTE number of rows to move down (signed)
+	BYTE number of columns to move right (signed)
+		[if rows=cols=0 and hardware cursor owner, update hardw cursor]
+ C9h  shift top left corner of scrolling region
+	BYTE number of rows (signed)
+	BYTE number of columns (signed)
+ CAh  set window pos relative to current position
+	BYTE number of rows to shift down (signed)
+	BYTE number of columns to shift right (signed)
+ CBh  set window size relative to current size
+	BYTE number of rows to expand (signed)
+	BYTE number of cols to expand (signed)
+ CCh  shift viewport relative to current position
+	BYTE rows to shift (signed)
+	BYTE cols to shift (signed)
+ CDh  resize virtual screen
+	BYTE number of rows to expand (signed)
+	BYTE number of columns to expand (signed)
+ CEh  scroll text when using E8h-EBh/F8h-FBh opcodes (default)
+ CFh  scroll attributes when using  E8h-EBh/F8h-FBh opcodes
+ D0h  allow window frame to extend beyond screen
+ D1h  always display a complete frame, even if window extends beyond edge of
+	  screen
+ D2h  allow DV to change logical colors on video mode switch (default)
+ D3h  application changes logical attributes
+ D4h  window is visible [must redraw to actually make visible]
+ D5h  window is hidden [must redraw to actually remove]
+ D6h  window has frame (default)
+ D7h  window unframed [must redraw to actually remove frame]
+ D8h  READ/READN will read characters from window (default)
+ D9h  READ/READN will read attributes from window
+ DAh  use logical attributes, which may be remapped (see #00441)
+ DBh  use physical attributes for characters
+ DCh  enable special actions for control characters (default)
+ DDh  disable special control char handling, all chars displayable by BIOS TTY
+	  call
+ DEh  write both character and attribute (default)
+ DFh  write character only, leave attribute untouched
+ E0h  repeat following commands through E1h opcode
+	BYTE number of times to repeat (00h means 256 times)
+ E1h  end of commands to repeat, start repeating them
+ E2h  set current output color
+	BYTE color
+ E3h  clear virtual screen from scroll origin to end using current color
+ E4h  redraw window
+ E5h  select menu style
+	BYTE style (normally 18h)
+		bits 5,4 = 01 use two-letter menu entries for remainder of
+		  this stream
+ E5h  (panel file only)
+	BYTE modifier
+		bits 7,6 = 11 panel stream creates new window
+			 = 10 panel defines new field table for existing window
+			 = 01 panel stream uses existing window & field table
+		bit 5 = 1 stream contains a field table (create kyboard object)
+		bit 4 = 1 stream defines input fields (create keyboard object)
+		bit 3 = 1 stream defines select fields but not input fields
+		bit 2 = 1 stream defines exclusive input window (DV 2.2)
+		bit 1 reserved
+		bit 0 reserved
+ E6h  create new window and perform rest of manipulations in new window
+	BYTE number of rows
+	BYTE number of columns
+	Return: DWORD object handle of new window returned on stack at end
+	Note:	the window is created with a physical size of 0x0 at the
+		  same position as the window to which this stream was sent
+ E7h  no operation
+ E8h  scroll area up (top left corner defined by opcode C1h)
+	BYTE height
+	BYTE width
+ E9h  scroll area down (top left corner defined by opcode C1h)
+	BYTE height
+	BYTE width
+ EAh  scroll area left (top left corner defined by opcode C1h)
+	BYTE height
+	BYTE width
+ EBh  scroll area right (top left corner defined by opcode C1h)
+	BYTE height
+	BYTE width
+ ECh  set logical attributes for window contents
+	BYTE video modes command applies to
+		bit 7	monochrome
+		bit 6	color text, EGA/VGA graphics
+		bit 5	medium-resolution CGA graphics
+		bit 4	high-resolution CGA graphics
+	BYTE which attributes to set
+		bit 7	if set, copy single following byte to indicated attribs
+		bits 4-6  number of first attribute to change - 1
+		bits 0-3  number of consecutive attributes to change
+	N BYTEs new attributes
+ EDh  set logical attributes for window frame
+	BYTE video modes command applies to (also see opcode ECh)
+	BYTE which attributes to set
+		bit 7	if set, copy single following byte to indicated attrs
+		bits 4-6  number of first attribute to change - 1
+		bits 0-3  number of consecutive attributes to change
+	N BYTEs new attributes
+		  attributes
+		       1 = top left corner
+		       2 = top right corner
+		       3 = bottom left corner
+		       4 = bottom right corner
+		       5 = top edge
+		       6 = bottom edge
+		       7 = left edge
+		       8 = right edge
+ EEh  set characters for window frame
+	BYTE video modes command applies to (also see opcode ECh)
+	BYTE which characters to set
+		bit 7	if set, copy single following byte to indicated chars
+		bits 4-6  number of first character to change - 1
+		bits 0-3  number of consecutive characters to change
+	N BYTEs new chars (same relative position as attributes above)
+ EFh  set window name
+	BYTE length of name (should be in range 0 to logical screen width)
+	N BYTEs name
+ F0h  clear input field to blanks
+	BYTE field number
+ F1h  fill input field with character
+	BYTE field number
+	BYTE char
+ F2h  set color of input field
+	BYTE field number (1-N)
+	BYTE attribute
+ F3h  set initial contents of input field
+	BYTE field number (1-N)
+	N BYTEs enough chars to exactly fill field as defined by op FFh
+ F4h  position cursor to start of specific input field
+	BYTE field number (1-N)
+ F5h  change field table entry
+	BYTE field number
+	7-8 BYTEs field table entry (also see opcode FFh below)
+ F6h  set field type
+	BYTE field number
+	BYTE type
+		00h inactive
+		40h output field
+		80h input field
+		C0h deselected field
+		C2h selected field
+ F7h  "broadcast write"	write data to fields with program output bit set in
+	  the field table entry, in field number order
+	N BYTEs (total length of all program output fields)
+ F8h  scroll field up a line
+	BYTE field number
+ F9h  scroll field down a line
+	BYTE field number
+ FAh  scroll field left
+	BYTE field number
+ FBh  scroll field right
+	BYTE field number
+ FCh  set field table header
+	6 BYTEs	field table header (see #00442)
+ FDh  reset modified bit for all fields
+ FEh  reset selected and modified bits for all fields
+ FFh  set up input fields
+	6 BYTEs	table header (see #00442)
+	7/8N BYTEs the field table entries, one for each field (see #00444)
+	Note:	DESQview uses and updates the actual copy of the information
+		  which is contained in the stream.  Thus this info must remain
+		  intact until after the data entry is complete.
+SeeAlso: #00439,#00446
+
+(Table 00441)
+Values for TopView logical attributes:
+ 01h	normal text
+ 02h	highlighted normal text
+ 03h	help text
+ 04h	highlighted help text
+ 05h	error message
+ 06h	highlighted error message
+ 07h	emphasized text
+ 08h	marked text
+ 9-16	reverse video versions of 1-8
+SeeAlso: #00440
+
+Format of TopView field table header:
+Offset	Size	Description	(Table 00442)
+ 00h	BYTE	number of fields (must be <= existing number of fields)
+ 01h	BYTE	screen behavior bits (see #00443)
+ 02h	BYTE	current input field (updated by DESQview)
+ 03h	BYTE	current select field (updated by DESQview)
+ 04h	BYTE	attribute for select fields when they are pointed at
+ 05h	BYTE	attribute for select fields which have been selected
+SeeAlso: #00440,#00444
+
+Bitfields for TopView screen behavior bits:
+Bit(s)	Description	(Table 00443)
+ 7	reserved
+ 6	menu items may be selected via keyboard
+ 5	left mouse button in "status" mode (press anywhere in window
+	  immediately returns control to application)
+ 4	right mouse button in "status" mode
+ 3	select fields return contents or blanks rather than 'Y' or 'N'
+ 2	modified bits reset on return to application
+ 1-0	type of data returned
+	00 no data returned on read of keyboard
+	01 data returned as array of characters containing all fields packed
+	      together, with no field numbers
+	10 data returned as numbered variable-length records for all fields
+	11 data returned as numbered variable-length records for the fields
+	      which were modified
+SeeAlso: #00440
+
+Format of TopView field table entry:
+Offset	Size	Description	(Table 00444)
+ 00h	BYTE	start row    \
+ 01h	BYTE	start column  \ if menu selection and start is to
+ 02h	BYTE	end row	      / right or below end, select from kbd only
+ 03h	BYTE	end column   /
+ 04h	BYTE	field type (see #00445)
+ 05h	BYTE	modifier
+		if type is fill-in, then bit flags to determine behavior
+		  bit 7	 automatically enter CR when field full
+		  bit 6	 move to next field when current field is full
+		  bit 5	 enter text from right end (for numbers)
+		  bit 4	 force input to uppercase
+		  bit 3	 clear old contents on first keystroke
+		  bit 2	 input returned when cursor moves out of
+			  modified field ("validate", API level 2.02+)
+		  bit 1	 reserved
+		  bit 0	 reserved
+		if select field, first key to press to activate
+		  00h if have to point-&-click or is an extended-ASCII
+		      keystroke (only if two-key menus enabled)
+ 06h	BYTE	(select field only) normal color of field
+ 07h	BYTE	second key for select field.  This byte is present iff
+		  two-letter menu entries selected with opcode E5h, and in that
+		  case is present regardless of field type
+SeeAlso: #00442
+
+Bitfields for TopView field type:
+Bit(s)	Description	(Table 00445)
+ 7,6	field class
+	00 inactive (non-entry) field
+	01 echos keystrokes input to make menu selection
+	10 fill-in field
+	11 select field
+ 5	field can be filled by broadcast write (F7h opcode)
+ 4	reserved
+ 3	reserved
+ 2	reserved
+ 1	set if field selected
+ 0	set if field modified
+SeeAlso: #00444
+
+(Table 00446)
+Values for MODE 01h "QUERY STREAM" opcodes:
+(valid only for those opcodes listed here)
+ A0h return logical cursor row in next byte
+ A1h return logical cursor column in next byte
+ A2h return top row of scrolling region in next byte
+ A3h return left column of scrolling region in next byte
+ A4h return row of physical window origin in next byte
+ A5h return column of physical window origin in next byte
+ A6h return height of physcial window in next byte
+ A7h return width of physical window in next byte
+ A8h return row of viewport origin in next byte
+ A9h return column of viewport origin in next byte
+ AAh return height of virtual screen in next byte
+ ABh return width of virtual screen in next byte
+ AFh return current video mode in next byte
+ C0h return current logical cursor position in next two bytes
+ C1h return top left corner of scrolling region in next two bytes
+ C2h return current window position in next two bytes
+ C3h return current window size in next two bytes
+ C4h return current viewport origin in next two bytes
+ C5h return current virtual screen size in next two bytes
+ D0h \ overwritten with D0h if frames may fall off screen edge
+ D1h /		       D1h if frames always displayed entirely
+ D2h \ overwritten with D2h if DESQview controls color palette
+ D3h /		       D3h if application changes color palette
+ D4h \ overwritten with D4h if window visible
+ D5h /		       D5h if window hidden
+ D6h \ overwritten with D6h if window has frame
+ D7h /		       D7h if window unframed
+ D8h \ overwritten with D8h if reading characters from window
+ D9h /		       D9h if reading attributes from window
+ DAh \ overwritten with DAh if using logical attributes
+ DBh /		       DBh if using physical attributes
+ DCh \ overwritten with DCh if TTY control char interpretation on
+ DDh /		       DDh if TTY control char interpretation off
+ DEh \ overwritten with DEh if writing both characters and attributes
+ DFh /		       DFh if leaving attributes untouched
+ E2h return current color in next byte
+ ECh get logical attributes for window contents
+	BYTE execute call if currently in specified video mode
+		bit 7	monochrome
+		bit 6	color text, EGA/VGA graphics
+		bit 5	medium-resolution CGA graphics
+		bit 4	high-resolution CGA graphics
+	BYTE which attributes to get
+		bit 7	unused???
+		bits 4-6 first attribute to get - 1
+		bits 0-3 number of consecutive attributes
+	N BYTEs buffer to hold attributes
+ EDh get logical attributes for window frame
+	BYTE execute call if currently in video mode (also see opcode ECh)
+	BYTE which attributes to get
+		bit 7	unused???
+		bits 4-6 first attribute to get - 1
+		bits 0-3 number of consecutive attributes
+	N BYTEs buffer to hold attributes
+ EEh get characters for window frame
+	BYTE execute call if currently in video mode (also see opcode ECh)
+	BYTE which attributes to get
+		bit 7	unused???
+		bits 4-6 first char to get - 1
+		bits 0-3 number of consecutive chars
+	N BYTEs buffer to hold chars
+ EFh return first N characters of current window name
+	BYTE	max length of returned name
+	N BYTEs buffer to hold window name
+ F3h return contents of specified field
+	BYTE field number
+	N BYTEs buffer to hold field contents (size equal to field size)
+ F5h get field table entry
+	BYTE field number
+	7-8 BYTEs buffer to hold field table entry (see #00444)
+	Notes:	DV < 2.26 always returns 7 bytes
+		DV 2.26+ w/ APILEVEL < 2.26 returns 8 bytes iff field table
+		  is using 8-byte entries and eighth byte after	F5h is E7h
+		  (NOP); otherwise, 7 bytes are returned
+		DV 2.26+ w/ APILEVEL > 2.26 returns 7 or 8 bytes depending
+		  on the field table entry size
+ F6h get type of a field
+	BYTE field number
+	BYTE type
+ FCh get field table header
+	6 BYTEs buffer to store field table header (see #00442)
+SeeAlso: #00439,#00447
+
+(Table 00447)
+Values for MODE 10h "MANAGER STREAM" opcodes (valid only for those listed):
+ 00h allow window to be moved horizontally
+ 01h allow window to be moved vertically
+ 02h allow window to change width
+ 03h allow window to change height
+ 04h allow window to be scrolled horizontally
+ 05h allow window to be scrolled vertically
+ 06h allow "Close Window" menu selection for application
+ 07h allow "Hide Window" menu selection for application
+ 08h allow application to be suspended ("Rearrange/Freeze")
+ 0Eh allow "Scissors" menu
+ 10h allow DESQview main menu to be popped up
+ 11h allow "Switch Windows" menu
+ 12h allow "Open Window" menu
+ 13h allow "Quit" menu selection
+ 20h-33h opposite of 00h-13h, disallow specified action
+ 40h notify if horizontal position of window changes
+ 41h notify if vertical position of window changes
+ 42h notify if width of window changes
+ 43h notify if height of window changes
+ 44h notify if window scrolled horizontally
+ 45h notify if window scrolled vertically
+ 46h notify if window is closed--program has to clean up and exit itself
+ 47h notify if window is hidden
+ 48h notify if "?" on main menu selected
+ 49h notify if pointer message sent to window
+ 4Ah notify if window is placed in foreground
+ 4Bh notify if window is placed in background
+ 4Ch notify if video mode changes
+ 4Dh notify if "Scissors" menu "Cut" option selected
+ 4Eh notify if "Scissors" menu "Copy" option selected
+ 4Fh notify if "Scissors" menu "Paste" option selected
+ 50h notify if DESQview main menu about to pop up
+ 51h notify if DESQview main menu popped down
+ 60h-71h	 opposite of 40h-51h: don't notify on specified event
+ 84h attach window to parent task's window (both move together)
+ 85h detach window from parent task's window (may move independently)
+ 86h disable background operation for application
+ 87h enable running in background
+ 88h set minimum size of physical window
+	BYTE rows
+	BYTE columns
+ 89h set maximum size of physical window
+	BYTE rows
+	BYTE cols
+ 8Ah set primary asynchronous notification routine (see #00449)
+	DWORD address of routine, 0000h:0000h means none (see also below)
+ 8Bh set async notification parameter
+	DWORD 32-bit value passed to 8Ah async routine in DS:SI
+ ACh (DV2.2+) perform regular select field attribute processing
+ ADh (DV2.2+) protect attributes in selected field from being lost
+ AEh make window default notify window for owning app (API level 2.00+)
+ AFh set selected field marker character
+	BYTE character to display at left edge of selected fields
+ BCh set standard field processing mode
+ BDh set alternate field processing mode (enables cursor pad for menus)
+ BEh disables changing reverse logical attributes with ECh opcode
+ BFh enables changing reverse logical attributes with ECh opcode
+ C0h make current window topmost in system
+ C1h force current process into foreground
+ C2h make current window topmost in process
+ C3h position mouse pointer relative to origin of current field
+	BYTE rows below upper left corner of field
+	BYTE columns to right of upper left corner of field
+ C4h position mouse pointer relative to origin of given field
+	BYTE field number
+	BYTE rows below upper left corner of field
+	BYTE columns to right of upper left corner of field
+ C5h orphan current window (also hides it)
+	Note: must be last in stream; all subsequent commands ignored
+ C6h show all windows for this process
+ C7h hide all windows for this process
+ C8h suspend process and hide all its windows
+ C9h force current process into background
+ CAh make current window bottom-most in process
+ CBh cancel current window manager operation, remove DV menu, give control
+	  to topmost application
+ CCh orphan window and give it to the system for use as paste data
+ CEh reorder windows
+	DWORD pointer to null-terminated list of words; each word is segment
+		  of object handle for a window
+ FFh no operation
+SeeAlso: #00439,#00446,#00448
+
+(Table 00448)
+Values for MODES 14h to 1Fh "USER STREAMS":
+	normally NOPs, but may be defined by SETESC message to invoke FAR
+	routines, one for each mode number
+	  on entry to handler,
+		DS:SI -> first byte of actual stream (not header)
+		CX = number of bytes in stream
+		ES:DI = window's handle
+SeeAlso: #00446,#00447
+
+(Table 00449)
+Values asynchronous notification routine defined by man.stream 8Ah called with:
+	ES:DI = handle of window
+	DS:SI is 32-bit value set by 8Bh manager stream opcode
+	   mailbox contains message indicating event
+	      Opcode
+	       40h  horizontal movement
+		   DWORD object handle of window
+		   BYTE	 new row
+		   BYTE	 new col
+	       41h  vertical movement
+		   DWORD object handle of window
+		   BYTE	 new row
+		   BYTE	 new col
+	       42h  horizontal size change
+		   DWORD object handle of window
+		   BYTE	 new rows
+		   BYTE	 new cols
+	       43h  vertical size change
+		   DWORD object handle of window
+		   BYTE	 new rows
+		   BYTE	 new cols
+	       44h  scrolled horizontally
+		   DWORD object handle of window
+		   BYTE	 mouse row within window
+		   BYTE	 mouse column within window
+		   BYTE	 field mouse is on, 0 if none
+		   BYTE	 amount moved: >0 right, <0 left, 0 done
+	       45h  scrolled vertically
+		   DWORD object hande of window
+		   BYTE	 mouse row within window
+		   BYTE	 mouse column within window
+		   BYTE	 field mouse is on, 0 if none
+		   BYTE	 amount moved: >0 down, <0 up, 0 done
+	       46h  window close request
+		   DWORD object handle of window
+		   BYTE	 mouse pointer row
+		   BYTE	 mouse pointer column
+		   BYTE	 field mouse is on, 0 if none
+	       47h  application's windows hidden
+	       48h  Help for Program selected
+		   DWORD object handle of window
+		   BYTE	 mouse pointer row
+		   BYTE	 mouse pointer column
+		   BYTE	 field mouse is on, 0 if none
+	       49h  pointer message sent to window
+		   DWORD pointer handle which received message
+	       4Ah  switched to window from another ("raise")
+	       4Bh  switched away from the window ("lower")
+	       4Ch  video mode changed
+		   BYTE new BIOS video mode
+	       4Dh  Scissors/cUt selected
+		   DWORD object handle of window
+		   BYTE	 row of upper left corner
+		   BYTE	 column of upper left corner
+		   BYTE	 field number ul corner is in, 0=none
+		   DWORD handle of orphaned window created with
+			 copy of data from specified region
+		   BYTE	 height of region
+		   BYTE	 width of region
+	       4Eh  Scissors/Copy selected
+		   DWORD object handle of window
+		   BYTE	 row of upper left corner
+		   BYTE	 column of upper left corner
+		   BYTE	 field number ul corner is in, 0=none
+		   DWORD handle of orphaned window created with
+			 copy of data from specified region
+		   BYTE	 height of region
+		   BYTE	 width of region
+	       4Fh  Scissors/Paste selected
+		   DWORD object handle of window
+		   BYTE	 row of upper left corner
+		   BYTE	 column of upper left corner
+		   BYTE	 field number ul corner is in, 0=none
+		   DWORD handle of orphaned window with data
+		   BYTE	 height of region
+		   BYTE	 width of region
+			Note: orphaned data window should be adopted or freed
+				when done
+	       50h  main menu about to pop up
+	       51h  main menu popped down
+Return: all registers unchanged
+--------Q-1512--BH06-------------------------
+INT 15 - DESQview 2.20+ - SEND MESSAGE - "SETPRI" - SET PRIORITY WITHIN OBJECTQ
+	AH = 12h
+	BH = 06h
+	BL = object
+	    00h object handle in DWORD on top of stack
+		mailbox, keyboard, pointer, or timer
+		(DV 2.50+) window
+	    01h (DV 2.50+) current task's window
+	    04h given task's keyboard (task's handle on top of stack)
+	    05h current task's default keyboard
+	STACK: DWORD new priority of object in task's OBJECTQ
+			(new priority of task if window handle)
+Return: STACK popped
+Notes:	initially all objects have the same default value.  Should only make
+	  relative adjustments to this default value.
+	when changing priorities, all objects already on the objectq are
+	  reordered
+	for window handles, only the non-blocked task(s) with the highest
+	  priority receive CPU time under DESQview 2.50-2.52; the default
+	  priority is 0Ah
+SeeAlso: AH=12h/BH=07h,AH=12h/BH=87h
+--------Q-1512--BH07-------------------------
+INT 15 - DESQview 2.20+ - SEND MESSAGE - "GETPRI" - GET PRIORITY WITHIN OBJECTQ
+	AH = 12h
+	BH = 07h
+	BL = object
+	    00h object handle in DWORD on top of stack
+		mailbox, keyboard, pointer, or timer
+		(DV 2.50+) window
+	    01h (DV 2.50+) current task's window
+	    04h given task's keyboard (task's handle on top of stack)
+	    05h current task's default keyboard
+Return: STACK: DWORD object priority
+Note:	initially all objects have the same default value.  Should only make
+	  relative adjustments to this default value.
+SeeAlso: AH=12h/BH=06h
+--------Q-1512--BH08-------------------------
+INT 15 - TopView - SEND MESSAGE - "SIZEOF" - GET OBJECT SIZE
+	AH = 12h
+	BH = 08h
+	BL = object
+	    00h handle in DWORD on top of stack
+		window: total character positions in window
+		timer: elapsed time since timer started
+		pointer: number of messages queued to pointer object
+		panel: number of panels in panel file
+		keyboard: number of input buffers queued
+	    01h total chars in current task's default window
+	    02h number of messages in task's mailbox (task's handle on stack)
+	    03h number of messages in current task's mailbox
+	    04h number of input buffers queued in task's kbd (handle on stack)
+	    05h number of input buffers queued for current task's default kbd
+	    06h number of objects queued in OBJECTQ (task's handle on stack)
+	    07h number of objects queued in current task's OBJECTQ
+	    0Ch (DV 2.26+) total chars in window owning handle on top of stack
+	    0Dh (DV 2.26+) total chars in parent task's window
+Return: DWORD on top of stack is result (any handle on stack has been popped)
+Note:	for panel objects, a count of zero is returned if no panel file is open
+	  for the object
+SeeAlso: AH=12h/BH=04h,AH=12h/BH=09h
+--------Q-1512--BH09-------------------------
+INT 15 - TopView - SEND MESSAGE - "LEN" - GET OBJECT LENGTH
+	AH = 12h
+	BH = 09h
+	BL = object
+	    00h handle in DWORD on top of stack
+		window: get chars/line
+		timer: get 1/100 seconds remaining before timer expires
+		mailbox: (DV/X) get number of bytes queued to mailbox
+	    01h get number of chars/line in current task's default window
+	    0Ch (DV 2.26+) get chars/line in window owning handle on top of stk
+	    0Dh (DV 2.26+) get chars/line in parent task's window
+Return: DWORD on top of stack is length (any handle on stack has been popped)
+SeeAlso: AH=12h/BH=08h
+--------Q-1512--BH0A-------------------------
+INT 15 - TopView - SEND MESSAGE - "ADDTO" - WRITE CHARS AND ATTRIBS TO WINDOW
+	AH = 12h
+	BH = 0Ah
+	BL = window to write to
+	    00h window handle is DWORD on top of stack
+	    01h current task's default window
+	    0Ch (DV 2.26+) default window of task owning handle on top of stack
+	    0Dh (DV 2.26+) default window of parent of current task
+	STACK:	DWORD count of attributes
+		DWORD address of attribute string
+		DWORD count of characters
+		DWORD address of character string
+Return: STACK popped
+Notes:	if one string is longer than the other, the shorter one will be reused
+	  until the longer one is exhausted
+	the cursor is left just after the last character written
+SeeAlso: AH=12h/BH=0Bh"WINDOW"
+--------Q-1512--BH0A-------------------------
+INT 15 - TopView - SEND MESSAGE - "ADDTO" - SEND MAILBOX MESSAGE/STAT BY VALUE
+	AH = 12h
+	BH = 0Ah
+	BL = mailbox to write to
+	    00h handle is DWORD on top of stack
+	    02h default mailbox of task whose handle is on top of stack
+	    03h current task's default mailbox
+	STACK:	DWORD	status (low byte)
+		DWORD	length of message
+		DWORD	address of message
+Return: STACK popped
+Notes:	the message is copied into either system or common memory
+	insufficient memory normally causes the process to be aborted; under
+	  DESQview 2.2+, failed writes may return CF set instead (see AX=DE15h)
+SeeAlso: AH=12h/BH=0Bh"MAILBOX"
+--------Q-1512--BH0A-------------------------
+INT 15 - TopView - SEND MESSAGE - "ADDTO" - SET OBJECT BITS
+	AH = 12h
+	BH = 0Ah
+	BL = object
+	    00h handle is DWORD on top of stack
+		timer: start timer for specified interval
+		pointer: set control flags (see #00451)
+		keyboard: set control flags (see #00450)
+	    04h set control flags on KEYBOARD object (handle on top of stack)
+	    05h set control flags on task's default KEYBOARD object
+	STACK: (if timer)   DWORD duration in 1/100 seconds
+	       (otherwise)  DWORD bits to set
+Return: STACK popped
+SeeAlso: AH=12h/BH=0Bh"OBJECT"
+
+Bitfields for DESQview keyboard object bits:
+Bit(s)	Description	(Table 00450)
+ 15	reserved, can't be set
+ 14	unused
+ 13	reserved, can't be set
+ 12-6	unused
+ 5	(DV 2.2+) exclusive input
+ 4	filter all keys (used with handler established by SETESC)
+	if 0, only keys that would normally be displayed are filtered
+ 3	program continues executing while input in progress
+ 2	insert mode active for field mode
+ 1	hardware cursor displayed when task is hardware cursor owner
+	must be set if keyboard in field mode and field table includes input
+	  fields
+ 0	keyboard is in field mode rather than keystroke mode
+
+Bitfields for DESQview pointer object bits:
+Bit(s)	Description	(Table 00451)
+ 15	reserved, can't be set
+ 14-8	unused
+ 7	mouse pointer is hidden while in window
+ 6	get messages even if window not topmost
+ 5	get messages even if window not foreground
+ 4	multiple clicks separated by less than 1/3 second are counted and
+	  returned in a single message
+ 3	pointer position is relative to screen origin, not window origin
+ 2	send message on button release as well as button press
+ 1	(DV 2.23+) send message with row=FFFFh and col=FFFFh whenever the
+	  pointer leaves the window
+ 0	send message only on button activity, not movement
+	DV-specific, and INT 15/AX=DE0Fh must have been called first
+--------Q-1512--BH0B-------------------------
+INT 15 - TopView - SEND MESSAGE - "SUBFROM" - WRITE ATTRIBUTES TO WINDOW
+	AH = 12h
+	BH = 0Bh
+	BL = window to write attributes to
+	    00h handle is DWORD on top of stack
+	    01h current task's default window
+	    0Ch (DV 2.26+) default window of task owning handle on top of stack
+	    0Dh (DV 2.26+) default window of parent of current task
+	STACK:	DWORD number of attributes to write
+		DWORD address of attributes
+Return: STACK popped
+Note:	the attributes are written starting at the current cursor position; the
+	  cursor is left just after the last position written
+SeeAlso: AH=12h/BH=0Ah"WINDOW"
+--------Q-1512--BH0B-------------------------
+INT 15 - TopView - SEND MESSAGE - "SUBFROM" - SEND MAILBOX MESSAGE/STAT BY REF
+	AH = 12h
+	BH = 0Bh
+	BL = mailbox to write to
+	    00h handle is DWORD on top of stack
+	    02h default mailbox of task whose handle is on top of stack
+	    03h current task's default mailbox
+	STACK:	DWORD	status (low byte)
+		DWORD	length of message
+		DWORD	address of message
+Return: STACK popped
+Notes:	only a pointer to the message is stored, but the write may still fail
+	  due to insufficient memory
+	under DV 2.2+, failed mailbox writes may return CF set (see AX=DE15h)
+SeeAlso: AH=12h/BH=0Ah"MAILBOX"
+--------Q-1512--BH0B-------------------------
+INT 15 - TopView - SEND MESSAGE - "SUBFROM" - REMOVE OBJECT FROM OBJECTQ
+	AH = 12h
+	BH = 0Bh
+	BL = OBJECTQ from which to remove all copies of a particular object
+	    06h OBJECTQ of task whose handle is on top of stack
+	    07h task's default OBJECTQ
+	STACK:	DWORD	handle of object to remove
+Return: STACK popped
+Note:	should be sent whenever an object is erased or closed
+--------Q-1512--BH0B-------------------------
+INT 15 - TopView - SEND MESSAGE - "SUBFROM" - RESET OBJECT BITS
+	AH = 12h
+	BH = 0Bh
+	BL = object
+	    00h handle is DWORD on top of stack
+		pointer: reset control flags
+		keyboard: reset control flags
+	    04h clear control flags on KEYBOARD object (handle on top of stack)
+	    05h clear control flags on task's default KEYBOARD object
+	STACK:	DWORD	which bits to clear (see #00450,#00451)
+Return: STACK popped
+SeeAlso: AH=12h/BH=0Ah"OBJECT"
+--------Q-1512--BH0C-------------------------
+INT 15 - TopView - SEND MESSAGE - "OPEN" - OPEN OBJECT
+	AH = 12h
+	BH = 0Ch
+	BL = object
+	    00h handle is DWORD on top of stack
+		window:	  fill with given character from scroll origin to end
+		keyboard: attach to a window
+		timer:	  open
+		pointer:  start taking input for window
+		panel:	  associate with a panel file
+	    01h fill task's default window with given char from scrl org to end
+	    02h open given task's mailbox for input (task's handle on stack)
+	    03h open current task's mailbox
+	    04h attach a KEYBOARD to a window (handle on top of stack)
+	    05h attach task's default KEYBOARD to a window
+	    06h open a task's OBJECTQ (task's handle on top of stack)
+	    07h open current task's OBJECTQ
+	    0Ch (DV 2.26+) fill def window of task owning handle on top of stck
+	    0Dh (DV 2.26+) fill default window of parent of current task
+	 STACK: (if window)   DWORD character to fill with
+		(if keyboard) DWORD handle of window to attach to
+		(if pointer)  DWORD handle of window to attach to
+		(if panel)    DWORD length of filename or resident panel
+			      DWORD address of filename or resident panel
+		(otherwise)   nothing
+Return: STACK popped
+Notes:	if first byte of panel file name is 1Bh, then the "name" IS a panel
+	if first two bytes of panel file "name" are C0hC3h, then the "name" IS
+	  the panel file
+	result code of open may be retrieved with STATUS message
+	logical cursor is left at scroll origin after filling window
+	the task opening a mailbox becomes its owner, and the only task allowed
+	  to read the mailbox
+	messages are only sent to a pointer object when the mouse is positioned
+	  in the window to which the pointer has been attached
+	there is no need to explicitly open a timer object, as ADDTO and WRITE
+	  messages automatically open the timer
+SeeAlso: AH=12h/BH=0Dh,AH=12h/BH=14h"LOCK"
+--------Q-1512--BH0D-------------------------
+INT 15 - TopView - SEND MESSAGE - "CLOSE" - CLOSE OBJECT
+	AH = 12h
+	BH = 0Dh
+	BL = object
+	    00h handle is DWORD on top of stack
+		timer:	  close
+		keyboard: detach from window and discard queued input
+		pointer:  stop taking input
+		panel:	  close
+		mailbox:  close, unlock, and discard any pending messages
+	    02h close given task's mailbox (task's handle on top of stack)
+	    03h close task's default mailbox
+	    04h close KEYBOARD object (handle on top of stack)
+	    05h close task's default KEYBOARD
+	    06h close given task's OBJECTQ (task's handle on top of stack)
+	    07h close current task's OBJECTQ
+Return: STACK popped if handle passed on stack
+Notes:	when an OBJECTQ is closed, each object in the OBJECTQ is sent an
+	  ERASE message (AH=12h/BH=0Eh)
+	when a panel object is closed, the panel file and any panels currently
+	  in use are freed; window and keyboard objects created by APPLY are
+	  not affected, but field mode input ceases
+	open but idle timer objects consume a small amount of CPU time
+SeeAlso: AH=12h/BH=0Ch,AH=12h/BH=0Eh,AH=12h/BH=14h"LOCK"
+--------Q-1512--BH0E-------------------------
+INT 15 - TopView - SEND MESSAGE - "ERASE" - ERASE OBJECT
+	AH = 12h
+	BH = 0Eh
+	BL = object
+	    00h handle is DWORD on top of stack
+		window:	  clear from scroll origin to end of window
+		keyboard: discard input
+		timer:	  cancel current interval
+		pointer:  discard all pending messages
+		mailbox:  discard all pending messages
+	    01h clear task's default window from scroll origin to end
+	    02h discard all queued messages in mailbox (handle on top of stack)
+	    03h discard all queued messages in current task's default mailbox
+	    04h discard all input queued to KEYBOARD (handle on top of stack)
+	    05h discard all input queued to task's default KEYBOARD
+	    06h remove all objects from OBJECTQ (task's handle on top of stack)
+	    07h remove all objects from current task's OBJECTQ
+	    0Ch (DV 2.26+) clear window of task owning handle on top of stack
+	    0Dh (DV 2.26+) clear default window of parent of current task
+Return: STACK popped if handle passed on stack
+Note:	when an OBJECTQ is erased, each object in the OBJECTQ is also erased
+SeeAlso: AH=12h/BH=02h
+--------Q-1512--BH0F-------------------------
+INT 15 - TopView - SEND MESSAGE - "STATUS" - GET OBJECT STATUS
+	AH = 12h
+	BH = 0Fh
+	BL = object
+	    00h handle is DWORD on top of stack
+		timer:	 is it running?
+		pointer: return status of last message
+		panel:	 verify success of last OPEN or APPLY
+	    02h return status of last msg READ from mailbox (handle on stack)
+	    03h return status of last msg READ from task's default mailbox
+	    04h get stat of last msg from task's KEYBOARD (task handle on stk)
+	    05h get status of last msg from task's default KEYBOARD
+	    06h return whether OBJECTQ is open or not (handle on top of stack)
+	    07h return whether task's default OBJECTQ is open or not
+Return: DWORD on top of stack is status (any handle passed on stack popped)
+Notes:	if object is a panel object, the status indicates the error code:
+	  00h successful
+	  14h panel name not in panel directory
+	  15h not enough memory to apply panel
+	  16h invalid panel format
+	  17h panel file already open
+	  81h-92h  DOS error codes+80h			\  codes > 80h indicate
+	  95h not enough memory to open panel file	 > that the panel was
+	  98h null panel file name			/  not opened
+	if object is a timer, the status is:
+	  00000000h open but not running
+	  40000000h open and running
+	  80000000h closed
+	if object is an OBJECTQ, the status is:
+	  00000000h open
+	  80000000h closed
+	if object is a keyboard in keystroke mode, the status is the extended
+	  character code (scan code) of the last keystroke
+	if object is a keyboard in field mode, the status indicates the reason
+	  for the last return from the field manager
+	  00h Enter key pressed
+	  01h Button 1 or keystroke selection
+	  02h Button 2
+	  03h validation
+	  04h auto Enter on field
+	  1Bh Escape pressed
+	  46h ^Break pressed
+	  other: extended code for key terminating input
+	the status of mailbox messages sent by the window manager is always 80h
+	the status of a pointer message is the same as the status field in the
+	  message
+SeeAlso: AH=12h/BH=04h"READ"
+--------Q-1512--BH10-------------------------
+INT 15 - TopView - SEND MESSAGE - "EOF" - GET OBJECT EOF STATUS
+	AH = 12h
+	BH = 10h
+	BL = object
+	    00h handle is DWORD on top of stack
+		window: return TRUE if logical cursor past end of window
+		mailbox: ???
+	    01h returns TRUE if logical cursor past end of task's def window
+	    02h return ??? for task's mailbox (task's handle on top of stack)
+	    03h return ??? for current task's mailbox
+	    0Ch (DV 2.26+) check log crsr of window owning handle on top of stk
+	    0Dh (DV 2.26+) check log cursor of window of parent task
+Return: DWORD on top of stack is status (any handle on stack has been popped)
+--------Q-1512--BH11-------------------------
+INT 15 - TopView - SEND MESSAGE - "AT" - POSITION OBJECT CURSOR
+	AH = 12h
+	BH = 11h
+	BL = window for which to move cursor
+	    00h window's handle is DWORD on top of stack
+	    01h task's default window
+	    0Ch (DV 2.26+) default window of task owning handle on top of stack
+	    0Dh (DV 2.26+) default window of parent of current task
+	STACK: DWORD column
+	       DWORD row
+Return: STACK popped
+--------Q-1512--BH11-------------------------
+INT 15 - TopView - SEND MESSAGE - "SETNAME" - ASSIGN NAME TO MAILBOX
+	AH = 12h
+	BH = 11h
+	BL = mailbox to name
+	    00h DWORD on top of stack is mailbox handle
+	    02h use given task's mailbox (task's handle on top of stack)
+	    03h use current task's default mailbox
+	STACK: DWORD length of name
+	       DWORD address of name
+Return: STACK popped
+SeeAlso: AH=12h/BH=12h"GETNAME",AX=DE0Eh
+--------Q-1512--BX1100-----------------------
+INT 15 - TopView - SEND MESSAGE - "SETSCALE" - SET POINTER SCALE FACTOR
+	AH = 12h
+	BX = 1100h
+	STACK: DWORD object handle for pointer object
+	       DWORD number of colums to scale pointer position to
+	       DWORD number of rows to scale pointer position to
+Return: STACK popped
+SeeAlso: AH=12h/BX=1200h
+--------Q-1512--BH12-------------------------
+INT 15 - TopView - SEND MESSAGE - "READN" - GET NEXT N OBJECT BYTES
+	AH = 12h
+	BH = 12h
+	BL = window to read from
+	    00h handle is DWORD on top of stack
+	    01h read next N chars or attributes on task's default window
+	    0Ch (DV 2.26+) read window of task owning handle on top of stack
+	    0Dh (DV 2.26+) read default window of parent of current task
+	STACK: DWORD count
+Return: STACK: DWORD number of bytes actually read
+	       DWORD address of buffer containing data
+Notes:	reading starts at the current logical cursor position; the cursor is
+	  updated to point at the character following the last one read
+	any translucent blanks (FFh) which are visible on screen are changed
+	  to the character which is seen through them
+	the string produced by the read is placed in an input buffer which may
+	  be reused by the next READ or READN of a window
+	window stream opcodes D8h and D9h determine whether the read returns
+	  characters or attributes
+SeeAlso: AH=12h/BH=04h"WINDOW",AH=12h/BH=05h"WINDOW"
+--------Q-1512--BH12-------------------------
+INT 15 - DESQview 2.50+ - SEND MESSAGE - "GETNAME" - GET NAME OF MAILBOX
+	AH = 12h
+	BH = 12h
+	BL = mailbox for which to retrieve name
+	    00h DWORD on top of stack is mailbox handle
+	    02h use given task's mailbox (task's handle on top of stack)
+	    03h use current task's default mailbox
+	STACK: DWORD length of buffer for name
+	       DWORD pointer to buffer
+Return: STACK: DWORD length of returned name (or size of buffer, if less)
+Program: DESQview 2.5x is distributed as part of DESQview/X 1.0x
+Note:	the returned name is not NUL-terminated
+SeeAlso: AH=12h/BH=11h"SETNAME",AX=DE0Eh
+--------Q-1512--BX1200-----------------------
+INT 15 - TopView - SEND MESSAGE - "GETSCALE" - GET POINTER SCALE FACTOR
+	AH = 12h
+	BX = 1200h
+	STACK: DWORD object handle for pointer
+Return: STACK: DWORD pointer pos scaled as if window were this many colums wide
+	       DWORD pointer pos scaled as if window were this many rows high
+SeeAlso: AH=12h/BX=1100h
+--------Q-1512--BH13-------------------------
+INT 15 - TopView - SEND MESSAGE - "REDRAW" - REDRAW WINDOW
+	AH = 12h
+	BH = 13h
+	BL = window object
+	    00h DWORD on top of stack is handle for window to redraw
+	    01h redraw task's default window
+	    0Ch (DV 2.26+) redraw window of task owning handle on top of stack
+	    0Dh (DV 2.26+) redraw default window of parent of current task
+Return: STACK popped if handle was passed on stack
+SeeAlso: AH=12h/BH=05h"WINDOW",AH=12h/BH=0Eh
+--------Q-1512--BH13-------------------------
+INT 15 - DESQview 2.50+ - SEND MESSAGE - "READINTO" - GET NEXT MAIL MESSAGE
+	AH = 12h
+	BH = 13h
+	BL = mailbox from which to read
+	    00h DWORD on top of stack is mailbox handle
+	    02h use given task's mailbox (task's handle on top of stack)
+	    03h use current task's default mailbox
+	STACK: DWORD size of buffer in bytes
+	       DWORD pointer to buffer
+Return: STACK: DWORD number of bytes read
+Program: DESQview 2.5x is distributed as part of DESQview/X 1.0x
+Notes:	this call blocks if no input is available, but will return less than
+	  the requested number of bytes if some (but insufficient) data is
+	  available
+	use this call instead of AH=12h/BH=04h if the mailbox has flag bits
+	  4 or 5 set, as common memory may be exhausted by that call when
+	  attempting to read the next message
+SeeAlso: AH=12h/BH=04h"READ",AH=12h/BH=05h,AH=12h/BH=16h
+--------Q-1512--BX1300-----------------------
+INT 15 - TopView - SEND MESSAGE - "SETICON" - SPECIFY POINTER ICON
+	AH = 12h
+	BX = 1300h
+	STACK: DWORD object handle for pointer
+	       DWORD character to use for pointer
+Return: STACK popped
+--------Q-1512--BH14-------------------------
+INT 15 - TopView - SEND MESSAGE - "SETESC" - SET ESCAPE ROUTINE ADDRESS
+	AH = 12h
+	BH = 14h
+	BL = message modifier
+	    00h handle is DWORD on top of stack
+	    01h define user stream
+	    04h intercept keystrokes from KEYBOARD to window (handle on stack)
+	    05h intercept keystrokes from task's default KEYBOARD to a window
+	STACK: (if window)   DWORD user stream number (14h-1Fh)
+			     DWORD address of FAR user stream handler
+	       (if keyboard) DWORD address of FAR filter function (see #00452)
+Return: STACK popped
+
+(Table 00452)
+Values keyboard filter function is called with when keyboard is in field mode:
+	AL = character
+	AH = 00h or extended ASCII code if AL = 00h
+	BL = field number
+	CH = cursor column
+	CL = cursor row
+	DL = field type modifier (sixth item in field table entry)
+	DH = seventh item in field table entry
+	ES:SI = window's handle
+	DS:DI -> field table entry for field containing the cursor
+Return: AH = action to take
+	    00h use keystroke
+	    01h ignore keystroke
+	    FFh beep and ignore keystroke
+Note: the filter function is not allowed to make INT 15, DOS, or BIOS calls
+--------Q-1512--BH14-------------------------
+INT 15 - TopView - SEND MESSAGE - "LOCK" - REQUEST EXCLUSIVE ACCESS TO RESOURCE
+	AH = 12h
+	BH = 14h
+	BL = object
+	    00h mailbox handle is DWORD on top of stack
+	    02h use given task's mailbox (task's handle on top of stack)
+	    03h use current task's default mailbox
+Return: STACK popped if BL=00h
+Note:	release exclusive access by sending CLOSE message to mailbox
+	access may be requested multiple times, and requires multiple CLOSEs
+SeeAlso: AH=12h/BH=0Dh
+--------Q-1512--BH15-------------------------
+INT 15 - DESQview v2.20+ - SEND MESSAGE - "SETFLAGS" - SET OBJECT FLAGS
+	AH = 12h
+	BH = 15h
+	BL = object
+	    00h DWORD on top of stack
+		mailbox, keyboard, or pointer only
+	    02h mailbox for task whose handle is on top of stack
+	    03h mailbox for current task
+	    04h keyboard for task whose handle is on top of stack
+	    05h keyboard for current task
+	STACK: DWORD flags (see #00453,#00454)
+Return: STACK popped
+Notes:	only available if the API level has been set to at least 2.20
+	equivalent to performing SUBFROM and ADDTO calls on the object
+	if a mailbox has bits 4 or 5 set, you must use "READINTO" rather than
+	  "READ" (see AH=12h/BH=13h"READINTO") to retrieve messages
+SeeAlso: AH=12h/BH=0Ah,AH=12h/BH=0Bh,AH=12h/BH=16h
+
+Bitfields for DESQview mailbox object flags:
+Bit(s)	Description	(Table 00453)
+ 0	all mail messages in common memory
+ 1	allow write even if closed
+ 2	don't erase messages when mailbox closed
+ 4	(DV/X) append messages with like status and sender (stream-oriented
+	  mail)
+ 5	(DV/X) store mail in expanded memory (pool grows as needed)
+ 6	(DV/X) make mailbox into non-owned mailbox
+
+Bitfields for DESQview keyboard object flags:
+Bit(s)	Description	(Table 00454)
+ 5	exclusive input when keyboard in use for input
+--------Q-1512--BH16-------------------------
+INT 15 - DESQview v2.20+ - SEND MESSAGE - "GETFLAGS" - GET OBJECT FLAGS
+	AH = 12h
+	BH = 16h
+	BL = object
+	    00h DWORD on top of stack
+		mailbox, keyboard, or pointer only
+	    02h mailbox for task whose handle is on top of stack
+	    03h mailbox for current task
+	    04h keyboard for task whose handle is on top of stack
+	    05h keyboard for current task
+Return: STACK: DWORD current control flags (see #00453,#00454)
+Notes:	only available if the API level has been set to at least 2.20
+	if a mailbox has bits 4 or 5 set, you must use "READINTO" rather than
+	  "READ" (see AH=12h/BH=13h"READINTO") to retrieve messages
+SeeAlso: AH=12h/BH=0Ah,AH=12h/BH=0Bh,AH=12h/BH=13h"READINTO",AH=12h/BH=15h
+--------Q-1512--BH17-------------------------
+INT 15 - DESQview v2.42-2.52 - BUG
+	AH = 12h
+	BH = 17h
+	BL = object
+	    00h DWORD on top of stack
+		mailbox, keyboard, or pointer only
+	    02h mailbox for task whose handle is on top of stack
+	    03h mailbox for current task
+	    04h keyboard for task whose handle is on top of stack
+	    05h keyboard for current task
+Return: STACK popped if handle passed on stack
+Notes:	due to a fencepost error, message 17h is accepted for mailboxes,
+	  keyboards, and pointers, but causes a random branch
+	DESQview v2.50-2.52 are distributed as part of DESQview/X v1.02
+--------Q-1512--BH80-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 00h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 80h
+Note:	this function is identical to AH=12h/BH=00h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=00h
+
+(Table 00455)
+Values for DESQview error code:
+ 00h	no error
+ 01h	invalid values
+ 02h	alias invalid
+ 03h	handle valid but wrong type
+ 04h	invalid handle
+--------Q-1512--BH81-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 01h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 81h
+Note:	this function is identical to AH=12h/BH=01h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=01h
+--------Q-1512--BH82-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 02h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 82h
+Note:	this function is identical to AH=12h/BH=02h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=02h
+--------Q-1512--BH83-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 03h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 83h
+Note:	this function is identical to AH=12h/BH=03h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=03h,AH=12h/BX=0300h
+--------Q-1512--BH84-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 04h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 84h
+Note:	this function is identical to AH=12h/BH=04h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=04h,AH=12h/BX=0400h
+--------Q-1512--BH85-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 05h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 85h
+Note:	this function is identical to AH=12h/BH=05h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=05h
+--------Q-1512--BH86-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 06h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 86h
+Note:	this function is identical to AH=12h/BH=06h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=06h
+--------Q-1512--BH87-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 07h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 87h
+Note:	this function is identical to AH=12h/BH=07h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=07h
+--------Q-1512--BH88-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 08h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 88h
+Note:	this function is identical to AH=12h/BH=08h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=08h
+--------Q-1512--BH89-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 09h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 89h
+Note:	this function is identical to AH=12h/BH=09h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=09h
+--------Q-1512--BH8A-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 0Ah WITH ERROR RECOVERY
+	AH = 12h
+	BH = 8Ah
+Note:	this function is identical to AH=12h/BH=0Ah, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=0Ah
+--------Q-1512--BH8B-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 0Bh WITH ERROR RECOVERY
+	AH = 12h
+	BH = 8Bh
+Note:	this function is identical to AH=12h/BH=0Bh, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=0Bh
+--------Q-1512--BH8C-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 0Ch WITH ERROR RECOVERY
+	AH = 12h
+	BH = 8Ch
+Note:	this function is identical to AH=12h/BH=0Ch, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=0Ch
+--------Q-1512--BH8D-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 0Dh WITH ERROR RECOVERY
+	AH = 12h
+	BH = 8Dh
+Note:	this function is identical to AH=12h/BH=0Dh, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=0Dh
+--------Q-1512--BH8E-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 0Eh WITH ERROR RECOVERY
+	AH = 12h
+	BH = 8Eh
+Note:	this function is identical to AH=12h/BH=0Eh, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=0Eh
+--------Q-1512--BH8F-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 0Fh WITH ERROR RECOVERY
+	AH = 12h
+	BH = 8Fh
+Note:	this function is identical to AH=12h/BH=0Fh, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=0Fh
+--------Q-1512--BH90-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 10h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 90h
+Note:	this function is identical to AH=12h/BH=10h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=10h
+--------Q-1512--BH91-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 11h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 91h
+Note:	this function is identical to AH=12h/BH=11h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=11h,AH=12h/BX=1100h
+--------Q-1512--BH92-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 12h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 92h
+Note:	this function is identical to AH=12h/BH=12h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=12h,AH=12h/BX=1200h
+--------Q-1512--BH93-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 13h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 93h
+Note:	this function is identical to AH=12h/BH=13h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=13h
+--------Q-1512--BH94-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 14h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 94h
+Note:	this function is identical to AH=12h/BH=14h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=14h
+--------Q-1512--BH95-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 15h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 95h
+Note:	this function is identical to AH=12h/BH=15h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=15h
+--------Q-1512--BH96-------------------------
+INT 15 - DESQview v2.50+ - SEND MESSAGE 16h WITH ERROR RECOVERY
+	AH = 12h
+	BH = 96h
+Note:	this function is identical to AH=12h/BH=16h, except that DESQview will
+	  not pop up a "Programming Error" window, instead returning an error
+	  code in AL (see #00455)
+SeeAlso: AH=12h/BH=16h
+--------T-1513-------------------------------
+INT 15 - VMiX - "sys_wake" - WAKE SLEEPING PROCESS
+	AH = 13h
+	STACK:	WORD	process ID
+Return: AX = status (SYS_OK or SYS_ERROR)
+SeeAlso: AH=12h"VMiX"
+--------T-1513-------------------------------
+INT 15 - MultiDOS Plus - GET TASK CONTROL BLOCK
+	AH = 13h
+Return: BX:AX -> task control block (see #00456)
+SeeAlso: AH=15h"MultiDOS"
+
+Format of MultiDOS Plus v4.0 task control block:
+Offset	Size	Description	(Table 00456)
+ 00h	DWORD	pointer to next TCB
+ 04h  8 BYTEs	ASCIZ task name
+ 0Ch  2 BYTEs	???
+ 0Eh	WORD	task PSP segment
+ 10h	WORD	abort/suspend flags
+ 12h	WORD	current screen segment (see AH=0Bh,AH=0Ch)
+ 14h	WORD	priority level (0000h-FFFEh)
+ 16h	WORD	time slice counter
+ 18h  2 BYTEs	???
+ 1Ah	WORD	suspend timer value
+ 1Ch	WORD	stack segment
+ 1Eh	WORD	stack pointer
+ 20h	WORD	display type
+ 22h	WORD	display memory
+ 24h  2 BYTEs	???
+ 26h	WORD	termination count
+ 28h	WORD	equipment flag for BIO10 driver
+ 2Ah	BYTE	background CRT mode
+ 2Bh	WORD	screen width in columns
+ 2Dh	WORD	screen size in bytes
+ 2Fh	WORD	segment of physical screen memory
+ 31h 16 BYTEs	eight cursor positions
+ 41h	WORD	current cursor shape
+ 43h	BYTE	active display page
+ 44h	WORD	CRT controller I/O port base
+ 46h  2 BYTEs	???
+ 48h	WORD	foreground task flag
+ 4Ah  6 BYTEs	???
+ 50h	WORD	saved video segment (see AH=0Bh,AH=0Ch)
+ 52h	DWORD	old INT 22
+ 56h	DWORD	old INT 23
+ 5Ah	DWORD	old INT 24
+ 5Eh	WORD	top of memory for task
+ 60h  4 BYTEs	???
+ 64h	WORD	DTA segment (see INT 21/AH=1Ah)
+ 66h	WORD	DTA offset
+ 68h  4 BYTEs	???
+ 6Ch	BYTE	current ANSI.SYS attribute
+ 6Dh	BYTE	current ANSI.SYS column
+ 6Eh	BYTE	current ANSI.SYS row
+ 6Fh	BYTE	current ANSI.SYS display state
+ 70h	BYTE	maximum ANSI.SYS columns
+ 71h	BYTE	current ANSI.SYS page
+ 72h	WORD	saved ANSI.SYS cursor position
+ 74h	BYTE	ANSI.SYS parameter buffer index
+ 75h	BYTE	current ANSI.SYS screen mode
+ 76h	BYTE	ANSI.SYS wrap flag
+ 77h  6 BYTEs	ANSI.SYS parameter buffer
+ 7Dh	BYTE	ANSI.SYS keyboard DSR state
+ 7Eh  7 BYTEs	ANSI.SYS keyboard DSR buffer
+ 85h  3 BYTEs	???
+ 88h 16 BYTEs	request header for DOS driver calls
+ 98h 14 BYTEs	???
+ A6h	WORD	segment of EMS map if EMS task
+ A8h	WORD	flag: task makes EMS calls
+ AAh	WORD	EMS handle for task
+ ACh	WORD	keyboard shift state
+ AEh 12 BYTEs	???
+ BAh	WORD	TCB of parent if child task
+ BCh	WORD	termination code
+ BEh	WORD	COM port number
+ C0h  4 BYTEs	???
+ C4h	WORD	current IRQ number
+ C6h  2 BYTEs	???
+ C8h	WORD	miscellaneous flag word
+ CAh  2 BYTEs	???
+ CCh	DWORD	old INT 10
+ D0h	WORD	EMS alternate map set number
+ D2h 414 BYTEs	DOS current disk and directory context (optional)
+--------T-1514-------------------------------
+INT 15 - VMiX - "sys_clrwindow" - CLEAR WINDOW
+	AH = 14h
+	STACK:	WORD	top left corner of window (high byte = row, low = col)
+		WORD	bottom right corner of window (high = row, low = col)
+Return: AX = status (SYS_OK)
+Note:	clears window to color set with "sys_setcolors" (AH=18h)
+SeeAlso: AH=15h"VMiX",AH=16h"VMiX",AH=18h"VMiX",AH=1Fh"VMiX"
+--------T-1514-------------------------------
+INT 15 - MultiDOS Plus - CHECK IF MultiDOS FOREGROUND OR BACKGROUND
+	AH = 14h
+Return: AX = current state
+	    0000h MultiDOS Plus command prompt is background task
+	    0001h command prompt is foreground task
+SeeAlso: AH=0Bh"MultiDOS"
+--------T-1515-------------------------------
+INT 15 - VMiX - "sys_setbwindow" - SET BANNER WINDOW MESSAGE
+	AH = 15h
+	STACK:	DWORD	pointer to ASCIZ banner message for top of screen
+Return: AX = status (SYS_OK)
+SeeAlso: AH=14h"VMiX",AH=16h"VMiX"
+--------T-1515-------------------------------
+INT 15 - MultiDOS Plus - GET SYSTEM BLOCK
+	AH = 15h
+Return: BX:AX -> system block (see #00457)
+SeeAlso: AH=13h"MultiDOS"
+
+Format of MultiDOS Plus 4.0 system block:
+Offset	Size	Description	(Table 00457)
+ 00h	WORD	segment of system control block
+ 02h	WORD	redirection flag set by /NOREDIRECT
+ 04h	WORD	no-INT 10 flag set by /NO10
+ 06h	DWORD	old INT 10
+ 0Ah	DWORD	new INT 10
+ 0Eh	DWORD	pointer to WORD with current TCB offset (see #00456)
+ 12h	DWORD	pointer to WORD with idle task TCB offset
+ 16h	DWORD	pointer to WORD with foreground TCB offset (see #00456)
+ 1Ah	DWORD	pointer to WORD with MultiDOS TCB offset (see #00456)
+ 1Eh	WORD	Task Control Block size
+ 20h	WORD	number of TCBs
+ 22h	WORD	flag: EMS present
+ 24h	WORD	EMS page frame base segment
+ 26h	WORD	16K pages in EMS page frame
+ 28h	WORD	base segment for conventional memory tasks
+ 2Ah	WORD	conventional memory size in paragraphs
+ 2Ch	DWORD	pointer to list of queue pointers
+--------T-1516-------------------------------
+INT 15 - VMiX - "sys_setwindow" - SET ROOT WINDOW SIZE AND HOME CURSOR
+	AH = 16h
+	STACK:	DWORD	pointer to I/O Request Packet
+		WORD	top left corner of window (high byte = row, low = col)
+		WORD	bottom right corner of window (high = row, low = col)
+Return: AX = status (SYS_OK or SYS_ERROR)
+SeeAlso: AH=14h"VMiX",AH=17h"VMiX"
+--------T-1516-------------------------------
+INT 15 - MultiDOS Plus - INITIALIZATION
+	AH = 16h
+Note:	used internally during initialization; any other calls will cause
+	  unpredictable results
+--------T-1517-------------------------------
+INT 15 - VMiX - "sys_getcolors" - GET CONSOLE WINDOW COLORS
+	AH = 17h
+Return: AH = foreground color
+	AL = background color
+SeeAlso: AH=16h"VMiX",AH=18h"VMiX"
+--------T-1517-------------------------------
+INT 15 - MultiDOS Plus - MAP IRQ
+	AH = 17h
+	AL = IRQ to map (01h-0Fh)
+	BX = offset of task control block (see #00456) to associate with IRQ
+Return: AX = status
+	    0000h successful
+	    other invalid IRQ
+Note:	the EMS map of the specified TCB is associated with the given interrupt
+SeeAlso: AH=18h"MultiDOS",AH=19h"MultiDOS"
+--------T-1518-------------------------------
+INT 15 - VMiX - "sys_setcolors" - SET CONSOLE COLORS
+	AH = 18h
+	STACK:	WORD	new background/foreground colors
+			bits 3-0: foreground
+			bits 7-4: background
+			bits 15-8: unused
+Return: AX = color
+SeeAlso: AH=14h"VMiX",AH=17h"VMiX",AH=19h"VMiX"
+--------T-1518-------------------------------
+INT 15 - MultiDOS Plus - UNMAP IRQ
+	AH = 18h
+	AL = IRQ to unmap (01h-0Fh)
+Return: AX = status
+	    0000h successful
+	    0001h invalid IRQ
+Note:	results are unpredictable if the IRQ has not been mapped
+SeeAlso: AH=17h"MultiDOS",AH=19h"MultiDOS"
+--------T-1519-------------------------------
+INT 15 - VMiX v2+ - "sys_setconwn" - SET WINDOW COLORS
+	AH = 19h
+	STACK:	WORD	new background/foreground colors
+			bits 3-0: foreground
+			bits 7-4: background
+			bits 15-8: unused
+Return: AX = color
+SeeAlso: AH=18h"VMiX"
+--------T-1519-------------------------------
+INT 15 - MultiDOS Plus - UNMAP ALL IRQs
+	AH = 19h
+Return: AX destroyed
+Note:	for MultiDOS internal use only
+SeeAlso: AH=17h"MultiDOS",AH=18h"MultiDOS"
+--------T-151A-------------------------------
+INT 15 - VMiX v2+ - "sys_sint" - INVOKE SOFTWARE INTERRUPT
+	AH = 1Ah
+	STACK:	WORD	interrupt number
+		DWORD	pointer to register structure
+Return: AX = returned flags
+--------T-151A-------------------------------
+INT 15 - MultiDOS Plus - MAP SEMAPHORE NAME TO NUMBER
+	AH = 1Ah
+	DS:SI -> 8-byte name
+Return: AL = status
+	    00h successful
+		AH = semaphore number (20h-3Fh)
+	    04h out of string space
+Notes:	all eight bytes of the name are significant
+	if the name does not already exist, it is added to the name table and
+	  associated with a free semaphore number
+	names cannot be destroyed
+SeeAlso: AH=1Bh"MultiDOS",AH=1Ch"MultiDOS",AH=1Dh"MultiDOS"
+--------T-151B-------------------------------
+INT 15 - VMiX v2+ - "sys_blkmov" - MOVE MEMORY BLOCK
+	AH = 1Bh
+	STACK:	DWORD	source address
+		DWORD	destination address
+		WORD	number of words to move
+Return: nothing
+--------T-151B-------------------------------
+INT 15 - MultiDOS Plus - REQUEST RESOURCE SEMAPHORE BY NAME
+	AH = 1Bh
+	DS:SI -> 8-byte name
+Return: AH = status
+	    00h successful
+	    02h invalid semaphore number
+	    03h caller already owns semaphore
+	    04h out of string space
+Notes:	(see AH=01h"MultiDOS")
+	equivalent to AH=1Ah followed by AH=01h
+SeeAlso: AH=01h"MultiDOS",AH=1Ah"MultiDOS",AH=1Ch"MultiDOS",AH=1Dh"MultiDOS"
+--------T-151C-------------------------------
+INT 15 - VMiX v2+ - "sys_bitblt" - PUT GRAPHICAL OBJECT AT CURSOR POSITION
+	AH = 1Ch
+	STACK:	WORD	AND/OR pixel with background (00h = OR, 01h = AND)
+		DWORD	pointer to object bitmap
+		WORD	object width in pixels
+		WORD	object height in pixels
+Return: nothing
+SeeAlso: AH=1Dh"VMiX"
+--------T-151C-------------------------------
+INT 15 - MultiDOS Plus - RELEASE RESOURCE SEMAPHORE BY NAME
+	AH = 1Ch
+	DS:SI -> 8-byte name
+Return: AH = status
+	    00h successful
+	    01h not semaphore owner
+	    02h invalid semaphore number
+	    04h out of string space
+Notes:	(see AH=02h"MultiDOS")
+	equivalent to AH=1Ah followed by AH=02h
+SeeAlso: AH=02h"MultiDOS",AH=1Ah"MultiDOS",AH=1Bh"MultiDOS",AH=1Dh"MultiDOS"
+--------T-151D-------------------------------
+INT 15 - VMiX v2+ - "sys_getfont" - GET CURRENT CONSOLE GRAPHICS FONT
+	AH = 1Dh
+Return: AX = current font number (00h-03h)
+SeeAlso: AH=1Ch"VMiX",AH=1Eh"VMiX"
+--------T-151D-------------------------------
+INT 15 - MultiDOS Plus - TEST RESOURCE SEMAPHORE BY NAME
+	AH = 1Dh
+	DS:SI -> 8-byte name
+Return: AH = status
+	    00h semaphore not in use
+	    01h semaphore owned by another task
+	    02h invalid semaphore number
+	    03h caller owns semaphore
+	    04h out of string space
+Notes:	(see AH=10h"MultiDOS")
+	equivalent to AH=1Ah followed by AH=10h
+SeeAlso: AH=10h"MultiDOS",AH=1Ah"MultiDOS",AH=1Bh"MultiDOS",AH=1Ch"MultiDOS"
+--------T-151E-------------------------------
+INT 15 - VMiX v2+ - "sys_setfont" - SET CONSOLE GRAPHICS FONT
+	AH = 1Eh
+	STACK: WORD new font number (00h-03h)
+Return: AX = current font number (00h-03h)
+SeeAlso: AH=1Dh"VMiX"
+--------T-151E00-----------------------------
+INT 15 - MultiDOS Plus - CLEAR EVENT COUNTER
+	AX = 1E00h
+	DX = event/trigger number (00h-3Fh)
+Return: AH = status
+	    00h successful
+SeeAlso: AX=1E01h,AX=1E02h
+--------T-151E01-----------------------------
+INT 15 - MultiDOS Plus - TRIGGER EVENT
+	AX = 1E01h
+	DX = event/trigger number (00h-3Fh)
+Return: AH = status
+	    00h successful
+	    01h invalid event/trigger number
+Notes:	schedules any task waiting for event; if no task is waiting, the event
+	  counter is incremented (and will roll over if it was 65535)
+	may be invoked by interrupt handler
+SeeAlso: AX=1E00h,AX=1E02h
+--------T-151E02-----------------------------
+INT 15 - MultiDOS Plus - WAIT FOR EVENT
+	AX = 1E02h
+	DX = event/trigger number (00h-3Fh)
+Return: AH = status
+	    00h successful
+	    01h invalid event/trigger number
+Note:	if the event counter is zero, the task is suspended until the event is
+	  triggered with AX=1E01h; else, the counter is decremented and the
+	  call returns immediately
+SeeAlso: AX=1E00h,AX=1E01h
+--------T-151E08-----------------------------
+INT 15 - MultiDOS Plus 4.01 - SET CONTEXT-SWITCH FUNCTIONS
+	AX = 1E08h
+	DX:BX -> context save handler (see #00458)
+	DX:CX -> context restore handler (see #00458)
+Return: nothing
+Note:	handlers may be removed by setting addresses to 0000h:0000h
+
+(Table 00458)
+Values MultiDOS Plus context-switch handlers are called with:
+	ES:BX -> task's TCB
+Return: all registers preserved
+--------T-151F-------------------------------
+INT 15 - VMiX v2.???+ - "sys_scrollwin" - SCROLL WINDOW
+	AH = 1Fh
+	STACK:	WORD	top left corner of window (high byte = row, low = col)
+		WORD	bottom right corner of window
+Return: AX = status (SYS_OK)
+SeeAlso: AH=14h"VMiX",AH=18h"VMiX"
+--------T-151F-------------------------------
+INT 15 - MultiDOS Plus v4.01 - GET MEMORY PARAMETERS
+	AH = 1Fh
+Return: BX = first segment of conventional memory
+	DX = first segment of EMS swap frame into which MultiDOS will load
+		programs
+--------T-1520-------------------------------
+INT 15 - MultiDOS Plus v4.01 - CHECK IF MULTITASKING ENABLED
+	AH = 20h
+Return: AX = current state
+	    0000h multitasking enabled
+	    other TCB of task that disabled multitasking
+SeeAlso: AH=0Dh"MultiDOS",AH=13h"MultiDOS"
+--------c-152000-----------------------------
+INT 15 U - DOS 3.0+ PRINT.COM - DISABLE CRITICAL REGION FLAG
+	AX = 2000h
+Return: nothing
+Desc:	stop setting user flag on entry to PRINT critical region
+Note:	also supported by PC Network v1.00 RECEIVER.COM
+SeeAlso: AX=2001h
+--------c-152001-----------------------------
+INT 15 U - DOS 3.0+ PRINT.COM - SET CRITICAL REGION FLAG
+	AX = 2001h
+	ES:BX -> byte which is to be incremented while in a DOS call
+Return: nothing
+Desc:	specify a user flag which PRINT should set to let an interested
+	  application know it is in a critical region
+Note:	also supported by PC Network v1.00 RECEIVER.COM
+SeeAlso: AX=2000h
+--------O-152010-----------------------------
+INT 15 - OS HOOK - SETUP SYSREQ ROUTINE (AT,XT286,PS50+)
+	AX = 2010h
+	???
+Return: ???
+SeeAlso: AX=2011h
+--------O-152011-----------------------------
+INT 15 - OS HOOK - COMPLETION OF SYSREQ FUNCTION (AT,XT286,PS50+)
+	AX = 2011h
+	???
+Return: ???
+SeeAlso: AX=2010h
+--------B-1521-------------------------------
+INT 15 - SYSTEM - POWER-ON SELF-TEST ERROR LOG (PS50+)
+	AH = 21h
+	AL = subfunction
+	    00h read POST log
+	    01h write POST log
+		BH = device ID
+		BL = error code
+Return: CF clear if successful
+	CF set on error
+	AH = status
+	    00h OK
+	    01h list full
+	    02h unsupported subfunction
+	    80h invalid command
+	    86h unsupported function
+	if function 00h:
+	   BX = number of error codes stored
+	   ES:DI -> error log
+Notes:	the log is a series of words, the first byte of which identifies the
+	  error code and the second the device.
+	supported by AMI PCI BIOS
+	IBM considers this a required BIOS function
+	if the device ID is FFh, the "error code" is the actual device number
+	  minus 255 (thus these devices have no specific error codes)
+SeeAlso: AH=23h"SYSTEM",AH=24h"SYSTEM"
+--------B-1522-------------------------------
+INT 15 - SYSTEM - later PS/2s - LOCATE ROM BASIC
+	AH = 22h
+Return: CF set on error
+	    AH = status (86h if function not supported)
+	CF clear on success
+	    AH = 00h
+	    ES:BX -> ROM BASIC
+Notes:	if this function is not supported, ROM BASIC is at F600h:0000h
+	IBM classifies this function as optional
+SeeAlso: INT 86"BASIC",INT F0"BASIC"
+--------B-152300-----------------------------
+INT 15 u - IBM BIOS - SMART ENERGY SYSTEM - GET ??? CMOS DATA
+	AX = 2300h
+Return: CF clear if successful
+	    CL = value of CMOS location 2Dh
+	    CH = value of CMOS location 2Eh
+	CF set on error
+	    AH = error code (80h,86h)
+Note:	IBM classifies this function as optional
+SeeAlso: AX=2301h,AX=2304h,AX=2305h
+--------B-152301-----------------------------
+INT 15 u - IBM BIOS - SMART ENERGY SYSTEM - SET ??? CMOS DATA
+	AX = 2301h
+	CL = new value for CMOS location 2Dh
+	CH = new value for CMOS location 2Eh
+Return: CF clear if successful
+	CF set on error
+	    AH = error code (80h,86h)
+Notes:	sets the contents of CMOS locations 2Dh and 2Eh
+	IBM classifies this function as optional
+SeeAlso: AX=2300h,AX=2304h,AX=2305h
+--------B-152302-----------------------------
+INT 15 u - IBM BIOS - SMART ENERGY SYSTEM - GET ROM STARTUP VIDEO REG TABLES
+	AX = 2302h
+	BL = data index (00h-0Dh) (see #00459)
+Return: ES:BX -> table for register (see #00460,#00461)
+	CX = size of table in bytes (may be 0000h)
+Note:	IBM classifies this function as optional
+SeeAlso: AX=2300h,AX=2301h,AX=2303h
+
+(Table 00459)
+Values for PS/1 ROM startup video register tables:
+ 00h	DAC registers
+ 01h	???
+ 02h	Palette registers
+ 03h-0Dh ???
+
+Format of PS/1 ROM startup DAC register table:
+Offset	Size	Description	(Table 00460)
+ 00h	WORD	number of DAC registers in table
+ 02h	var	array of 3-byte DAC register values, starting at register 00h
+SeeAlso: #00459
+
+Format of PS/1 ROM startup Palette register table:
+Offset	Size	Description	(Table 00461)
+ 00h 16 BYTEs	colors for palette registers 00h through 0Fh
+ 10h	BYTE	border color
+SeeAlso: #00459,#00018
+--------B-152303-----------------------------
+INT 15 U - IBM BIOS - SMART ENERGY SYSTEM - ???
+	AX = 2303h
+	BX = ??? ('x')
+	DX = 'y' and 'z'
+		bits 15-7 = 'y'
+		bits 6-3 unused
+		bits 2-0 = 'z'
+	DI = ??? (0352h)
+Return: ???
+Notes:	performs graphics functions, writes to segment A000h and VGA I/O ports
+	IBM classifies this function as optional
+--------B-152304-----------------------------
+INT 15 u - IBM BIOS - SMART ENERGY SYSTEM - SYSTEM SETUP
+	AX = 2304h
+	DX = segment of 32K buffer
+Return: CF clear if successful
+	    AX = 0003h (left over from setting video mode 3)
+	    BX,CX,DX,BP,DS,ES destroyed
+	CF set on error
+	    AH = error code (80h,86h)
+Desc:	run system setup utility, and optionally save any changed settings to
+	  CMOS RAM
+Note:	IBM classifies this function as optional
+SeeAlso: AX=2301h,AX=2305h
+--------B-152305-----------------------------
+INT 15 u - IBM BIOS - SMART ENERGY SYSTEM - GET PROCESSOR SPEED
+	AX = 2305h
+Return: CF clear if successful
+	    AL = processor speed in MHz
+	CF set on error
+	    AL = FFh (speed unknown or >80 MHz)
+	    AL = error code (80h,86h = unsupported function)
+Note:	IBM classifies this function as optional
+SeeAlso: AX=2301h,AX=2304h,AH=BCh
+--------b-152400-----------------------------
+INT 15 - SYSTEM - later PS/2s - DISABLE A20 GATE
+	AX = 2400h
+Return: CF clear if successful
+	    AH = 00h
+	CF set on error
+	    AH = status
+		01h keyboard controller is in secure mode
+		86h function not supported
+Notes:	also supported by AMI PCI BIOS and Qualitas 386MAX v6.01+
+	IBM classifies this function as optional
+BUG:	AMI BIOS v1.00.03.AV0M never reports an error on failure to disable
+	  the A20 gate; it simply writes 0 to PORT 0092h
+SeeAlso: AX=2401h,AX=2402h,AX=2403h,PORT 0092h
+--------b-152401-----------------------------
+INT 15 - SYSTEM - later PS/2s - ENABLE A20 GATE
+	AX = 2401h
+Return: CF clear if successful
+	    AH = 00h
+	CF set on error
+	    AH = status
+		01h keyboard controller is in secure mode
+		86h function not supported
+Notes:	also supported by AMI PCI BIOS and Qualitas 386MAX v6.01+
+	IBM classifies this function as optional
+SeeAlso: AX=2400h,AX=2402h,PORT 0092h
+--------b-152402-----------------------------
+INT 15 - SYSTEM - later PS/2s - GET A20 GATE STATUS
+	AX = 2402h
+Return: CF clear if successful
+	    AH = 00h
+	    AL = current state (00h disabled, 01h enabled)
+	    CX = ??? (set to 0000h-000Bh or FFFFh by AMI BIOS v1.00.03.AV0M)
+		FFFFh if keyboard controller does not become ready within C000h
+			 read attempts
+	CF set on error
+	    AH = status
+		01h keyboard controller is in secure mode
+		86h function not supported
+Notes:	also supported by AMI PCI BIOS and Qualitas 386MAX v6.01+
+	IBM classifies this function as optional
+SeeAlso: AX=2400h,AX=2401h
+--------b-152403-----------------------------
+INT 15 - SYSTEM - later PS/2s - QUERY A20 GATE SUPPORT
+	AX = 2403h
+Return: CF clear if successful
+	    AH = 00h
+	    BX = status of A20 gate support (see #00462)
+	CF set on error
+	    AH = status
+		01h keyboard controller is in secure mode
+		86h function not supported
+Notes:	also supported by AMI PCI BIOS and Qualitas 386MAX v6.01+
+	IBM classifies this function as optional
+BUG:	at one point early in processing INT 15/AH=24h, the AMI PCI BIOS
+	  version 1.00.05.AX1 compares whether AL==03h instead of AL>=03h,
+	  thus causing a random branch on any value of AL greater than 3.
+SeeAlso: AX=2402h
+
+Bitfields for A20 gate support status:
+Bit(s)	Description	(Table 00462)
+ 0	supported on keyboard controller
+ 1	supported with bit 1 of I/O port 92h
+ 14-2	reserved
+ 15	additional data is available (location not yet defined)
+--------T-153000-----------------------------
+INT 15 - Object Kernel for DOS - INSTALLATION CHECK
+	AX = 3000h
+Return: AX:BX = 4F42h:4A21h ('OBJ!') if installed
+	    CX = resident segment
+Program: the Object Kernel is a program by M.W. Pieters which is currently
+	  under development
+Note:	Central Point's CPBACKUP v9 calls INT 15/AX=3000h at startup, but it
+	  may be checking for a different program's presence
+SeeAlso: AX=3001h,AX=3008h
+--------T-153001-----------------------------
+INT 15 - Object Kernel for DOS - GET STATUS BLOCK
+	AX = 3001h
+Return: AX = FFFFh
+	ES:DI -> status block
+SeeAlso: AX=3000h,AX=3008h
+--------T-153002-----------------------------
+INT 15 - Object Kernel for DOS - KILL PROCESS
+	AX = 3002h
+	(not yet implemented)
+SeeAlso: AX=3000h
+--------T-153003-----------------------------
+INT 15 - Object Kernel for DOS - STOP PROCESS
+	AX = 3003h
+	(not yet implemented)
+SeeAlso: AX=3000h
+--------T-153004-----------------------------
+INT 15 - Object Kernel for DOS - START PROCESS
+	AX = 3004h
+	(not yet implemented)
+SeeAlso: AX=3000h
+--------T-153005-----------------------------
+INT 15 - Object Kernel for DOS - RESTART PROCESS
+	AX = 3005h
+	(not yet implemented)
+SeeAlso: AX=3000h
+--------T-153006-----------------------------
+INT 15 - Object Kernel for DOS - EXECUTE PROCESS
+	AX = 3006h
+	(not yet implemented)
+SeeAlso: AX=3000h
+--------T-153007-----------------------------
+INT 15 - Object Kernel for DOS - LIST PROCESSES
+	AX = 3007h
+	(not yet implemented)
+SeeAlso: AX=3000h
+--------T-153008-----------------------------
+INT 15 - Object Kernel for DOS - SWITCH ObjectKernel ON/OFF
+	AX = 3008h
+	BH = new state (00h disabled, 01h enabled)
+Return: AX = FFFFh
+SeeAlso: AX=3000h,AX=3009h
+--------T-153009-----------------------------
+INT 15 - Object Kernel for DOS - RESERVED FOR FUTURE USE
+	AX = 3009h to 30FFh
+SeeAlso: AX=3000h
+Program: the Object Kernel is a program by M.W. Pieters which is currently
+	  under development
+----------153D-------------------------------
+INT 15 - IBM SurePath BIOS - Officially "Private" Function
+	AH = 3Dh
+SeeAlso: AH=07h"IBM",AH=3Eh"IBM"
+----------153E-------------------------------
+INT 15 - IBM SurePath BIOS - Officially "Private" Function
+	AH = 3Eh
+SeeAlso: AH=3Dh"IBM",AH=3Fh"IBM"
+----------153F-------------------------------
+INT 15 - IBM SurePath BIOS - Officially "Private" Function
+	AH = 3Fh
+SeeAlso: AH=07h"IBM",AH=3Eh"IBM"
+--------B-1540-------------------------------
+INT 15 - SYSTEM - READ/MODIFY PROFILES (CONVERTIBLE)
+	AH = 40h
+	AL = subfunction
+	    00h get system profile in CX and BX
+	    01h set system profile from CX and BX
+	    02h get internal modem profile in BX
+	    03h set internal modem profile from BX
+Return: CF clear if successful
+	    AH = 00h
+	CF set on error
+	    AH = status (80h = profile execution failed)
+--------V-154000-----------------------------
+INT 15 - Compaq SLT/286 or Portable 386 - READ LCD/PLASMA TIMEOUT
+	AX = 4000h
+Return: AX = 4000h
+	CL = timeout in minutes, 00h if disabled
+SeeAlso: AX=4001h,AX=4600h
+--------V-154001-----------------------------
+INT 15 - Compaq SLT/286 or Portable 386 - SET LCD/PLASMA TIMEOUT
+	AX = 4001h
+	CL = timeout in minutes, 00h to disable
+Return: AL = status
+	    00h timeout modified
+	    01h timeout cannot be modified
+	    40h timeout cannot be modified
+	CL = timeout in minutes, 00h if disabled
+SeeAlso: AX=4000h,AX=4601h
+--------B-1541-------------------------------
+INT 15 - SYSTEM - WAIT ON EXTERNAL EVENT (CONVERTIBLE and some others)
+	AH = 41h
+	AL = condition type (see #00463)
+	BH = condition compare or mask value
+	BL = timeout value times 55 milliseconds
+	    00h means no timeout
+	DX = I/O port address if AL bit 4 set
+	ES:DI -> user byte if AL bit 4 clear
+Return: after event or timeout occurs
+Note:	call AH=C0h and examine bit 3 of feature byte 1 to determine whether
+	  this function is supported
+SeeAlso: AH=83h,AH=86h,AH=C0h
+
+Bitfields for external event wait condition type:
+Bit(s)	Description	(Table 00463)
+ 0-2	condition to wait for
+	0 any external event
+	1 compare and return if equal
+	2 compare and return if not equal
+	3 test and return if not zero
+	4 test and return if zero
+ 3	reserved
+ 4	1=port address, 0=user byte
+ 5-7	reserved
+--------B-1542-------------------------------
+INT 15 - SYSTEM - REQUEST POWER OFF (CONVERTIBLE,HP 95LX)
+	AH = 42h
+	AL = suspend type
+	    00h to use system profile
+	    01h to force suspend regardless of system profile
+Return: nothing
+Note:	the HP 95LX apparently suspends regardless of the value in AL; on
+	  power-up, execution will resume following the instruction calling
+	  this function
+SeeAlso: AH=44h
+--------b-154280-----------------------------
+INT 15 - Compaq SLT/286 - ENTER STANDBY
+	AX = 4280h
+Return: AH = 42h
+	CF clear if successful
+	CF set if unable to enter standby
+SeeAlso: AX=4600h,AX=5307h/CX=0001h"STAND-BY"
+--------B-1543-------------------------------
+INT 15 - SYSTEM - READ SYSTEM STATUS (CONVERTIBLE)
+	AH = 43h
+Return: AL = status bits (see #00464)
+
+Bitfields for Convertible system status:
+Bit(s)	Description	(Table 00464)
+ 7	power low
+ 6	external power in use
+ 5	standby power lost
+ 4	power activated by alarm
+ 3	internal modem powered on
+ 2	RS232/parallel adapter powered on
+ 1	reserved
+ 0	LCD detached
+--------B-1544-------------------------------
+INT 15 - SYSTEM - (DE)ACTIVATE INTERNAL MODEM POWER (CONVERTIBLE)
+	AH = 44h
+	AL = new modem power state (00h power off, 01h power on)
+Return: nothing
+SeeAlso: AH=42h
+--------b-1544C0-----------------------------
+INT 15 - Olivetti Quaderno - INITIALIZE DIGITAL SIGNAL PROCESSING???
+	AX = 44C0h
+	ES:DI -> new DSP procedure (exchanged with CMOS[28h])
+	ES:SI -> ??? buffer
+Return: ES:DI -> old DSP procedure
+	ES:SI buffer filled with ten bytes from CMOS (addresses 14h-1Ch)
+	  followed by 00h (addresses 15h-1Ch copied only if less than 21h)
+Note:	this function is also supported by XBIOS.COM
+SeeAlso: AX=44C9h
+--------b-1544C1-----------------------------
+INT 15 - Olivetti Quaderno - ???
+	AX = 44C1h
+	???
+Return: ???
+Note:	this function is also supported by XBIOS.COM
+SeeAlso: AX=44C9h
+--------b-1544C2-----------------------------
+INT 15 - Olivetti Quaderno - ???
+	AX = 44C2h
+	DL = byte to be written to I/O port 350h
+Note:	this function is also supported by XBIOS.COM
+SeeAlso: AX=44C3h,AX=44C9h
+--------b-1544C3-----------------------------
+INT 15 - Olivetti Quaderno - GET ???
+	AX = 44C3h
+Return: DH = bitfields (see #00465)
+	DL = value read from I/O port 350h
+Note:	this function is also supported by XBIOS.COM
+SeeAlso: AX=44C2h,AX=44C9h
+
+Bitfields for Olivetti Quaderno ???:
+Bit(s)	Description	(Table 00465)
+ 5-7	5-7 read from I/O port 351h
+ 2-4	zero
+ 1-0	"tres complique"
+--------b-1544C4-----------------------------
+INT 15 - Olivetti Quaderno - ???
+	AX = 44C4h and 44C5h
+	???
+Return: ???
+Note:	this function is also supported by XBIOS.COM
+SeeAlso: AX=44C9h
+--------b-1544C6-----------------------------
+INT 15 - Olivetti Quaderno - READ LCD
+	AX = 44C6h
+Return: DX = FFFFh clock is displayed on LCD display
+	DX = other: hex number displayed in first four positions of display
+	BH = left alphanumeric character on display (see #00466)
+	BL = right alphanumeric character on display (see #00466)
+	CL = colon flags (see #00467)
+Notes:	the LCD display has the format HH:HH:AA, where H is a hex digit and A
+	  is an alphanumeric character
+	this function is also supported by XBIOS.COM
+SeeAlso: AX=44C7h,AX=44C9h
+
+(Table 00466)
+Values for Olivetti Quaderno LCD alphanumeric characters:
+ 00h-0Fh hex digit
+ 2Bh	"+"
+ 2Dh	"-"
+ 30h-39h "0" to "9"
+ 41h-5Ah "A" to "Z"
+ 61h-6Ah "a" to "z"
+ else	blank
+
+Bitfields for Olivetti Quaderno LCD colon flags:
+Bit(s)	Description	(Table 00467)
+ 0	left colon on
+ 1	right colon on
+ 2-7	unused
+--------b-1544C7-----------------------------
+INT 15 - Olivetti Quaderno - WRITE LCD
+	AX = 44C7h
+	DX = hex display
+	    FFFFh display clock and "HI", "Md", or "Lo"
+		BH,BL,CL unused
+	    other: display specified hex number in first four positions
+		BH = left alphanumeric character on display (see #00466)
+		BL = right alphanumeric character on display (see #00466)
+		CL = colon flags (see #00467)
+Return: nothing
+Note:	this function is also supported by XBIOS.COM
+SeeAlso: AX=44C6h
+--------b-1544C8-----------------------------
+INT 15 - Olivetti Quaderno - ???
+	AX = 44C8h
+	CL = ??? (00h,02h,21h)
+	CH = ???
+	???
+Return: ???
+Note:	this function is also supported by XBIOS.COM
+SeeAlso: AX=44C9h
+--------b-1544C9-----------------------------
+INT 15 - Olivetti Quaderno - GET XBIOS VERSION
+	AX = 44C9h
+Return: AL = major version
+	AH = minor version
+Note:	this function is also supported by XBIOS.COM
+--------B-1544F1-----------------------------
+INT 15 U - Toshiba laptops - SECURITY LEVEL CHECK
+	AX = 44F1h
+	DS:DX -> byte with 00h ???
+Return: ???
+Note:	used by Toshiba BIOS setup utility TSETUP.EXE to distinguish
+	  between USER and SUPERVISOR security level
+SeeAlso: AX=44F2h,AX=44F3h
+--------B-1544F2BX0604-----------------------
+INT 15 U - Toshiba laptops - SECURITY LEVEL CHECK
+	AX = 44F2h
+	BX = 0604h ???
+Return: CF = ???
+	AH = ???
+	DX = ???
+Note:	used by Toshiba BIOS setup utility TSETUP.EXE to distinguish
+	  between USER and SUPERVISOR security level
+SeeAlso: AX=44F1h,AX=44F3h
+--------B-1544F3-----------------------------
+INT 15 U - Toshiba laptops - SECURITY LEVEL CHECK
+	AX = 44F3h
+	DS:DX -> byte with 00h or 01h ???
+Return: DS:DX -> changed ???
+Note:	used by Toshiba BIOS setup utility TSETUP.EXE to distinguish
+	  between USER and SUPERVISOR security level
+SeeAlso: AX=44F1h,AX=44F2h
+--------b-1545-------------------------------
+INT 15 U - HP 100LX/200LX - SET DISPLAY CONTROL STATUS
+	AH = 45h
+	AL = new display control status
+	    bit 0: DISPCTL flag +C instead of -C
+	    bit 1: DISPCTL flag +K instead of -K
+SeeAlso: AH=46h"HP",AH=47h"HP"
+--------b-1546-------------------------------
+INT 15 U - HP 100LX/200LX - SET POWER OFF TIMEOUT
+	AH = 46h
+	BX = timeout value in ticks
+	    0000h inhibit auto power off
+Note:	the 200LX default timeout is 0CCDh = 3277 ticks = approx. 3 min.
+SeeAlso: AH=45h"HP",AH=47h"HP"
+--------b-154600-----------------------------
+INT 15 - Compaq SLT/286 - READ POWER CONSERVATION/MODEM CONFIGURATION
+	AX = 4600h
+Return: AH = modem configuration information (see #00468)
+	AL = power conservation status information (see #00469)
+	BH = default system inactivity timeout (1-21 minutes)
+	BL = current system inactivity timeout (1-21 minutes)
+	CH = default video display inactivity timeout (1-63 minutes)
+	CL = current video display inactivity timeout (1-63 minutes)
+	DH = default fixed disk drive inactivity timeout (1-21 minutes)
+	DL = current fixed disk drive inactivity timeout (1-21 minutes)
+SeeAlso: AX=4280h,AX=4601h,INT 77
+
+Bitfields for Compaq SLT/286 modem configuration information:
+Bit(s)	Description	(Table 00468)
+ 0	powerup state (0 off, 1 on)
+ 1	modem installed
+ 2	IRQ line assignment (0 IRQ 4, 1 IRQ 3)
+ 3	COM port assignment (0 = COM 2, 1 = COM 1)
+ 4	modem state (0 not assigned, 1 assigned)
+ 5	modem is on
+
+Bitfields for Compaq SLT/286 power conservation status:
+Bit(s)	Description	(Table 00469)
+ 0	power source (0 internal, 1 external)
+ 1-2	low battery state
+	00 no low battery condition
+	01 low battery 1
+	10 reserved
+	11 low battery 2
+ 3-4	power conservation mode
+	00 automatic, 01 on, 10 off, 11 reserved
+--------b-154601-----------------------------
+INT 15 - Compaq SLT/286 - MODIFY POWER CONSERVATION/MODEM CONFIGURATION
+	AX = 4601h
+	BL = system inactivity timeout (1-21 minutes)
+	    FFh do not change
+	CL = video display inactivity timeout (1-63 minutes)
+	    FFh do not change
+	DL = current fixed disk drive inactivity timeout (1-21 minutes)
+	    FFh do not change
+	DH = new modem state (00h turn off, 01h turn on, FFh don't change)
+Return: CF clear if successful
+	    AH = 00h
+	    BL = current system inactivity timeout (1-21 minutes)
+	    CL = current video display inactivity timeout (1-63 minutes)
+	    DL = current fixed disk drive inactivity timeout (1-21 minutes)
+	    DH = modem state (FFh unchanged, 00h turned off, 01h turned on)
+	CF set on error
+	    AH = error code
+		01h input is out of range
+		02h no modem present
+SeeAlso: AX=4600h,INT 77
+--------b-154604-----------------------------
+INT 15 - Compaq Contura 486 and "Alladin" 1993/08/05 ROMs - GET ???
+	AX = 4604h
+Return: CF clear if successful
+	    AL = byte read from I/O port 03F8h
+	CF set on error (not supported)
+	    AH = 86h (unsupported function)
+Note:	also supported by 1993/7/26 LTE Lite 386 ROM
+--------b-154605-----------------------------
+INT 15 - Compaq Contura 486 and "Alladin" 1993/08/05 ROMs - ???
+	AX = 4605h
+Return: CF clear if successful
+	CF set on error (not supported)
+	    AH = 86h (unsupported function)
+Note:	this function is a NOP (other than clearing CF) in the 1993/08/05
+	  version of the Contura 486/486c/486cx and "Aladdin" ROM, and the
+	  1993/7/26 LTE Lite 386 ROM
+--------b-1547-------------------------------
+INT 15 U - HP 100LX/200LX - GET/SET DISPLAY CONTRAST
+	AH = 47h
+	AL = subfunction
+	   00h set contrast
+		BL = new contrast
+		    (00h-0Fh, 0Fh is darkest, 10h-FFh are same as 0Fh)
+	   other get current contrast
+Return: AL = contrast (00h-0Fh, 0Fh is darkest)
+Note:	may be for backward compatibility with HP95LX, as INT 15/AH=62h does
+	  substantially the same thing as this function
+SeeAlso: AH=45h"HP",AH=48h"HP",AH=62h"HP"
+--------b-1548-------------------------------
+INT 15 U - HP 100LX/200LX - SET BUZZER VOLUME
+	AH = 48h
+	AL = volume (00h-03h; 03h is loudest, 04h-FFh are same as 03h)
+SeeAlso: AH=47h"HP"
+--------S-1549-------------------------------
+INT 15 U - HP 100LX/200LX - SERIAL INTERFACE SELECT
+	AH = 49h
+	AL = serial interface
+	    00h wired (COM1)
+	    01h infrared
+Note:	interface should only be changed in deactivated state (see AH=4Ah)
+SeeAlso: AH=4Ah"HP"
+--------J-154900-----------------------------
+INT 15 - Far East MS-DOS - GET BIOS TYPE
+	AX = 4900h
+Return: CF clear if successful
+	    AH = 00h
+	    BL = BIOS mode
+		00h DOS/V
+		01h standard DBCS DOS (hardware DBCS support)
+	CF set on error
+	    AH = 86h (function not supported)
+Note:	in practice, DOS/J returns AH=86h; AX DOS does not support this call
+SeeAlso: AH=50h,INT 21/AH=30h
+--------S-154A-------------------------------
+INT 15 U - HP 100LX/200LX - SERIAL INTERFACE CONTROL
+	AH = 4Ah
+	AL = control
+	    00h deactivate
+	    01h activate
+Note:	interface selected with AH=49h will be (de)activated
+SeeAlso: AH=49h"HP",AH=4Bh"HP"
+--------b-154B-------------------------------
+INT 15 U - HP 100LX/200LX - ADJUST SYSTEM TIME
+	AH = 4Bh
+Desc:	adjust system time based on real-time clock
+SeeAlso: AH=4Ah"HP",INT 1A/AH=02h,INT 21/AH=2Ch
+--------b-154DD4-----------------------------
+INT 15 - HP 95LX/100LX/200LX - INSTALLATION CHECK
+	AX = 4DD4h
+Return: BX = 4850h ("HP") if HP 95LX/100LX/200LX
+	    CX = model
+		0101h HP 95LX
+		0102h HP 100LX/200LX
+	    DH = ???
+		02h HP 200LX 2MB BIOS 1.01 A D german
+	    DL = ???
+		00h HP 95LX
+		01h HP 200LX 2MB BIOS 1.01 A D german
+SeeAlso: INT 0B"HP 95LX",INT 0F"HP 95LX",INT 5F/AH=00h,INT 60/DI=0100h
+SeeAlso: INT 61"HP 95LX"
+--------b-154E-------------------------------
+INT 15 - HP 95LX - ENABLE/DISABLE LIGHT SLEEP
+	AH = 4Eh
+	AL = light sleep
+	    00h disabled
+	    01h enabled
+Note:	when light sleep is disabled, the system will continue running at full
+	  speed; when enabled, it may automatically slow to conserve batteries
+SeeAlso: INT 06"HP 95LX",INT 60/DI=0100h
+----------154E-------------------------------
+INT 15 - IBM SurePath BIOS - Officially "Private" Function
+	AH = 4Eh
+SeeAlso: AH=07h"IBM",AH=3Eh"IBM"
+--------B-154F-------------------------------
+INT 15 C - KEYBOARD - KEYBOARD INTERCEPT (AT model 3x9,XT2,XT286,CONV,PS)
+	AH = 4Fh
+	AL = hardware scan code (see #00006)
+	CF set
+Return: CF set to continue processing scan code
+	   AL = possibly-altered hardware scan code (see #00006)
+	CF clear
+	   scan code should be ignored
+Notes:	called by INT 09 handler to translate scan codes; the INT 09 code does
+	  not examine the scan code it reads from the keyboard until after
+	  this function returns.  This permits software to rearrange the
+	  keyboard; for example, swapping the CapsLock and Control keys, or
+	  turning the right Shift key into Enter.
+	DOS 6 KEYB.COM will not pass through this function if Ctrl-Alt-Del is
+	  pressed and a SmartDrive v4-compatible cache is installed which has
+	  dirty cache buffers; some other disk caches such as HyperDisk
+	  operate similarly in order to prevent loss of cached data which has
+	  not yet been written to disk
+	IBM classifies this function as required
+SeeAlso: INT 09,INT 15/AH=C0h
+--------J-1550-------------------------------
+INT 15 - DOS/V - FONT SUBSYSTEM ACCESS
+	AH = 50h
+	AL = which function address to retrieve
+	    00h "read font" function
+	    01h "write font" function
+	BL = 00h
+	BH = character size (00h single-byte, 01h double-byte)
+	DH = width of character cell
+	DL = height of character cell
+	BP = code page (see #00470)
+Return: CF clear if successful
+	    AH = 00h
+	    ES:BX -> requested function's address
+	CF set on error
+	    AH = error code (see #00471)
+SeeAlso: AH=49h
+
+(Table 00470)
+Values for DOS/V code page:
+ 0	default
+ 437	US English
+ 932	Japanese
+ 934	Korea
+ 936	China
+ 938	Taiwan
+SeeAlso: #01757
+
+(Table 00471)
+Values for DOS/V error code:
+ 01h	invalid font type in BH
+ 02h	BL not zero
+ 03h	invalid font size
+ 04h	invalid code page
+ 80h	unsupported function (PC)
+ 86h	unsupported function (XT)
+SeeAlso: #01680
+--------T-1550-------------------------------
+INT 15 - VMIX v2.???+ - "sys_vm_page" - SET NEW VIRTUAL PAGE TABLE
+	AH = 50h
+	BX = segment of page directory table
+	CX = page number of page table
+SeeAlso: AH=10h"VMiX",AH=51h"VMiX",AH=52h"VMiX"
+--------T-1551-------------------------------
+INT 15 - VMiX v2.???+ - "sys_vm_func" - EXECUTE FUNCTION IN PROTECTED MODE
+	AH = 51h
+	STACK:	DWORD	selector:offset of function
+Return: registers as returned by function
+Note:	executes function with privilege level 0 (highest privilege)
+SeeAlso: AH=10h"VMiX",AH=52h"VMiX"
+--------B-155101-----------------------------
+INT 15 - SYSTEM - later PS/2s - EXPANSION UNIT, RETURN CONFIGURATION NUMBER
+	AX = 5101h
+Return: CF set if successful
+	    AH = 00h
+	    AL = current configuration number
+		00h system unit only
+		FFh configuration not recognized
+	    BX = status flag
+		bits 0-14: reserved
+		bit 15: additional data is available (location TBD)
+	CF clear on error
+	    AH = status
+		01h expansion unit is not present
+		86h function not supported
+Note:	CF convention is the reverse of the standard convention for this
+	  interrupt.  (Perhaps a typo in the IBM BIOS Tech Ref?)
+--------T-1552-------------------------------
+INT 15 - VMiX v2.???+ - "sys_vm_init" - INITIALIZE PROTECTED-MODE ENVIRONMENT
+	AH = 52h
+SeeAlso: AH=50h"VMiX",AH=51h"VMiX"
+--------d-1552-------------------------------
+INT 15 C - IBM/MS INT 13 Extensions - MEDIA EJECT INTERCEPT
+	AH = 52h
+	DL = drive number
+Return: CF clear if OK to eject media
+	    AH = 00h
+	CF set if ejection disallowed
+	    AH = error code (B1h,B3h) (see #00234)
+Note:	called by the IBM/MS INT 13 Extensions driver/BIOS when an ejection
+	  request is made
+SeeAlso: INT 13/AH=46h"INT 13 Extensions"
+--------p-155300-----------------------------
+INT 15 - Advanced Power Management v1.0+ - INSTALLATION CHECK
+	AX = 5300h
+	BX = device ID of system BIOS (0000h)
+Return: CF clear if successful
+	    AH = major version (BCD)
+	    AL = minor version (BCD)
+	    BX = 504Dh ("PM")
+	    CX = flags (see #00472)
+	CF set on error
+	    AH = error code (06h,09h,86h) (see #00473)
+BUG:	early versions of the Award Modular BIOS with built-in APM support
+	  reportedly do not set BX on return
+
+Bitfields for APM flags:
+Bit(s)	Description	(Table 00472)
+ 0	16-bit protected mode interface supported
+ 1	32-bit protected mode interface supported
+ 2	CPU idle call reduces processor speed
+ 3	BIOS power management disabled
+ 4	BIOS power management disengaged (APM v1.1)
+ 5-7	reserved
+
+(Table 00473)
+Values for APM error code:
+ 01h	power management functionality disabled
+ 02h	interface connection already in effect
+ 03h	interface not connected
+ 04h	real-mode interface not connected
+ 05h	16-bit protected-mode interface already connected
+ 06h	16-bit protected-mode interface not supported
+ 07h	32-bit protected-mode interface already connected
+ 08h	32-bit protected-mode interface not supported
+ 09h	unrecognized device ID
+ 0Ah	invalid parameter value in CX
+ 0Bh	(APM v1.1) interface not engaged
+ 0Ch	(APM v1.2) function not supported
+ 0Dh	(APM v1.2) Resume Timer disabled
+ 0Eh-1Fh reserved for other interface and general errors
+ 20h-3Fh reserved for CPU errors
+ 40h-5Fh reserved for device errors
+ 60h	can't enter requested state
+ 61h-7Fh reserved for other system errors
+ 80h	no power management events pending
+ 81h-85h reserved for other power management event errors
+ 86h	APM not present
+ 87h-9Fh reserved for other power management event errors
+ A0h-FEh reserved
+ FFh	undefined
+--------p-155301-----------------------------
+INT 15 - Advanced Power Management v1.0+ - CONNECT REAL-MODE INTERFACE
+	AX = 5301h
+	BX = device ID of system BIOS (0000h)
+Return: CF clear if successful
+	CF set on error
+	    AH = error code (02h,05h,07h,09h) (see #00473)
+Note:	on connection, an APM v1.1 or v1.2 BIOS switches to APM v1.0
+	  compatibility mode until it is informed that the user supports a
+	  newer version of APM (see AX=530Eh)
+SeeAlso: AX=5302h,AX=5303h,AX=5304h
+--------p-155302-----------------------------
+INT 15 R - Advanced Power Management v1.0+ - CONNECT 16-BIT PROTMODE INTERFACE
+	AX = 5302h
+	BX = device ID of system BIOS (0000h)
+Return: CF clear if successful
+	    AX = real-mode segment base address of protected-mode 16-bit code
+		segment
+	    BX = offset of entry point
+	    CX = real-mode segment base address of protected-mode 16-bit data
+		segment
+	    ---APM v1.1---
+	    SI = APM BIOS code segment length
+	    DI = APM BIOS data segment length
+	CF set on error
+	    AH = error code (02h,05h,06h,07h,09h) (see #00473)
+Notes:	the caller must initialize two consecutive descriptors with the
+	  returned segment base addresses; these descriptors must be valid
+	  whenever the protected-mode interface is called, and will have
+	  their limits arbitrarily set to 64K.
+	the protected mode interface is invoked by making a far call with the
+	  same register values as for INT 15; it must be invoked while CPL=0,
+	  the code segment descriptor must have a DPL of 0, the stack must be
+	  in a 16-bit segment and have enough room for BIOS use and possible
+	  interrupts, and the current I/O permission bit map must allow access
+	  to the I/O ports used for power management.
+	functions 00h-03h are not available from protected mode
+	on connection, an APM v1.1 or v1.2 BIOS switches to APM v1.0
+	  compatibility mode until it is informed that the user supports a
+	  newer version of APM (see AX=530Eh)
+SeeAlso: AX=5301h,AX=5303h,AX=5304h
+--------p-155303-----------------------------
+INT 15 - Advanced Power Management v1.0+ - CONNECT 32-BIT PROTMODE INTERFACE
+	AX = 5303h
+	BX = device ID of system BIOS (0000h)
+Return: CF clear if successful
+	    AX = real-mode segment base address of protected-mode 32-bit code
+		segment
+	    EBX = offset of entry point
+	    CX = real-mode segment base address of protected-mode 16-bit code
+		segment
+	    DX = real-mode segment base address of protected-mode 16-bit data
+		segment
+	    ---APM v1.1---
+	    SI = APM BIOS code segment length
+	    DI = APM BIOS data segment length
+	CF set on error
+	    AH = error code (02h,05h,07h,08h,09h) (see #00473)
+Notes:	the caller must initialize three consecutive descriptors with the
+	  returned segment base addresses for 32-bit code, 16-bit code, and
+	  16-bit data, respectively; these descriptors must be valid whenever
+	  the protected-mode interface is called, and will have their limits
+	  arbitrarily set to 64K.
+	the protected mode interface is invoked by making a far call to the
+	  32-bit code segment with the same register values as for INT 15; it
+	  must be invoked while CPL=0, the code segment descriptor must have a
+	  DPL of 0, the stack must be in a 32-bit segment and have enough room
+	  for BIOS use and possible interrupts, and the current I/O permission
+	  bit map must allow access to the I/O ports used for power management.
+	functions 00h-03h are not available from protected mode
+	on connection, an APM v1.1 or v1.2 BIOS switches to APM v1.0
+	  compatibility mode until it is informed that the user supports a
+	  newer version of APM (see AX=530Eh)
+SeeAlso: AX=5301h,AX=5302h,AX=5304h
+--------p-155304-----------------------------
+INT 15 - Advanced Power Management v1.0+ - DISCONNECT INTERFACE
+	AX = 5304h
+	BX = device ID of system BIOS (0000h)
+Return: CF clear if successful
+	CF set on error
+	    AH = error code (03h,09h) (see #00473)
+SeeAlso: AX=5301h,AX=5302h,AX=5303h
+--------p-155305-----------------------------
+INT 15 - Advanced Power Management v1.0+ - CPU IDLE
+	AX = 5305h
+Return: CF clear if successful (after system leaves idle state)
+	CF set on error
+	    AH = error code (03h,0Bh) (see #00473)
+Notes:	call when the system is idle and should be suspended until the next
+	  system event or interrupt
+	should not be called from within a hardware interrupt handler to avoid
+	  reentrance problems
+	if an interrupt causes the system to resume normal processing, the
+	  interrupt may or may not have been handled when the BIOS returns
+	  from this call; thus, the caller should allow interrupts on return
+	interrupt handlers may not retain control if the BIOS allows
+	  interrupts while in idle mode even if they are able to determine
+	  that they were called from idle mode
+	the caller should issue this call continuously in a loop until it needs
+	  to perform some processing of its own
+SeeAlso: AX=1000h,AX=5306h,INT 2F/AX=1680h
+--------p-155306-----------------------------
+INT 15 - Advanced Power Management v1.0+ - CPU BUSY
+	AX = 5306h
+Return: CF clear if successful
+	CF set on error
+	    AH = error code (03h,0Bh) (see #00473)
+Notes:	called to ensure that the system runs at full speed even on systems
+	  where the BIOS is unable to recognize increased activity (especially
+	  if interrupts are hooked by other programs and not chained to the
+	  BIOS)
+	this call may be made even when the system is already running at full
+	  speed, but it will create unnecessary overhead
+	should not be called from within a hardware interrupt handler to avoid
+	  reentrance problems
+SeeAlso: AX=5305h
+--------p-155307-----------------------------
+INT 15 - Advanced Power Management v1.0+ - SET POWER STATE
+	AX = 5307h
+	BX = device ID (see #00474)
+	CX = system state ID (see #00475)
+Return: CF clear if successful
+	CF set on error
+	    AH = error code (01h,03h,09h,0Ah,0Bh,60h) (see #00473)
+Note:	should not be called from within a hardware interrupt handler to avoid
+	  reentrance problems
+SeeAlso: AX=530Ch
+
+(Table 00474)
+Values for APM device IDs:
+ 0000h	system BIOS
+ 0001h	all devices for which the system BIOS manages power
+ 01xxh	display (01FFh for all attached display devices)
+ 02xxh	secondary storage (02FFh for all attached secondary storage devices)
+ 03xxh	parallel ports (03FFh for all attached parallel ports)
+ 04xxh	serial ports (04FFh for all attached serial ports)
+---APM v1.1+ ---
+ 05xxh	network adapters (05FFh for all attached network adapters)
+ 06xxh	PCMCIA sockets (06FFh for all)
+ 0700h-7FFFh reserved
+ 80xxh	system battery devices (APM v1.2)
+ 8100h-DFFFh reserved
+ Exxxh	OEM-defined power device IDs
+ F000h-FFFFh reserved
+
+(Table 00475)
+Values for system state ID:
+ 0000h	ready (not supported for device ID 0001h)
+ 0001h	stand-by
+ 0002h	suspend
+ 0003h	off (not supported for device ID 0001h in APM v1.0)
+---APM v1.1---
+ 0004h	last request processing notification (only for device ID 0001h)
+ 0005h	last request rejected (only for device ID 0001h)
+ 0006h-001Fh reserved system states
+ 0020h-003Fh OEM-defined system states
+ 0040h-007Fh OEM-defined device states
+ 0080h-FFFFh reserved device states
+--------p-155307CX0001-----------------------
+INT 15 - Advanced Power Management v1.0+ - SYSTEM STAND-BY
+	AX = 5307h
+	CX = 0001h
+	BX = 0001h (device ID for all power-managed devices)
+Return: CF clear
+Notes:	puts the entire system into stand-by mode; normally called in response
+	  to a System Stand-by Request notification after any necessary
+	  processing, but may also be invoked at the caller's discretion
+	should not be called from within a hardware interrupt handler to avoid
+	  reentrance problems
+	the stand-by state is typically exited on an interrupt
+SeeAlso: AX=4280h,AX=5307h/CX=0002h"SUSPEND",AX=5307h/CX=0003h,AX=530Bh
+--------p-155307CX0002-----------------------
+INT 15 - Advanced Power Management v1.0+ - SUSPEND SYSTEM
+	AX = 5307h
+	CX = 0002h
+	BX = 0001h (device ID for all power-managed devices)
+Return: after system is resumed
+	CF clear
+Notes:	puts the entire system into a low-power suspended state; normally
+	  called in response to a Suspend System Request notification after
+	  any necessary processing, but may also be invoked at the caller's
+	  discretion
+	should not be called from within a hardware interrupt handler to avoid
+	  reentrance problems
+	the caller may need to update its date and time values because the
+	  system could have been suspended for a long period of time
+SeeAlso: AX=5307h/CX=0001h"STAND-BY",AX=530Bh
+--------p-155307CX0003-----------------------
+INT 15 - Advanced Power Management v1.2 - TURN OFF SYSTEM
+	AX = 5307h
+	CX = 0003h
+	BX = 0001h (device ID for all power-managed devices)
+Return: after system is resumed
+	CF clear
+Notes:	if supported by the system's power supply, turns off the system power
+SeeAlso: AX=5307h/CX=0001h"STAND-BY",AX=530Bh
+--------p-155308-----------------------------
+INT 15 - Advanced Power Management v1.0+ - ENABLE/DISABLE POWER MANAGEMENT
+	AX = 5308h
+	BX = device ID for all devices power-managed by APM
+	    0001h (APM v1.1+)
+	    FFFFh (APM v1.0)
+	CX = new state
+	    0000h disabled
+	    0001h enabled
+Return: CF clear if successful
+	CF set on error
+	    AH = error code (01h,03h,09h,0Ah,0Bh) (see #00473)
+Notes:	when power management is disabled, the system BIOS will not
+	  automatically power down devices, enter stand-by or suspended mode,
+	  or perform any power-saving actions in response to AX=5305h calls
+	should not be called from within a hardware interrupt handler to avoid
+	  reentrance problems
+	the APM BIOS should never be both disabled and disengaged at the same
+	  time
+SeeAlso: AX=5309h,AX=530Dh,AX=530Fh
+--------p-155309-----------------------------
+INT 15 - Advanced Power Management v1.0+ - RESTORE POWER-ON DEFAULTS
+	AX = 5309h
+	BX = device ID for all devices power-managed by APM
+	    0001h (APM v1.1)
+	    FFFFh (APM v1.0)
+Return: CF clear if successful
+	CF set on error
+	    AH = error code (03h,09h,0Bh) (see #00473)
+Note:	should not be called from within a hardware interrupt handler to avoid
+	  reentrance problems
+SeeAlso: AX=5308h
+--------p-15530A-----------------------------
+INT 15 - Advanced Power Management v1.0+ - GET POWER STATUS
+	AX = 530Ah
+	BX = device ID
+	    0001h all devices power-managed by APM
+	    80xxh specific battery unit number XXh (01h-FFh) (APM v1.2)
+Return: CF clear if successful
+	    BH = AC line status
+		00h off-line
+		01h on-line
+		02h on backup power (APM v1.1)
+		FFh unknown
+		other reserved
+	    BL = battery status (see #00476)
+	    CH = battery flag (APM v1.1+) (see #00477)
+	    CL = remaining battery life, percentage
+		00h-64h (0-100) percentage of full charge
+		FFh unknown
+	    DX = remaining battery life, time (APM v1.1) (see #00478)
+	    ---if specific battery unit specified---
+	    SI = number of battery units currently installed
+	CF set on error
+	    AH = error code (09h,0Ah) (see #00473)
+Notes:	should not be called from within a hardware interrupt handler to avoid
+	  reentrance problems
+	supported in real mode (INT 15) and both 16-bit and 32-bit protected
+	  mode
+
+(Table 00476)
+Values for APM v1.0+ battery status:
+ 00h	high
+ 01h	low
+ 02h	critical
+ 03h	charging
+ FFh	unknown
+ other	reserved
+SeeAlso: #00477,#00478
+
+Bitfields for APM v1.1+ battery flag:
+Bit(s)	Description	(Table 00477)
+ 0	high
+ 1	low
+ 2	critical
+ 3	charging
+ 4	selected battery not present (APM v1.2)
+ 5-6	reserved (0)
+ 7	no system battery
+Note:	all bits set (FFh) if unknown
+SeeAlso: #00476,#00478
+
+Bitfields for APM v1.1+ remaining battery life:
+Bit(s)	Description	(Table 00478)
+ 15	time units: 0=seconds, 1=minutes
+ 14-0	battery life in minutes or seconds
+Note:	all bits set (FFFFh) if unknown
+SeeAlso: #00476,#00477
+--------p-15530B-----------------------------
+INT 15 - Advanced Power Management v1.0+ - GET POWER MANAGEMENT EVENT
+	AX = 530Bh
+Return: CF clear if successful
+	    BX = event code (see #00479)
+	    CX = event information (APM v1.2) if BX=0003h or BX=0004h
+		bit 0: PCMCIA socket was powered down in suspend state
+	CF set on error
+	    AH = error code (03h,0Bh,80h) (see #00473)
+Notes:	although power management events are often asynchronous, notification
+	  will not be made until polled via this call to permit software to
+	  only receive event notification when it is prepared to process
+	  power management events; since these events are not very time-
+	  critical, it should be sufficient to poll once or twice per second
+	the critical resume notification is made after the system resumes
+	  from an emergency suspension; normally, the system BIOS only notifies
+	  its partner that it wishes to suspend and relies on the partner to
+	  actually request the suspension, but no notification is made on an
+	  emergency suspension
+	should not be called from within a hardware interrupt handler to avoid
+	  reentrance problems
+SeeAlso: AX=5307h,AX=5307h/CX=0001h"STAND-BY",AX=5307h/CX=0002h"SUSPEND"
+
+(Table 00479)
+Values for APM event code:
+ 0001h	system stand-by request
+ 0002h	system suspend request
+ 0003h	normal resume system notification
+ 0004h	critical resume system notification
+ 0005h	battery low notification
+---APM v1.1---
+ 0006h	power status change notification
+ 0007h	update time notification
+ 0008h	critical system suspend notification
+ 0009h	user system standby request notification
+ 000Ah	user system suspend request notification
+ 000Bh	system standby resume notification
+---APM v1.2---
+ 000Ch	capabilities change notification (see AX=5310h)
+------
+ 000Dh-00FFh reserved system events
+ 01xxh	reserved device events
+ 02xxh	OEM-defined APM events
+ 0300h-FFFFh reserved
+--------p-15530C-----------------------------
+INT 15 - Advanced Power Management v1.1+ - GET POWER STATE
+	AX = 530Ch
+	BX = device ID (see #00474)
+Return: CF clear if successful
+	    CX = system state ID (see #00475)
+	CF set on error
+	    AH = error code (01h,09h) (see #00473)
+SeeAlso: AX=5307h
+--------p-15530D-----------------------------
+INT 15 - Advanced Power Management v1.1+ - EN/DISABLE DEVICE POWER MANAGEMENT
+	AX = 530Dh
+	BX = device ID (see #00474)
+	CX = function
+	    0000h disable power management
+	    0001h enable power management
+Return: CF clear if successful
+	CF set on error
+	    AH = error code (01h,03h,09h,0Ah,0Bh) (see #00473)
+Desc:	specify whether automatic power management should be active for a
+	  given device
+SeeAlso: AX=5308h,AX=530Fh
+--------p-15530E-----------------------------
+INT 15 - Advanced Power Management v1.1+ - DRIVER VERSION
+	AX = 530Eh
+	BX = device ID of system BIOS (0000h)
+	CH = APM driver major version (BCD)
+	CL = APM driver minor version (BCD) (02h for APM v1.2)
+Return: CF clear if successful
+	    AH = APM connection major version (BCD)
+	    AL = APM connection minor version (BCD)
+	CF set on error
+	    AH = error code (03h,09h,0Bh) (see #00473)
+SeeAlso: AX=5300h,AX=5303h
+--------p-15530F-----------------------------
+INT 15 - Advanced Power Management v1.1+ - ENGAGE/DISENGAGE POWER MANAGEMENT
+	AX = 530Fh
+	BX = device ID (see #00474)
+	CX = function
+	    0000h disengage power management
+	    0001h engage power management
+Return: CF clear if successful
+	CF set on error
+	    AH = error code (01h,09h) (see #00473)
+Notes:	unlike AX=5308h, this call does not affect the functioning of the APM
+	  BIOS
+	when cooperative power management is disengaged, the APM BIOS performs
+	  automatic power management of the system or device
+SeeAlso: AX=5308h,AX=530Dh
+--------p-155310-----------------------------
+INT 15 - Advanced Power Management v1.2 - GET CAPABILITIES
+	AX = 5310h
+	BX = device ID (see #00474)
+	    0000h (APM BIOS)
+	    other reserved
+Return: CF clear if successful
+	    BL = number of battery units supported (00h if no system batteries)
+	    CX = capabilities flags (see #00480)
+	CF set on error
+	    AH = error code (01h,09h,86h) (see #00473)
+Notes:	this function is supported via the INT 15, 16-bit protected mode, and
+	  32-bit protected mode interfaces; it does not require that a
+	  connection be established prior to use
+	this function will return the capabilities currently in effect, not
+	  any new settings which have been made but do not take effect until
+	  a system restart
+SeeAlso: AX=5300h,AX=530Fh,AX=5311h,AX=5312h,AX=5313h
+
+Bitfields for APM v1.2 capabilities flags:
+Bit(s)	Description	(Table 00480)
+ 15-8	reserved
+ 7	PCMCIA Ring Indicator will wake up system from suspend mode
+ 6	PCMCIA Ring Indicator will wake up system from standby mode
+ 5	Resume on Ring Indicator will wake up system from suspend mode
+ 4	Resume on Ring Indicator will wake up system from standby mode
+ 3	resume timer will wake up system from suspend mode
+ 2	resume timer will wake up system from standby mode
+ 1	can enter global suspend state
+ 0	can enter global standby state
+--------p-155311-----------------------------
+INT 15 - Advanced Power Management v1.2 - GET/SET/DISABLE RESUME TIMER
+	AX = 5311h
+	BX = device ID (see #00474)
+	    0000h (APM BIOS)
+	    other reserved
+	CL = function
+	    00h disable Resume Timer
+	    01h get Resume Timer
+	    02h set Resume Timer
+		CH = resume time, seconds (BCD)
+		DL = resume time, minutes (BCD)
+		DH = resume time, hours (BCD)
+		SI = resume date (BCD), high byte = month, low byte = day
+		DI = resume date, year (BCD)
+Return: CF clear if successful
+	    ---if getting timer---
+	    CH = resume time, seconds (BCD)
+	    DL = resume time, minutes (BCD)
+	    DH = resume time, hours (BCD)
+	    SI = resume date (BCD), high byte = month, low byte = day
+	    DI = resume date, year (BCD)
+	CF set on error
+	    AH = error code (03h,09h,0Ah,0Bh,0Ch,0Dh,86h) (see #00473)
+Notes:	this function is supported via the INT 15, 16-bit protected mode, and
+	  32-bit protected mode interfaces
+SeeAlso: AX=5300h,AX=5310h,AX=5312h,AX=5313h
+--------p-155312-----------------------------
+INT 15 - Advanced Power Management v1.2 - ENABLE/DISABLE RESUME ON RING
+	AX = 5312h
+	BX = device ID (see #00474)
+	    0000h (APM BIOS)
+	    other reserved
+	CL = function
+	    00h disable Resume on Ring Indicator
+	    01h enable Resume on Ring Indicator
+	    02h get Resume on Ring Indicator status
+Return: CF clear if successful
+	    CX = resume status (0000h disabled, 0001h enabled)
+	CF set on error
+	    AH = error code (03h,09h,0Ah,0Bh,0Ch,86h) (see #00473)
+Notes:	this function is supported via the INT 15, 16-bit protected mode, and
+	  32-bit protected mode interfaces
+SeeAlso: AX=5300h,AX=5310h,AX=5311h,AX=5313h
+--------p-155313-----------------------------
+INT 15 - Advanced Power Management v1.2 - ENABLE/DISABLE TIMER-BASED REQUESTS
+	AX = 5313h
+	BX = device ID (see #00474)
+	    0000h (APM BIOS)
+	    other reserved
+	CL = function
+	    00h disable timer-based requests
+	    01h enable timer-based requests
+	    02h get timer-based requests status
+Return: CF clear if successful
+	    CX = timer-based requests status (0000h disabled, 0001h enabled)
+	CF set on error
+	    AH = error code (03h,09h,0Ah,0Bh,86h) (see #00473)
+Notes:	this function is supported via the INT 15, 16-bit protected mode, and
+	  32-bit protected mode interfaces
+	some BIOSes set AH on return even when successful
+SeeAlso: AX=5300h,AX=5310h,AX=5311h,AX=5312h
+--------p-155380BH00-------------------------
+INT 15 - APM SL Enhanced v1.0 - GET SUSPEND/GLOBAL STANDBY MODE
+	AX = 5380h
+	BH = 00h
+Return: CF clear if successful
+	    AL = 82360SL Auto Power Off Timer High Count (APWR_TMRH)
+	    BL = sustdbymode (see #00481)
+SeeAlso: AX=5380h/BH=01h,AX=5380h/BH=02h,AX=5380h/BH=7Fh
+
+Bitfields for APM SL sustdbymode:
+Bit(s)	Description	(Table 00481)
+ 2	???
+ 1	Auto Power Off Timer Enable (APWR_TMR_EN)
+ 0	???
+--------p-155380BH01-------------------------
+INT 15 - APM SL Enhanced v1.0 - SET SUSPEND/GLOBAL STANDBY MODE
+	AX = 5380h
+	BH = 01h
+	BL = sustdbymode (see #00481)
+Return: CF clear if successful
+SeeAlso: AX=5380h/BH=00h,AX=5380h/BH=7Fh
+--------p-155380BH02-------------------------
+INT 15 - APM SL Enhanced v1.0 - GET GLOBAL STANDBY TIMER
+	AX = 5380h
+	BH = 02h
+Return: CF clear if successful
+	SI:DI = timer count in seconds (actually 1.024 seconds)
+Desc:	reads the value of 82360SL GSTDBY_TMRH & GSTDBY_TMRL registers
+SeeAlso: AX=5380h/BH=00h,AX=5380h/BH=03h,AX=5380h/BH=04h,AX=5380h/BH=7Fh
+--------p-155380BH03-------------------------
+INT 15 - APM SL Enhanced v1.0 - SET GLOBAL STANDBY TIMER
+	AX = 5380h
+	BH = 03h
+	SI:DI = timer count in seconds (actually 1.024 seconds)
+Return: CF clear if successful
+Desc:	sets the value of 82360SL GSTDBY_TMRH & GSTDBY_TMRL registers
+Note:	the maximum timer count is 268431 seconds
+SeeAlso: AX=5380h/BH=02h,AX=5380h/BH=7Fh
+--------p-155380BH04-------------------------
+INT 15 - APM SL Enhanced v1.0 - GET AUTO POWER OFF TIMER
+	AX = 5380h
+	BH = 04h
+Return: CF clear if successful
+	SI:DI = timer count in seconds (actually 1.024 seconds)
+Desc:	reads the value of 82360SL APWR_TMRH & APWR_TMRL registers
+SeeAlso: AX=5380h/BH=02h,AX=5380h/BH=05h,AX=5380h/BH=06h,AX=5380h/BH=7Fh
+--------p-155380BH05-------------------------
+INT 15 - APM SL Enhanced v1.0 - SET AUTO POWER OFF TIMER
+	AX = 5380h
+	BH = 05h
+	SI:DI = timer count in seconds (actually 1.024 seconds)
+Return: CF clear if successful
+Desc:	sets the value of 82360SL APWR_TMRH & APWR_TMRL registers
+Note:	the maximum timer count is 134213 seconds
+SeeAlso: AX=5380h/BH=04h,AX=5380h/BH=7Fh
+--------p-155380BH06-------------------------
+INT 15 - APM SL Enhanced v1.0 - GET RESUME CONDITION
+	AX = 5380h
+	BH = 06h
+Return: CF clear if successful
+	    BL = resume condition (see #00482)
+Desc:	reads the value of 82360SL RESUME_MASK register
+SeeAlso: AX=5380h/BH=04h,AX=5380h/BH=07h,AX=5380h/BH=08h,AX=5380h/BH=7Fh
+
+Bitfields for APM SL resume condition:
+Bit(s)	Description	(Table 00482)
+ 7-2	reserved (0)
+ 1	alarm enabled (resume on CMOS alarm)
+ 0	ring enabled
+--------p-155380BH07-------------------------
+INT 15 - APM SL Enhanced v1.0 - SET RESUME CONDITION
+	AX = 5380h
+	BH = 07h
+	BL = resume condition (see #00482)
+Return: CF clear if successful
+Desc:	sets the value of 82360SL RESUME_MASK register
+SeeAlso: AX=5380h/BH=06h,AX=5380h/BH=7Fh
+--------p-155380BH08-------------------------
+INT 15 - APM SL Enhanced v1.0 - GET CALENDAR EVENT TIME
+	AX = 5380h
+	BH = 08h
+Return: CF clear if successful
+	    CH = hours
+	    CL = minutes
+	    SI = seconds
+	CF set on error
+	    AH = error code (see #00483)
+Desc:	gets calendar event time from CMOS ram
+SeeAlso: AX=5380h/BH=06h,AX=5380h/BH=09h,AX=5380h/BH=0Ah,AX=5380h/BH=7Fh
+
+(Table 00483)
+Values for APM SL error code:
+ 02h	no alarm set
+ 03h	no battery
+--------p-155380BH09-------------------------
+INT 15 - APM SL Enhanced v1.0 - SET CALENDAR EVENT TIME
+	AX = 5380h
+	BH = 09h
+	CH = hours
+	CL = minutes
+	SI = seconds
+Return: CF clear if successful
+	CF set on error
+	    AH = error code (see #00483)
+Desc:	sets calendar event time in CMOS ram, enables Alarm resume
+SeeAlso: AX=5380h/BH=08h,AX=5380h/BH=7Fh
+--------p-155380BH0A-------------------------
+INT 15 - APM SL Enhanced v1.0 - GET CALENDAR EVENT DATE
+	AX = 5380h
+	BH = 0Ah
+Return: CF clear if successful
+	    SI = century
+	    DI = year
+	    CH = month
+	    CL = day
+	CF set on error
+	    AH = error code (see #00483)
+Desc:	reads calendar event date from Extended CMOS ram
+SeeAlso: AX=5380h/BH=08h,AX=5380h/BH=0Bh,AX=5380h/BH=0Ch,AX=5380h/BH=7Fh
+--------p-155380BH0B-------------------------
+INT 15 - APM SL Enhanced v1.0 - SET CALENDAR EVENT DATE
+	AX = 5380h
+	BH = 0Bh
+	SI = century
+	DI = year
+	CH = month
+	CL = day
+Return: CF clear if successful
+	CF set on error
+	    AH = error code (see #00483)
+Desc:	sets calendar event date in Extended CMOS ram
+SeeAlso: AX=5380h/BH=0Ah,AX=5380h/BH=7Fh
+--------p-155380BH0C-------------------------
+INT 15 - APM SL Enhanced v1.0 - GET CPU SPEED MODE
+	AX = 5380h
+	BH = 0Ch
+Return: CF clear if successful
+	CL = CPU clock divider (1,2,4 or 8)
+	BL = autocpumode ???
+Desc:	reads bits 4-5 of CPUPWRMODE register
+SeeAlso: AX=5380h/BH=0Ah,AX=5380h/BH=0Dh,AX=5380h/BH=7Fh
+--------p-155380BH0D-------------------------
+INT 15 - APM SL Enhanced v1.0 - SET CPU SPEED MODE
+	AX = 5380h
+	BH = 0Dh
+	CL = CPU clock divider (1,2,4 or 8)
+	BL = autocpumode ???
+Return: CF clear if successful
+Desc:	writes bits 4-5 of CPUPWRMODE register
+SeeAlso: AX=5380h/BH=0Ch,AX=5380h/BH=7Eh,AX=5380h/BH=7Fh
+--------p-155380BH7E-------------------------
+INT 15 - APM SL Enhanced v1.0 - SL HW PARAMETER
+	AX = 5380h
+	BH = 7Eh
+Return: AL = ???
+	    03h on A-Step 386SL BIOSes
+	    12h on later steps
+	BX = Control port (00B0h)
+SeeAlso: AX=5380h/BH=00h,AX=5380h/BH=7Fh
+--------p-155380BH7F-------------------------
+INT 15 - Advanced Power Management v1.1 - OEM APM INSTALLATION CHECK
+	AX = 5380h
+	BH = 7Fh
+Return: CF clear if successful
+	    BX = OEM identifier
+	    all other registers OEM-defined
+	    ---Intel SL Enhanced Option BIOS---
+	    BX = 534Ch ('SL')
+	    CL = 4Fh ('O')
+	    AL = version (10h = 1.0)
+	    ---HP APM BIOS---
+	    BX = 4850h ('HP')
+	    CX = version (0001h)
+	CF set on error
+	    AH = error code (03h) (see #00473)
+SeeAlso: AX=5380h/BH=00h
+--------p-155380-----------------------------
+INT 15 - Advanced Power Management v1.1 - OEM APM FUNCTIONS
+	AX = 5380h
+	BH <> 7Fh
+	all other registers OEM-defined
+Return: OEM-defined
+SeeAlso: AX=5380h/BH=7Fh
+--------p-155380BX8000-----------------------
+INT 15 U - Phoenix BIOS 4.0 Rel 6.0 - ???
+	AX = 5380h
+	BX = 8000h
+	CX = 0020h
+Return: ???
+Note:	although a check for the indicated value is present in the examined
+	  copy of the BIOS, no code was associated with it (possibly an OEM
+	  option not included in that copy) and this function always returns
+	  CF set/AH=03h if CX=0020h and CF set/AH=86h for CX<>0020h
+SeeAlso: AX=5380h/BX=8001h
+--------p-155380BX8001-----------------------
+INT 15 U - Phoenix BIOS 4.0 Rel 6.0 - ???
+	AX = 5380h
+	BX = 8001h
+	CX = 0020h
+Return: ???
+Note:	although a check for the indicated value is present in the examined
+	  copy of the BIOS, no code was associated with it (possibly an OEM
+	  option not included in that copy)
+SeeAlso: AX=5380h/BX=8000h
+--------X-1553B0BH00-------------------------
+INT 15 - Intel System Management Bus - RESERVED
+	AX = 53B0h
+	BH = 00h
+Program: the SMBus is a variant of ACCESS.bus being used by Intel and Duracell
+	  for the Smart Battery proposal, but designed to be generic enough to
+	  handle other devices besides batteries
+--------X-1553B0BH01-------------------------
+INT 15 - Intel System Management Bus - INSTALLATION CHECK
+	AX = 53B0h
+	BH = 01h
+	BL = 72h ('r')
+	CX = 6164h ('ad')
+Return: CF clear if installed
+	    AH = SMBus BIOS Interface Specification major version (01h)
+	    AL = SMBus BIOS Interface Specification minor version (00h)
+	    BL = number of SMBus devices present
+	    CX = 6941h ('iA')
+	    DX = vendor-specified SMBus hardware code
+		0000h means undefined hardware type
+	CF set if error
+	    AH = Error code 0Ah, 86h (see #00484)
+Note:	this function is only supported in INT 15h mode
+SeeAlso: AX=53B0h/BH=02h,AX=53B0h/BH=03h,AX=53B0h/BH=04h,AX=53B0h/BH=06h
+SeeAlso: #01105 at INT 1A/AX=B10Ah/SF=8086h
+
+(Table 00484)
+Values for Intel System Management Bus error codes:
+ 00h	SMBus OK
+ 01h	SMBus connect failed
+ 02h	SMBus already connected (see also #00485)
+ 03h	SMBus disconnect failed
+ 04h	SMBus not connected
+ 05h	SMBus INT 15 interface disabled
+ 06h	SMBus device address request out of range
+ 07h	SMBus unknown failure
+ 08h	SMBus message list empty
+ 09h	SMBus message list overflow
+ 0Ah	SMBus invalid signature
+ 10h	SMBus device address not acknowledged
+ 11h	SMBus device error detected
+ 12h	SMBus device command access denied
+ 13h	SMBus unknown error
+ 14h	SMBus transaction pending
+ 15h	SMBus no transaction pending
+ 16h	SMBus request does not match pending transaction
+ 17h	SMBus device access denied
+ 18h	SMBus timeout
+ 19h	SMBus protocol not supported
+ 1Ah	SMBus busy
+ 1Bh	SMBus SMI detected
+ 80h	SMBus OK (previously unreported SMI occurred)
+ 86h	SMBus not supported
+
+(Table 00485)
+Values for Intel System Management Bus Already Connected sub-error codes:
+ 01h	real mode connect already established
+ 02h	16-bit PMode connect already established
+ 03h	32-bit PMode connect already established
+SeeAlso: #00484
+--------X-1553B0BH02-------------------------
+INT 15 - Intel System Management Bus - REAL MODE CONNECT
+	AX = 53B0h
+	BH = 02h
+	CX = 6941h ('iA')
+Return: CF clear if successful
+	    AX = SMBus Real mode code segment
+	    BX = offset of entry point into SMBus BIOS Interface
+	    CX = SMBus Real mode data segment
+	CF set if error
+	    AH = error code (01h,02h,0Ah,86h) (see #00484)
+	    AL = sub-error code if error code is 02h (see #00485)
+Desc:	connect to SMBus interface; once connected, all SMBus calls are made
+	  to the supplied entry point instead of INT 15 (with registers
+	  identical to those described here for INT 15)
+Notes:	Support for this function is optional
+	this function is only supported in INT 15 mode when implemented
+SeeAlso: AX=53B0h/BH=01h,AX=53B0h/BH=03h,AX=53B0h/BH=04h,AX=53B0h/BH=05h
+--------X-1553B0BH03-------------------------
+INT 15 - Intel System Management Bus - 16-BIT PROTECTED-MODE CONNECT
+	AX = 53B0h
+	BH = 03h
+	CX = 6941h ('iA')
+Return: CF clear if successful
+	    AX = SMBus 16-bit code segment (real mode base address)
+	    BX = offset of entry point into SMBus BIOS Interface
+	    CX = SMBus 16-bit data segment (real mode base address)
+	    SI = code segment length in bytes
+	    DI = data segment length in bytes
+	CF set if error
+	    AH = error code (01h,02h,0Ah,86h) (see #00484)
+	    AL = sub-error code if error code is 02h (see #00485)
+Desc:	connect to SMBus interface; once connected, all SMBus calls are made
+	  to the supplied entry point instead of INT 15 (with registers
+	  identical to those described here for INT 15)
+Notes:	before calling the entry point, two descriptors must be initialized
+	  in the GDT or LDT.  They must be consecutive and be in the order of
+	  code, then data.  At the time	of the call, the descriptors must be
+	  valid and have CPL=0.
+	the code descriptor must be ring-0 privilege
+	this function is only supported in INT 15 mode
+SeeAlso: AX=53B0h/BH=01h,AX=53B0h/BH=02h,AX=53B0h/BH=04h,AX=53B0h/BH=05h
+--------X-1553B0BH04-------------------------
+INT 15 - Intel System Management Bus - 32-BIT PROTECTED-MODE CONNECT
+	AX = 53B0h
+	BH = 04h
+	CX = 6941h ('iA')
+Return: CF clear if successful
+	    AX = SMBus 32-bit code segment (real mode base address)
+	    EBX = offset of entry point into SMBus BIOS Interface
+	    CX = SMBus 16-bit code segment (real mode base address)
+	    DX = SMBus data segment (real mode base address)
+	    SI = code segment length in bytes
+	    DI = data segment length in bytes
+	CF set if error
+	    AH = error code (01h,02h,0Ah,86h) (see #00484)
+	    AL = sub-error code if error code is 02h (see #00485)
+Desc:	connect to SMBus interface; once connected, all SMBus calls are made
+	  to the supplied entry point instead of INT 15 (with registers
+	  identical to those described here for INT 15)
+Notes:	before calling the entry point, two descriptors must be initialized in
+	  the GDT or LDT.  They must be consecutive and be in the order of
+	  32-bit code, 16-bit code, then data.	At the time of the call, the
+	  descriptors must be valid and have CPL=0.
+	the code descriptors must be ring-0 privilege
+	this function is supported only in INT 15 mode
+SeeAlso: AX=53B0h/BH=01h,AX=53B0h/BH=02h,AX=53B0h/BH=03h,AX=53B0h/BH=05h
+--------X-1553B0BH05-------------------------
+INT 15 - Intel System Management Bus - DISCONNECT
+	AX = 53B0h
+	BH = 05h
+	CX = 6941h ('iA')
+Return: CF clear if successful
+	    AH = 00h (SMBus OK)
+	CF set if error
+	    AH = error code (03h,04h,05h,0Ah,86h) (see #00484)
+Note:	this function is supported in connected mode (far CALL entry point)
+	  only
+SeeAlso: AX=53B0h/BH=01h,AX=53B0h/BH=02h,AX=53B0h/BH=03h,AX=53B0h/BH=04h
+--------X-1553B0BH06-------------------------
+INT 15 - Intel System Management Bus - GET DEVICE ADDRESSES
+	AX = 53B0h
+	BH = 06h
+	BL = position in list to report
+	CH = 6941h ('iA')
+Return: CF clear if successful
+	    AH = 00h (SMBus OK)
+	    BH = number of SMBus devices
+	    BL = SMBus Device Address of device at position BL in list
+		(see #00486)
+	CF set if error
+	    AH = error code (06h,0Ah,86h) (see #00484)
+Desc:	retrieves already assigned SMBus device addresses
+Notes:	this function is supported in INT 15h mode only
+	bit 0 of the device address indicates read/write, so a device may
+	  be listed at both xxxxxxx0b and xxxxxxx1b
+SeeAlso: I2C A0h [and I2C.LST in general]
+
+(Table 00486)
+Values for System Management Bus predefined device addresses:
+ 10h	SMBus host
+ 12h	Smart Battery charger
+ 14h	Smart Battery selector
+ 16h	Smart Battery
+ 18h	SMBus Alert response
+ 50h	ACCESS.bus host
+ 58h	LCD contrast controller
+ 5Ah	CCFL backlight driver
+ 6Eh	ACCESS.bus default address
+ 80h-86h PCMCIA socket controllers
+ 88h	VGA graphics controller
+ 90h-96h unrestricted addresses
+ 82h	SMBus device default address
+--------X-1553B0BH07-------------------------
+INT 15 - Intel System Management Bus - RETRIEVE CRITICAL MESSAGES
+	AX = 53B0h
+	BH = 07h
+	CX = 6941h ('iA')
+Return: CF clear if successful
+	    AH = 00h (SMBus OK)
+	    AL = device address
+	    BX = device message
+	CF set if error
+	    AH = error code (05h,07h,08h,09h,0Ah,86h) (see #00484)
+Desc:	retrieves oldest queued critical message from an SMBus device to the
+	  host
+Notes:	up to five messages are queued; if the queue is full, messages will be
+	  lost and error 09h returned
+--------X-1553B0BH08-------------------------
+INT 15 - Intel System Management Bus - RESERVED
+	AX = 53B0h
+	BH = 08h-0Fh
+--------X-1553B0BH10-------------------------
+INT 15 - Intel System Management Bus - REQUEST
+	AX = 53B0h
+	BH = 10h
+	BL = protocol (see #00487)
+	CH = device address
+	CL = device command (see #00488)
+	DH = MSB Data or block length (for BlockWrite)
+	DL = LSB Data or first byte of block (for BlockWrite)
+Return: CF clear if successful
+	    AH = 00h or 80h (SMBus OK)
+		 (80h indicates a previously unreported SMI took place)
+	CF set if error
+	    AH = error code (05h,10h,11h,12h,13h,14h,17h,19h,1Ah,86h)
+		  (see #00484)
+Desc:	request access to a device on the SMBus
+SeeAlso: AX=53B0h/BH=11h, AX=53B0h/BH=13h
+
+(Table 00487)
+Values for Intel System Management Bus protocol codes:
+ 00h	Quick Command
+ 01h	Send Byte
+ 02h	Receive Byte
+ 03h	Write Byte
+ 04h	Read Byte
+ 05h	Write Word
+ 06h	Read Word
+ 07h	Block Write
+ 08h	Block Read
+ 09h	Process Call
+ 0Ah-FFh reserved
+SeeAlso: #00488
+
+(Table 00488)
+Values for Intel System Management Bus Smart Battery command codes:
+ Cmd	Protocol(s)	Description
+ 00h	Rd/Wr Word	"ManufacturerAccess" implementation-specific
+ 01h	Rd/Wr Word	get/set Low Capacity Alarm threshold
+ 02h	Rd/Wr Word	get/set Remaining Time Alarm value (in minutes)
+ 03h	Rd/Wr Word	get/set battery characteristics (see #00489)
+ 04h	Rd/Wr Word	"AtRate" indicate charge/discharge rate
+ 05h	Read Word	"AtRateTimeToFull" time to completely charge (in min.)
+ 06h	Read Word	"AtRateTimeToEmpty" time to entirely discharge (min.)
+ 07h	Read Word	"AtRateOK" boolean: can battery supply another 10sec?
+ 08h	Read Word	internal battery temperature (in 0.1 Kelvins)
+ 09h	Read Word	current battery voltage in millivolts
+ 0Ah	Read Word	current flowing through battery in milliamperes
+			(positive if charging, negative if discharging)
+ 0Bh	Read Word	average current over the past minute
+ 0Ch	Read Word	expected error margin in capacity computations in %
+ 0Dh	Read Word	predicted remaining charge as % of full charge
+ 0Eh	Read Word	predicted remaining charge as % of design capacity
+ 0Fh	Read Word	predicted remaining charge in mAh or 10mWh
+ 10h	Read Word	predicted full charge capacity in mAh or 10mWh
+ 11h	Read Word	predicted remaining battery life in minutes
+			FFFFh = not discharging
+ 12h	Read Word	rolling average of predicted life over past minute
+ 13h	Read Word	rolling average of predicted charge time over past min.
+			FFFFh = not charging
+ 14h	Read Word	get battery's desired charging current in mA
+ 14h	Write Word	set charging current in mA
+ 15h	Read Word	get battery's desired charging current in mV
+ 15h	Write Word	set desired charging voltage in mV
+ 16h	Read Word	get current battery status (see #00490)
+ 17h	Read Word	get number of charge/discharge cycles for battery
+ 18h	Read Word	get design capacity in mAh or 10mWh
+ 19h	Read Word	get design voltage
+ 1Ah	Read Word	get specification information (see #00491)
+ 1Bh	Read Word	get manufacture date (see #01665 at INT 21/AX=5700h)
+ 1Ch	Read Word	get serial number
+ 1Dh-1Fh		reserved
+ 20h	Read Block	get manufacturer's name
+ 21h	Read Block	get device name
+ 22h	Read Block	get device chemistry (see #00492)
+ 23h	Read Block	get manufacturer data
+ 24h-2Eh		reserved
+ 2Fh			manufacturer-specific
+ 30h-3Bh		reserved
+ 3Ch-3Fh		manufacturer-specific
+Note:	bits 7-6 are reserved for addressing multiple batteries in a future
+	  version of the specification
+SeeAlso: #00487
+
+Bitfields for Smart Battery battery characteristics:
+Bit(s)	Description	(Table 00489)
+ 0	battery has internal charge controller (read-only)
+ 1	primary/secondary battery support (read-only)
+ 6-2	reserved
+ 7	conditioning cycle requested
+ 8	internal charge controller enabled
+ 9	battery operating in primary mode
+ 13-10	reserved
+ 14	disable broadcast to charger
+ 15	report capacity in units of 10mW / 10mWh instead of mA / mAh
+SeeAlso: #00488,#00490
+
+Bitfields for Smart Battery battery status:
+Bit(s)	Description	(Table 00490)
+ 15	overcharged
+ 14	terminate-charge alarm
+ 13	reserved
+ 12	over-temperature alarm
+ 11	terminate-discharge alarm
+ 10	reserved
+ 9	remaining-capacity alarm
+ 8	remaining-time alarm
+ 7	initialized
+ 6	charging
+ 5	fully charged
+ 4	fully discharged
+ 3-0	error codes
+	0000 OK
+	0001 busy
+	0010 reserved command
+	0011 unsupported command
+	0100 access denied (tried to write to read-only value)
+	0101 overflow/underflow
+	0110 bad size
+	0111 unknown error
+SeeAlso: #00488,#00489,#00491
+
+Bitfields for Smart Battery specification information:
+Bit(s)	Description	(Table 00491)
+ 3-0	SmartBattery specification minor revision number
+ 7-4	SmartBattery specification version number
+ 11-8	voltage scaling (0-3, multiply voltages by 10^scale)
+ 15-12	current scaling (0-3, multiply currents by 10^scale)
+SeeAlso: #00488,#00490
+
+(Table 00492)
+Values for Smart Battery device chemistry (not case-sensitive):
+ "LION"	Lithium ion
+ "NiMH"	Nickel metal hydride
+ "PbAc"	lead-acid
+ "NiCd" Nickel Cadmium
+ "NiZn" Nickel Zinc
+ "RAM"	rechargeable Alkaline Manganese
+ "ZnAr" Zinc-Air
+SeeAlso: #00488
+--------X-1553B0BH11-------------------------
+INT 15 - Intel System Management Bus - REQUEST CONTINUATION
+	AX = 53B0h
+	BH = 11h
+	BL = protocol (see #00487)
+	CH = device address
+	CL = number of valid bytes in DX (1 or 2)
+	DH = MSB Data (CL = 1 or 2)
+	DL = LSB Data (CL = 2)
+Return: CF clear if successful
+	    AH = 00h (SMBus OK)
+	    CL = SMBus status
+		00h SMBus hardware not ready for more data
+		01h SMBus hardware ready for 2 more data bytes
+	CF set if error
+	    AH = error code (05h,11h,13h,15h,16h,18h,1Bh,86h) (see #00484)
+Desc:	continue WriteBlock protocol started with function 10h
+SeeAlso: AX=53B0h/BH=10h, AX=53B0h/BH=13h
+--------X-1553B0BH12-------------------------
+INT 15 - Intel System Management Bus - REQUEST ABORT
+	AX = 53B0h
+	BH = 12h
+	BL = protocol (see #00487)
+	CH = device address
+	CL = device command
+Return: CF clear if successful
+	    AH = 00h (SMBus OK)
+	CF set if error
+	    AH = error code (05h,13h,15h,16h,86h) (see #00484)
+Desc:	stop the currently pending SMBus request; usually used to terminate
+	  a request after an SMI Detected error
+--------X-1553B0BH13-------------------------
+INT 15 - Intel System Management Bus - REQUEST DATA AND STATUS
+	AX = 53B0h
+	BH = 13h
+	BL = protocol (see #00487)
+	CH = device address
+	CL = device command
+Return: CF clear if successful
+	    AH = 00h (SMBus OK)
+	    CH = status
+		00h no data pending, transaction complete
+		01h no data pending, transaction continues
+		02h data pending
+	    CL = number of valid bytes in DX (0-2)
+	    DH = MSB data
+	    DL = LSB data
+	CF set if error
+	    AH = error code (05h,10h,11h,13h,15h,16h,18h,1Bh,86h) (see #00484)
+Desc:	determine when a transaction is complete, gather data returned by read
+	  transactions
+Note:	for Block Read protocol (08h), first call returns block	length in DH
+	  and the first byte of the block in DL
+----------1554-------------------------------
+INT 15 - IBM SurePath BIOS - Officially "Private" Function
+	AH = 54h
+SeeAlso: AH=07h"IBM",AH=3Eh"IBM"
+--------T-155400-----------------------------
+INT 15 C - Omniview Multitasker - INSTALLATION NOTIFICATION
+	AX = 5400h
+	ES:BX -> device information tables
+	DI:DX -> dispatcher entry point
+Note:	called by OmniView to notify programs loaded before OmniView of state
+	  changes inside OmniView
+SeeAlso: AX=5407h,INT 2F/AX=DE00h
+--------T-155401-----------------------------
+INT 15 C - Omniview Multitasker - PROCESS CREATION
+	AX = 5401h
+	ES:BX = process handle
+Note:	called by OmniView to notify programs loaded before OmniView of state
+	  changes inside OmniView
+SeeAlso: AX=5402h,INT 2F/AX=DE04h
+--------T-155402-----------------------------
+INT 15 C - Omniview Multitasker - PROCESS DESTRUCTION
+	AX = 5402h
+	ES:DX = process handle
+Note:	called by OmniView to notify programs loaded before OmniView of state
+	  changes inside OmniView
+SeeAlso: AX=5401h,INT 2F/AX=DE05h
+--------T-155403-----------------------------
+INT 15 C - Omniview Multitasker - SAVE
+	AX = 5403h
+	ES:DX = process swapping out
+Note:	called by OmniView to notify programs loaded before OmniView of state
+	  changes inside OmniView
+SeeAlso: AX=5404h,INT 2F/AX=DE08h
+--------T-155404-----------------------------
+INT 15 C - Omniview Multitasker - RESTORE
+	AX = 5404h
+	ES:DX = process swapping in
+Note:	called by OmniView to notify programs loaded before OmniView of state
+	  changes inside OmniView
+SeeAlso: AX=5403h,INT 2F/AX=DE09h
+--------T-155405-----------------------------
+INT 15 C - Omniview Multitasker - SWITCHING TO BACKGROUND
+	AX = 5405h
+	ES:DX = process swapping in
+Note:	called by OmniView to notify programs loaded before OmniView of state
+	  changes inside OmniView
+SeeAlso: AX=5406h
+--------T-155406-----------------------------
+INT 15 C - Omniview Multitasker - SWITCHING TO FOREGROUND
+	AX = 5406h
+	ES:DX = process swapping in
+Note:	called by OmniView to notify programs loaded before OmniView of state
+	  changes inside OmniView
+SeeAlso: AX=5405h
+--------T-155407-----------------------------
+INT 15 C - Omniview Multitasker - EXIT NOTIFICATION
+	AX = 5407h
+Note:	called by OmniView to notify programs loaded before OmniView of state
+	  changes inside OmniView
+SeeAlso: AX=5400h,INT 2F/AX=DE03h
+--------V-155F31-----------------------------
+INT 15 C - Chips & Technologies '65530' BIOS - POST INITIALIZATION NOTIFICATION
+	AX = 5F31h
+Return:	nothing
+Desc:	this function is called after the video BIOS completes power-up
+	  initialization and just prior to displaying the sign-on message
+SeeAlso: AX=5F33h,AX=5F35h,INT 10/AX=5F50h
+--------V-155F33-----------------------------
+INT 15 C - Chips & Technologies '65530' BIOS - MODE SET HOOK
+	AX = 5F33h
+	BL = current width in characters
+	BH = curent video mode
+	CH = active display page
+Return:	nothing
+Desc:	this function is called at the end of a video mode set
+Note:	the OEM has the option of enabling or disabling this callout, as well
+	  as specifying whether the callout occurs on INT 15h or INT 42h
+SeeAlso: AX=5F31h,AX=5F35h,INT 10/AX=5F50h,INT 42/AX=5F33h
+--------V-155F35-----------------------------
+INT 15 C - Chips & Technologies '65530' BIOS - MONITOR SENSING HOOK
+	AX = 5F35h
+Return:	DL = boot display
+	    00h CRT
+	    01h flat panel (LCD)
+	    02h both simultaneously
+	    leave unchanged to boot according to BIOS settings
+SeeAlso: AX=5F31h,AX=5F33h,INT 10/AX=5F50h
+--------b-1560------------------------------------
+INT 15 - HUNTER 16 - SET SYSTEM CLOCK SPEED
+	AH = 60h
+	AL = new speed
+	    00h normal (8 MHz)
+	    01h Slow Mode 1 (4 MHz)
+	    02h Slow Mode 2 (2 MHz)
+Note:	the Husky Hunter 16 is an 8088-based ruggedized laptop.	 Other family
+	  members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
+SeeAlso: AX=6301h
+--------p-156000-----------------------------
+INT 15 U - HP 100LX/200LX - GET MAIN BATTERY LEVEL
+	AX = 6000h
+Return: AX = battery level
+Note:	multiply the returned value with 1Bh and add 622h to get millivolts
+SeeAlso: AX=6001h,AX=6002h,AX=6003h,AX=6004h
+--------p-156001-----------------------------
+INT 15 U - HP 100LX/200LX - GET BACKUP BATTERY LEVEL
+	AX = 6001h
+Return: AX = battery level
+Note:	multiply the returned value with 1Bh and add 622h to get millivolts
+SeeAlso: AX=6000h,AX=6002h
+--------p-156002-----------------------------
+INT 15 U - HP 100LX/200LX - GET POWER INFO
+	AX = 6002h
+Return: AL = power settings (see #00493)
+SeeAlso: AX=6000h,AX=6003h,AX=6004h
+
+Bitfields for power settings:
+Bit(s)	Description	(Table 00493)
+ 0-1	unused ???
+ 2	card battery status low (OK if bit clear)
+ 3	battery charging off (disabled if bits 3-5 clear)
+ 4	battery charging slow
+ 5	battery charging fast
+ 6	power adaptor active
+ 7	battery type NiCad (alkaline if bit clear)
+--------p-156003-----------------------------
+INT 15 U - HP 100LX/200LX - SET MAIN BATTERY TYPE
+	AX = 6003h
+	BL = battery type
+	    00h alkaline
+	    01h NiCad
+SeeAlso: AX=6000h,AX=6004h
+--------p-156004-----------------------------
+INT 15 U - HP 100LX/200LX - SET BATTERY CHARGING MODE
+	AX = 6004h
+	BL = charging
+	    00h disabled
+	    01h enabled
+SeeAlso: AX=6000h,AX=6003h
+--------b-1561------------------------------------
+INT 15 - HUNTER 16 - GET POWER LEVEL
+	AH = 61h
+Return: AH = percentage of full power left (0..100)
+Desc:	determine how much battery power is left
+SeeAlso: AH=62h,AH=66h,AH=73h"HUNTER"
+--------b-1561-------------------------------
+INT 15 U - HP 100LX/200LX - SET ANNOUNCIATORS POSITION
+	AH = 61h
+	AL = position (20h = left, 60h = right)
+Note:	The announciators are the indicator symbols for the Shift and Fn keys
+	  in the bottom line
+SeeAlso: AH=62h"HP",INT 16/AH=02h
+--------b-1562------------------------------------
+INT 15 - HUNTER 16 - SET LOW POWER THRESHOLD
+	AH = 62h
+	AL = level (00h 5%, 01h 10%, ... 12h 95%)
+	BX = interval between power low warnings in seconds (1..600)
+Return: AH = Status
+Desc:	set the level (relative to full power) when power-low warnings begin
+	  and the interval between the warnings
+SeeAlso: AH=61h,AH=65h,AH=66h
+--------b-1562-------------------------------
+INT 15 U - HP 100LX/200LX - SET DISPLAY CONTRAST
+	AH = 62h
+	BL = contrast (00h-1Fh, 1Fh is the darkest)
+SeeAlso: AH=47h"HP",AH=61h"HP"
+--------b-156300----------------------------------
+INT 15 - HUNTER 16 - GET IDLE TIMEOUT
+	AX = 6300h
+Return: AH = status
+	BX = timeout in seconds (0-3600)
+Desc:	get the idle timeout value, the interval without keyboard or
+	   communications activity before the system shuts down
+SeeAlso: AX=6301h
+--------b-156301----------------------------------
+INT 15 - HUNTER 16 - SET IDLE TIMEOUT
+	AX = 6301h
+	BX = timeout in seconds (0-3600)
+Desc:	sets the idle timeout value, the interval without keyboard or
+	  communications activity before the system shuts down
+SeeAlso: AX=6300h
+--------b-1564------------------------------------
+INT 15 - HUNTER 16 - CONTROL RESUME MODE
+	AH = 64h
+	AL = new state
+	    00h disable Resume mode
+	    01h enable Resume mode
+Return: AH = status
+Desc:	turn Resume mode on or off. In Resume mode the system starts in
+	  the application that was running when it shut down as if nothing
+	  had happened.
+SeeAlso: AH=67h,AH=68h,AH=69h
+--------b-1565------------------------------------
+INT 15 - HUNTER 16 - AUTHORISE CHARGING
+	AH = 65h
+	AL = charging level
+	    01h charging not allowed
+	    02h charging allowed until power down
+	    03h charging allowed until batteries changed or fail.
+		Ask user if charging is still allowed on next poweron
+	    04h charging allowed indefinitely
+	BX = 0203h
+	CX = 0405h
+	DX = 0607h
+Return: AH = status
+SeeAlso: AH=66h,AH=68h
+--------b-1566------------------------------------
+INT 15 - HUNTER 16 - SET BATTERY LEVEL
+	AH = 66h
+	AL = level in percent of maximum (0..100)
+Return: AH = status
+SeeAlso: AH=61h,AH=65h
+--------b-1567------------------------------------
+INT 15 - HUNTER 16 - CONTROL STOP MODE
+	AH = 67h
+	AL = mode when waiting for input
+	    00h use STOP mode (allows communication)
+	    01h use HALT mode (disallows communication)
+Return: AH = status
+Desc:	select the power save mode to use when waiting for input
+SeeAlso: AH=69h
+----------156700BXFFFF-----------------------
+INT 15h - Arabic/Hebrew MS-DOS 5.0???+ - INSTALLATION CHECK
+	AX = 6700h
+	BX = FFFFh
+Return: BX = FFFFh (Arabic/Hebrew MS-DOS not installed)
+	BX = version (e.g. 0101h for Arabic/Hebrew MS-DOS 5.0)
+Note:	This call is made by the SK_HGC.COM TSR for HGC and HGC/RAMFont
+	  graphics adapters to ensure it runs on the correct version of
+	  Arabic or Hebrew MS-DOS.
+	The function is probably implemented in the ARABIC.COM/HEBREW.COM
+	  driver.
+	Arabic/Hebrew versions of MS-DOS 3.3 existed, but no details are
+	  available.
+SeeAlso: AX=67C3h,INT 2F/AX=AD41h
+----------1567C3CX1Bh
+-----------------------
+INT 15h - Arabic/Hebrew MS-DOS 5.0???+ - HGC & HGC/RAMFont support???
+	AX = 67C3h
+	CX = 1Bh
+	CS|DS???:SI -> buffer
+Return: ES:DI -> ???
+	AX = ???
+Program: The SK_HGC.COM TSR is used to support operation of ARABIC.COM/
+	  HEBREW.COM with the Hercules Graphic Card series of video adapters.
+	  It is provided for compatibility with ADOS 3.30/HDOS 3.30 only.
+	  This file must be loaded immediately after ARABIC.COM/HEBREW.COM
+	  to insure correct operation with these devices.
+Notes:	This call is made by the SK_HGC.COM TSR for HGC and HGC/RAMFont
+	  graphics adapters when it has successfully detected an Arabic/Hebrew
+	  issue of MS-DOS via INT15h/6700h/BX=FFFFh to ensure it runs on the
+	  correct version of Arabic or Hebrew MS-DOS.
+	At some unknown offset in the buffer it contains a flag indicating
+	  if a HGC or HGC/RAMFont adapter is present or not.
+	ARABIC/HEBREW does not operate with Monochrome Display Adapters (MDA)
+	  and the Hercules Graphic Card Plus (HGC+). ARABIC/HEBREW does operate
+	  with Hercules Graphic Card (HGC) with a burnt-in ROM/EPROM font (many
+	  HGC cards, even the highly integrated ones, allow for this kind of
+	  user customization), though this is not officially supported.
+	In some pre-1987 IBM XT/AT and compatibles, the Hercules Graphic
+	  Card Plus operates like a MDA card. This hardware limitation
+	  prevents ARABIC/HEBREW from running on this combination of hardware.
+SeeAlso: AX=6700h
+--------b-1568------------------------------------
+INT 15 - HUNTER 16 - REQUEST POWER DOWN
+	AH = 68h
+Desc:	turns off the Hunter 16 if power down is allowed (see AH=69h)
+SeeAlso: AH=69h
+--------b-1569------------------------------------
+INT 15 - HUNTER 16 - CONTROL POWER DOWN AVAILABILITY
+	AH = 69h
+	AL = mode
+	    00h inhibit power down
+	    01h allow power down
+Return: AH = status
+SeeAlso: AH=67h,AH=68h,AH=6Ah
+--------b-156A------------------------------------
+INT 15 - HUNTER 16 - CONTROL SLOW MODE
+	AH = 6Ah
+	AL = mode
+	    00h inhibit Slow mode
+	    01h allow Slow mode
+Return: AH = status
+SeeAlso: AH=69h
+--------b-156B------------------------------------
+INT 15 - HUNTER 16 - GET ROM BIOS VERSION
+	AH = 6Bh
+Return: BH = version number (ASCII)
+	BL = release number (ASCII)
+	CH = major??? release number (ASCII)
+	CL = minor??? release number (ASCII)
+SeeAlso: AH=6Ch
+--------b-156C------------------------------------
+INT 15 - HUNTER 16 - GET SERIAL NUMBER
+	AH = 6Ch
+Return: BL:CX = BCD serial number
+Note:	when shipped, all Hunter 16s have the same Serial Number, but a
+	  different number can be stored (see AH=72h)
+SeeAlso: AH=6Bh,AH=72h
+--------b-156D------------------------------------
+INT 15 - HUNTER 16 - GET EVENT DETAIL
+	AH = 6Dh
+Return: AH = 00h if successful
+	CX:BX = event flags bit 0..31 (see #00494)
+Note:	this function allows testing for events
+SeeAlso: AH=6Eh,AH=6Fh
+
+Bitfields for HUNTER 16 events:
+Bit(s)	Description	(Table 00494)
+ 6	RI received
+ 5	RTC Alarm
+ 4	data received on COM2
+ 3	data received on COM1
+ 2	error on COM2
+ 1	error on COM1
+ 0	PWR button pressed
+--------b-156E------------------------------------
+INT 15 - HUNTER 16 - ENABLE/TRAP EVENT
+	AH = 6Eh
+	AL = Software Interrupt
+	      00h  do not trap event
+	      else trap as software interrupt number AL
+	BH = event number (see AH=6Dh)
+	BL = enable mask
+	    00h disable event
+	    01h enable event
+Return: AH = 00h if successful
+SeeAlso: AH=6Dh,AH=6Fh
+--------b-156F------------------------------------
+INT 15 - HUNTER 16 - ACKNOWLEDGE EVENT
+	AH = 6Fh
+	AL = event number (see AH=6Dh)
+Return: AH = 00h if successful
+Desc:	Acknowledges the event, so the next similar event can be detected
+SeeAlso: AH=6Dh"HUNTER",AH=6Eh
+--------b-1570------------------------------------
+INT 15 - HUNTER 16 - CONTROL SOUND
+	AH = 70h
+	AL = new state
+	    00h disable sound
+	    else enable sound
+Note:	the Husky Hunter 16 is an 8088-based ruggedized laptop.	 Other family
+	  members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
+--------x-157000-----------------------------
+INT 15 - Tandy 1000SL/TL - READ FROM EEPROM
+	AX = 7000h
+	BL = number of word to read (00h-3Fh)
+Return: CF clear if function supported
+	    DX = contents of EEPROM word
+Note:	newer Tandy 1000-series machines use EEPROM instead of CMOS RAM in
+	  the clock chip to store system configuration information
+SeeAlso: AX=7001h
+--------x-157001-----------------------------
+INT 15 - Tandy 1000SL/TL - WRITE TO EEPROM
+	AX = 7001h
+	BL = number of word to read (00h-3Fh)
+	DX = new value for EEPROM word
+Return: CF clear if function supported
+Note:	the EEPROMs are normally written only by the system setup program;
+	  changing the values can badly mess up a Tandy
+SeeAlso: AX=7000h
+----------157002-----------------------------
+INT 15 U - Tandy 1000 Model ??? - GET ROM PAGE
+	AX = 7002h
+Return: AL = ROM page mapped at 0E0000h (0-6 (13?))
+Note:	some Tandy machines have DOS and DeskMate in a 512k paged ROM.	The
+	  BIOS uses this call to determine what ROM page is mapped in the 64k
+	  segment at 0E0000h.
+	the 1000TL has 8 64k ROM pages; page 7 is permanently mapped at
+	  0F0000h.  There may be 16 32k ROM pages on other systems.
+SeeAlso: AX=7003h,INT E0"DeskMate"
+----------157003-----------------------------
+INT 15 U - Tandy 1000 Model ??? - SET ROM PAGE
+	AX = 7003h
+	DL = ROM page to be mapped at 0E0000h (0-6 (13?))
+Return: CF clear if valid ROM page specified
+Note:	Some Tandy machines have DOS and DeskMate in a 512k paged ROM.	The
+	  BIOS uses this call to map ROM pages in the 64k segment at 0E0000h.
+	The 1000TL has 8 64k ROM pages; page 7 is permanently mapped at
+	  0F0000h.  There may be 16 32k ROM pages on other systems.
+SeeAlso: AX=7002h,INT E0"DeskMate"
+--------b-1571------------------------------------
+INT 15 - HUNTER 16 - SELECT POWER UP KEYS
+	AH = 71h
+	BL = column
+	BH = row
+	AL = column switch (00h disable, 01h enable)
+	CL = row switch (00h disable, 01h enable)
+Return: AH = status
+SeeAlso: AH=7Bh,AH=88h
+--------b-157200----------------------------------
+INT 15 - HUNTER 16 - RESET SERIAL NUMBER
+	AX = 7200h
+Return: AH = 00h if successful
+Desc:	reset the serial number to the default serial number present when the
+	  Hunter 16 was shipped
+SeeAlso: AH=6Ch,AH=72h
+--------b-1572------------------------------------
+INT 15 - HUNTER 16 - REDIRECT SERIAL NUMBER
+	AH = 72h
+	AL nonzero
+	DS:BX -> new serial number (6 ASCII digits)
+Return: AH = 00h if successful
+Desc:	install a new serial number
+SeeAlso: AH=6Ch,AX=7200h
+--------b-1573------------------------------------
+INT 15 - HUNTER 16 - GET ORACLE GT POWER LEVEL
+	AH = 73h
+	AL = drive (0: A:, 1: B:)
+Return: AH = status
+	    00h successful
+	    FFh Oracle GT drive not connected
+	AL = power level in percent of maximum (0..100)
+Desc:	get the power remaining in the Oracle GT batteries
+SeeAlso: AH=61h
+--------b-1574------------------------------------
+INT 15 - HUNTER 16 - SET BACKLIGHT POWER UP STATE
+	AH = 74h
+	AL = new level
+	    01h off
+	    02h unchanged
+	    03h change level
+		BL = desired level (00h-7Fh)
+Return: AH = status
+Desc:	select the backlight level to use when the Hunter is next turned on
+SeeAlso: AH=64h,AH=75h,INT 10/AH=64h,INT 10/AH=78h
+--------b-1575------------------------------------
+INT 15 - HUNTER 16 - SET CONTRAST POWER UP STATE
+	AH = 75h
+	AL = new level
+	    01h off
+	    02h unchanged
+	    03h change level
+		BL = desired level (00h-7Fh)
+Return: AH = status
+Desc:	select the LCD contrast level to use when the Hunter is next turned on
+SeeAlso: AH=63h,AH=74h
+--------b-1576------------------------------------
+INT 15 - HUNTER 16 - CONTROL POWER SAVE
+	AH = 76h
+	BX = power save control (see #00495)
+SeeAlso: AH=74h
+
+Bitfields for HUNTER 16 power save control:
+Bit(s)	Description	(Table 00495)
+ 0	power save enabled
+ 1	inhibit power save when waiting for COM1 data
+ 2	inhibit power save when waiting for COM2 data
+ 3	inhibit power save when waiting for data from barcode wand
+ 4	inhibit power up on timer tick
+--------b-1579------------------------------------
+INT 15 - HUNTER 16 - REDIRECT LPT1
+	AH = 79h
+	AL = port to which to redirect (00h COM1, 01h COM2)
+--------b-157A------------------------------------
+INT 15 - HUNTER 16 - INVOKE HOT KEY
+	AH = 7Ah
+Desc:	this function has the same effect as pressing the HOT key
+SeeAlso: AH=7Bh
+--------b-157B------------------------------------
+INT 15 - HUNTER 16 - CONTROL HOT KEY
+	AH = 7Bh
+	AL = 00h prevent HOT key
+	    else allow HOT key
+Desc:	Allow or prevent the HOT key function which is used to examine and
+	  change the Hunter setup
+SeeAlso: AH=71h,AH=7Ah,AH=7Ch
+--------b-157C------------------------------------
+INT 15 - HUNTER 16 - CONTROL HOT KEY POWER OPTION
+	AH = 7Ch
+	AL = 00h prevent HOT key power option
+	    else allow HOT key power option
+Desc:	allow or prevent changing the power options
+SeeAlso: AH=7Bh,AH=7Dh
+--------b-157D------------------------------------
+INT 15 - HUNTER 16 - OVERRIDE LOW POWER TURN OFF
+	AH = 7Dh
+	AL = 00h turn off after 10 warnings
+	    else never turn off
+Desc:	specify whether the Hunter 16 turns off after 10 low power warnings
+SeeAlso: AH=7Ch
+--------b-157E------------------------------------
+INT 15 - HUNTER 16 - CONTROL BATTERY CHANGE FACILITIES (APM)
+	AH = 7Eh
+	AL = 00h do not prompt
+	    else prompt
+Desc:	select whether the user is prompted for the battery state if the
+	  battery cap has been off when the system is turned on
+SeeAlso: AH=7Fh
+--------b-157F------------------------------------
+INT 15 - HUNTER 16 - SET BATTERY TYPE (APM)
+	AH = 7Fh
+	AL = battery type
+	    00h	 non-rechargeable
+	    else rechargeable
+SeeAlso: AH=7Eh
+--------B-1580-------------------------------
+INT 15 C - OS HOOK - DEVICE OPEN (AT,XT286,PS)
+	AH = 80h
+	BX = device ID
+	CX = process ID
+	CF clear
+Return: CF clear if successful
+	    AH = 00h
+	CF set on error
+	    AH = status (see #00496)
+Note:	this function should be hooked by a multitasker which wishes to keep
+	  track of device ownership; the default BIOS handler merely returns
+	  successfully
+SeeAlso: AH=81h,AH=82h
+
+(Table 00496)
+Values for status:
+ 80h	invalid command (PC,PCjr)
+ 86h	function not supported (XT)
+--------b-1580------------------------------------
+INT 15 - HUNTER 16 - GET/SET BATTERY CAPACITY (APM)
+	AH = 80h
+	AL = function
+	    00h get
+		Return: AL = capacity (500mA + AL * 50mA, max 40 = 2500mA)
+	    else set
+		BL = battery capacity (same as AL above)
+SeeAlso: AH=61h"HUNTER",AH=81h"HUNTER"
+--------B-1581-------------------------------
+INT 15 C - OS HOOK - DEVICE CLOSE
+	AH = 81h
+	BX = device ID
+	CX = process ID
+	CF clear
+Return: CF clear if successful
+	    AH = 00h
+	CF set on error
+	    AH = status (see #00496)
+Note:	this function should be hooked by a multitasker which wishes to keep
+	  track of device ownership; the default BIOS handler merely returns
+	  successfully
+SeeAlso: AH=80h,AH=82h
+--------b-1581------------------------------------
+INT 15 - HUNTER 16 - CONTROL POWER OUTPUT
+	AH = 81h
+	AL = new state of power output (00h off, nonzero on)
+Desc:	turn the +5V low power output on or off
+SeeAlso: AH=80h"HUNTER"
+--------B-1582-------------------------------
+INT 15 C - OS HOOK - PROGRAM TERMINATION
+	AH = 82h
+	BX = process ID
+	CF clear
+Return: CF clear if successful
+	    AH = 00h
+	CF set on error
+	    AH = status (see #00496)
+Notes:	closes all devices opened by the given process ID with function 80h
+	this function should be hooked by a multitasker which wishes to keep
+	  track of device ownership; the default BIOS handler merely returns
+	  successfully
+SeeAlso: AH=80h,AH=81h
+--------b-1582------------------------------------
+INT 15 - HUNTER 16 - SOUND OUTPUT
+	AH = 82h
+	DX = length (duration in seconds = DX * 666670 / frequency)
+	BX = pitch (see #00497)
+Desc:	Sound the tone specified in BX for the duration in DX
+SeeAlso: AX=1019h
+
+(Table 00497)
+Values for HUNTER 16 sound pitch:
+BX(dec)	 Note	Frequency	BX(dec)	 Note	Frequency
+  425	G	1568.000	 1515	A	 440.000
+  451	F#	1479.503	 1605	G#	 415.307
+  477	F	1396.900	 1701	G	 392.000
+  506	E	1318.500	 1802	F#	 369.998
+  536	D#	1244.523	 1909	F	 349.230
+  568	D	1174.700	 2022	E	 329.630
+  601	C#	1108.749	 2143	D#	 311.127
+  637	C	1046.500	 2270	D	 293.660
+  675	B	 958.770	 2405	C#	 277.183
+  715	A#	 932.329	 2548	MID C	 261.630
+  758	A	 880.000	 2700	B	 246.940
+  803	G#	 830.609	 2860	A#	 233.081
+  850	G	 783.990	 3030	A	 220.000
+  901	F#	 739.990	 3210	G#	 207.654
+  954	F	 698.460	 3401	G	 196.000
+ 1011	E	 659.260	 3604	F#	 184.996
+ 1071	D#	 622.257	 3818	F	 174.610
+ 1135	D	 587.330	 4045	E	 164.810
+ 1203	C#	 554.365	 4286	D#	 155.560
+ 1274	C	 523.250	 4540	D	 146.830
+ 1350	B	 493.880	 4668	C#	 142.827
+ 1430	A#	 466.162	 4803	C	 138.810
+--------B-1583-------------------------------
+INT 15 - BIOS - SET EVENT WAIT INTERVAL (AT,PS50+)
+	AH = 83h
+	AL = subfunction
+	    00h set interval
+		CX:DX = microseconds to delay
+		ES:BX -> byte whose high bit is to be set at end of interval
+	    01h cancel wait interval
+Return: CF set on error or function already busy
+	    AH = status
+		80h invalid command (PC,PCjr)
+		86h function not supported (XT and later)
+	CF clear if successful
+Notes:	the resolution of the wait period is 977 microseconds on many systems
+	  because many BIOSes use the 1/1024 second fast interrupt from the AT
+	  real-time clock chip which is available on INT 70
+	IBM AT 1984/1/10 BIOS ignores AL and always performs subfunction 00h
+SeeAlso: AH=41h,AH=86h,INT 70,MEM 0040h:0098h,MEM 0040h:009Ch
+--------b-1583------------------------------------
+INT 15 - HUNTER 16 - CONTROL SCREEN SYNCHRONISATION
+	AH = 83h
+	AL = state of LCD window (00h disabled, nonzero enabled)
+Desc:	Enable/disable the facility where the displayed window tracks the
+	  cursor output to keep the focus visible
+--------B-1584-------------------------------
+INT 15 - BIOS - JOYSTICK SUPPORT (XT after 1982/11/8,AT,XT286,PS)
+	AH = 84h
+	DX = subfunction
+	    0000h read joystick switches
+		Return: AL bits 7-4 = switch settings
+	    0001h read positions of joysticks
+		Return: AX = X position of joystick A
+			BX = Y position of joystick A
+			CX = X position of joystick B
+			DX = Y position of joystick B
+Return: CF set on error
+	    AH = status (see #00496)
+	CF clear if successful
+Notes:	if no game port is installed, subfunction 0000h returns AL=00h (all
+	  switches open) and subfunction 0001h returns AX=BX=CX=DX=0000h
+	a 250kOhm joystick typically returns 0000h-01A0h
+SeeAlso: AH=84h"V20-XT-BIOS"
+--------b-1584-------------------------------
+INT 15 - V20-XT-BIOS - JOYSTICK SUPPORT
+	AH = 84h
+	DX = subfunction
+	    0000h read joystick switches
+		Return: AL bits 7-4 = switch settings
+	    other: read positions of joysticks as indicated by bits 0-3
+		Return: AX = X position of joystick A (if DX bit 0 set)
+			BX = Y position of joystick A (if DX bit 1 set)
+			CX = X position of joystick B (if DX bit 2 set)
+			DX = Y position of joystick B (if DX bit 3 set)
+Return: CF set on error
+	    AH = status (see #00496)
+	CF clear if successful
+Program: V20-XT-BIOS is a ROM BIOS replacement with extensions by Peter
+	   Koehlmann / c't magazine
+SeeAlso: AH=84h"PS",INT 10/AH=0Eh/CX=ABCDh
+----------1584--DX0002-----------------------
+INT 15 - AMIGATSR - INSTALLATION CHECK
+	AH = 84h
+	DX = 0002h
+Return: AX = 1234h if installed
+Program: AMIGATSR is a serial-port driver for using an Amiga gamepad on a PC
+SeeAlso: AH=84h/DX=0002h"MULTIJOY"
+----------1584--DX0002-----------------------
+INT 15 - MULTIJOY - INSTALLATION CHECK
+	AH = 84h
+	DX = 0002h
+Return: AX = 4321h if installed
+SeeAlso: AH=84h/DX=0002h"AMIGATSR",AH=84h/DX=0003h"MULTIJOY"
+----------1584--DX0003-----------------------
+INT 15 - MULTIJOY - GET ACTIVE JOYSTICK
+	AH = 84h
+	DX = 0003h
+Return: AX = number of the currently-active joystick device
+	BX = device classification (see #04098)
+SeeAlso: AH=84h/DX=0002h"MULTIJOY"
+ !!! more info to follow
+
+Bitfields for MULTIJOY device classification:
+Bit(s)	Description	(Table 04098)
+ 15	device connected and ready
+ 14	no buttons (overrides bits 12-9)
+ 13	no axes (overrides bits 8-5)
+ 12-9	number of buttons, less one
+ 8-5	number of axes, less one
+ 4	digital device rather than analog
+ 3-0	device type
+	0000 keyboard emulating joystick
+	0001 gamepad
+	0010 joystick
+	0011 steering wheel
+	0100 flight yoke
+	0101 mouse emulating joystick
+	0110 trackball emulating joystick
+	0111 GlidePoint (touchpad) emulating joystick
+	1000 touchscreen emulating joystick
+	1001 steering wheel
+	1010 light pen emulating joystick
+	1011 speech recognition emulating joystick
+	1100 TV remote emulating joystick
+	1101 network/Internet remote control
+	1110 PC software-controlled (demo mode, etc.)
+	1111 other device
+----------1584--DX0004-----------------------
+INT 15 - MULTIJOY - SELECT JOYSTICK
+	AH = 84h
+	DX = 0004h
+	BX = number of the joystick device to make active
+Return: ???
+SeeAlso: AH=84h/DX=0003h"MULTIJOY"
+--------b-158400----------------------------------
+INT 15 - HUNTER 16 - GET DISKETTE PORT
+	AX = 8400h
+	BH = Drive (0: A:, 1: B:)
+Return: AL = Port (0: COM1, >0: COM2)
+Desc:	return the COM port used for the floppy drive
+SeeAlso: AX=8401h
+--------b-158401----------------------------------
+INT 15 - HUNTER 16 - SET DISKETTE PORT
+	AX = 8401h
+	BH = Drive (0: A:, 1: B:)
+	BL = Port (0: COM1, >0: COM2)
+Desc:	set the COM port used for the floppy drive
+SeeAlso: AX=8400h
+--------B-1585-------------------------------
+INT 15 C - OS HOOK - SysReq KEY ACTIVITY (AT,PS)
+	AH = 85h
+	AL = SysReq key action (00h pressed, 01h released)
+	CF clear
+Return: CF clear if successful
+	    AH = 00h
+	CF set on error
+	    AH = status (see #00496)
+Notes:	called by keyboard decode routine
+	the default handler simply returns successfully; programs which wish
+	  to monitor the SysReq key must hook this call
+	the SysReq key is often labeled SysRq
+SeeAlso: INT 09
+--------b-158500----------------------------------
+INT 15 - HUNTER 16 - RESTORE POWER MENU (APM)
+	AX = 8500h
+Desc:	restore the standard power menu
+SeeAlso: AX=8501h"HUNTER"
+--------b-158501----------------------------------
+INT 15 - HUNTER 16 - SET POWER MENU (APM)
+	AX = 8501h
+	BL = user software interrupt number
+Desc:	install an alternate power menu routine
+SeeAlso: AX=8500h"HUNTER"
+--------B-1586-------------------------------
+INT 15 - BIOS - WAIT (AT,PS)
+	AH = 86h
+	CX:DX = interval in microseconds
+Return: CF clear if successful (wait interval elapsed)
+	CF set on error or AH=83h wait already in progress
+	    AH = status (see #00496)
+Note:	the resolution of the wait period is 977 microseconds on many systems
+	  because many BIOSes use the 1/1024 second fast interrupt from the AT
+	  real-time clock chip which is available on INT 70; because newer
+	  BIOSes may have much more precise timers available, it is not
+	  possible to use this function accurately for very short delays unless
+	  the precise behavior of the BIOS is known (or found through testing)
+SeeAlso: AH=41h,AH=83h,INT 1A/AX=FF01h,INT 70
+--------b-1586------------------------------------
+INT 15 - HUNTER 16 - GET/SET SCREEN ATTRIBUTE TABLE
+	AH = 86h
+	AL = function (00h get, nonzero set)
+	BX = 1234h
+	DS:SI -> 256-byte Attribute buffer
+Note:	In text modes each character has its attribute byte XOR'd with the
+	  corresponding byte in the attribute table.  If the attribute is 15,
+	  15 is XOR'd with Table[15]
+--------B-1587-------------------------------
+INT 15 - SYSTEM - COPY EXTENDED MEMORY
+	AH = 87h
+	CX = number of words to copy (max 8000h)
+	ES:SI -> global descriptor table (see #00499)
+Return: CF set on error
+	CF clear if successful
+	AH = status (see #00498)
+Notes:	copy is done in protected mode with interrupts disabled by the default
+	  BIOS handler; many 386 memory managers perform the copy with
+	  interrupts enabled
+	on the PS/2 30-286 & "Tortuga" this function does not use the port 92h
+	  for A20 control, but instead uses the keyboard controller (8042).
+	  Reportedly this may cause the system to crash when access to the
+	  8042 is disabled in password server mode (see also PORT 0064h,#P0398)
+	this function is incompatible with the OS/2 compatibility box
+SeeAlso: AH=88h,AH=89h,INT 1F/AH=90h
+
+(Table 00498)
+Values for extended-memory copy status:
+ 00h	source copied into destination
+ 01h	parity error
+ 02h	interrupt error
+ 03h	address line 20 gating failed
+ 80h	invalid command (PC,PCjr)
+ 86h	unsupported function (XT,PS30)
+
+Format of global descriptor table:
+Offset	Size	Description	(Table 00499)
+ 00h 16 BYTEs	zeros (used by BIOS)
+ 10h	WORD	source segment length in bytes (2*CX-1 or greater)
+ 12h  3 BYTEs	24-bit linear source address, low byte first
+ 15h	BYTE	source segment access rights (93h)
+ 16h	WORD	(286) zero
+		(386+) extended access rights and high byte of source address
+ 18h	WORD	destination segment length in bytes (2*CX-1 or greater)
+ 1Ah  3 BYTEs	24-bit linear destination address, low byte first
+ 1Dh	BYTE	destination segment access rights (93h)
+ 1Eh	WORD	(286) zero
+		(386+) extended access rights and high byte of destin. address
+ 20h 16 BYTEs	zeros (used by BIOS to build CS and SS descriptors)
+--------b-1587------------------------------------
+INT 15 - HUNTER 16 - SET INT 72h VECTOR
+	AH = 87h
+	DS:DX = new service routine
+Desc:	set the INT 72h vector which is called in 2 cases:
+	  - when the machine is about to turn off or reboot, INT 72h is called
+	    with AH=0
+	  - when the machine is powering up INT 72h is called with AH=01h
+Note:	the actual INT 72h vector must also be changed with INT 21/AH=25h
+--------B-1588-------------------------------
+INT 15 - SYSTEM - GET EXTENDED MEMORY SIZE (286+)
+	AH = 88h
+Return: CF clear if successful
+	    AX = number of contiguous KB starting at absolute address 100000h
+	CF set on error
+	    AH = status
+		80h invalid command (PC,PCjr)
+		86h unsupported function (XT,PS30)
+Notes:	TSRs which wish to allocate extended memory to themselves often hook
+	  this call, and return a reduced memory size.	They are then free to
+	  use the memory between the new and old sizes at will.
+	the standard BIOS only returns memory between 1MB and 16MB; use AH=C7h
+	  for memory beyond 16MB
+	not all BIOSes correctly return the carry flag, making this call
+	  unreliable unless one first checks whether it is supported through
+	  a mechanism other than calling the function and testing CF
+	Due to applications not dealing with more than 24-bit descriptors
+	  (286), Windows 3.0 has problems when this function reports more
+	  than 15 MB. Some releases of HIMEM.SYS are therefore limited to use
+	  only 15 MB, even when this function reports more.
+SeeAlso: AH=87h,AH=8Ah"Phoenix",AH=C7h,AX=DA88h,AX=E801h,AX=E820h
+--------b-1588------------------------------------
+INT 15 - HUNTER 16 - GET POWER UP KEYS
+	AH = 88h
+Return: AH = 00h
+	BX = column
+	CL = row
+SeeAlso: AH=71h
+--------B-1589-------------------------------
+INT 15 - SYSTEM - SWITCH TO PROTECTED MODE
+	AH = 89h
+	BL = interrupt number of IRQ0 (IRQ1-7 use next 7 interrupts)
+	BH = interrupt number of IRQ8 (IRQ9-F use next 7 interrupts)
+	ES:SI -> GDT for protected mode (see #00500)
+Return: CF set on error
+	   AH = FFh  error enabling address line 20
+	CF clear if successful
+	   AH = 00h
+	   in protected mode at specified address
+	   BP may be destroyed; all segment registers change
+Notes:	BL and BH must be multiples of 8
+	the protected-mode CS must reference the same memory as the CS this
+	  function is called from because execution continues with the address
+	  following the interrupt call
+SeeAlso: AH=87h,AH=88h,INT 67/AX=DE0Ch
+
+Format of BIOS switch-to-protected-mode Global Descriptor Table:
+Offset	Size	Description	(Table 00500)
+ 00h  8 BYTEs	null descriptor (initialize to zeros)
+ 08h  8 BYTEs	GDT descriptor (see #00501)
+ 10h  8 BYTEs	IDT descriptor
+ 18h  8 BYTEs	DS descriptor
+ 20h  8 BYTEs	ES
+ 28h  8 BYTEs	SS
+ 30h  8 BYTEs	CS
+ 38h  8 BYTEs	uninitialized, used to build descriptor for BIOS CS
+
+Format of segment descriptor table entry:
+Offset	Size	Description	(Table 00501)
+ 00h	WORD	segment limit, low word
+ 02h  3 BYTEs	segment base address, low 24 bits
+ 05h	BYTE	access mode (see #00502)
+ 06h	BYTE	386+ extended access mode (see #00505)
+ 07h	BYTE	386+ segment base address, high 8 bits
+SeeAlso: #00500,INT 2C/AX=0002h,INT 31/AX=0009h
+
+Bitfields for segment descriptor table access mode field:
+Bit(s)	Description	(Table 00502)
+ 3-0	segment type (see #00503,#00504)
+ 4	descriptor type (1 = application, 0 = system)
+ 6-5	descriptor privilege level
+ 7	segment is present in RAM
+SeeAlso: #00501,#00505
+
+(Table 00503)
+Values for system segment descriptor type:
+ 0	reserved
+ 1	available 16-bit TSS
+ 2	LDT
+ 3	busy 16-bit TSS
+ 4	16-bit call gate
+ 5	task gate
+ 6	16-bit interrupt gate
+ 7	16-bit trap gate
+ 8	reserved
+ 9	available 32-bit TSS
+ 10	reserved
+ 11	busy 32-bit TSS
+ 12	32-bit call gate
+ 13	reserved
+ 14	32-bit interrupt gate
+ 15	32-bit trap gate
+SeeAlso: #00502,#00504
+
+Bitfields for application segment descriptor type:
+Bit(s)	Description	(Table 00504)
+ 3	code/data
+	0 date
+	1 code
+---data segments---
+ 2	expand down
+ 1	writeable
+---code segments---
+ 2	conforming
+ 1	readable
+------
+ 0	accessed
+SeeAlso: #00502,#00503
+
+Bitfields for 386+ segment descriptor table extended access mode field:
+Bit(s)	Description	(Table 00505)
+ 3-0	high 4 bits of segment limit
+ 4	available
+ 5	reserved (0)
+ 6	default operation size (1 = 32 bits, 0 = 16 bits)
+ 7	granularity (1 = 4K, 0 = byte)
+SeeAlso: #00501,#00502,#02557
+--------b-158900----------------------------------
+INT 15 - HUNTER 16 - GET POWER MODE
+	AX = 8900h
+Return: AH = 00h
+	BL = current power mode
+	    00h Standard Power Mode (SPM)
+	    01h Advanced Power Mode (APM)
+SeeAlso: AX=8901h
+--------b-158901----------------------------------
+INT 15 - HUNTER 16 - SET POWER MODE
+	AX = 8901h
+	BL = new mode
+	    00h Standard Power Mode (SPM)
+	    01h Advanced Power Mode (APM)
+Return: AH = 00h
+SeeAlso: AX=8900h
+--------b-158A------------------------------------
+INT 15 - HUNTER 16 - CONTROL POWER INPUT (SPM)
+	AH = 8Ah
+	AL = new state of Power Input (00h disabled, nonzero enabled)
+	SI = 1234h
+	DI = 5678h
+Return: AH = status
+	    00h success
+	    FFh failure
+Desc:	Enable or disable Power Input. When Power Input is disabled the AC
+	  adapter will neither charge the batteries nor supply power to the
+	  Hunter 16. Disable Power Input if using Alkaline batteries.
+--------b-158A-------------------------------
+INT 15 - Phoenix BIOS v4.0 - GET BIG MEMORY SIZE
+	AH = 8Ah
+Return: DX:AX = extended memory size in K
+SeeAlso: AH=88h,AX=E801h,AX=E820h
+--------b-158B------------------------------------
+INT 15 - HUNTER 16 - GET/SET CHARGER TEMPERATURE OVERRIDE
+	AH = 8Bh
+	AL = function
+	    00h get
+		Return:	BH = Maximum charging temperature
+				Temp = -20 + (n * 0.63) degrees Centigrade
+			BL = Minimum charging temperature
+	    else set
+		BH = maximum charging temperature (as above)
+		BL = minimum charging temperature (as above)
+Return: AH = status
+	    00h success
+	    FFh failure
+Desc:	get/set the temperature interval within which the charger should
+	  operate
+--------b-158C------------------------------------
+INT 15 - HUNTER 16 - GET/SET POWER SAVE ENTRY FLAG
+	AH = 8Ch
+	AL = function
+	    00h get
+		Return: BX = which operations disable power save (see #00506)
+	    else set
+		BX = which operations should disable power save (see #00506)
+SeeAlso: AH=8Dh
+
+Bitfields for HUNTER 16 operations disabling power save:
+Bit(s)	Description	(Table 00506)
+ 0	INT 10h prevents power save
+ 1	INT 13h prevents power save
+ 2	INT 14h prevents power save
+ 3	INT 15h prevents power save
+ 4	INT 1Ah prevents power save
+ 5	INT 21h prevents power save
+ 6	direct write to video RAM prevents power save
+ 7	access to 8250 UART prevents power save
+ 8	access to 8253 (Sound) prevents power save
+--------b-158D------------------------------------
+INT 15 - HUNTER 16 - GET/SET BOOST CHARGE (SPM)
+	AH = 8Dh
+	AL = function
+	    00h get
+		Return: AL = Fast Charge state (00h prevented, else allowed)
+	    nonzero set
+		BH = Fast Charge state (00h prevent, nonzero allow)
+Return: AH = status
+	    00h success
+	    FFh failure
+Desc:	control whether Fast Charging (200ma rather than 70ma) is allowed
+SeeAlso: AH=8Ch
+--------B-1590-------------------------------
+INT 15 - OS HOOK - DEVICE BUSY (AT,PS)
+	AH = 90h
+	AL = device type (see #00507)
+	ES:BX -> request block for type codes 80h through BFh
+	CF clear
+Return: CF set if wait time satisfied
+	CF clear if driver must perform wait
+	    AH = 00h
+Notes:	type codes are allocated as follows:
+	  00-7F non-reentrant devices; OS must arbitrate access
+	  80-BF reentrant devices; ES:BX points to a unique control block
+	  C0-FF wait-only calls, no complementary INT 15/AH=91h call
+	floppy and hard disk BIOS code uses this call to implement a timeout;
+	  for device types 00h and 01h, a return of CF set means that the
+	  timeout expired before the disk responded.
+	this function should be hooked by a multitasker to allow other tasks
+	  to execute while the BIOS is waiting for I/O completion; the default
+	  handler merely returns with AH=00h and CF clear
+SeeAlso: AH=91h,INT 13/AH=00h,INT 17/AH=00h,INT 1A/AH=83h
+
+(Table 00507)
+Values for device type:
+ 00h	disk
+ 01h	diskette
+ 02h	keyboard
+ 03h	PS/2 pointing device
+ 21h	waiting for keyboard input (Phoenix BIOS)
+ 80h	network
+ FBh	digital sound (Tandy)
+ FCh	disk reset (PS)
+ FDh	diskette motor start
+ FEh	printer
+--------B-1591-------------------------------
+INT 15 - OS HOOK - DEVICE POST (AT,PS)
+	AH = 91h
+	AL = device type (see #00507)
+	ES:BX -> request block for type codes 80h through BFh
+	CF clear
+Return: AH = 00h
+Note:	this function should be hooked by a multitasker to allow other tasks
+	  to execute while the BIOS is waiting for I/O completion; the default
+	  handler merely returns with AH=00h and CF clear
+SeeAlso: AH=90h
+--------B-1592-------------------------------
+INT 15 - IBM SurePath BIOS - Officially "Private" Function
+	AH = 92h
+SeeAlso: AH=07h"IBM",AH=3Eh"IBM"
+--------B-15A0-------------------------------
+INT 15 - IBM SurePath BIOS - ACCESS LOADABLE-ABIOS SIGNATURE
+	AH = A0h
+	AL = function
+	    00h get loadable-ABIOS signature
+		Return: BL = signature value
+			    00h loadable-ABIOS prompting not required
+			    A1h loadable-ABIOS prompting is required
+	    01h write loadable-ABIOS signature
+		BL = new signature value
+		    00h loadable-ABIOS prompting not required
+		    A1h loadable-ABIOS prompting is required
+Return: CF clear if successful
+	CF set on error
+	AH = status
+	    00h successful
+	    01h invalid subfunction
+	    02h unable to read/write signature
+	    86h function not supported
+Note:	IBM classifies this function as optional
+SeeAlso: AH=08h"IBM"
+--------x-15A100-----------------------------
+INT 15 U - AMI PCI BIOS - SET ??? FLAG
+	AX = A100h
+Return: AX = 0000h
+	CF clear
+	BX,CX,DI may be destroyed
+Desc:	sets bit 7 of CMOS RAM location 37h and updates the CMOS checksum in
+	  locations 3Eh and 3Fh
+Notes:	in the examined version of the BIOS, nonzero values in AL cause it to
+	  drop through to checking the next possible value of AH, i.e. only
+	  subfunction 00h is supported
+	also supported by Dell XPS P90 and IBM PS/PV 6384, which also use
+	  AMI BIOSes
+--------B-15AB-------------------------------
+INT 15 - IBM SurePath BIOS - Officially "Private" Function
+	AH = ABh
+SeeAlso: AH=07h"IBM",AH=3Eh"IBM"
+----------15B001CX5354-----------------------
+INT 15 - Stac STACKER - INSTALLATION CHECK
+	AX = B001h
+	CX = 5354h ('ST')
+	DX = 4143h ('AC')
+Return: AX = 4F4Bh ('OK') if installed
+Note:	this function is encapsulated in Stac's STACKER.LIB C library; it is
+	  called by Novell DOS 7+ NWCACHE v1.01, which makes use of this
+	  library
+--------n-15BA10-----------------------------
+INT 15 - HP OmniShare - Pen Driver - REPORT PEN CONTROL AREA EVENT
+	AX = BA10h
+	BL = event
+	   00h the pen left control areas
+	   01h the pen entered the Brightness- area
+	   02h the pen entered the Brightness+ area
+	   03h the pen entered the Contrast- area
+	   04h the pen entered the Contrast+ area
+Return: CF clear if successfully processed
+	CF set on error (function not supported, ie. not an OmniShare BIOS)
+Note:	The pen driver is responsible for detecting when the pen enters and
+	  leaves control areas of the OmniShare tablet, and notifying the BIOS.
+	The BIOS manages the events, including the autorepetition, and sets
+	  the status LEDs.
+SeeAlso: AX=BA20h,AX=BA13h
+--------n-15BA11-----------------------------
+INT 15 - HP OmniShare - Pen Driver - SET THE COMMUNICATION LED STATE
+	AX = BA11h
+	BL = new LED state (00h steady, 01h flashing)
+Return: CF clear if successful
+	CF set on error
+Note:	this function is for use by communication software to give visual
+	  feedback of active communications even if the display is in standby
+	  mode.
+SeeAlso: AX=BA10h,AX=BA24h
+--------n-15BA12-----------------------------
+INT 15 - HP OmniShare - Pen Driver - STORE PEN BATTERY CHARGE
+	AX = BA12h
+	BL = new battery state (00h good, 01h low charge)
+Return: CF set on error
+	CF clear if successfully stored in CMOS
+Note:	The last report will be displayed by the Power-On Self Test the next
+	  time the OmniShare boots.  This allows something meaningful to be
+	  reported even if the pen is not detected during the POST.
+SeeAlso: AX=BA13h
+--------n-15BA13-----------------------------
+INT 15 - HP OmniShare - Pen Driver - GET PEN BATTERY CHARGE
+	AX = BA13h
+Return: CF clear if successful
+	    BL = pen battery state (00h good, 01h low charge)
+	CF set on error
+Note:	returns the last value set by AX=BA12h.
+SeeAlso: AX=BA12h
+--------p-15BA20-----------------------------
+INT 15 - HP OmniShare - STANDBY.COM - INSTALLATION CHECK
+	AX = BA20h
+Return: CF clear if successful (installed)
+	CF set on error (not installed)
+Notes:	The display controller can enter a standby mode after a given timeout,
+	  to conserve power or (for the OmniShare) to increase the life of
+	  the backlight.
+	A side effect of standby mode is that the communications LED turns on
+	  automatically when the display is in standby mode.  This is done in
+	  hardware, and is intended to show that the unit is still on.
+SeeAlso: AX=BA10h,AX=BA20h,AX=BA22h,AX=BA24h,AX=BA26h
+--------p-15BA21-----------------------------
+INT 15 - HP OmniShare - STANDBY.COM - SET STANDBY DURATION
+	AX = BA21h
+	BL = new timeout before standby mode in minutes (01h-0Fh)
+	    00h to disable automatic switch to standby mode
+Return: CF clear if successful
+	CF set on error (function not supported)
+Note:	The actual timeout with a GD6205 controller is ((N*64)-32) seconds,
+	  instead of (N*60) seconds as documented.
+SeeAlso: AX=BA20h,AX=BA22h
+--------p-15BA22-----------------------------
+INT 15 - HP OmniShare - STANDBY.COM - GET STANDBY DURATION
+	AX = BA22h
+Return: CF clear if successful
+	   BL = standy duration in minutes (01h-0Fh), or 00h if disabled
+	CF set on error (function not supported)
+Note:	The actual timeout with a GD6205 controller is ((N*64)-32) seconds,
+	  instead of (N*60) seconds as documented.
+SeeAlso: AX=BA20h,AX=BA21h
+--------p-15BA23-----------------------------
+INT 15 - HP OmniShare - STANDBY.COM - TURN ON THE SCREEN IMMEDIATELY
+	AX = BA23h
+Return: CF clear if successful
+	CF set on error
+SeeAlso: AX=BA11h,AX=BA20h,AX=BA24h
+--------p-15BA24-----------------------------
+INT 15 - HP OmniShare - STANDBY.COM - TURN OFF THE SCREEN IMMEDIATELY
+	AX = BA24h
+Return: CF clear if successful
+	CF set on error
+Note:	This function is not implemented yet. Reserved for future versions
+	  of the OmniShare.
+SeeAlso: AX=BA11h,AX=BA20h,AX=BA23h
+--------p-15BA25-----------------------------
+INT 15 - HP OmniShare - STANDBY.COM - PREPARE FOR UNINSTALL
+	AX = BA25h
+Return: CF clear if successful
+	    AX = 25BAh
+	    BX = PSP of STANDBY.COM resident portion
+	    DX:CX -> previous INT 15 handler
+	CF set on error
+Note:	This function is used internally by the STANDBY.COM /u option, and
+	  should not be used by application programs.
+SeeAlso: AX=BA20h
+--------p-15BA26-----------------------------
+INT 15 - HP OmniShare - STANDBY.COM - IS THE DISPLAY IN STANDBY MODE?
+	AX = BA26h
+Return: CF clear if successful
+	    AL	= display state (00h active, 01h in standby mode)
+	CF set on error (function not supported)
+SeeAlso: AX=BA20h,AX=BA23h
+--------p-15BA27-----------------------------
+INT 15 - HP OmniShare - STANDBY.COM - RESERVED FUNCTIONS
+	AX = BA27h to BA2Fh
+Desc:	reserved for future use
+--------b-15BC-------------------------------
+INT 15 - Phoenix 386 BIOS - DETERMINE CPU SPEED FOR DELAY LOOPS
+	AH = BCh
+Return: CF clear
+	(Phoenix 1.10 10a) BYTE 0040h:00B0h set to delay loop count
+	(Dell 4xxDE BIOS A11) WORD 0040h:00ECh set to delay loop count
+Note:	this function reads system timer channel 0 twice, then does
+	  calculations on the returned values to determine the delay loop
+	  counter needed by the BIOS for beeps and floppy timeouts
+SeeAlso: AX=2305h,MEM 0040h:00B0h
+--------E-15BF00-----------------------------
+INT 15 - Rational Systems DOS/16M - ???
+	AX = BF00h
+	???
+Return: ???
+Note:	under DESQview/X 1.02 DVDOS4GX.DVR, this call is identical to AX=BF02h
+SeeAlso: AX=BF02h
+--------E-15BF01-----------------------------
+INT 15 - Rational Systems DOS/16M - ???
+	AX = BF01h
+	???
+Return: ???
+Notes:	under DESQview/X 1.02 DVDOS4GX.DVR, this call is identical to AX=BF02h
+	called by DOS/4GW
+SeeAlso: AX=BF00h,AX=BF02h
+--------E-15BF02DX0000-----------------------
+INT 15 - Rational Systems DOS/16M - INSTALLATION CHECK
+	AX = BF02h
+	DX = 0000h
+Return: DX = nonzero if installed
+	    DX:SI -> XBRK structure (see #00508)
+Note:	this function is also supported by DOS/4G
+SeeAlso: AX=BF01h,AX=BFDCh,AX=BFDEh/BX=0000h
+SeeAlso: INT 21/AH=FFh/DH=0Eh,INT 2F/AH=A1h,INT 2F/AX=F100h,INT 2F/AX=FBA1h
+
+Format of DOS/16M XBRK structure:
+Offset	Size	Description	(Table 00508)
+ 00h	DWORD	linear address of first available byte
+ 04h	DWORD	linear address of last available byte + 1 ???
+ 08h	DWORD	real-mode address of XBRK structure???
+ 0Ch	DWORD	???
+ 10h  2 BYTEs	???
+ 12h	WORD	segment of ???
+ 14h  8 BYTEs	???
+ 1Ch 512 BYTEs	protected-mode IDT
+21Ch  N BYTEs	protected-mode GDT
+--------E-15BF03-----------------------------
+INT 15 - Rational Systems DOS/4GW - UNINSTALL???
+	AX = BF03h
+	BX = PSP segment of extender
+	???
+Return: ???
+Note:	if BX is not the PSP segment of the extender, it passes the call down
+	  the INT 15 chain; this allows nested instances of the extender
+SeeAlso: AX=BF06h
+--------E-15BF04-----------------------------
+INT 15 - Rational Systems DOS/4GW - ???
+	AX = BF04h
+	BX = PSP segment of extender
+Return: nothing???
+Notes:	if BX is not the PSP segment of the extender, it passes the call down
+	  the INT 15 chain; this allows nested instances of the extender
+	grabs INT 2Fh and installs handlers for INT 2F/AX=1605h-1607h
+SeeAlso: INT 2F/AX=1607h/BX=22C0h
+--------E-15BF05-----------------------------
+INT 15 - Rational Systems DOS/4GW - INITIALIZE PROTECTED-MODE INTERFACE
+	AX = BF05h
+	BX = PSP segment of extender
+Return: nothing???
+Notes:	if BX is not the PSP segment of the extender, it passes the call down
+	  the INT 15 chain; this allows nested instances of the extender
+	calls INT 67/AX=DE01h if ???
+--------E-15BF06-----------------------------
+INT 15 - Rational Systems DOS/4GW - ???
+	AX = BF06h
+	BX = PSP segment of extender
+	???
+Return: ???
+Note:	if BX is not the PSP segment of the extender, it passes the call down
+	  the INT 15 chain; this allows nested instances of the extender
+SeeAlso: AX=BF03h
+--------E-15BFDCDX0000-----------------------
+INT 15 - Rational Systems DOS/4GW - INSTALLATION CHECK
+	AX = BFDCh
+	DX = 0000h
+	SI = 0000h
+Return: DX = nonzero if installed
+	    DX:SI -> XBRK structure (see #00508)
+SeeAlso: AX=BF02h
+--------E-15BFDEBX0000-----------------------
+INT 15 - DESQview/X - DVDOS4GX.DVR - INSTALLATION CHECK
+	AX = BFDEh
+	BX = 0000h
+Return: AX = ??? (0003h)
+	BX = FFFFh
+SeeAlso: AX=BF02h
+--------E-15BFDEBX0001-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET PROCESS MANAGER NAME
+	AX = BFDEh
+	BX = 0001h
+Return: BX = 0000h (success)
+	CX:DX -> name of process manager executable
+SeeAlso: AX=BFDEh/BX=0000h
+--------E-15BFDEBX0002-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - SET ???
+	AX = BFDEh
+	BX = 0002h
+	CX:DX -> ???
+Return: BX = 0000h (success)
+SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=0003h
+--------E-15BFDEBX0003-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
+	AX = BFDEh
+	BX = 0003h
+Return: BX = 0000h (success)
+	CX:DX -> ???
+SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=0002h
+--------E-15BFDEBX0004-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
+	AX = BFDEh
+	BX = 0004h
+	CL = ???
+Return: BX = 0000h (success)
+	CX:DX -> XBRK structure (see #00508)
+SeeAlso: AX=BFDEh/BX=0000h
+--------E-15BFDEBX0005-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
+	AX = BFDEh
+	BX = 0005h
+	CX = new value for ???
+Return: BX = 0000h (success)
+	AX = old value of ???
+	DS:SI -> ??? (if AX nonzero on return)
+	ES:DI -> ??? (if AX zero on return)
+Note:	called by DOS4GW.EXE
+SeeAlso: AX=BFDEh/BX=0000h
+--------E-15BFDEBX0006-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
+	AX = BFDEh
+	BX = 0006h
+Return: BX = 0000h (success)
+	AH = interrupt number??? (BEh)
+	CX:DX = ???
+SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=0007h,INT BE"DESQview"
+--------E-15BFDEBX0007-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - SET ???
+	AX = BFDEh
+	BX = 0007h
+	CX:DX = ???
+Return: BX = 0000h (success)
+SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=0006h
+--------E-15BFDEBX0008-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
+	AX = BFDEh
+	BX = 0008h
+	CX = segment of ???
+	DS = ???
+Return: BX = status
+	    0000h successful
+		AL = ??? (80h or C0h)
+		DX = ??? (0603h) if AL=C0h
+	    0001h failed
+		AX = 0000h
+Note:	called by DOS4GW.EXE
+SeeAlso: AX=BFDEh/BX=0000h
+--------E-15BFDEBX0009-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET PROTECTED MODE PROGRAM LOADER
+	AX = BFDEh
+	BX = 0009h
+Return: BX = 0000h (success)
+	CX:DX -> full pathname to LOAD32.EXP
+SeeAlso: AX=BFDEh/BX=0000h
+--------E-15BFDEBX000A-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - DECREMENT ???
+	AX = BFDEh
+	BX = 000Ah
+Return: BX = 0000h (success)
+	AX = new value of ??? counter
+Notes:	also resets a variety of values if the counter goes negative
+	called by DOS4GW.EXE
+SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=000Bh
+--------E-15BFDEBX000B-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - INCREMENT ???
+	AX = BFDEh
+	BX = 000Bh
+Return: AX = new value of ??? counter
+Note:	called by DOS4GW.EXE
+SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=000Ah
+--------E-15BFDEBX000C-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
+	AX = BFDEh
+	BX = 000Ch
+	CL = ???
+	    00h
+	    nonzero
+Return: ???
+SeeAlso: AX=BFDEh/BX=0000h
+--------E-15BFDEBX000D-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
+	AX = BFDEh
+	BX = 000Dh
+	???
+Return: ???
+SeeAlso: AX=BFDEh/BX=0000h
+--------E-15BFDEBX000E-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
+	AX = BFDEh
+	BX = 000Eh
+	DX:CX -> ???
+Return: AX = segment of handle for calling task
+	BX = ??? (probably destroyed)
+	DX:CX -> ???
+SeeAlso: AX=BFDEh/BX=0000h,AX=BFDEh/BX=000Fh,AX=BFDEh/BX=0013h
+--------E-15BFDEBX000F-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - ???
+	AX = BFDEh
+	BX = 000Fh
+Return: AX = segment of handle for calling task
+	BX = ??? (probably destroyed)
+	DX:CX -> ???
+Note:	identical to AX=BFDEh/BX=000Eh with CX:DX = 0000h:0000h
+SeeAlso: AX=BFDEh/BX=000Eh,AX=BFDEh/BX=0010h
+--------E-15BFDEBX0010-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET TASK HANDLE
+	AX = BFDEh
+	BX = 0010h
+Return: AX = segment of caller's task handle
+	BX destroyed
+SeeAlso: AX=BFDEh/BX=000Fh
+--------E-15BFDEBX0011-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
+	AX = BFDEh
+	BX = 0011h
+Return: CX = code segment of DVDOS4GX.DVR
+	BX = ??? (0004h)
+SeeAlso: AX=BFDEh/BX=0000h
+--------E-15BFDEBX0012-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
+	AX = BFDEh
+	BX = 0012h
+Return: DX = code segment of DVDOS4GX.DVR
+	BX = ??? (012Ch)
+	CX = ??? (0006h)
+SeeAlso: AX=BFDEh/BX=0000h
+--------E-15BFDEBX0013-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
+	AX = BFDEh
+	BX = 0013h
+Return: DX:CX -> ???
+SeeAlso: AX=BFDEh/BX=000Eh
+--------E-15BFDEBX0014-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - LOCK ??? MAILBOX
+	AX = BFDEh
+	BX = 0014h
+	CX = index of ??? mailbox
+		(0000h-0004h valid, but no range checking done)
+Return: AX,BX destroyed
+SeeAlso: AX=BFDEh/BX=0015h,AX=BFDEh/BX=0017h
+--------E-15BFDEBX0015-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - UNLOCK ??? MAILBOX
+	AX = BFDEh
+	BX = 0015h
+	CX = index of ??? mailbox
+		(0000h-0004h valid, but no range checking done)
+Return: AX,BX destroyed
+SeeAlso: AX=BFDEh/BX=0014h,AX=BFDEh/BX=0016h
+--------E-15BFDEBX0016-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - CHECK IF ??? MAILBOX OWNED
+	AX = BFDEh
+	BX = 0016h
+	CX = index of ??? mailbox
+		(0000h-0004h valid, but no range checking done)
+Return: AX = status
+	    0000h no one owns mailbox
+	    0001h mailbox has an owner
+	BX destroyed
+SeeAlso: AX=BFDEh/BX=0015h,AX=BFDEh/BX=0017h
+--------E-15BFDEBX0017-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ??? MAILBOX OWNER
+	AX = BFDEh
+	BX = 0017h
+	CX = index of ??? mailbox
+		(0000h-0004h valid, but no range checking done)
+Return: AX = segment of mailbox owner's handle
+	BX = segment of caller's task handle
+SeeAlso: AX=BFDEh/BX=0015h,AX=BFDEh/BX=0016h
+--------E-15BFDEBXFFFD-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ???
+	AX = BFDEh
+	BX = FFFDh
+Return: CX:DX = ???
+SeeAlso: AX=BFDEh/BX=FFFEh
+--------E-15BFDEBXFFFE-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - SET ???
+	AX = BFDEh
+	BX = FFFEh
+	CX:DX = ???
+SeeAlso: AX=BFDEh/BX=FFFDh
+--------E-15BFDEBXFFFF-----------------------
+INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - NOP
+	AX = BFDEh
+	BX = FFFFh
+SeeAlso: AX=BFDEh/BX=0000h
+--------B-15C0-------------------------------
+INT 15 - SYSTEM - GET CONFIGURATION (XT >1986/1/10,AT mdl 3x9,CONV,XT286,PS)
+	AH = C0h
+Return: CF set if BIOS doesn't support call
+	CF clear on success
+	    ES:BX -> ROM table (see #00509)
+	AH = status
+	    00h successful
+		The PC XT (since 1986/01/10), PC AT (since 1985/06/10), the
+		  PC XT Model 286, the PC Convertible and most PS/2 machines
+		  will clear the CF flag and return the table in ES:BX.
+	    80h unsupported function
+		The PC and PCjr return AH=80h/CF set
+	    86h unsupported function
+		The PC XT (1982/11/08), PC Portable, PC AT (1984/01/10),
+		or PS/2 prior to Model 30 return AH=86h/CF set
+Notes:	the 1986/1/10 XT BIOS returns an incorrect value for the feature byte
+	the configuration table is at F000h:E6F5h in 100% compatible BIOSes
+	Dell machines contain the signature "DELL" or "Dell" at absolute FE076h
+	  and a model byte at absolute address FE845h (see #00516)
+	Hewlett-Packard machines contain the signature "HP" at F000h:00F8h and
+	  a product identifier at F000h:00FAh (see #00519)
+	Compaq machines can be identified by the signature string "COMPAQ" at
+	  F000h:FFEAh, and is preceded by additional information (see #00517)
+	Tandy 1000 machines contain 21h in the byte at F000h:C000h and FFh in
+	  the byte at FFFFh:000Eh; Tandy 1000SL/TL machines only provide the
+	  first three data bytes (model/submodel/revision) in the returned
+	  table
+	the ID at F000h:C000h is used by some Microsoft software before
+	  trusting the floppy flags bits 1 and 0 at 0040h:00B5h.
+	the Wang PC contains the signature "WANG" at FC00h:0000h. This is used
+	  by Peter Reilley's portable binary editor and viewer BEAV to detect
+	  a Wang PC.
+	Toshiba laptops contain the signature "TOSHIBA" at FE010h as part of
+	  a laptop information record at F000h:E000h (see #00520)
+	some AST machines contain the string "COPYRIGHT AST RESEARCH" one byte
+	  past the end of the configuration table
+	the Phoenix 386 BIOS contains a second version and date string
+	  (presumably the last modification for that OEM version) beginning at
+	  F000h:FFD8h, with each byte doubled (so that both ROM chips contain
+	  the complete information)
+SeeAlso: AH=C7h,AH=C9h,AX=D100h,AX=D103h
+
+Format of ROM configuration table:
+Offset	Size	Description	(Table 00509)
+ 00h	WORD	number of bytes following
+ 02h	BYTE	model (see #00515)
+ 03h	BYTE	submodel (see #00515)
+ 04h	BYTE	BIOS revision: 0 for first release, 1 for 2nd, etc.
+ 05h	BYTE	feature byte 1 (see #00510)
+ 06h	BYTE	feature byte 2 (see #00511)
+ 07h	BYTE	feature byte 3 (see #00512)
+ 08h	BYTE	feature byte 4 (see #00513)
+ 09h	BYTE	feature byte 5 (see #00514)
+		??? (08h) (Phoenix 386 v1.10)
+		??? (0Fh) (Phoenix 486 v1.03 PCI)
+---AWARD BIOS---
+ 0Ah  N BYTEs	AWARD copyright notice
+---Phoenix BIOS---
+ 0Ah	BYTE	??? (00h)
+ 0Bh	BYTE	major version
+ 0Ch	BYTE	minor version (BCD)
+ 0Dh  4 BYTEs	ASCIZ string "PTL" (Phoenix Technologies Ltd)
+		also on Phoenix Cascade BIOS
+---Quadram Quad386---
+ 0Ah 17 BYTEs	ASCII signature string "Quadram Quad386XT"
+---Toshiba (Satellite Pro 435CDS at least)---
+ 0Ah  7 BYTEs	signature "TOSHIBA"
+ 11h	BYTE	??? (8h)
+ 12h	BYTE	??? (E7h) product ID??? (guess)
+ 13h  3 BYTEs	"JPN"
+
+Bitfields for feature byte 1:
+Bit(s)	Description	(Table 00510)
+ 7	DMA channel 3 used by hard disk BIOS
+ 6	2nd interrupt controller (8259) installed
+ 5	Real-Time Clock installed
+ 4	INT 15/AH=4Fh called upon INT 09h
+ 3	wait for external event (INT 15/AH=41h) supported
+ 2	extended BIOS area allocated (usually at top of RAM)
+ 1	bus is Micro Channel instead of ISA
+ 0	system has dual bus (Micro Channel + ISA)
+SeeAlso: #00509,#00511
+
+Bitfields for feature byte 2:
+Bit(s)	Description	(Table 00511)
+ 7	32-bit DMA supported
+ 6	INT 16/AH=09h (keyboard functionality) supported (see #00585)
+ 5	INT 15/AH=C6h (get POS data) supported
+ 4	INT 15/AH=C7h (return memory map info) supported
+ 3	INT 15/AH=C8h (en/disable CPU functions) supported
+ 2	non-8042 keyboard controller
+ 1	data streaming supported
+ 0	reserved
+SeeAlso: #00509,#00512,AH=C6h,AH=C7h,AH=C8h,INT 16/AH=09h
+
+Bitfields for feature byte 3:
+Bit(s)	Description	(Table 00512)
+ 7	not used
+ 6-5	reserved
+ 4	POST supports ROM-to-RAM enable/disable
+ 3	SCSI subsystem supported on system board
+ 2	information panel installed
+ 1	IML (Initial Machine Load) system (BIOS loaded from disk)
+ 0	SCSI supported in IML
+SeeAlso: #00509,#00511,#00512
+
+Bitfields for feature byte 4:
+Bit(s)	Description	(Table 00513)
+ 7	IBM "private" (set on N51SX, CL57SX)
+ 6	system has EEPROM
+ 5-3	ABIOS presence
+	001 not supported
+	010 supported in ROM
+	011 supported in RAM (must be loaded)
+ 2	"private"
+ 1	system supports memory split at/above 16M
+ 0	POSTEXT directly supported by POST
+SeeAlso: #00509,#00512,#00514
+
+Bitfields for feature byte 5 (IBM):
+Bit(s)	Description	(Table 00514)
+ 7-5	IBM "private"
+ 4-2	reserved
+ 1	system has enhanced mouse mode
+ 0	flash EPROM
+SeeAlso: #00509,#00513
+
+(Table 00515)
+Values for model/submodel/revision:
+Model  Submdl  Rev	BIOS date	System
+ FFh	*	*	04/24/81	PC (original)
+ FFh	*	*	10/19/81	PC (some bugfixes)
+ FFh	*	*	10/27/82	PC (HD, 640K, EGA support)
+ FFh	00h	rev	  ???		Tandy 1000SL
+ FFh	01h	rev	  ???		Tandy 1000TL
+ FFh	46h	***	  ???		Olivetti M15
+ FEh	*	*	08/16/82	PC XT
+ FEh	*	*	11/08/82	PC XT and Portable
+ FEh	*	*	../..x..	Toshiba laptops up to ~1987
+					("x"=product ID) (see #00521)
+ FEh	00h	*** *	  ???		Olivetti M19
+ FEh	43h	***	  ???		Olivetti M240
+ FEh	A6h	???	  ???		Quadram Quad386
+ FDh	*	*	06/01/83	PCjr
+ FCh	*	*	01/10/84	AT models 068,099 6 MHz 20MB
+ FCh	*	*	02/25/93	Linux DOSEMU (all versions)
+ FCh	00h	00h	  ???		PC3270/AT
+ FCh	00h	01h	06/10/85	AT model  239	  6 MHz 30MB
+ FCh	00h	> 01h	  ???		7531/2 Industrial AT
+ FCh	01h	00h	11/15/85	AT models 319,339 8 MHz, Enh Keyb, 3.5"
+ FCh	01h	00h	09/17/87	Tandy 3000
+ FCh	01h	00h	../..x..	Toshiba laptops since ~1988
+					("x"=product ID) (see #00521)
+ FCh	01h	00h	03/08/93	Compaq DESKPRO/i
+ FCh	01h	00h	 various	Compaq DESKPRO, SystemPro, ProSignia
+ FCh	01h	00h	07/20/93	Zenith Z-Lite 425L
+ FCh	01h	00h	04/09/90	AMI BIOS
+ FCh	01h	20h	06/10/92	AST
+ FCh	01h	30h	  ???		Tandy 3000NL
+ FCh	01h	???	  ???		Compaq 286/386
+ FCh	02h	00h	04/21/86	PC XT-286
+ FCh	02h	00h	 various	Compaq LTE Lite
+ FCh	02h	00h	08/05/93	Compaq Contura 486/486c/486cx
+ FCh	02h	00h	08/11/88	SoftWindows 1.0.1 (Power Macintosh)
+ FCh	04h	00h	02/13/87     ** PS/2 Model 50 (10 MHz/1 ws 286)
+ FCh	04h	01h	05/09/87	PS/2 Model 50 (10 Mhz 286, LW-type 32)
+ FCh	04h	02h	  ???		PS/2 Model 50
+ FCh	04h	02h	01/28/88	PS/2 Model 50Z (10 Mhz 286, LW-type 33)
+ FCh	04h	03h	04/18/88	PS/2 Model 50Z (10 MHz/0 ws 286)
+ FCh	04h	04h	  ???		PS/2 Model 50Z
+ FCh	05h	00h	02/13/87     ** PS/2 Model 60 (10 MHz 286)
+ FCh	06h	00h	  ???		IBM 7552-140 "Gearbox"
+ FCh	06h	01h	  ???		IBM 7552-540 "Gearbox"
+ FCh	08h	***	  ???		Epson, unknown model
+ FCh	08h	00h	  ???		PS/2 Model 25/286
+ FCh	09h	00h	  ???		PS/2 Model 25 (10 MHz 286)
+ FCh	09h	00h	08/25/88	PS/2 Model 30 286 (10 Mhz, LW-type 37)
+ FCh	09h	02h	06/28/89	PS/2 Model 30-286
+ FCh	09h	02h	06/28/89	PS/2 Model 25 286 (10 Mhz, LW-type 37)
+ FCh	0Bh	00h	12/01/89	PS/1 (LW-Type 44)
+ FCh	0Bh	00h	02/16/90	PS/1 Model 2011 (10 MHz 286)
+ FCh	20h	00h	02/18/93	Compaq ProLinea
+ FCh	25h	09h	12/07/91	PS/2 Model 56 SLC (20 MHz 386SLC)
+ FCh	30h	***	  ???		Epson, unknown model
+ FCh	31h	***	  ???		Epson, unknown model
+ FCh	33h	***	  ???		Epson, unknown model
+ FCh	42h	***	  ???		Olivetti M280
+ FCh	45h	***	  ???		Olivetti M380 (XP 1, XP3, XP 5)
+ FCh	48h	***	  ???		Olivetti M290
+ FCh	4Fh	***	  ???		Olivetti M250
+ FCh	50h	***	  ???		Olivetti M380 (XP 7)
+ FCh	51h	***	  ???		Olivetti PCS286
+ FCh	52h	***	  ???		Olivetti M300
+ FCh	81h	00h	01/15/88	Phoenix 386 BIOS v1.10 10a
+ FCh	81h	01h	  ???		"OEM machine"
+ FCh	82h	01h	  ???		"OEM machine"
+ FCh	94h	00h	  ???		Zenith 386
+ FBh	00h	01h	01/10/86	PC XT-089, Enh Keyb, 3.5" support
+ FBh	00h	01h	05/13/94	HP 200LX 2MB BIOS 1.01 A D german
+ FBh	00h	02h	05/09/86	PC XT
+ FBh	00h	04h	08/19/93	HP 100LX 1MB BIOS 1.04 A
+ FBh	4Ch	***	  ???		Olivetti M200
+ FAh	00h	00h	09/02/86	PS/2 Model 30 (8 MHz 8086)
+ FAh	00h	01h	12/12/86	PS/2 Model 30
+ FAh	00h	02h	02/05/87	PS/2 Model 30
+ FAh	01h	00h	06/26/87	PS/2 Model 25/25L (8 MHz 8086)
+ FAh	30h	00h	  ???		IBM Restaurant Terminal
+ FAh	4Eh	***	  ???		Olivetti M111
+ FAh	FEh	00h	  ???		IBM PCradio 9075
+ F9h	00h	00h	09/13/85	PC Convertible
+ F9h	FFh	00h	  ???		PC Convertible
+ F8h	00h	00h	03/30/87     ** PS/2 Model 80 (16MHz 386)
+ F8h	00h	00h	  ???		PS/2 Model 75 486 (33Mhz 486)
+ F8h	01h	00h	10/07/87	PS/2 Model 80 (20MHz 386)
+ F8h	02h	00h	  ???		PS/2 Model 55-5571
+ F8h	04h	00h	01/29/88	PS/2 Model 70 (20 Mhz 386DX,LW-type 33)
+ F8h	04h	02h	04/11/88	PS/2 Model 70 20MHz, type 2 system brd
+ F8h	04h	03h	03/17/89	PS/2 Model 70 20MHz, type 2 system brd
+ F8h	05h	00h	  ???		IBM PC 7568
+ F8h	06h	00h	  ???		PS/2 Model 55-5571
+ F8h	07h	00h	  ???		IBM PC 7561/2
+ F8h	07h	01h	  ???		PS/2 Model 55-5551
+ F8h	07h	02h	  ???		IBM PC 7561/2
+ F8h	07h	03h	  ???		PS/2 Model 55-5551
+ F8h	09h	00h	01/29/88	PS/2 Model 70 16MHz 386DX, type 1 sysbd
+ F8h	09h	02h	04/11/88	PS/2 Model 70 some models
+ F8h	09h	03h	03/17/89	PS/2 Model 70 some models
+ F8h	09h	04h	12/15/89	PS/2 Model 70 (16 Mhz 386, LW-type 33)
+ F8h	0Bh	00h	01/18/89	PS/2 Model P70 (8573-121) typ 2 sys brd
+ F8h	0Bh	02h	12/16/89	PS/2 Model P70 ??
+ F8h	0Ch	00h	11/02/88	PS/2 Model 55SX (16 MHz 386SX)
+ F8h	0Dh	00h	  ???		PS/2 Model 70 25MHz, type 3 system brd
+ F8h	0Dh	00h	06/08/88	PS/2 Model 70 386 25MHz, type 3 sys brd
+ F8h	0Dh	01h	02/20/89	PS/2 Model 70 386 25MHz, type 3 sys brd
+ F8h	0Dh	???	12/01/89	PS/2 Model 70 486 25Mhz, type 3 sys brd
+ F8h	0Eh	00h	  ???		PS/1 486SX
+ F8h	0Fh	00h	  ???		PS/1 486DX
+ F8h	10h	00h	  ???		PS/2 Model 55-5551
+ F8h	11h	00h	10/01/90	PS/2 Model 90 XP (25 MHz 486)
+ F8h	12h	00h	  ???		PS/2 Model 95 XP
+ F8h	13h	00h	10/01/90	PS/2 Model 90 XP (33 MHz 486)
+ F8h	14h	00h	10/01/90	PS/2 Model 90-AK9 (25 MHz 486), 95 XP
+ F8h	15h	00h	  ???		PS/2 Model 90 XP
+ F8h	16h	00h	10/01/90	PS/2 Model 90-AKD / 95XP486 (33MHz 486)
+ F8h	17h	00h	  ???		PS/2 Model 90 XP
+ F8h	19h	05h	  ???		PS/2 Model 35/35LS or 40 (20 MHz 386SX)
+ F8h	19h	05h	03/15/91	PS/2 Model 35 SX / 40 SX (LW-type 37)
+ F8h	19h	06h	04/04/91	PS/2 Model 35 SX / 40 SX (LW-type 37)
+ F8h	1Ah	00h	  ???		PS/2 Model 95 XP
+ F8h	1Bh	00h	09/29/89	PS/2 Model 70 486 (25 Mhz 386DX)
+ F8h	1Bh	00h	10/02/89	PS/2 Model 70-486 (25 MHz 486)
+ F8h	1Ch	00h	02/08/90	PS/2 Model 65-121 / 65 SX (16MHz 386SX)
+ F8h	1Eh	00h	02/08/90	PS/2 Model 55LS (16 MHz 386SX)
+ F8h	23h	00h	  ???		PS/2 Model L40 SX
+ F8h	23h	01h	  ???		PS/2 Model L40 SX (20 MHz 386SX)
+ F8h	23h	02h	02/27/91	PS/2 Model L40 SX (20Mhz386SX,LW-typ37)
+ F8h	25h	00h	  ???		PS/2 Model 57 SLC
+ F8h	25h	06h	  ???		PS/2 Model M57 (20 MHz 386SLC)
+ F8h	26h	00h	  ???		PS/2 Model 57 SX
+ F8h	26h	01h	  ???		PS/2 Model 57 (20 MHz 386SX)
+ F8h	26h	02h	07/03/91	PS/2 Model 57 SX (20Mhz 386SX, SCSI)
+ F8h	28h	00h	  ???		PS/2 Model 95 XP
+ F8h	29h	00h	  ???		PS/2 Model 90 XP
+ F8h	2Ah	00h	  ???		PS/2 Model 95 XP (50 MHz 486)
+ F8h	2Bh	00h	  ???		PS/2 Model 90 / 90XP486 (50 MHz 486)
+ F8h	2Ch	00h	  ???		PS/2 Model 95 XP
+ F8h	2Ch	01h	  ???		PS/2 Model 95 (20 MHz 486SX)
+ F8h	2Dh	00h	  ???		PS/2 Model 90 XP (20 MHz 486SX)
+ F8h	2Eh	00h	  ???		PS/2 Model 95 XP
+ F8h	2Eh	00h	  ???		PS/2 Model 95 XP486 (20 Mhz 486SX)
+ F8h	2Eh	01h	  ???		PS/2 Model 95 (20 MHz 486SX + 487SX)
+ F8h	2Fh	00h	  ???		PS/2 Model 90 XP (20 MHz 486SX + 487SX)
+ F8h	30h	00h	  ???		PS/1 Model 2121 (16 MHz 386SX)
+ F8h	33h	00h	  ???		PS/2 Model 30-386
+ F8h	34h	00h	  ???		PS/2 Model 25-386
+ F8h	36h	00h	  ???		PS/2 Model 95 XP
+ F8h	37h	00h	  ???		PS/2 Model 90 XP
+ F8h	38h	00h	  ???		PS/2 Model 57
+ F8h	39h	00h	  ???		PS/2 Model 95 XP
+ F8h	3Fh	00h	  ???		PS/2 Model 90 XP
+ F8h	40h	00h	  ???		PS/2 Model 95 XP
+ F8h	41h	00h	  ???		PS/2 Model 77
+ F8h	45h	00h	  ???		PS/2 Model 90 XP (Pentium)
+ F8h	46h	00h	  ???		PS/2 Model 95 XP (Pentium)
+ F8h	47h	00h	  ???		PS/2 Model 90/95 E (Pentium)
+ F8h	48h	00h	  ???		PS/2 Model 85
+ F8h	49h	00h	  ???		PS/ValuePoint 325T
+ F8h	4Ah	00h	  ???		PS/ValuePoint 425SX
+ F8h	4Bh	00h	  ???		PS/ValuePoint 433DX
+ F8h	4Eh	00h	  ???		PS/2 Model 295
+ F8h	50h	00h	  ???		PS/2 Model P70 (8573) (16 MHz 386)
+ F8h	50h	01h	12/16/89	PS/2 Model P70 (8570-031)
+ F8h	52h	00h	  ???		PS/2 Model P75 (33 MHz 486)
+ F8h	56h	00h	  ???		PS/2 Model CL57 SX
+ F8h	57h	00h	  ???		PS/2 Model 90 XP
+ F8h	58h	00h	  ???		PS/2 Model 95 XP
+ F8h	59h	00h	  ???		PS/2 Model 90 XP
+ F8h	5Ah	00h	  ???		PS/2 Model 95 XP
+ F8h	5Bh	00h	  ???		PS/2 Model 90 XP
+ F8h	5Ch	00h	  ???		PS/2 Model 95 XP
+ F8h	5Dh	00h	  ???		PS/2 Model N51 SLC
+ F8h	5Eh	00h	  ???		IBM ThinkPad 700
+ F8h	61h	***	  ???		Olivetti P500
+ F8h	62h	***	  ???		Olivetti P800
+ F8h	80h	00h	  ???		PS/2 Model 80 (25 MHz 386)
+ F8h	80h	01h	11/21/89	PS/2 Model 80-A21 (25 Mhz 386)
+ F8h	81h	00h	  ???		PS/2 Model 55-5502
+ F8h	87h	00h	  ???		PS/2 Model N33SX
+ F8h	88h	00h	  ???		PS/2 Model 55-5530T
+ F8h	97h	00h	  ???		PS/2 Model 55 Note N23SX
+ F8h	99h	00h	  ???		PS/2 Model N51 SX
+ F8h	F2h	30h	  ???		Reply Model 32
+ F8h	F6h	30h	  ???		Memorex Telex
+ F8h	FDh	00h	  ???		IBM Processor Complex (with VPD)
+ F8h	???	???	  ???		PS/2 Model 90 (25 MHz 486SX)
+ F8h	???	???	  ???		PS/2 Model 95 (25 MHz 486SX)
+ F8h	???	???	  ???		PS/2 Model 90 (25 MHz 486SX + 487SX)
+ F8h	???	???	  ???		PS/2 Model 95 (25 MHz 486SX + 487SX)
+ E4h	???	???	  ???		Triumph Adler PC/XT
+ E1h	???	???	  ???		??? (checked for by DOS4GW.EXE)
+ E1h	00h	00h	  ???		PS/2 Model 55-5530 Laptop
+ D9h	???	???	  ???		Peacock XT
+ 9Ah	*	*	  ???		Compaq XT/Compaq Plus
+ 30h	???	???	  ???		Sperry PC
+ 2Dh	*	*	  ???		Compaq PC/Compaq Deskpro
+ ???	56h	???	  ???		Olivetti, unknown model
+ ???	74h	???	  ???		Olivetti, unknown model
+Notes:	BIOS dates may vary without changes to the revision code, especially
+	  for non-IBM machines
+    * This BIOS call is not implemented in these early versions or under
+      Linux's DOSEMU.  Read the Model byte at F000h:FFFEh and BIOS date at
+      F000h:FFF5h instead.
+   ** These BIOS versions require the DASDDRVR.SYS patches.
+  *** These Olivetti and Epson machines store the submodel in the byte at
+	F000h:FFFDh.
+SeeAlso: #00509,#00516
+
+(Table 00516)
+Values for Dell model byte:
+ 02h	Dell 200
+ 03h	Dell 300
+ 05h	Dell 220
+ 06h	Dell 310
+ 07h	Dell 325
+ 09h	Dell 310A
+ 0Ah	Dell 316
+ 0Bh	Dell 220E
+ 0Ch	Dell 210
+ 0Dh	Dell 316SX
+ 0Eh	Dell 316LT
+ 0Fh	Dell 320LX
+ 11h	Dell 425E
+SeeAlso: #00509,#00515
+
+Format of Compaq product information:
+Address		Size	Description	(Table 00517)
+ F000h:FFE4h	BYTE	product family code (first byte)
+ F000h:FFE5h	BYTE	Point release number
+ F000h:FFE6h	BYTE	ROM version code
+ F000h:FFE7h	BYTE	product family code (second byte)
+ F000h:FFE8h	WORD	BIOS type code
+SeeAlso: #00518,#00520
+
+Format of Hewlett-Packard ROM ID at F000h:00F8h:
+Offset	Size	Description	(Table 00518)
+ 00h  2 BYTEs	signature "HP" (48h 50h)
+ 02h  2 BYTEs	00h 00h
+ 04h	BYTE	secondary code revision
+ 05h	BYTE	primary code revision
+ 06h	BYTE	date code, year-1960 (BCD)
+ 07h	BYTE	date code, week of year (BCD)
+SeeAlso: #00517,#00519
+
+Bitfields for Hewlett-Packard product identifier:
+Bit(s)	Description	(Table 00519)
+ 4-0	machine code
+	0 original Vectra
+	1 ES/12
+	2 RS/20
+	3 Portable/CS
+	4 ES
+	5 CS
+	6 RS/16
+	other reserved
+ 7-5	CPU type
+	0 = 80286
+	1 = 8088
+	2 = 8086
+	3 = 80386
+	other reserved
+SeeAlso: #00518
+
+Format of Toshiba laptop information:
+Offset	Size	Description	(Table 00520)
+ 00h  8 BYTEs	ASCII product number (e.g. "T2200SX ")
+ 08h  8 BYTEs	ASCII version number (e.g. "V1.20   ")
+ 10h  8 BYTEs	ASCII signature string "TOSHIBA "
+ 18h  8 BYTEs	always zero???
+ 20h	DWORD	-> built-in BIOS setup program entry point or 0000h:0000h
+Note:	this record is located at F000h:E000h
+SeeAlso: #00517,#00518
+
+(Table 00521)
+Values for Toshiba product ID:
+model prodID   version	  date	   product number
+ FEh	29h		../..)..   Toshiba T1000LE
+ FEh	2Ah		../..*..   Toshiba T1000XE
+ FEh	2Bh		../..+..   Toshiba T1000SE
+ FEh	2Ch		../..,..   Toshiba T1000
+ FEh	2Dh		../..-..   Toshiba T1200F
+ FEh	2Dh	V4.00	12/26-87   Toshiba T1200H
+ FEh	2Eh		../.....   Toshiba T1100+
+ FCh	22h		../.."..   Toshiba T8500
+ FCh	26h		01/15&88   Toshiba T5200
+ FCh	27h		../..'..   Toshiba T5100
+ FCh	28h		../..(..   Toshiba T2000
+ FCh	2Ah		12/26*89   Toshiba T1200XE
+ FCh	2Bh		../..+..   Toshiba T1600
+ FCh	2Ch		../..,..   Toshiba T3100e
+ FCh	2Dh		../..-..   Toshiba T3200
+ FCh	2Fh		../../..   Toshiba T3100
+ FCh	34h	V1.50	02/04494   Toshiba T100X
+ FCh	38h		../..8..   Toshiba T2000SXe
+ FCh	39h	V1.20	09/16991   Toshiba T2200SX
+ FCh	39h	V1.40	10/01992   Toshiba T2200SX
+ FCh	3Ch	V1.50	01/28<91   Toshiba T2000SX
+ FCh	3Dh		../..=..   Toshiba T3200SXC
+ FCh	3Eh		../..>..   Toshiba T3100SX
+ FCh	3Fh		../..?..   Toshiba T3200SX
+ FCh	40h		../..@..   Toshiba T4500C
+ FCh	41h	V1.20	04/05A92   Toshiba T4500     ("T4500SXC" ???)
+ FCh	45h	V3.20	04/14E92   Toshiba T4400SX   ("C" or "SXC" on cover)
+ FCh	45h		01/13E93   Toshiba T4400SXC
+ FCh	46h *		../..F..   Toshiba T6400
+ FCh	46h *		../..F..   Toshiba T6400C
+ FCh	5Fh	V1.40	01/18_94   Toshiba T3300SL
+ FCh	69h		../..i..   Toshiba T1900C    ("T1900CT" ???)
+ FCh	6Ah	V1.30	05/19j93   Toshiba T1900     ("T1900S" ???)
+ FCh	6Dh	V1.10	12/25m92   Toshiba T1850C
+ FCh	6Eh	V1.00	08/19n92   Toshiba T1850
+ FCh	6Eh	V1.10	12/25n92   Toshiba T1850
+ FCh	6Fh	V1.00	07/17o92   Toshiba T1800
+ FCh	6Fh	V1.10	12/25o92   Toshiba T1800
+ FCh	7Eh	V1.30	06/17~93   Toshiba T4600C
+ FCh	7Fh	V1.40	11/10x94   Toshiba T4600
+ FCh	8Ah	V1.30	10/22x93   Toshiba T6600C
+ FCh	91h	V1.20	07/15x94   Toshiba T2400CT
+ FCh	91h	V5.00	07/28x95   Toshiba T2400CS/CT
+ FCh	92h	V5.00	07/28x95   Toshiba T3600CT
+ FCh	96h *	V1.40	12/08x94   Toshiba T200
+ FCh	96h *	V1.50	12/08x94   Toshiba T200CS	(T200)
+ FCh	97h		../..x..   Toshiba T4800CT
+ FCh	98h *	V1.10	12/22x93   Toshiba T1910
+ FCh	98h *	V2.40	07/12x94   Toshiba T1910/CS	(T19XX)
+ FCh	99h		../..x..   Toshiba T4700CS
+ FCh	9Bh	V2.30	01/31x94   Toshiba T4700CT
+ FCh	9Bh	V2.50	03/22x94   Toshiba T4700CT
+ FCh	9Bh	V5.00	07/28x95   Toshiba T4700CT
+ FCh	9Ch	V1.30	01/11x94   Toshiba T1950CT
+ FCh	9Ch	V2.50	07/22x94   Toshiba T1950CT	(T19XX)
+ FCh	9Dh *	V2.40	07/12x94   Toshiba T1950/CS	(T19XX)
+ FCh	9Eh *	V1.20	12/25x93   Toshiba T3400
+ FCh	9Eh *	V1.30	03/22x94   Toshiba T3400/CT
+ FCh	B5h **	V5.10	08/25x95   Toshiba T2110/CS	(T21XX)
+ FCh	B5h	V5.10	08/25x95   Toshiba T2130CS/CT	(T21XX)
+ FCh	BAh	V1.30	02/16x95   Toshiba T2150CDS/CDT
+ FCh	BAh	V5.00	07/27x95   Toshiba T2150CDS/CDT (T2150)
+ FCh	BBh **	V1.30	01/25x95   Toshiba T2100/CS/CT
+ FCh	BBh **	V5.00	07/27x95   Toshiba T2100/CS/CT
+ FCh	BCh	V1.20	12/05x94   Toshiba T2450CT
+ FCh	BCh	V5.00	07/28x95   Toshiba T2450CT
+ FCh	BEh	V5.00	07/28x95   Toshiba T4850CT
+ FCh	C0h	V5.20	05/30x96   Toshiba 420CDS/CDT
+ FCh	C1h	V5.20	03/27x96   Toshiba 100CS
+ FCh	C3h	V5.60	07/19x96   Toshiba 710CDT / 720CDT
+ FCh	C6h	V5.30	11/30x95   Toshiba 410CS/CDT
+ FCh	CAh	V5.10	08/18x95   Toshiba 400CS/CDT
+ FCh	CAh	V5.40	12/18x95   Toshiba 400CS/CDT
+ FCh	CBh	V5.10	09/01x95   Toshiba 610CT
+ FCh	CCh	V5.50	06/13x96   Toshiba 700CS/CT
+ FCh	CFh	V5.00	08/07x95   Toshiba T4900CT
+ FCh	DCh	V5.10	06/17x96   Toshiba 650CT
+ FCh	DCh	V5.10	05/10x96   Toshiba 110CS/CT
+ FCh	DDh	V5.10	05/10x96   Toshiba 110CS/CT
+ FCh	DFh	V5.20	05/27x96   Toshiba 500CS/CDT
+ FCh	???	V5.???	../..x..   Toshiba 620CT
+ FCh	???	V5.???	../..x..   Toshiba 660CDT
+ FCh	???	V5.30	11/22/96   Toshiba 730CDT
+ FCh	???	V6.00	09/20/96   Toshiba 200CDS/CDT
+ FCh	???	V6.20	11/14/96   Toshiba 430CDS/CDT
+ FCh	???	V6.40	12/05/96   Toshiba 510CS/CDT
+Notes:	the 8-bit ASCII graphics character in the "date" column above
+	  has been substituted by "x" if larger than 80h
+	BIOS version numbers and dates may vary, esp. due to harddisk and
+	  (flash) BIOS upgrades; all BIOS versions 5.xx are flash updates
+	  for Windows95, the product number may indicate the series only
+	  (T21XX) or does no longer contain the exact type suffix (CS/CT)
+	the most recent versions of the BIOS have stopped including the
+	  product ID code in the BIOS date
+	[*] These models have monochrome and color versions which can be
+	  distinguished with INT 42/AX=7503h (WD90C24 chipset)
+	[**] These models have monochrome and color versions which can be
+	  distinguished with INT 10/AX=5F50h (CT655xx chipset)
+	models not found here like T21x5 are variants differing only in
+	  bundled software
+SeeAlso: #00515
+--------B-15C1-------------------------------
+INT 15 - SYSTEM - RETURN EXTENDED-BIOS DATA-AREA SEGMENT ADDRESS (PS)
+	AH = C1h
+Return: CF set on error
+	CF clear if successful
+	    ES = segment of data area (see #M0001,#M0004,#M0005)
+SeeAlso: AH=04h"ABIOS",MEM 0040h:000Eh"DATA"
+--------M-15C200-----------------------------
+INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - ENABLE/DISABLE
+	AX = C200h
+	BH = new state
+	    00h disabled
+	    01h enabled
+Return: CF set on error
+	AH = status (see #00522)
+Note:	IBM classifies this function as required
+SeeAlso: AX=C201h,AX=C207h,AX=C208h
+
+(Table 00522)
+Values for pointing device function status:
+ 00h	successful
+ 01h	invalid function
+ 02h	invalid input
+ 03h	interface error
+ 04h	need to resend
+ 05h	no device handler installed
+--------M-15C201-----------------------------
+INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - RESET
+	AX = C201h
+Return: CF set on error
+	    AH = status (see #00522)
+	CF clear if successful
+	    BH = device ID
+	    BL = value returned by attached device after reset
+		AAh if device is a mouse
+Notes:	after successful completion of this call, the pointing device is set
+	  as follows: disabled, sample rate 100 Hz, resolution 4 counts/mm,
+	  scaling 1:1, unchanged data package size
+	this function should be called before rebooting the system (see
+	  INT 15/AH=4Fh), since otherwise the mouse may behave erratically on
+	  some systems after the boot.	Before calling this function, the 
+	  caller should check that the INT 15h vector is in fact initialized
+	  (on some very old machines the IVT may contain 0000h:0000h).
+	IBM classifies this function as required
+SeeAlso: INT 33/AX=0000h,AX=C200h,AX=C207h
+--------M-15C202-----------------------------
+INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - SET SAMPLING RATE
+	AX = C202h
+	BH = sampling rate
+	    00h 10/second
+	    01h 20/second
+	    02h 40/second
+	    03h 60/second
+	    04h 80/second
+	    05h 100/second
+	    06h 200/second
+Return: CF set on error
+	    AH = status (see #00522)
+SeeAlso: INT 33/AX=001Ch
+--------M-15C203-----------------------------
+INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - SET RESOLUTION
+	AX = C203h
+	BH = resolution (see #00523)
+Return: CF set on error
+	    AH = status (see #00522)
+
+(Table 00523)
+Values for pointing device resolution:
+ 00h	one count per mm
+ 01h	two counts per mm
+ 02h	four counts per mm
+ 03h	eight counts per mm
+--------M-15C204-----------------------------
+INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - GET TYPE
+	AX = C204h
+Return: CF set on error
+	    AH = status (see #00522)
+	CF clear if successful
+	    BH = device ID
+--------M-15C205-----------------------------
+INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - INITIALIZE
+	AX = C205h
+	BH = data package size (1 - 8 bytes)
+Return: CF set on error
+	    AH = status (see #00522)
+Note:	the pointing device is set as follows: disabled, 100 Hz sample rate,
+	  resolution 4 counts/mm, scaling 1:1
+SeeAlso: AX=C201h
+--------M-15C206-----------------------------
+INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - EXTENDED COMMANDS
+	AX = C206h
+	BH = subfunction
+	    00h return device status
+		Return: BL = pointing device status (see #00524)
+			CL = resolution (see #00523)
+			DL = sample rate, reports per second
+	    01h set scaling at 1:1
+	    02h set scaling at 2:1
+Return: CF set on error
+	    AH = status (see #00522)
+
+Bitfields for pointing device status:
+Bit(s)	Description	(Table 00524)
+ 0	right button pressed
+ 1	reserved
+ 2	left button pressed
+ 3	reserved
+ 4	0 if 1:1 scaling, 1 if 2:1 scaling
+ 5	device enabled
+ 6	0 if stream mode, 1 if remote mode
+ 7	reserved
+--------M-15C207-----------------------------
+INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE (PS) - SET DEVICE HANDLER ADDR
+	AX = C207h
+	ES:BX -> FAR user device handler or 0000h:0000h to cancel
+Return: CF set on error
+	    AH = status (see #00522)
+Note:	when the subroutine is called, it is passed the following values on
+	  the stack; the handler should return with a FAR return without
+	  popping the stack:
+		WORD 1: status (see #00525)
+		WORD 2: X data (high byte = 00h)
+		WORD 3: Y data (high byte = 00h)
+		WORD 4: 0000h
+SeeAlso: INT 33/AX=000Ch
+
+Bitfields for pointing device status:
+Bit(s)	Description	(Table 00525)
+ 15-8	reserved (0)
+ 7	Y data overflowed
+ 6	X data overflowed
+ 5	Y data is negative
+ 4	X data is negative
+ 3	reserved (1)
+ 2	reserved (0)
+ 1	right button pressed
+ 0	left button pressed
+--------M-15C208-----------------------------
+INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE - WRITE TO POINTER PORT
+	AX = C208h
+	BL = byte to be sent to the pointing device
+Note:	IBM classifies this function as optional
+SeeAlso: AX=C200h,AX=C209h
+--------M-15C209-----------------------------
+INT 15 - SYSTEM - POINTING DEVICE BIOS INTERFACE - READ FROM POINTER PORT
+	AX = C209h
+Return: BL = first byte read from pointing device
+	CL = second byte read
+	DL = third byte read
+Note:	IBM classifies this function as optional
+SeeAlso: AX=C200h,AX=C208h
+--------M-15C2-------------------------------
+INT 15 - IBM SurePath BIOS - Officially "Private" Function
+	AH = C2h
+	AL = 10h-23h
+SeeAlso: AH=07h"IBM",AH=3Eh"IBM"
+--------B-15C3------------------------------
+INT 15 - SYSTEM - ENABLE/DISABLE WATCHDOG TIMEOUT (PS50+)
+	AH = C3h
+	AL = function
+	    00h disable PS/2 watchdog timer
+	    01h enable PS/2 watchdog timer
+		BX = timer counter (0001h-00FFh)
+	    02h disable Gearbox system
+	    03h enable Gearbox system
+Return: CF set on error
+	CF clear if successful
+Note:	the watchdog timer generates an NMI
+SeeAlso: INT 21/AH=2Bh/CX=6269h"WDTSR"
+--------B-15C4-------------------------------
+INT 15 - SYSTEM - PROGRAMMABLE OPTION SELECT (PS50+)
+	AH = C4h
+	AL = subfunction
+	    00h return base POS register address
+	    01h enable selected slot for setup
+		BL = slot number (1 to 8)
+	    02h disable setup for all slots (enable adapter)
+Return: CF set on error
+	DX = base POS register address (if subfunction 00h)
+SeeAlso: AH=C6h
+--------B-15C5-------------------------------
+INT 15 UC - OS HOOK - ROM BIOS TRACING CALLOUT (PS30/286,PS50Z,PS95)
+	AH = C5h
+	AL = interrupt being invoked
+	    01h INT 19
+	    02h INT 14
+	    03h INT 16
+	    04h INT 40 (floppy INT 13)
+	    05h INT 17
+	    06h INT 10
+	    07h INT 12
+	    08h INT 11
+	    09h INT 1A
+Return: all registers except AX must be preserved
+Notes:	called as the very first action of the indicated ROM BIOS interrupt
+	  handlers on the PS/2 Models 30/286, 50Z, and 95
+	default handler does nothing and returns CF clear for the above
+	  subfunctions, CF set and AH=86h for all other subfunctions
+	value of AX passed to the original interrupt handler is pushed on
+	  stack immediately prior to call
+--------B-15C6-------------------------------
+INT 15 U - later PS/2 models - GET POS DATA
+	AH = C6h
+	???
+Return: ???
+Notes:	this function is referenced by name and number in some IBM BIOS manuals
+	IBM reports that "there are a number of problems with this call" and
+	  does not recommend its use.
+SeeAlso: AH=C4h
+--------B-15C7-------------------------------
+INT 15 - SYSTEM - later PS/2s - RETURN MEMORY-MAP INFORMATION
+	AH = C7h
+	DS:SI -> user supplied memory map table (see #00526)
+Return: CF set on error
+	CF clear if successful
+Notes:	call AH=C0h and examine bit 4 of feature byte 2 to check if this
+	  function is supported
+	IBM classifies this function as optional
+	Windows95 OSR2 reportedly does not support this function even though
+	  INT 15/AH=C0h indicates that it is available (observed on several
+	  different systems)
+SeeAlso: AH=C0h,AH=C9h,AH=D1h,AX=E820h
+
+Format of memory-map table structure:
+Offset	Size	Description	(Table 00526)
+ 00h	WORD	length of table (excluding this word)
+ 02h	DWORD	local memory between 1M and 16M, in 1K blocks
+ 06h	DWORD	local memory between 16M and 4G, in 1K blocks
+ 0Ah	DWORD	system memory between 1M and 16M, in 1K blocks
+ 0Eh	DWORD	system memory between 16M and 4G, in 1K blocks
+ 12h	DWORD	cacheable memory between 1M and 16M, in 1K blocks
+ 16h	DWORD	cacheable memory between 16M and 4G, in 1K blocks
+ 1Ah	DWORD	1K blocks before start of non-system memory between 1M and 16M
+ 1Eh	DWORD	1K blocks before start of non-system memory between 16M and 4G
+ 22h	WORD	start segment of largest free block from C0000h-DFFFFh
+ 24h	WORD	size of largest free block
+ 26h	DWORD	reserved
+--------B-15C8-------------------------------
+INT 15 - SYSTEM - ENABLE/DISABLE PROCESSOR FUNCTIONS
+	AH = C8h
+	AL = function
+	    00h disable L1 cache
+	    01h enable L1 cache
+	    ---models 90 and 95 only---
+	    02h disable L2 cache
+	    03h enable L2 cache
+	    04h disable both caches
+	    05h enable both caches
+	    06h return status of both caches
+	    07h-FFh Reserved
+Return: CF set on error
+	CF clear if successful
+	AH = status (see #00527)
+	For subfunction 06h only:
+	    BL = status of L1 cache
+		00h enabled
+		01h disabled or not installed
+		02h disabled due to test error (can not be enabled)
+	    BH = status of L2 cache (same codes as BL)
+Notes:	 supported by at least PS/2 70, 70/486, 80-A21, 90, 95
+	call AH=C0h and examine bit 3 of feature byte 2 to check if this
+	  function is supported.
+	on a 486 system, any external caches must be disabled when the
+	  on-chip cache (L1) is disabled.
+SeeAlso: AH=C0h
+
+(Table 00527)
+Values for status:
+ 00h	operation successful
+ 01h	function choice (in AL) is invalid
+ 02h	NVRAM data is invalid
+ 03h	cache test error
+ 04h	(90 and 95 only) cannot perform operation requested due to state of
+	  other cache (also see note above)
+ 05h	no L2 cache is present
+ 07h	invalid input values
+ 09h	CPU in protected mode
+--------B-15C9-------------------------------
+INT 15 - newer PS/2; various BIOSes - GET CPU TYPE AND MASK REVISION
+	AH = C9h
+	AL = 10h (may be required on some non-PS BIOSes)
+Return: CF clear if successful
+	    AH = 00h
+	    CH = CPU type (see #00528)
+	    CL = mask revision (stepping level) (see #00529)
+	CF set on error
+	    AH = status (80h,86h = function not supported)
+Notes:	the BIOS must save DX at startup in order to be able to support this
+	  call; PS/2 Models 56, 57, 90, and 95 are known to support it
+	the PS/2 BIOS merely reads CMOS locations 190h (type) and 191h (rev)
+	IBM classifies this function as optional
+SeeAlso: AX=D100h,AX=DA92h,MEM 0040h:00BCh
+
+(Table 00528)
+Values for CPU type:
+ 03h	80386DX or clone
+ 04h	80486
+ 05h	Pentium
+ 23h	80386SX or clone
+ 33h	Intel i376
+ 43h	80386SL or clone
+ A3h	IBM 386SLC
+ A4h	IBM 486SLC
+
+(Table 00529)
+Values for stepping level:
+---i376 (type code 33h)---
+ 05h	A0
+ 08h	B
+---80386/80386DX (type code 03h)---
+ 03h	Intel B1 to B10, Am386DX/DXL step A
+ 05h	Intel D0
+ 08h	Intel D1/D2/E1, Am386DX/DXL step B
+---80386SL (type code 43h)---
+ 05h	A
+ 1xh	B
+---80386SX (type code 23h)---
+ 04h	Intel A0
+ 05h	Intel B, Am386SX/SXL step A1
+ 08h	Intel C/D1, Am386SX/SXL step B
+ 09h	Intel 386CX/386EX/386SXstatic step A
+---80486DX (type code 04h)---
+ 00h	Intel A0/A1
+ 01h	Intel B2 to B6
+ 02h	Intel C0
+ 03h	Intel C1
+ 04h	Intel D0
+ 10h	Intel cA2/cA3, Cx486SLC step A
+ 11h	Intel cB0/cB1
+---486DX2 (type code 04h)---
+ 02h	Am486DX2 (unknown stepping)
+ 32h	Intel DX2/Overdrive steps A0 to A2
+ 33h	Intel DX2/Overdrive step B1
+---486SX (type code 04h)---
+ 20h	Intel A0
+ 22h	Intel B0
+ 27h	Intel cA0
+ 28h	Intel cB0
+---486SL (type code 04h)---
+ 40h	Intel A
+---IntelSX2 (type code 04h)---
+ 5xh	Intel A
+---IntelDX4 (type code 04h)---
+ 8xh	Intel A
+---487SX (type code 04h)---
+ 20h	Intel A0
+ 21h	Intel B0
+---Pentium (type code 05h)---
+ 0xh	Intel P5 steps Ax (1993)
+ 1xh	Intel P5 steps Bx (1994)
+ 2xh	Intel P54C step A
+---RapidCAD (type code 03h)---
+ 40h	A
+--------B-15CA-------------------------------
+INT 15 U - PS/2 Model 95 - READ/WRITE CMOS MEMORY
+	AH = CAh
+	AL = function
+	    00h read CMOS
+		Return: CL = value of CMOS location
+	    01h write CMOS
+		CL = new value for CMOS location
+	BL = CMOS location (0Eh-3Fh)
+Return: CF clear if successful
+	    AH = 00h
+	CF set on error
+	    AH = error code (see #00530)
+Note:	writes do not update the CMOS checksum
+
+(Table 00530)
+Values for CMOS read/write error code:
+ 01h	CMOS lost power or has invalid checksum
+ 03h	specified location out of range (too high)
+ 04h	specified location out of range (too low)
+ 80h	unsupported function (PC)
+ 86h	unsupported function (XT)
+--------B-15CB-------------------------------
+INT 15 U - PS/2 Model 95 - RESERVED
+	AH = CBh
+	???
+Return: ???
+--------B-15CC-------------------------------
+INT 15 U - PS/2 Model 95 - RESERVED
+	AH = CCh
+	???
+Return: ???
+--------V-15CCCC-----------------------------
+INT 15 U - Toshiba laptops - VCHAD.EXE - INSTALLATION CHECK
+	AX = CCCCh
+Return: AX = ABCDh if installed
+Note:	supported by Toshiba VGA change display utility VCHAD.EXE ver 2.90+
+	  older versions have the string "VCHAD" 2 bytes after the address of
+	  the INT 15 handler which is hooked by all versions for the SysReq key
+SeeAlso: AH=85h
+--------B-15CD-------------------------------
+INT 15 U - PS/2 Model 95 - RESERVED
+	AH = CDh
+	???
+Return: ???
+--------B-15CE--BL00-------------------------
+INT 15 - later PS/2s - ALLOCATE DMA ARBITRATION LEVEL
+	AH = CEh
+	BL = 00h-0Eh arbitration level to be allocated
+	     0Fh-FFh reserved
+	AL = option byte
+	    bit 7-1: reserved (0)
+	    bit 0: 0 = need DMA channel for arbitration level requested
+		   1 = no channel required for arbitration level
+Return: CF set on error
+	    AH = status (80h,86h = function not supported)
+	CF clear on success
+	    AL = channel number
+		00h-07h channel number allocated for the arbiration level
+		08h-FEh reserved
+		FFh	no channel requested for arbitration level
+	    AH = status (see #00531)
+Notes:	 arbitration level 00h has the highest priority, 0Eh the lowest
+	 to perform a DMA transfer operation, be sure to call this function
+	   first, and call AH=CFh afterward.  Failure to use this function
+	   can cause unpredictable results.
+SeeAlso: AH=CFh
+
+(Table 00531)
+Values for DMA arbitration status:
+ 00h	success
+ 01h	arbitration level not available
+ 02h	channel not available
+ 03h	invalid arbitration level passed
+--------B-15CF-------------------------------
+INT 15 - later PS/2s - DEALLOCATE DMA ARBITRATION LEVEL
+	AH = CFh
+	BL = arbitration level to be deallocated (see AH=CEh)
+Return: CF set on error
+	    AH = status (80h,86h = function not supported)
+	CF clear on success
+	    AH = status
+		00h success
+		04h arbitration level not allocated
+SeeAlso: AH=CEh
+--------B-15D0-------------------------------
+INT 15 - later PS/2s - RESERVED
+	AH = D0h
+	???
+Return: ???
+----------15D042BL00-------------------------
+INT 15 R - Intel Pentium Pro BIOS UPDATE - INSTALLATION CHECK
+	AX = D042h
+	BL = 00h
+Return: CF clear if successful
+	CF set on error
+	AH = status
+	    00h successful
+		EBX:ECX = signature "INTELPEP"
+		EDX = BIOS update loader version
+		SI = number of 2K update blocks which can be recorded in NVRAM
+	    86h not implemented
+	AL = OEM error (if AH is not 00h or 86h, otherwise undefined)
+	    00h successful
+Program: the Pentium Pro BIOS update allows the system BIOS or other software
+	  to install a microcode patch into the Pentium Pro processor
+Notes:	this API must be called from actual real mode, not V86 mode
+	at least 32K stack space must be available when this function is called
+SeeAlso: AX=D042h/BL=01h,AX=D042h/BL=02h,AX=D042h/BL=03h
+SeeAlso: @xxxxh:xxxxh"Intel BIOS Upgrade",MSR 00000079h
+----------15D042BL01-------------------------
+INT 15 R - Intel Pentium Pro BIOS UPDATE - WRITE BIOS UPDATE AREA
+	AX = D042h
+	BL = 01h
+	ES:DI -> microcode update block (see #00533)
+	CX,DX,SI = segments of three 64K scratchpad areas for BIOS use
+Return: CF clear if successful
+	CF set on error
+	AH = status (see #00532)
+	AL = OEM error (if AH is not 00h or 86h, otherwise undefined)
+	    00h successful
+Notes:	a microcode update may also be initiated by a WRMSR instruction
+	  with ECX=0079h, EDX=00000000h, and EAX=linear address of update
+	  block (see #00533)
+	at least 32K stack space must be available when this function is called
+SeeAlso: AX=D042h/BL=00h,AX=D042h/BL=02h,AX=D042h/BL=03h,MSR 00000079h
+
+(Table 00532)
+Values for Pentium Pro BIOS update status:
+ 00h	successful
+ 86h	not implemented
+ 90h	unable to erase NVRAM device
+ 91h	unable to write to NVRAM device
+ 92h	unable to read storage
+ 93h	NVRAM is full
+ 94h	specified processor stepping is not present in system
+ 95h	invalid header or loader version
+ 96h	wrong checksum in header
+ 97h	processor rejected the update
+ 98h	the same or a more recent update is already stored
+ 99h	update block number was out of range
+
+Format of Pentium Pro microcode update block:
+Offset	Size	Description	(Table 00533)
+ 00h	DWORD	update header version number (currently 00000001h)
+		FFFFFFFFh = unused block
+ 04h	DWORD	revision number of this microcode update
+ 08h	DWORD	update creation date, as BCD mmddyyyy (month,day,year)
+ 0Ch	DWORD	family/model/stepping of processor to which update applied
+		(same value as returned by CPUID instruction)
+ 10h	DWORD	checksum (used to force sum of all 512 DWORDs of the update
+		block to 00000000h)
+ 14h	DWORD	revision number of loader needed to install update
+		(currently 00000001h)
+ 18h 24 BYTEs	reserved for future expansion
+ 30h 2000 BYTEs	encrypted microcode data
+SeeAlso: MSR 00000079h,OPCODE "CPUID"
+----------15D042BL02-------------------------
+INT 15 R - Intel Pentium Pro BIOS UPDATE - BIOS UPDATE CONTROL
+	AX = D042h
+	BL = 02h
+	BH = function
+	    01h enable update loading at initialization time
+	    02h check whether update loading is enabled
+	CX,DX,SI = segments of three 64K scratchpad areas for BIOS use
+Return: CF clear if successful
+	CF set on error
+	AH = status (see #00532)
+	    00h successful
+		BL = enabled/disabled flag
+	    86h not implemented
+	AL = OEM error (if AH is not 00h or 86h, otherwise undefined)
+	    00h successful
+Notes:	this API must be called from actual real mode, not V86 mode
+	at least 32K stack space must be available when this function is called
+	there is no call to disable update loading due to security risks; the
+	  BIOS setup can disable loading
+SeeAlso: AX=D042h/BL=00h,AX=D042h/BL=02h,AX=D042h/BL=03h
+----------15D042BL03-------------------------
+INT 15 R - Intel Pentium Pro BIOS UPDATE - READ BIOS UPDATE AREA
+	AX = D042h
+	BL = 03h
+	ES:DI -> buffer for microcode update block (see #00533)
+	ECX = two real-mode 64K scratchpad segments (upper and lower words)
+	DX = segment of 64K scratchpad area for BIOS use
+	SI = zero-based index number of update block to retrieve
+Return: CF clear if successful
+	CF set on error
+	AH = status
+	    00h successful
+		ES:DI buffer filled with 2048-byte update block
+	    86h not implemented
+	AL = OEM error (if AH is not 00h or 86h, otherwise undefined)
+	    00h successful
+Program: the Pentium Pro BIOS update allows the system BIOS or other software
+	  to install a microcode patch into the Pentium Pro processor
+Notes:	this API must be called from actual real mode, not V86 mode
+	at least 32K stack space must be available when this function is called
+SeeAlso: AX=D042h/BL=00h,AX=D042h/BL=01h,AX=D042h/BL=03h
+--------B-15D100DX0000-----------------------
+INT 15 - later PS/2s - GET NUMBER OF DEVICE DESCRIPTOR TABLE (DDT) ENTRIES
+	AX = D100h
+	DX = 0000h (reserved, must set to 0)
+Return: BL = size of one DDT entry, in bytes
+	CX = number of DDT entries
+	AH = return code (see #00534)
+	CF set on error
+	CF clear on success
+SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D101h,AX=D102h,AX=D103h,AX=D104h
+
+(Table 00534)
+Values for return code:
+ 00h	success
+ 01h	requested DDT entry not found
+ 02h	DDT data not valid
+ 86h	function not supported
+--------B-15D101-----------------------------
+INT 15 - later PS/2s - RETURN DEVICE DESCRIPTOR TABLE (DDT) ENTRY BY NUMBER
+	AX = D101h
+	BX = number of requested entry (starting with 1)
+	DX = 0000h (reserved, must be set to 0)
+	ES:DI -> buffer to contain DDT entry (see #00535)
+Return: AH = return code (see #00534)
+	CF set on error
+	CF clear on success
+	    ES:DI buffer filled with DDT entry
+SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D100h,AX=D102h,AX=D104h
+
+Format of Device Descriptor Table (DDT):
+Offset	Size	Description	(Table 00535)
+ 00h	BYTE	bits 7-4: reserved (set to 0)
+		bits 3-0: slot of device (0 = system board)
+ 01h	BYTE	bits 7-4: second interrupt for this device (0 = none)
+		bits 3-0: first interrupt for this device (0 = none)
+ 02h	BYTE	bits 7-4: second arbitration level for this device
+		bits 3-0: first arbitration level for this device
+ 03h	WORD	DDT indicators (see #00536)
+ 05h	BYTE	reserved (0)
+ 06h	WORD	device ID (0 = none)
+ 08h	WORD	starting address of first  I/O block (0 = none)
+ 0Ah	WORD	starting address of second I/O block (0 = none)
+ OCh	WORD	starting address of third  I/O block (0 = none)
+ OEh	DWORD	start of first non-system memory block (0 = none)
+ 12h	WORD	size of first non-system memory block (in kilobytes)
+ 14h	DWORD	start of second non-system memory block (0 = none)
+ 18h	WORD	size of second non-system memory block (in kilobytes)
+ 1Ah	BYTE	implementation identifier of the device
+ 1Bh	BYTE	implementation revision level of the device
+Note:	I/O block addresses and non-system memory addresses are listed in
+	  ascending order in each DDT entry.
+
+Bitfields for DDT indicators:
+Bit(s)	Description	(Table 00536)
+ 15	reserved (0)
+ 14	second arbitration level exists
+ 13	first arbitration level exists
+ 12	serial interface is RS-422
+ 11	not address limited
+ 10	DMA channel used
+ 9	second arbitration level can be shared
+ 8	first arbitration level can be shared
+ 7-0	reserved (0)
+--------B-15D102-----------------------------
+INT 15 - later PS/2s - RETURN DEVICE DESCRIPTOR TABLE (DDT) ENTRY BY I/O ADDRSS
+	AX = D102h
+	BX = entry number at which to start searching
+	CX = requested I/O port address
+	DX = 0000h (reserved, must be set to 0)
+	ES:DI -> buffer to contain DDT entry (see #00535)
+Return: AH = return code (see #00534)
+	BX = DDT entry number where I/O port was found, or total entries
+	     plus 1 if port was not found.
+	CF set on error
+	CF clear on success
+	    ES:DI buffer filled with DDT entry
+Desc:	the DDT is searched from the specified entry for the I/O port in CX,
+	  and the first entry in which it is found is returned
+SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D100h,AX=D101h,AX=D103h,AX=D104h
+--------B-15D103DX0000-----------------------
+INT 15 - later PS/2s - RETURN ENTIRE DDT
+	AX = D103h
+	DX = 0000h (reserved, must be set to 0)
+	ES:DI -> buffer to contain DDT entry (see #00535)
+Return: AH = return code (see #00534)
+	CF set on error
+	CF clear on success
+	    ES:DI buffer filled with DDT entry
+SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D100h,AX=D104h
+--------B-15D104-----------------------------
+INT 15 - later PS/2s - RETURN DEVICE DESCRIPTOR TABLE (DDT) ENTRY BY DEVICE ID
+	AX = D104h
+	BX = entry number at which to start searching
+	CX = requested device ID
+	DX = 0000h (reserved, must be set to 0)
+	ES:DI -> buffer to contain DDT entry (see #00535)
+Return: AH = return code (see #00534)
+	BX = DDT entry number where device ID was found, or total entries
+	      plus 1 if port was not found.
+	CF set on error
+	CF clear on success
+	    ES:DI buffer filled with DDT entry
+Desc:	the DDT is searched from the specified entry for the device ID in CX,
+	  and the first entry in which it is found is returned.
+SeeAlso: AH=C0h,AH=C7h,AH=C9h,AX=D100h,AX=D101h,AX=D103h
+--------B-15D2-------------------------------
+INT 15 - later PS/2s - RESERVED
+	AH = D2h
+	???
+Return: ???
+--------B-15D3-------------------------------
+INT 15 - later PS/2s - RESERVED
+	AH = D3h
+	???
+Return: ???
+--------B-15D4-------------------------------
+INT 15 - later PS/2s - GET PHYSICAL FIXED DISK DRIVE NUMBER (SELECTABLE BOOT)
+	AH = D4h
+	DL = logical fixed disk drive number
+Return: AH = return code (see #00537)
+	CF set on error
+	CF clear on success
+	    AL = physical fixed disk drive number
+
+(Table 00537)
+Values for return code:
+ 00h	success
+ 01h	specified logical drive number is invalid
+ 80h	function not supported (on PCjr and PC)
+ 86h	function not supported
+--------B-15D5-------------------------------
+INT 15 - later PS/2s - RESERVED
+	AH = D5h
+	???
+Return: ???
+--------B-15D600BL00-------------------------
+INT 15 - later PS/2s - READ BOOT DEVICE ID
+	AX = D600h
+	BL = 00h
+	DX = device ID
+Return: CF clear if successful
+	    AH = 00h
+	CF set on error
+	    AH = status (86h for function not supported)
+SeeAlso: AX=D600h/BL=01h,AX=D601h/BL=00h,AX=D602h
+--------B-15D600BL01-------------------------
+INT 15 - later PS/2s - WRITE BOOT DEVICE ID
+	AX = D600h
+	BL = 01h
+	DX = device ID
+Return: CF clear on success
+	    AH = 00h
+	CF set on error
+	    AH = status (86h for function not supported)
+SeeAlso: AX=D600h/BL=00h,AX=D601h/BL=01h
+--------B-15D601BL00-------------------------
+INT 15 - later PS/2s - READ BOOT DEVICE KEY
+	AX = D601h
+	BL = 00h
+	DX = device ID
+Return: CF clear on success
+	    AH = 00h
+	CF set on error
+	    AH = status (86h for function not supported)
+SeeAlso: AX=D600h/BL=00h,AX=D601h/BL=01h,AX=D602h
+--------B-15D601BL01-------------------------
+INT 15 - later PS/2s - WRITE BOOT DEVICE KEY
+	AX = D601h
+	BL = 01h
+	DX = device ID
+Return: CF clear on success
+	    AH = 00h
+	CF set on error
+	    AH = status (86h for function not supported)
+SeeAlso: AX=D600h/BL=01h,AX=D601h/BL=00h
+--------B-15D602-----------------------------
+INT 15 - later PS/2s - QUERY BOOT REFERENCE PARTITION
+	AX = D602h
+Return: CF clear on success
+	    AH = 00h
+	    AL = status of reference-partition boot request
+		00h boot not requested
+		01h boot requested
+	CF set on error
+	    AH = status (86h for function not supported)
+SeeAlso: AX=D601h/BL=00h
+--------X-15D800-----------------------------
+INT 15 - EISA SYSTEM ROM - READ SLOT CONFIGURATION INFORMATION
+	AX = D800h
+	CL = slot number (including embedded and virtual)
+Return: CF clear if successful
+	    AH = 00h
+	CF set on error
+	    AH = error code (80h,82h,83h,86h,87h)(see #00539)
+	AL = bit flags (see #00538)
+	BH = major revision level of configuration utility
+	BL = minor revision level of configuration utility
+	CX = checksum of configuration file
+	DH = number of device functions
+	DL = combined function information byte (see #00540)
+	SI:DI = 4-byte compressed ID (DI = bytes 0&1, SI = bytes 2&3)
+Note:	call with AL=80h if using 32-bit CS addressing mode instead of 16-bit
+SeeAlso: AX=D801h,AX=D804h
+
+Bitfields for EISA AL bit flags:
+Bit(s)	Description	(Table 00538)
+ 7	set if duplicate IDs
+ 6	set if product ID readable
+ 4,5	slot type (00=expansion, 01=embedded, 10=virtual device)
+ 0-3	duplicate ID number if bit 7 set
+SeeAlso: #00540
+
+(Table 00539)
+Values for EISA error code:
+ 80h	invalid slot number
+ 81h	invalid function number
+ 82h	EISA CMOS corrupt
+ 83h	empty slot
+ 84h	error clearing CMOS
+ 85h	EISA CMOS is full
+ 86h	invalid BIOS-FW function call
+ 87h	invalid system configuration
+ 88h	config utility version not supported
+
+Bitfields for EISA combined function information byte:
+Bit(s)	Description	(Table 00540)
+ 7	reserved
+ 6	slot has free-form data entries
+ 5	slot has port initialization entries
+ 4	slot has port-range entries
+ 3	slot has DMA entries
+ 2	slot has IRQ entries
+ 1	slot has memory entries
+ 0	slot has function type entries
+SeeAlso: #00538
+--------X-15D801-----------------------------
+INT 15 - EISA SYSTEM ROM - READ FUNCTION CONFIGURATION INFORMATION
+	AX = D801h
+	CH = function number to read
+	CL = slot number (including embedded and virtual)
+	DS:SI -> 320-byte buffer for standard configuration data block
+Return: CF clear if successful
+	    AH = 00h
+	    DS:SI buffer filled
+	CF set on error
+	    AH = error code (80h-83h,86h,87h) (see #00539)
+	BX destroyed
+Note:	call with AL=81h if using 32-bit CS addressing mode instead of 16-bit
+	this function is also supported by the Compaq SystemPro 486, but it
+	  uses more than 1297 bytes of stack.
+BUG:	some implementations appear to destroy the DF direction flag;
+	  the Novell DOS 7+ memory managers explicitly clear it afterwards.
+--------X-15D802-----------------------------
+INT 15 - EISA SYSTEM ROM - CLEAR NONVOLATILE MEMORY (EISA CMOS)
+	AX = D802h
+	BH = EISA config utility major revision level
+	BL = EISA config utility minor revision level
+Return: CF clear if successful
+	    AH = 00h
+	CF set on error
+	    AH = error code (84h,86h,88h) (see #00539)
+Note:	call with AL=82h if using 32-bit CS addressing mode instead of 16-bit
+SeeAlso: AX=D803h
+--------X-15D803-----------------------------
+INT 15 - EISA SYSTEM ROM - WRITE NONVOLATILE MEMORY
+	AX = D803h
+	CX = length of data structure (0000h = empty slot)
+		includes two bytes for config file checksum
+	DS:SI -> configuration data
+Return: CF clear if successful
+	    AH = 00h
+	CF set on error
+	    AH = error code (84h-86h) (see #00539)
+Note:	call with AL=83h if using 32-bit CS addressing mode instead of 16-bit
+SeeAlso: AX=D802h
+--------X-15D804-----------------------------
+INT 15 - EISA SYSTEM ROM - READ PHYSICAL SLOT
+	AX = D804h
+	CL = slot number (including embedded and virtual)
+Return: CF clear if successful
+	    AH = 00h
+	CF set on error
+	    AH = error code (80h,83h,86h) (see #00539)
+	SI:DI = 4-byte compressed ID (DI = bytes 0&1, SI = bytes 2&3)
+Note:	call with AL=84h if using 32-bit CS addressing mode instead of 16-bit
+SeeAlso: AX=D800h
+--------b-15D820-----------------------------
+INT 15 - Compaq LTE Lite - GET ???
+	AX = D820h
+	DS:SI -> 17-byte buffer for ???
+Return: DS:SI buffer filled (first byte is length of remaining data, unless
+	  it is greater than 10h, in which case the second byte is 00h and no
+	  other data is returned)
+Note:	this function is also supported by Compaq's EISA System ROM, Contura
+	  486/486c/486cx and recent DESKPRO/i ROMs
+SeeAlso: AX=D821h
+--------b-15D821-----------------------------
+INT 15 - Compaq LTE Lite - SET ???
+	AX = D821h
+	DS:SI -> counted string (should not be more than 16 bytes)
+Return: AH = 00h
+Note:	this function is also supported by Compaq's EISA System ROM, Contura
+	  486/486c/486cx and recent DESKPRO/i ROMs
+SeeAlso: AX=D820h
+--------b-15D822BL00-------------------------
+INT 15 - Compaq EISA System ROM 04/08/93 - GET ???
+	AX = D822h
+	BL = 00h
+	CX = size of buffer or 0000h to retrieve required buffer size
+	DS:SI -> buffer for ??? (if CX nonzero)
+Return: CF clear if successful
+	    AH = 00h
+	    DH = 08h
+	    CX = required buffer size to retrieve all data (if CX=0 on entry)
+	    DS:SI buffer filled (if CX nonzero on entry)
+	CF set on error (BL nonzero)
+	    AH = 86h
+--------b-15D823-----------------------------
+INT 15 - Compaq EISA System ROM 04/08/93 - ???
+	AX = D823h
+	BL = subfunction??? (00h or 80h)
+	BH = ???
+	DS:SI -> buffer for ??? (see #00541)
+Return: CF clear if successful
+	    AH = 00h
+	    DH = 08h
+	    DL = ???
+	CF set on error
+	    AH = error code
+		86h BL neither 00h nor 80h
+		87h ???
+
+Format of Compaq EISA buffer:
+Offset	Size	Description	(Table 00541)
+ 00h	BYTE	???
+ 01h	WORD	???
+ 03h	BYTE	???
+ 04h	WORD	???
+ 06h	WORD	???
+	???
+----------15D824-----------------------------
+INT 15 - Compaq EISA System ROM 04/08/93 - ???
+	AX = D824h
+	CX = ???
+	DS:SI -> ASCIZ string containing ???
+Return: CF clear if successful
+	    AH = 00h
+	    CX = ???
+	CF set on error
+	    AH = error code
+		87h ??? failed
+		88h ???
+Note:	these functions are only available if ??? from keyboard controller
+	  command C0h
+----------15D825-----------------------------
+INT 15 - Compaq EISA System ROM 04/08/93 - ???
+	AX = D825h
+	CX = ???
+	SI = ???
+	DI = ???
+	???
+Return: CF clear if successful
+	    AH = 00h
+	    CX = ???
+	CF set on error
+	    AH = error code
+		87h ??? failed
+		88h ???
+		    CX = ???
+Note:	these functions are only available if ??? from keyboard controller
+	  command C0h
+----------15D826-----------------------------
+INT 15 - Compaq EISA System ROM 04/08/93 - ???
+	AX = D826h
+	BX = ???
+	CX = size of buffer in bytes
+	DS:SI -> buffer for ???
+	???
+Return: CF clear if successful
+	    AH = 00h
+	    CX = ???
+	CF set on error
+	    AH = error code
+		87h ??? failed
+		88h ???
+Note:	these functions are only available if ??? from keyboard controller
+	  command C0h
+--------X-15D8-------------------------------
+INT 15 - EISA SYSTEM ROM - 32-bit CS ADDRESSING MODE CALLS
+	AH = D8h
+	AL = 80h to 84h
+	other registers as appropriate for AL=00h to 04h
+Return: as appropriate for AL=00h to 04h
+Note:	these functions are identical to AX=D800h to D804h, except that they
+	  should be called when using 32-bit CS addressing mode (pointers use
+	  ESI rather than SI as offset) instead of 16-bit addressing mode
+SeeAlso: AX=D800h,AX=D801h,AX=D802h,AX=D803h,AX=D804h
+--------b-15D8-------------------------------
+INT 15 - Compaq EISA System ROM 04/08/93 - 32-bit CS ADDRESSING MODE CALLS
+	AH = D8h
+	AL = A0h to A6h
+	other registers as appropriate for AL=20h to 26h
+Return: as appropriate for AL=20h to 26h
+Note:	these functions are identical to AX=D820h to D826h, except that they
+	  should be called when using 32-bit CS addressing mode
+----------15DA-------------------------------
+INT 15 U - AMI PCI BIOS v1.00.05.AX1 - ???
+	AH = DAh
+	AL = function (00h-08h,12h,14h,15h,19h,88h-8Eh,92h,99h)
+	other registers vary by function
+Return: CF clear if successful
+	    varies by function
+	CF set on error
+	    AH = error code (86h unsupported [sub]function)
+Note:	functions not listed above always return CF set and AH=86h; in the
+	  examined BIOS, functions 02h-04h,06h-07h,89h-8Bh, and 8Dh also
+	  always return CF set and AH=86h
+SeeAlso: AX=DA00h,AX=DA01h,AX=DA88h,AX=DA99h,AX=DB00h
+--------b-15DA00-----------------------------
+INT 15 U - AMI PCI BIOS - ???
+	AX = DA00h
+	CL = subfunction
+	    00h ???
+	    01h ???
+	    02h get ???
+	???
+Return: CF clear if successful
+	    ???
+	CF set on error
+	    AH = error code (86h unsupported subfunction)
+Note:	in the v1.00.05.AX1 BIOS, subfunctions 00h and 01h always return
+	  failure
+SeeAlso: AX=DA01h
+--------b-15DA01-----------------------------
+INT 15 U - AMI PCI BIOS - CPU SPEED CONTROL
+	AX = DA01h
+	CL = subfunction (00h-02h)
+	    00h set low CPU speed
+	    01h set high CPU speed
+	    02h get current CPU speed
+Return: CF clear if successful
+	    AH = current/new CPU speed (00h low, 01h high)
+	    AL = ??? (00h)
+	CF set on error
+	    AH = error code (86h unsupported subfunction)
+Notes:	in the v1.00.05.AX1 BIOS, subfunctions 00h and 01h are NOPs in both
+	  protected and V86 modes due to a test of MSW bit 0
+	setting the CPU speed also generates the same audible signals generated
+	  when manually switching speeds with Ctrl-Alt-Gray- and Ctrl-Alt-Gray+
+BUG:	the BIOS apparently intends to return CF set if ???, but fails to use
+	  a different exit path in that case, resulting in CF clear
+----------15DA05-----------------------------
+INT 15 U - AMI PCI BIOS - GET ??? AND BIOS REVISION STRINGS
+	AX = DA05h
+	ES:SI -> 8-byte buffer for ??? and BIOS revision strings
+Return: CF clear
+	ES:SI buffer filled
+	AL = 00h
+	CX = ??? (0000h)
+Notes:	for BIOS v1.00.05.AX1, the ??? string is "IDNO" and the BIOS revision
+	  string is "AX1 "
+SeeAlso: AX=DA15h,AX=DB04h
+----------15DA08-----------------------------
+INT 15 U - AMI PCI BIOS - ???
+	AX = DA08h
+	???
+Return: CF clear if successful
+	    ???
+	CF set on error
+	    AH = error code (86h unsupported subfunction)
+Note:	in the examined v1.00.05.AX1 BIOS, this call always returns failure
+----------15DA12-----------------------------
+INT 15 U - AMI PCI BIOS - v1.00.05.AX1 - ???
+	AX = DA12h
+	CL = subfunction
+	    00h ???
+	    01h	???
+	    02h get ???
+	    03h ???
+	    04h ???
+	???
+Return: CF clear if successful
+	    ???
+	CF set on error
+	    AH = error code (86h unsupported subfunction)
+Desc:	??? performs various manipulations on system chipset registers
+Notes:	subfunctions 00h and 01h are NOPs in protected and V86 modes due to
+	  a test of MSW bit 0
+	subfunctions 00h-02h always return success
+----------15DA14-----------------------------
+INT 15 U - AMI PCI BIOS - GET/SET ???
+	AX = DA14h
+	CL = subfunction
+	    00h read
+	    01h write
+		DH = new value for ??? (00h-02h)
+	DL = index of ??? (00h-03h, but not range-checked)
+	???
+Return: CF clear if successful
+	    DH = current value of ??? if reading
+	CF set on error
+	    AH = error code (86h unsupported subfunction)
+Note:	the values for indexes 00h and 01h are stored in CMOS RAM location 19h,
+	  and the values for 02h and 03h are stored in location 36h
+BUG:	the v1.00.05.AX1 BIOS range-checks DH on subfunction 00h instead of
+	  subfunction 01h, even though DH is never used by subfunction 00h
+----------15DA15-----------------------------
+INT 15 U - AMI PCI BIOS - GET ??? AND BIOS REVISION STRINGS
+	AX = DA15h
+	ES:DI -> 8-byte buffer for ??? and BIOS revision strings
+Return: CF clear
+	ES:DI buffer filled
+	AL = 00h
+Note:	for BIOS v1.00.05.AX1, the ??? string is "IDNO" and the BIOS revision
+	  string is "AX1 "
+SeeAlso: AX=DA05h,AX=DB04h
+----------15DA19-----------------------------
+INT 15 U - AMI PCI BIOS - GET/SET ???
+	AX = DA19h
+	CL = subfunction
+	    00h get first ???
+	    01h get second ???
+	    02h set first ???
+		BX = ???
+		DX = ???
+	    03h set second ???
+		BX = ???
+		DX = ???
+Return: CF clear if successful
+	    AX = 0000h
+	    BX,DX = ??? (subfunctions 00h and 01h only)
+	CF set on error
+	    AH = error code (86h unsupported subfunction)
+Note:	the first ??? is stored in CMOS RAM locations 1Bh-1Eh, the second in
+	  locations 1Fh-22h in the v1.00.05.AX1 BIOS
+--------b-15DA20-----------------------------
+INT 15 U - AMI PCI BIOS v1.00.12.AX1T - CMOS RAM BITFIELD MANIPULATION
+	AX = DA20h
+	BL = subfunction
+	    00h set CMOS data field
+		BH = CMOS data field number (00h-4Dh)
+		CH = new value for bitfield (in lowest bits of register)
+	    01h read CMOS data field
+		BH = CMOS data field number (00h-4Dh)
+		Return: CH = value of bitfield
+			CL = mask of valid bits
+		Note:	both CL/CH shifted to move valid bits into lowest pos
+	    02h set CMOS byte
+		CL = CMOS RAM address (00h-7Fh)
+		CH = new value for CMOS byte
+	    03h get CMOS byte
+		CL = CMOS RAM address (00h-7Fh)
+		Return: CH = value of CMOS byte
+	    04h update CMOS checksums
+		Note:	sets 2Eh/2Fh to checksum of 10h-2Dh and 7Eh/7Fh to
+			  checksum of 48h-7Dh
+	    05h verify CMOS checksums
+		Return:	CF clear if checksums OK
+			    AH = 00h
+			CF set if checksum mismatch
+			    AH = 01h
+Return: CF clear if successful
+	    AH = 00h
+	CF set on error
+	    AH = error code (86h unsupported function/data field)
+Notes:	this function was not supported by the v1.00.05.AX1 BIOS, but had been
+	  added by 1.00.12.AX1T
+	after using subfunctions 00h or 02h, the application must call
+	  subfunction 04h to update the checksums to prevent an error the next
+	  time the system is booted
+
+(Table 00542)
+Values for AMI BIOS v1.00.12.AX1T CMOS bitfield identifier:
+ ID	address	bit(s)	contents
+ 00h	1Ah	7-6
+ 01h	1Dh	7-6
+ 02h	6Eh	1
+ 03h	77h	0
+ 04h	77h	1
+ 05h	77h	2
+ 06h	77h	3
+ 07h	77h	5
+ 08h	77h	6
+ 09h	77h	7
+ 0Ah	78h	7	power management enabled???
+ 0Bh	78h	6
+ 0Ch	10h	7-4	first floppy drive type
+ 0Dh	10h	3-0	second floppy drive type
+ 0Eh	11h	7
+ 0Fh	20h	4-0	selected language for error messages/setup utility
+ 10h	11h	2-1
+ 11h	11h	4
+ 12h	11h	0
+ 13h	11h	3
+ 14h	13h	7
+ 15h	13h	6-5
+ 16h	13h	4-2
+ 17h	19h	7
+ 18h	19h	6
+ 19h	19h	5
+ 1Ah	19h	4
+ 1Bh	1Eh	2-0
+ 1Ch	1Bh	7-6
+ 1Dh	1Ch	7
+ 1Eh	1Ch	3
+ 1Fh	1Ah	5-4
+ 20h	1Dh	5-4
+ 21h	1Bh	5-4
+ 22h	1Ch	6
+ 23h	1Ch	2
+ 24h	1Ah	3-2
+ 25h	1Dh	3-2
+ 26h	1Bh	3-2
+ 27h	1Ch	5
+ 28h	1Ch	1
+ 29h	1Ah	1-0
+ 2Ah	1Dh	1-0
+ 2Bh	1Bh	1-0
+ 2Ch	1Ch	4
+ 2Dh	1Ch	0
+ 2Eh	50h	7-0
+ 2Fh	51h	7-0
+ 30h	52h	7-0
+ 31h	53h	7-0
+ 32h	60h	0
+ 33h	60h	0
+ 34h	60h	0
+ 35h	60h	0
+ 36h	60h	0
+ 37h	60h	0
+ 38h	60h	1
+ 39h	61h	7
+ 3Ah	60h	2
+ 3Bh	61h	6-4
+ 3Ch	61h	2-0
+ 3Dh	60h	7-6
+ 3Eh	60h	5-4
+ 3Fh	78h	5-4
+ 40h	6Eh	5
+ 41h	1Eh	3
+ 42h	6Eh	0
+ 43h	6Eh	2
+ 44h	6Fh	1-0
+ 45h	6Fh	1-0
+ 46h	28h	4-2
+ 47h	28h	7-5
+ 48h	6Eh	4
+ 49h	6Eh	3
+ 4Ah	76h	7-0
+ 4Bh	77h	4
+ 4Ch	11h	6
+ 4Dh	1Fh	7-0
+----------15DA88-----------------------------
+INT 15 U - AMI PCI BIOS - GET EXTENDED MEMORY SIZE
+	AX = DA88h
+Return: CF clear (successful)
+	AX = 0000h
+	CL:BX = extended memory size in KBytes
+SeeAlso: AH=88h
+----------15DA8C-----------------------------
+INT 15 U - AMI PCI BIOS - GET BIOS AND CHIPSET IDENTIFICATION
+	AX = DA8Ch
+	CL = subfunction
+	    00h get BIOS version string
+		ES:DI -> 12-byte buffer for version string
+	    01h get chipset identification
+		BL = what to retrieve
+		    (00h host/PCI bridge,01h motherboard chipset)
+		ES:DI -> 12-byte buffer for chipset identification (see #00543)
+Return: CF clear if successful
+	    ES:DI buffer filled
+	CF set on error
+	    AH = error code (86h unsupported subfunction)
+Notes:	the v1.00.05.AX1 BIOS returns "1.00.05.AX1 " as its version string
+	subfunction 01h returns the five bytes read from the PCI configuration
+	  registers 00h-05h (see #00878), padded to 12 bytes with NULs
+SeeAlso: AX=DB04h,PORT C000h"Neptune"
+
+Format of AMI PCI BIOS chipset identification:
+Offset	Size	Description	(Table 00543)
+ 00h	WORD	vendor ID (see #00732 at AX=B102h)
+		8086h = Intel
+ 02h	WORD	device ID
+		0484h (BL=01h)
+		04A3h (BL=00h)
+ 04h	BYTE	low byte of PCI Command Register
+ 05h  7 BYTEs	unused (00h)
+----------15DA8E-----------------------------
+INT 15 U - AMI PCI BIOS - ???
+	AX = DA8Eh
+	???
+Return: CF clear if successful
+	    ???
+	CF set on error
+	    AH = error code (86h unsupported subfunction)
+Note:	in the	v1.00.05.AX1 BIOS, this call always returns failure
+----------15DA92-----------------------------
+INT 15 U - AMI PCI BIOS - GET CPU TYPE AND SPEED
+	AX = DA92h
+Return: CF clear (successful)
+	AL = CPU stepping (see also #00529 at INT 15/AH=C9h)
+	AH = CPU model
+	BL = CPU family (05h = Pentium, etc.)
+	CX = external clock speed in MHz (BCD)
+	    (0040h,0050h,0060h,0066h are possible return values on my
+	      Pentium with the Intel "Neptune" chipset)
+	EAX high word destroyed
+Note:	90 MHz and faster Pentium CPUs can be configured to run at varying
+	  multiples of the external clock speed, i.e. a typical 90 MHz Pentium
+	  system will run the motherboard at 60 MHz (my 90 MHz Pentium returns
+	  0060h in CX)
+SeeAlso: AH=C9h
+----------15DA99-----------------------------
+INT 15 U - AMI PCI BIOS - GET/SET ??? FLAG
+	AX = DA99h
+	CL = subfunction
+	    00h check if ???
+	    01h set ??? flag
+	    02h clear ??? flag
+Return: CF clear if successful
+	    AH = ??? (00h,01h)
+	    AL = 00h
+	CF set on error
+	    AH = error code (86h unsupported subfunction)
+Note:	the flag is stored in bit 0 of CMOS RAM location 2Ch for BIOS
+	  v1.00.05.AX1
+--------b-15DB00-----------------------------
+INT 15 U - AMI BIOS - Flash ROM - READ FLASH BIOS
+	AX = DB00h
+	DS:SI -> parameter block (see #00544)
+	ES:DI -> buffer for copied information
+Return: CF clear if successful
+	CF set on error
+	    AH = status (86h if not implemented)
+	DS,ES destroyed, possibly other registers
+Note:	used by FMUP.EXE, Intel's Flash Memory Update utility
+SeeAlso: AH=DAh,AX=DB01h,AX=DB04h
+
+Format of AMI BIOS Flash ROM parameter block:
+Offset	Size	Description	(Table 00544)
+ 00h 32 BYTEs	ASCIZ description of the file's contents
+ 20h	BYTE	Logical area type (see #00545)
+ 21h	DWORD	logical area size (overall size of area)
+ 25h	BYTE	flag: load from file (FF=yes, 00=no)
+ 26h	BYTE	flag: reboot after update (FF=yes, 00=no)
+ 27h	BYTE	flag: update entire image (FF=yes, 00=no)
+ 28h 24	BYTEs	ASCIZ logical area name (cooresponds to offset 20)
+		"System BIOS"
+		"Logo Data Area", etc.
+ 40h 15 BYTEs	ASCIZ time stamp string: MM/DD/YY-HH:MM
+ 4Fh	BYTE	checksum for this header (sum of all bytes except this one)
+		if checksum would be 00h,01h, or FFh, it is set to 2Ah
+ 50h	DWORD	this file's starting address (offset in image)
+ 54h	DWORD	size of image chunk in this file
+ 58h	BYTE	logical area type - same as offset 20h
+ 59h	BYTE	flag: last file in chain (FF=yes, 00=no)
+ 5Ah  6 BYTEs	ASCIZ signature "FLASH"
+ 60h 16 BYTEs	ASCIZ filename of next file in chain
+ 70h 16 BYTEs	ASCIZ BIOS reserved string (usually version #)
+Notes:	this block is identical in format to the 128-byte header on an AMI
+	  BIOS Update file
+	for AX=DB00h, the following fields must be specified: 50h,54h,58h;
+	  the fields at offset 20h and 5Ah should also be set if possible
+	the fields at offsets 40h and 70h will be set on return, if available
+SeeAlso: #00546
+--------b-15DB01-----------------------------
+INT 15 U - AMI BIOS - Flash ROM - GET BIOS SUBSYSTEM INFORMATION
+	AX = DB01h
+	CL = BIOS subsystem information identifier (see #00545)
+Return: CF clear if successful
+	    AX = 0000h
+	    ES:DI -> 56-byte record describing subsystem (see #00546)
+	CF set on error
+	    AH = status
+		01h nonexistent subsystem
+		86h function not supported
+	    AL = 00h
+Note:	used by FMUP.EXE, Intel's Flash Memory Update utility
+SeeAlso: AX=DB00h,AX=DB02h
+
+(Table 00545)
+Values for AMI BIOS subsystem identifier:
+ 00h	recovery code
+ 01h	system BIOS
+ 02h	PCI configuration data
+ 03h	OEM logo data area (see #00547)
+ 04h	system BIOS/Language Set (one system)
+	configuration utility (another system)
+SeeAlso: #00546
+
+Format of AMI BIOS subsystem information:
+Offset	Size	Description	(Table 00546)
+ 00h	BYTE	subsystem identifier/logical area type (see #00545)
+ 01h	DWORD	subsystem (FlashROM page) size in bytes
+ 05h	BYTE	flag: loadable from file (FFh=yes)
+ 06h	BYTE	flag: reboot after update (FFh=yes)
+ 07h	BYTE	flag: update entire image (FFh=yes)
+ 08h 24 BYTEs	subsystem/logical area name
+ 20h	BYTE	subsystem identifier???
+ 21h	BYTE	flag: reprogrammable if FFh
+ 22h	BYTE	??? (01h,02h seen)
+ 23h  5 BYTEs	??? (apparently always 00h)
+ 28h 16 BYTEs	BIOS reserved string (usually version number)
+SeeAlso: #00544
+
+Format of AMI OEM Logo data area:
+Offset	Size	Description	(Table 00547)
+ 00h  8 BYTEs	signature
+		"TEXTLOGO" if text-mode OEM logo
+		8 DUP (FFh) if unused
+ 08h	WORD	offset of logo font definition table
+ 0Ah	WORD	offset of logo data
+ 0Ch	WORD	size of logo font table in words
+ 0Eh	WORD	offset of upper left corner of logo in video page
+ 10h	WORD	width of logo
+ 12h	WORD	height of logo
+ 14h	BYTE	reserved???
+ var	var	logo font definition (16 bytes per character)
+ var	var	logo data as character/attribute pairs
+Note:	the attribute for the logo characters specifies which font will be used
+	  for that character.  If bit 3 is cleared, the normal system font is
+	  used; if bit 3 is set, the logo font is used, with screen colors
+	  adjusted to match the corresponding non-bright attribute for the
+	  system font
+SeeAlso: #00545,#00546
+--------b-15DB02-----------------------------
+INT 15 U - AMI BIOS - Flash ROM - GET SIZE OF FLASH ROM PROGRAMMING CODE
+	AX = DB02h
+Return: CF clear
+	AX = 0000h
+	BX = size of ROM programming code in bytes
+Note:	used by FMUP.EXE, Intel's Flash Memory Update utility
+SeeAlso: AX=DB00h,AX=DB03h
+--------b-15DB03-----------------------------
+INT 15 U - AMI BIOS - Flash ROM - GET FLASH ROM PROGRAMMING CODE
+	AX = DB03h
+	DS:SI -> ???
+	ES:DI -> buffer for Flash ROM programming code
+	BX = ???
+	DX = ???
+Return: CF clear if successful
+	    AH = ???
+	    BX = ???
+	    DX = ???
+	CF set on error
+	    AH = error code
+Notes:	the entry point for the copied code (which is fully relocatable) is
+	  the very first byte (see #00548)
+	used by FMUP.EXE, Intel's Flash Memory Update utility
+SeeAlso: AX=DB00h,AX=DB02h
+
+(Table 00548)
+Call AMI BIOS ??? code with:
+	AL = function
+	    00h erase Flash ROM block
+		CX = ???
+			bit 8: address line A16 inverted
+		???
+	    01h program new data into Flash ROM
+		???
+	    02h perform cold reboot
+	DS:SI -> ??? (see #00549)
+	ES:DI -> ???
+Return: AH = status
+	    00h successful
+	    01h invalid function
+	    02h ???
+	    03h ???
+	    04h ???
+Note:	DS:SI and ES:DI are ignored for function 02h
+
+Format of AMI BIOS Flash ROM programming parameters:
+Offset	Size	Description	(Table 00549)
+ 00h 32 BYTEs	???
+ 20h	BYTE	BIOS section number
+ 21h	DWORD	length of BIOS code/data in bytes
+ 25h 43 BYTEs	???
+ 50h	DWORD	???
+ 54h 44 BYTEs	???
+SeeAlso: #00548
+--------b-15DB04-----------------------------
+INT 15 U - AMI BIOS - Flash ROM - GET BIOS REVISION
+	AX = DB04h
+Return: CF clear if supported
+	    BL:BH:DL:DH = BIOS revision string
+		(e.g. 'AX1 ' for v1.00.05.AX1, 'AV0M' for v1.00.03.AV0M)
+	    CL = flag: DH valid?
+		00h ignore DH; ignore DL as well if 20h (space)
+		01h ignore DH if 20h (space)
+	    CH = BIOS status
+		00h normal mode
+		01h ROM recovery mode
+	    AL = ??? (02h)
+Note:	used by FMUP.EXE, Intel's Flash Memory Update utility
+SeeAlso: AX=DA05h,AX=DA15h,AX=DA8Ch,AX=DB00h,AX=DB03h
+--------Q-15DE00-----------------------------
+INT 15 - DESQview - GET PROGRAM NAME
+	AX = DE00h
+Return: AX = offset into DESQVIEW.DVO of program most recently selected from
+	      the "Switch Windows" menu (see #00550)
+Note:	always returns AX=0000h under DESQview/X
+SeeAlso: AX=DE07h
+
+Format of program entry in DESQVIEW.DVO:
+Offset	Size	Description	(Table 00550)
+ 00h	BYTE	length of name (FFh if end of file)
+ 01h  N BYTEs	name
+      2 BYTEs	keys to invoke program (second = 00h if only one key used)
+	BYTE	program type
+		00h normal program
+		04h divider
+		80h Delete a Program
+		81h Change a Program
+	WORD	??? apparently always 0000h
+--------Q-15DE01-----------------------------
+INT 15 - DESQview - UPDATE "OPEN WINDOW" MENU
+	AX = DE01h
+Return: nothing
+Notes:	reads DESQVIEW.DVO, disables Open menu if file not in current directory
+	NOP for DESQview/X
+--------Q-15DE02-----------------------------
+INT 15 - DESQview 1.x only - SET ??? FLAG FOR CURRENT WINDOW
+	AX = DE02h
+Return: nothing
+Note:	this call is a NOP in DV 2.x
+SeeAlso: AX=DE03h
+--------Q-15DE03-----------------------------
+INT 15 - DESQview 1.x only - GET ??? FOR CURRENT WINDOW
+	AX = DE03h
+Return: AX = ??? for current window
+	BX = ??? for current window
+Note:	this call is a NOP in DV 2.x
+SeeAlso: AX=DE02h
+--------Q-15DE04-----------------------------
+INT 15 - DESQview - GET AVAILABLE COMMON MEMORY
+	AX = DE04h
+Return: BX = bytes of common memory available
+	CX = largest block available
+	DX = total common memory in bytes
+SeeAlso: AX=DE05h,AX=DE06h
+--------Q-15DE05-----------------------------
+INT 15 - DESQview - GET AVAILABLE CONVENTIONAL MEMORY
+	AX = DE05h
+Return: BX = KB of memory available
+	CX = largest block available
+	DX = total conventional memory in KB
+SeeAlso: AX=DE04h,AX=DE06h
+--------Q-15DE06-----------------------------
+INT 15 - DESQview - GET AVAILABLE EXPANDED MEMORY
+	AX = DE06h
+Return: BX = KB of expanded memory available
+	CX = largest block available
+	DX = total expanded memory in KB
+SeeAlso: AX=DE04h,AX=DE05h
+--------Q-15DE07-----------------------------
+INT 15 - DESQview - "APPNUM" - GET CURRENT PROGRAM'S NUMBER
+	AX = DE07h
+Return: AX = number of program as it appears on the "Switch Windows" menu
+Note:	this API call may be made from a hardware interrupt handler
+SeeAlso: AX=DE00h
+--------Q-15DE08-----------------------------
+INT 15 - DESQview - GET ???
+	AX = DE08h
+Return: AX = 0000h if ??? is not set to the current task
+	     0001h if ??? is set to the current task
+--------Q-15DE09-----------------------------
+INT 15 - DESQview - UNIMPLEMENTED
+	AX = DE09h
+Return: nothing (NOP in DV 1.x and 2.x)
+--------Q-15DE0A-----------------------------
+INT 15 - DESQview v2.00+ - "DBGPOKE" - DISPLAY CHARACTER ON STATUS LINE
+	AX = DE0Ah
+	BL = character
+Return: character displayed, next call will display in next position (which
+	wraps back to the start of the line if off the right edge of screen)
+Notes:	displays character on bottom line of *physical* screen, regardless
+	  of current size of window (even entirely hidden)
+	does not know about graphics display modes, just pokes the characters
+	  into display memory
+	this API call may be made from a hardware interrupt handler
+SeeAlso: AX=1003h
+--------Q-15DE0B-----------------------------
+INT 15 - DESQview v2.00+ - "APILEVEL" - DEFINE MINIMUM API LEVEL REQUIRED
+	AX = DE0Bh
+	BL = API level minor version number
+	BH = API level major version number
+Return: AX = maximum API level (AH = major, AL = minor)
+Notes:	if the requested API level is greater than the version of DESQview, a
+	  "You need a newer version" error window is popped up
+	the API level defaults to 1.00, and is inherited by child tasks
+--------Q-15DE0C-----------------------------
+INT 15 - DESQview v2.00+ - "GETMEM" - ALLOCATE "SYSTEM" MEMORY
+	AX = DE0Ch
+	BX = number of bytes
+Return: ES:DI -> allocated block or 0000h:0000h (DV 2.26+)
+Note:	use SETERROR (AX=DE15h) to avoid a user prompt if there is insufficient
+	  system memory
+SeeAlso: AX=1001h,AX=102Eh,AX=DE0Dh,AX=DE15h,AX=DE19h
+--------Q-15DE0D-----------------------------
+INT 15 - DESQview v2.00+ - "PUTMEM" - DEALLOCATE "SYSTEM" MEMORY
+	AX = DE0Dh
+	ES:DI -> previously allocated block
+Return: nothing
+SeeAlso: AX=1002h,AX=DE0Ch
+--------Q-15DE0E-----------------------------
+INT 15 - DESQview v2.00+ - "FINDMAIL" - FIND MAILBOX BY NAME
+	AX = DE0Eh
+	ES:DI -> name to find (see #00551)
+	CX = length of name
+Return: BX = 0000h not found
+	     0001h found
+		DS:SI = object handle
+SeeAlso: AH=12h/BH=11h,AH=12h/BH=12h"GETNAME"
+
+(Table 00551)
+Values for special DESQview mailbox names:
+ "COM1" ... "COM4"	RBcomm using COM1 ... COM4
+ "DESQview/X Help Engine"
+ "DESQview/X Network Server"  Network Manager
+ "DESQview X Server0"	X-Windows server
+ "DESQview X Server7"	X-Windows printing service
+ "INBOX"		DESQview/X LPD requests
+ "OUTBOX"		DESQview/X LPD responses
+ "WAITBOX"		semaphore to synchronize DESQview/X LPD communications
+ "_DVNM_"		DV/X v1.10 network manager
+--------Q-15DE0F-----------------------------
+INT 15 - DESQview v2.00+ - ENABLE DESQview EXTENSIONS
+	AX = DE0Fh
+Return: AX and BX destroyed (seems to be bug, weren't saved&restored)
+Notes:	sends a manager stream with opcodes AEh, BDh, and BFh to task's window
+	enables an additional mouse mode
+--------Q-15DE10-----------------------------
+INT 15 - DESQview v2.00+ - "PUSHKEY" - PUT KEY INTO KEYBOARD INPUT STREAM
+	AX = DE10h
+	BH = scan code
+	BL = character
+Return: nothing
+Notes:	a later read will get the keystroke as if it had been typed by the user
+	multiple pushes are read last-in first-out
+	if a script exists for the pushed key in the current application, the
+	  script will be executed
+	early copies of DV 2.00 destroy AX, BX, ES, and DI
+SeeAlso: INT 16/AH=05h
+--------Q-15DE11BL00-------------------------
+INT 15 - DESQview v2.00+ - "JUSTIFY" - EN/DISABLE AUTOM. WINDOW JUSTIFICATION
+	AX = DE11h
+	BL = 00h      viewport will not move automatically
+	     nonzero  viewport will move to keep cursor visible (default)
+Return: nothing
+--------Q-15DE12BX0000-----------------------
+INT 15 - DESQview v2.01+ - "CSTYLE" - SET "C"-COMPATIBLE CONTROL CHAR INTERPRET
+	AX = DE12h
+	BX = 0000h    select normal style (linefeed only moves down)
+	     nonzero  select C style (linefeed moves to start of next line)
+Return: nothing
+Note:	set on a per-task basis, and inherited from the parent task
+--------Q-15DE13-----------------------------
+INT 15 - DESQview v2.20+ - "GETCRIT" - GET CRITICAL NESTING COUNT
+	AX = DE13h
+Return: BX = number of calls to BEGINC or ENTERC
+	      (see INT 15/AX=101Bh,INT 15/AX=DE1Ch) without matching ENDC
+	      (see INT 15/AX=101Ch)
+Note:	this API call may be made from within a hardware interrupt handler
+SeeAlso: AX=101Bh,AX=101Ch,AX=DE1Bh,AX=DE1Ch
+--------Q-15DE14-----------------------------
+INT 15 - DESQview v2.20+ - GET OBJECT TYPE
+	AX = DE14h
+	ES:DI -> object
+Return: BL = 00h not an object
+	     08h window or task
+	     09h mailbox
+	     0Ah keyboard
+	     0Bh timer
+	     0Ch objectq
+	     0Fh pointer
+	     10h panel
+SeeAlso: AX=1016h
+--------Q-15DE15-----------------------------
+INT 15 - DESQview v2.20+ - SET ERROR HANDLING
+	AX = DE15h
+	BL = error handling mode
+	    00h post system error on all error conditions
+	    01h return carry flag set on calls to ADDTO, SUBFROM, and WRITE
+		messages sent to mailboxes which fail due to lack of system
+		or common memory
+	    02h (v2.26+) same as 01h, but also return null pointer for GETMEM
+		calls which fail due to lack of system memory
+Return: nothing
+SeeAlso: AX=DE0Ch,AX=DE16h
+--------Q-15DE16-----------------------------
+INT 15 - DESQview v2.20+ - GET ERROR HANDLING
+	AX = DE16h
+Return: BL = current mode
+	    00h always post system error
+	    01h return carry flag set on failed mailbox writes
+	    02h return CF set on failed mailbox writes and NULL on failed
+		GETMEM calls
+SeeAlso: AX=DE15h
+--------Q-15DE17-----------------------------
+INT 15 - DESQview v2.20-2.25 - reserved
+	AX = DE17h
+Return: pops up "Programming error" window
+Note:	AX = 1117h is NOT identical to this call under DESQview 2.20 thru 2.25
+SeeAlso: AX=1117h
+--------Q-15DE17-----------------------------
+INT 15 - DESQview v2.26+ - "ASSERTMAP" - GET/SET MAPPING CONTEXT
+	AX = DE17h
+	BX = function
+	    0000h   get current mapping context without setting
+	    nonzero set new mapping context to BX
+Return: BX = mapping context in effect before call
+Notes:	mapping contexts determine conventional-memory addressability; setting
+	  a mapping context ensures that the associated program and data areas
+	  are in memory for access.  Usable by drivers, TSRs and shared
+	  programs.
+	caller need not be running under DESQview
+	this API call may be made from a hardware interrupt handler
+SeeAlso: AX=1016h,AX=1117h,AX=DE21h,INT 2F/AX=1685h
+--------Q-15DE18-----------------------------
+INT 15 - DESQview v2.20+ - internal - ???
+	AX = DE18h
+	BP = function number
+	    high byte must be 10h
+	    low byte is function
+		00h set ???
+		    BL = ???  (00h-10h, video mode???)
+		    BH = value to store
+		03h set ???
+		    BL = ??? (stored in driver)
+		0Ah get ???
+		    ES:DI -> 18-byte buffer to hold ???
+Note:	calls video driver (NOP for Hercules driver,probably CGA and MCGA also)
+--------Q-15DE19-----------------------------
+INT 15 - DESQview v2.23+ - "GETCOMMON" - ALLOCATE "COMMON" MEMORY
+	AX = DE19h
+	BX = number of bytes to allocate
+Return: AX = 0000h successful
+		ES:DI -> allocated block
+	     nonzero insufficient memory
+Note:	this API call may be made from within a hardware interrupt handler
+SeeAlso: AX=DE0Ch,AX=DE15h,AX=DE1Ah
+--------Q-15DE1A-----------------------------
+INT 15 - DESQview v2.23+ - "PUTCOMMON" - DEALLOCATE "COMMON" MEMORY
+	AX = DE1Ah
+	ES:DI -> previously allocated block
+Return: AX = 0000h (successful)
+Note:	this function may be called from within a hardware interrupt handler
+SeeAlso: AX=DE0Dh,AX=DE19h
+--------Q-15DE1B-----------------------------
+INT 15 - DESQview v2.23+ internal - DECREMENT CRITICAL NESTING COUNT
+	AX = DE1Bh
+Return: nothing
+SeeAlso: AX=101Ch,AX=DE13h,AX=DE1Ch
+--------Q-15DE1C-----------------------------
+INT 15 - DESQview v2.23+ - "ENTERC" - INCREMENT CRITICAL NESTING COUNT
+	AX = DE1Ch
+Return: nothing
+Notes:	similar to AX=101Bh, but begins the critical region without ensuring
+	  that DOS is free
+	the official documentation states that this call should be paired with
+	  "ENDC" (AX=101Ch); no mention is made of AX=DE1Bh
+	this API call may be made from within a hardware interrupt handler
+SeeAlso: AX=101Bh,AX=101Ch,AX=DE13h,AX=DE1Bh
+--------Q-15DE1D-----------------------------
+INT 15 - DESQview v2.23+ - "PUTKEY" - FAKE USER KEYSTROKES
+	AX = DE1Dh
+	DX = segment of handle for task to receive keystroke
+	BL = character
+	BH = scan code
+Return: AX = 0000h if successful
+	   nonzero if receiver's keyboard buffer was full
+Notes:	the key is treated as though the user had pressed it, ignoring any
+	  script which may be bound to the key, and using the current field
+	  table if the keyboard object is in field processing mode
+	multiple PUTKEYs are seen in the order in which they are executed
+SeeAlso: AX=DE10h
+--------Q-15DE1E-----------------------------
+INT 15 - DESQview v2.23+ - "SCRNINFO" - GET TRUE VIDEO PARAMETERS
+	AX = DE1Eh
+Return: CL = actual number of rows on screen
+	CH = actual number of columns on screen
+	BL = actual video mode (may differ from INT 10/AH=0Fh return) (v2.26+)
+Note:	this API call may be made from a hardware interrupt handler
+SeeAlso: INT 10/AH=0Fh
+--------Q-15DE1F-----------------------------
+INT 15 - DESQview v2.23+ - "DOSUSER" - GET HANDLE OF TASK CURRENTLY USING DOS
+	AX = DE1Fh
+Return: BX = segment of task handle or 0000h if no tasks are using DOS
+Note:	this API call may be made from within a hardware interrupt handler
+SeeAlso: AX=DE13h,INT 21/AH=34h
+--------Q-15DE20-----------------------------
+INT 15 - DESQview v2.26+ - "DISPATCHINT" - INTERRUPT ANOTHER TASK
+	AX = DE20h
+	BX = segment of handle of task to interupt
+	DX:CX -> FAR interrupt routine
+	BP,SI,DI,DS,ES as required by interrupt routine
+Return: nothing
+Notes:	unlike "PGMINT" (AX=1021h), DISPATCHINT may be applied to the task
+	  making the DISPATCHINT call
+	multiple "DISPATCHINT" calls are processed in the order in which they
+	  were executed
+	the FAR routine is entered with the current ES, DS, SI, DI, and BP
+	  values, using the task's internal stack (see AX=101Ah); only SS:SP
+	  needs to be preserved
+	this API call may be made from within a hardware interrupt handler
+SeeAlso: AX=1021h,AX=DE2Ah
+--------Q-15DE21-----------------------------
+INT 15 - DESQview v2.26+ - "ASSERTVIR" - CONTROL 386 SCREEN VIRTUALIZATION
+	AX = DE21h
+	BX = new state
+	    0000h turn off
+	    nonzero turn on
+Return: BX = old state of virtualization
+Notes:	this API call may be made from within a hardware interrupt handler
+	under DV 2.40 and 2.42, this call appears to have no effect and always
+	  returns a nonzero value in BX which appears to be the offset within
+	  the DV common memory segment of the caller's task object; it may
+	  only have an effect within a hardware interrupt handler
+SeeAlso: AX=1117h,AX=DE17h
+--------Q-15DE22-----------------------------
+INT 15 - DESQview v2.26+ - "PROCESSMEM" - GET TASK MEMORY STATUS
+	AX = DE22h
+	DX = segment of task handle
+Return: DX = total amount of memory in paragraphs
+	BX = amount of system memory in paragraphs
+	CX = largest block of system memory available in paragraphs
+	AX = memory flags (see #00552)
+Notes:	if the task handle is a child task, the returned values will be for the
+	  process containing the task, rather than the task itself
+	if the process's system memory is swapped out, BX,CX,DX remain
+	  unchanged, because the memory usage cannot be determined
+SeeAlso: AX=DE04h,AX=DE05h,AX=DE06h
+
+Bitfields for DESQview process memory flags:
+Bit(s)	Description	(Table 00552)
+ 0	system memory resides in shared memory
+ 1	process's memory is swapped out
+ 2	process's system memory is swapped out
+--------Q-15DE23-----------------------------
+INT 15 U - DESQview v2.31+ - ???
+	AX = DE23h
+	BX = ??? IRQ number on first PIC?
+	CX = ??? IRQ number on second PIC?
+Return: ???
+Note:	called by QEMM 6.00+
+--------Q-15DE24-----------------------------
+INT 15 - DESQview v2.40+ - "XNEWPROC" - START NEW APPLICATION
+	AX = DE24h
+	BX = length of .DVP data
+	CX = length of ??? string
+	DS:SI -> ??? string
+	ES:DI -> .DVP data (see #00427 at AX=102Ch)
+Return: BX = segment of task handle??? or 0000h on error
+Note:	this call is similar to AX=102Ch except that it can interpret the
+	  extended DVP data
+SeeAlso: AX=102Ch
+--------Q-15DE25-----------------------------
+INT 15 - DESQview v2.40+ - "GETDVPATH" - GET DESQview DIRECTORY
+	AX = DE25h
+	ES:DI -> 67-byte buffer for ASCIZ directory name
+Return: ES:DI buffer filled with directory from which DESQview was started
+BUG:	DV 2.42 does not place a terminating NUL at the end of the directory
+	  name, so if the buffer is not cleared to zeros before the call,
+	  there is no way to tell where the directory name ends.  This bug
+	  has been fixed in DV 2.52 (DV/X 1.02)
+SeeAlso: AX=DE2Eh,INT 21/AH=47h
+--------Q-15DE26-----------------------------
+INT 15 - DESQview v2.40+ - "GETFOREGROUND" - GET KEYBOARD FOCUS
+	AX = DE26h
+Return: BX = segment of handle for task with keyboard focus
+Note:	under DESQview/X, the X server always has the keyboard focus unless a
+	  "direct" window is active
+SeeAlso: AX=DE2Fh,INT 2F/AX=DE0Ah
+--------Q-15DE27-----------------------------
+INT 15 - DESQview v2.50+ - "ADDINSTANCEDATA" - ADD PER-TASK SAVE/RESTORE AREA
+	AX = DE27h
+	BX = type
+	    0000h process
+	    0001h task
+	ES:DI -> list of Instance Item Structures (see #00553)
+Return: CF clear if successful
+	    AX = ???
+	    BX = ???
+	CF set on error
+	    AX = error code???
+		0004h invalid BX value
+Note:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
+SeeAlso: INT 2F/AX=DE08h,INT 2F/AX=DE09h
+
+Format of DESQview Instance Item Structure [one element of list]:
+Offset	Size	Description	(Table 00553)
+ 00h	WORD	length of data area DESQview should save and restore on context
+		  switches (0000h = end of list)
+ 02h	DWORD	pointer to area to be saved/restored
+--------Q-15DE28-----------------------------
+INT 15 U - DESQview v2.50+ - ???
+	AX = DE28h
+	BX = segment of ??? or 0000h for default
+	???
+Return: ???
+Note:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
+SeeAlso: AX=DE2Ah
+--------Q-15DE29BX0000-----------------------
+INT 15 U - DESQview/X - ???
+	AX = DE29h
+	BX = 0000h
+	???
+Return: CF clear if successful
+	    ???
+	CF set on error
+Notes:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
+	under DESQview 2.60, this function and all other subfunctions of
+	  AX=DE29h always return CF set, as they are unique to DESQview/X
+--------Q-15DE29BX0001-----------------------
+INT 15 U - DESQview/X - ???
+	AX = DE29h
+	BX = 0001h
+	DX = segment of window handle
+Return: CF clear if successful
+	    AX = ???
+	    DX = ???
+	CF set on error
+Note:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
+--------Q-15DE29BX0002-----------------------
+INT 15 U - DESQview/X - ???
+	AX = DE29h
+	BX = 0002h
+	DX = segment of window handle
+Return: CF clear if successful
+	    AX = ???
+	    DX = ???
+	CF set on error
+Note:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
+--------Q-15DE29BX0003-----------------------
+INT 15 U - DESQview/X - ???
+	AX = DE29h
+	BX = 0003h
+	DX = segment of window handle
+Return: CF clear if successful
+	    ???
+	CF set on error
+Note:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
+--------Q-15DE29BX0004-----------------------
+INT 15 U - DESQview/X - GET DISPLAY NAME
+	AX = DE29h
+	BX = 0004h
+	CX = size of buffer in bytes
+	DX = segment of window handle
+	ES:DI -> buffer for display name
+Return: CF clear if successful
+	    buffer filled with ASCIZ display name (truncated if necessary) or
+	      null string if no display
+	CF set on error
+Notes:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
+	the name ":0" refers to the local display
+--------Q-15DE29BX0005-----------------------
+INT 15 U - DESQview/X - ???
+	AX = DE29h
+	BX = 0005h
+	???
+Return: CF clear if successful
+	    ???
+	CF set on error
+Note:	under DESQview 2.60, this function and all other subfunctions of
+	  AX=DE29h always return CF set, as they are unique to DESQview/X
+--------Q-15DE2A-----------------------------
+INT 15 - DESQview v2.50+ - "DISPATCHINTAFTERDOS" - INTERRUPT ANOTHER TASK
+	AX = DE2Ah
+	BX = segment of handle for task to interrupt or 0000h for caller
+	DX:CX -> interrupt routine
+	BP,SI,DI,DS,ES as required by interrupt routine
+Return: nothing
+Notes:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
+	this call is the same as AX=DE20h except that it will delay
+	  interrupting the specified task until after it has exited DOS
+SeeAlso: AX=1021h,AX=DE20h
+--------Q-15DE2B-----------------------------
+INT 15 - DESQview v2.50+ - "OBJNEXT" - TRAVERSE OBJECT LIST
+	AX = DE2Bh
+	ES:DI -> starting object
+		0000h:0000h for first object in list???
+Return: AX = status
+	    0000h successful
+		ES:DI -> next object of same type (window/non-window)
+	    0001h failed (ES:DI was not a valid handle)
+Notes:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
+	there are two separate lists, one for window/task objects and one
+	  for all other objects
+SeeAlso: AX=1016h,AX=DE2Ah,AX=DE2Ch
+--------Q-15DE2C-----------------------------
+INT 15 - DESQview v2.50+ - "WININFO" - GET WINDOW INFORMATION
+	AX = DE2Ch
+	DX = window information format version (0100h for DESQview 2.5x)
+	BX = segment of window handle or 0000h for default
+	ES:DI -> buffer for window information (see #00554)
+Return: AX = status
+	    0000h successful
+Note:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
+SeeAlso: AX=1000h,AX=1016h,AX=DE01h,AX=DE2Bh
+
+Format of DESQview window information:
+Offset	Size	Description	(Table 00554)
+ 00h	BYTE	task flag: 00h window, 01h task
+ 01h	BYTE	process number if owner task
+		00h if non-owner task
+ 02h	WORD	segment of owner's handle, 0000h if orphaned
+ 04h	WORD	mapping context (see #00416 at AX=1016h)
+ 06h	BYTE	task status (see #00555)
+ 07h	BYTE	unused
+ 08h	WORD	status bits (see #00556)
+ 0Ah	BYTE	01h if foreground-only window
+
+(Table 00555)
+Values for DESQview task status:
+ 00h	"Waiting" waiting for input
+ 01h	"Idle" keyboard poll limit reached
+ 03h	same as 01h
+ 04h	"Pausing" INT 15/AX=1000h pause called
+ 04h	DV/X direct: user did something to allow task switch
+ 05h	"ModeChg" video mode about to be changed
+ 06h	"ModeNtf" notify that video mode changed
+ 07h	"MoniCh" requested change to other monitor
+ 08h	"StartPgm" control relinquished to start new process
+ 09h	"MgrCan" made window manager CANCEL command
+ 0Ah	"Slicing" time slice expired
+ 0Bh	"Exit DOS" notify on DOS calls
+ 0Ch	"Enter DOS" process is re-entering DOS
+ 0Dh	"Terminate" INT 21/AH=4Ch or task freed
+ 0Eh	"BrkNxt" Control-Break pressed
+ 0Fh	"MgrCol" keyboard focus taken away
+ 10h	"PgmInt" interrupted by API call from another task
+ 11h	"BldOpen" call to INT 15/AX=DE01h
+
+Bitfields for DESQview task status bits:
+Bit(s)	Description	(Table 00556)
+ 6	task is freeing another task
+ 5	process is being created
+ 4	user suspended process
+ 3	process suspended itself
+ 2	process is resized direct window (suspended)
+ 1	process swapped out
+ 0	DESQview process
+--------Q-15DE2D-----------------------------
+INT 15 U - DESQview v2.50+ - GET/SET SOCKET HANDLER
+	AX = DE2Dh
+	CX = direction
+	    FFFFh set socket handler
+		DX:BX -> FAR function for socket interface
+			must be of the format described under INT 63"DESQview"
+			  at #03515
+	    other get socket handler
+		Return: DX:BX -> socket handler (see #03515)
+Notes:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
+	the "set" subfunction is normally called only by SOCKET.DVR
+SeeAlso: AX=DE2Eh,INT 63"DESQview",#03515
+--------Q-15DE2E-----------------------------
+INT 15 U - DESQview v2.50+ - SOCKET API
+	AX = DE2Eh
+	DX:BX -> socket record (see #00558)
+		0000h:0000h to create a new socket record
+Return: CX = size of socket record in bytes
+	DX:BX -> socket record which was used
+Notes:	DESQview 2.50-2.52 are distributed as part of DESQview/X v1.0x.
+	socket records are allocated from common memory
+	for Unix compatibility, each socket and connection on a socket is
+	  allocated a DOS file handle (referencing an SFT for NUL) which is
+	  used on various calls to specify which of possibly multiple
+	  connections is to be operated upon
+SeeAlso: AX=DE2Dh,INT 61/AX=0001h/SF=0001h"VINES",INT 63"DESQview"
+
+(Table 00557)
+Values for DESQview/X socket API function number:
+ 0000h	initialize socket???
+ 0001h	"gethostname"
+ 0002h	"ioctl" check for input
+ 0003h	"sleep" delay for specified period
+ 0004h	"htons" convert word to network (big-endian) byte order
+ 0005h	"select"
+ 0006h	"bsd_close"/"so_close" close socket
+ 0007h	NOP
+ 0008h	"connect" initiate connection on socket
+ 0009h	"recv"/"recvfrom" read from socket
+ 000Ah	"socket"
+ 000Bh	???
+ 000Ch	"gethostbyname"
+ 000Dh	"send"/"sendto" write to socket
+ 000Eh	??? (does something to all connections for process)
+ 000Fh	"getpid" get process identifier
+ 0010h	"gettimeofday"
+ 0011h	"bind" assign name to socket
+ 0012h	"listen" listen for connections on socket
+ 0013h	"accept" accept connection on socket
+ 0014h	connect to X server
+ 0015h	"gethostbyaddr" get host information for an address
+ 0016h	"getprotobyname"
+ 0017h	"getprotobynumber"
+ 0018h	"getservbyname"
+ 0019h	"getservbyport"
+ 001Ah	"getsockname" determine name bound to socket
+ 001Bh	"getpeername" get name of connected peer
+ 001Ch	"getsockopt"/"setsockopt"
+ 001Dh	"so_exit"	 close all sockets for calling process
+ 001Eh	"issock" determine whether file handle references socket
+ 001Fh	"so_attach" reattach previously detached socket
+ 0020h	"so_detach" temporarily detach socket
+ 0021h	"dvpath" get DESQview directory (see also AX=DE24h)
+ 0022h	"NewProc" start new application (see also AX=102Ch)
+ 0023h	"so_linkup"
+ 0024h	"CanonicalPath" canonicalize filename (see also INT 21/AH=60h)
+ 0025h	indirect INT 15h call
+ 0026h	Network Manager interface
+ 0027h	"so_unlink"    close connection from "so_linkup"
+ 0028h	"raisepriority"
+ 0029h	"lowerpriority"
+ 002Ah	"so_private" ???
+ FFFFh	"NetExit" (appears to be a NOP)
+
+Format of DESQview/X socket record:
+Offset	Size	Description	(Table 00558)
+ 00h	WORD	signature F0ADh
+ 02h	WORD	function number (see #00557)
+ 04h	WORD	returned error code (see #00578)
+ 06h	WORD	maximum message size??? (usually 0400h)
+ 08h	WORD	PSP segment to use or 0000h if socket not valid
+ 0Ah	WORD	scratch space (JFT size)
+ 0Ch	DWORD	scratch space (JFT address)
+ 10h	DWORD	mailbox handle (initialized by function 0000h)
+ 14h	DWORD	timer object handle (initialized by function 0000h)
+---function 0000h---
+ 18h	WORD	(ret) ???
+---function 0001h---
+ 18h	WORD	(ret) status???
+ 1Ah 128 BYTEs	(ret) ASCIZ hostname (empty string if not on network)
+ 9Ah	WORD	maximum length of hostname to return
+---function 0002h---
+ 18h	WORD	(ret) status
+ 1Ah	WORD	socket's file handle
+ 1Ch	WORD	IOCTL function
+		05h "FIONREAD" determine available input
+		06h "FIONBIO" set blocking state of socket
+ 1Eh	WORD	(return, subfn 05h) number of bytes available for reading
+		(call, subfn 06h) 0000h blocking, nonzero nonblocking
+---function 0003h---
+ 18h  2 BYTEs	unused
+ 1Ah	WORD	delay time in seconds
+---function 0004h---
+ 18h	WORD	(ret) result in network (big-endian) byte order
+ 1Ah	WORD	value to convert to network byte order
+---function 0005h---
+ 18h	WORD	(ret) number of handles meeting the specified conditions???
+ 1Ah	WORD	number of file handles in each bitset
+ 1Ch	DWORD	bitset of socket handles to check for readability
+ 20h	DWORD	bitset of socket handles to check for writability
+ 24h	DWORD	bitset of socket handles to check for errors
+ 28h	WORD	timeout in ??? or 0000h to block until some socket ready
+ 2Ah	DWORD	???
+ 2Eh	DWORD	???
+---function 0006h---
+ 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
+ 1Ah	WORD	socket's file handle
+---function 0008h---
+ 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
+ 1Ah	WORD	socket's file handle
+ 1Ch	WORD	0001h if socket name specified, 0000h if not
+ 1Eh	WORD	length of socket name
+ 20h  N BYTEs	name of socket to which to connect
+---function 0009h---
+ 18h	WORD	(ret) number of bytes actually read, 0000h if connection
+			closed, or FFFFh on error
+ 1Ah	WORD	socket's file handle
+ 1Ch	WORD	number of bytes to read
+ 1Eh	WORD	flags
+ 20h	WORD	0000h if no source address desired
+		0001h if source address is to be stored (datagram sockets)
+ 22h	WORD	length of source address
+ 24h 110 BYTEs	source address
+ 92h 1K BYTEs	buffer for data to be read
+---function 000Ah---
+ 18h	WORD	(ret) socket's file handle or FFFFh on error
+ 1Ah	WORD	address family (0001h,0002h)
+ 1Ch	WORD	socket type
+ 1Eh	WORD	protocol
+---function 000Bh---
+ 18h	WORD	(ret) 0001h if ??? or FFFFh on error
+ 1Ah	WORD	socket's file handle
+ 1Eh	WORD	(call) ???
+---function 000Ch---
+ 18h 128 BYTEs	ASCIZ hostname (special case if empty string or "unix")
+ 98h	???	(ret) packed 'hostent' structure
+ A2h	???	(ret) ???
+---function 000Dh---
+ 18h	WORD	(ret) number of bytes actually written or FFFFh on error
+ 1Ah	WORD	socket's file handle
+ 1Ch	WORD	number of bytes to write
+ 1Eh	WORD	number of bytes to follow in subsequent writes???
+ 20h	WORD	flags
+ 22h	WORD	0000h if no destination specified, 0001h if destination present
+ 24h	WORD	0001h if broadcast message???, 0000h if not
+		(ignored if no destination specified)
+ 26h	WORD	length of destination address
+ 28h 110 BYTEs	destination address
+ 96h 1K BYTEs	buffer containing data to be written
+---function 000Eh---
+ no additional fields
+---function 000Fh---
+ 18h	DWORD	(ret) DESQview task handle of calling process
+---function 0010h---
+ 18h	DWORD	(ret) current time
+ 1Ch	DWORD	(ret) ???
+---function 0011h---
+ 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
+ 1Ah	WORD	socket's file handle
+ 1Ch	WORD	length of name
+ 1Eh  N BYTEs	buffer for socket name
+---function 0012h---
+ 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
+ 1Ah	WORD	socket's file handle
+ 1Ch	WORD	maximum backlog of pending connections allowed on socket
+---function 0013h---
+ 18h	WORD	(ret) file handle for new connection or FFFFh on error
+ 1Ah	WORD	listen()ing socket's file handle
+ 1Ch	WORD	(call) length of buffer for connecting entity's address
+		(ret) actual length of address
+ 1Eh  N BYTEs	buffer for connecting entity's address (110 bytes???)
+---function 0014h---
+ 18h	WORD	(ret) socket's file handle or FFFFh on error
+ 1Ah  4 BYTEs	(ret) ???
+ 1Eh	WORD	(ret) ???
+ 20h	WORD	(ret) ???
+ 22h 256 BYTEs	ASCIZ X display name
+122h	???
+---function 0015h---
+ 18h	WORD	(call) type of address??? (test for 0001h seen)
+ 1Ah	WORD	(call) length of buffer for host address
+ 1Ch 110 BYTEs	buffer containing ASCIZ host address
+ 8Ah	WORD	(ret) offset of official host name
+ 8Ch	WORD	(ret) offset of alias list???
+ 8Eh	WORD	(ret) address type???
+ 90h	WORD	(ret) length of an address in bytes???
+ 92h	WORD	(ret) offset of address???
+ 9Ah  N BYTEs	(ret) buffer for hostname, alias list, and host address
+---function 0016h---
+ 18h	???	buffer for ASCIZ protocol name
+ 98h	???
+---function 0017h---
+ 18h	WORD	(call) protocol number
+ 1Ah	WORD	(ret) ??? or 0001h
+---function 0018h---
+ 18h 128 BYTEs	buffer containing ASCIZ ???
+ 98h 128 BYTEs	buffer containing ASCIZ ???
+118h	WORD	(ret) ???
+---function 0019h---
+ 18h	WORD	port number
+ 1Ah 128 BYTEs	(call) ASCIZ host name
+		(ret) packed servent strctures???
+ 9Ah	WORD	(ret) ???
+---function 001Ah---
+ 18h	WORD	(ret) 0000h if successful, FFFFh on error
+ 1Ah	WORD	socket's file handle
+ 1Ch	WORD	(call) length of buffer for socket name
+		(ret) actual length of socket name
+ 1Eh  N BYTEs	buffer for socket name
+---function 001Bh---
+ 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
+ 1Ah	WORD	socket's file handle
+ 1Ch	WORD	(call) size of buffer for name
+		(ret) actual size of name
+ 1Eh  N BYTEs	buffer for peer's name
+---function 001Ch---
+ 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
+ 1Ah	WORD	direction: 0000h to get, 0001h to set
+ 1Ch	WORD	socket's file handle
+ 1Eh	WORD	option level
+ 20h	WORD	option name
+ 22h	WORD	(call) length of buffer for option value
+		(ret) actual length of option value
+ 24h  N BYTEs	buffer for option value
+---function 001Dh---
+ no additional fields
+---function 001Eh---
+ 18h	WORD	(ret) status: 0000h ??? or 0001h ???
+ 1Ah	WORD	file handle which may or may not be a socket
+---function 001Fh---
+ 18h	WORD	(ret) file handle or FFFFh on error
+ 1Ah	DWORD	(call) pointer to Socket Context Record (see #00579) of a
+			previously detached socket
+---function 0020h---
+ 18h	WORD	(ret) status: 0000h if successful or FFFFh on error
+ 1Ah	WORD	socket's file handle
+ 1Ch	DWORD	(ret) pointer to Socket Context Record (see #00579) for
+			the file handle
+---function 0021h---
+ 18h 64 BYTEs	buffer for DESQview startup directory (see AX=DE25h)
+---function 0022h---
+ 18h	DWORD	(ret) task handle of new application
+ 1Ch	WORD	size of .DVP data
+ 1Eh 129 BYTEs	ASCIZ ???
+ 9Fh  N BYTEs	.DVP data (see #00427 at AX=102Ch)
+---function 0023h---
+ 18h	WORD	(ret) ??? or FFFFh on error
+ 1Ah	WORD	socket's file handle???
+---function 0024h---
+ 18h	WORD	(ret) DOS error code (see #01680 at INT 21/AH=59h/BX=0000h)
+			0000h if successful
+ 1Ah 129 BYTEs	ASCIZ filename/pathname
+11Bh 129 BYTEs	ASCIZ canonicalized filename/pathname (see INT 21/AH=60h)
+---function 0025h---
+ 18h	WORD	value of AX
+ 1Ah	WORD	value of BX
+ 1Ch	WORD	(call) value of CX for call if AH value other than 12h
+		(call) number of stack parameters if AH value is 12h
+		(ret) returned CX for calls other than INT 15/AH=12h
+ 1Eh	WORD	value of DX
+ 20h	WORD	value of DI
+ 22h	WORD	value of SI
+ 24h	WORD	value of DS
+ 26h	WORD	value of ES
+ 28h	WORD	(ret) value of FLAGS after call
+ 2Ah  N DWORDs	(call) stack parameters for INT 15/AH=12h call
+		(ret) stack results from INT 15/AH=12h call
+---function 0026h---
+ 18h	WORD	(call) Network Manager subfunction (see #00559)
+		(ret) status??? (0000h on error)
+ 1Ah	WORD	(call) size of parameter data
+		(ret) size of returned data
+ 1Ch  N BYTEs	(call) parameter data required by call (see #00560,#00561,#00577)
+		(ret) result data (see #00570,#00571,#00576)
+---function 0027h---
+ 18h	WORD	(ret) status: 0000h if successful, FFFFh on error
+ 1Ah	WORD	socket's file handle
+---functions 0028h,0029h---
+ 18h	WORD	(call) file handle for which to set priority low/high
+			FFFFh to change calling task's priority
+---function 002Ah---
+ no additional fields
+
+(Table 00559)
+Values for DESQview/X Network Manager subfunction:
+ 0004h	"so_exit"???
+ 0005h	"gethostbyname"
+ 0006h	"gethostname"
+ 0009h	"socket"
+ 000Dh	"gethostbyaddr"
+ 000Fh	"getprotobyname"
+ 0010h	get protocol name for protocol number
+ 0011h	"getservbyname"
+ 0012h	"getservbyport" (see #00563)
+ 0013h	"getsockname"??? (see #00564)
+ 0016h	"shutdown" (see #00565)
+ 0017h	kill Network Manager
+ 0018h	"getpeername"??? (see #00566)
+ 0019h	??? (called by socket function 0000h) (see #00567)
+ 001Ah	??? (see #00568)
+ 001Bh	"so_linkup" (see #00569)
+ 001Dh	"getnetstatus" get network services (see #00570)
+ 001Fh	"getpwuid"
+ 0020h	"getpwnam"
+ 0021h	"getpwvar"
+ 0022h	"crypt"
+ 0023h	"so_unlink"
+ 0024h	"getlogin" (see #00571)
+ 0028h	"sethostent"
+ 0029h	"gethostent"
+ 002Ah	"soaddhost"
+ 002Bh	"soupdatehost"
+ 002Ch	"sodeletehost"
+ 002Dh	"setservent"
+ 002Eh	"getservent"
+ 002Fh	"setpwent"
+ 0030h	"getpwent" (see #00572)
+ 0031h	"sethostpath" (see #00573)
+ 0032h	"endservent"
+ 0033h	"endhostent"
+ 0034h	"getnettype" get IP network number (see #00574)
+ 0035h	??? (pops up Network Manager window)
+ 0037h	"getnettimeout" (see #00575)
+ 0038h	get machine name and IP address (see #00576)
+ 0039h	"getuid" (see #00577)
+---DV/X v2.0+ ---
+ 0041h	"deletepwnam"
+ 0045h	"renamepw"
+
+Format of Function 0026h/Subfunction 000Fh data:
+Offset	Size	Description	(Table 00560)
+ 00h  8 BYTEs	(ret) ???
+
+Format of Function 0026h/Subfunction 0010h data:
+Offset	Size	Description	(Table 00561)
+ 00h  2 BYTEs	(ret) ???
+ 02h	WORD	(ret) protocol number
+ 04h	WORD	(call) protocol number for which to get name
+ 06h	WORD	(ret) ???
+ 08h	var	(ret) ASCIZ protocol name
+ N	var	(ret) ASCIZ protocol name
+
+Format of Function 0026h/Subfunction 0011h data:
+Offset	Size	Description	(Table 00562)
+ 00h  8 BYTEs	???
+ 08h	var	(ret) ASCIZ protocol name
+	var	(ret) ASCIZ ??? name
+	var	(ret) ASCIZ ??? name
+
+Format of Function 0026h/Subfunction 0012h data:
+Offset	Size	Description	(Table 00563)
+ 00h  8 BYTEs	(ret) ???
+
+Format of Function 0026h/Subfunction 0013h data:
+Offset	Size	Description	(Table 00564)
+ 00h 116 BYTEs	(ret) ???
+
+Format of Function 0026h/Subfunction 0016h ("shutdown") data:
+Offset	Size	Description	(Table 00565)
+ 00h	WORD	(ret) shutdown status (0000h successful, FFFFh error)
+ 02h  4 BYTEs	(ret) ???
+ 04h	WORD	(call) socket handle
+ 06*h	WORD	(call) what (0 = receives, 1 = sends, 2 = both)
+
+Format of Function 0026h/Subfunction 0018h data:
+Offset	Size	Description	(Table 00566)
+ 00h 116 BYTEs	(ret) ???
+
+Format of Function 0026h/Subfunction 0019h data:
+Offset	Size	Description	(Table 00567)
+ 00h  4 BYTEs	(ret) ???
+ 04h	DWORD	(ret) task handle of ???
+
+Format of Function 0026h/Subfunction 001Ah data:
+Offset	Size	Description	(Table 00568)
+ 00h 38 BYTEs	(ret) ???
+
+Format of Function 0026h/Subfunction 001Bh data:
+Offset	Size	Description	(Table 00569)
+ 00h 10 BYTEs	(ret) ???
+
+Format of Function 0026h/Subfunction 001Dh return data [array]:
+Offset	Size	Description	(Table 00570)
+ 00h	WORD	??? or FFFFh if end of array
+ 02h  7 BYTEs	???
+ 09h 27 BYTEs	ASCIZ name of service
+
+Format of Function 0026h/Subfunction 0024h return data:
+Offset	Size	Description	(Table 00571)
+ 00h	var	ASCIZ username
+
+Format of Function 0026h/Subfunction 0030h data:
+Offset	Size	Description	(Table 00572)
+ 00h	WORD	(call) UID or 0000h for current user
+		(ret) ???
+ 02h	WORD	(ret) UID
+ 04h  6 BYTEs	(ret) ???
+ 0Ah	var	(ret) ASCIZ username
+	var	(ret) ASCIZ encrypted password
+	var	(ret) ASCIZ initial ("home") directory
+
+Format of Function 0026h/Subfunction 0031h ("sethostpath") data:
+Offset	Size	Description	(Table 00573)
+ 00h   4 BYTEs	???
+ 04h 144 BYTEs	ASCIZ ???
+
+Format of Function 0026h/Subfunction 0034h data:
+Offset	Size	Description	(Table 00574)
+ 00h  1-3 BYTEs IP network number of caller's machine (low byte first)
+
+Format of Function 0026h/Subfunction 0037h ("getnettimeout") return data:
+Offset	Size	Description	(Table 00575)
+ 00h	WORD	(ret) timeout
+ 02h  2 BYTEs	(ret) ???
+
+Format of Function 0026h/Subfunction 0038h return data:
+Offset	Size	Description	(Table 00576)
+ 00h	BYTE	???
+ 01h  4 BYTEs	IP address
+ 05h	var	ASCIZ machine name
+	???
+
+Format of Function 0026h/Subfunction 0039h ("getuid") return data:
+Offset	Size	Description	(Table 00577)
+ 00h	WORD	user ID
+ 02h  2 BYTEs	???
+SeeAlso: #00573,#00576
+
+(Table 00578)
+Values for DESQview/X socket error code:
+ 0000h	successful
+ 0009h	"BADF" bad file handle
+ 000Ch	"ENOMEM" out of memory
+ 000Eh	"EFAULT" bad address
+ 0016h	"EINVAL" invalid argument
+ 0018h	"EMFILE" too many open files
+ 0020h	"EPIPE" ??? broken pipe
+ 0023h	"EWOULDBLOCK" operation cannot be completed at this time
+ 0024h	"EINPROGRESS" operation now in progress
+ 0026h	"ENOTSOCK" socket invalid
+ 0028h	"EMSGSIZE" message too long to send atomically
+ 002Ch	"ESOCKTNOSUPPORT" socket type not supported
+ 002Fh	"EAFNOSUPPORT" address family not supp. by protocol fam.
+ 0031h	"EDOM" argument too large
+ 0038h	"EISCONN" socket is already connected
+ 0039h	"ENOTCONN" socket is not connected
+
+Format of DESQview/X Socket Context Record:
+Offset	Size	Description	(Table 00579)
+ 00h	DWORD	pointer to next Socket Context Record, 0000h:0000h if last
+ 04h	WORD	SFT index for socket, 00FFh if not connected, FFFFh if detached
+ 06h	WORD	PSP segment of owner or 0000h
+ 08h	WORD	mapping context of owning window (see #00416 at AX=1016h)
+ 0Ah  2 BYTEs	???
+ 0Ch	WORD	address family
+ 0Eh	WORD	socket type
+ 10h	WORD	protocol
+ 12h	WORD	socket state
+		0001h created
+		0002h bound
+		0003h listening???
+		0005h connected
+ 14h	DWORD	timer object handle
+ 18h	DWORD	object handle (mailbox???)
+ 1Ch	DWORD	object handle of parent of above object or 0000h:0000h
+ 20h	DWORD	pointer to ??? or 0000h
+ 24h  6 BYTEs	???
+ 2Ah	WORD	file handle for socket or FFFFh
+ 2Ch  2 BYTEs	???
+ 2Eh	WORD	nonzero if socket nonblocking
+---network connections only---
+ 30h  2 BYTEs	???
+ 32h	WORD	???
+ 34h  4 BYTEs	(big-endian) IP address of remote
+ 38h  6 BYTEs	???
+--------Q-15DE2F-----------------------------
+INT 15 - DESQview v2.50+ - "VIDEONOTIFY" - HAS DIRECT WINDOW BEEN ACTIVE?
+	AX = DE2Fh
+Return: BX = status
+	    0001h keyboard focus has been given to a direct window since the
+		last call
+	    0000h if not
+Notes:	DESQview 2.50-2.53 are distributed as part of DESQview/X v1.00-1.10.
+	Quarterdeck stated that this call would not be available under future
+	  versions of DESQview Classic, but it is still present in v2.60
+--------Q-15DE30-----------------------------
+INT 15 - DESQview v2.50+ - "GETDVXVERSION" - GET DESQview/X VERSION
+	AX = DE30h
+Return: BX = version (BH=major, BL=minor) or 0000h if not DESQview/X
+Notes:	DESQview 2.50-2.53 are distributed as part of DESQview/X v1.00-1.10.
+	you must first check the DESQview version to verify that it is 2.50 or
+	  greater
+SeeAlso: INT 21/AH=2Bh/CX=4445h
+--------Q-15DE31-----------------------------
+INT 15 - DESQview/X v1.10 - ???
+	AX = DE31h
+	CX = ???
+	    0000h ???
+	    nonzero ???
+	???
+Return: ???
+--------b-15DF-------------------------------
+INT 15 - Juko UNIQUE UX BIOS - TURBO MODE CONTROL
+	AH = DFh
+	AL = function
+	    00h turn on Turbo mode
+	    01h turn off Turbo mode
+	    02h set Turbo mode according to hardware switch
+SeeAlso: INT 13/AX=FFFFh
+--------b-15E00F-----------------------------
+INT 15 - Compaq Systempro - MULTIPROCESSOR DISPATCH
+	AX = E00Fh
+	ES:BX -> start of 2nd processor's execution
+Return: AL = status
+	    0Fh successful
+	    00h failure
+SeeAlso: AX=E10Eh,AX=E200h
+--------b-15E10E-----------------------------
+INT 15 - Compaq Systempro - MULTIPROCESSOR END-OF-DISPATCH
+	AX = E10Eh
+	ES:BX -> start of 2nd processor's execution
+Return: AL = status
+	    0Fh successful (halted)
+	    00h failure (not halted)
+SeeAlso: AX=E00Fh,AX=E200h
+--------b-15E200-----------------------------
+INT 15 - Compaq Systempro - MULTIPROCESSOR AVAILABLE
+	AX = E200h
+Return: AX bit 15 set if 2nd processor available
+SeeAlso: AX=E00Fh,AX=E10Eh
+--------b-15E4-------------------------------
+INT 15 - Tandy??? - ???
+	AH = E4h
+	AL = subfunction
+	    21h, 89h, 8Ah, 8Bh called by 386MAX v6.01
+	DL = ???
+Return: DL = 00h if successful???
+Note:	the section of code in 386MAX which calls these functions also checks
+	  whether the ROM BIOS has both Tandy and Phoenix Technologies
+	  signatures if these calls fail; the Tandy 1000SL/TL BIOS does not
+	  support this function, however, returning the usual CF set/AH=86h for
+	  "unsupported function".
+--------b-15E4-------------------------------
+INT 15 - Compaq ROM BIOS 1993/08/03 and newer - ???
+	AH = E4h
+	AL = subfunction
+	    00h get advanced system info
+		Return: CF clear
+			AH = 00h
+			CX = 0000h
+			BX = advanced system info flags (read from [XBDA:0094h])
+			     bit 4: "mode 2" (dual harddisk controller) enabled
+	    01h,02h unsupported by this ROM version
+		Return: CF set, AH = 86h
+	    80h set advanced system info
+		BX = advanced system info flags
+		     bit 4: enable "mode 2" (dual harddisk controller)
+		???
+		Return: ???
+		Note:	On Compaq machines with "COMPAQ" signature at
+			  F000h:FFEAh (see also MEM F000h:FFE0h), MS-DOS/PC DOS
+			  IO.SYS/IBMBIO.COM use	this function to set bit 4
+			  before calling INT 13h/AH=08h to retrieve the number
+			  of hard disks installed (DL).
+	    90h,A0h,B0h,C0h,D0h,E0h,F0h set ???
+		Return: CF clear
+			AH = 00h
+			CX = 0000h
+			BX = ???
+	    81h,91h,A1h,B1h,C1h,D1h,E1h,F1h unsupported by 3/8/93&4/8/93 ROMs
+		Return: CF set, AH = 86h
+Notes:	functions 80h/90h/etc. are not supported by the 4/8/93 EISA System ROM
+	these functions are not supported by the 7/26/93 LTE Lite 386 ROM
+--------!---Section--------------------------
author	Andreas Baumann <mail@andreasbaumann.cc>	2022-09-02 09:18:52 +0200
committer	Andreas Baumann <mail@andreasbaumann.cc>	2022-09-02 09:18:52 +0200
commit	52be99d8c0862ff87db9a4f9ccec1ac4b5f7caed (patch)
tree	1a1a1c98090afd8459cc8f045f9de2d4a7cba5ab /floppy/doc/INTERRUP.C
parent	15adaba9eaa6a98c8b55bc5c5f73c3a9e0e55e7a (diff)