RBIL61 - REGISTERS

86 Bugs List {#idx175925}{#idx175930}{#idx175939}{#idx175952}{#idx175973}{#idx175978}{#idx176007}{#idx176065}{#idx176079}{#idx176144}{#idx176156}{#idx176252}{#idx176283}{#idx176286}{#idx176293}{#idx176307}{#idx176317}{#idx176326}{#idx176367}{#idx176400}{#idx176405}{#idx176515}{#idx176546}{#idx176553}{#idx176557}{#idx176682}{#idx176702}{#idx176704}{#idx176711}{#idx176732}{#idx176733}{#idx176743}{#idx176744}{#idx176790}

Bibliography {#idx167331}

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. - {#idx159064}

CALL xxxxh:xxxxh - BIOS32 Service Directory {#idx159249}

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 {#idx160290}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 09h - RTCsee Real-Time Clock - YEAR {#idx168000}

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. 28h/00h - Philips SAA5252 - VIDEO SIGNAL SETUP {#idx170123}

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. 28h/03h - Philips SAA5252 - ON-SCREEN DISPLAY COLUMN {#idx170158}

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. 28h/04h - Philips SAA5252 - ON-SCREEN DISPLAY DATA {#idx170167}

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. 28h/80h - Philips SAA5252 - STATUS {#idx170172}{#idx170176}

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/00h - ITT VPX 32xx/322xD - JEDEC MANUFACTURER ID {#idx170248}

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/FAh - ITT VPX 32xx - Unimplemented {#idx171028}

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. 8Ah/00h - ITT VDP 3108 - Color Lookup Table (array) {#idx171143}

INT 01 - CPU-generated - SINGLE STEP {callout or callback} {#idx65}

INT 03 - Soft-ICE v2.80 - BACK DOOR COMMANDS - POPUP & START A DEBUG SESSION {#idx269}

INT 10 - Chips & Technologies Wingine DGX - GET 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. SAVE BUFFER SIZE {#idx5520}{#idx5522}

INT 10 - 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. Register Interface Library - DEFINE DEFAULT REGISTER TABLE {#idx7321}

INT 10 - 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. Register Interface Library - READ ONE REGISTER {#idx7156}{#idx7164}{#idx7166}{#idx7170}{#idx7173}

INT 10 - 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. Register Interface Library - READ REGISTER RANGE {#idx7212}

INT 10 - 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. Register Interface Library - READ REGISTER SET {#idx7249}{#idx7258}{#idx7260}

INT 10 - 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. Register Interface Library - REVERT TO DEFAULT REGISTERS {#idx7295}

INT 10 - 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. Register Interface Library - WRITE REGISTER RANGE {#idx7230}

INT 10 - 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. Register Interface Library - WRITE REGISTER SET {#idx7276}

INT 10 - UNCHAIN - RESTORE VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. REGISTERS {#idx6852}

INT 10 - UNCHAIN - SAVE CURRENT VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. REGISTERS {#idx6802}

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. 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. Extensions - 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. {#idx4878}

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. - CPU(Central Processing Unit) The microprocessor which executes programs on your computer. VIDEO MEMORY CONTROL {#idx4425}

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./AF (Accelerator Functions) - 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. {#idx5063}

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./CI (Cursor 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. {#idx4724}

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./FP (Flat Panel 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. {#idx4720}

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./GC (Graphics System Configuration) - 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. {#idx5051}

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. XGA(Extended Graphics Array) 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. Extensions - RETURN XGA(Extended Graphics Array) MODE INFORMATION {#idx4163}{#idx4165}

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. XGA(Extended Graphics Array) 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. Extensions - RETURN XGA(Extended Graphics Array) SUBSYSTEM INFORMATION {#idx4134}{#idx4135}

INT 10 - VIDEO - ALTERNATE FUNC SELECT (ATI,Tatung,Taxan) - ENHANCED FEATURES {#idx3126}{#idx3142}

INT 10 - VIDEO - ALTERNATE FUNCTION SELECT (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.) - GRAY-SCALE SUMMING {#idx3003}

INT 10 - VIDEO - ALTERNATE FUNCTION SELECT (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.) - VIDEO ADDRESSING {#idx2992}

INT 10 - VIDEO - Compaq Extensions - SELECT EXTERNAL MONITOR {#idx6514}

INT 10 - VIDEO - Compaq Extensions - SELECT INTERNAL MONITOR {#idx6523}

INT 10 - VIDEO - Compaq Extensions - SET DAC(Digital-to-Analog Converter) A hardware device (in its simplest form, nothing more than a set of interconnected resistors) which converts a digital number into an analog signal whose voltage is proportional to the value of the digital number. VGAVideo Graphics Array and later color video boards use DACs to convert color values into the analog signals sent to the display; sound boards normally use DACs as well. 6-BIT MODE {#idx6641}

INT 10 - VIDEO - Compaq Extensions - SET DAC(Digital-to-Analog Converter) A hardware device (in its simplest form, nothing more than a set of interconnected resistors) which converts a digital number into an analog signal whose voltage is proportional to the value of the digital number. VGAVideo Graphics Array and later color video boards use DACs to convert color values into the analog signals sent to the display; sound boards normally use DACs as well. 8-BIT MODE {#idx6651}

INT 10 - VIDEO - Compaq SLT/286 - WRITE COLOR MIX REGISTERS {#idx6598}

INT 10 - VIDEO - GET INDIVIDUAL PALETTE REGISTER (VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers.,UltraVision v2+) {#idx2426}{#idx2429}

INT 10 - VIDEO - Paradise VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers., AT&TAmerican Telephone and Telegraph VDC600 - EXTENDED DATA REGISTER ACCESS {#idx1900}{#idx1902}

INT 10 - VIDEO - PCjr, Tandy 1000 - GET CRT/CPU(Central Processing Unit) The microprocessor which executes programs on your computer. PAGE REGISTERS {#idx1996}

INT 10 - VIDEO - PERFORM GRAY-SCALE SUMMING (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.) {#idx2513}{#idx2517}

INT 10 - VIDEO - READ ALL PALETTE REGISTERS AND OVERSCAN REGISTER (VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers.) {#idx2449}{#idx2455}{#idx2458}

INT 10 - VIDEO - READ BLOCK OF DAC(Digital-to-Analog Converter) A hardware device (in its simplest form, nothing more than a set of interconnected resistors) which converts a digital number into an analog signal whose voltage is proportional to the value of the digital number. VGAVideo Graphics Array and later color video boards use DACs to convert color values into the analog signals sent to the display; sound boards normally use DACs as well. REGISTERS (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.) {#idx2485}{#idx2487}

INT 10 - VIDEO - READ CHARACTER AND ATTRIBUTE ATIBM PC AT CURSOR POSITION {#idx2082}

INT 10 - VIDEO - SAVE/RESTORE VIDEO STATE (PS50+IBM PS/2 Models 50,60,70,80,VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers.) {#idx3601}{#idx3619}{#idx3628}

INT 10 - VIDEO - SELECT ACTIVE DISPLAY PAGE {#idx2011}{#idx2015}

INT 10 - VIDEO - SET ALL PALETTE REGISTERS (PCjr,Tandy,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.) {#idx2377}{#idx2391}

INT 10 - VIDEO - SET BLOCK OF DAC(Digital-to-Analog Converter) A hardware device (in its simplest form, nothing more than a set of interconnected resistors) which converts a digital number into an analog signal whose voltage is proportional to the value of the digital number. VGAVideo Graphics Array and later color video boards use DACs to convert color values into the analog signals sent to the display; sound boards normally use DACs as well. REGISTERS (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.) {#idx2467}{#idx2471}

INT 10 - VIDEO - TEXT-MODE CHARGEN - LOAD USER-SPECIFIED PATTERNS (PSIBM PS/2, any model,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.) {#idx2687}

INT 10 - VIDEO - UltraVision - GET ULTRAVISION PALETTE (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.) {#idx6944}

INT 10 - VIDEO - UltraVision - LOAD ULTRAVISION PALETTE (color 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.) {#idx6911}

INT 12 - CPU-generated (Pentium +) - MACHINE CHECK EXCEPTION {#idx7772}

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.) {#idx8614}{#idx8622}

INT 14 - PhysTechSoft PTS ROM-DOS - SET PACKET {#idx12286}

INT 15 - Advanced Power Management v1.1 - 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. APM FUNCTIONS {#idx19853}

INT 15 - Advanced Power Management v1.1 - 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. APM INSTALLATION CHECK {#idx19845}

INT 15 - 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. - Flash ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. - READ FLASH 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. {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.} {#idx23768}

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 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. AND CHIPSET IDENTIFICATION {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.} {#idx23709}

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. - v1.00.05.AX1 - ??? {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.} {#idx23640}

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. v1.00.05.AX1 - ??? {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.} {#idx23597}

INT 15 - APM SL Enhanced v1.0 - GET AUTO POWER OFF TIMER {#idx19747}

INT 15 - APM SL Enhanced v1.0 - GET GLOBAL STANDBY TIMER {#idx19725}

INT 15 - APM SL Enhanced v1.0 - SET AUTO POWER OFF TIMER {#idx19758}

INT 15 - APM SL Enhanced v1.0 - SET GLOBAL STANDBY TIMER {#idx19735}

INT 15 - Compaq 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). System ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. 04/08/93 - 32-bit CS ADDRESSING MODE CALLS {#idx23590}

INT 15 - 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). SYSTEM ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. - 32-bit CS ADDRESSING MODE CALLS {#idx23582}

INT 15 - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. 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. - SMART ENERGY SYSTEM - GET ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. STARTUP VIDEO REG TABLES {partially documented} {#idx18521}{#idx18528}{#idx18543}

INT 15 - Intel System Management Bus - 16-BIT PROTECTED-MODE CONNECT {#idx19948}

INT 15 - Intel System Management Bus - 32-BIT PROTECTED-MODE CONNECT {#idx19974}

INT 15 - Intel System Management Bus - REAL MODE CONNECT {#idx19926}

INT 15 - MultiDOS Plus 4.01 - SET CONTEXT-SWITCH FUNCTIONS {#idx18364}

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} {#idx22887}

INT 15 - SYSTEM - SWITCH TO PROTECTED MODE {#idx21006}

INT 15 - TopViewTopView, DESQview, TaskView, OmniView, other compatibles - SEND MESSAGE - "WRITE" - WRITE TO OBJECT {#idx17334}

INT 15 - VMiX v2.???+ - "sys_vm_func" - EXECUTE FUNCTION IN PROTECTED MODE {#idx19160}

INT 16 - Netroom CACHECLK - 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.} {#idx25904}

INT 16 - PTxxx.COM - (xxx=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.,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.,HER...) CALL GATE FOR GRAPHICS {#idx26544}

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 {#idx32229}

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. {#idx32879}{#idx32924}{#idx32998}{#idx33053}{#idx33057}{#idx33167}{#idx33187}{#idx33214}{#idx33218}

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) {#idx33442}

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) {#idx33398}{#idx33403}

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) {#idx35383}{#idx35442}{#idx35444}{#idx35451}{#idx35454}{#idx35615}{#idx35619}{#idx36015}{#idx36018}{#idx36187}{#idx36190}{#idx36229}{#idx36232}{#idx36383}{#idx36386}{#idx36411}{#idx36414}{#idx36446}{#idx36449}{#idx36644}{#idx36646}{#idx36739}{#idx36742}{#idx36910}{#idx37638}{#idx37655}{#idx37694}{#idx37775}{#idx37790}{#idx37816}{#idx37843}{#idx38357}{#idx38361}{#idx38369}{#idx38401}{#idx38404}{#idx38534}

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) {#idx34165}{#idx34167}

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) {#idx33479}

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) {#idx34251}{#idx34429}

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) {#idx33322}{#idx33329}

INT 1A - PCMCIA Socket Services v1.00 - REGISTER STATUS CHANGE CALLBACK {#idx31067}

INT 1A - PCMCIA Socket Services v2.1 - GET ACCESS OFFSETS {#idx31785}

INT 1A - PCMCIA Socket Services v2.1 - VENDOR SPECIFIC {#idx31850}

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. {#idx31974}{#idx31979}{#idx32010}{#idx32122}{#idx32128}

INT 1A - TheGrab v4.60 - ??? {#idx39038}

INT 1F - C&T "SuperState" 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. - EXECUTE FAR PROC ROUTINE ON SuperState {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.} {#idx39343}

INT 20 - Microsoft Windows - VMINI / ENABLE - 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} {#idx40827}

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} {#idx39599}

INT 21 - Digital Research DOS Plus - CALL BDOS {#idx58855}

INT 21 - DOS 1+ - FLUSH BUFFER AND READ STANDARD INPUT {#idx41722}

INT 21 - DOS 2+ - "EXEC" - LOAD AND/OR EXECUTE PROGRAM {#idx50318}

INT 21 - DOS 2.25 only - GET LEAD BYTE TABLE ADDRESS {#idx55248}{#idx55255}

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.} {#idx53187}{#idx53201}

INT 21 - DOS 3.1+ - SET EXTENDED ERROR INFORMATION {#idx53275}

INT 21 - DOS 3.1+ internal - SERVER FUNCTION CALL {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.} {#idx52943}

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.} {#idx53435}{#idx53457}

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 {#idx71054}

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.} {#idx46666}

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 {#idx46084}{#idx47071}

INT 21 - OS/2 v2.1+ Virtual DOS MachineA special type of virtual machine provided by OS/2 version 2.0, in which a copy of MS-DOS or an MS-DOS compatible operating system (or even an incompatible 8086 operating system) is run and appears to have full control of the system. See also Virtual Machine, INT 21h Function 64h. - OS/2 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. 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.} {#idx55411}

INT 21 - Phar Lap 386/DOS-Ext VMM v3.0 - READ PROTMODE REGS AFTER SFTWARE INT {protected mode} {#idx43267}

INT 21 - Phar Lap 386/DOS-Extender - CALL REAL-MODE PROCEDURE {protected mode} {#idx42568}

INT 21 - Phar Lap 386/DOS-Extender - CALL REAL-MODE PROCEDURE, REGISTERS {protected mode} {#idx42593}{#idx42598}

INT 21 - Phar Lap 386/DOS-Extender - EXECUTE PROGRAM {protected mode} {#idx43413}

INT 21 - Phar Lap 386/DOS-Extender - ISSUE REAL-MODE INTERRUPT {protected mode} {#idx42608}{#idx42615}

INT 21 - Phar Lap 386/DOS-Extender v3.0+ - READ/WRITE SYSTEM REGISTERS {protected mode} {#idx43213}{#idx43216}

INT 21 - Phar Lap 386/DOS-Extender VMM - READ REGISTERS AFTER CTRL-C INT {protected mode} {#idx42939}{#idx42941}{#idx42946}

INT 21 - Windows95 - LONG FILENAME FUNCTIONS {#idx56084}

INT 23 - DOS 1+ - CONTROL-C/CONTROL-BREAK HANDLER {#idx72041}

INT 25 - DOS 1+ - ABSOLUTE DISK READ (except partitions > 32M) {#idx72207}{#idx72246}

INT 25 - DOS 3.31+ - ABSOLUTE DISK READ (32M-2047M hard-disk partition) {#idx72294}

INT 26 - DOS 1+ - ABSOLUTE DISK WRITE (except partitions > 32M) {#idx72415}{#idx72430}

INT 26 - DOS 3.31+ - ABSOLUTE DISK WRITE (32M-2047M hard-disk partition) {#idx72467}

INT 28 - DOS 2+ - DOS IDLE INTERRUPT {callout or callback} {#idx72529}

INT 2C - Cloaking - PROTECTED-MODE VIRTUAL DMAsee Direct Memory Access SERVICES {protected mode} {#idx73609}

INT 2C - Cloaking - SET PASSALONG ADDRESS {protected mode} {#idx73319}{#idx73326}

INT 2D - ALTERNATE MULTIPLEX INTERRUPT SPECIFICATION (AMIS) [v3.6] {#idx73783}

INT 2E - DOS 2+ - PASS COMMAND TO COMMAND INTERPRETER FOR EXECUTION {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.} {#idx74527}

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 {#idx81953}

INT 2F - CS_TSR specification - CUSTOM SUBFUNCTION {#idx88051}

INT 2F - DESQview v2.26+ External Device InterfaceA series of calls made by the DESQview multitasker on various "interesting" events, which may be intercepted by programs which wish to keep track of the current system state. See also Callout. - DRIVER CUSTOM SUBFUNCTION {#idx94202}

INT 2F - DESQview v2.26+ External Device InterfaceA series of calls made by the DESQview multitasker on various "interesting" events, which may be intercepted by programs which wish to keep track of the current system state. See also Callout. - INSTALLATION CHECK {#idx94190}

INT 2F - DOS 3.0+ internal - GET CALLER'S REGISTERS {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.} {#idx77512}

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.} {#idx77371}

INT 2F - DOS 3.3+ internal - IOCTL {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.} {#idx77777}

INT 2F - DOS 5+ DOSKEY - INSTALLATION CHECK {#idx84094}

INT 2F - DOS 5+ TASK SWITCHER - BUILD CALLOUT CHAIN {callout or callback} {#idx84946}

INT 2F - DOS 5+ TASK SWITCHER - IDENTIFY INSTANCE DATA {callout or callback} {#idx85055}

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 - INSTALLATION CHECK {#idx83637}

INT 2F - DR DOS 6.0+ DELWATCH.EXE - 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.} {#idx76198}

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.} {#idx75414}

INT 2F - F-PROT v1.x only - F-POPUP.EXE - 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. {#idx83998}{#idx84001}

INT 2F - Helix Multimedia Cloaking - CACHECLK - 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.} {#idx85884}

INT 2F - Intel Plug-and-Play - CONFIGURATION MANAGER - GET ENTRY POINT {#idx80749}

INT 2F - INTERLNK - INSTALLATION CHECK {#idx85771}

INT 2F - INTMON v2.1 - DISPLAY CPU(Central Processing Unit) The microprocessor which executes programs on your computer. REGISTERS??? {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.} {#idx89017}

INT 2F - MDEBUG command driver - EXECUTE INTERPRETER COMMAND {#idx93237}

INT 2F - MDEBUG command driver - EXECUTE KEY IN THE MONITOR {#idx93269}

INT 2F - MDEBUG command driver - GET STATUS {callout or callback} {#idx93183}

INT 2F - MDEBUG command driver - INITIALIZE DRIVER {#idx93213}

INT 2F - MDEBUG display driver - GET DRIVER STATUS {callout or callback} {#idx92988}{#idx93005}

INT 2F - MS Windows - "DOSMGR" VIRTUAL DEVICE API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. {callout or callback} {#idx79389}

INT 2F - MS Windows - PHARLAPX - 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 {#idx81133}

INT 2F - MS Windows - POSTMSG - 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 {#idx81390}

INT 2F - MS Windows - SWITCH VMs AND CALLBACK {#idx81437}

INT 2F - MS Windows - WINDOWS ENHANCED MODE & 286 DOSX INIT BROADCAST {callout or callback} {#idx79203}{#idx79225}{#idx79237}

INT 2F - Multiplex - NOTES {#idx74847}{#idx74855}

INT 2F - NETWORK - SET NETWORK EVENT POSTsee Power-On Self-Test HANDLER {#idx90338}

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.} {#idx82865}

INT 2F - Novell DOS 7 TaskMGR - ??? 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.} {#idx82900}

INT 2F - Novell DOS 7 TaskMGR - ??? {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.} {#idx82411}

INT 2F - Novell NetWare - Adv NetWare 4.0 DOS Requester - GET VLM CALL ADDRESS {#idx86315}{#idx86319}{#idx86481}{#idx86510}{#idx86601}{#idx86641}{#idx86669}{#idx86774}{#idx86797}{#idx86826}{#idx86835}{#idx86926}{#idx86959}{#idx86965}

INT 2F - Novell NetWare - DOS Requester v1.03+ - GET VLM CallA ADDRESS {#idx86983}

INT 2F - Novell NetWare - IPXODI v2.12 - GET GNMA SUPPORT {#idx87139}{#idx87144}{#idx87148}{#idx87153}{#idx87168}{#idx87173}{#idx87179}

INT 2F - Novell NetWare - TBMI v1.1+ - INSTALLATION CHECK / Windows SUPPORT {#idx87705}

INT 2F - Novell NetWare - TCPIP.EXE v4.1 - 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.} {#idx87349}

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 {#idx90748}{#idx90749}{#idx90761}

INT 2F - PC-DOS Econet v1.05 - ADD EVENT HANDLER {#idx92074}

INT 2F - PC-Kwik 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. {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.} {#idx92652}

INT 2F - PCED v2.1 - PCED 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. {#idx84116}

INT 2F - PTS-DOS 6.51, S/DOS 1.0+ - "EMPTY" (RESERVED FOR INPUT STRING) {callout or callback} {#idx77965}

INT 2F - PTS-DOS 6.51, S/DOS 1.0+ - BACKDOOR INTERCEPT INT 2Fh CHAIN {#idx78070}

INT 2F - Quarterdeck RPCI - DVDOS4GX.DVR - ??? {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.} {#idx93429}

INT 2F - Quarterdeck RPCI - INSTALLATION CHECK {#idx93377}

INT 2F - SMARTDRV v4.00+ - INSTALLATION CHECK AND HIT RATIOS {#idx84357}{#idx84368}

INT 2F - TBSCANX - SCAN BUFFER {#idx92241}

INT 2F - TEMPLEXX 1.0 - INSTALLATION CHECK {#idx92975}

INT 2F - VEDIT VSWAP - EXEC PROGRAM WITH SWAP {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.} {#idx93626}

INT 2F - Windows 3+ (OS/2 2.x???) - GET VIRTUAL DEVICE DRIVER (VDD) CAPABILTIES {#idx83058}

INT 2F - Windows 3.x - ENABLE VDD TRAPPING OF VIDEO REGISTERS {#idx83118}

INT 2F - Windows95 - SAVE32.COM - INSTALLATION CHECK {#idx79658}{#idx79662}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - FREE DOS MEMORY BLOCK {protected mode} {#idx96669}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - FREE LDT DESCRIPTOR {protected mode} {#idx96444}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - GET STATE SAVE/RESTORE ADDRESSES {protected mode} {#idx97032}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - RESIZE DOS MEMORY BLOCK {protected mode} {#idx96688}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - SET DESCRIPTOR ACCESS RIGHTS {protected mode} {#idx96556}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - SET DESCRIPTOR {protected mode} {#idx96600}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - SET SEGMENT BASE ADDRESS {protected mode} {#idx96509}

INT 31 - DPMIsee DOS Protected-Mode Interface 0.9+ - SET SEGMENT LIMIT {protected mode} {#idx96527}

INT 31 - DPMIsee DOS Protected-Mode Interface 1.0+ - SET MULTIPLE DESCRIPTORS {protected mode} {#idx96634}

INT 33 - MS MOUSE v6.0+ - SET ALTERNATE MOUSE USER HANDLER {#idx98756}

INT 3E - FLOATING POINT EMULATION - Borland LANGUAGES "SHORTCUT" CALL {#idx99865}

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 {#idx102195}

INT 58 - TI Professional PCIBM PC - SYSTEM TIMER 25ms HOOK {callout or callback} {#idx102986}{#idx102997}

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 {#idx103034}

INT 5A - TI Professional PCIBM PC - SYSTEM TIMER 100ms HOOK {#idx103096}{#idx103108}

INT 5F - TI Professional PCIBM PC - KEYBOARD QUEUEING VECTOR {callout or callback} {#idx103653}

INT 60 - MDEBUG - GET ADDRESS OF THE HELP REGISTERS {#idx106662}{#idx106667}

INT 60 - MDEBUG - SET STATUS {#idx106801}

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!) {#idx103868}

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.} {#idx107375}

INT 62 - FGDRIVER v4.02 - "FG_GETDACS" - GET VIDEO DAC(Digital-to-Analog Converter) A hardware device (in its simplest form, nothing more than a set of interconnected resistors) which converts a digital number into an analog signal whose voltage is proportional to the value of the digital number. VGAVideo Graphics Array and later color video boards use DACs to convert color values into the analog signals sent to the display; sound boards normally use DACs as well. CONTENTS {partially documented} {#idx111479}

INT 62 - FGDRIVER v4.02 - "FG_GETRGB" - GET VIDEO DAC(Digital-to-Analog Converter) A hardware device (in its simplest form, nothing more than a set of interconnected resistors) which converts a digital number into an analog signal whose voltage is proportional to the value of the digital number. VGAVideo Graphics Array and later color video boards use DACs to convert color values into the analog signals sent to the display; sound boards normally use DACs as well. REGISTER CONTENTS {partially documented} {#idx111615}

INT 62 - FGDRIVER v4.02 - "FG_PALETTES" - SET ALL PALETTE REGISTERS {partially documented} {#idx112254}{#idx112257}{#idx112259}

INT 62 - FGDRIVER v4.02 - "FG_SETDACS" - SET VIDEO DAC(Digital-to-Analog Converter) A hardware device (in its simplest form, nothing more than a set of interconnected resistors) which converts a digital number into an analog signal whose voltage is proportional to the value of the digital number. VGAVideo Graphics Array and later color video boards use DACs to convert color values into the analog signals sent to the display; sound boards normally use DACs as well. CONTENTS {partially documented} {#idx112655}

INT 64 - BW-NFS - BWRPC - CALL ETHDEV.SYS {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.} {#idx114586}

INT 66 - IBMSND driver, DIGPAK - SET CALLBACK ADDRESS {#idx115182}

INT 67 - LIM EMSsee Expanded Memory Specification - GET OR SET PAGE MAP {#idx116418}

INT 67 - LIM EMSsee Expanded Memory Specification 4.0 - ALTERNATE MAP REGISTER SET {#idx116572}

INT 67 - Nanosoft MD386 - SET DEBUG EXCEPTION HANDLER {#idx116929}

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.} {#idx115842}{#idx115851}{#idx115894}{#idx115952}{#idx116073}

INT 67 - Virtual Control Program InterfaceA simple API for protected-mode programs to allocate memory and switch into or out of protected mode. See also DOS Protected-Mode Interface. - GET PROTECTED MODE INTERFACE {#idx117034}

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. - READ DEBUG REGISTERS {#idx117077}

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 DEBUG REGISTERS {#idx117082}{#idx117086}

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 {#idx117115}{#idx117129}

INT 6F - HP Vectra EX-BIOS - "F_IO_CTRL SF_CREATE_EVENT" - SET EVENT HANDLER {#idx120207}

INT 6F - HP Vectra EX-BIOS - "F_ISR" (internal) - RESPOND TO LOGICAL ISR {#idx119680}{#idx119682}

INT 78 - UofSalford DBOS DOS extender - 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. {#idx121957}{#idx121961}

INT 7A - Novell NetWare - IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. Driver - SEND PACKET {#idx122575}

INT 7A - Novell NetWare - IPXODI v2.12+ - GET IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. INFORMATION {#idx123046}

INT 7A - Novell NetWare - IPXODI v2.12+ - IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. GENERATE CHECKSUM {#idx123079}

INT 7A - Novell NetWare - IPXODI v2.12+ - IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software. VERIFY CHECKSUM {#idx123098}

INT 7A - Novell NetWare - IPXODI v2.12+ - OPEN LOOK-AHEAD SOCKET {#idx123117}

INT 80 - Linux - SYSTEM CALLS {#idx126093}

INT 92 - Da Vinci eMail Dispatcher INTERFACE {#idx127144}

INT D4 - PC-MOS/386 v3.0+ - ENTER/LEAVE NATIVE 386 EXECUTION MODE {#idx128885}

INT E0 - REAL/32 - "N_ERRMODE" - SET NETWORK ERROR MODE {#idx130278}

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-MANUFACTURER" - VENDOR-SPECIFIC {#idx132386}

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 {#idx132244}

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_MANUFACTURER" - VENDOR-SPECIFIC {#idx132398}

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 {#idx132261}

Interrupt Primer {#idx176841}{#idx176844}{#idx176862}

MEM 0040h:00A8h - VIDEO (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./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./VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers.) - POINTER TO VIDEO SAVE POINTER TABLE {#idx162276}{#idx162290}{#idx162301}{#idx162303}{#idx162324}{#idx162332}{#idx162335}{#idx162341}

MEM 0080h:0000h - 80286 CPU(Central Processing Unit) The microprocessor which executes programs on your computer. - LOADALL WORKSPACE {#idx162883}

MEM A000h:0000h - EGA+ GRAPHICS BUFFER {#idx162940}{#idx162943}

MEM A000h:8000h - S3 - MEMORY-MAPPED PCI CONFIGURATION REGISTERS {#idx162957}{#idx162964}

MEM A000h:8100h - S3 - MEMORY-MAPPED PACKED REGISTERS {#idx162971}{#idx162973}{#idx162976}{#idx162984}

MEM A000h:8180h - S3 - STREAMS PROCESSOR {#idx163142}{#idx163150}{#idx163170}

MEM A000h:8200h - S3 ViRGE - MEMORY-MAPPED MEMORY-PORT CONTROL REGISTERS {#idx163288}{#idx163292}{#idx163299}

MEM A000h:82E8h - S3 - MEMORY-MAPPED CURRENT Y POSITION REGISTER {#idx163309}

MEM A000h:83B0h - S3 - MEMORY-MAPPED VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. REGISTERS {#idx163319}{#idx163322}

MEM A000h:8504h - S3 ViRGE - MEMORY-MAPPED SUBSYSTEM REGISTERS {#idx163341}{#idx163345}{#idx163351}

MEM A000h:8580h - S3 - MEMORY-MAPPED DMAsee Direct Memory Access REGISTERS {#idx163371}{#idx163374}{#idx163379}

MEM A000h:86E8h - S3 - MEMORY-MAPPED ENHANCED REGISTERS {#idx163390}{#idx163393}

MEM A000h:A000h - S3 - MEMORY-MAPPED COLOR PALETTE REGISTERS {#idx163402}{#idx163405}

MEM A000h:A4D4h - S3 - MEMORY-MAPPED BLT-FILL REGISTERS {#idx163412}{#idx163415}

MEM A000h:A8D4h - S3 - MEMORY-MAPPED LINE REGISTERS {#idx163422}{#idx163425}

MEM A000h:ACD4h - S3 - MEMORY-MAPPED POLYGON-FILL REGISTERS {#idx163432}{#idx163435}

MEM A000h:B0D4h - S3 - MEMORY-MAPPED 3D-LINE REGISTERS {#idx163442}{#idx163445}

MEM A000h:B4D4h - S3 - MEMORY-MAPPED 3D-TRIANGLE REGISTERS {#idx163452}{#idx163455}

MEM A000h:FF00h - S3 - MEM-MAPPED "SCENIC HIGHWAY" (Local Periph. Bus) ACCESS {#idx163463}{#idx163470}{#idx163485}{#idx163620}

MEM BFF0h:0000h - ET4000/W32 ACL accelerator {#idx163668}{#idx163670}{#idx163672}{#idx163674}{#idx163678}{#idx163680}{#idx163686}{#idx163695}{#idx163696}{#idx163698}{#idx163699}{#idx163700}{#idx163701}{#idx163703}{#idx163704}{#idx163705}{#idx163706}{#idx163708}{#idx163710}{#idx163711}{#idx163714}{#idx163716}

MEM C800h:1C00h - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. XGA(Extended Graphics Array), XGA(Extended Graphics Array)/A - MEMORY-MAPPED REGISTERS {#idx163804}{#idx163807}{#idx163811}{#idx163830}

MEM FEC0h:0000h - Pentium - 82379AB I/O APIC - I/O REGISTER SELECT {#idx164394}

MEM FEC0h:0010h - Pentium - 82379AB I/O APIC - I/O WINDOW {#idx164409}

MEM FEE0h:0000h - Pentium - LOCAL APIC {#idx164435}{#idx164442}

MEM xxxxh:xxx0h - Advanced Configuration and Power Interface Spec (ACPI) v0.9+ {#idx164100}

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:00FEh - Pentium Pro - "MTRRcap" MEMORY TYPE RANGE REGISTER CAPABILITIES {#idx165498}{#idx165503}

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:0120h - Centaur (IDTsee Interrupt Descriptor Table) C6/WinChip2 - Memory Config Register Control {#idx165709}

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:02FFh - Pentium Pro - "MTRRdefType" - DEFAULT MEMORY TYPE {#idx166024}

Notes {#idx160598}{#idx167979}{#idx169971}{#idx169972}

Opcodes List {#idx172445}{#idx172476}{#idx172524}{#idx172619}{#idx172666}{#idx172766}{#idx172930}{#idx172952}{#idx172999}{#idx173002}{#idx173005}{#idx173077}{#idx173078}{#idx173083}{#idx173131}{#idx173133}{#idx173134}{#idx173142}{#idx173145}{#idx173146}{#idx173181}{#idx173213}{#idx173221}{#idx174027}{#idx174041}{#idx174054}{#idx174087}{#idx174127}{#idx174129}{#idx174130}{#idx174141}{#idx174143}{#idx174144}{#idx174151}{#idx174241}{#idx174319}{#idx174395}{#idx174501}{#idx174515}{#idx174537}{#idx174547}{#idx174599}{#idx174602}{#idx174614}{#idx174645}{#idx174656}{#idx174709}{#idx174723}{#idx174789}{#idx174800}{#idx174804}{#idx174806}{#idx174858}{#idx174864}{#idx174880}{#idx174884}{#idx174895}{#idx174950}{#idx174973}{#idx175041}{#idx175070}{#idx175171}{#idx175409}{#idx175464}{#idx175500}{#idx175504}{#idx175508}{#idx175543}{#idx175625}{#idx175635}{#idx175709}{#idx175748}

PORTIBM PC Portable (uses same BIOS as XT) 0000-001F - DMAsee Direct Memory Access 1 - FIRST DIRECT MEMORY ACCESS CONTROLLER (8237) {#idx132941}{#idx132976}

PORTIBM PC Portable (uses same BIOS as XT) 0020-003F - PIC 1 - PROGRAMMABLE INTERRUPT CONTROLLER (8259A) {#idx133093}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0023 - CHIP SET DATA {#idx133244}{#idx133297}{#idx133338}{#idx133368}{#idx133414}{#idx133451}{#idx133478}{#idx133497}{#idx133502}{#idx133513}{#idx133988}{#idx134045}{#idx134080}{#idx134142}{#idx134178}{#idx134395}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0023 - Chips&Technologies 82C811/82C812 - CONFIGURATION REGISTERS {#idx134214}{#idx134272}

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 {#idx133551}{#idx133553}{#idx133587}{#idx133594}{#idx133603}{#idx133610}{#idx133624}{#idx133816}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0024 - CHIPSET FROM PICO POWER, UMC or PCChips {#idx134656}{#idx134784}{#idx134980}{#idx135007}{#idx135122}{#idx135687}{#idx135921}{#idx135945}{#idx136013}{#idx136457}{#idx136613}{#idx136637}{#idx137257}{#idx137260}

PORTIBM PC Portable (uses same BIOS as XT) 0022-002B - INTEL 82355, PART OF CHIPSET FOR 386sx {#idx137396}

PORTIBM PC Portable (uses same BIOS as XT) 0024-0026 - PicoPower Vesuvius - V3-LS {#idx137555}

PORTIBM PC Portable (uses same BIOS as XT) 0024-0027 - PicoPower Vesuvius - V1-LS {#idx137804}

PORTIBM PC Portable (uses same BIOS as XT) 0024-0029 - HEADLAND HTK340 SHASTA 386/486 CHIPSET {#idx138724}{#idx138750}{#idx138754}{#idx138756}{#idx138757}

PORTIBM PC Portable (uses same BIOS as XT) 0026-0027 - INTEL 82347 POWER MANAGEMENT PERIPHERAL {#idx138846}

PORTIBM PC Portable (uses same BIOS as XT) 0028-002A - 80486 "Deep Green" motherboard - ??? {#idx138866}

PORTIBM PC Portable (uses same BIOS as XT) 002E-002F - DELL ENHANCED PARALLEL PORTIBM PC Portable (uses same BIOS as XT) {#idx138930}

PORTIBM PC Portable (uses same BIOS as XT) 0040-005F - PIT - PROGRAMMABLE INTERVAL TIMER (8253, 8254) {#idx139052}

PORTIBM PC Portable (uses same BIOS as XT) 006B-006F - SSGA CONTROL REGISTERS {#idx140211}

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) {#idx140247}

PORTIBM PC Portable (uses same BIOS as XT) 0080 - MANUFACTURING DIAGNOSTICS PORTIBM PC Portable (uses same BIOS as XT) {#idx140536}{#idx140622}{#idx140812}{#idx140956}{#idx140964}{#idx140972}

PORTIBM PC Portable (uses same BIOS as XT) 0080-008F - DMAsee Direct Memory Access PAGE REGISTERS (74612) {#idx141033}

PORTIBM PC Portable (uses same BIOS as XT) 0090-009F - PS/2IBM PS/2, any model - POS (PROGRAMMABLE OPTION SELECT) {#idx141181}

PORTIBM PC Portable (uses same BIOS as XT) 00A8-00A9 - Via VT82C496G "Pluto" - CONFIGURATION REGISTERS {#idx141289}{#idx141297}{#idx141626}

PORTIBM PC Portable (uses same BIOS as XT) 00A8-00AC - Via VT82C570M "Apollo Master" - CONFIGURATION REGISTERS {#idx141707}{#idx141715}

PORTIBM PC Portable (uses same BIOS as XT) 00C0-00DF - DMAsee Direct Memory Access 2 - SECOND DIRECT MEMORY ACCESS CONTROLLER (8237) {#idx141951}{#idx141953}

PORTIBM PC Portable (uses same BIOS as XT) 00E0-00E7 - MICROCHANNEL {#idx142004}

PORTIBM PC Portable (uses same BIOS as XT) 0100-0107 - PS/2IBM PS/2, any model POS (Programmable Option Select) {#idx142297}

PORTIBM PC Portable (uses same BIOS as XT) 0208-020A - Chips&Technologies 82C235 "SCAT" chipset - EMSsee Expanded Memory Specification PAGE REGISTERS {#idx143464}

PORTIBM PC Portable (uses same BIOS as XT) 0218-021A - Chips&Technologies 82C235 "SCAT" chipset - EMSsee Expanded Memory Specification PAGE REGISTERS {#idx143545}

PORTIBM PC Portable (uses same BIOS as XT) 0279 - Plug-and-Play - CONFIGURATION REGISTER {#idx144137}{#idx144142}{#idx144146}{#idx144151}{#idx144158}{#idx144170}{#idx144175}

PORTIBM PC Portable (uses same BIOS as XT) 02C6-02C9 - 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. - DAC(Digital-to-Analog Converter) A hardware device (in its simplest form, nothing more than a set of interconnected resistors) which converts a digital number into an analog signal whose voltage is proportional to the value of the digital number. VGAVideo Graphics Array and later color video boards use DACs to convert color values into the analog signals sent to the display; sound boards normally use DACs as well. REGISTERS (alternate address) {#idx144474}

PORTIBM PC Portable (uses same BIOS as XT) 0340-034F - Gravis Ultra Sound by Advanced Gravis {#idx146202}{#idx146221}{#idx146232}{#idx146233}{#idx146266}{#idx146267}{#idx146270}

PORTIBM PC Portable (uses same BIOS as XT) 0360-036F - PCIBM PC network (ATIBM PC AT) {#idx146676}{#idx146680}{#idx146705}{#idx146709}{#idx146718}

PORTIBM PC Portable (uses same BIOS as XT) 0380-038C - 2nd SDLC (Synchronous Data Link Control) adapter {#idx147003}

PORTIBM PC Portable (uses same BIOS as XT) 0388-0389 - AdLib - MONO SOUND OUTPUT {#idx147240}

PORTIBM PC Portable (uses same BIOS as XT) 0388-038F - mc-soundmachine, mc 03-04/1992 - SPEECH I/O {#idx147407}

PORTIBM PC Portable (uses same BIOS as XT) 03A0-03AF - 1st BSC (Binary Synchronous Communication) adapter {#idx147558}

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) {#idx147730}{#idx147813}{#idx147817}{#idx147822}{#idx147824}{#idx147826}{#idx147830}{#idx147832}{#idx147869}

PORTIBM PC Portable (uses same BIOS as XT) 03C0-03C1 - 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. - ATTRIBUTE CONTROLLER {#idx148009}{#idx148012}{#idx148016}

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 {#idx148091}{#idx148147}

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 {#idx148158}{#idx148198}{#idx148238}{#idx148253}{#idx148257}{#idx148287}{#idx148321}{#idx148337}{#idx148341}{#idx148374}{#idx148395}{#idx148398}{#idx148502}{#idx148518}

PORTIBM PC Portable (uses same BIOS as XT) 03C6-03C9 - 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. - DAC(Digital-to-Analog Converter) A hardware device (in its simplest form, nothing more than a set of interconnected resistors) which converts a digital number into an analog signal whose voltage is proportional to the value of the digital number. VGAVideo Graphics Array and later color video boards use DACs to convert color values into the analog signals sent to the display; sound boards normally use DACs as well. REGISTERS {#idx148534}

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 {#idx148690}{#idx148726}{#idx148741}{#idx148777}{#idx148782}{#idx148827}

PORTIBM PC Portable (uses same BIOS as XT) 03D4-03D5 - COLOR VIDEO - CRT CONTROL REGISTERS {#idx148879}{#idx148892}{#idx148898}{#idx148899}{#idx148904}{#idx148954}{#idx148955}{#idx148983}{#idx149033}{#idx149076}{#idx149135}{#idx149172}{#idx149182}{#idx149280}{#idx149286}{#idx149324}{#idx149359}{#idx149429}{#idx149685}{#idx149712}

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 {#idx149771}{#idx149868}{#idx149980}{#idx149998}{#idx150233}{#idx150253}{#idx150261}{#idx150268}

PORTIBM PC Portable (uses same BIOS as XT) 03D8-03DF - COLOR VIDEO - CRT MODE AND STATUS REGISTERS {#idx150428}

PORTIBM PC Portable (uses same BIOS as XT) 03E0-03E1 - Cirrus Logic CL-PD6710/6722/6729 - PC-CARD HOST ADAPTER {#idx150620}

PORTIBM PC Portable (uses same BIOS as XT) 03E0-03E1 - OPTi 82C824 - CardBus Bridge registers {#idx150595}{#idx150609}

PORTIBM PC Portable (uses same BIOS as XT) 03E2-03E3 - OPTi 82C824 - CardBus Bridge registers {#idx151065}{#idx151079}

PORTIBM PC Portable (uses same BIOS as XT) 03F0-03F1 - PCTech RZ1000 IDE(Integrated Drive Electronics) A type of disk drive interface which essentially extends the PCIBM PC's expansion bus all the way to the drive and places the drive controller on the disk drive itself. See also ESDI. controller {#idx151650}

PORTIBM PC Portable (uses same BIOS as XT) 03F0-03F7 - FDC 1 (1st Floppy Disk Controller) second FDC at 0370 {#idx151311}

PORTIBM PC Portable (uses same BIOS as XT) 03F8-03FF - Serial port (8250,8250A,8251,16450,16550,16550A,etc.) COM1 {#idx151740}{#idx151857}

PORTIBM PC Portable (uses same BIOS as XT) 0481-048B - 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 page registers {#idx152012}{#idx152015}

PORTIBM PC Portable (uses same BIOS as XT) 04C6-04CF - 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 count registers {#idx152028}

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 {#idx152048}{#idx152055}{#idx152058}

PORTIBM PC Portable (uses same BIOS as XT) 04E0-04FF - 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 stop registers {#idx152114}

PORTIBM PC Portable (uses same BIOS as XT) 0530-0537 - Windows Sound System ("WSS") (default address) {#idx152231}{#idx152323}{#idx152366}{#idx152392}

PORTIBM PC Portable (uses same BIOS as XT) 0800-08FF - I/O port access registers for extended 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. or SRAM(Static Random Access Memory) RAM which typically consists of one flip-flop per bit of memory. Unlike DRAMs, static RAM retains its contents as long as power is applied. Because there is no need to refresh the contents of memory addresses which are read, SRAM is faster than DRAM, but it is more expensive and typically is available in much smaller sizes than DRAM because each bit occupies more space on the chip. See also DRAM. {#idx152855}

PORTIBM PC Portable (uses same BIOS as XT) 0A79 - Plug-and-Play - WRITE DATA PORTIBM PC Portable (uses same BIOS as XT) {#idx152886}

PORTIBM PC Portable (uses same BIOS as XT) 0AD6-0AD7 - Chips & Technologies PCIBM PC Video (82C9001A) - CONTROL REGISTERS {#idx152905}{#idx152908}{#idx152924}{#idx153037}{#idx153247}

PORTIBM PC Portable (uses same BIOS as XT) 0C80-0C83 - 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). system board ID registers {#idx153303}

PORTIBM PC Portable (uses same BIOS as XT) 0CF8-0CFA - PCI Configuration Mechanism 2 - Configuration Registers {#idx153339}

PORTIBM PC Portable (uses same BIOS as XT) 0CF8-0CFF - PCI Configuration Mechanism 1 - Configuration Registers {#idx153314}{#idx153330}

PORTIBM PC Portable (uses same BIOS as XT) 0F8E-0F8F - OPTi "Vendetta" (82C750) CHIPSET - Audio Module Data Registers {#idx153581}{#idx153597}{#idx153662}

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 {#idx154073}{#idx154076}{#idx154174}{#idx154175}{#idx154178}{#idx154179}{#idx154188}{#idx154505}

PORTIBM PC Portable (uses same BIOS as XT) 46E8 - VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. - VIDEO ADAPTER ENABLE {#idx155494}

PORTIBM PC Portable (uses same BIOS as XT) 83C6-83C9 - Compaq Qvision 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). - DAC(Digital-to-Analog Converter) A hardware device (in its simplest form, nothing more than a set of interconnected resistors) which converts a digital number into an analog signal whose voltage is proportional to the value of the digital number. VGAVideo Graphics Array and later color video boards use DACs to convert color values into the analog signals sent to the display; sound boards normally use DACs as well. color registers {#idx156395}{#idx156408}

PORTIBM PC Portable (uses same BIOS as XT) 83D0-9FD3 - Chips&Techs 64310 - 32-BIT EXTENSION REGS - BitBLT {#idx156428}{#idx156430}{#idx156492}

PORTIBM PC Portable (uses same BIOS as XT) A2EE-A2EF - ATI Mach8/Mach32 - LINE DRAW OPTIONS {#idx157022}

PORTIBM PC Portable (uses same BIOS as XT) A3D0-BFD3 - Chips&Techs 64310 - 32-BIT EXTENSION REGS - CURSOR CONTROL {#idx157037}{#idx157039}

PORTIBM PC Portable (uses same BIOS as XT) BEE8-BEE9 - 8514/A and compatible - MULTIFUNCTION CONTROL {#idx157325}{#idx157340}{#idx157346}{#idx157366}{#idx157395}

PORTIBM PC Portable (uses same BIOS as XT) C100-C1FF - Intel Pentium mboard - PCTech RZ1000 EIDE controller {#idx157487}

PORTIBM PC Portable (uses same BIOS as XT) C200-C204 - Intel Pentium mboard ("Neptune" chipset) {#idx157510}

PORTIBM PC Portable (uses same BIOS as XT) xxxx - AMD-645 - Power Management Registers {#idx158082}

PORTIBM PC Portable (uses same BIOS as XT) xxxx - Ensoniq AudioPCI ES1370 - CONTROL REGISTERS {#idx158374}{#idx158493}{#idx158534}{#idx158587}{#idx158738}

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 {#idx157851}{#idx157963}{#idx158038}{#idx158697}

Ralf Brown Programs {#idx176908}