RBIL61 - CAS

CALL F000h:FF82h - PHOENIX CASCADE BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. A20(Address line 20) The 80286 and higher CPUs allow addresses in real mode to extend slightly beyond the one megabyte mark, which causes an incompatibility with some older programs which expect such addresses to wrap back to the beginning of the address space. For complete compatibility with the 8088, newer machines thus contain circuitry which permits the twenty-first address line (A20) to be disabled. The CPU then effectively has only twenty address lines in real mode, just as the 8088 does, and addresses which would extend beyond the one megabyte mark wrap to the beginning of the address space. See also High Memory Area, Real Mode. CONTROL ENTRY {#idx159164}

CALL xxxxh:xxxxh - Plug-and-Play BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. v1.0A {#idx160149}

Frequently Asked Questions {#idx177086}

INT 10 - VESA(Video Electronics Standards Association) An industry group which sets both hardware and software standards and recommendations. The term VESA is also used to denote compliance with the VESA SuperVGA BIOS Extensions, a standard set of video BIOS functions for accessing video modes of higher resolution than those defined by IBMInternational Busiuness Machines. SuperVGA BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. (VBE(VESA BIOS Extensions) The common software interface for video cards providing support for high resolution and bit depth.) - GET SuperVGA INFORMATION {#idx4245}{#idx4249}

INT 10 - VIDEO - Compaq Extensions - TURN OFF REVERSE VIDEO {#idx6621}

INT 10 - VIDEO - Compaq Extensions - TURN ON REVERSE VIDEO {#idx6611}

INT 10 - VIDEO - GET DISPLAY COMBINATION CODE (PSIBM PS/2, any model,VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers./MCGAMulti-Color Graphics Array(Multi-Color Graphics Array) The low-end color adapter offered in IBMInternational Busiuness Machines's early PS/2IBM PS/2, any model series machines.) {#idx3460}

INT 10 - VIDEO - READ CHARACTER AND ATTRIBUTE ATIBM PC AT CURSOR POSITION {#idx2072}

INT 13 - DISK - ??? (Western Digital "Super BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly.") {#idx9693}

INT 13 - DISK - GET DISK TYPE (XTIBM PC XT 1986/1/10 or later,XT286IBM PC XT/286,ATIBM PC AT,PSIBM PS/2, any model) {#idx9074}

INT 13 - DISK - READ SECTOR(S) INTO MEMORY {#idx8026}

INT 13 - DISK - WRITE DISK SECTOR(S) {#idx8121}

INT 15 - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. PCI BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. - CPU(Central Processing Unit) The microprocessor which executes programs on your computer. SPEED CONTROL {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx23619}

INT 15 - CASSETTE - READ DATA (PCIBM PC and PCjr only) {#idx15534}{#idx15547}{#idx15549}{#idx15556}

INT 15 - CASSETTE - TURN OFF TAPE DRIVE'S MOTOR (PCIBM PC and PCjr only) {#idx15418}{#idx15429}{#idx15433}

INT 15 - CASSETTE - TURN ON TAPE DRIVE'S MOTOR (PCIBM PC and PCjr only) {#idx15378}{#idx15389}{#idx15393}

INT 15 - CASSETTE - WRITE DATA (PCIBM PC and PCjr only) {#idx15631}{#idx15646}{#idx15648}

INT 15 - Compaq LTE Lite - GET ??? {#idx23529}

INT 15 - DESQview v2.50+ - SOCKET API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx24577}

INT 15 - HUNTER 16 - SET INT 72h VECTOR {#idx20939}

INT 15 - Intel System Management Bus - REQUEST {#idx20093}

INT 15 - Phoenix BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. v4.0 - GET MEMORY SIZE FOR >64M CONFIGURATIONS {#idx24884}

INT 15 - SYSTEM - GET CONFIGURATION (XTIBM PC XT >1986/1/10,ATIBM PC AT mdl 3x9,CONVIBM Convertible,XT286IBM PC XT/286,PSIBM PS/2, any model) {#idx21696}

INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - SEND MESSAGE - "WRITE" - WRITE TO OBJECT {#idx17225}

INT 16 - HP Vectra ES/QS/RS EX-BIOS - SET HIL Extended BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. INTERRUPT NUMBER {#idx26299}

INT 18 - DISKLESS BOOT HOOK (START CASSETTE BASIC(Beginner's All-purpose Symbolic Instruction Code) A programming language originally designed as a means of teaching FORTRAN. There are many variations of BASIC with differing capabilities; the majority are interpreted but compiled BASIC is becoming more popular. All genuine IBMInternational Busiuness Machines personal computers (including the latest PS/2IBM PS/2, any model models) come equipped with a cassette-based BASIC interpreter in ROM.) {#idx29869}{#idx29886}

INT 1A - PCI BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. v2.0c+ - READ CONFIGURATION DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. (Intel devices) {#idx36155}{#idx36597}{#idx36618}{#idx37057}{#idx37084}{#idx37089}{#idx37090}{#idx37091}{#idx37092}{#idx37176}{#idx37291}{#idx37292}{#idx38472}

INT 1A - PCjr, Tandy 2500???, Tandy 1000SL/TL - SET UP SOUND MULTIPLEXOR {#idx30992}

INT 1E - SYSTEM DATA - DISKETTE PARAMETERS {#idx39263}

INT 21 - DOS 1+ - CREATE NEW PROGRAM SEGMENT PREFIX {#idx43543}

INT 21 - DOS 1+ - GET FILE SIZE FOR FCBsee File Control Block {#idx42356}

INT 21 - DOS 1+ - WRITE CHARACTER TO STANDARD OUTPUT {#idx41571}

INT 21 - DOS 2+ - "EXEC" - LOAD AND/OR EXECUTE PROGRAM {#idx50484}{#idx50612}

INT 21 - DOS 2+ - "LSEEK" - SET CURRENT FILE POSITION {#idx45669}

INT 21 - DOS 2+ - "OPEN" - OPEN EXISTING FILE {#idx45104}{#idx45120}

INT 21 - DOS 2+ - "RENAME" - RENAME FILE {#idx52152}

INT 21 - DOS 2+ - "UNLINK" - DELETE FILE {#idx45636}

INT 21 - DOS 2+ - GET COUNTRY-SPECIFIC INFORMATION {#idx44935}{#idx44936}

INT 21 - DOS 2+ - IOCTL - READ FROM CHARACTER DEVICE CONTROL CHANNEL {#idx46031}

INT 21 - DOS 2+ - IOCTL - WRITE TO CHARACTER DEVICE CONTROL CHANNEL {#idx47762}

INT 21 - DOS 2+ internal - "SYSVARS" - GET LIST OF LISTS {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx51089}{#idx51639}{#idx51883}

INT 21 - DOS 3.0+ - "TRUENAME" - CANONICALIZE FILENAME OR PATH {#idx55138}{#idx55140}

INT 21 - DOS 4.0+ - COMMIT FILE {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx55810}

INT 21 - DOS 4.x only - internal - GET DOS SWAPPABLE DATA AREAS {obsolete, undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx53352}

INT 21 - LASTBYTE.SYS v1.19 - IOCTL - GET ??? TABLE {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx46667}

INT 21 - MS-DOS 7 (Windows95) - GET/SET INTERNATIONALIZATION INFORMATION {#idx56022}{#idx56023}

INT 21 - Novell NetWare v3+ - GET LOGICAL RECORD INFORMATION {#idx67664}

INT 21 - VIRUS - "516"/"Leapfrog" - INSTALLATION CHECK {#idx52015}

INT 21 - VIRUS - "Cascade" - INSTALLATION CHECK {#idx50880}

INT 21 - VIRUS - "USSR-707", "Justice", "Europe 92" - INSTALLATION CHECK {#idx50876}

INT 21 - Windows95 - LONG FILENAME - FIND FIRST MATCHING FILE {#idx56211}

INT 21 - Windows95 - LONG FILENAME - GET VOLUME INFORMATION {#idx56341}

INT 2D - ALTERNATE MULTIPLEX INTERRUPT SPECIFICATION (AMIS) [v3.6] {#idx73785}

INT 2D - AMIS v3.0+ - DETERMINE CHAINED INTERRUPTS {#idx74033}{#idx74037}

INT 2F - Borland C++ DPMILOAD.EXE - GET ADDRESS OF ??? BY NAME {protected mode, undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx95587}

INT 2F - Communicating Applications Spec v1.2+ - UNLOAD RESIDENT MANAGER {#idx92607}

INT 2F - DOS 3.2+ - SET DISK INTERRUPT HANDLER {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx78463}

INT 2F - DOS 3.3+ APPEND - GET APPEND PATH {#idx90196}

INT 2F - DOS 3.3+ internal - INSTALLABLE COMMAND - EXECUTE {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx89895}

INT 2F - DPMIsee DOS Protected-Mode Interface 0.9+ - GET VENDOR-SPECIFIC API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. ENTRY POINT {#idx81508}

INT 2F - DRIVER.SYS support - EXECUTE DEVICE DRIVER REQUEST {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx75493}

INT 2F - Intel Plug-and-Play - CONFIGURATION ACCESS - GET ENTRY POINT {#idx81207}

INT 2F - Intel Plug-and-Play - CONFIGURATION MANAGER - GET ENTRY POINT {#idx80704}

INT 2F - Intel SatisFAXtion CASMGR - ??? {#idx92618}{#idx92621}{#idx92624}

INT 2F - MDEBUG display driver - GET DRIVER STATUS {callout or callback} {#idx93006}

INT 2F - METZ XpressFax CASMGR - INSTALLATION CHECK {#idx92266}{#idx92274}

INT 2F - MS Windows - "VNETBIOS" VIRTUAL DEVICE API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. {callout or callback} {#idx79364}

INT 2F - MS Windows/386 - GET INSTANCE DATA {callout or callback} {#idx79185}

INT 2F - MS Windows95 - VXDLDR - GET API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. ENTRY POINT {#idx80595}

INT 2F - MS-DOS 7 kernel - GET/SET ??? HANDLER {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx79597}

INT 2F - SHARE - INSTALLATION CHECK {#idx75817}

INT 2F - SMARTDRV v4.00+ - INSTALLATION CHECK AND HIT RATIOS {#idx84345}{#idx84362}{#idx84407}

INT 2F - XVIEW - POP UP GIVING TOPIC SEARCH KEYWORD {#idx95028}

INT 31 - CauseWay - "ResMem" - RESIZE MEMORY BLOCK {protected mode} {#idx97876}

INT 31 - CauseWay - "ResMem32" - RESIZE MEMORY BLOCK (32-bit) {protected mode} {#idx97891}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - GET VENDOR SPECIFIC API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. ENTRY POINT {protected mode} {#idx97470}

INT 33 - MS MOUSE - GET VERSION STRING {#idx99323}

INT 41 - SYSTEM DATA - HARD DISK 0 PARAMETER TABLE ADDRESS [NOT A VECTOR!] {#idx99959}

INT 42 - Western Digital WD1002 SuperBIOS - INT 40 CASCADE {#idx100231}{#idx100239}

INT 44 - Acorn BBC Master 512 - "OSARGS" - GET/SET FILE PARAMS FOR OPEN FILE {#idx100423}

INT 47 - Western Digital WD1002-27X SuperBIOS - INT 40 CASCADE {#idx100555}{#idx100564}

INT 48 - KEYBOARD - CORDLESS KEYBOARD TRANSLATION (PCjr) {#idx100722}

INT 4B - Virtual DMA SpecificationA set of interrupt calls which permit the use of DMA even on systems running in protected or Virtual-86 mode with their address remapping, or systems such as Micro Channel PSIBM PS/2, any model/2s with multiple bus masters independently performing DMA operations. (VDSsee Virtual DMA Specification) - GET VERSION {#idx101512}

INT 61 - PCIBM PC/TCP(Transmission Control Protocol) A higher level (session layer) of the TCP/IP protocol suite. See also IP, TCP/IP. kernel v2.05 - "net_connect" - OPEN A NETWORK CONNECTION {#idx109431}

INT 61 - PCIBM PC/TCP(Transmission Control Protocol) A higher level (session layer) of the TCP/IP protocol suite. See also IP, TCP/IP. kernel v2.05+ - "net_read" - READ FROM THE NETWORK {#idx109681}

INT 66 - IBMSND driver, DIGPAK - PLAY 8-BIT DIGITIZED SOUND {#idx115107}

INT 66 - MicroHelp Stay-Res/Stay-Res Plus - UNINSTALL {#idx115553}

INT 67 - LIM EMSsee Expanded Memory Specification 4.0 - MOVE/EXCHANGE MEMORY REGION {#idx116505}

INT 67 - QEMM-386 v4.23+ - INSTALLATION CHECK {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx115957}{#idx115990}

INT 67 - Virtual Control Program InterfaceA simple API for protected-mode programs to allocate memory and switch into or out of protected mode. See also DOS Protected-Mode Interface. - GET PROTECTED MODE INTERFACE {#idx117033}

INT 7A - Novell NetWare - IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. Driver - INTERNAL {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx122975}

INT B3 - ZIPKEY - CONVERT STATE CODE TO TWO-LETTER ABBREVIATION {#idx127931}

INT B3 - ZIPKEY - CONVERT TWO-LETTER ABBREVIATION TO STATE CODE {#idx127922}

INT B3 - ZIPKEY - FETCH AN ENTRY FROM A PREVIOUS LOOKUP {#idx127982}

INT E0 - DR Multiuser DOS - "A_ATTACH" - ATTACH AUX DEVICE {#idx131099}

INT E0 - REAL/32 - "N_RCT" - GET REQUESTOR CONFIGURATION TABLE {#idx130241}{#idx130243}

Interrupt Primer {#idx176857}

MEM 0040h:0067h - PCIBM PC only - CASSETTE TIME COUNT {#idx161492}

MEM 0040h:0069h - CASSETTE (PCIBM PC only) - CASSETTE CRC REGISTER {#idx161506}{#idx161513}{#idx161517}

MEM 0040h:006Bh - CASSETTE (PCIBM PC only) - LAST VALUE READ FROM CASSETTE {#idx161531}{#idx161537}{#idx161541}

MEM xxxxh:xxx0h - Advanced Configuration and Power Interface Spec (ACPI) v0.9+ {#idx164140}{#idx164142}

Opcodes List {#idx172957}{#idx172958}{#idx172960}{#idx172961}{#idx173264}{#idx173329}{#idx173354}{#idx173587}{#idx173898}{#idx173919}{#idx175396}{#idx175852}

PORTIBM PC Portable (uses same BIOS as XT) 0000-001F - DMAsee Direct Memory Access 1 - FIRST DIRECT MEMORY ACCESS CONTROLLER (8237) {#idx132972}{#idx133003}

PORTIBM PC Portable (uses same BIOS as XT) 0020-003F - PIC 1 - PROGRAMMABLE INTERRUPT CONTROLLER (8259A) {#idx133103}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0023 - Intel 82358DT 'Mongoose' EISA(Enhanced Industry-Standard Architecture) A 32-bit superset of the IBMInternational Busiuness Machines ATIBM PC AT's expansion bus (which is now known as the ISA or Industry-Standard Architecture bus). CHIPSET - 82359 DRAM(Dynamic Random Access Memory) RAM memory which essentially consists of a tiny capacitor for each bit of memory. Since capacitors do not hold a charge indefinitely, DRAM must be constantly refreshed to avoid losing its contents. Also, the process of reading the contents of the memory are destructive, meaning extra time must be spent restoring the contents of memory addresses which are accessed, so DRAM is slower than SRAM. See also Refresh, SRAM. CONTROLLER {#idx133566}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0024 - CHIPSET FROM PICO POWER, UMC or PCChips {#idx136573}

PORTIBM PC Portable (uses same BIOS as XT) 0024-0027 - PicoPower Vesuvius - V1-LS {#idx138170}{#idx138177}{#idx138179}

PORTIBM PC Portable (uses same BIOS as XT) 0040-005F - PIT - PROGRAMMABLE INTERVAL TIMER (8253, 8254) {#idx139026}

PORTIBM PC Portable (uses same BIOS as XT) 0060-006F - KEYBOARD CONTROLLER 804x (8041, 8042) (or PPI (8255) on PCIBM PC,XTIBM PC XT) {#idx139525}{#idx139543}

PORTIBM PC Portable (uses same BIOS as XT) 007C-007D - HP-Vectra - PIC 3 - PROGRAMMABLE INTERRUPT CONTROLLER (8259) {#idx140406}

PORTIBM PC Portable (uses same BIOS as XT) 00A0-00AF - PIC 2 - PROGRAMMABLE INTERRUPT CONTROLLER (8259A) {#idx141231}

PORTIBM PC Portable (uses same BIOS as XT) 00A8-00A9 - Via VT82C496G "Pluto" - CONFIGURATION REGISTERS {#idx141426}

PORTIBM PC Portable (uses same BIOS as XT) 00C0-00DF - DMAsee Direct Memory Access 2 - SECOND DIRECT MEMORY ACCESS CONTROLLER (8237) {#idx141948}{#idx141980}

PORTIBM PC Portable (uses same BIOS as XT) 0330-0333 - Adaptec 154xB/154xC SCSI(Small Computer Systems Interface) A system-independent expansion bus typically used to connect hard disks, tape drives, and CD-ROMs to a computer. A host adapter connects the SCSI bus to the computer's own bus. See also ESDI, IDE. adapter (default address) {#idx145590}{#idx145923}{#idx145925}{#idx146097}

PORTIBM PC Portable (uses same BIOS as XT) 03C4-03C5 - EGAEnhanced Graphics Adapter(Enhanced Graphics Adapter) IBMInternational Busiuness Machines's second color video board for the IBMInternational Busiuness Machines PCIBM PC family, capable of a maximum resolution of 640x350 pixels in 16 simultaneous colors of a total of 64 possible colors./VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. - SEQUENCER REGISTERS {#idx148311}

PORTIBM PC Portable (uses same BIOS as XT) 03D4-03D5 - COLOR VIDEO - CRT CONTROL REGISTERS {#idx149634}

Ralf Brown Programs {#idx176998}