interrup.d

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		Return: AX = 0000h
			BX = 0000h
			DX:CX -> ???
	    00CCh uninstall
		Return: AX = status
			    0000h successful
			    FFFDh unable to unload because vectors taken
	    00CDh ???
		Return: AX = 0000h
			BX = 0000h
			DX:CX -> ???
	    other
		Return: AX = 5345h ('SE')
Program: TWTSR is a TSR which allows the TextWare hypertext browser to be
	  popped up via hotkey
SeeAlso: AX=D724h
--------U-164252-----------------------------
INT 16 - TEXTCAP 2.0 - INSTALLATION CHECK
	AX = 4252h
Return: AX = 5242h if installed
Program: TEXTCAP 2.0 is a heavily modified (by Gisbert W. Selke) version of
	  the PC Magazine utility CAPTURE written by Tom Kihlken
SeeAlso: AX=4253h,AX=4254h
--------U-164253-----------------------------
INT 16 - TEXTCAP 2.0 - UNINSTALL
	AX = 4253h
Return: AX = segment of resident code
Notes:	the uninstall code does not check whether interrupt vectors have been
	  chained by other programs
	the caller must free the main memory block (using the returned segment)
SeeAlso: AX=4252h,AX=4254h
--------U-164254-----------------------------
INT 16 - TEXTCAP 2.0 - DUMP TEXT SCREEN TO FILE
	AX = 4254h
Return: AX = status
	    4254h if screen dump will be written as soon as disk becomes idle
	    5442h if screen dump written
SeeAlso: AX=4252h,AX=4253h
--------e-164500-----------------------------
INT 16 - Shamrock Software EMAIL - GET STATUS
	AX = 4500h
	DL = port number (01h = COM1)
	ES:BX -> 13-byte buffer for ASCIZ name
Return: AX = 4D00h if EMAIL installed on specified port
	    ES:BX -> "" if no connection
		  -> "*" if connection but caller has not identified name
		  -> name otherwise
	    CX = version (CH = major, CL = minor)
	    DL = privilege level of user (00h = guest)
	    DH = chosen language (00h German, 01h English)
SeeAlso: AX=4501h,AX=4502h
--------e-164501-----------------------------
INT 16 - Shamrock Software EMAIL - GET ELAPSED ONLINE TIME AND MAXIMUM TIME
	AX = 4501h
	DL = port number (01h = COM1)
Return: AX = 4D00h if EMAIL installed on specified port
	    BX = maximum connect time in clock ticks
	    CX = maximum connect time for guests (without name) in clock ticks
	    DX = elapsed connect time of current user in clock ticks
SeeAlso: AX=4500h
--------e-164502-----------------------------
INT 16 - Shamrock Software EMAIL - GET CURRENT COMMUNICATIONS PARAMETERS
	AX = 4502h
	DL = port number (01h = COM1)
Return: AX = 4D00h if EMAIL installed on specified port
	    BL = current value of serial port's Line Control Register
	    BH = flags (see #00593)
	    CX = selected country code (33 = France, 49 = Germany, etc)
	    DX = baudrate divisor (115200/DX = baudrate)
SeeAlso: AX=4500h

Bitfields for Shamrock Software EMAIL flags:
Bit(s)	Description	(Table 00593)
 0	ISO code
 1	pause
 2	linefeed
 3	ANSI sequences
--------e-164503-----------------------------
INT 16 - Shamrock Software EMAIL - SPECIFY COMMAND-WORD FOR USER FUNCTION
	AX = 4503h
	DL = port number (01h = COM1)
	DH = maximum execution time in clock ticks (00h = 5 seconds)
	ES:BX -> ASCIZ string with new user command-word
Return: AX = 4D00h if EMAIL installed on specified port
Notes:	a single user command (consisting of only uppercase letters and digits)
	  may be defined, and remains valid until it is overwritten or the
	  EMAIL program terminates; the user command must be activated by
	  calling AX=4504h at least once.
	an existing command word may be redefined with this function
SeeAlso: AX=4504h,AX=4505h
--------e-164504-----------------------------
INT 16 - Shamrock Software EMAIL - CHECK FOR USER FUNCTION COMMAND-WORD
	AX = 4504h
	DL = port number (01h = COM1)
	ES:BX -> 80-byte buffer for ASCIZ user input line
Return: AX = 4D00h if EMAIL installed on specified port
	    DL = flags
		bit 0: user function supported (always set)
		bit 1: user entered user-function command word
	    if DL bit 1 set,
		ES:BX buffer contains line entered by user which begins with
			the defined command word and has been converted to all
			caps
Note:	caller must process the returned commandline and invoke AX=4505h
	  within five seconds with the result of that processing
SeeAlso: AX=4503h,AX=4505h
--------e-164505-----------------------------
INT 16 - Shamrock Software EMAIL - SEND RESULT OF USER FUNCTION
	AX = 4505h
	DL = port number (01h = COM1)
	DH = error flag
	    bit 3: set on error
	ES:BX -> ASCIZ text to return to user, max 1024 bytes
Return: AH = 4Dh if EMAIL installed on specified port
	AL = status
	    00h successful
	    02h unable to perform function (timeout, prev call not complete)
	    other error
Notes:	if the error flag in DH is set, the string is not sent and an error
	  message is generated instead; if this function is not called within
	  five seconds of AX=4504h, EMAIL automatically generates an error
	  message
	the string is copied into an internal buffer, allowing this function's
	  caller to continue immediately
SeeAlso: AX=4503h,AX=4504h,INT 17/AX=2400h
--------e-164506-----------------------------
INT 16 - Shamrock Software EMAIL - MONITOR XMODEM DOWNLOAD
	AX = 4506h
	DL = port number (01h = COM1)
	ES:BX -> 13-byte buffer for ASCIZ filename
Return: AX = 4D00h if EMAIL installed on specified port
	    DH = Xmodem status
		00h no XGET command given
		01h XGET in progress
		02h XGET completed successfully
	    ES:BX buffer filled with last filename given to XGET command
		(without path)
Note:	DH=02h will only be returned once per XGET; subsequent calls will
	  return DH=00h
SeeAlso: AX=4500h,INT 17/AX=2408h
--------K-164B-------------------------------
INT 16 - Frank Klemm Keyboard Driver v2.0 - API
	AH = 4Bh
	CX = code or action
	    0000h-FEFFh key code
	    FF00h-FFFFh action (see #00594)
	BL = scan code (normal keys) or scan code + 60h (enhanced keys)
	BH = shift state (see #00595)
Return: CX = previous code or action

(Table 00594)
Values for Frank Klemm Keyboard Driver action code:
 FF00h	no action
 FF01h	hardcopy
 FF02h	left shift
 FF03h	right shift
 FF04h	left Ctrl
 FF05h	right Ctrl
 FF06h	left Alt
 FF07h	right Alt / AltGr
 FF08h	CapsLock
 FF09h	NumLock
 FF0Ah	ScrlLock
 FF0Bh	Insert (returns code 5200h or 52E0h)
 FF0Ch	Pause
 FF0Dh	Ctrl-Break function
 FF0Eh	warm boot via far jump to F000h:FFF0h
 FF0Fh	terminate current program
 FF10h	key for entering keys via Alt-numpad (read-only)
 FF11h	clear keyboard buffer
 FF12h	reset (warmboot on XT)
 FF13h	mouse sensitivity (read-only)
 FF14h	keyjobs (read-only)
 FF15h	SysRq
 FF16h	turn on CPU cache (486+)
 FF17h	turn off CPU cache (486+)
SeeAlso: #00595

(Table 00595)
Values for Frank Klemm Keyboard Driver shift state:
 00h	no shift keys
 01h	either Shift
 02h	either Ctrl
 03h	left Alt
 04h	Ctrl + Alt
---standard keyboard---
 05h	right Alt / AltGr
---Russian keyboard---
 05h	Russian + no shift keys
 06h	Russian + either Shift
SeeAlso: #00594
--------K-164D4F-----------------------------
INT 16 - M16_KBD.COM v5.6 - INSTALLATION CHECK
	AX = 4D4Fh
Return: AX = 6F6Dh if installed
	    ES = segment of resident code
Program: M16_KBD is a shareware Cyrillic keyboard driver by I.V. Morozov
SeeAlso: INT 10/AX=1130h/BX=4D4Fh
--------J-165000-----------------------------
INT 16 - KEYBOARD - AX PC - SET KEYBOARD COUNTRY CODE
	AX = 5000h
	BX = country code
	    0001h USA (English), 0051h Japan
Return: AL = status
	    00h successful
	    01h bad country code
	    02h other error
Notes:	the K3PLUS v6.00+ INT 16 BIOS replacement will switch between the
	  supported country specific layout (e.g. BX=0031h Germany, BX=001Fh
	  Netherlands, BX=0020h Belgium, BX=0022h Spain) (as with <Ctrl>+
	  <Alt>+<F2>) and K3PLUS' transparent mode (as with <Ctrl>+<Alt>+<F1>).
	In transparent mode (BX=0001h), K3PLUS chains to the underlying
	  driver (normally the BIOS driver with US-layout). K3PLUS beeps on
	  mode changes
SeeAlso: AX=5001h,AX=AF4Dh,INT 10/AX=5000h,INT 17/AX=5000h
--------J-165001-----------------------------
INT 16 - KEYBOARD - AX PC - GET KEYBOARD COUNTRY CODE
	AX = 5001h
Return: AL = status
	    00h successful
		BX = country code
	    02h error
Note:	also supported by K3PLUS v6.00+
SeeAlso: AX=5000h,INT 10/AX=5001h,INT 17/AX=5001h
--------J-1651-------------------------------
INT 16 - KEYBOARD - AX PC - READ SHIFT KEY STATUS
	AH = 51h
Return: AL = standard shift key states (see #00582,#00587)
	AH = Kana lock (00h off, 01h on)
Note:	also supported by K3PLUS v6.00+, but K3PLUS always returns AH=00h
SeeAlso: AH=02h,AH=12h,AH=22h
--------t-165453BX5242-----------------------
INT 16 - TSRBONES - INSTALLATION CHECK
	AX = 5453h ('TS')
	BX = 5242h ('RB')
	CX = 4F4Eh ('ON')
	DX = 4553h ('ES')
Return: AX = 4553h if installed
	BX = 4F4Eh if installed
	CX = 5242h if installed
	DX = 5453h if installed
Program: TSRBONES is a skeletal TSR framework by Robert Curtis Davis
Note:	these values are the default as the TSRBONES package is distributed,
	  but will normally be changed when implementing an actual TSR with
	  the TSRBONES skeleton
SeeAlso: INT 2D/AL=00h"AMIS"
--------K-165472BX4C54-----------------------
INT 16 - TrLit - API
	AX = 5472h ('Tr')
	BX = 4C54h ('Lt')
	CL = function
	    00h installation check
		Return:	DX = 1234h if installed
			    AX = 100*version (binary, 00E9h = v2.33)
			    CX = resident code segment
	    01h get original INT 09 vector
		Return: ES:BX -> previous handler
	    02h get original INT 16 vector
		Return: ES:BX -> previous handler
	    else chained
	CH = 00h (for backward compatibility with versions before 2.30)
Program: TrLit is a Russian keyboard transliterator by Rostislav Krasny
Index:	installation check;TrLit
--------A-165500-----------------------------
INT 16 C - Microsoft Word internal - MICROSOFT WORD COOPERATION WITH TSR
	AX = 5500h
Return: AX = 4D53h ('MS') if keyboard TSR present
Notes:	during startup, Microsoft Word tries to communicate with any TSRs
	  that are present through this call.
	if the return is not 4D53h, Word installs its own INT 09 and INT 16
	  handlers; otherwise it assumes that the TSR will handle the keyboard
SeeAlso: AX=55FFh,INT 1A/AX=3601h
--------A-1655FE-----------------------------
INT 16 CU - Microsoft QBASIC internal - MICROSOFT COOPERATION WITH TSR
	AX = 55FEh
	DX = function
	    0000h initialize
		ES:BX -> ??? function
		ES:CX -> ??? structure
	    FFFFh shutdown/reset
Return: AX = result
	    4D4Bh only the INT 1B handler will be installed.
	    other: handlers for INT 08, INT 09, INT 16, INT 1B, and INT 1C
		  are installed
Notes:	The pointer in ES:CX seems to point at a structure defining a callback
	  function when new keyboard keys are pressed. If a TSR returns
	  AX=4D4Bh, QBASIC will stop (with IRQ's and interrupts enabled).
	these calls are also made by MS-DOS 6.0's DOSSHELL at startup, exit,
	  and before/after shelling out
	since EDIT.COM and HELP.COM merely invoke QBASIC, those two programs
	  will also cause this interface to be invoked
	K3PLUS v6.07+ supports this function, but will never invoke the
	  callback function
SeeAlso: AX=5500h,AX=AF4Dh,INT 1A/AX=3601h
--------U-1655FF-----------------------------
INT 16 C - Microsoft Word - TSR COOPERATION???
	AX = 55FFh
	BX >= 0004h (version of Microsoft Word [BL = major] ???)
	CX = function
	    0000h set ??? flag
	    other clear ??? flag
Notes:	hooks intercepting this call are present in SWAPSH and SWAPDT v1.77j,
	  distributed with PC Tools v7, as well as the Trusted Access
	  SCRNBLNK.COM; this may be part of the standard TesSeRact library
	known to be called by the German edition of Microsoft Word 5.0
SeeAlso: AX=5500h,INT 2F/AX=5453h
--------c-165758BX4858-----------------------
INT 16 U - Netroom CACHECLK - INSTALLATION CHECK
	AX = 5758h
	BX = 4858h ('HX')
	DX = 4443h ('DC')
	CX <> 5758h
Return: BX = 6878h if installed
	CX = 6463h if installed
	    AX = code segment of TSR
	    CX = internal version??? (v3.00 returns 0100h)
Program: CACHECLK is a "cloaked" disk cache included with Netroom
Notes:	if CX=5758h on entry, CACHECLK returns with all registers unchanged
	the cache statistics are located early in the segment pointed at by
	  AX on return
SeeAlso: INT 2F/AX=5758h
--------m-165758BX5754-----------------------
INT 16 U - Netroom ??? - ???
	AX = 5758h
	BX = 5754h
	???
Return: ???
--------m-165758BX5755-----------------------
INT 16 U - Netroom ??? - ???
	AX = 5758h
	BX = 5755h
	DS:SI -> ???
Return: ???
--------m-165758BX5756-----------------------
INT 16 U - Netroom ??? - INSTALLATION CHECK
	AX = 5758h
	BX = 5756h
Return: BX <> 5756h if installed
--------m-165758BX5858-----------------------
INT 16 U - Netroom PRENET - GET OLD INTERRUPT VECTORS
	AX = 5758h