RBIL61 - CLOCK

86 Bugs List {#idx176114}{#idx176118}{#idx176123}{#idx176128}{#idx176149}{#idx176170}{#idx176233}{#idx176235}{#idx176237}{#idx176239}{#idx176245}{#idx176248}{#idx176357}{#idx176406}{#idx176413}{#idx176422}{#idx176428}{#idx176430}{#idx176433}{#idx176443}{#idx176463}{#idx176470}{#idx176471}{#idx176544}{#idx176599}{#idx176609}{#idx176610}{#idx176611}{#idx176612}{#idx176614}{#idx176624}{#idx176651}{#idx176654}{#idx176661}{#idx176662}{#idx176665}{#idx176667}{#idx176669}{#idx176670}{#idx176671}{#idx176672}{#idx176674}{#idx176677}{#idx176682}{#idx176687}{#idx176688}{#idx176689}{#idx176690}{#idx176693}{#idx176695}{#idx176823}{#idx176900}{#idx176907}{#idx176922}{#idx176945}

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 {#idx160258}{#idx160533}{#idx160637}

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) {#idx168241}{#idx168246}{#idx168248}

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) {#idx168258}{#idx168267}{#idx168272}{#idx168274}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 0Eh - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. PS/2IBM PS/2, any model - DIAGNOSTIC STATUS BYTE {#idx168329}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 33h - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. - INFORMATION FLAG {#idx169238}{#idx169240}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 41h - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. - WAIT STATE CONFIGURATION {#idx169530}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 46h - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. - BUS WAIT STATES {#idx169599}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 4Ch - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. (Saturn) - PARALLEL PORTIBM PC Portable (uses same BIOS as XT) {#idx169668}{#idx169672}{#idx169675}{#idx169677}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 5Ch - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. (PicoPower) - LOW-SPEED CLOCK {#idx169854}{#idx169858}{#idx169861}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 5Dh - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. (PicoPower) - DOZE MODE {#idx169873}{#idx169879}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 7Dh - AMD-645 Clock - DATE ALARM {#idx170148}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 7Eh - AMD-645 Clock - MONTH ALARM {#idx170155}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 7Fh - AMD-645 Clock - CENTURY {#idx170165}

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. 18h/02h - Raytheon TMC2361 - RESET CONTROL REGISTER {#idx170329}

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/31h - ITT VPX 32xx - Luma/Chroma Matching Delay {#idx171036}

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 {#idx171117}

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/F0h - ITT VPX 32xx - Output FIFO {#idx171188}

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/F1h - ITT VPX 32xx - Output Multiplexor {#idx171195}{#idx171196}{#idx171198}{#idx171199}{#idx171203}

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/F2h - ITT VPX 32xx - Output Enable {#idx171220}

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. 9Ch/0Eh - Philips SAA7110(A) ONE-CHIP FRONT-END - I/O AND CLOCK CONTROL {#idx172069}{#idx172076}{#idx172079}

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. 9Ch/33h - Philips SAA7110(A) ONE-CHIP FRONT-END - MIXER CONTROL #4 {#idx172268}{#idx172269}

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. A0h - EEPROM (Xicor X24C01A, etc.) {#idx172310}{#idx172344}{#idx172352}{#idx172375}{#idx172379}{#idx172396}{#idx172414}

INT 02 - external hardware - NON-MASKABLE INTERRUPT {callout or callback} {#idx140}

INT 08 - IRQ0 - SYSTEM TIMER {callout or callback} {#idx577}

INT 09 - IRQ1 - KEYBOARD DATA READY {callout or callback} {#idx666}{#idx671}

INT 0F - HP 95LX - REAL-TIME CLOCK {callout or callback} {#idx1202}

INT 10 - Chips & Technologies '64300' 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 CLOCK SPEED {#idx5375}{#idx5378}{#idx5380}

INT 10 - Chips & Technologies '64300' 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 REFRESH RATE {#idx5402}

INT 10 - Chips & Technologies 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. - AUTO EMULATION CONTROL {#idx5324}{#idx5326}{#idx5328}{#idx5331}{#idx5335}{#idx5337}{#idx5339}{#idx5342}{#idx5345}{#idx5348}{#idx5349}{#idx5354}

INT 10 - Chips & Technologies 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. - GET LAPTOP DISPLAY STATUS {#idx5443}

INT 10 - SOLLEX SuperVGA - GET EXTENSIONS INFO {#idx5975}{#idx5977}

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 SuperVGA MODE INFORMATION {#idx4314}

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. - SET SuperVGA VIDEO MODE {#idx4380}

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. v3.0 - GET NEAREST PIXEL CLOCK {#idx4575}{#idx4577}

INT 10 - VIDEO - ATI 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. Wonder Super Switch - INSTALLATION CHECK {#idx5230}

INT 10 - VIDEO - SET VIDEO MODE {#idx1258}{#idx1281}

INT 14 - COURIERS.COM - START OUTPUT {#idx14578}

INT 14 - DimVGA v2.0+ - GET TIME-OUT PERIOD {#idx14862}

INT 14 - DimVGA v2.0+ - SET TIME-OUT (DIMMING/BLANKING) PERIOD {#idx14851}

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. - ENABLE/DISABLE FLOW CONTROL {#idx12818}

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. - EXTENDED ^C/^K CHECKING AND TRANSMIT ON/OFF {#idx12864}

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 {#idx12411}

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 CHARACTER TO SCREEN USING 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. SUPPORT ROUTINES {#idx13014}

INT 14 - I1541 - RECEIVE A BYTE FROM A DEVICE {#idx13805}

INT 15 - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. PCI BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. - GET CPU(Central Processing Unit) The microprocessor which executes programs on your computer. TYPE AND SPEED {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.} {#idx23734}{#idx23739}

INT 15 - Amstrad PC1512 - WRITE DATA TO NON-VOLATILE RAM(Random Access Memory) See also DRAM, SRAM. {#idx15481}

INT 15 - APM SL Enhanced v1.0 - GET CPU(Central Processing Unit) The microprocessor which executes programs on your computer. SPEED MODE {#idx19816}

INT 15 - APM SL Enhanced v1.0 - SET CPU(Central Processing Unit) The microprocessor which executes programs on your computer. SPEED MODE {#idx19820}

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) {#idx20669}

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) {#idx20847}

INT 15 - DESQview v2.00+ - "NEWPROC" - START NEW APPLICATION IN NEW PROCESS {#idx16616}

INT 15 - HP 100LX/200LX - ADJUST SYSTEM TIME {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.} {#idx19032}

INT 15 - HUNTER 16 - SET SYSTEM CLOCK SPEED {#idx20195}

INT 15 - Olivetti Quaderno - READ LCD(Liquid Crystal Display) {#idx18820}

INT 15 - Olivetti Quaderno - WRITE LCD(Liquid Crystal Display) {#idx18836}

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 INITIALIZATION TABLE (PSIBM PS/2, any model) {#idx15728}

INT 15 - Tandy 1000SL/TL - READ FROM EEPROM {#idx20427}

INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - "PAUSE" - GIVE UP CPU(Central Processing Unit) The microprocessor which executes programs on your computer. TIME {#idx16040}

INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - "SOUND" - MAKE TONE {#idx16403}

INT 16 - FAKEY.COM - PLAY TONES {#idx26352}

INT 16 - Shamrock Software EMAIL - GET ELAPSED ONLINE TIME AND MAXIMUM TIME {#idx25642}{#idx25648}

INT 16 - Shamrock Software EMAIL - SPECIFY COMMAND-WORD FOR USER FUNCTION {#idx25666}

INT 17 - Alloy NTNX,MW386 - SET PRINT BREAK TIMEOUT {#idx29535}

INT 17 - PCIBM PC Magazine PCSpool - GET CONTROL BLOCK ADDRESS {#idx29637}

INT 17 - Shamrock Software NET.24 v3.11+ - RECEIVE BLOCK, NO HANDSHAKE {#idx29052}

INT 17 - T2PS v1.0 - SET PARAMETERS {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.} {#idx29243}

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.} {#idx38969}

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. {#idx32983}{#idx32987}{#idx32989}{#idx33020}

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) {#idx35418}{#idx35643}{#idx35696}{#idx35700}{#idx35762}{#idx35879}{#idx36031}{#idx36062}{#idx36067}{#idx36156}{#idx36288}{#idx36514}{#idx36579}{#idx36581}{#idx36608}{#idx36610}{#idx36617}{#idx36688}{#idx36715}{#idx36845}{#idx36847}{#idx36849}{#idx36851}{#idx36853}{#idx36854}{#idx36856}{#idx36858}{#idx37002}{#idx37116}{#idx37131}{#idx37133}{#idx37135}{#idx37141}{#idx37162}{#idx37204}{#idx37272}{#idx37303}{#idx37363}{#idx37365}{#idx37455}{#idx37486}{#idx37497}{#idx37500}{#idx37502}{#idx37504}{#idx37506}{#idx37508}{#idx37510}{#idx37512}{#idx37515}{#idx37517}{#idx37519}{#idx37521}{#idx37523}{#idx37525}{#idx37592}{#idx37815}{#idx37946}{#idx37950}{#idx37955}{#idx38022}{#idx38050}{#idx38052}{#idx38055}{#idx38058}{#idx38060}{#idx38063}{#idx38181}{#idx38183}{#idx38185}{#idx38233}{#idx38256}{#idx38275}{#idx38281}{#idx38466}{#idx38471}

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) {#idx33616}{#idx33617}{#idx34131}{#idx34132}

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) {#idx34497}{#idx34531}{#idx34673}{#idx34783}{#idx34801}{#idx34821}{#idx34839}{#idx34903}{#idx34905}{#idx34907}{#idx34910}{#idx34916}{#idx34918}{#idx34922}{#idx35167}{#idx35187}{#idx35200}{#idx35203}{#idx35206}{#idx35212}{#idx35214}{#idx35318}{#idx35322}

INT 1A - RighTime v1.1 - ENABLE {#idx39104}

INT 1A - RighTime v1.1 - PERMANENTLY DISABLE {#idx39134}

INT 1A - RighTime v1.1 - TEMPORARILY DISABLE {#idx39096}

INT 1A - SND - PAUSE {#idx39157}

INT 1A - Sperry PCIBM PC - GET REAL-TIME CLOCK DATE {#idx30578}

INT 1A - Sperry PCIBM PC - SET REAL-TIME CLOCK DATE {#idx30620}

INT 1A - Tandy 2500, Tandy 1000L series - START PLAYING DIGITAL SOUND {#idx31196}

INT 1A - TIME - CANCEL ALARM (ATIBM PC AT,XT286IBM PC XT/286,PSIBM PS/2, any model) {#idx30674}

INT 1A - TIME - GET REAL-TIME CLOCK DATE (ATIBM PC AT,XT286IBM PC XT/286,PSIBM PS/2, any model) {#idx30513}

INT 1A - TIME - GET REAL-TIME CLOCK TIME (ATIBM PC AT,XT286IBM PC XT/286,PSIBM PS/2, any model) {#idx30415}{#idx30439}

INT 1A - TIME - GET SYSTEM TIME {#idx30370}{#idx30375}

INT 1A - TIME - INITIALIZE REAL-TIME CLOCK {#idx30765}

INT 1A - TIME - SET ALARM (ATIBM PC AT,XT286IBM PC XT/286,PSIBM PS/2, any model) {#idx30645}{#idx30653}

INT 1A - TIME - SET REAL-TIME CLOCK DATE (ATIBM PC AT,XT286IBM PC XT/286,PSIBM PS/2, any model) {#idx30593}

INT 1A - TIME - SET REAL-TIME CLOCK TIME (ATIBM PC AT,XT286IBM PC XT/286,PSIBM PS/2, any model) {#idx30471}

INT 1A - TIME - SET RTCsee Real-Time Clock DATE/TIME ACTIVATED POWER-ON MODE (IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911.) {#idx30746}

INT 1A - TIME - SET SYSTEM TIME {#idx30404}{#idx30409}

INT 1C - TIME - SYSTEM TIMER TICK {#idx39213}

INT 1E - SYSTEM DATA - DISKETTE PARAMETERS {#idx39299}

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} {#idx39627}

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} {#idx39859}

INT 21 - 10NET v5.0 - GET LOCAL 10NET CONFIGURATION TABLE {#idx53552}

INT 21 - DOS 1+ - GET SYSTEM TIME {#idx43990}

INT 21 - DOS 1+ - SET SYSTEM DATE {#idx43626}{#idx43630}

INT 21 - DOS 1+ - SET SYSTEM TIME {#idx44031}

INT 21 - DOS 2+ - GET COUNTRY-SPECIFIC INFORMATION {#idx44933}

INT 21 - DOS 2+ - IOCTL - GET DEVICE INFORMATION {#idx46000}

INT 21 - DOS 2+ - IOCTL - GET INPUT STATUS {#idx48655}

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.} {#idx51124}{#idx51125}{#idx51730}

INT 21 - DOS 3.0+ internal - GET ADDRESS OF DOS SWAPPABLE DATA AREA {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.} {#idx53152}{#idx53222}

INT 21 - DOS 4.x only - internal - GET DOS SWAPPABLE DATA AREAS {obsolete, undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx53399}

INT 21 - European MS-DOS 4.0 - SLEEP {#idx56968}

INT 21 - LANtastic - GET REDIRECTED PRINTER TIMEOUT {#idx55064}

INT 21 - LANtastic - SET REDIRECTED PRINTER TIMEOUT {#idx55075}

INT 21 - LANtastic v3+ - POP UP LAST RECEIVED MESSAGE {#idx54692}

INT 21 - MS-DOS 7 (Windows95) - GET/SET INTERNATIONALIZATION INFORMATION {#idx56021}

INT 21 - Novell NetWare - FILE SERVER - GET BINDERY OBJECT DISK SPACE LEFT {#idx62414}

INT 21 - Novell NetWare - FILE SERVER - GET CONNECTION'S USAGE STATISTICS {#idx62388}

INT 21 - Novell NetWare - FILE SERVER - GET DISK CACHE STATISTICS {#idx61862}

INT 21 - Novell NetWare - FILE SERVER - GET DISK CHANNEL STATISTICS {#idx62017}

INT 21 - Novell NetWare - FILE SERVER - GET DRIVE MAPPING TABLE {#idx61920}

INT 21 - Novell NetWare - FILE SERVER - GET FILE SERVER LAN I/O STATISTICS {#idx62444}

INT 21 - Novell NetWare - FILE SERVER - GET FILE SERVER MISC INFORMATION {#idx62482}

INT 21 - Novell NetWare - FILE SERVER - GET FILE SYSTEM STATISTICS {#idx61776}

INT 21 - Novell NetWare - FILE SERVER - GET PHYSICAL DISK STATISTICS {#idx61976}

INT 21 - Novell NetWare - FILE SERVER - GET TRANSACTION TRACKING STATISTICS {#idx61816}

INT 21 - Novell NetWare - GET CONNECTION'S USAGE STATISTICS {#idx67360}

INT 21 - Novell NetWare - GET DISK CACHE STATISTICS {#idx66977}

INT 21 - Novell NetWare - GET DISK CHANNEL STATISTICS {#idx67117}

INT 21 - Novell NetWare - GET DRIVE MAPPING TABLE {#idx67027}

INT 21 - Novell NetWare - GET FILE SERVER EXTENDED MISC INFORMATION {#idx67784}

INT 21 - Novell NetWare - GET FILE SERVER LAN I/O STATISTICS {#idx67407}

INT 21 - Novell NetWare - GET FILE SERVER MISC INFORMATION {#idx67441}

INT 21 - Novell NetWare - GET FILE SYSTEM STATISTICS {#idx66897}

INT 21 - Novell NetWare - GET OBJECT'S REMAINING DISK SPACE {#idx67382}

INT 21 - Novell NetWare - GET PHYSICAL DISK STATISTICS {#idx67080}

INT 21 - Novell NetWare - GET TRANSACTION TRACKING STATISTICS {#idx66933}

INT 21 - Novell NetWare - GET VOLUME EXTENDED INFORMATION {#idx67825}

INT 21 - Novell NetWare - LOCK FILE SET {#idx70285}

INT 21 - Novell NetWare - LOCK FILE SET (OLD) {#idx63974}

INT 21 - Novell NetWare - LOCK LOGICAL RECORD SET {#idx70301}

INT 21 - Novell NetWare - LOCK PHYSICAL RECORD SET {#idx70318}

INT 21 - Novell NetWare - LOG FILE {#idx70267}

INT 21 - Novell NetWare - PRINT SERVICES - GET DEFAULT CAPTURE FLAGS {#idx57594}

INT 21 - Novell NetWare - WAIT ON SEMAPHORE {#idx70373}

INT 21 - Novell NetWare - WORKSTATION - GET CONNECTION ID TABLE {#idx63127}{#idx63137}

INT 21 - Novell NetWare v2.2+ - GET EXTENDED VOLUME INFORMATION {#idx65109}

INT 21 - SMARTDRV.SYS v3.x only - IOCTL - GET CACHE STATUS {#idx46324}

INT 21 - TopWare Network OS v5.10+ - GET CURRENT AUTOPRINT TIME {#idx71753}

INT 21 - TopWare Network OS v5.10+ - SET AUTOPRINT TIME {#idx71762}

INT 2A - PCIBM PC/TCP(Transmission Control Protocol) A higher level (session layer) of the TCP/IP protocol suite. See also IP, TCP/IP. PREDIR.EXE - GET PRINT JOB TERMINATION CONFIGURATION {#idx73137}

INT 2A - PCIBM PC/TCP(Transmission Control Protocol) A higher level (session layer) of the TCP/IP protocol suite. See also IP, TCP/IP. PREDIR.EXE - SET PRINT JOB TERMINATION CONFIGURATION {#idx73120}

INT 2D - Burnout Plus v3.00 - GET STATE/CONTROL INFORMATION {#idx74277}{#idx74290}

INT 2F - 4DOS v4.0+ - KSTACK.COM - PLACE KEYSTROKES INTO KEYSTACK {#idx93708}

INT 2F - ANSIPLUS v3.01+ - GET/SET ANSIPLUS SCREEN SAVER BLANKING TIME {#idx82238}

INT 2F - DIMWIT - GET CONFIGURATION DATA {#idx91351}

INT 2F - DOS 4.0+ DRIVER.SYS support - GET DRIVE DATA TABLE LIST {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}{#idx75882}{#idx75918}

INT 2F - Explosiv v2.00+ - INSTALLATION CHECK {#idx91791}

INT 2F - Explosiv v2.x - GET ANIMATION DELAY FACTOR {#idx91824}

INT 2F - Explosiv v2.x - SET BLANKING INTERVAL {#idx91838}

INT 2F - Frank Kintrup 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. Utilities - CLOCK - DISABLE DISPLAY UPDATE {#idx91373}

INT 2F - Frank Kintrup 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. Utilities - CLOCK - ENABLE DISPLAY UPDATE {#idx91428}

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. Windows - SOUND BEEPER {#idx83150}

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.} {#idx84017}

INT 2F - Microsoft Profiler (PROF.COM/VPROD.386) - START PROFILING {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.} {#idx84028}

INT 2F - Microsoft Profiler (PROF.COM/VPROD.386) - STOP PROFILING {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.} {#idx84039}

INT 2F - MS Windows - VTD - 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 {#idx80295}

INT 2F - MS-DOS 7 kernel - GET ??? {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.} {#idx79762}

INT 2F - NDOS v4.0+ - KSTACK.COM - PLACE KEYSTROKES INTO KEYSTACK {#idx95029}

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.} {#idx82680}{#idx82735}

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 {#idx87417}

INT 2F - PRINDIR v9.0 - SET FLUSH DELAY {#idx88011}

INT 2F - SilverNET - GET RUNTIME PARAMETER {#idx85343}

INT 2F - TesSeRact RAM-RESIDENT PROGRAM INTERFACE {#idx85669}

INT 2F - WANG_ER.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.} {#idx91269}

INT 2F - Windows95 - TITLE - SET APPLICATION TITLE {#idx81686}

INT 2F - Windows95 - TITLE - SET VIRTUAL MACHINE TITLE {#idx81704}

INT 32 - NOISE.SYS v0.53+ - GET FLAGS {#idx98574}

INT 4A - SYSTEM - USER ALARM HANDLER {callout or callback} {#idx101342}

INT 4C - TI Professional PCIBM PC - CLOCK/ANALOG INTERFACE {#idx101781}

INT 4E - TI Professional PCIBM PC - TIME-OF-DAY CLOCK - GET 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 AND TIME {#idx102082}

INT 4E - TI Professional PCIBM PC - TIME-OF-DAY CLOCK - SET 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. DATE {#idx102063}

INT 4E - TI Professional PCIBM PC - TIME-OF-DAY CLOCK - SET 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. TIME {#idx102073}

INT 4F - TI Professional PCIBM PC - SYSTEM CONFIGURATION CALL {#idx102138}

INT 55 - TI Professional PCIBM PC - RESERVED FOR FUTURE USE {#idx102966}

INT 58 - TI Professional PCIBM PC - SYSTEM TIMER 25ms HOOK {callout or callback} {#idx103116}

INT 5A - TI Professional PCIBM PC - SYSTEM TIMER 100ms HOOK {#idx103227}

INT 5F - HP 95LX/100LX/200LX GRAPHICS PRIMITIVES - WRITE TEXT {#idx103914}

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. {#idx104256}

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. v1.10+ - EXTENDED FUNC - FETCH RAW BYTES RECEIVED {#idx107202}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVCE "M_GET_SETTINGS_ADDR" {partially documented} {#idx105759}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_ALARM" {partially documented} {#idx105588}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_DAY_TRIGGER" {partially documented} {#idx105826}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_DTINFO" {partially documented} {#idx105544}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_GET_SETTINGS" {partially documented} {#idx105655}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_GET_SW" {partially documented} {#idx105619}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_GET_TIMER" {partially documented} {#idx105734}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_GETDTM" {partially documented} {#idx105555}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_POST_TIME" {partially documented} {#idx105814}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_SET_SETTINGS" {partially documented} {#idx105693}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_SETDTM" {partially documented} {#idx105566}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_START_SW" {partially documented} {#idx105607}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_START_TIMER" {partially documented} {#idx105705}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_STOP_SW" {partially documented} {#idx105630}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_STOP_TIMER" {partially documented} {#idx105720}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_TELL_ANYTIME" {partially documented} {#idx105748}

INT 60 - HP 95LX System Manager - CLOCK/CALENDAR SERVICE "M_XALARM" {partially documented} {#idx105577}

INT 60 - TI Professional PCIBM PC - SYSTEM ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. DATA AREA POINTER (NOT A VECTOR!) {#idx104060}

INT 61 - Atari Portfolio - GET/SET CLOCK TICK SPEED {#idx109899}{#idx109906}

INT 62 - FGDRIVER v4.02 - "FG_GETCLOCK" - GET CLOCK TICKS SINCE MIDNIGHT {partially documented} {#idx111588}{#idx111592}

INT 62 - FGDRIVER v4.02 - "FG_MEASURE" - GET DELAY UNITS PER CLOCK TICK {partially documented} {#idx112143}{#idx112147}

INT 62 - FGDRIVER v4.02 - "FG_SOUND" - MAKE SOUND FOR SPECIFIED DURATION {partially documented} {#idx112971}

INT 62 - FGDRIVER v4.02 - "FG_SOUNDS" - PLAY SOUNDS IN BACKGROUND {partially documented} {#idx112991}

INT 62 - FGDRIVER v4.02 - "FG_VOICE" - START SOUND {partially documented} {#idx113299}

INT 62 - FGDRIVER v4.02 - "FG_WAITFOR" - DELAY FOR SPECIFIED DURATION {partially documented} {#idx113328}

INT 64 - Extended Batch Language v3.14+ {#idx114594}

INT 66 - MIDPAK - GET MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer. CLOCK {#idx115503}{#idx115504}

INT 67 - CUCKOO.COM - INSTALLATION CHECK {#idx115753}

INT 6C - system resume vector (CONVERTIBLE) {#idx119301}

INT 6D - Matrox Multiple Monitor Support v1.0 - GET VIDEO MODE 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.} {#idx119422}

INT 6F - 10NET v5.0 - GET SHARED DEVICE ENTRY {#idx121756}

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} {#idx121825}{#idx121827}

INT 70 - VIRUS - "Stupid" - ORIGINAL INT 21h VECTOR {#idx121854}

INT 7A - Novell NetWare - IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. Driver - GET INTERVAL MARKER {#idx122818}

INT 7A - Novell NetWare - IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. Driver - GET LOCAL TARGET {#idx122676}

INT 7A - Novell NetWare - IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. Driver - SCHEDULE IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. EVENT {#idx122792}

INT 7A - Novell NetWare - IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. Driver - SEND PACKET {#idx122775}

INT 7D - YTERM 1.4 - CLOCK 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.} {#idx124108}

INT 7F - G8BPQ v4.00+ - HOST MODE - GET TIME MARKER {#idx125344}

INT 80 - SoundBlasterA common sound card developed by Creative Labs. SBFM driver - SET DRIVER CLOCK RATE {#idx126497}{#idx126501}

INT 80 - SoundBlasterA common sound card developed by Creative Labs. SBFM driver - SET SYSTEM CLOCK RATE {#idx126489}{#idx126494}

INT D4 - PC-MOS/386 v3.0+ - GET TASK CONTROL BLOCK {#idx128903}

INT E0 - 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., Concurrent CP/M(Control Program for Microcomputers) An early operating system for micros based on the 8-bit Intel 8080 CPU (and later the compatible 8085 and Zilog Z80 CPUs). MSDOS version 1.0 was essentially a clone of CP/M for the Intel 8086., DR Multiuser DOS - FUNCTION CALLS {#idx129996}

INT F4 - DoubleDOS - GIVE UP REST OF CURRENT CLOCK TICK AND ALL OF NEXT TICK {#idx132570}

MEM 0040h:0012h - MCA - MANUFACTURING TEST {#idx161284}

MEM 0040h:0040h - DISKETTE - MOTOR TURN-OFF TIMEOUT COUNT {#idx161451}

MEM 0040h:0092h - Olivetti Quaderno - HARD DISK POWERDOWN COUNTDOWN CLOCK TICKS {#idx162294}

MEM 0070h:016Ch - DR-DOS 7.02-7.03 - "DEVNO" AUX/PRN PORTIBM PC Portable (uses same BIOS as XT) ASSIGNMENTS {#idx163083}

MEM A000h:FF00h - S3 - MEM-MAPPED "SCENIC HIGHWAY" (Local Periph. Bus) ACCESS {#idx163766}{#idx163794}{#idx163832}{#idx163835}{#idx163847}

MEM FEE0h:03E0h - Pentium + - LOCAL APIC - TIMER DIVIDE CONFIGURATION REGISTER {#idx164976}

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:0010h - Pentium, Pentium Pro - TIME STAMP COUNTER REGISTER {#idx165316}

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 {#idx165340}{#idx165345}{#idx165367}{#idx165393}{#idx165394}{#idx165395}{#idx165398}{#idx165410}{#idx165411}{#idx165412}{#idx165415}{#idx165423}{#idx165433}

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:002Ah - Pentium Pro/II - "EBL_CR_POWERON" {#idx165492}{#idx165497}{#idx165514}

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:0083h - AMD Am5k86 (AMD-K5) - HARDWARE CONFIGURATION REGISTER {#idx165630}

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 {#idx166010}

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:01E0h - Pentium Pro - "ROB_CR_BKUPTMPDR6" {#idx166135}

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 {#idx166380}

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:1002h - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. 386/486 SLC - PROCESSOR OPERATION REGISTER {#idx166417}

Notes {#idx168073}{#idx168083}{#idx168093}{#idx168143}{#idx168149}{#idx168193}{#idx168197}{#idx168302}{#idx170205}

Opcodes List {#idx172679}{#idx172687}{#idx172695}{#idx172699}{#idx172717}{#idx172741}{#idx172751}{#idx172780}{#idx172810}{#idx172845}{#idx172856}{#idx172867}{#idx172870}{#idx172882}{#idx172884}{#idx172889}{#idx172900}{#idx172906}{#idx172911}{#idx173120}{#idx173166}{#idx173172}{#idx173175}{#idx173177}{#idx173184}{#idx173191}{#idx173197}{#idx173203}{#idx173207}{#idx173208}{#idx173211}{#idx173213}{#idx173214}{#idx173217}{#idx173220}{#idx173223}{#idx173226}{#idx173229}{#idx173231}{#idx173238}{#idx173268}{#idx173275}{#idx173282}{#idx173297}{#idx173310}{#idx173315}{#idx173330}{#idx173339}{#idx173343}{#idx173363}{#idx173375}{#idx173446}{#idx173450}{#idx173462}{#idx173477}{#idx174303}{#idx174327}{#idx174338}{#idx174340}{#idx174344}{#idx174347}{#idx174361}{#idx174379}{#idx174389}{#idx174417}{#idx174418}{#idx174422}{#idx174427}{#idx174431}{#idx174466}{#idx174483}{#idx174491}{#idx174495}{#idx174499}{#idx174522}{#idx174529}{#idx174539}{#idx174542}{#idx174549}{#idx174552}{#idx174555}{#idx174605}{#idx174622}{#idx174642}{#idx174659}{#idx174670}{#idx174672}{#idx174674}{#idx174676}{#idx174691}{#idx174697}{#idx174700}{#idx174703}{#idx174708}{#idx174717}{#idx174728}{#idx174762}{#idx174827}{#idx174839}{#idx174842}{#idx174871}{#idx174935}{#idx174998}{#idx175012}{#idx175075}{#idx175108}{#idx175166}{#idx175307}{#idx175310}{#idx175311}{#idx175313}{#idx175319}{#idx175361}{#idx175372}{#idx175412}{#idx175830}

PORTIBM PC Portable (uses same BIOS as XT) 0000-001F - DMAsee Direct Memory Access 1 - FIRST DIRECT MEMORY ACCESS CONTROLLER (8237) {#idx133170}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0023 - CHIP SET DATA {#idx133595}{#idx133615}{#idx134139}{#idx134178}{#idx134196}{#idx134235}{#idx134339}{#idx134340}{#idx134342}{#idx134347}{#idx134379}{#idx134665}{#idx134743}{#idx134789}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0023 - Chips&Technologies 82C811/82C812 - CONFIGURATION REGISTERS {#idx134410}{#idx134415}{#idx134416}{#idx134421}{#idx134436}{#idx134469}{#idx134477}{#idx134483}{#idx134501}{#idx134507}{#idx134547}{#idx134548}{#idx134553}

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 {#idx133800}{#idx133820}{#idx133861}{#idx133895}{#idx133931}{#idx133990}{#idx134063}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0024 - CHIPSET FROM PICO POWER, UMC or PCChips {#idx134928}{#idx135013}{#idx135172}{#idx135185}{#idx135200}{#idx135203}{#idx135204}{#idx135308}{#idx135366}{#idx135378}{#idx135435}{#idx135493}{#idx135505}{#idx135506}{#idx135511}{#idx135513}{#idx135515}{#idx135525}{#idx135528}{#idx135530}{#idx135546}{#idx135591}{#idx135690}{#idx135694}{#idx135698}{#idx135702}{#idx135705}{#idx135708}{#idx135738}{#idx135762}{#idx135764}{#idx135765}{#idx135777}{#idx135779}{#idx135780}{#idx135786}{#idx135789}{#idx135793}{#idx135795}{#idx135803}{#idx135806}{#idx135808}{#idx135846}{#idx135851}{#idx136115}{#idx136148}{#idx136333}{#idx136375}{#idx136377}{#idx136380}{#idx136394}{#idx136398}{#idx136399}{#idx136404}{#idx136431}{#idx136432}{#idx136433}{#idx136434}{#idx136496}{#idx136504}{#idx136531}{#idx136545}{#idx136552}{#idx136598}{#idx136690}{#idx136701}{#idx136707}{#idx136807}{#idx136847}{#idx137128}{#idx137164}{#idx137165}{#idx137166}{#idx137167}{#idx137432}

PORTIBM PC Portable (uses same BIOS as XT) 0024-0026 - PicoPower Vesuvius - V3-LS {#idx137861}

PORTIBM PC Portable (uses same BIOS as XT) 0024-0027 - PicoPower Vesuvius - V1-LS {#idx137974}{#idx138020}{#idx138023}{#idx138026}{#idx138029}{#idx138032}{#idx138120}{#idx138127}{#idx138243}{#idx138359}{#idx138365}{#idx138372}{#idx138374}{#idx138377}{#idx138382}{#idx138384}{#idx138390}{#idx138393}{#idx138397}{#idx138400}{#idx138407}{#idx138413}{#idx138417}{#idx138684}{#idx138711}{#idx138723}{#idx138744}{#idx138745}{#idx138746}{#idx138893}

PORTIBM PC Portable (uses same BIOS as XT) 0024-0029 - HEADLAND HTK340 SHASTA 386/486 CHIPSET {#idx138903}{#idx138951}

PORTIBM PC Portable (uses same BIOS as XT) 0040-005F - PIT - PROGRAMMABLE INTERVAL TIMER (8253, 8254) {#idx139160}{#idx139166}{#idx139190}

PORTIBM PC Portable (uses same BIOS as XT) 0060-006F - KEYBOARD CONTROLLER 804x (8041, 8042) (or PPI (8255) on PCIBM PC,XTIBM PC XT) {#idx139465}{#idx139678}{#idx139692}{#idx139845}{#idx140121}{#idx140194}{#idx140197}{#idx140233}{#idx140246}{#idx140260}

PORTIBM PC Portable (uses same BIOS as XT) 0070-007F - CMOS RAMA small amount (typically 64 or 128 bytes) of memory in the system's real-time clock chip that is preserved by the clock's battery and is used for storing configuration information. See also Real-Time Clock./RTCsee Real-Time Clock (REAL TIME CLOCK) {#idx140395}{#idx140397}{#idx140421}

PORTIBM PC Portable (uses same BIOS as XT) 0080 - MANUFACTURING DIAGNOSTICS PORTIBM PC Portable (uses same BIOS as XT) {#idx140718}{#idx140914}{#idx140981}{#idx141028}{#idx141116}

PORTIBM PC Portable (uses same BIOS as XT) 00A0-00AF - PIC 2 - PROGRAMMABLE INTERRUPT CONTROLLER (8259A) {#idx141412}

PORTIBM PC Portable (uses same BIOS as XT) 00A8-00A9 - Via VT82C496G "Pluto" - CONFIGURATION REGISTERS {#idx141471}{#idx141477}{#idx141494}{#idx141504}{#idx141542}{#idx141555}{#idx141557}{#idx141560}{#idx141564}{#idx141633}{#idx141639}{#idx141644}{#idx141647}{#idx141648}{#idx141688}{#idx141691}{#idx141724}{#idx141726}{#idx141730}{#idx141754}{#idx141760}{#idx141790}{#idx141795}{#idx141857}{#idx141859}{#idx141863}{#idx141865}{#idx141870}{#idx141872}{#idx141876}

PORTIBM PC Portable (uses same BIOS as XT) 00A8-00AC - Via VT82C570M "Apollo Master" - CONFIGURATION REGISTERS {#idx141889}{#idx141895}{#idx141916}{#idx141998}

PORTIBM PC Portable (uses same BIOS as XT) 00E0-00EF - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. PSIBM PS/2, any model/1 CLOCK {#idx142242}

PORTIBM PC Portable (uses same BIOS as XT) 0140-0157 - RTCsee Real-Time Clock (alternate Real Time Clock for XTIBM PC XT) (1st at 0340-0357) {#idx142807}

PORTIBM PC Portable (uses same BIOS as XT) 01E8-01EF - Headland HL21 & Acer M5105 chipsets - SYSTEM CONTROL {#idx143017}{#idx143019}

PORTIBM PC Portable (uses same BIOS as XT) 0240-0257 - RTCsee Real-Time Clock (alternate Real Time Clock for XTIBM PC XT) (1st at 0340-0357) {#idx144044}

PORTIBM PC Portable (uses same BIOS as XT) 02A2-02A3 - MSM58321RS clock {#idx144528}

PORTIBM PC Portable (uses same BIOS as XT) 02C0-02Cx - AST-clock {#idx144628}

PORTIBM PC Portable (uses same BIOS as XT) 02C0-02DF - XT-Real Time Clock 2 (default jumpered address) {#idx144633}

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. {#idx145738}{#idx145746}{#idx145757}

PORTIBM PC Portable (uses same BIOS as XT) 0340-0357 - RTCsee Real-Time Clock (1st Real Time Clock for XTIBM PC XT) {#idx146474}

PORTIBM PC Portable (uses same BIOS as XT) 037C-037F - C&T F87000 Multi-Mode Peripheral Chip - OUTPUT PORTS {#idx147160}

PORTIBM PC Portable (uses same BIOS as XT) 0380-038C - 2nd SDLC (Synchronous Data Link Control) adapter {#idx147227}{#idx147233}{#idx147249}{#idx147285}

PORTIBM PC Portable (uses same BIOS as XT) 0388-038F - mc-soundmachine, mc 03-04/1992 - SPEECH I/O {#idx147521}{#idx147534}

PORTIBM PC Portable (uses same BIOS as XT) 03A0-03AF - 1st BSC (Binary Synchronous Communication) adapter {#idx147763}{#idx147767}{#idx147785}

PORTIBM PC Portable (uses same BIOS as XT) 03B0-03BF - 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. (Monochrome Display Adapter based on 6845) {#idx148052}{#idx148056}{#idx148057}{#idx148060}

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 {#idx148317}{#idx148319}

PORTIBM PC Portable (uses same BIOS as XT) 03C4-03C5 - EGAEnhanced Graphics Adapter(Enhanced Graphics Adapter) IBMInternational Busiuness Machines's second color video board for the IBMInternational Busiuness Machines PCIBM PC family, capable of a maximum resolution of 640x350 pixels in 16 simultaneous colors of a total of 64 possible colors./VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. - SEQUENCER REGISTERS {#idx148377}{#idx148383}{#idx148387}{#idx148391}{#idx148463}{#idx148586}{#idx148588}{#idx148605}{#idx148609}{#idx148628}{#idx148629}{#idx148646}{#idx148650}

PORTIBM PC Portable (uses same BIOS as XT) 03CE-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./MCGAMulti-Color Graphics Array(Multi-Color Graphics Array) The low-end color adapter offered in IBMInternational Busiuness Machines's early PS/2IBM PS/2, any model series machines. - GRAPHICS CONTROLLER REGISTERS {#idx149014}

PORTIBM PC Portable (uses same BIOS as XT) 03D4-03D5 - COLOR VIDEO - CRT CONTROL REGISTERS {#idx149108}{#idx149166}{#idx149175}{#idx149298}{#idx149478}{#idx149479}{#idx149574}{#idx149703}{#idx149740}{#idx149904}

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 {#idx149954}{#idx150010}{#idx150012}{#idx150032}{#idx150074}{#idx150077}{#idx150078}{#idx150079}{#idx150135}{#idx150136}{#idx150137}{#idx150138}{#idx150145}{#idx150247}{#idx150420}{#idx150424}{#idx150431}{#idx150433}{#idx150438}{#idx150440}{#idx150445}{#idx150449}{#idx150474}{#idx150521}{#idx150530}

PORTIBM PC Portable (uses same BIOS as XT) 03E0-03E1 - Cirrus Logic CL-PD6710/6722/6729 - PC-CARD HOST ADAPTER {#idx150931}{#idx150960}{#idx151036}{#idx151040}{#idx151042}{#idx151044}{#idx151078}{#idx151122}{#idx151162}

PORTIBM PC Portable (uses same BIOS as XT) 03F8-03FF - Serial port (8250,8250A,8251,16450,16550,16550A,etc.) COM1 {#idx151917}{#idx152012}{#idx152020}

PORTIBM PC Portable (uses same BIOS as XT) 0530-0537 - Windows Sound System ("WSS") (default address) {#idx152562}

PORTIBM PC Portable (uses same BIOS as XT) 0AD6-0AD7 - Chips & Technologies PCIBM PC Video (82C9001A) - CONTROL REGISTERS {#idx153112}{#idx153124}{#idx153150}{#idx153165}{#idx153179}{#idx153240}{#idx153333}{#idx153335}{#idx153337}{#idx153339}

PORTIBM PC Portable (uses same BIOS as XT) 0F8E-0F8F - OPTi "Vendetta" (82C750) CHIPSET - Audio Module Data Registers {#idx153909}

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 {#idx154648}{#idx154652}{#idx154664}{#idx154671}

PORTIBM PC Portable (uses same BIOS as XT) xxxx - AMD-645 - Power Management Registers {#idx158348}

PORTIBM PC Portable (uses same BIOS as XT) xxxx - Ensoniq AudioPCI ES1370 - CONTROL REGISTERS {#idx158581}{#idx158585}{#idx158588}{#idx158590}{#idx158607}{#idx158659}

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 {#idx158002}{#idx158167}{#idx158178}