interrupb.txt

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	AL = 01h
Return: ???
Note:	called by AH=D0h
SeeAlso: AH=D0h,AH=D4h
--------V-10D4-------------------------------
INT 10 U - VIDEO - HP 100LX/200LX - INTERNAL - ???
	AH = D4h
	AL = 29h
Return: ???
Note:	called by AH=D0h
SeeAlso: AH=D0h,AH=D1h
--------V-10D5-------------------------------
INT 10 - Netroom SCRNCLK - ???
	AH = D5h
	???
Return: ???
Program: SCRNCLK is a "cloaked" screen accelerator included with Netroom
--------t-10DAAD-----------------------------
INT 10 - TSRUNIT v1.10 - INSTALLATION CHECK
	AX = DAADh
	BX = check signature (different for each TSR)
	CX = 0000h
Return: CX = return signature (nonzero) if installed
	    ES = program segment prefix
Program: TSRUNIT is a Turbo Pascal unit for creating TSRs by Nir Sofer
--------V-10DFA5-----------------------------
INT 10 U - VIDEO - Compaq ADAPT.COM - GET ??? DATA AREA
	AX = DFA5h
Return: AX = BDBFh if supported
	    ES:DI -> ??? data area
	    BX = ES
SeeAlso: AX=BFA0h
--------V-10EE-------------------------------
INT 10 - VIDEO - IBM "Private" Function
	AH = EEh
SeeAlso: INT 13/AH=FFh"IBM"
--------V-10EF-------------------------------
INT 10 - VIDEO - MSHERC.COM - GET VIDEO ADAPTER TYPE AND MODE
	AH = EFh
Return: DL = video adapter type
	    00h original Hercules
	    01h Hercules Plus	 (port 03BAh reads x001xxxxx)
	    02h Hercules InColor (port 03BAh reads x101xxxxx)
	    FFh not a Hercules-compatible card (port 03BAh bit 7 not pulsing)
	DH = memory mode byte
	    00h "half" mode
	    01h "full" mode
	    FFh not a Hercules-compatible card
Program: MSHERC.COM/QBHERC.COM is a support program for the Microsoft Quick
	  languages which makes their graphics libraries compatible with a
	  Hercules card by adding video modes 08h and 88h, and supporting
	  text in the new graphics modes.
Notes:	while in mode 08h or 88h, INT 10 supports the Hercules card much like
	  a CGA.
	MSHERC performs an installation check by setting DL=FFh and testing
	  whether it has been changed on return, which causes it to reinstall
	  itself when no HGC is present (or HGC emulation has temporarily been
	  disabled); a better installation check would be to use DX=80FFh and
	  check whether DX has been changed
	reportedly returns DH=00h on some not-entirely-Hercules-compatible
	  cards
Index:	installation check;MSHERC
--------V-10F0-------------------------------
INT 10 - EGA Register Interface Library - READ ONE REGISTER
	AH = F0h
	BL = register number
	BH = 00h
	DX = group index (see #00223)
Return: BL = data
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others; it is used for software virtualization
	  of write-only registers on an EGA video adapter, so that multiple
	  programs may peacefully coexist without clobbering each other's
	  display settings
SeeAlso: AH=F1h"EGA",AH=F2h"EGA",AH=FAh"EGA",INT 2F/AX=BC00h

(Table 00223)
Values for group index:
 Pointer/data chips
 00h	CRT Controller (25 reg) 3B4h mono modes, 3D4h color modes
 08h	Sequencer (5 registers) 3C4h
 10h	Graphics Controller (9 registers) 3CEh
 18h	Attribute Controller (20 registers) 3C0h
 Single registers
 20h	Miscellaneous Output register 3C2h
 28h	Feature Control register (3BAh mono modes, 3DAh color modes)
 30h	Graphics 1 Position register 3CCh
 38h	Graphics 2 Position register 3CAh
--------V-10F0-------------------------------
INT 10 - VHRBIOS.SYS - INSTALLATION CHECK
	AH = F0h
Return: BX = 4F4Bh ('OK')
Program: VHRBIOS.SYS is a driver for the Micro Display Systems "TheGenius"
	  black&white A4/portrait monitor
SeeAlso: AH=F1h"VHRBIOS.SYS",AH=F2h"VHRBIOS.SYS",AH=F4h"VHRBIOS.SYS"
SeeAlso: AH=96h"VHRBIOS.SYS"
--------V-10F1-------------------------------
INT 10 - EGA Register Interface Library - WRITE ONE REGISTER
	AH = F1h
	DX = group index (see #00223)
	    if single register:
		BL = value to write
	    otherwise
		BL = register number
		BH = value to write
Return: BL = data
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AX=7F05h,AH=F0h"EGA",AH=F3h"EGA",AH=FAh"EGA"
--------V-10F1-------------------------------
INT 10 - VHRBIOS.SYS - SET REVERSE VIDEO
	AH = F1h
	AL = new video state 
	    (bit 5 set for black text on white, clear for white on black)
Return: ???
Program: VHRBIOS.SYS is a driver for the Micro Display Systems "TheGenius"
	  black&white A4/portrait monitor
SeeAlso: AH=F0h"VHRBIOS.SYS",AH=F3h"VHRBIOS.SYS"
--------V-10F2-------------------------------
INT 10 - EGA Register Interface Library - READ REGISTER RANGE
	AH = F2h
	CH = starting register number
	CL = number of registers (>1)
	DX = group index (00h,08h,10h,18h) (see #00223)
	ES:BX -> buffer, CL bytes
Return: nothing
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AH=F0h"EGA",AH=F3h"EGA",AH=FAh"EGA"
--------V-10F2-------------------------------
INT 10 - VHRBIOS.SYS - ???
	AH = F2h
Return: ???
Program: VHRBIOS.SYS is a driver for the Micro Display Systems "TheGenius"
	  black&white A4/portrait monitor
SeeAlso: AH=F0h"VHRBIOS.SYS",AH=F4h"VHRBIOS.SYS"
--------V-10F3-------------------------------
INT 10 - EGA Register Interface Library - WRITE REGISTER RANGE
	AH = F3h
	CH = starting register
	CL = number of registers (>1)
	DX = group index (00h,08h,10h,18h) (see #00223)
	ES:BX -> buffer, CL bytes
Return: nothing
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AX=7F05h,AH=F1h"EGA",AH=F2h"EGA",AH=F4h"EGA"
--------V-10F3-------------------------------
INT 10 - VHRBIOS.SYS - SWITCH BETWEEN DUAL MONITORS???
	AH = F3h
Return: ???
Program: VHRBIOS.SYS is a driver for the Micro Display Systems "TheGenius"
	  black&white A4/portrait monitor
SeeAlso: AH=F0h"VHRBIOS.SYS",AH=F4h"VHRBIOS.SYS",AH=F6h"VHRBIOS.SYS"
--------V-10F4-------------------------------
INT 10 - EGA Register Interface Library - READ REGISTER SET
	AH = F4h
	CX = number of registers to read (>1)
	ES:BX -> table of register records (see #00224)
Return: register values in table filled in
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AH=F0h"EGA",AH=F2h"EGA",AH=F5h"EGA"

Format of EGA RIL entries in table of register records:
Offset	Size	Description	(Table 00224)
 00h	WORD	group index
		Pointer/data chips
		   00h CRTC (3B4h mono modes, 3D4h color modes)
		   08h Sequencer 3C4h
		   10h Graphics Controller 3CEh
		   18h Attribute Controller 3C0h
		Single registers
		   20h Miscellaneous Output register 3C2h
		   28h Feature Control register (3BAh mono modes, 3DAh color)
		   30h Graphics 1 Position register 3CCh
		   38h Graphics 2 Position register 3CAh
 02h	BYTE	register number (0 for single registers)
 03h	BYTE	register value
--------V-10F4-------------------------------
INT 10 - VHRBIOS.SYS - GET VERSION
	AH = F4h
Return: AX = driver version (AH = major, AL = minor)
Program: VHRBIOS.SYS is a driver for the Micro Display Systems "TheGenius"
	  black&white A4/portrait monitor
SeeAlso: AH=F0h"VHRBIOS.SYS",AH=F5h"VHRBIOS.SYS"
--------V-10F5-------------------------------
INT 10 - EGA Register Interface Library - WRITE REGISTER SET
	AH = F5h
	CX = number of registers to write (>1)
	ES:BX -> table of records (see #00224)
Return: nothing
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AX=7F05h,AH=F1h"EGA",AH=F3h"EGA",AH=F4h"EGA"
--------V-10F5-------------------------------
INT 10 - VHRBIOS.SYS - GET VENDOR ID
	AH = F5h
Return: AXBX = vendor ID (4D44h:5349h = 'MDSI' for Micro Display Systems Inc.)
Program: VHRBIOS.SYS is a driver for the Micro Display Systems "TheGenius"
	  black&white A4/portrait monitor
SeeAlso: AH=F0h"VHRBIOS.SYS",AH=F4h"VHRBIOS.SYS",AH=F6h"VHRBIOS.SYS"
--------V-10F6-------------------------------
INT 10 - EGA Register Interface Library - REVERT TO DEFAULT REGISTERS
	AH = F6h
Return: nothing
Note:	provided by the Microsoft Mouse driver, OS/2 compatibility box, and
	  others
SeeAlso: AH=F5h"EGA",AH=F7h"EGA"
--------V-10F6-------------------------------
INT 10 - VHRBIOS.SYS - GET INFO
	AH = F6h
	AL = what to get
	    00h device driver state
		Return: AX = device driver state
	    01h video mode info
		Return: AL = video mode
			DH = screen height in rows
			DL = screen width in columns
Program: VHRBIOS.SYS is a driver for the Micro Display Systems "TheGenius"
	  black&white A4/portrait monitor
SeeAlso: AH=F0h"VHRBIOS.SYS",AH=F4h"VHRBIOS.SYS",AH=96h"VHRBIOS.SYS
--------V-10F7-------------------------------
INT 10 - EGA Register Interface Library - DEFINE DEFAULT REGISTER TABLE
	AH = F7h
	DX = port number
	   Pointer/data chips
	      00h CRTC (3B4h mono modes, 3D4h color modes)
	      08h Sequencer 3C4h
	      10h Graphics Controller 3CEh
	      18h Attribute Controller 3C0h
	   Single registers
	      20h Miscellaneous Output register 3C2h
	      28h Feature Control register (3BAh mono modes, 3DAh color modes)
	      30h Graphics 1 Position register 3CCh
	      38h Graphics 2 Position register 3CAh
	ES:BX -> table of one-byte entries, one byte to be written to each
		 register
Return: nothing
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AH=F0h"EGA",AH=F6h"EGA"
--------V-10FA--BX0000-----------------------
INT 10 - EGA Register Interface Library - INTERROGATE DRIVER
	AH = FAh
	BX = 0000h
Return: BX = 0000h if RIL driver not present
	ES:BX -> EGA Register Interface version number, if present:
	    byte 0 = major release number
	    byte 1 = minor release number
Note:	the RIL is provided by EGA.SYS, the Microsoft Mouse driver, the OS/2
	  compatibility box, and others
SeeAlso: AH=F0h"EGA",AH=F6h"EGA",INT 2F/AX=BC00h
--------K-10FA-------------------------------
INT 10 - FASTBUFF.COM - INSTALLATION CHECK
	AH = FAh
Return: AX = 00FAh if installed
	    ES = segment of resident code
Program: FASTBUFF.COM is a keyboard speedup/screen blanking utility by David
	  Steiner
Index:	screen saver;FASTBUFF
--------V-10FE-------------------------------
INT 10 - TopView - GET SHADOW BUFFER
	AH = FEh
	ES:DI -> assumed video buffer
		B800h:0000h color text/CGA graphics, B000h:0000h mono text,
		  or A000h:0000h EGA/VGA graphics (RSIS environments only)
Return: ES:DI -> actual video buffer for calling process
Desc:	Determine the address of the virtual screen to which the program
	  should write instead of the actual video memory; this permits
	  programs to be multitasked without interfering with each other's
	  output, and allows memory managers to move the video memory to
	  permit larger programs to be loaded.
Notes:	if no multitasker or RSIS-compliant environment is installed, ES:DI is
	  returned unchanged; RSIS is the Relocated Screen Interface
	  Specification
	for display pages other than 0, use AH=05h and AH=0Fh to determine
	  whether a particular page exists
	TopView requires a call to AH=FFh to notify it that the screen has
	  changed; DESQview will check for changes itself until the first call
	  to AH=FFh
SeeAlso: AH=05h,AX=5201h,AH=FFh,INT 15/AX=1024h,INT 21/AH=2Bh"DESQview"
SeeAlso: INT 21/AH=ECh"DoubleDOS"
--------V-10FF-------------------------------
INT 10 - TopView - UPDATE SCREEN FROM SHADOW BUFFER
	AH = FFh
	CX = number of consecutive changed characters
	ES:DI -> first changed character in shadow buffer
Return: nothing
Notes:	avoid CX=0000h
	DESQview will discontinue the automatic screen updating initiated by
	  AH=FEh after this call
	not supported (ignored) by DESQview/X 1.0x
SeeAlso: AH=93h,AH=FEh
--------E-10FF-------------------------------
INT 10 - DJ GO32.EXE 80386+ DOS extender - VIDEO EXTENSIONS
	AH = FFh
	AL = video mode (see #00225)
Program: GO32.EXE is a DOS extender included as part of the 80386 port of the
	  GNU C/C++ compiler by DJ Delorie and distributed as DJGPP
SeeAlso: AH=00h,INT 21/AH=FFh"GO32"

(Table 00225)
Values for GO32 video mode number:
 00h	80x25 text
 01h	default text
 02h	CXxDX text
 03h	biggest text
 04h	320x200 graphics
 05h	default graphics
 06h	CXxDX graphics
 07h	biggest non-interlaced graphics
 08h	biggest graphics
Index:	video modes;GO32
--------V-10FF-------------------------------
INT 10 - VIDEO - Oak VGA BIOS v1.02+ - SET EMULATION
	AH = FFh
	AL = emulation
	    43h ('C') CGA emulation
	    45h ('E') EGA emulation
	    4Dh ('M') Hercules emulation
	    56h ('V') VGA emulation
	ES:DI -> signature string "Calamity"
Return: VGA switched to suggested mode
SeeAlso: AH=00h,AX=007Fh/BH=00h,AX=007Fh/BH=02h,AX=5F01h
--------R-10FF00-----------------------------
INT 10 - CARBON COPY PLUS v5.0 - CHECK IF CC CONNECTED TO CCHELP
	AX = FF00h
Return: BL = state
	    00h not connected
	    01h connected
SeeAlso: AX=FF01h,AX=FF02h
--------R-10FF01-----------------------------
INT 10 - CARBON COPY PLUS v5.0 - DISCONNECT AND RESET LINE
	AX = FF01h
Return: nothing
SeeAlso: AX=FF00h,AX=FF02h
--------R-10FF02-----------------------------
INT 10 - CARBON COPY PLUS v5.0 - GET LAST PHONE NUMBER DIALED
	AX = FF02h
Return: ES:DI -> ASCIZ phone number
SeeAlso: AX=FF00h,AX=FF01h
--------C-11---------------------------------
INT 11 - CPU-generated (80486+) - ALIGNMENT CHECK
Desc:	automatically generated by the CPU when the AC flag is set, the current
	  privilege level is 3, and a misaligned memory access (WORD not on an