interrupa.txt

BIOS中断大全！ 英文文档

Interrupt List			Release 61		Last change 16jul00
Copyright (c) 1989-1999,2000 Ralf Brown
--------!---FILELIST-------------------------
Please redistribute the following files unmodified as a group, in a quartet of
archives named INTER61A through INTER61D (preferably the original authenticated
PKZIP archives):
	INTERRUP.1ST	the read-me file, containing credits, availability info
	INTERRUP.A	INT 00 through INT 10/BE  \
	INTERRUP.B	INT 10/BF through INT 15/0F\
	INTERRUP.C	INT 15/10 through INT 15/E7 \
	INTERRUP.D	INT 15/E8 through INT 1A/B0  \
	INTERRUP.E	INT 1A/B1 through INT 1F      \	  total 2520 pages at
	INTERRUP.F	INT 20 through INT 21/43       \  60 lines per page,
	INTERRUP.G	INT 21/44 through INT 21/5E	\ 2684 with INTPRINT -p
	INTERRUP.H	INT 21/5F through INT 21/E2	 >(8754 entries)
	INTERRUP.I	INT 21/E3 through INT 21/F1	/ (4135 tables)
	INTERRUP.J	INT 21/F2 through INT 25       /
	INTERRUP.K	INT 26 through INT 2F/15      /
	INTERRUP.L	INT 2F/16 through INT 2F/79  /
	INTERRUP.M	INT 2F/7A through INT 2F/D9 /
	INTERRUP.N	INT 2F/DA through INT 50   /
	INTERRUP.O	INT 51 through INT 61	  /
	INTERRUP.P	INT 62 through INT 6A	 /
	INTERRUP.Q	INT 6B through INT 91	/
	INTERRUP.R	INT 92 through INT FF  /
	INTERRUP.PRI	a brief introduction to interrupts
	INTPRINT.COM	a simple formatter that also generates a list summary
	INTPRINT.DOC	instructions for INTPRINT
	OVERVIEW.LST	brief listing of major uses of each interrupt
	86BUGS.LST	a listing of CPU bugs and undocumented features
	BIBLIO.LST	bibliography of information sources for the list
	CMOS.LST	a description of the CMOS RAM data bytes
	FARCALL.LST	APIs available through FAR CALLs
	GLOSSARY.LST	a glossary of terms, abbreviations, and acronyms
	MEMORY.LST	format of the BIOS data area
	OPCODES.LST	a listing of recent and undocumented CPU instructions
	PORTS.A		a listing of I/O ports 0000h-013Fh
	PORTS.B		a listing of I/O ports 0140h-0AD5h
	PORTS.C		a listing of I/O ports 0AD6h-FFFFh
	CATEGORY.KEY	descriptions of divider-line category letters
	COMBINE.COM	combine the pieces of the list into a single file
	COMBINE.DOC	documentation for COMBINE
The following files should be distributed in an archive called INTER61E:
	86BUGSnn.ZIP	programs to test for CPU bugs
	COMBINE.ASM	source code for COMBINE.COM
	INT.*		invoke interrupts from commandline
	INTHLP??.ZIP	Interrupt Helper viewer for the interrupt list
	INTLIST.E	Epsilon extension for handling list
	INTPRINT.C	source code for INTPRINT
	INTSUM??.ZIP	interrupt list browser (Interrupt Summary)
	IVIEW*.ZIP	another interrupt list browser
Finally, the following should be distributed in an archive called INTER61F:
	INT2RTF.ZIP	Slava Gostrenko's Windows Help converter
	INT2WHLP.ZIP	convert list into Windows Help database
	INTERRUP.ICO	icon for interrupt list
	HINTSRCH.ZIP	WinHelp DLL for full-text searches of interrupt list
	IL2ME???.ZIP	convert list into Multi-Edit help database
	INT2GUID.*	convert list into TurboPower GUIDE or POPHELP database
	INT2HLP.ZIP	convert list into QuickHelp database
	INT2IPF.ZIP	convert list into OS/2 .IPF database
	INT2QH.*	program to convert list into QuickHelp database
	INT2TPH.ZIP	convert to Turbo/Borland Pascal help file (.TPH)
	INTHELP.*	convert list into TurboPower GUIDE database
	RB2NG???.ZIP	convert list into Norton Guides database
	WH_ED*.ZIP	WinHelp-file editor
--------!---CONTACT_INFO---------------------
If you notice any mistakes or omissions, please let me know!  It is only with
YOUR help that the list can continue to grow at the current rate.  Please send
all changes to me rather than distributing a modified version of the list.

Please read the file INTERRUP.1ST before asking me any questions.  You may find
that they have already been addressed.

	 Ralf Brown

Internet: [e-mail] (currently forwards to [e-mail])
FIDO: Ralf Brown 1:129/26.1
	or post a message to me in the DR_DEBUG echo (I probably won't see it
	unless you address it to me)

I reply to all e-mail submissions, but some of my replies bounce because of
bad return paths.  If you don't get a response from me within a reasonable
period of time, send it again with a better return path (many mailers are
improperly configured and do not produce a valid From: address).
--------!---Note-----------------------------
See INTERRUP.1ST for the key to system abbreviations and a list of the
trademarks mentioned here.
--------!---DISCLAIMER-----------------------
DISCLAIMER:  THIS MATERIAL IS PROVIDED "AS IS".	 I verify the information
contained in this list to the best of my ability, but I cannot be held
responsible for any problems caused by use or misuse of the information,
especially for those functions not officially documented.  If it is marked
"internal" or undocumented, you should check it carefully to make sure it
works the same way in your version of the software (and please let me know
whether or not it works the same way).	Information marked with "???" is
known to be incomplete or guesswork.
--------!---FLAGS----------------------------
The use of -> instead of = signifies that the indicated register or register
pair contains a pointer to the specified item, rather than the item itself.
Register pairs (such as AX:BX) indicate that the item is split across the
registers, with the high-order half in the first register.

One or more letters may follow the interrupt number; they have the following
meanings:  U - undocumented function, u - partially documented function,
P - available only in protected mode, R - available only in real or V86 mode,
C - callout or callback (usually hooked rather than called),
O - obsolete (no longer present in current versions)
--------!---CATEGORIES-----------------------
The ninth column of the divider line preceding an entry usually contains a
classification code (the entry has not been classified if that character is
a dash).  The codes currently in use are:
	A - applications, a - access software (screen readers, etc),
	B - BIOS, b - vendor-specific BIOS extensions,
	C - CPU-generated, c - caches/spoolers,
	D - DOS kernel, d - disk I/O enhancements,
	E - DOS extenders, e - electronic mail, F - FAX,
	f - file manipulation, G - debuggers/debugging tools, g - games,
	H - hardware, h - vendor-specific hardware,
	I - IBM workstation/terminal emulators, i - system info/monitoring,
	J - Japanese, j - joke programs,
	K - keyboard enhancers, k - file/disk compression,
	l - shells/command interpreters,
	M - mouse/pointing device, m - memory management,
	N - network, n - non-traditional input devices,
	O - other operating systems,
	P - printer enhancements, p - power management,
	Q - DESQview/TopView and Quarterdeck programs,
	R - remote control/file access, r - runtime support,
	S - serial I/O, s - sound/speech,
	T - DOS-based task switchers/multitaskers, t - TSR libraries
	U - resident utilities, u - emulators,
	V - video, v - virus/antivirus,
	W - MS Windows,
	X - expansion bus BIOSes, x - non-volatile config storage
	y - security, * - reserved (and not otherwise classified)
--------C-00---------------------------------
INT 00 C - CPU-generated - DIVIDE ERROR
Desc:	generated if the divisor of a DIV or IDIV instruction is zero or the
	  quotient overflows the result register; DX and AX will be unchanged.
Notes:	on an 8086/8088, the return address points to the following instruction
	on an 80286+, the return address points to the divide instruction
	an 8086/8088 will generate this interrupt if the result of a division
	  is 80h (byte) or 8000h (word)
SeeAlso: INT 04,OPCODE "AAD"
--------G-00---------------------------------
INT 00 - Zenith - ROM DEBUGGER
Desc:	invokes the ROM Debugger when at the BIOS level; equivalent to
	  pressing Ctrl-Alt-Ins on booting.
Note:	since DOS revectors INT 00, it is necessary to restore this vector to
	  its original ROM BIOS value in order to invoke the debugger once DOS
	  loads
SeeAlso: INT 03"Columbia"
--------C-01---------------------------------
INT 01 C - CPU-generated - SINGLE STEP
Desc:	generated after each instruction if TF (trap flag) is set; TF is
	  cleared on invoking the single-step interrupt handler
Notes:	interrupts are prioritized such that external interrupts are invoked
	  after the INT 01 pushes CS:IP/FLAGS and clears TF, but before the
	  first instruction of the handler executes
	used by debuggers for single-instruction execution tracing, such as
	  MS-DOS DEBUG's T command
SeeAlso: INT 03"CPU"
--------C-01---------------------------------
INT 01 C - CPU-generated (80386+) - DEBUGGING EXCEPTIONS
Desc:	generated by the CPU on various occurrences which may be of interest
	  to a debugger program
Note:	events which may trigger the interrupt:
	  Instruction address breakpoint fault - will return to execute inst
	  Data address breakpoint trap - will return to following instruction
	  General detect fault, debug registers in use
	  Task-switch breakpoint trap
	  undocumented 386/486 opcode F1h - will return to following instruc
SeeAlso: INT 03"CPU"
--------H-02---------------------------------
INT 02 C - external hardware - NON-MASKABLE INTERRUPT
Desc:	generated by the CPU when the input to the NMI pin is asserted
Notes:	return address points to start of interrupted instruction on 80286+
	on the 80286+, further NMIs are disabled until the next IRET
	  instruction, but one additional NMI is remembered by the hardware
	  and will be serviced after the IRET instruction reenables NMIs
	maskable interrupts may interrupt the NMI handler if interrupts are
	  enabled
	although the Intel documentation states that this interrupt is
	  typically used for power-failure procedures, it has many other uses
	  on IBM-compatible machines:
		Memory parity error: all except Jr, CONV, and some machines
				  without memory parity
		Breakout switch on hardware debuggers
		Coprocessor interrupt: all except Jr and CONV
		Keyboard interrupt: Jr, CONV
		I/O channel check: CONV, PS50+
		Disk-controller power-on request: CONV
		System suspend: CONV
		Real-time clock: CONV
		System watch-dog timer, time-out interrupt: PS50+
		DMA timer time-out interrupt: PS50+
		Low battery: HP 95LX
		Module pulled: HP 95LX
--------m-02----SI0714-----------------------
INT 02 U - STB RAPIDMAP.SYS - ???
	SI = 0714h
	ES:DI -> ???
Return: ???
SeeAlso: INT 67/AX=6100h"STB",PORT 00E1h"STB"
--------C-03---------------------------------
INT 03 C - CPU-generated - BREAKPOINT
Desc:	generated by the one-byte breakpoint instruction (opcode CCh)
Notes:	used by debuggers to implement breakpoints, such as MS-DOS DEBUG's G
	  command
	also used by Turbo Pascal versions 1,2,3 when {$U+} specified
	return address points to byte following the breakpoint instruction
	called by Novell DOS 7 EMM386 after displaying an exception error
	  message (GPF, illegal opcodes, etc.) and before waiting for user
	  input
	called by QEMM-386 if the user presses 'I' (undocumented) when prompted
	  after an exception error message
SeeAlso: INT 01"CPU"
--------G-03---------------------------------
INT 03 - Columbia PCs (desktop,VP portables) - ROM DEBUGGER
Desc:	invokes the ROM Debugger if INT 03 has not been revectored; equivalent
	  to pressing Esc on booting.
SeeAlso: INT 00"Zenith",INT 03"Realia"
--------G-03---------------------------------
INT 03 - Realia COBOL - DEBUGGER SUPPORT
Note:	Realia COBOL checks for a signature eight bytes prior to the interrupt
	  handler when it starts up
BUG:	if the offset of the INT 03 vector is less than 8, the compiler and
	  all executables generated by it will crash the system
SeeAlso: INT 03"Columbia"
--------G-03---------------------------------
INT 03 U - Watcom WVIDEO, Watcom WD - OUTPUT DEBUGGING MESSAGE
	STACK:	DWORD	selector
		DWORD	offset of ASCIZ message to display
Notes:	the INT 03h instruction which invokes the debugger must be followed by
	  a JMP SHORT and the signature string "WVIDEO"
	to check whether this interface is available, define a public byte
	  variable named ___WD_Present, which the debugger will set to 01h
	  before running the program
SeeAlso: AX=0910h
--------U-03---------------------------------
INT 03 - DTown Utilities - POP UP
Program: DTown Software Development's DTown Utilities contains various tools
	  which are useful to programmers, such as a memory viewer and
	  disassembler
Note:	DTU pops up on INT 03 (if not hooked by a debugger) to allow the
	  user to inspect memory or code when the machine crashes; various
	  memory managers will invoke INT 03 when displaying a CPU exception
	  error message (either automatically or when the user presses a
	  particular key)
SeeAlso: INT 2D/AL=20h"DTown"
--------G-030000-----------------------------
INT 03 - Soft-ICE - BACK DOOR COMMANDS - GET Soft-ICE VERSION
	AX = 0000h
	SI = magic value 4647h ('FG')
	DI = magic value 4A4Dh ('JM')
Return: SI = BCD version (0280h = v2.80)
SeeAlso: INT 03/AX=0910h
--------G-0301-------------------------------
INT 03 - Soft-ICE - BACK DOOR COMMANDS - ???
	AH = 01h
	SI = magic value 4647h ('FG')
	DI = magic value 4A4Dh ('JM')
Return: ???
SeeAlso: AX=0000h,AX=090Bh,INT 03/AH=10h
--------G-030900-----------------------------
INT 03 - Soft-ICE v2.80 - BACK DOOR COMMANDS - ???