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IBM

(International Busiuness Machines) A hardware, software and other service
(International Business Machines) A hardware, software and other service
technology company founded in 1911.
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----------------------------------------------------------------------------
Unique ID: 20
Unique ID: 20-sort-as-20COMTROL
Category: G debuggers/debugging tools
Flag: n/a
----------------------------------------------------------------------------
Expand All @@ -8,4 +8,4 @@ INT 20 - COMTROL HOSTESS i/ISA DEBUGGER - INVOKE FIRMWARE DEBUGGER
???
Return: ???
SeeAlso: INT 21"COMTROL"

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----------------------------------------------------------------------------
Unique ID: 20
Unique ID: 20-sort-as-20Minix
Category: O other operating systems
Flag: n/a
----------------------------------------------------------------------------
Expand All @@ -12,4 +12,4 @@ Program: Minix is a Version 7 Unix-compatible operating system by Andrew
Tanenbaum
Notes: the message contains the system call number (numbered as in V7
Unix(tm)) and the call parameters

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----------------------------------------------------------------------------
Unique ID: 21
Unique ID: 21-sort-as-21--COMTROL
Category: G debuggers/debugging tools
Flag: n/a
----------------------------------------------------------------------------
Expand All @@ -8,4 +8,4 @@ INT 21 - COMTROL HOSTESS i/ISA DEBUGGER - GET SEGMENT FOR CONTROL PROGRAM USE
???
Return: AX = first segment available for control program use
SeeAlso: INT 20"COMTROL",INT 22"COMTROL"

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----------------------------------------------------------------------------
Unique ID: 21
Category: D DOS kernel
Flag: n/a
----------------------------------------------------------------------------

INT 21 - DOS - FUNCTION CALLS
AH = function
Return:
--- most MS-DOS v2+ functions ---
CF clear if successful
CF set on error
AX = error code (see #01680 at AH=59h/BX=0000h)
--- some MS-DOS v1 functions, functions beyond last supported ---
CF unchanged
AL = 00h on error
Notes: high function numbers like AH=6Ch, AH=71h, AH=73h use the
MS-DOS v1 style error return if they're not supported at all
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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-21440210NET10BEUI
Category: N network
Flag: n/a
----------------------------------------------------------------------------
Expand All @@ -22,4 +22,4 @@ Offset Size Description (Table 01495)
04h DWORD pointer to buffer for ???
08h 4 BYTEs ???
0Ch WORD transfer size

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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-21440210NET
Category: N network
Flag: n/a
----------------------------------------------------------------------------
Expand Down Expand Up @@ -42,4 +42,4 @@ Call 10NET 10MEMMGR.SYS entry point with:
Return: CF set
AX = 0000h
BL = 01h

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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402ATASPI
Category: d disk I/O enhancements
Flag: n/a
----------------------------------------------------------------------------
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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402ASPI
Category: d disk I/O enhancements
Flag: n/a
----------------------------------------------------------------------------
Expand Down Expand Up @@ -304,4 +304,4 @@ Offset Size Description (Table 90011)
02h WORD offset to "interrupt handler" procedure
04h 12 BYTEs reserved (0)
SeeAlso: #90010,#01454

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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402CD-ROM
Category: d disk I/O enhancements
Flag: n/a
----------------------------------------------------------------------------
Expand Down Expand Up @@ -151,4 +151,4 @@ Bit(s) Description (Table 01450)
10 audio is playing
11 no disk in drive
12 supports R-W subchannels

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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402Compaq
Category: V video
Flag: n/a
----------------------------------------------------------------------------
Expand All @@ -21,4 +21,4 @@ Offset Size Description (Table 01498)
00h WORD signature 55AAh
02h WORD segment of ???
04h WORD segment of device driver's code

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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402Creative
Category: s sound/speech
Flag: U undocumented function
----------------------------------------------------------------------------
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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402Creative
Category: s sound/speech
Flag: U undocumented function
----------------------------------------------------------------------------
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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402++
Category: D DOS kernel
Flag: n/a
----------------------------------------------------------------------------
Expand All @@ -17,4 +17,4 @@ Notes: format of data is driver-specific
(also see separate entries below for some specific cases)
this function was not supported by Digital Research's DOS Plus
SeeAlso: AX=4400h,AX=4403h"DOS",AX=4404h"DOS",INT 2F/AX=122Bh

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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402DRFAT32
Category: - reserved (and not otherwise classified)
Flag: n/a
----------------------------------------------------------------------------
Expand Down Expand Up @@ -102,4 +102,4 @@ Bit(s) Description (Table 04112)
1 Save Guard enabled (blocks any further writes after a fault)
0 volume may have dirty sectors (set after write operations)
SeeAlso: #04109,#04111

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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402FTPSOFT
Category: N network
Flag: n/a
----------------------------------------------------------------------------
Expand Down Expand Up @@ -30,4 +30,4 @@ Offset Size Description (Table 01499)
Notes: the addresses in the new dispatch table are copied into an internal
jump table which may be reset by calling the function pointed at by
offset 12h

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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402HIGHUMM
Category: m memory management
Flag: n/a
----------------------------------------------------------------------------
Expand Down Expand Up @@ -71,4 +71,4 @@ Return: AX = status code
B2h invalid segment number
Notes: only functions 00h and 01h are always available; the remaining
functions are only enabled if the proper commandline switch is given

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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402VDI
Category: I IBM workstation/terminal emulators
Flag: U undocumented function
----------------------------------------------------------------------------
Expand Down
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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402IFSHLP
Category: - reserved (and not otherwise classified)
Flag: U undocumented function
----------------------------------------------------------------------------
Expand Down
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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402LASTBYTE
Category: m memory management
Flag: U undocumented function
----------------------------------------------------------------------------
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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402CONFIG
Category: D DOS kernel
Flag: U undocumented function
----------------------------------------------------------------------------
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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402MicrosoftEMM386
Category: m memory management
Flag: U undocumented function
----------------------------------------------------------------------------
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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402NDIS
Category: N network
Flag: n/a
----------------------------------------------------------------------------
Expand Down Expand Up @@ -319,4 +319,4 @@ Bit(s) Description (Table 01443)
2 promiscuous
3 all source routing
4-15 reserved, must be zero

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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402NovellDOSEMM386
Category: m memory management
Flag: U undocumented function
----------------------------------------------------------------------------
Expand Down
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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402PCTools
Category: y security
Flag: U undocumented function
----------------------------------------------------------------------------
Expand Down
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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402PC/TCP
Category: N network
Flag: n/a
----------------------------------------------------------------------------
Expand All @@ -21,4 +21,4 @@ Notes: there are a total of 378h bytes of configuration data for IPCUST.SYS
of IPCUST.SYS for backward compatibility with other software which
must read the PC/TCP configuration
SeeAlso: AH=3Fh"IPCUST",AH=40h"IPCUST",AX=4403h"IPCUST"

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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402PGS
Category: V video
Flag: n/a
----------------------------------------------------------------------------
Expand Down Expand Up @@ -40,4 +40,4 @@ Offset Size Description (Table 01484)
12h WORD vertical dots per inch
14h WORD graphics buffer bits per pixel
16h WORD monitor bits per pixel

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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402PenDOS
Category: n non-traditional input devices
Flag: U undocumented function
----------------------------------------------------------------------------
Expand Down
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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402386MAX
Category: m memory management
Flag: U undocumented function
----------------------------------------------------------------------------
Expand Down
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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402HOOKROM
Category: Q DESQview/TopView and Quarterdeck programs
Flag: U undocumented function
----------------------------------------------------------------------------
Expand Down
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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402QEMM386
Category: m memory management
Flag: n/a
----------------------------------------------------------------------------
Expand All @@ -17,4 +17,4 @@ Notes: Quarterdeck recently (June 1993) documented this function, but the
documentation incorrectly states that it is only available for
QEMM 6+
SeeAlso: AX=4402h"HOOKROM",INT 2F/AX=D201h/BX=5145h,INT 67/AH=3Fh

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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402SMARTDRV
Category: c caches/spoolers
Flag: n/a
----------------------------------------------------------------------------
Expand Down Expand Up @@ -47,4 +47,4 @@ Offset Size Description (Table 01447)
24h WORD original (maximum) cache size in 16K pages
26h WORD minimum cache size in 16K pages
28h DWORD pointer to byte flag to increment for locking cache contents

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----------------------------------------------------------------------------
Unique ID: 214402
Unique ID: 214402-sort-as-214402WORKGRP
Category: N network
Flag: n/a
----------------------------------------------------------------------------
Expand Down Expand Up @@ -80,4 +80,4 @@ Call WORKGRP functions 07h-09h with:
Return: STACK unchanged
AX = 0001h
DX = 0000h

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----------------------------------------------------------------------------
Unique ID: 214403
Unique ID: 214403-sort-as-214403OS/x86
Category: E DOS extenders
Flag: U undocumented function
----------------------------------------------------------------------------
Expand Down
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----------------------------------------------------------------------------
Unique ID: 214403
Unique ID: 214403-sort-as-214403Seagate
Category: d disk I/O enhancements
Flag: n/a
----------------------------------------------------------------------------
Expand Down Expand Up @@ -31,4 +31,4 @@ Offset Size Description (Table 01525)
06h WORD segment of command buffer
08h WORD offset of command buffer
0Ah WORD length of command buffer

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----------------------------------------------------------------------------
Unique ID: 214403
Unique ID: 214403-sort-as-214403CD-ROM
Category: d disk I/O enhancements
Flag: n/a
----------------------------------------------------------------------------
Expand Down Expand Up @@ -50,4 +50,4 @@ Notes: output channels 0 and 1 are left and right, 2 and 3 are left prime and
---function 04h---
01h N BYTEs bytes to send directly to the CD-ROM drive without
interpretation

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----------------------------------------------------------------------------
Unique ID: 214403
Unique ID: 214403-sort-as-214403CompaqAG1024
Category: V video
Flag: n/a
----------------------------------------------------------------------------
Expand Down Expand Up @@ -38,4 +38,4 @@ Offset Size Description (Table 01527)
02h WORD ???
04h WORD size of data buffer
06h DWORD -> buffer to receive data

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