interrupd.txt

BIOS中断大全！ 英文文档

Note:	use INT 16/AH=09h to determine whether some of the subfunctions are
	  supported
SeeAlso: INT 16/AH=09h,AH=29h"HUNTER",AH=2Ah"HUNTER"
--------B-1604-------------------------------
INT 16 - KEYBOARD - SET KEYCLICK (PCjr only)
	AH = 04h
	AL = keyclick state
	    00h off
	    01h on
Return: AH destroyed by many BIOSes
SeeAlso: AH=03h,AH=04h"K3PLUS"
--------b-1604-------------------------------
INT 16 - Tandy 2000 - KEYBOARD - FLUSH KEYBOARD BUFFER
	AH = 04h
Note:	this interrupt is identical to INT 51 on the Tandy 2000
SeeAlso: INT 16/AH=00h,INT 16/AH=02h,INT 16/AH=05h"Tandy 2000"
SeeAlso: INT 51"Tandy 2000"
--------K-1604-------------------------------
INT 16 - K3PLUS v6.22+ - SET KEYCLICK
	AH = 04h
	AL = keyclick state
	    00h keyclick off, leave loudness setting unchanged
	    01h keyclick on, leave loudness setting unchanged
	    else
	       bit 0: keyclick enabled if set
	       bits 7-1: new keyclick loudness (non-zero)
Return: AH destroyed by many BIOSes
Note:	Applications which try to set a new loudness, but are unsure of the
	  results of other INT 16/AH=04h implementations, should set the new
	  loudness first, and then call this function again with AL=01h or
	  AL=00h
SeeAlso: AH=03h,AH=04h"KEYBOARD",AX=AF4Dh
--------B-1605-------------------------------
INT 16 - KEYBOARD - STORE KEYSTROKE IN KEYBOARD BUFFER (AT/PS w enh keybd only)
	AH = 05h
	CH = BIOS scan code
	CL = ASCII character
Return: AL = status
	    00h if successful
	    01h if keyboard buffer full
	AH destroyed by many BIOSes
Notes:	under DESQview, a number of "keystrokes" invoke specific
	  DESQview-related actions when they are read from the keyboard
	  buffer (see #00583)
	similarly, some "keystrokes" invoke special functions on the HP 100LX
	  and HP 200LX (see #00584)
SeeAlso: AH=00h,AH=25h"K3",AH=71h,AX=AF4Dh,AH=FFh,INT 15/AX=DE10h
SeeAlso: MEM 0040h:001Eh

(Table 00583)
Values for pseudo-keystrokes for DESQview:
 38FBh or FB00h	switch to next window (only if main menu already popped up)
 38FCh or FC00h	pop up DESQview main menu
 38FEh or FE00h	close the current window
 38FFh or FF00h	pop up DESQview learn menu

(Table 00584)
Values for pseudo-keystrokes for HP 100LX/200LX:
 EE00h	pop up topcard display and set other system manager applications
	  into sleep mode
--------B-1605-------------------------------
INT 16 - KEYBOARD - SELECT KEYBOARD LAYOUT (PCjr only)
	AH = 05h
	AL = function
	    01h set keyboard layout to French
	    02h set keyboard layout to German
	    03h set keyboard layout to Italian
	    04h set keyboard layout to Spanish
	    05h set keyboard layout to UK
	    80h check if function supported
		Return: AL <> 80h if supported
Return: ???
	AH destroyed by many BIOSes
Note:	this function is called by the DOS 3.2 KEYBxx.COM
SeeAlso: AH=92h,AH=A2h,AX=AF4Dh
--------b-1605-------------------------------
INT 16 - Tandy 2000 - KEYBOARD - RESET KEYBOARD
	AH = 05h
Desc:	reset the keyboard and flush the keyboard buffer
Note:	this interrupt is identical to INT 51 on the Tandy 2000
SeeAlso: INT 16/AH=00h,INT 16/AH=02h,INT 16/AH=03h,INT 51"Tandy 2000"
----------160600-----------------------------
INT 16 - AAKEYS - GET NEXT KEYBOARD EVENT
	AX = 0600h
Return:	CF clear if successful
	    AL = next keyboard event in event buffer, FFh if buffer overflowed
	CF set on error
	    AL = 00h buffer empty
	BX destroyed
Program: AAKEYS is a TSR by Anthony Appleyard which records keyboard scan
	  codes in a 256-byte buffer in addition to any normal processing which
	  takes place
Note:	the installation check consists of calling INT 16/AX=06xxh (where 'xx'
	  is any subfunction other than those listed here) and testing whether
	  AX=BEEFh on return
SeeAlso: AX=0601h,AX=0602h,AX=0603h,AX=0604h
----------160601-----------------------------
INT 16 - AAKEYS - EMPTY KEY-EVENT BUFFER
	AX = 0601h
Return:	nothing
SeeAlso: AX=0600h,AX=0602h,AX=0603h,AX=0604h
----------160602-----------------------------
INT 16 - AAKEYS - DISABLE AAKEYS
	AX = 0602h
Return:	AX,DX destroyed
Desc:	restores INT 09 and INT 16 and clears the TSRs signature byte
SeeAlso: AX=0600h,AX=0601h,AX=0603h,AX=0604h
----------160603-----------------------------
INT 16 - AAKEYS - GET KEY-EVENT BUFFER
	AX = 0603h
Return:	ES:BX -> 256-byte circular key-event buffer
	ES:[AX] = offset of head of buffer
	ES:[AX+1] = offset of tail of buffer
SeeAlso: AX=0600h,AX=0601h,AX=0602h,AX=0604h
----------160604-----------------------------
INT 16 - AAKEYS - EMPTY BIOS KEYBOARD BUFFER
	AX = 0604h
Return:	AX destroyed
SeeAlso: AX=0600h,AX=0601h,AX=0602h,AX=0603h
--------B-1609-------------------------------
INT 16 - KEYBOARD - GET KEYBOARD FUNCTIONALITY
	AH = 09h
Return: AL = supported keyboard functions (see #00585)
	AH destroyed by many BIOSes
Note:	this function is only available if bit 6 of the second feature byte
	  returned by INT 15/AH=C0h is set (see #00509)
SeeAlso: AH=03h,AH=0Ah,AH=10h,AH=11h,AH=12h,AH=20h,AH=21h,AH=22h,INT 15/AH=C0h

Bitfields for supported keyboard functions:
Bit(s)	Description	(Table 00585)
 7	reserved
 6	INT 16/AH=20h-22h supported (122-key keyboard support)
 5	INT 16/AH=10h-12h supported (enhanced keyboard support)
 4	INT 16/AH=0Ah supported
 3	INT 16/AX=0306h supported
 2	INT 16/AX=0305h supported
 1	INT 16/AX=0304h supported
 0	INT 16/AX=0300h supported
SeeAlso: #00511
--------K-160A-------------------------------
INT 16 - KEYBOARD - GET KEYBOARD ID
	AH = 0Ah
Return: BX = keyboard ID (see #00586)
	AH destroyed by many BIOSes
Notes:	check return value from AH=09h to determine whether this function is
	  supported
	this function is also supported by the K3PLUS v6.00+ INT 16 BIOS
	  replacement
SeeAlso: AH=09h,AX=AF4Dh,MEM 0040h:00C2h"AMI"

(Table 00586)
Values for keyboard ID:
 0000h	no keyboard attached
 41ABh	Japanese "G" keyboard (translate mode)
	MF2 Keyboard (usually in translate mode)
 54ABh	Japanese "P" keyboard (translate mode)
 83ABh	Japanese "G" keyboard (pass-through mode)
	MF2 Keyboard (pass-through mode)
 84ABh	Japanese "P" keyboard (pass-through mode)
 86ABh	122-key keyboard
 90ABh	old Japanese "G" keyboard
 91ABh	old Japanese "P" keyboard
 92ABh	old Japanese "A" keyboard
--------B-1610-------------------------------
INT 16 - KEYBOARD - GET ENHANCED KEYSTROKE (enhanced kbd support only)
	AH = 10h
Return: AH = BIOS scan code
	AL = ASCII character
Notes:	if no keystroke is available, this function waits until one is placed
	  in the keyboard buffer
	the BIOS scan code is usually, but not always, the same as the hardware
	  scan code processed by INT 09.  It is the same for ASCII keystrokes
	  and most unshifted special keys (F-keys, arrow keys, etc.), but
	  differs for shifted special keys.
	unlike AH=00h, this function does not discard extended keystrokes
	INT 16/AH=09h can be used to determine whether this function is
	  supported, but only on later model PS/2s
SeeAlso: AH=00h,AH=09h,AH=11h,AH=20h,MEM 0040h:0019h,MEM 0040h:001Eh
--------B-1611-------------------------------
INT 16 - KEYBOARD - CHECK FOR ENHANCED KEYSTROKE (enh kbd support only)
	AH = 11h
Return: ZF set if no keystroke available
	ZF clear if keystroke available
	    AH = BIOS scan code
	    AL = ASCII character
Notes:	if a keystroke is available, it is not removed from the keyboard buffer
	unlike AH=01h, this function does not discard extended keystrokes
	some versions of the IBM BIOS Technical Reference erroneously report
	  that CF is returned instead of ZF
	INT 16/AH=09h can be used to determine whether this function is
	  supported, but only on later model PS/2s
SeeAlso: AH=01h,AH=09h,AH=10h,AH=21h,INT 09,INT 15/AH=4Fh
--------B-1612-------------------------------
INT 16 - KEYBOARD - GET EXTENDED SHIFT STATES (enh kbd support only)
	AH = 12h
Return: AL = shift flags 1 (same as returned by AH=02h) (see #00587)
	AH = shift flags 2 (see #00588)
Notes:	AL bit 3 set only for left Alt key on many machines
	AH bits 7 through 4 always clear on a Compaq SLT/286
	INT 16/AH=09h can be used to determine whether this function is
	  supported, but only on later model PS/2s
	many BIOSes (including at least some versions of Phoenix and AMI) will
	  destroy AH on return from functions higher than AH=12h, returning
	  12h less than was in AH on entry (due to a chain of DEC/JZ
	  instructions)
SeeAlso: AH=02h,AH=09h,AH=22h,AH=51h,INT 17/AH=0Dh,MEM 0040h:0017h

Bitfields for keyboard shift flags 1:
Bit(s)	Description	(Table 00587)
 7	Insert active
 6	CapsLock active
 5	NumLock active
 4	ScrollLock active
 3	Alt key pressed (either Alt on 101/102-key keyboards)
 2	Ctrl key pressed (either Ctrl on 101/102-key keyboards)
 1	left shift key pressed
 0	right shift key pressed
SeeAlso: #00582,#00588,MEM 0040h:0017h,#M0010

Bitfields for keyboard shift flags 2:
Bit(s)	Description	(Table 00588)
 7	SysReq key pressed (SysReq is often labeled SysRq)
 6	CapsLock pressed
 5	NumLock pressed
 4	ScrollLock pressed
 3	right Alt key pressed
 2	right Ctrl key pressed
 1	left Alt key pressed
 0	left Ctrl key pressed
SeeAlso: #00587,MEM 0040h:0018h,#M0011
--------J-1613-------------------------------
INT 16 - DOS/V - DOUBLE-BYTE CHARACTER SET SHIFT CONTROL
	AH = 13h
	AL = function
	    00h set shift status
		DX = shift status (see #00589), must preserve internal status
			  bits
	    01h get shift status
		Return: DX = current shift status (see #00589)
Note:	these functions are supplied by the Japanese Front-End Processor
SeeAlso: AH=14h,INT 21/AX=6301h

Bitfields for DOS/V shift status:
Bit(s)	Description	(Table 00589)
 0	full-size rather than half-size
 2-1	character input mode
	00 alphanumeric, 01 Katakana, 10 Hiragana, 11 unused
 5-3	internal status
 6	Romaji enabled
 7	Katakana to Kanji conversion enabled
 15-8	internal status
--------J-1614-------------------------------
INT 16 - DOS/V - SHIFT STATUS DISPLAY CONTROL
	AH = 14h
	AL = function
	    00h enable display
	    01h disable display
	    02h get display state
		Return: AL = current state (00h enabled, 01h disabled)
Desc:	control the screen-bottom shift status row(s) for the Japanese
	  Front-End Processor
SeeAlso: AH=13h,INT 10/AH=19h,INT 10/AH=1Dh
--------B-1620-------------------------------
INT 16 - KEYBOARD - GET 122-KEY KEYSTROKE (122-key kbd support only)
	AH = 20h
Return: AH = BIOS scan code (see AH=10h)
	AL = ASCII character
Note:	use AH=09h to determine whether this function is supported
SeeAlso: AH=00h,AH=09h,AH=10h,AH=21h,AH=22h
--------b-1620------------------------------------
INT 16 - HUNTER 16 - SET TEMPORARY SHIFT
	AH = 20h
	AL = shift status (see #00590)
Notes:	the Husky Hunter 16 is an 8088-based ruggedized laptop.	 Other family
	  members are the Husky Hunter, Husky Hunter 16/80, and Husky Hawk.
	the user can override the specified settings by pressing the keys

Bitfields for HUNTER 16 shift status:
Bit(s)	Description	(Table 00590)
 4	Scroll Lock on
 5	Num Lock on
 6	Caps Lock on
--------K-1620-------------------------------
INT 16 O - K3 v1.5x, K3PLUS v5.xx - GET EXTENDED BUFFER STATE
	AH = 20h
Return: AX = K3 version
	ES:BX -> extended keyboard buffer start
	ES:DX -> extended keyboard buffer end
	ES:SI -> next keystroke
	ES:DI -> last keystroke in buffer
	CX = number of keystrokes in buffer
Program: K3PLUS is an extended keyboard driver by Matthias Paul and Axel C.
	  Frinke, originally based on the K3 extended German keyboard driver
	  by Martin Gerdes published in c't magazine in 1988
Note:	this function was normally unsupported under K3PLUS v6.00-v6.22 and
	  is no longer supported by v6.30+; use AX=AF20h instead
SeeAlso: AH=25h"K3",AX=AF20h,INT 2F/AX=D44Fh/BX=0000h,INT 2F/AX=ED58h
--------B-1621-------------------------------
INT 16 - KEYBOARD - CHECK FOR 122-KEY KEYSTROKE (122-key kbd support only)
	AH = 21h
Return: ZF set if no keystroke available
	ZF clear if keystroke available
	    AH = BIOS scan code
	    AL = ASCII character
Notes:	use AH=09h to determine whether this function is supported
	some versions of the IBM BIOS Technical Reference erroneously report
	  that CF is returned instead of ZF
	K3PLUS v6.00+ supports this function as an alias of AH=11h
SeeAlso: AH=01h,AH=09h,AH=11h,AH=20h,AH=21h
--------b-1621------------------------------------
INT 16 - HUNTER 16 - CONTROL SHIFT KEYS
	AH = 21h
	AL = shift keys to control (see #00582)
	BL = shift state for disabled keys
Note:	If a bit in AL is set the key is disabled and set to the state of the
	  corresponding bit in BL
SeeAlso: AH=20h"HUNTER",AH=22h"HUNTER"
--------B-1622-------------------------------
INT 16 - KEYBOARD - GET 122-KEY SHIFT STATUS (122-key kbd support only)
	AH = 22h
Return: AL = shift flags 1 (see #00587)
	AH = shift flags 2 (see #00588)
Notes:	use AH=09h to determine whether this function is supported
	K3PLUS v6.00+ supports this function as an alias of AH=12h
SeeAlso: AH=02h,AH=09h,AH=12h,AH=20h,AH=21h
--------b-1622------------------------------------
INT 16 - HUNTER 16 - CONTROL CTRL-ALT-DEL
	AH = 22h
	AL = new Ctrl-Alt-Del state (00h enabled, nonzero disabled)
	BX = 0708h
	CX = 0910h
	DX = 1112h
Return: AL = 00h if successful
SeeAlso: AH=21h"HUNTER",AH=23h"HUNTER",AH=2Ah
--------b-1623------------------------------------
INT 16 - HUNTER 16 - CONTROL EMERGENCY BREAKOUT
	AH = 23h
	AL = new state of breakout (00h enabled, nonzero disabled)
	BX = 0708h
	CX = 0910h
	DX = 1112h
Return: AL = 00h if successful
Desc:	Enables or disables the emergency breakout feature, where the
	  Hunter 16 at power on checks whether the X and P keys are pressed.
	  If so the machine will boot rather than continue the running program
SeeAlso: AH=22h"HUNTER"
--------b-1624------------------------------------