RBIL61 - Interrupt

86 Bugs List {#idx175880}{#idx175951}{#idx175964}{#idx175966}{#idx175967}{#idx176122}{#idx176124}{#idx176127}{#idx176151}{#idx176165}{#idx176168}{#idx176176}{#idx176180}{#idx176196}{#idx176266}{#idx176301}{#idx176313}{#idx176343}{#idx176541}{#idx176570}{#idx176613}{#idx176626}{#idx176667}{#idx176709}{#idx176718}

Advertisements {#idx177093}{#idx177098}{#idx177100}{#idx177113}{#idx177114}{#idx177121}{#idx177123}{#idx177135}{#idx177144}

Bibliography {#idx166734}{#idx167019}

CALL C000h:006Ch - ATI Mach32 VIDEO 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. - {#idx159066}

CALL xxxxh:xxxxh - Alternate Multiplex Interrupt Specification TSRs {#idx159193}

CALL xxxxh:xxxxh - Interrupt Sharing Protocol {#idx159415}

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 {#idx159724}{#idx160297}{#idx160321}{#idx160328}{#idx160331}{#idx160416}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 0Ah - RTCsee Real-Time Clock - STATUS REGISTER A (read/write) (usu 26h) {#idx168014}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 0Bh - RTCsee Real-Time Clock - STATUS REGISTER B (read/write) {#idx168038}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 0Ch - RTCsee Real-Time Clock - STATUS REGISTER C (Read only) {#idx168062}{#idx168065}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 51h - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. - MEMORY ACCESS CONTROL {#idx169514}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 53h - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. - MEMORY ACCESS CONTROL {#idx169533}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 55h - AWARD - PCI Bus Setup {#idx169563}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 57h - AWARD - PCI Bus Setup {#idx169588}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 5Ah - AWARD - PCI Bus IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. Setup 1 {#idx169619}{#idx169622}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 5Bh - AWARD - PCI Bus IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. Setup 2 {#idx169627}{#idx169630}

Contact Information {#idx9}{#idx10}

Copyright {#idx1}{#idx5}{#idx7}

Frequently Asked Questions {#idx177078}{#idx177081}{#idx177082}

I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 00h/x1h - General Call - Hardware Generated (Interrupt) {#idx170023}

I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 86h/D8h - ITT VPX 32xx - VREF/HREF Control {#idx170896}{#idx170900}

INT 00 - CPU-generated - DIVIDE ERROR {callout or callback} {#idx25}

INT 01 - CPU-generated - SINGLE STEP {callout or callback} {#idx45}{#idx64}

INT 02 - external hardware - NON-MASKABLE INTERRUPT {callout or callback} {#idx69}{#idx73}{#idx77}{#idx83}{#idx94}{#idx104}{#idx147}{#idx156}

INT 03 - Columbia PCs (desktop,VP portables) - ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. DEBUGGER {#idx212}

INT 03 - Soft-ICE - BACK DOOR COMMANDS - GET BREAKPOINT INFORMATION {#idx326}

INT 03 - Soft-ICE v2.5x - BACK DOOR COMMANDS - SET Soft-ICE BREAKPOINT {#idx346}{#idx350}{#idx354}{#idx361}

INT 04 - CPU-generated - INTO DETECTED OVERFLOW {callout or callback} {#idx444}

INT 05 - CPU-generated (80186+) - BOUND RANGE EXCEEDED {callout or callback} {#idx477}

INT 05 - PRINT SCREEN {#idx463}

INT 06 - CPU-generated (80186+) - INVALID OPCODE {callout or callback} {#idx525}{#idx535}

INT 06 - HP 95LX - SLEEP/WAKEUP {callout or callback} {#idx548}

INT 07 - CPU-generated (80286+) - PROCESSOR EXTENSION NOT AVAILABLE {callout or callback} {#idx571}

INT 08 - CPU-generated (80286+) - DOUBLE EXCEPTION DETECTED {callout or callback} {#idx616}

INT 08 - IRQ0 - SYSTEM TIMER {callout or callback} {#idx580}

INT 09 - IRQ1 - KEYBOARD DATA READY {callout or callback} {#idx640}{#idx658}{#idx683}{#idx688}

INT 0A - IRQ2 - LPT2 (PCIBM PC), VERTICAL RETRACE INTERRUPT (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.) {callout or callback} {#idx807}{#idx813}{#idx820}{#idx830}{#idx834}{#idx853}{#idx862}

INT 0B - IRQ3 - SERIAL COMMUNICATIONS (COM2) {callout or callback} {#idx907}{#idx917}{#idx924}{#idx929}

INT 0C - CPU-generated (80286+) - STACK FAULT {callout or callback} {#idx994}

INT 0C - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. SYSTEM 36/38 WORKSTATION EMULATION - 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. POINTER {#idx1029}

INT 0C - IRQ4 - SERIAL COMMUNICATIONS (COM1) {callout or callback} {#idx968}{#idx976}{#idx981}

INT 0D - CPU-generated (80286+) - GENERAL PROTECTION VIOLATION {callout or callback} {#idx1110}

INT 0D - HP 95LX - INFRARED INTERRUPT {#idx1098}{#idx1099}

INT 0D - IRQ5 - FIXED DISK (PCIBM PC,XTIBM PC XT), LPT2 (ATIBM PC AT), reserved (PS/2IBM PS/2, any model) {callout or callback} {#idx1063}{#idx1073}

INT 0E - CPU-generated (80386+ native mode) - PAGE FAULT {callout or callback} {#idx1163}{#idx1167}

INT 0E - HP 95LX - EXTERNAL CARD INTERRUPT {callout or callback} {#idx1178}

INT 0E - IRQ6 - DISKETTE CONTROLLER {callout or callback} {#idx1139}{#idx1150}

INT 0F - IRQ7 - PARALLEL PRINTER {callout or callback} {#idx1189}

INT 10 - 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. Window Extension v1.1 - GET BLANKING ATTRIBUTE {#idx2899}

INT 10 - 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. Window Extension v1.1 - GET WINDOW COORDINATES {#idx2583}

INT 10 - 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. Window Extension v1.1 - SET WINDOW COORDINATES {#idx2322}

INT 10 - CPU-generated (80286+) - COPROCESSOR ERROR {callout or callback} {#idx1217}

INT 10 - Tandy 2000 - VIDEO - SET PALETTE ENTRY {#idx2183}

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. - GET VBE(VESA BIOS Extensions) The common software interface for video cards providing support for high resolution and bit depth./AF v1.0P DEVICE CONTEXT BUFFER {#idx4628}

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. VBE(VESA BIOS Extensions) The common software interface for video cards providing support for high resolution and bit depth./AI (Audio Interface) - QUERY DEVICE {#idx4800}

INT 12 - CPU-generated (Pentium +) - MACHINE CHECK EXCEPTION {#idx7766}

INT 13 - DISK - GET DRIVE PARAMETERS (PCIBM PC,XT286IBM PC XT/286,CONVIBM Convertible,PSIBM PS/2, any model,ESDI(Enhanced Small Device Interface) A disk drive interface type which was briefly popular before IDE took over. An ESDI drive can transfer data between the drive and controller at 10, 15, or 20 megabits per second, which is faster than an MFM or RLL controller but slower than what is possible with an IDE or SCSI drive. See also IDE.,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.) {#idx8635}

INT 13 - DISK - READ SECTOR(S) INTO MEMORY {#idx8073}{#idx8081}

INT 13 - ESDI(Enhanced Small Device Interface) A disk drive interface type which was briefly popular before IDE took over. An ESDI drive can transfer data between the drive and controller at 10, 15, or 20 megabits per second, which is faster than an MFM or RLL controller but slower than what is possible with an IDE or SCSI drive. See also IDE. FIXED DISK - FORMAT UNIT (PSIBM PS/2, any model) {#idx9367}{#idx9369}

INT 13 - FAST! v4.02+ - 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. {#idx11026}

INT 13 - FAST! v4.02+ - UNHOOK INTERRUPTS {#idx11103}

INT 13 - HARD DISK - PSIBM PS/2, any model/1 and newer PS/2IBM PS/2, any model - IDENTIFY DRIVE {#idx10069}

INT 13 - HARD DISK - PSIBM PS/2, any model/1 and newer PS/2IBM PS/2, any model - READ MULTIPLE DISK SECTORS {#idx9768}

INT 13 - HARD DISK - PSIBM PS/2, any model/1 and newer PS/2IBM PS/2, any model - SET MULTIPLE MODE {#idx9981}

INT 13 - HARD DISK - PSIBM PS/2, any model/1 and newer PS/2IBM PS/2, any model - WRITE MULTIPLE DISK SECTORS {#idx9853}

INT 13 - HARD DISK - READ LONG SECTOR(S) (ATIBM PC AT and later) {#idx8741}

INT 13 - QUICKCACHE II v4.20 - UNINSTALL {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.} {#idx10112}

INT 13 - XBIOS - COMMAND {#idx11460}

INT 13 - XDF.COM - 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. {#idx9303}

INT 14 - ARTICOM - INSTALLATION CHECK {#idx14069}

INT 14 - COMM-DRV v14.0 - SET USER INTERRUPT ROUTINE {#idx14651}{#idx14653}

INT 14 - COURIERS.COM - CONFIGURE PORTIBM PC Portable (uses same BIOS as XT) {#idx14512}

INT 14 - Digiboard - CCB COMMAND - SET INTERRUPT TO HOST MASK {#idx13094}

INT 14 - Digiboard - CCB COMMAND - SPECIAL CHARACTER INTERRUPT {#idx13183}

INT 14 - FOSSIL(Fido/Opus/Seadog Standard Interface Layer) A standardized API for performing serial I/O, originally used by the Fido and Opus bulletin- board software and Seadog bulletin-board mailer, but now in wider use. - INSERT/DELETE FUNCTION FROM TIMER TICK CHAIN {#idx13072}{#idx13085}

INT 14 - FOSSIL(Fido/Opus/Seadog Standard Interface Layer) A standardized API for performing serial I/O, originally used by the Fido and Opus bulletin- board software and Seadog bulletin-board mailer, but now in wider use. - RETURN TIMER TICK PARAMETERS {#idx12385}

INT 14 - FOSSIL(Fido/Opus/Seadog Standard Interface Layer) A standardized API for performing serial I/O, originally used by the Fido and Opus bulletin- board software and Seadog bulletin-board mailer, but now in wider use. - TRANSMIT NO WAIT {#idx12630}

INT 14 - FOSSIL(Fido/Opus/Seadog Standard Interface Layer) A standardized API for performing serial I/O, originally used by the Fido and Opus bulletin- board software and Seadog bulletin-board mailer, but now in wider use. - WRITE BLOCK {#idx13253}{#idx13257}

INT 14 - SERIAL - EXTENDED INITIALIZE (CONVERTIBLE,PSIBM PS/2, any model) {#idx11903}{#idx11923}

INT 14 - SERIAL - INITIALIZE PORTIBM PC Portable (uses same BIOS as XT) {#idx11647}{#idx11695}

INT 14 - SERIAL - READ CHARACTER FROM PORTIBM PC Portable (uses same BIOS as XT) {#idx11792}

INT 14 - SERIAL - WRITE CHARACTER TO PORTIBM PC Portable (uses same BIOS as XT) {#idx11759}

INT 14 - X00 FOSSIL(Fido/Opus/Seadog Standard Interface Layer) A standardized API for performing serial I/O, originally used by the Fido and Opus bulletin- board software and Seadog bulletin-board mailer, but now in wider use. - EXTENDED SERIAL PORTIBM PC Portable (uses same BIOS as XT) STATUS/CONTROL {#idx13383}{#idx13390}

INT 15 - Advanced Power Management v1.0+ - CONNECT 16-BIT PROTMODE INTERFACE {real mode} {#idx19275}

INT 15 - Advanced Power Management v1.0+ - CONNECT 32-BIT PROTMODE INTERFACE {#idx19303}

INT 15 - Advanced Power Management v1.0+ - CPU(Central Processing Unit) The microprocessor which executes programs on your computer. BUSY {#idx19345}{#idx19349}

INT 15 - Advanced Power Management v1.0+ - CPU(Central Processing Unit) The microprocessor which executes programs on your computer. IDLE {#idx19326}{#idx19333}{#idx19334}

INT 15 - Advanced Power Management v1.0+ - ENABLE/DISABLE POWER MANAGEMENT {#idx19461}

INT 15 - Advanced Power Management v1.0+ - GET POWER MANAGEMENT EVENT {#idx19527}

INT 15 - Advanced Power Management v1.0+ - GET POWER STATUS {#idx19494}

INT 15 - Advanced Power Management v1.0+ - RESTORE POWER-ON DEFAULTS {#idx19474}

INT 15 - Advanced Power Management v1.0+ - SET POWER STATE {#idx19361}

INT 15 - Advanced Power Management v1.0+ - SUSPEND SYSTEM {#idx19425}

INT 15 - Advanced Power Management v1.0+ - SYSTEM STAND-BY {#idx19410}

INT 15 - Amstrad PC1512 - WRITE DATA TO NON-VOLATILE RAM(Random Access Memory) See also DRAM, SRAM. {#idx15488}{#idx15497}

INT 15 - 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. - SET EVENT WAIT INTERVAL (ATIBM PC AT,PS50+IBM PS/2 Models 50,60,70,80) {#idx20668}

INT 15 - 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. - WAIT (ATIBM PC AT,PSIBM PS/2, any model) {#idx20846}

INT 15 - DESQview - "APPNUM" - GET CURRENT PROGRAM'S NUMBER {#idx23901}

INT 15 - DESQview v2.00+ - "DBGPOKE" - DISPLAY CHARACTER ON STATUS LINE {#idx23924}

INT 15 - DESQview v2.00+ - "NEWPROC" - START NEW APPLICATION IN NEW PROCESS {#idx16608}{#idx16617}

INT 15 - DESQview v2.20+ - "ASSERTMAP" - GET/SET MAPPING CONTEXT {#idx16757}

INT 15 - DESQview v2.20+ - "GETCRIT" - GET CRITICAL NESTING COUNT {#idx24030}

INT 15 - DESQview v2.20-2.25 - reserved {#idx24088}

INT 15 - DESQview v2.23+ - "DOSUSER" - GET HANDLE OF TASK CURRENTLY USING DOS {#idx24171}

INT 15 - DESQview v2.23+ - "ENTERC" - INCREMENT CRITICAL NESTING COUNT {#idx24137}

INT 15 - DESQview v2.23+ - "GETCOMMON" - ALLOCATE "COMMON" MEMORY {#idx24112}

INT 15 - DESQview v2.23+ - "PUTCOMMON" - DEALLOCATE "COMMON" MEMORY {#idx24122}

INT 15 - DESQview v2.23+ - "SCRNINFO" - GET TRUE VIDEO PARAMETERS {#idx24160}

INT 15 - DESQview v2.26+ - "ASSERTVIR" - CONTROL 386 SCREEN VIRTUALIZATION {#idx24200}

INT 15 - DESQview v2.26+ - "DISPATCHINT" - INTERRUPT ANOTHER TASK {#idx24177}{#idx24180}{#idx24188}

INT 15 - DESQview v2.50+ - "DISPATCHINTAFTERDOS" - INTERRUPT ANOTHER TASK {#idx24357}{#idx24364}

INT 15 - DESQview v2.50+ - "WININFO" - GET WINDOW INFORMATION {#idx24413}

INT 15 - DESQview/X 1.02+ - DVDOS4GX.DVR - GET ??? {#idx21437}

INT 15 - HUNTER 16 - ENABLE/TRAP EVENT {#idx20407}

INT 15 - HUNTER 16 - SET POWER MENU (APM) {#idx20831}

INT 15 - later PSIBM PS/2, any model/2s - RETURN DEVICE DESCRIPTOR TABLE (DDT) ENTRY BY NUMBER {#idx23289}{#idx23290}

INT 15 - MultiDOS Plus - RELEASE RESOURCE SEMAPHORE {#idx15627}

INT 15 - MultiDOS Plus - TRIGGER EVENT {#idx18345}

INT 15 - OS HOOK - ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. 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. TRACING CALLOUT (PS30IBM PS/2 Model 30 and below/286,PS50Z,PS95) {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., callout or callback} {#idx22878}{#idx22889}{#idx22898}

INT 15 - SYSTEM - BUILD ABIOS(Advanced BIOS) The IBMInternational Busiuness Machines XTIBM PC XT/286 and PS/2IBM PS/2, any model models with 80286 or higher processors contain two separate BIOSes. The ABIOS is a protected-mode BIOS which is used by OS/2. For machines without an ABIOS, such as the IBMInternational Busiuness Machines ATIBM PC AT, OS/2 loads the equivalent of the ABIOS from disk. see also CBIOS SYSTEM PARAMETER TABLE (PSIBM PS/2, any model) {#idx15682}

INT 15 - SYSTEM - COPY EXTENDED MEMORY {#idx20875}{#idx20880}{#idx20903}

INT 15 - SYSTEM - FORMAT UNIT PERIODIC INTERRUPT (PSIBM PS/2, any model ESDI(Enhanced Small Device Interface) A disk drive interface type which was briefly popular before IDE took over. An ESDI drive can transfer data between the drive and controller at 10, 15, or 20 megabits per second, which is faster than an MFM or RLL controller but slower than what is possible with an IDE or SCSI drive. See also IDE. drives only) {callout or callback} {#idx15989}

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) {#idx21705}

INT 15 - SYSTEM - later PSIBM PS/2, any model/2s - EXPANSION UNIT, RETURN CONFIGURATION NUMBER {#idx19179}

INT 15 - SYSTEM - SWITCH TO PROTECTED MODE {#idx20989}{#idx20991}{#idx20993}{#idx20995}{#idx21001}{#idx21020}

INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - "ENDC" - END CRITICAL REGION {#idx16451}

INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - "FREEBIT" - UNDEFINE A 2ND-LEVEL INTERRUPT HANDLER {#idx16123}

INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - "GETBIT" - DEFINE A 2ND-LEVEL INTERRUPT HANDLER {#idx16105}{#idx16113}

INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - "ISOBJ" - VERIFY OBJECT HANDLE {#idx16303}{#idx16326}{#idx16341}{#idx16345}

INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - "PGMINT" - INTERRUPT ANOTHER TASK {#idx16504}{#idx16507}{#idx16511}

INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - "SETBIT" - SCHEDULE ONE OR MORE 2ND-LEVEL INTERRUPTS {#idx16132}{#idx16136}{#idx16139}{#idx16146}

INT 15 - VMiX - "sys_getcolors" - GET CONSOLE WINDOW COLORS {#idx18239}

INT 15 - VMiX - "sys_sysreq" - SYSTEM CONFIGURATION MANAGER {#idx15881}{#idx15884}{#idx15895}{#idx15897}

INT 15 - VMiX v2+ - "sys_sint" - INVOKE SOFTWARE INTERRUPT {#idx18272}{#idx18274}

INT 16 - HP Vectra ES/QS/RS EX-BIOS - GET 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 {#idx26284}{#idx26285}

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 {#idx26296}{#idx26297}{#idx26301}

INT 16 - Microsoft QBASIC internal - MICROSOFT COOPERATION WITH TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user. The name comes from the name of the DOS function call used to remain in memory after termination. {callout or callback, 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.} {#idx25864}

INT 16 - Netroom POSTNET - GET OLD INTERRUPT VECTORS {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.} {#idx25938}{#idx25944}

INT 16 - Netroom PRENET - GET OLD INTERRUPT VECTORS {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.} {#idx25923}{#idx25928}

INT 16 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - QUERY ZOOM INTERRUPT {#idx27342}{#idx27346}{#idx27348}

INT 16 - PCIBM PC Tools v5.1-8.0 DESKTOP - CHECK FOR AND GET KEYSTROKE {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.} {#idx28279}

INT 16 - PCIBM PC Tools v5.1-8.0 DESKTOP - PREPARE TO UNLOAD RESIDENT DESKTOP {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.} {#idx28395}

INT 16 - PCIBM PC Tools v5.1-8.0 DESKTOP - UNHOOK {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.} {#idx28101}

INT 16 - PCIBM PC Tools v7+ CPSCHED - UNHOOK INTERRUPTS {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.} {#idx27301}

INT 16 - Tandy 2000 - KEYBOARD - FLUSH KEYBOARD BUFFER {#idx25218}

INT 16 - Tandy 2000 - KEYBOARD - RESET KEYBOARD {#idx25292}

INT 16 - TEXTCAP 2.0 - UNINSTALL {#idx25628}

INT 17 - Emulaser ELTSR - INSTALL INTERRUPT HANDLERS {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.} {#idx28752}

INT 17 - Emulaser ELTSR - UNHOOK INTERRUPTS {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.} {#idx28816}{#idx28820}

INT 17 - Enhanced Parallel Port (EPP) 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. - INSTALLATION CHECK {#idx28627}{#idx28663}{#idx28669}{#idx28682}{#idx28700}{#idx28744}

INT 17 - NorthNet Jetstream 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. - SET COMPLETION (POSTsee Power-On Self-Test) ADDRESS {#idx29837}

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.) {#idx29876}{#idx29904}

INT 19 - SYSTEM - BOOTSTRAP LOADER {#idx30108}{#idx30139}

INT 1A - DATEFIX - 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.} {#idx38968}

INT 1A - Intel Plug-and-Play AUTO-CONFIGURATION - GET PCI IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. ROUTING TABLE {#idx38920}{#idx38927}

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+ - FIND PCI CLASS CODE {#idx32813}

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+ - FIND PCI DEVICE {#idx32242}

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+ - INSTALLATION CHECK {#idx32218}

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+ - PCI BUS-SPECIFIC OPERATIONS {#idx32824}

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 BYTE {#idx32835}

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. {#idx32861}{#idx32886}{#idx32900}{#idx32918}{#idx32919}{#idx33066}{#idx33080}{#idx33083}{#idx33093}{#idx33101}{#idx33108}{#idx33124}{#idx33129}{#idx33139}{#idx33140}{#idx33170}{#idx33173}{#idx33175}{#idx33192}{#idx33217}{#idx33227}

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. (Adaptec devices) {#idx38580}

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. (AMD devices) {#idx33431}

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. (DEC device) {#idx33392}

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) {#idx35359}{#idx35723}{#idx35893}{#idx35944}{#idx37780}{#idx37795}{#idx37850}{#idx38198}{#idx38202}{#idx38245}{#idx38383}

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. (National Semicond. device) {#idx33340}

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. (OPTi devices) {#idx33497}{#idx33674}{#idx33687}{#idx33689}{#idx33693}{#idx33696}{#idx33703}{#idx33729}{#idx33738}{#idx33857}{#idx33876}{#idx33904}{#idx33925}{#idx33927}{#idx33930}{#idx33932}{#idx33934}{#idx33937}{#idx33943}{#idx33946}{#idx33954}{#idx33983}{#idx34138}{#idx34148}{#idx34181}

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. (PCIBM PC Technology devices) {#idx33469}

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. (PicoPower devices) {#idx34223}{#idx34417}

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. (VIA Technologies devices) {#idx34458}{#idx34854}{#idx34969}{#idx34985}{#idx35023}{#idx35179}{#idx35188}{#idx35192}{#idx35295}{#idx35297}{#idx35328}{#idx35331}

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. (VLSI devices) {#idx33314}

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 WORD {#idx32848}

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+ - WRITE CONFIGURATION BYTE {#idx38607}

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+ - WRITE CONFIGURATION DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. {#idx38633}

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+ - WRITE CONFIGURATION WORD {#idx38620}

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. v2.1+ - SET PCI IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. {#idx38651}{#idx38658}

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. v2.1+ - SET PCI IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. (32-bit) {#idx38728}{#idx38735}

INT 1A - PCMCIA Socket Services v1.00 - GET ADAPTER {#idx31286}

INT 1A - PCMCIA Socket Services v1.00 - GET SOCKET {#idx31465}{#idx31481}

INT 1A - PCMCIA Socket Services v1.00 - INQUIRE ADAPTER {#idx31237}{#idx31247}{#idx31251}

INT 1A - PCMCIA Socket Services v1.00 - REGISTER STATUS CHANGE CALLBACK {#idx31049}{#idx31058}{#idx31065}{#idx31070}

INT 1A - PCMCIA Socket Services v1.00 - SET SOCKET {#idx31493}

INT 1A - PCMCIA Socket Services v2.1 - ACKNOWLEDGE INTERRUPT {#idx31696}

INT 1A - PCMCIA v2 Card Services - 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. {#idx32067}{#idx32072}

INT 1A - WORD PERFECT v5.0 Third Party Interface - INSTALLATION CHECK {#idx30816}

INT 1B - KEYBOARD - CONTROL-BREAK HANDLER {callout or callback} {#idx39207}

INT 1C - TIME - SYSTEM TIMER TICK {#idx39218}

INT 20 - Microsoft Windows - Int13 - VxDA virtual device driver for Windows 3.x or 95. So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. SERVICES {protected mode} {#idx40266}{#idx40267}{#idx40269}

INT 20 - Microsoft Windows - VMM - VxDA virtual device driver for Windows 3.x or 95. So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. SERVICES {protected mode} {#idx39558}{#idx39560}{#idx39561}{#idx39576}{#idx39577}{#idx39578}{#idx39591}{#idx39598}{#idx39641}{#idx39694}

INT 20 - Microsoft Windows - VPICD - VxDA virtual device driver for Windows 3.x or 95. So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. SERVICES {protected mode} {#idx39775}{#idx39789}{#idx39790}

INT 20 - Microsoft Windows - VTD - VxDA virtual device driver for Windows 3.x or 95. So called because nearly all of the Windows 3.0 drivers had names of the form "VdeviceD". See also device driver. SERVICES {protected mode} {#idx39865}

INT 21 - 10NET v5.0 - GET LOCAL 10NET CONFIGURATION TABLE {#idx53564}{#idx53612}

INT 21 - CD-ROM device driver - IOCTL INPUT {#idx46563}{#idx46569}{#idx46633}{#idx46639}{#idx46644}{#idx47548}{#idx47637}

INT 21 - CUBIT v4.00 - GET CUBIT INT 21 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.} {#idx55788}

INT 21 - DOS 1+ - CREATE NEW PROGRAM SEGMENT PREFIX {#idx43429}

INT 21 - DOS 1+ - SET INTERRUPT VECTOR {#idx42371}{#idx42375}

INT 21 - DOS 2+ - "EXEC" - LOAD AND/OR EXECUTE PROGRAM {#idx50599}

INT 21 - DOS 2+ - GET INTERRUPT VECTOR {#idx44630}{#idx44636}

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.} {#idx51334}{#idx51347}{#idx51673}

INT 21 - DOS 3.0+ - GET EXTENDED ERROR INFORMATION {#idx52581}{#idx52601}

INT 21 - DOS 3.4/4.0 - GET CURRENT CPSW STATE {#idx44440}

INT 21 - DOS 3.4/4.0 - SET CPSW STATE {#idx44459}

INT 21 - DOS 3.x+ internal - GET AND SET EXTENDED CONTROL-BREAK CHECKING STATE {#idx44417}

INT 21 - DOS 4.0+ - GET BOOT DRIVE {#idx44476}

INT 21 - DOS 5+ - SET EXECUTION STATE {#idx50643}

INT 21 - DOS v2.11-2.13 - SET OEM(Original Equipment Manufacturer) a company which purchases components that are resold as part of its own products under the company's own brand name, e.g. a Gateway 2000-branded monitor may actually be a Mag or NEC monitor. INT 21 HANDLER {#idx71052}

INT 21 - DR DOS 5.0+ internal - GET POINTER TO INTERNAL VARIABLE 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.} {#idx50152}

INT 21 - European MS-DOS 4.0 - "AEXEC" - EXECUTE PROGRAM IN BACKGROUND {#idx56763}

INT 21 - European MS-DOS 4.0 - "CWAIT" - WAIT FOR CHILD TO TERMINATE {#idx57001}

INT 21 - European MS-DOS 4.0 - "PBLOCK" - BLOCK A PROCESS {partially documented} {#idx57253}

INT 21 - European MS-DOS 4.0 - SET SIGNAL HANDLER {#idx57033}{#idx57046}

INT 21 - European MS-DOS 4.0 - SLEEP {#idx56966}{#idx56970}

INT 21 - Gravis UltraSound - MegaEm/MEGA_EM - INSTALLATION CHECK {#idx71243}{#idx71246}

INT 21 - IFSHLP.SYS - GET ENTRY POINT {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.} {#idx45456}{#idx45457}

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.} {#idx46742}{#idx46898}{#idx46910}

INT 21 - Network Driver Interface Specification (NDIS(Network Driver Interface Specification) A hardware-independent network interface developed by Microsoft and 3com. See also Packet Driver, TCP/IP.) 2.0.1 - PROTOCOL MANAGER {#idx46096}{#idx46153}

INT 21 - Novell DOS 7 - SDRes v27.03 - 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.} {#idx41765}

INT 21 - Novell NetWare - FILE SERVER - GET DISK CHANNEL STATISTICS {#idx62032}

INT 21 - Novell NetWare - GET DISK CHANNEL STATISTICS {#idx67132}

INT 21 - Novell NetWare - MESSAGE SERVICES - SET BROADCAST MODE {#idx58615}{#idx58624}

INT 21 - Novell NetWare - PRINT SERVICES - GET DEFAULT CAPTURE FLAGS {#idx57616}

INT 21 - Novell NetWare v4+ - GET LAN CONFIGURATION {#idx70770}

INT 21 - OS/286, OS/386 - ISSUE REAL INTERRUPT {#idx59786}{#idx59790}

INT 21 - PCIBM PC Tools 9 CPRLOW.EXE - GET CODE AND DATA ADDRESSES {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.} {#idx47181}{#idx47186}

INT 21 - PCIBM PC/TCP(Transmission Control Protocol) A higher level (session layer) of the TCP/IP protocol suite. See also IP, TCP/IP. IPCUST.SYS - READ CONFIGURATION DATA {#idx45356}{#idx45373}

INT 21 - pcANYWHERE IV/LAN - INSTALLATION CHECK {#idx43915}

INT 21 - Phar Lap 386/DOS-Ext VMM v3.0 - READ PROTMODE REGS AFTER SFTWARE INT {protected mode} {#idx43272}

INT 21 - Phar Lap 386/DOS-Extender - GET CONFIGURATION INFORMATION {protected mode} {#idx42880}{#idx42881}{#idx42882}{#idx42885}{#idx42889}{#idx42900}{#idx42902}

INT 21 - Phar Lap 386/DOS-Extender - GET HARDWARE INTERRUPT VECTORS {protected mode} {#idx42534}{#idx42537}

INT 21 - Phar Lap 386/DOS-Extender - GET PROTECTED-MODE INTERRUPT VECTOR {protected mode} {#idx42419}{#idx42425}

INT 21 - Phar Lap 386/DOS-Extender - GET REAL-MODE INTERRUPT VECTOR {protected mode} {#idx42431}{#idx42434}{#idx42437}

INT 21 - Phar Lap 386/DOS-Extender - ISSUE REAL-MODE INTERRUPT {protected mode} {#idx42602}{#idx42607}{#idx42612}{#idx42613}

INT 21 - Phar Lap 386/DOS-Extender - SET INT TO ALWAYS GAIN CNTRL IN PR. MODE {protected mode} {#idx42468}{#idx42473}

INT 21 - Phar Lap 386/DOS-Extender - SET PROTECTED-MODE INTERRUPT VECTOR {protected mode} {#idx42441}{#idx42448}

INT 21 - Phar Lap 386/DOS-Extender - SET REAL- & PROTECTED-MODE INT VECTORS {protected mode} {#idx42482}{#idx42488}

INT 21 - Phar Lap 386/DOS-Extender - SET REAL-MODE INTERRUPT VECTOR {protected mode} {#idx42453}{#idx42456}{#idx42460}

INT 21 - Phar Lap 386/DOS-Extender v3.0+ - GET INTERRUPT FLAG {protected mode} {#idx43200}{#idx43204}

INT 21 - Phar Lap 386/DOS-Extender v4.0+ - READ/WRITE IDTsee Interrupt Descriptor Table DESCRIPTOR {protected mode} {#idx43321}{#idx43329}

INT 21 - Phar Lap 386/DOS-Extender VMM - EN/DISABLE STATE SAVE ON INTERRUPTS {protected mode} {#idx42926}

INT 21 - Phar Lap 386/DOS-Extender VMM - READ REGISTERS AFTER CTRL-C INT {protected mode} {#idx42945}

INT 21 - Quarterdeck - HOOKROM.SYS - GET HOOKED VECTOR 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.} {#idx46472}{#idx46473}

INT 21 - Software Carousel - SET TASK SWITCH CALLBACK {#idx58837}{#idx58841}

INT 21 - TAME v2.10+ - INSTALLATION CHECK {#idx43760}{#idx43761}{#idx43772}{#idx43815}{#idx43816}{#idx43849}{#idx43850}

INT 21 - Turbo Debug HARDWARE BREAKPOINTS - SEND CMD TO HARDWARE BRKPNT DRIVER {#idx45535}

INT 22 - DOS 1+ - PROGRAM TERMINATION ADDRESS {#idx72011}

INT 23 - DOS 1+ - CONTROL-C/CONTROL-BREAK HANDLER {#idx72050}

INT 24 - DOS 1+ - CRITICAL ERROR HANDLER {callout or callback} {#idx72079}{#idx72165}

INT 25 - DOS 1+ - ABSOLUTE DISK READ (except partitions > 32M) {#idx72228}

INT 25 - Stacker - GET DEVICE DRIVER ADDRESS {#idx72336}

INT 28 - DOS 2+ - DOS IDLE INTERRUPT {callout or callback} {#idx72526}{#idx72527}{#idx72544}

INT 28 - PCXDUMP v9.00+ - INSTALLATION CHECK {partially documented} {#idx72560}{#idx72571}

INT 2A - NetSoft DOS-NET v1.20+ - 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.} {#idx72795}

INT 2A - NETWORK - BEGIN DOS CRITICAL SECTION {callout or callback, 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.} {#idx72828}

INT 2C - Cloaking - CALL PROTECTED-MODE PASSALONG CHAIN {real mode} {#idx73172}

INT 2C - Cloaking - CALL V86-MODE INTERRUPT HANDLER {protected mode} {#idx73547}{#idx73552}

INT 2C - Cloaking - CHAIN TO V86-MODE INTERRUPT HANDLER {protected mode} {#idx73564}

INT 2C - Cloaking - GET PROTECTED-MODE INTERRUPT VECTOR {protected mode} {#idx73266}{#idx73270}

INT 2C - Cloaking - SET 8259 IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. BASE VECTORS {protected mode} {#idx73596}

INT 2C - Cloaking - SET PASSALONG ADDRESS {protected mode} {#idx73312}

INT 2C - Cloaking - SET PROTECTED-MODE INTERRUPT VECTOR {protected mode} {#idx73277}{#idx73282}

INT 2C - Cloaking - SET SECONDARY STACK {protected mode} {#idx73589}

INT 2C - Cloaking v1.01 - "Issue_System_Modal_Message" {protected mode} {#idx73443}

INT 2C - STARLITE architecture - KERNEL 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. {#idx73166}

INT 2D - ALTERNATE MULTIPLEX INTERRUPT SPECIFICATION (AMIS) [v3.6] {#idx73766}{#idx73776}{#idx73800}{#idx73801}{#idx73805}{#idx73809}{#idx73825}{#idx73829}{#idx73833}{#idx73835}{#idx73844}{#idx73847}

INT 2D - AMIS v3.0+ - DETERMINE CHAINED INTERRUPTS {#idx74020}{#idx74021}{#idx74025}{#idx74026}{#idx74028}{#idx74029}{#idx74036}{#idx74049}{#idx74050}{#idx74053}

INT 2D - AMIS v3.0+ - GET PRIVATE ENTRY POINT {#idx73943}{#idx73953}

INT 2D - AMIS v3.0+ - INSTALLATION CHECK {#idx73872}

INT 2D - AMIS v3.0+ - REQUEST POP-UP {#idx74002}

INT 2D - AMIS v3.0+ - UNINSTALL {#idx73972}{#idx73990}

INT 2D - AMIS v3.6 - GET DEVICE-DRIVER INFORMATION {#idx74117}

INT 2F - ANSIPLUS v4.00+ - ENABLE/DISABLE ANSIPLUS DRIVER {#idx82053}{#idx82054}{#idx82062}

INT 2F - AVATAR(Advanced Video Attribute Terminal Assembler and Recreator) A set of control codes which may be used to affect the output of characters to the screen on systems equipped with an appropriate driver. Similar in intent to ANSI sequences, AVATAR has shorter command sequences and provides additional PC-specific functionality. AVATAR is primarily used by the Opus and Maximus bulletin board systems (it was designed by one of the developers of the Opus system). Serial Dispatcher - INSTALL IRQ3 HANDLER {#idx81963}

INT 2F - Banyan VINES v4+ - GET BANV INTERRUPT NUMBER {#idx93632}{#idx93634}

INT 2F - BMB Compuscience Canada Utilities Interface - INSTALLATION CHECK {#idx74876}{#idx74878}{#idx74896}{#idx74945}

INT 2F - Borland C++ 3.0 DPMILOAD.EXE - GET PROTECTED-MODE INTERRUPT VECTOR {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.} {#idx95865}{#idx95867}

INT 2F - Borland C++ 3.0 DPMILOAD.EXE - SET PROTECTED-MODE INTERRUPT VECTOR {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.} {#idx95875}{#idx95879}

INT 2F - Borland C++ 3.0 DPMILOAD.EXE - SIMULATE REAL MODE INTERRUPT {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.} {#idx95699}{#idx95703}

INT 2F - CappaCom programs - 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. {#idx94125}

INT 2F - Communicating Applications SpecificationDCA and Intel's standard programmatic interface for sending and receiving FAXes via any of a number of internal FAX boards. - GET HARDWARE STATUS {#idx92551}

INT 2F - DBLSPACE.BIN - "DSGetEntryPoints" - GET DEVICE DRIVER ENTRY POINTS {#idx84629}

INT 2F - DBLSPACE.BIN - "DSSetEntryPoints" - SET DEVICE DRIVER ENTRY POINTS {#idx84640}

INT 2F - DESQview v2.26+ External Dev Interface - CHANGE KEYBOARD FOCUS {callout or callback} {#idx94453}

INT 2F - DESQview v2.26+ External Dev Interface - DV TERMINATION {callout or callback} {#idx94346}

INT 2F - DESQview v2.26+ External Dev Interface - RESTORE STATE {callout or callback} {#idx94439}

INT 2F - DESQview v2.26+ External Dev Interface - SAVE STATE {callout or callback} {#idx94424}

INT 2F - DESQview v2.26+ XDIsee External Device Interface - CUSTOM SUBFUNCTION, Ralf Brown's XDIsee External Device Interface drivers {#idx94237}

INT 2F - DESQview v2.50+ External Dev Interface - INITIALIZE DV {callout or callback} {#idx94528}

INT 2F - DOS 3.0+ internal - GET INTERRUPT ADDRESS {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.} {#idx77296}{#idx77297}

INT 2F - DOS 3.0+ internal - PERFORM CRITICAL ERROR INTERRUPT {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.} {#idx77363}

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.} {#idx78435}{#idx78440}

INT 2F - DOS 5+ TASK SWITCHER - BUILD CALLOUT CHAIN {callout or callback} {#idx84944}{#idx84959}{#idx84964}{#idx84975}

INT 2F - DOS 5+ TASK SWITCHER - IDENTIFY INSTANCE DATA {callout or callback} {#idx85053}

INT 2F - DOS Protected ModeOne of the operating modes of the 80286 and higher Intel processors, in which addresses used by programs no longer correspond to physical addresses and the CPU enforces various protection mechanisms designed to prevent one program from disrupting other programs or the operating system. See also Real Mode, Virtual-86 Mode. Services (DPMSsee DOS Protected-Mode Services) v1.0 - REGISTER CLIENT {#idx83701}{#idx83712}{#idx83724}

INT 2F - DR DOS 6.0+ FDOS EXTENSIONS - INSTALL FDOS HOOK (SHARE / DELWATCH) {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.} {#idx75852}

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.} {#idx75594}{#idx75608}{#idx75620}{#idx75626}{#idx75633}{#idx75634}{#idx75639}

INT 2F - FINDIRQ.COM - GET HOOKED INTERRUPTS {#idx95321}{#idx95322}{#idx95323}

INT 2F - INTERLNK - INSTALLATION CHECK {#idx85784}

INT 2F - InterWave Game 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. - OPEN GAME DEVICE {real mode} {#idx92933}

INT 2F - INTMON v2.1 - HOOK INTERRUPT??? {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.} {#idx89021}{#idx89023}

INT 2F - INTMON v2.1 - 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.} {#idx89000}

INT 2F - INTMON v2.1 - RESET {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.} {#idx89009}{#idx89012}

INT 2F - Jot-It! v1.50 - UNINSTALL {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.} {#idx95437}

INT 2F - Kingswood TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user. The name comes from the name of the DOS function call used to remain in memory after termination. INTERFACE - INSTALLATION CHECK {#idx82952}{#idx82953}{#idx82954}{#idx82956}

INT 2F - Kingswood TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user. The name comes from the name of the DOS function call used to remain in memory after termination. INTERFACE - REMOVAL CHECK {#idx82961}

INT 2F - MDEBUG command driver - EXECUTE KEY IN THE MONITOR {#idx93260}

INT 2F - Microsoft Profiler (PROF.COM/VPROD.386) - SET SAMPLING RATE {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.} {#idx83885}

INT 2F - MS Windows - GET 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. ENTRY POINT {#idx79810}{#idx79873}{#idx80099}

INT 2F - MS Windows - MX1501HAD - 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 {#idx81366}

INT 2F - MS Windows - SWITCH VMs AND CALLBACK {#idx81442}

INT 2F - MS Windows - VMD - 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 {#idx80249}

INT 2F - MS Windows - WINDOWS ENHANCED MODE & 286 DOSX INIT BROADCAST {callout or callback} {#idx79269}

INT 2F - Multiplex - NOTES {#idx74836}{#idx74852}

INT 2F - Novell DOS 7 - EMM386.EXE - CHECK IF MULTITASKING SUPPORT LOADED??? {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.} {#idx78427}

INT 2F - Novell DOS 7 - EMM386.EXE - MULTITASKING 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. - AVAILABLE FOR APPS {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.} {#idx82870}

INT 2F - Novell DOS 7 - EMM386.EXE - MULTITASKING 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. - DOMAINS {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.} {#idx82694}{#idx82709}{#idx82728}{#idx82732}{#idx82764}

INT 2F - Novell DOS 7 - EMM386.EXE - MULTITASKING 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. - DPMIsee DOS Protected-Mode Interface SERVICES {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.} {#idx82853}

INT 2F - Novell DOS 7 - EMM386.EXE - MULTITASKING 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. - MEMORY {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.} {#idx82653}{#idx82655}{#idx82656}{#idx82679}

INT 2F - Novell DOS 7 - EMM386.EXE - MULTITASKING 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. - REAL-TIME MONITOR {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.} {#idx82612}

INT 2F - Novell DOS 7 - EMM386.EXE - MULTITASKING 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. - SUPERVISOR MODULE {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.} {#idx82481}

INT 2F - Novell DOS 7 - EMM386.EXE - MULTITASKING 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. - VIRTUAL MACHINES {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.} {#idx82829}

INT 2F - Novell NetWare - Access Server Driver - INSTALLATION CHECK {#idx87556}{#idx87564}{#idx87573}{#idx87582}{#idx87588}{#idx87594}{#idx87603}{#idx87610}{#idx87621}{#idx87629}{#idx87635}

INT 2F - Novell NetWare - Adv NetWare 4.0 DOS Requester - GET VLM CALL ADDRESS {#idx86485}{#idx86889}

INT 2F - Novell NetWare - DOS Requester - BROADCAST CALLBACK {callout or callback} {#idx87093}

INT 2F - Novell NetWare - DOS Requester - BROADCAST/SFT3 INFORM {callout or callback} {#idx87111}

INT 2F - Novell NetWare - DOS Requester v1.03+ - GET VLM CallA ADDRESS {#idx86982}

INT 2F - Novell NetWare - IPXODI v2.12 - GET GNMA SUPPORT {#idx87138}{#idx87143}{#idx87147}{#idx87152}{#idx87162}{#idx87166}{#idx87172}{#idx87178}{#idx87182}

INT 2F - Novell NetWare - TBMI v1.1+ - GET STATISTICS {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.} {#idx86196}

INT 2F - Novell NetWare - TCP/IPThe protocol suite originally developed by DARPA for use on its ARPAnet network, which is now known as the Internet. See also IP, TCP. Protocol Stack - INSTALLATION CHECK {#idx87202}

INT 2F - Novell NetWare - TCP/IPThe protocol suite originally developed by DARPA for use on its ARPAnet network, which is now known as the Internet. See also IP, TCP. Protocol Stack - WINDOWS SUPPORT??? {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.} {#idx87334}

INT 2F - Novell ODI(Open Data-link Interface) A hardware-independent network interface developed by Novell, Inc. See also NDIS, Packet Driver. Link Support Layer (LSL.COM) - INSTALLATION CHECK {#idx90751}{#idx90782}{#idx90784}{#idx90786}{#idx90843}{#idx90880}

INT 2F - PC-DOS Econet v1.05 - ADD EVENT HANDLER {#idx92066}

INT 2F - PC-DOS Econet v1.05 - ENABLE/DISABLE EVENT SCHEDULER {#idx92128}

INT 2F - PC-DOS Econet v1.05 - INSTALLATION CHECK {#idx91954}

INT 2F - PC-DOS Econet v1.05 - PERFORM NETWORK OPERATION {#idx91976}

INT 2F - PC-DOS Econet v1.05 - REMOVE EVENT HANDLER {#idx92083}

INT 2F - PC-DOS Econet v1.05 - RESET BOARD AND DRIVER {#idx91964}

INT 2F - PC-DOS Econet v1.05 - SET DEFAULT EVENT ACTION {#idx92094}

INT 2F - PC-DOS Econet v1.05 - SET INDIVIDUAL EVENT ACTION {#idx92105}

INT 2F - PC-DOS Econet v1.05 - TEST/CLEAR EVENT STATUS {#idx92114}

INT 2F - QMR - INSTALLATION CHECK {#idx90986}

INT 2F - QRIP/TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user. The name comes from the name of the DOS function call used to remain in memory after termination. - UNINSTALL {#idx89414}

INT 2F - TesSeRact RAM-RESIDENT PROGRAM INTERFACE {#idx85520}{#idx85570}{#idx85573}{#idx85574}{#idx85575}{#idx85576}{#idx85580}{#idx85583}

INT 2F - TRAP.COM - 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.} {#idx93823}

INT 2F - Windows95 - SAVE32.COM - INSTALLATION CHECK {#idx79657}

INT 31 - CauseWay - "ExecOverlay" - LOAD AND OPTIONALLY EXECUTE APP CODE {protected mode} {#idx98182}

INT 31 - CauseWay - "IntXX" - SIMULATE REAL-MODE INTERRUPT {protected mode} {#idx97759}{#idx97761}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - ALLOCATE REAL MODE CALLBACK ADDRESS {protected mode} {#idx96998}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - CALL REAL MODE PROCEDURE WITH FAR RETURN FRAME {protected mode} {#idx96917}{#idx96928}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - CALL REAL MODE PROCEDURE WITH IRET FRAME {protected mode} {#idx96947}{#idx96958}{#idx96964}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - GET AND DISABLE VIRTUAL INTERRUPT STATE {protected mode} {#idx97435}{#idx97438}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - GET AND ENABLE VIRTUAL INTERRUPT STATE {protected mode} {#idx97448}{#idx97451}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - GET DPMIsee DOS Protected-Mode Interface VERSION {protected mode} {#idx97061}{#idx97071}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - GET PROTECTED MODE INTERRUPT VECTOR {protected mode} {#idx96769}{#idx96772}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - GET RAW MODE SWITCH ADDRESSES {protected mode} {#idx97050}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - GET REAL MODE INTERRUPT VECTOR {protected mode} {#idx96694}{#idx96698}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - GET VIRTUAL INTERRUPT STATE {protected mode} {#idx97460}{#idx97462}{#idx97466}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - SET PROCESSOR EXCEPTION HANDLER VECTOR {protected mode} {#idx96747}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - SET PROTECTED MODE INTERRUPT VECTOR {protected mode} {#idx96786}{#idx96789}{#idx96795}{#idx96798}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - SET REAL MODE INTERRUPT VECTOR {protected mode} {#idx96703}{#idx96709}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - SIMULATE REAL MODE INTERRUPT {protected mode} {#idx96879}{#idx96883}{#idx96892}{#idx96901}

INT 31 - DPMIsee DOS Protected-Mode Interface 1.0+ - SERIALIZE SHARED MEMORY {protected mode} {#idx97614}

INT 31 - VIRUS - "Vacsina" series - INSTALLATION CHECK (NOT A VECTOR!) {#idx96394}

INT 32 - NOISE.SYS 0.53 - 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. {#idx98347}

INT 32 - NOISE.SYS v0.55+ - GET INTERRUPT HOOK LIST {#idx98375}{#idx98379}{#idx98382}{#idx98385}

INT 33 - LOGITECH MOUSE - REMOVE DRIVER FROM MEMORY {#idx99525}

INT 33 - Mouse Systems MOUSE DRIVER - POPUP.COM - INSTALLATION CHECK {#idx99348}

INT 33 - Mouse Systems MOUSE DRIVER v7.01+ - CONFIGURE MOUSE??? {#idx99112}

INT 33 - MS MOUSE - RESET DRIVER AND READ STATUS {#idx98522}

INT 33 - MS MOUSE v1.0+ - DEFINE INTERRUPT SUBROUTINE PARAMETERS {#idx98637}{#idx98647}

INT 33 - MS MOUSE v3.0+ - EXCHANGE INTERRUPT SUBROUTINES {#idx98707}{#idx98710}

INT 33 - MS MOUSE v6.0+ - RETURN USER ALTERNATE INTERRUPT VECTOR {#idx98758}{#idx98762}

INT 33 - MS MOUSE v6.0+ - SET INTERRUPT RATE {#idx98780}{#idx98786}

INT 33 - MS MOUSE v6.26+ - GET GENERAL DRIVER INFORMATION {#idx98894}

INT 33 - MS MOUSE v6.26+ - GET SOFTWARE VERSION, MOUSE TYPE, AND IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. NUMBER {#idx98870}

INT 33 - MS MOUSE v7.05+ - GET SWITCH SETTINGS AND ACCELERATION PROFILE DATA {#idx99060}

INT 33 - Smooth Mouse Driver, PrecisePoint - GET INFORMATION {#idx99652}

INT 34 - FLOATING POINT EMULATION - OPCODE D8h {#idx99763}

INT 35 - FLOATING POINT EMULATION - OPCODE D9h {#idx99771}

INT 36 - FLOATING POINT EMULATION - OPCODE DAh {#idx99779}

INT 37 - FLOATING POINT EMULATION - OPCODE DBh {#idx99787}

INT 38 - FLOATING POINT EMULATION - OPCODE DCh {#idx99795}

INT 39 - FLOATING POINT EMULATION - OPCODE DDh {#idx99813}

INT 3A - FLOATING POINT EMULATION - OPCODE DEh {#idx99821}

INT 3B - FLOATING POINT EMULATION - OPCODE DFh {#idx99829}

INT 3C - FLOATING POINT EMULATION - INSTRUCTIONS WITH SEGMENT OVERRIDE {#idx99837}

INT 3D - FLOATING POINT EMULATION - STANDALONE FWAIT {#idx99846}

INT 3F - Overlay manager interrupt (Microsoft LINK.EXE, Borland TLINK VROOMM) {#idx99872}

INT 43 - Z100 - Master 8259 - Slave 8259 input {#idx100334}

INT 48 - KEYBOARD - CORDLESS KEYBOARD TRANSLATION (PCjr) {#idx100715}

INT 48 - TI Professional PCIBM PC - SPEAKER DEVICE - SOUND SPEAKER {#idx100786}

INT 49 - MAGic v1.16+ - TURN ON MAGNIFICATION {#idx100970}{#idx100972}{#idx100978}

INT 49 - Tandy 2000 - BOOTSTRAP LOADER {#idx100951}

INT 4A - SYSTEM - USER ALARM HANDLER {callout or callback} {#idx101209}{#idx101212}

INT 4A - Tandy 2000 - PRINT SCREEN {#idx101227}

INT 4B - Common Access Method 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. interface (draft revision 1.9) {#idx101393}

INT 4B - Tandy 2000 - EQUIPMENT DETERMINATION {#idx101406}

INT 4C - TI Professional PCIBM PC - CLOCK/ANALOG INTERFACE {#idx101666}

INT 4F - Common Access Method 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. interface rev 2.3 - SEND CCB TO XPT/SIM {#idx102193}

INT 50 - IRQ0 relocated by DESQview {#idx102218}

INT 51 - IRQ1 relocated by DESQview {#idx102541}

INT 51 - Tandy 2000 - KEYBOARD SERVICES {#idx102589}

INT 52 - IRQ2 relocated by DESQview {#idx102616}

INT 52 - Tandy 2000 - VIDEO SERVICES {#idx102645}

INT 53 - IRQ3 relocated by DESQview {#idx102668}

INT 53 - Tandy 2000 - SERIAL COMMUNICATIONS {#idx102704}

INT 53 - TI Professional PCIBM PC - SVC INTERFACE {#idx102690}

INT 53 - WEB??? - 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. {#idx102724}

INT 54 - IRQ4 relocated by DESQview {#idx102739}

INT 54 - Tandy 2000 - LINE PRINTER {#idx102773}

INT 54 - TI Professional PCIBM PC - ACTIVATE TASK SUBROUTINE {#idx102759}

INT 55 - IRQ5 relocated by DESQview {#idx102807}

INT 55 - TI Professional PCIBM PC - RESERVED FOR FUTURE USE {#idx102827}{#idx102842}

INT 56 - IRQ6 relocated by DESQview {#idx102868}

INT 56 - TI Professional PCIBM PC - RESERVED FOR FUTURE USE {#idx102888}{#idx102903}

INT 57 - IRQ7 relocated by DESQview {#idx102928}

INT 58 - TI Professional PCIBM PC - SYSTEM TIMER 25ms HOOK {callout or callback} {#idx102982}{#idx102995}

INT 59 - TI Professional PCIBM PC - COMMON ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. HARDWARE INTERRUPT EXIT VECTOR {#idx103028}{#idx103032}{#idx103037}

INT 5A - TI Professional PCIBM PC - SYSTEM TIMER 100ms HOOK {#idx103093}{#idx103106}

INT 5C - NetBIOSOne of a number of low-level device-independent network interfaces; the other major interfaces are Novell's IPX and the Internet's IP (Internet Protocol, the lower-level portion of TCP/IP). INTERFACE {#idx103299}{#idx103433}{#idx103477}

INT 60 - AccessDOS - 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. {#idx107094}

INT 60 - Excelan LAN Workplace for DOS 3.5 - 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. {#idx104114}{#idx104152}{#idx104155}{#idx104212}{#idx104216}

INT 60 - FTP(File Transfer Protocol) The standard protocol for copying files from one machine to another on a TCP/IP (Internet) network. Also the program of the same name with which a user may transfer files. Packet DriverAny one of the numerous drivers conforming to FTP Software's Packet Driver Specification, which provides a hardware-independent network interface. See also NDIS, ODI. 1.09+ - HIGH-PERF FUNC - GET PARAMETERS {#idx106926}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_GET_SETTINGS" {partially documented} {#idx105552}

INT 60 - INTRSPY/CMDSPY v1.0 only - 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.} {#idx104170}{#idx104179}

INT 60 - Nabbit v2.0 - (NOT A VECTOR!) - INSTALLATION CHECK {#idx103954}{#idx103964}{#idx103971}{#idx103986}{#idx103991}{#idx103999}

INT 60 - PCIBM PC/370 v4.2 - ??? {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.} {#idx104193}

INT 60 - reserved for user interrupt {#idx103794}

INT 60 - RIFS - CLIENT - INSTALLATION CHECK {#idx106577}

INT 60 - RIFS - SERVER - INSTALLATION CHECK {#idx106638}

INT 60 - SYS_PROF.EXE - PROFILER STATUS {#idx106545}

INT 60 - Tangram Arbiter - 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. {#idx104103}

INT 61 - Banyan VINES - "Soclose" - CLOSE A SOCKET {#idx107571}{#idx107574}

INT 61 - Banyan VINES - "Soint" - SET USER COMPLETION FUNCTION {#idx107636}{#idx107639}{#idx107644}

INT 61 - Banyan VINES - "Sorec" - RECEIVE INPUT EVENT NOTIFICATION {#idx107542}{#idx107545}

INT 61 - Banyan VINES - "Sosend" - INITIATE OUTPUT EVENT {#idx107506}{#idx107509}

INT 61 - Banyan VINES - "Sosession" - REGISTER APPLICATION WITH COMM SERVICE {#idx107617}{#idx107621}

INT 61 - Banyan VINES - "Sosock" - OPEN COMMUNICATIONS SOCKET {#idx107463}{#idx107466}

INT 61 - Banyan VINES - "Sowait" - WAIT FOR ASYNCHRONOUS EVENT COMPLETION {#idx107593}{#idx107597}

INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - INTERRUPT ON CHAR FROM HOST {#idx107951}{#idx107954}

INT 61 - Banyan VINES - ASYNC TERMINAL EMULATION - INTERRUPT ON HOST MESSAGE {#idx108018}{#idx108021}

INT 61 - Banyan VINES - CHECK SERVICE {#idx108831}

INT 61 - OPTIMA 1024 VGA-Sync - QUERY ZOOM WINDOW {#idx108443}

INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - CENTER ZOOM WINDOW {#idx107658}

INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - END ZOOM {#idx107794}

INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - ENTER SPECIFY MODE {#idx108394}

INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - QUERY APPLICATION KEY {#idx108500}

INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - REPORT ZOOM FACTOR {#idx108039}

INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - SET ZOOM OFFSET {#idx108630}

INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - SET ZOOM WINDOW {#idx108456}

INT 61 - OPTIMA 1024 VGA-Sync,ET-3000 chipset - ZOOM DISPLAY {#idx107417}

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+ - "get_addr" - GET INTERNET ADDRESS OF NET DESCR {#idx108919}{#idx108947}{#idx108950}{#idx108966}{#idx108969}

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_select" - DETECT READINESS OF NETWORK {#idx109305}

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_write" - WRITE TO THE NETWORK {#idx109628}

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+ - GET DEBUG INFORMATION {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.} {#idx107335}{#idx107380}{#idx107384}{#idx107387}{#idx107395}{#idx107399}

INT 61 - reserved for user interrupt {#idx107102}

INT 61 - TCPOpen kernel - 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. {#idx107217}{#idx107244}{#idx107305}

INT 62 - BW-TCP - ETHDRV.SYS - MAP EMSsee Expanded Memory Specification PAGE FRAME {#idx113961}{#idx113964}

INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ??? {#idx113424}{#idx113427}

INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - ALLOCATE AND MAP EMSsee Expanded Memory Specification FOR DRIVER {#idx113877}{#idx113880}

INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - END CRITICAL SECTION {#idx113676}{#idx113679}

INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - GET ??? {#idx113820}{#idx113823}

INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - GET PHYSICAL HARDWARE ADDRESS {#idx110504}{#idx110507}

INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - GET REAL IP(Internet Protocol) The lower level (transport layer) of the TCP/IP protocol suite. See also TCP, TCP/IP. ADDRESS {#idx113351}{#idx113354}

INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - GET SOCKET NUMBER??? {#idx113755}{#idx113758}

INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - HOOK TIMER INTERRUPT {#idx113510}{#idx113517}{#idx113520}

INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - REMOVE ??? {#idx113597}{#idx113600}

INT 62 - BW-TCP - HW DRIVER (ETHDEV.SYS) - UNHOOK TIMER INTERRUPT {#idx113541}

INT 62 - FGDRIVER v3.03+ - "FG_ALLOCATE" - CREATE VIRTUAL VIDEO PAGE {partially documented} {#idx110533}

INT 62 - reserved for user interrupt {#idx110391}{#idx110438}

INT 62 - XFS v1.76 - FILTERED PACKET DRIVER 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. {#idx110468}

INT 63 - BW-TCP - TCPIP.SYS - ??? {#idx114090}{#idx114093}{#idx114258}{#idx114396}{#idx114399}

INT 63 - BW-TCP - TCPIP.SYS - GET SOCKET {#idx114359}{#idx114362}

INT 63 - BW-TCP - TCPIP.SYS - SET IP(Internet Protocol) The lower level (transport layer) of the TCP/IP protocol suite. See also TCP, TCP/IP. ADDRESS??? {#idx114069}{#idx114072}

INT 63 - BW-TCP - TCPIP.SYS - WRITE TO THE NETWORK {#idx114270}

INT 63 - DESQview/X - 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. {#idx114032}{#idx114049}{#idx114052}

INT 63 - reserved for user interrupt {#idx113976}

INT 64 - BW-NFS - BWRPC - ??? {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.} {#idx114519}{#idx114522}{#idx114527}{#idx114529}

INT 64 - Extended Batch Language v3.14+ {#idx114479}

INT 64 - Novell NetWare to v2.0a - LOW-LEVEL 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. {#idx114445}

INT 64 - reserved for user interrupt {#idx114401}

INT 65 - Ad Lib SOUND.COM - INTERFACE {#idx114695}

INT 65 - FTP(File Transfer Protocol) The standard protocol for copying files from one machine to another on a TCP/IP (Internet) network. Also the program of the same name with which a user may transfer files. Software NDIS-Packet Driver adapter - POSTsee Power-On Self-Test PROCESSING INTERRUPT {#idx114658}

INT 65 - NetSoft DOS-NET v1.20+ - ??? 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.} {#idx114713}{#idx114727}{#idx114739}{#idx114751}{#idx114765}{#idx114779}

INT 65 - NetSoft DOS-NET v1.20+ - SPOOLER - ??? {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.} {#idx114787}{#idx114795}{#idx114803}{#idx114811}{#idx114819}{#idx114828}{#idx114841}{#idx114850}{#idx114858}{#idx114867}

INT 65 - reserved for user interrupt {#idx114615}

INT 66 - BitFax Scheduler - REMOVE TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user. The name comes from the name of the DOS function call used to remain in memory after termination. FROM MEMORY {#idx115483}

INT 66 - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. Digitized Sound Package MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer. driver - GET DIGITIZED SOUND CAPABIL {#idx115302}

INT 66 - IBMSND driver, DIGPAK - PLAY 8-BIT DIGITIZED SOUND {#idx115105}

INT 66 - IBMSND driver, DIGPAK - REPORT AUDIO DRIVER CAPABILITIES {#idx115158}

INT 66 - IBMSND driver, DIGPAK - SET CALLBACK ADDRESS {#idx115181}

INT 66 - MicroHelp Stay-Res Plus - FIND PROGRAM NAME {#idx115566}

INT 66 - MicroHelp Stay-Res/Stay-Res Plus - UNINSTALL {#idx115552}{#idx115556}

INT 66 - Newkey v5.4 - INSTALLATION VECTOR {#idx115012}

INT 66 - reserved for user interrupt {#idx114931}

INT 66 - TI Professional PCIBM PC - SYSTEM INFORMATION (NOT A VECTOR!) {#idx114953}

INT 67 - Nanosoft MD386 - SET DEBUG EXCEPTION HANDLER {#idx116928}

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.} {#idx115885}{#idx115887}{#idx115893}{#idx115915}{#idx115928}{#idx115940}{#idx115959}{#idx115965}{#idx115977}{#idx115980}{#idx116157}{#idx116160}{#idx116164}{#idx116168}{#idx116172}{#idx116177}{#idx116183}{#idx116239}{#idx116245}

INT 67 - RM386 - DISABLE RM386 {#idx116764}

INT 67 - RM386 - ENABLE RM386 {#idx116770}

INT 67 - RM386 - GET PAGE TABLE {#idx116776}

INT 67 - RM386 - GET PARTIAL PAGE TABLE {#idx116829}

INT 67 - RM386 - MAP LOGICAL 4K PAGE TO PHYSICAL SEGMENT {#idx116810}

INT 67 - RM386 - MAP PHYSICAL PAGE TO PHYSICAL SEGMENT {#idx116797}

INT 67 - RM386 - SET PAGE TABLE {#idx116782}

INT 67 - RM386 - SET PAGE TABLE BITS FOR RANGE OF PAGES {#idx116820}

INT 67 - RM386 - SET PARTIAL PAGE TABLE {#idx116838}

INT 67 - RM386 - SET WRITE-PROTECTION FOR PAGE IN FIRST MEGABYTE {#idx116790}

INT 67 - RM386 - V86-MODE I/O PORTIBM PC Portable (uses same BIOS as XT) TRAPPING CONTROL {#idx116850}{#idx116855}{#idx116861}

INT 67 - RM386 - V86-MODE I/O TRAPPING PORTIBM PC Portable (uses same BIOS as XT) CONTROL {#idx116882}

INT 67 - RM386 v6.00 - ??? {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.} {#idx116889}{#idx116895}{#idx116901}

INT 67 - RM386 v6.00 - GET RM386 GLOBAL FLAGS {#idx116692}

INT 67 - RM386 v6.00+ - GET INTERRUPT VECTORS {#idx116602}{#idx116608}

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 8259 INTERRUPT VECTOR MAPPINGS {#idx117089}

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. - SET 8259 INTERRUPT VECTOR MAPPINGS {#idx117101}{#idx117105}

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. - SWITCH TO PROTECTED MODE {#idx117121}{#idx117128}

INT 68 - Novell NetWare LU6.2 {#idx117223}

INT 69 - 10NET v5.0 - SYSSVC.COM - ??? {#idx118526}{#idx118539}

INT 69 - 10NET v5.0 - SYSSVC.COM - SIGNAL SYSTEM ERROR {#idx118609}

INT 69 - ISR.COM v1.00 - SPECIFY INTERRUPT HANDLER {#idx118582}{#idx118587}{#idx118588}{#idx118592}

INT 6A - DECnet DOS - LOCAL AREA TRANSPORT PROGRAM - INSTALLATION CHECK {#idx118623}

INT 6A - HP Vectra ATIBM PC AT - IRQ18 - RESERVED HARDWARE INTERRUPT {callout or callback} {#idx118640}

INT 6A - Super-TCP DOS TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user. The name comes from the name of the DOS function call used to remain in memory after termination. Kernel v3.57 - 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.} {#idx118666}

INT 6A - Super-TCP DOS TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user. The name comes from the name of the DOS function call used to remain in memory after termination. Kernel v3.57 - UNINSTALL {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.} {#idx118726}

INT 6B - DECnet DOS - PORTIBM PC Portable (uses same BIOS as XT) DRIVER {#idx118859}

INT 6B - HP Vectra ATIBM PC AT - IRQ19 - RESERVED HARDWARE INTERRUPT {callout or callback} {#idx118887}

INT 6B - Novell NASI/NACS, Ungermann-Bass Net One SERIAL I/O - BUFFERED WRITE {#idx118919}

INT 6C - DECnet DOS network scheduler {#idx119173}

INT 6C - HP Vectra ATIBM PC AT - IRQ20 - HP-HIL CONTROLLER INTERRUPT {callout or callback} {#idx119193}

INT 6D - DECnet DOS (before 2.1) - DATA LINK LAYER PROGRAM {#idx119230}

INT 6D - HP Vectra ATIBM PC AT - IRQ21 - RESERVED HARDWARE INTERRUPT {callout or callback} {#idx119248}

INT 6D - Matrox Multiple Monitor Support v1.0 - UNHOOK INTERRUPT (UNINSTALL) {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.} {#idx119297}

INT 6E - DECnet DOS - DECnet NETWORK PROCESS 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. {#idx119312}

INT 6E - HP Vectra ATIBM PC AT - IRQ22 - RESERVED HARDWARE INTERRUPT {callout or callback} {#idx119326}

INT 6F - 10NET - LOGIN {#idx119433}

INT 6F - Clara Empricost - TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user. The name comes from the name of the DOS function call used to remain in memory after termination. Version - INSTALLATION CHECK {#idx121516}

INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_DISBL_INTR" - END INTERRUPT SERVICE {#idx120392}

INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_ENABL_INTR" - START INTERRUPT SRVICE {#idx120355}

INT 6F - HP Vectra EX-BIOS - "F_ISR" (internal) - RESPOND TO LOGICAL ISR {#idx119531}{#idx119536}{#idx119688}

INT 70 - IRQ8 - CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. REAL-TIME CLOCK {callout or callback} {#idx121688}{#idx121693}

INT 70 - VIRUS - "Stupid" - ORIGINAL INT 21h VECTOR {#idx121718}

INT 72 - IRQ10 - RESERVED {callout or callback} {#idx121771}

INT 73 - IRQ11 - RESERVED {callout or callback} {#idx121787}

INT 74 - IRQ12 - POINTING DEVICE (PSIBM PS/2, any model) {callout or callback} {#idx121808}

INT 76 - IRQ14 - HARD DISK CONTROLLER OPERATION COMPLETE (ATIBM PC AT and later) {callout or callback} {#idx121865}{#idx121873}

INT 77 - IRQ15 - RESERVED (ATIBM PC AT,PSIBM PS/2, any model) {callout or callback} {#idx121901}{#idx121918}

INT 78 - HugeRealMode Driver - GET ENTRY POINT {#idx122136}{#idx122147}{#idx122150}{#idx122153}{#idx122166}

INT 78 - TARGA.DEV - CMC International 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. device driver - SET I/O PORTIBM PC Portable (uses same BIOS as XT) {#idx122080}

INT 78 - ULTRAMID - 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. {#idx122057}

INT 79 - DJGPP GO32.EXE DOS EXTENDER - RELOCATED IRQ1 {#idx122380}

INT 7A - Novell NetWare - IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. Driver - GET LOCAL TARGET {#idx122541}

INT 7A - Novell NetWare - IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. Driver - SEND PACKET {#idx122574}

INT 7A - Novell NetWare - IPXODI v2.12+ - IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. GENERATE CHECKSUM {#idx123081}

INT 7A - Novell NetWare - IPXODI v2.12+ - IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. VERIFY CHECKSUM {#idx123097}

INT 7A - Novell NetWare - IPXODI v2.12+ - OPEN LOOK-AHEAD SOCKET {#idx123130}{#idx123135}

INT 7A - Novell NetWare - SPX Driver - INSTALLATION CHECK {#idx122778}

INT 7A - Topware Network Operating System - ??? {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.} {#idx122463}

INT 7B - AutoCAD Device Interface - PRINTER/PLOTTER - SEND PLOTTING DATA {callout or callback, real mode} {#idx123430}

INT 7C - AutoShade v2 - RENDERING HARDCOPY DRIVER {#idx123575}

INT 7C - PRINDIR v8.02-8.xx - 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. {#idx123560}

INT 7C - SK-UPPS Data Link Interface 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. - DLI 2.8+ - INTERRUPT REQUEST {#idx123941}{#idx123948}

INT 7C - SK-UPPS Data Link Interface 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. - REGISTER PROTOCOL {#idx123674}{#idx123700}{#idx123728}

INT 7C - SK-UPPS Data Link Interface 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. - TRANSMIT FRAME {#idx123661}

INT 7C - SK-UPPS/SK-PASSPORT Data Link Interface (DLI) 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. {#idx123585}{#idx123587}

INT 7D - [obsoleted proposal] - ALTERNATE MULTIPLEX INTERRUPT {obsolete} {#idx123955}

INT 7D - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. DOS 6.1 E.EXE - ??? {#idx124007}

INT 7D - SCSILink - RESET 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. BUS {#idx124026}

INT 7E - SBOS v3.82 - SET INTERRUPT FOR ??? {#idx124202}{#idx124206}

INT 7E - SBOS v3.82 - UNINSTALL {#idx124192}

INT 7F - Alloy NTNX (Host) - GET INTERRUPT VECTORS {#idx125040}{#idx125041}{#idx125043}

INT 7F - Alloy NTNX - GET SYSTEM FLAGS {#idx125124}

INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - CLOSE ALL CHANNELS {#idx125281}

INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - CLOSE CHANNEL {#idx125237}

INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - LOCK ALL OPEN CHANNELS {#idx125292}

INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - LOCK CHANNEL {#idx125246}

INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - LOCK MULTIPLE CHANNELS {#idx125316}

INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - OPEN CHANNEL {#idx125223}

INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - RELEASE BUFFER {#idx125267}

INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - UNLOCK ALL LOCKED IDLE CHANNELS {#idx125303}

INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - UNLOCK CHANNEL {#idx125256}

INT 7F - Alloy NTNX, MW386 - CHANNEL CONTROL - UNLOCK MULTIPLE CHANNELS {#idx125329}

INT 7F - Alloy NTNX, MW386 - SET RECEIVE ISR {#idx125388}

INT 7F - Alloy NTNX,MW386 - GET ALTERNATE INTERRUPT {#idx125112}{#idx125114}{#idx125116}

INT 7F - CONVERGENT TECHNOLOGIES ClusterShare CTOS ACCESS VECTOR {#idx124336}{#idx124404}{#idx124408}

INT 7F - HLLAPI (IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. 3270 High-Level Language 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.)/LLAPI (Rabbit Low Level 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.) {#idx124514}{#idx124592}

INT 7F - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. 8514/A Adapter Interface (HDILOAD.EXE) {#idx124637}{#idx124748}

INT 7F - MultiLink Advanced v1.0+ - ENQUEUE SYSTEM RESOURCE {#idx124448}

INT 7F - MultiLink Advanced v1.0+ - SET TASK PRIORITY {#idx125085}

INT 7F - Telebit ACS SERIAL I/O {#idx124296}

INT 80 - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. 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. v1.00.12.AX1T - internal - 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. SUBSYSTEM SELECTION {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.} {#idx126150}

INT 80 - BusLogic BT-946C PCI 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 - SCRATCHPAD RAM(Random Access Memory) See also DRAM, SRAM. (NOT A VECTOR!) {#idx126087}

INT 80 - QPC Software PKTINT.COM - INITIALIZE {#idx126487}

INT 80 - SBSIM - "STARTSND" - START SOUND ON SPECIFIED DRIVER {#idx126180}

INT 80 - SoundBlaster SBFM driver - GET VERSION {#idx126281}{#idx126301}

INT 80 - SoundBlaster SBFM driver - TRANSPOSE MUSIC {#idx126409}

INT 81 - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. WinBIOS - SECOND HARD DRIVE AUTODETECTION {#idx126540}

INT 81 - BusLogic BT-946C PCI 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 - SCRATCHPAD RAM(Random Access Memory) See also DRAM, SRAM. (NOT A VECTOR!) {#idx126534}

INT 81 - Gravis UltraSound - MEGA_EM v3.0+ - INT 78 REDIRECT {#idx126603}

INT 81 - Gravis UltraSound - MEGA_EM v3.0+ - NMIsee Non-Maskable Interrupt REDIRECT {#idx126611}

INT 81 - Gravis UltraSound - MEGA_EM v3.0+ - SOUNDCARD IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. REDIRECT {#idx126619}

INT 81 - Gravis UltraSound - MegaEm - PROCESS COMMAND LINE {#idx126565}

INT 83 - JM Pro Tracker v5.0 - UNHOOK 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. INTERRUPT {#idx126760}

INT 89 - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. 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. - used while in interpreter {#idx126978}

INT 94 - PCM driver - INITIALIZE SOUND {partially documented} {#idx127299}

INT 94 - PCM driver - UNHOOK INTERRUPTS AND TURN OFF DMAsee Direct Memory Access {partially documented} {#idx127379}

INT 96 - KILL.COM, QKILL.COM - POP UP {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.} {#idx127572}{#idx127575}

INT 9F - VIRUS - "INT13" - STORAGE FOR USER INT 13h VECTOR {#idx127716}

INT A4 - Right Hand Man - 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.} {#idx127790}

INT B3 - ZIPKEY - GET VERSION {#idx127916}

INT B4 - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. 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. - used while in interpreter {#idx128049}

INT C6 - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. 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. - used while in interpreter {#idx128372}

INT C7 - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. 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. - used while in interpreter {#idx128403}

INT C8 - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. 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. - used while in interpreter {#idx128437}

INT C9 - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. 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. - used while in interpreter {#idx128456}

INT CA - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. 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. - used while in interpreter {#idx128475}

INT CB - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. 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. - used while in interpreter {#idx128494}

INT CC - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. 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. - used while in interpreter {#idx128518}

INT D4 - PC-MOS/386 v5.01 - SWAP CONTROL BLOCK DATA OF SCB OR TCB {#idx129183}

INT E0 - REAL/32 - "DEV_SETFLAG" - SET SYSTEM FLAG {#idx130646}

INT E0 - REAL/32 - "DEV_WAITFLAG" - WAIT ON SYSTEM FLAG {#idx130632}

INT E0 - REAL/32 - "P_TERMCPM" - TERMINATE CALLING PROCESS {#idx129936}

INT E0 - REAL/32 - "S_SYSDAT" - GET SYSTEM DATA AREA {#idx130959}{#idx130971}

INT E0 - VIRUS - "Micro-128" - ??? {#idx129519}

INT E4 - DIGITAL RESEARCH - FLAG INTERRUPT {#idx131722}{#idx131723}

INT E5 - DIGITAL RESEARCH - FIDDS INTERRUPT {#idx131739}{#idx131740}

INT E6 - CP/M-86One of the three operating systems offered by IBMInternational Busiuness Machines for its original PCIBM PC (the other two were MSDOS and the UCSD p-System). It has since evolved into DR-DOS version 6 and Novell DOS 7. v1.1 - XIOS INTERRUPT / UNKNOWN DISK DRIVE {callout or callback} {#idx131756}{#idx131761}

INT EC - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. 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. - used while in interpreter {#idx131896}

INT F1 - AQUEDUCT, PIPELINE - GET DATA AREA ADDRESS {#idx131998}

INT F1 - Common ISDN 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. (CAPI) v1.1 - "API-REGISTER" - INITIALIZE CAPI {#idx132040}{#idx132046}

INT F1 - Common ISDN 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. (CAPI) v1.1 - "API-SET-SIGNAL" - SIGNAL HANDLING {#idx132242}

INT F1 - Common ISDN 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. (CAPI) v2.0 - "CAPI_REGISTER" - INITIALIZE CAPI {#idx132081}{#idx132084}{#idx132098}{#idx132101}{#idx132105}

INT F1 - Common ISDN 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. (CAPI) v2.0 - "CAPI_SET_SIGNAL" - SIGNAL HANDLING {#idx132259}

INT F1 - reserved for user interrupt {#idx131969}

INT F2 - reserved for user interrupt {#idx132405}

INT F3 - reserved for user interrupt {#idx132436}

INT F4 - reserved for user interrupt {#idx132458}

INT F5 - reserved for user interrupt {#idx132479}

INT F6 - reserved for user interrupt {#idx132491}

INT F7 - reserved for user interrupt {#idx132503}

INT F8 - reserved for user interrupt {#idx132553}

INT F8 - Sanyo MBC-550/555 - IRQ0 - 100 HZ INTERRUPT {#idx132558}{#idx132563}

INT F9 - reserved for user interrupt {#idx132570}

INT FA - reserved for user interrupt {#idx132585}

INT FA - Sanyo MBC-550/555 - IRQ2 - SERIAL PORTIBM PC Portable (uses same BIOS as XT) USART(Universal Synchronous/Asynchronous Receiver/Transmitter) see also UART INTERRUPT {#idx132596}

INT FB - reserved for user interrupt {#idx132626}

INT FB - Sanyo MBC-550/555 - IRQ3 - KEYBOARD USART(Universal Synchronous/Asynchronous Receiver/Transmitter) see also UART RECEIVE INTERRUPT {#idx132633}

INT FC - reserved for user interrupt {#idx132648}

INT FC - Sanyo MBC-550/555 - IRQ4 - PRINTER READY INTERRUPT {#idx132665}{#idx132672}

INT FD - reserved for user interrupt {#idx132678}

INT FD - TFPCX - INSTALLATION CHECK {#idx132708}

INT FE - ATIBM PC AT/XT286IBM PC XT/286/PS50+IBM PS/2 Models 50,60,70,80 - destroyed by return from protected mode {#idx132749}

INT FE - Sanyo MBC-550/555 - IRQ6 - 8087 COPROCESSOR INTERRUPT {#idx132783}{#idx132788}

INT FF - QEMM-386.SYS v6.0+ - 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.} {#idx132850}

INT FF - Sanyo MBC-550/555 - IRQ7 - USER INTERRUPT FOR EXTERNAL INTERRUPT {#idx132830}{#idx132836}

Interrupt Primer {#idx176811}{#idx176814}{#idx176816}{#idx176819}{#idx176821}{#idx176823}{#idx176825}{#idx176829}{#idx176830}{#idx176834}{#idx176836}{#idx176839}{#idx176843}{#idx176859}{#idx176868}{#idx176874}{#idx176877}{#idx176880}{#idx176883}{#idx176884}{#idx176893}{#idx176896}{#idx176897}{#idx176900}

MEM 0000h:0000h - INTERRUPT VECTOR TABLE {real mode} {#idx160599}{#idx160603}

MEM 0000h:031Dh - 1989 AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. 386sx 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. - USER-DEFINABLE TYPE 47 HARD DISK PARMS {#idx160609}

MEM 0000h:032Dh - 1989 AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. 386sx 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. - USER-DEFINABLE TYPE 48 HARD DISK PARMS {#idx160618}

MEM 0040h:000Eh - SEGMENT OF 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. DATA SEGMENT (PS/2IBM PS/2, any model, newer BIOSes) {#idx160848}{#idx160852}{#idx160879}

MEM 0040h:003Eh - DISKETTE - RECALIBRATE STATUS {#idx161174}

MEM 0040h:0042h - DISK - FLOPPY/HARD DRIVE STATUS/COMMAND BYTES {#idx161351}

MEM 0040h:006Bh - CASSETTE (PCIBM PC only) - LAST VALUE READ FROM CASSETTE {#idx161545}{#idx161551}

MEM 0040h:008Eh - FIXED DISK - INTERRUPT CONTROL [not XTIBM PC XT] {#idx162002}

MEM 0040h:00A1h - BIT 5 SET IF LAN SUPPORT PROGRAM INTERRUPT ARBITRATOR PRESENT {#idx162205}

MEM 0040h:00A4h - PS/2IBM PS/2, any model Mod 30 - SAVED FIXED DISK INTERRUPT VECTOR {#idx162220}

MEM 0070h:0100h - DOS 5+ - ORIGINAL INTERRUPT VECTORS 10h,13h,15h,19h,1Bh {#idx162826}{#idx162830}

MEM A000h:FF00h - S3 - MEM-MAPPED "SCENIC HIGHWAY" (Local Periph. Bus) ACCESS {#idx163472}{#idx163567}{#idx163576}{#idx163579}{#idx163582}{#idx163586}{#idx163590}

MEM BFF0h:0000h - ET4000/W32 ACL accelerator {#idx163685}{#idx163725}

MEM F000h:xxx0h - PCI IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. Routing Table Specification v1.0 {#idx164010}{#idx164014}

MEM FEC0h:0010h - Pentium - 82379AB I/O APIC - I/O WINDOW {#idx164416}{#idx164418}{#idx164420}

MEM FEE0h:0000h - Pentium - LOCAL APIC {#idx164427}

MEM FEE0h:00A0h - Pentium - LOCAL APIC - END OF INTERRUPT REGISTER (EOI(End of Interrupt) A particular command sent to the interrupt controller to indicate that the interrupt has been handled by software and that new interrupts of the same or lower priority may now be signalled by the interrupt controller.) {#idx164498}

MEM FEE0h:00F0h - Pentium + - LOCAL APIC - SPURIOUS INTERRUPT VECTOR REGISTER {#idx164533}{#idx164539}

MEM FEE0h:0200h - Pentium + - LOCAL APIC - INTERRUPT REQUEST REGISTER (IRR) {#idx164562}

MEM FEE0h:0300h - Pentium + - LOCAL APIC - INTERRUPT COMMAND REGISTER (ICR) {#idx164592}{#idx164601}{#idx164604}{#idx164611}

MEM FEE0h:0310h - Pentium + - LOCAL APIC - INTERRUPT COMMAND REGISTER (ICR) {#idx164622}

MEM FEE0h:0320h - Pentium + - LOCAL APIC - LOCAL VECTOR TABLE ENTRY 0 (TIMER) {#idx164641}{#idx164646}

MEM FEE0h:0350h - Pentium + - LOCAL APIC - LOCAL VECTOR TABLE ENTRY 1 (LINT0) {#idx164672}{#idx164673}{#idx164679}

MEM FEE0h:0390h - Pentium + - LOCAL APIC - CURRENT COUNT REGISTER (CCR) TIMER {#idx164712}

MEM xxxxh:xxx0h - Advanced Configuration and Power Interface Spec (ACPI) v0.9+ {#idx164090}{#idx164093}{#idx164189}{#idx164211}

MEM xxxxh:xxx0h - Multiprocessor Specification - FLOATING POINTER STRUCTURE {#idx164331}{#idx164348}{#idx164350}{#idx164358}

MSR(Model-Specific Register) Additional, indirectly-accessible, registers containing control or status information about various aspects of the processor such as caches, performance counters, and the like. These registers, accessible via the RDMSR and WRMSR instructions, were added with the Pentium and later-model 486 processors. 0000h:000Eh - Pentium, K6, C6 - (TR12) NEW FEATURE CONTROL {#idx165059}{#idx165062}

MSR(Model-Specific Register) Additional, indirectly-accessible, registers containing control or status information about various aspects of the processor such as caches, performance counters, and the like. These registers, accessible via the RDMSR and WRMSR instructions, were added with the Pentium and later-model 486 processors. 0000h:0011h - Pentium, Cyrix 6x86MX - EVENT COUNTER SELECTION AND CONTROL {#idx165144}

MSR(Model-Specific Register) Additional, indirectly-accessible, registers containing control or status information about various aspects of the processor such as caches, performance counters, and the like. These registers, accessible via the RDMSR and WRMSR instructions, were added with the Pentium and later-model 486 processors. 0000h:0186h - Pentium Pro - "EVNTSEL0" - PERFORM. COUNTER EVENT SELECTION 0 {#idx165843}{#idx165845}

MSR(Model-Specific Register) Additional, indirectly-accessible, registers containing control or status information about various aspects of the processor such as caches, performance counters, and the like. These registers, accessible via the RDMSR and WRMSR instructions, were added with the Pentium and later-model 486 processors. 0000h:01DDh - Pentium Pro, PentiumII - "LASTINTFROMIP" {#idx165897}

MSR(Model-Specific Register) Additional, indirectly-accessible, registers containing control or status information about various aspects of the processor such as caches, performance counters, and the like. These registers, accessible via the RDMSR and WRMSR instructions, were added with the Pentium and later-model 486 processors. 0000h:01DEh - Pentium Pro, PentiumII - "LASTINTTOIP" {#idx165902}

MSR(Model-Specific Register) Additional, indirectly-accessible, registers containing control or status information about various aspects of the processor such as caches, performance counters, and the like. These registers, accessible via the RDMSR and WRMSR instructions, were added with the Pentium and later-model 486 processors. 0000h:1000h - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. 386/486 SLC - PROCESSOR OPERATION REGISTER {#idx166162}

MSR(Model-Specific Register) Additional, indirectly-accessible, registers containing control or status information about various aspects of the processor such as caches, performance counters, and the like. These registers, accessible via the RDMSR and WRMSR instructions, were added with the Pentium and later-model 486 processors. C001h:0000h - AMD Athlon - "PerfEvtSel[0]" PERFORMANCE EVENT SELECTOR #0 {#idx166501}{#idx166530}

Notes {#idx160597}{#idx167942}

Opcodes List {#idx172491}{#idx172499}{#idx172522}{#idx172557}{#idx172587}{#idx172647}{#idx172964}{#idx172967}{#idx172971}{#idx172973}{#idx172977}{#idx172979}{#idx173065}{#idx173120}{#idx173222}{#idx174120}{#idx174123}{#idx174158}{#idx174227}{#idx174287}{#idx174301}{#idx175037}{#idx175054}{#idx175059}{#idx175181}{#idx175202}{#idx175353}{#idx175415}{#idx175429}{#idx175455}{#idx175535}{#idx175541}{#idx175582}{#idx175633}{#idx175683}{#idx175685}{#idx175693}{#idx175694}{#idx175696}{#idx175700}

PORTIBM PC Portable (uses same BIOS as XT) 0020-003F - PIC 1 - PROGRAMMABLE INTERRUPT CONTROLLER (8259A) {#idx133075}{#idx133091}{#idx133095}{#idx133099}{#idx133102}{#idx133113}{#idx133124}{#idx133130}{#idx133134}{#idx133137}{#idx133142}{#idx133147}{#idx133152}{#idx133155}{#idx133165}{#idx133173}{#idx133182}{#idx133187}{#idx133188}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0023 - Chips&Technologies 82C811/82C812 - CONFIGURATION REGISTERS {#idx134343}

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 {#idx133688}{#idx133694}{#idx133704}{#idx133712}{#idx133716}{#idx133789}{#idx133794}{#idx133797}{#idx133822}{#idx133839}{#idx133843}{#idx133846}{#idx133849}{#idx133852}{#idx133863}{#idx133869}{#idx133874}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0024 - CHIPSET FROM PICO POWER, UMC or PCChips {#idx135193}{#idx135463}{#idx135543}{#idx135567}{#idx135584}

PORTIBM PC Portable (uses same BIOS as XT) 0024-0026 - PicoPower Vesuvius - V3-LS {#idx137482}{#idx137484}{#idx137631}{#idx137635}{#idx137646}{#idx137661}{#idx137664}{#idx137667}{#idx137670}

PORTIBM PC Portable (uses same BIOS as XT) 0040-005F - PIT - PROGRAMMABLE INTERVAL TIMER (8253, 8254) {#idx139072}

PORTIBM PC Portable (uses same BIOS as XT) 0060-006F - KEYBOARD CONTROLLER 804x (8041, 8042) (or PPI (8255) on PCIBM PC,XTIBM PC XT) {#idx139309}{#idx139341}{#idx139758}{#idx139999}{#idx140047}{#idx140051}

PORTIBM PC Portable (uses same BIOS as XT) 007C-007D - HP-Vectra - PIC 3 - PROGRAMMABLE INTERRUPT CONTROLLER (8259) {#idx140403}

PORTIBM PC Portable (uses same BIOS as XT) 0080 - MANUFACTURING DIAGNOSTICS PORTIBM PC Portable (uses same BIOS as XT) {#idx140498}{#idx140525}{#idx140534}{#idx140580}{#idx140607}{#idx140685}{#idx140707}{#idx140708}{#idx140734}{#idx140744}{#idx140787}{#idx140814}{#idx140817}{#idx140835}{#idx140855}{#idx140901}{#idx140942}{#idx140974}

PORTIBM PC Portable (uses same BIOS as XT) 00A0-00AF - PIC 2 - PROGRAMMABLE INTERRUPT CONTROLLER (8259A) {#idx141187}{#idx141211}{#idx141216}{#idx141220}{#idx141236}

PORTIBM PC Portable (uses same BIOS as XT) 00A8-00A9 - Via VT82C496G "Pluto" - CONFIGURATION REGISTERS {#idx141339}{#idx141341}{#idx141345}{#idx141347}{#idx141502}{#idx141507}{#idx141541}{#idx141581}{#idx141584}{#idx141586}{#idx141589}{#idx141591}{#idx141593}{#idx141597}{#idx141606}{#idx141609}{#idx141611}{#idx141616}{#idx141623}{#idx141624}{#idx141628}{#idx141632}{#idx141635}

PORTIBM PC Portable (uses same BIOS as XT) 00A8-00AC - Via VT82C570M "Apollo Master" - CONFIGURATION REGISTERS {#idx141754}{#idx141756}{#idx141759}{#idx141773}{#idx141838}

PORTIBM PC Portable (uses same BIOS as XT) 00B2 - Intel chipsets - Advanced Power Management Control {#idx141878}

PORTIBM PC Portable (uses same BIOS as XT) 00B3 - Intel chipsets - Advanced Power Management Status {#idx141899}

PORTIBM PC Portable (uses same BIOS as XT) 00E0-00E7 - MICROCHANNEL {#idx142055}

PORTIBM PC Portable (uses same BIOS as XT) 0140-014F - 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. (alternate Small Computer System Interface) adapter {#idx142441}{#idx142467}{#idx142485}{#idx142486}{#idx142495}{#idx142527}{#idx142532}{#idx142540}{#idx142564}{#idx142570}{#idx142572}{#idx142575}{#idx142579}{#idx142581}{#idx142587}{#idx142590}{#idx142591}{#idx142593}{#idx142597}{#idx142598}

PORTIBM PC Portable (uses same BIOS as XT) 01F0-01F7 - HDC 1 (1st Fixed Disk Controller) (ISA(Industry-Standard Architecture) The expansion bus used by the IBMInternational Busiuness Machines PCIBM PC/ATIBM PC AT. See also EISA., 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).) {#idx143079}{#idx143103}{#idx143147}{#idx143278}

PORTIBM PC Portable (uses same BIOS as XT) 02F8-02FF - serial port, same as 02E8, 03E8 and 03F8 (COM2) {#idx144648}

PORTIBM PC Portable (uses same BIOS as XT) 0300-031F - 3com Ethernet adapters (default address) {#idx144800}{#idx144801}{#idx144826}{#idx144827}{#idx144832}{#idx144838}{#idx144944}{#idx144946}{#idx144949}{#idx144951}{#idx144959}{#idx144963}{#idx144966}{#idx144969}{#idx144972}{#idx144975}{#idx144979}{#idx144986}{#idx145000}{#idx145003}{#idx145006}{#idx145010}{#idx145014}{#idx145017}{#idx145021}{#idx145025}{#idx145028}{#idx145031}{#idx145036}{#idx145038}{#idx145043}{#idx145045}{#idx145049}{#idx145051}{#idx145055}{#idx145066}{#idx145075}{#idx145080}{#idx145083}{#idx145088}{#idx145089}{#idx145093}{#idx145095}{#idx145099}{#idx145102}{#idx145108}{#idx145112}

PORTIBM PC Portable (uses same BIOS as XT) 0330-0331 - MPU-401 MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer. UART(Universal Asyncronous Receiver/Transmitter) A peripheral device which converts a sequence of bytes into a serial bit stream at a programmable rate, and vice versa. This device is what makes an RS-232 serial port function. See also USART. {#idx145527}{#idx145530}

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) {#idx145608}{#idx145622}{#idx145624}{#idx145644}{#idx145653}{#idx145663}{#idx145666}{#idx145671}{#idx145685}{#idx145693}{#idx145698}{#idx145715}{#idx145777}{#idx145813}{#idx145814}{#idx145817}{#idx145871}{#idx145921}{#idx145922}{#idx146100}

PORTIBM PC Portable (uses same BIOS as XT) 0340-034F - Gravis Ultra Sound by Advanced Gravis {#idx146198}

PORTIBM PC Portable (uses same BIOS as XT) 0340-0357 - RTCsee Real-Time Clock (1st Real Time Clock for XTIBM PC XT) {#idx146318}{#idx146323}

PORTIBM PC Portable (uses same BIOS as XT) 0340-035F - Adaptec AHA-152x 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 {#idx146362}{#idx146366}{#idx146379}{#idx146380}{#idx146381}{#idx146445}{#idx146462}{#idx146472}{#idx146482}{#idx146485}{#idx146499}{#idx146523}{#idx146530}{#idx146540}{#idx146541}{#idx146552}{#idx146560}{#idx146563}{#idx146574}

PORTIBM PC Portable (uses same BIOS as XT) 0360-036F - PCIBM PC network (ATIBM PC AT) {#idx146689}{#idx146700}{#idx146714}

PORTIBM PC Portable (uses same BIOS as XT) 0380-038C - 2nd SDLC (Synchronous Data Link Control) adapter {#idx147063}{#idx147075}{#idx147088}{#idx147106}{#idx147111}{#idx147116}{#idx147126}

PORTIBM PC Portable (uses same BIOS as XT) 0388-0389 - AdLib - MONO SOUND OUTPUT {#idx147182}{#idx147214}

PORTIBM PC Portable (uses same BIOS as XT) 03A0-03AF - 1st BSC (Binary Synchronous Communication) adapter {#idx147598}

PORTIBM PC Portable (uses same BIOS as XT) 03BC-03BF - PARALLEL PRINTER PORTIBM PC Portable (uses same BIOS as XT) (MDA(Monochrome Display Adapter) A text-only video adapter introduced together with the original IBMInternational Busiuness Machines PCIBM PC. See also CGAColor Graphics Adapter, HGC.'s LPT1) {#idx147928}

PORTIBM PC Portable (uses same BIOS as XT) 03C2-03CF - 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. - MISCELLANEOUS REGISTERS {#idx148128}

PORTIBM PC Portable (uses same BIOS as XT) 03D4-03D5 - COLOR VIDEO - CRT CONTROL REGISTERS {#idx148922}{#idx148924}{#idx148974}{#idx149008}{#idx149013}{#idx149302}

PORTIBM PC Portable (uses same BIOS as XT) 03D6-03D7 - CGAColor Graphics Adapter(Color/Graphics Adapter) One of the two video display boards introduced together with the original IBMInternational Busiuness Machines PCIBM PC. See also HGC, MDA. (Color Graphics Adapter) - MIRRORS OF 03D4/03D5 {#idx149805}{#idx150162}

PORTIBM PC Portable (uses same BIOS as XT) 03E0-03E1 - Cirrus Logic CL-PD6710/6722/6729 - PC-CARD HOST ADAPTER {#idx150635}{#idx150637}{#idx150734}{#idx150737}{#idx150769}{#idx150791}{#idx150795}{#idx150797}{#idx150837}

PORTIBM PC Portable (uses same BIOS as XT) 03F0-03F7 - FDC 1 (1st Floppy Disk Controller) second FDC at 0370 {#idx151407}{#idx151419}{#idx151554}{#idx151609}

PORTIBM PC Portable (uses same BIOS as XT) 03F8-03FF - Serial port (8250,8250A,8251,16450,16550,16550A,etc.) COM1 {#idx151720}{#idx151722}{#idx151723}{#idx151726}{#idx151746}{#idx151756}{#idx151762}{#idx151765}{#idx151768}{#idx151780}{#idx151782}{#idx151783}{#idx151787}{#idx151797}{#idx151820}{#idx151862}

PORTIBM PC Portable (uses same BIOS as XT) 0401-040B - 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). DMAsee Direct Memory Access Controller {#idx151899}{#idx151914}{#idx151919}

PORTIBM PC Portable (uses same BIOS as XT) 040A-043F - Intel 82378ZB embedded DMAsee Direct Memory Access controller {#idx151935}{#idx151948}

PORTIBM PC Portable (uses same BIOS as XT) 04D0-04D1 - 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). IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. control {#idx152053}{#idx152056}{#idx152059}{#idx152067}

PORTIBM PC Portable (uses same BIOS as XT) 0530-0537 - Windows Sound System ("WSS") (default address) {#idx152277}{#idx152288}{#idx152297}{#idx152314}{#idx152403}

PORTIBM PC Portable (uses same BIOS as XT) 0678-067A - Intel 82091AA - ECP-mode PARALLEL PORTIBM PC Portable (uses same BIOS as XT) {#idx152635}{#idx152643}{#idx152647}{#idx152654}{#idx152661}{#idx152675}{#idx152679}{#idx152682}

PORTIBM PC Portable (uses same BIOS as XT) 0AD6-0AD7 - Chips & Technologies PCIBM PC Video (82C9001A) - CONTROL REGISTERS {#idx153056}

PORTIBM PC Portable (uses same BIOS as XT) 0F8E-0F8F - OPTi "Vendetta" (82C750) CHIPSET - Audio Module Data Registers {#idx153700}

PORTIBM PC Portable (uses same BIOS as XT) 1C00-1CBF - Adaptec AIC-777x 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). 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. controller in 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). slot 1 {#idx154118}{#idx154122}{#idx154132}{#idx154133}{#idx154149}{#idx154155}{#idx154217}{#idx154256}{#idx154285}{#idx154292}{#idx154302}{#idx154319}{#idx154320}{#idx154323}{#idx154324}{#idx154325}{#idx154329}{#idx154340}{#idx154344}{#idx154347}{#idx154350}{#idx154352}{#idx154448}

PORTIBM PC Portable (uses same BIOS as XT) 2104 - XGA(Extended Graphics Array) Video Interrupt Enable {#idx154694}

PORTIBM PC Portable (uses same BIOS as XT) 2105 - XGA(Extended Graphics Array) Video Interrupt Status {#idx154702}

PORTIBM PC Portable (uses same BIOS as XT) 2107 - XGA(Extended Graphics Array) Video Virtual Memory Interrupt Status {#idx154720}

PORTIBM PC Portable (uses same BIOS as XT) 3510-3513 - ESDI(Enhanced Small Device Interface) A disk drive interface type which was briefly popular before IDE took over. An ESDI drive can transfer data between the drive and controller at 10, 15, or 20 megabits per second, which is faster than an MFM or RLL controller but slower than what is possible with an IDE or SCSI drive. See also IDE. primary harddisk controller {#idx155165}

PORTIBM PC Portable (uses same BIOS as XT) 3518-351B - ESDI(Enhanced Small Device Interface) A disk drive interface type which was briefly popular before IDE took over. An ESDI drive can transfer data between the drive and controller at 10, 15, or 20 megabits per second, which is faster than an MFM or RLL controller but slower than what is possible with an IDE or SCSI drive. See also IDE. secondary harddisk controller {#idx155191}

PORTIBM PC Portable (uses same BIOS as XT) 42E8 - 8514/A and hardware-compatible video cards {#idx155363}{#idx155365}{#idx155367}{#idx155369}{#idx155374}{#idx155380}{#idx155384}{#idx155386}{#idx155389}{#idx155392}

PORTIBM PC Portable (uses same BIOS as XT) xxxx - AMD-645 - Power Management Registers {#idx158166}{#idx158280}{#idx158320}

PORTIBM PC Portable (uses same BIOS as XT) xxxx - AMD-645 - USBsee Universal Serial Bus {#idx158362}

PORTIBM PC Portable (uses same BIOS as XT) xxxx - Ensoniq AudioPCI ES1370 - CONTROL REGISTERS {#idx158377}{#idx158378}{#idx158407}{#idx158422}{#idx158440}{#idx158444}{#idx158450}{#idx158454}{#idx158459}{#idx158464}{#idx158467}{#idx158475}{#idx158479}{#idx158521}{#idx158523}{#idx158527}{#idx158590}{#idx158591}{#idx158650}{#idx158658}{#idx158664}{#idx158675}{#idx158678}{#idx158683}{#idx158689}{#idx158746}{#idx158778}{#idx158780}{#idx158785}{#idx158787}

PORTIBM PC Portable (uses same BIOS as XT) xxxx - Future Domain TMC-3260 PCI 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 {#idx157827}{#idx157910}{#idx157914}{#idx157924}{#idx157925}{#idx157944}{#idx157950}{#idx158723}

Ralf Brown Programs {#idx176904}{#idx176912}{#idx176914}{#idx176978}{#idx176987}

System-management mode {#idx166622}

Volunteers Needed {#idx177154}