LOCAL NetRemoteMove {partially documented} (INT 21, LAN Manager Enhanced DOS, AX=5F4Bh) LOCAL NetServerEnum {partially documented} (INT 21, LAN Manager Enhanced DOS, AX=5F4Ch/BX=0001h) LOCAL NetServiceControl {partially documented} (INT 21, LAN Manager Enhanced DOS, AX=5F42h) LOCAL NetServiceEnum {partially documented} (INT 21, LAN Manager Enhanced DOS, AX=5F41h/BL=0002h) LOCAL NetSpecialSMB {partially documented} (INT 21, LAN Manager Enhanced DOS, AX=5F3Eh) LOCAL NetUseAdd {partially documented} (INT 21, LAN Manager Enhanced DOS, AX=5F47h) LOCAL NetUseDel {partially documented} (INT 21, LAN Manager Enhanced DOS, AX=5F48h) LOCAL NetUseEnum {partially documented} (INT 21, LAN Manager Enhanced DOS, AX=5F46h/BX=0001h) LOCAL NetWkstaGetInfo (INT 21, LAN Manager Enhanced DOS, AX=5F44h/BX=0Ah/DX=0000h) LOCAL NetWkstaSetInfo {partially documented} (INT 21, LAN Manager Enhanced DOS, AX=5F45h/BX=0001h) LOCAL VECTOR TABLE ENTRY 0 (TIMER) (MEM FEE0h:0320h, Pentium +, LOCAL APIC) LOCAL VECTOR TABLE ENTRY 1 (LINT0) (MEM FEE0h:0350h, Pentium +, LOCAL APIC) LOCAL VECTOR TABLE ENTRY 2 (LINT1) (MEM FEE0h:0360h, Pentium +, LOCAL APIC) LOCAL VECTOR TABLE ENTRY 3 (Error) (MEM FEE0h:0370h, Pentium +, LOCAL APIC) LOCATE 3270PC CONFIGURATION TABLE (INSTALLATION CHECK) (INT 10, VIDEO, AX=3000h/CX=0000h/DX=0000h) LOCATE DEVICE (INT 10, VESA(Video Electronics Standards Association) An industry group which sets both hardware and software standards and recommendations. The term VESA is also used to denote compliance with the VESA SuperVGA BIOS Extensions, a standard set of video BIOS functions for accessing video modes of higher resolution than those defined by IBMInternational Busiuness Machines. VBE(VESA BIOS Extensions) The common software interface for video cards providing support for high resolution and bit depth./AI (Audio Interface), AX=4F13h/BX=0001h/CX=0000h) LOCATE ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. BASIC(Beginner's All-purpose Symbolic Instruction Code) A programming language originally designed as a means of teaching FORTRAN. There are many variations of BASIC with differing capabilities; the majority are interpreted but compiled BASIC is becoming more popular. All genuine IBMInternational Busiuness Machines personal computers (including the latest PS/2IBM PS/2, any model models) come equipped with a cassette-based BASIC interpreter in ROM. (INT 15, SYSTEM, later PSIBM PS/2, any model/2s, AH=22h) LOCK (INT 60, 3com, 10NET, Banyan VINES, AH=12h/AL=00h/ES:SI=0000h) LOCK ALL OPEN CHANNELS (INT 7F, Alloy NTNX, MW386, CHANNEL CONTROL, AH=10h/CL=06h) LOCK AND WAIT (INT 60, 3com, 10NET, Banyan VINES, AH=11h) LOCK CHANNEL (INT 7F, Alloy NTNX, MW386, CHANNEL CONTROL, AH=10h/CL=02h) LOCK CURRENT MODE (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, AX=007Fh/BH=03h) LOCK DMAsee Direct Memory Access REGION (INT 4B, Virtual DMA SpecificationA set of interrupt calls which permit the use of DMA even on systems running in protected or Virtual-86 mode with their address remapping, or systems such as Micro Channel PSIBM PS/2, any model/2s with multiple bus masters independently performing DMA operations., AX=8103h) LOCK FCBsee File Control Block (INT 6F, 10NET, AH=11h) LOCK FILE FOR USER (INT 7F, Alloy NTNX, AH=41h) LOCK FILE SET (OLD) (INT 21, Novell NetWare, AX=F204h/DX=0000h) LOCK FILE SET (INT 21, Novell NetWare, AX=F26Ah/DX=0000h) LOCK FILE SET (INT 21, Novell NetWare, SYNCHRONIZATION SERVICES, AH=CBh) LOCK HANDLE (INT 6F, 10NET, AH=07h) LOCK LINEAR REGION {protected mode} (INT 31, DPMIsee DOS Protected-Mode Interface 0.9+, AX=0600h) LOCK LOGICAL RECORD SET (OLD) (INT 21, Novell NetWare, AX=F20Ah/DX=0000h) LOCK LOGICAL RECORD SET (INT 21, Novell NetWare, AX=F26Ch/DX=0000h) LOCK LOGICAL RECORD SET (INT 21, Novell NetWare, SYNCHRONIZATION SERVICES, AH=D1h) LOCK LOGICAL VOLUME (INT 21, MS-DOS 7.0+, GENERIC IOCTL, AX=440Dh/CX=084Ah) LOCK MEDIA IN DRIVE {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.} (INT 2F, IOMEGA DRIVERS, AX=5711h/DX=496Fh) LOCK MULTIPLE CHANNELS (INT 7F, Alloy NTNX, MW386, CHANNEL CONTROL, AH=10h/CL=08h) LOCK PAGES IN MEMORY (INT 21, OS/386 VMM, AX=EB06h) LOCK PAGES IN MEMORY {protected mode} (INT 21, Phar Lap 386/DOS-Extender VMM, AX=251Ah) LOCK PHYSICAL RECORD SET (OLD) (INT 21, Novell NetWare, AX=F21Bh/DX=0000h) LOCK PHYSICAL RECORD SET (INT 21, Novell NetWare, AX=F26Eh/DX=0000h) LOCK PHYSICAL RECORD SET (INT 21, Novell NetWare, SYNCHRONIZATION SERVICES, AH=C2h) LOCK PHYSICAL VOLUME (INT 21, MS-DOS 7.0+, GENERIC IOCTL, AX=440Dh/CX=084Bh) LOCK REGION OF FILE {callout or callback, undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} (INT 2F, NETWORK REDIRECTOR (DOS 3.x only), AX=110Ah) LOCK SELECTOR {protected mode} (INT 31, DPMIsee DOS Protected-Mode Interface 0.9+, AX=0004h) LOCK SEMAPHORE (INT 67, PC-NET, Alloy NTNX, AH=01h) LOCK SEMAPHORE AND WAIT (INT 67, PC-NET, Alloy NTNX, AH=00h) LOCK SEMAPHORE FOR USER (INT 7F, Alloy MW386, AH=41h) LOCK SEMAPHORE, RETURN IMMEDIATELY (INT 6F, 10NET, AH=0Bh) LOCK/UNLOCK DRIVE (INT 13, IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911./MS INT 13 Extensions, AH=45h) LOCK/UNLOCK REGION OF FILE {callout or callback, undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} (INT 2F, NETWORK REDIRECTOR (DOS 4.0+), AX=110Ah) LOCK/UNLOCK SYSTEM, SPOOLER CONTROL (INT 7F, Alloy NTNX (Host), AH=05h) LOG AND/OR INITIALIZE VIRTUAL CIRCUIT (INT 6B, NPC NCSI EXTENDED SERIAL I/O, AH=16h) LOG FILE (OLD) (INT 21, Novell NetWare, AX=F203h/DX=0000h) LOG FILE (INT 21, Novell NetWare, AX=F269h/DX=0000h) LOG FILE (INT 21, Novell NetWare, SYNCHRONIZATION SERVICES, AH=EBh) LOG LOGICAL RECORD (INT 21, Novell NetWare, SYNCHRONIZATION SERVICES, AH=D0h) LOG NETWORK MESSAGE (INT 21, Novell NetWare, MESSAGE SERVICES, AH=E3h) LOG OFF (INT 16, pcANYWHERE III, AH=77h) LOG PHYSICAL RECORD (INT 21, Novell NetWare, SYNCHRONIZATION SERVICES, AH=BCh) LOG/LOCK PERSONAL FILE (FCBsee File Control Block) {obsolete} (INT 21, Novell NetWare, Alloy NTNX, AH=CAh) LOG/LOCK RECORD (FCBsee File Control Block) {obsolete} (INT 21, Novell NetWare, Alloy NTNX, AH=BFh) LOGICAL DRIVE FOR SINGLE-FLOPPY SYSTEM (A: / B:) (MEM 0050h:0004h, MS-DOS) LOGICAL DURATION REGISTER (LDR) (MEM FEE0h:00D0h, Pentium, LOCAL APIC) LOGIN (INT 6F, 10NET v5.0, AH=80h) LOGIN (INT 6F, 10NET, AH=00h) LOGIN AS VOLUME AUDITOR (INT 21, Novell NetWare, AX=F258h) LOGIN OBJECT (INT 21, Novell NetWare, AX=F217h/DX=0000h) LOGIN OBJECT ENCRYPTED (INT 21, Novell NetWare, AX=F217h) LOGIN SECURITY (INT 21, DR PalmDOS, GENERIC IOCTL, AX=440Dh/CX=EDC1h) LOGIN TO DRIVE (INT 2F, SecureDevice, AX=E200h) LOGIN TO FILE SERVER (INT 21, Novell NetWare, CONNECTION SERVICES, AH=E3h) LOGIN TO SERVER (INT 21, LANtastic, AX=5F81h) LOGITECH MOUSE - ??? Tries MMSeries, Baud 2400 (INT 33, AX=276Ch) LOGITECH MOUSE - GET VERSION??? (INT 33, AX=266Ch) LOGITECH MOUSE v6.10+ - ??? (INT 33, AX=136Ch) LOGITECH MOUSE v6.10+ - ??? (INT 33, AX=166Ch) LOGITECH MOUSE v6.10+ - ??? (INT 33, AX=176Ch) LOGITECH MOUSE v6.10+ - ??? (INT 33, AX=186Ch) LOGITECH MOUSE v6.10+ - ??? (INT 33, AX=196Ch) LOGITECH MOUSE v6.10+ - ??? (INT 33, AX=1C6Ch/=42h) LOGITECH MOUSE v6.10+ - ??? (INT 33, AX=4F01h) LOGITECH MOUSE v6.10+ - GET ??? (INT 33, AX=1A6Ch) LOGITECH MOUSE v6.10+ - GET ??? (INT 33, AX=4F00h) LOGITECH MOUSE v6.10+ - GET/SET ??? (INT 33, AX=146Ch) LOGITECH MOUSE v6.10+ - SET ??? (INT 33, AX=1B6Ch) LOGOFF (INT 6F, 10NET, AH=01h) LOGOUT (INT 6F, 10NET v5.0, AH=81h) LOGOUT AS VOLUME AUDITOR (INT 21, Novell NetWare, AX=F258h) LOGOUT FROM ALL SERVERS (INT 21, LANtastic v4.0+, AX=5F88h) LOGOUT FROM SERVER (INT 21, LANtastic, AX=5F82h) LOGOUT FROM VINES (INT 61, Banyan VINES, AX=0004h) LONG FILENAME - "FindClose" - TERMINATE DIRECTORY SEARCH (INT 21, Windows95, AX=71A1h) LONG FILENAME - "TRUENAME" - CANONICALIZE PATH (INT 21, Windows95, AX=7160h/CL=00h) LONG FILENAME FUNCTIONS (INT 21, Windows95, AH=71h) LONGWAIT (INT 14, I1541, AX=400Dh) LOOK UP CITY AND STATE FOR ZIPCODE (INT B3, ZIPKEY, AH=76h) LOOK UP STATE CODE FOR ZIPCODE (INT B3, ZIPKEY, AH=75h) LOOK UP ZIPCODES FOR A GIVEN CITY (INT B3, ZIPKEY, AH=79h) LOOK UP ZIPCODES FOR A GIVEN STATE AND CITY (INT B3, ZIPKEY, AH=78h) LOOKING KEYS (INT 10, HUNTER 16, AH=76h) LOOP COUNT FOR DELAYS (MEM 0040h:00ECh, Dell 4xxDE 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. A11) LOOP COUNT FOR HARD DISK TIMEOUT (MEM 0040h:00B0h, Phoenix 386 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. 1.10 10a) Loop Filter Gain (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/41h, ITT VDP 3108, Luma Soft Limiter) LOTUS 1-2-3 BRIDGE SERVICES {partially documented} (INT 60, HP 95LX System Manager, DI=0104h) Lotus CD/Networker GET DATA AREA (INT 2F, Multiplex, AX=D002h/BX=4D44h) LOW-LEVEL API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. (IPX(Internetwork Packet Exchange) A low-level layer of Novell's NetWare networking software.) INSTALLATION CHECK (INT 2F, Novell NetWare, AX=7A00h) LOW-LEVEL API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. (INT 64, Novell NetWare to v2.0a) LOW-LEVEL KEYBOARD HANDLER (INT 0B, HP 95LX) Low-Power Mode (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/AAh, ITT VPX 3214C/322xD) LOW-SPEED CLOCK (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 5Ch, AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. (PicoPower)) LOWER ALL MODEM CONTROL SIGNALS (INT 14, MBBIOS, AX=0D01h) LOWER PROGRAMMING VOLTAGE Vpp (INT 16, 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., BIOS-FLASH Interface, AX=E004h) LPTAbbreviation for Line PrinTer. port address on the UniRAM card by German magazine c't (PORTIBM PC Portable (uses same BIOS as XT) 0260-0268) LPTAbbreviation for Line PrinTer. port address on the UniRAM card by German magazine c't (PORTIBM PC Portable (uses same BIOS as XT) 02E0-02E8) LPTAbbreviation for Line PrinTer. port address on the UniRAM card by German magazine c't (PORTIBM PC Portable (uses same BIOS as XT) 02F0-02F8) LPTAbbreviation for Line PrinTer. port address on the UniRAM card by German magazine c't (PORTIBM PC Portable (uses same BIOS as XT) 03E0-03E7) LPTAbbreviation for Line PrinTer. port address on the UniRAM card by German magazine c't (PORTIBM PC Portable (uses same BIOS as XT) 03E8-03EF) LPT2 (PCIBM PC), VERTICAL RETRACE INTERRUPT (EGAEnhanced Graphics Adapter(Enhanced Graphics Adapter) IBMInternational Busiuness Machines's second color video board for the IBMInternational Busiuness Machines PCIBM PC family, capable of a maximum resolution of 640x350 pixels in 16 simultaneous colors of a total of 64 possible colors.,VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers.) {callout or callback} (INT 0A, IRQ2) LPTx v4.x INSTALLATION CHECK (INT 17, PRINTER, DX=0F5Fh) LPTx v5.x INSTALLATION CHECK (INT 17, PRINTER, DX=0ABCh) LPTx v6.x INSTALLATION CHECK (INT 17, PRINTER, DX=0B90h) LPTx v7.x INSTALLATION CHECK (INT 17, PRINTER, DX=0B91h) LSB of Word to 82335 RC1 roll compare register (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 1Bh, PHOENIX) LSB of Word to 82335 RC2 roll compare register (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 1Dh, PHOENIX) LSB word to Intel 82335 CC0 compare register (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 29h, PHOENIX) LSB word to Intel 82335 CC1 compare register (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 2Bh, PHOENIX) LUMA GAIN (CONTRAST), LOW BYTE (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. 88h/0Ch, Brooktree Bt819A) Luma Notch Frequency (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/30h, ITT VPX 32xx) Luma Notch Frequency (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/30h, ITT VDP 3108) Luma/Chroma Matching Delay (I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 86h/31h, ITT VPX 32xx) Luma/Chroma Matching Delay (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/14h, ITT VDP 3108) Luma/Chroma Matching Delay (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/31h, ITT VDP 3108) LUMINANCE BRIGHTNESS (I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 9Ch/19h, Philips SAA7110(A) ONE-CHIP FRONT-END) LUMINANCE CONTRAST (I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 9Ch/13h, Philips SAA7110(A) ONE-CHIP FRONT-END) LUMINANCE CONTROL (I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 9Ch/06h, Philips SAA7110(A) ONE-CHIP FRONT-END) M-Audio Adapter SUPPORT (INT 4D, IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911.) Mach 20 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.} (INT 2F, HIMEM.SYS, AX=4320h) Mach64 - ??? (PORTIBM PC Portable (uses same BIOS as XT) 1EEC) MACHINE CHECK EXCEPTION (INT 12, CPU-generated (Pentium +)) MACHINE CHECK EXCEPTION ADDRESS (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:0000h, Pentium, Pentium Pro) MACHINE CHECK EXCEPTION ADDRESS (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. 8000h:0000h, Pentium) MACHINE CHECK EXCEPTION TYPE (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:0001h, Pentium, Pentium Pro) MACHINE CHECK EXCEPTION TYPE (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. 8000h:0001h, Pentium) MACHINE CONFIGURATION (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 25h, COMPAQ 386) MACHINE SIGNATURE STRING (MEM F000h:FFE8h, Compaq) MACHINE TYPE CODE (MEM F000h:FFFEh) MACTEST - ??? {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.} (INT 65, NetSoft DOS-NET v1.20+, DX=4741h/BH=01h/AL=08h) MAIL interface {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.} (INT 2F, Banyan VINES v4+, AX=D703h) Main Picture Brightness (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/51h, ITT VDP 3108) Main Picture Contrast (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/61h, ITT VDP 3108) Main Picture Matrix Coefficient B-Y 1 (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/5Ch, ITT VDP 3108) Main Picture Matrix Coefficient B-Y 2 (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/54h, ITT VDP 3108) Main Picture Matrix Coefficient G-Y 1 (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/6Ch, ITT VDP 3108) Main Picture Matrix Coefficient G-Y 2 (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/64h, ITT VDP 3108) Main Picture Matrix Coefficient R-Y 1 (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/7Ch, ITT VDP 3108) Main Picture Matrix Coefficient R-Y 2 (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/74h, ITT VDP 3108) Main Test Register (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/39h, ITT VDP 3108) MAINFRAME INTERACTIVE SUPPORT (INT 10, VIDEO, XGA(Extended Graphics Array), AH=12h/BL=37h) MAJOR AXIS PIXEL COUNT 2 (PORTIBM PC Portable (uses same BIOS as XT) 96EA-96EB, S3 Trio64) MAJOR AXIS PIXEL COUNT (PORTIBM PC Portable (uses same BIOS as XT) 96E8-96E9, 8514/A and compatible) MAKE A SOUND PATTERN {partially documented} (INT 60, HP 95LX System Manager, DI=0802h) MAKE A SUBDIRECTORY {partially documented} (INT 60, HP 95LX System Manager, DI=0511h) MAKE BUFFER MOST RECENTLY USED {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.} (INT 2F, DOS 3.0+ internal, AX=120Fh) MAKE DIRECTORY (INT 21, Windows95, LONG FILENAME, AX=7139h) MAKE DISK BUFFER MOST-RECENTLY USED {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.} (INT 2F, DOS 3.0+ internal, AX=1207h) MAKE NAME ELIGIBLE FOR OUTSWAPPING (INT 88, APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC, AL=F7h) MAKE NAME IMMUNE FROM OUTSWAPPING (INT 88, APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC, AL=F6h) MAKE NAMED OBJECT AVAILABLE ON NETWORK (INT 21, STARLITE architecture, AX=5F07h) MAKE PROGRAM UNBREAKABLE (INT 2F, WinDOS v2.11, AX=AF06h) MAKE REMOTE DIRECTORY {callout or callback, undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} (INT 2F, IFSFUNC.EXE (DOS 4.x only), AX=1104h) MAKE REMOTE DIRECTORY {callout or callback, undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} (INT 2F, NETWORK REDIRECTOR, AX=1103h) MANUFACTURING DIAGNOSTICS PORTIBM PC Portable (uses same BIOS as XT) (PORTIBM PC Portable (uses same BIOS as XT) 0080) MANUFACTURING TEST (MEM 0040h:0012h, MCA) MANUFACTURING TEST INITIALIZATION FLAGS {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.} (MEM 0040h:0012h, ATIBM PC AT) MANUFACTURING TEST SCRATCH PAD {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.} (MEM 0040h:0015h, ATIBM PC AT) MANUFACTURING TEST SCRATCH PAD {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.} (MEM 0040h:0016h, ATIBM PC AT) MAP A FAKE ROOT DIRECTORY (INT 21, Novell NetWare shell 3.01, AX=E905h) MAP CONVENTIONAL MEMORY IN MEMORY BLOCK {protected mode} (INT 31, DPMIsee DOS Protected-Mode Interface 1.0+, AX=0509h) MAP DATA FILE ATIBM PC AT FILE OFFSET {protected mode} (INT 21, Phar Lap 386/DOS-Extender v4.1+, AX=252Bh/BH=0Bh) MAP DATA FILE {protected mode, partially documented} (INT 21, Phar Lap 386/DOS-Extender, AX=252Bh/BH=03h) MAP DEVICE IN MEMORY BLOCK {protected mode} (INT 31, DPMIsee DOS Protected-Mode Interface 1.0+, AX=0508h) MAP DIRECTORY NUMBER TO PATH (INT 21, Novell NetWare v3+, AX=F217h) MAP EMSsee Expanded Memory Specification PAGE FRAME (INT 62, BW-TCP, ETHDRV.SYS, AH=FEh) MAP EMSsee Expanded Memory Specification PAGE FRAME (INT 64, BW-NFS, BWRPC, AH=FEh) MAP HIGH MEMORY (INT 63, HP 100LX, AH=00h/AL=C400h) MAP IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. (INT 15, MultiDOS Plus, AH=17h) MAP LOCAL DRIVE LETTER TO REMOTE FILE SYSTEM (INT 21, STARLITE architecture, AX=5F05h) MAP LOGICAL 4K PAGE TO PHYSICAL SEGMENT (INT 67, RM386, AX=5DE6h) MAP MEMORY (INT 67, LIM EMSsee Expanded Memory Specification, AH=44h) MAP OBJECT TO NUMBER (OLD) (INT 21, Novell NetWare, CONNECTION SERVICES, AH=E3h) MAP PAGE INTO FRAME (INT 67, EEMS, AH=69h) MAP PAGES (INT 21, OS/386 VMM, AX=EB05h) MAP PHYSICAL MEMORY ATIBM PC AT END OF SEGMENT {protected mode} (INT 21, Phar Lap 386/DOS-Extender, AX=250Ah) MAP PHYSICAL PAGE TO PHYSICAL SEGMENT (INT 67, RM386, AX=5DE5h) MAP SEMAPHORE NAME TO NUMBER (INT 15, MultiDOS Plus, AH=1Ah) MAP/UNMAP MULTIPLE HANDLE PAGES (INT 67, LIM EMSsee Expanded Memory Specification 4.0, AH=50h) MARK ALL DISK BUFFERS UNREFERENCED {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.} (INT 2F, DOS 3.0+ internal, AX=120Eh) MARK PAGE AS DEMAND PAGING CANDIDATE {protected mode} (INT 31, DPMIsee DOS Protected-Mode Interface 0.9+, AX=0702h) MARK PAGES AS PAGING CANDIDATES {protected mode, partially documented} (INT 31, DPMIsee DOS Protected-Mode Interface 0.9+, AX=0700h) MARK REAL MODE REGION AS PAGEABLE {protected mode} (INT 31, DPMIsee DOS Protected-Mode Interface 0.9+, AX=0602h) MASTER 8259 MASK (used by VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers. init only) (MEM 0040h:00DBh, Digiboard MV/4) MATH COPROCESSOR (8087..80387) (PORTIBM PC Portable (uses same BIOS as XT) 00F0-00FF) MATH COPROCESSOR EXCEPTION (ATIBM PC AT and up) {callout or callback} (INT 75, IRQ13) Matrox Millenium (BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. v2.1) (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, AX=4F14h) Matrox Multiple Monitor Support v1.0 - ??? {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.} (INT 6D, AX=BD60h) Max Low-Frequency Compensation (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/4Dh, ITT VDP 3108, Luma Soft Limiter) Max Output Signal (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/49h, ITT VDP 3108, Luma Soft Limiter) Maximum (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/19h, ITT VDP 3108, Measurement Result) MAXIMUM WAIT STATES (PORTIBM PC Portable (uses same BIOS as XT) 6AEE, ATI Mach8/Mach32) MaxSBOS v0.21 - ??? (INT 7E, AH=01h) MaxSBOS v0.21 - ??? (INT 7E, AH=02h) MaxSBOS v0.21 - GET ??? (INT 7E, AH=00h) MAY BE USED IN FUTURE RELEASES (INT CD, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) MAY BE USED IN FUTURE RELEASES (INT CE, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) MAY BE USED IN FUTURE RELEASES (INT D0, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) MAY BE USED IN FUTURE RELEASES (INT D1, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) MAY BE USED IN FUTURE RELEASES (INT D2, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) MAY BE USED IN FUTURE RELEASES (INT D3, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) MAY BE USED IN FUTURE RELEASES (INT D4, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) MAY BE USED IN FUTURE RELEASES (INT D5, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) MAY BE USED IN FUTURE RELEASES (INT D6, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) MAY BE USED IN FUTURE RELEASES (INT D7, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) MAY BE USED IN FUTURE RELEASES (INT D8, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) MAY BE USED IN FUTURE RELEASES (INT D9, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) MAY BE USED IN FUTURE RELEASES (INT DA, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) MAY BE USED IN FUTURE RELEASES (INT DB, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) MAY BE USED IN FUTURE RELEASES (INT DC, STSC APL(A Programming Language) An interactive, mathematically- oriented language which is well-suited to manipulating matrices. Originally using greek letters and numerous special symbols, thus requiring a special display, versions are now available which use keywords in place of the special symbols.*PLUS/PCIBM PC) 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) (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. TEXT BUFFER (MEM B000h:0000h) Measured Color-Burst Amplitude {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.} (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/28h/A5h, ITT VPX 32xx, FP) Measured Sync Amplitude {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.} (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/28h/41h, ITT VPX 32xx, FP) Measurement ADC Status (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/1Eh, ITT VDP 3108) MEDIA EJECT INTERCEPT {callout or callback} (INT 15, IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911./MS INT 13 Extensions, AH=52h) Media Vision FM(Frequency Modulation) A method of encoding data as a series of magnetic flux reversals on disk or tape, commonly known as single-density recording. In frequency modulation, a series of clock pulses are written at regular intervals, with one data bit for each clock pulse. See also MFM, RLL..COM v4.1a+ - ??? {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.} (INT 65, SI=8005h) Media Vision FM(Frequency Modulation) A method of encoding data as a series of magnetic flux reversals on disk or tape, commonly known as single-density recording. In frequency modulation, a series of clock pulses are written at regular intervals, with one data bit for each clock pulse. See also MFM, RLL..COM v4.1a+ - GET ??? {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} (INT 65, SI=8004h) MEGA_EM v3.0+ - ??? (INT 81, Gravis UltraSound, AX=2015h) MegaEm - ??? (INT 81, Gravis UltraSound, AX=0202h) MegaEm - ??? (INT 81, Gravis UltraSound, AX=0400h) MegaEm - LOAD SAMPLE ??? (INT 81, Gravis UltraSound, AX=0300h) MELODY TONE GENERATOR (INT 61, Atari Portfolio, AH=16h) MEM 0040h:0088h - Olivetti 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. capabilities??? () MEM 0040h:00B6h - RESERVED FOR POSTsee Power-On Self-Test??? () MEM 0040h:00B9h - ??? () MEM 0040h:00D0h - INSTALLATION FLAGS {E?, H?, D?} () MEM C000h:0000h - Weitek "Abacus" math coprocessor () MEMORY ACCESS CONTROL (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 51h, AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985.) MEMORY ACCESS CONTROL (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 53h, AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985.) MEMORY APERTURE CONFIGURATION REGISTER (PORTIBM PC Portable (uses same BIOS as XT) 5EEE, ATI Mach32) MEMORY BOUNDARY REGISTER (PORTIBM PC Portable (uses same BIOS as XT) 42EE-42EF, ATI Mach32) Memory Config Register Control (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 Configuration Register #0 (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:0110h, Centaur (IDTsee Interrupt Descriptor Table) C6/WinChip2) Memory Configuration Register #1 (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:0111h, Centaur (IDTsee Interrupt Descriptor Table) C6/WinChip2) Memory Configuration Register #2 (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:0112h, Centaur (IDTsee Interrupt Descriptor Table) C6/WinChip2) Memory Configuration Register #3 (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:0113h, Centaur (IDTsee Interrupt Descriptor Table) C6/WinChip2) Memory Configuration Register #4 (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:0114h, Centaur (IDTsee Interrupt Descriptor Table) C6/WinChip2) Memory Configuration Register #5 (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:0115h, Centaur (IDTsee Interrupt Descriptor Table) C6/WinChip2) Memory Configuration Register #6 (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:0116h, Centaur (IDTsee Interrupt Descriptor Table) C6/WinChip2) Memory Configuration Register #7 (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:0117h, Centaur (IDTsee Interrupt Descriptor Table) C6/WinChip2) Memory Managers (CALL xxxxh:xxxxh) MEMORY VIEW SET ADDRESS (INT 2D, DTown Utilities v1.40+, AL=50h) MEMORY VIEW SET REFERENCE (INT 2D, DTown Utilities v1.40+, AL=51h) MEMORY {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} (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., AX=2780h/CL=03h) MEMORY-MAPPED 3D-LINE REGISTERS (MEM A000h:B0D4h, S3) MEMORY-MAPPED 3D-TRIANGLE REGISTERS (MEM A000h:B4D4h, S3) MEMORY-MAPPED BLT-FILL REGISTERS (MEM A000h:A4D4h, S3) MEMORY-MAPPED COLOR PALETTE REGISTERS (MEM A000h:A000h, S3) MEMORY-MAPPED CURRENT Y POSITION REGISTER (MEM A000h:82E8h, S3) MEMORY-MAPPED DMAsee Direct Memory Access REGISTERS (MEM A000h:8580h, S3) MEMORY-MAPPED ENHANCED REGISTERS (MEM A000h:86E8h, S3) MEMORY-MAPPED GRAPHICS PROCESSOR REGISTERS (MEM A000h:0000h, S3) MEMORY-MAPPED LINE REGISTERS (MEM A000h:A8D4h, S3) MEMORY-MAPPED MEMORY-PORT CONTROL REGISTERS (MEM A000h:8200h, S3 ViRGE) MEMORY-MAPPED PACKED REGISTERS (MEM A000h:8100h, S3) MEMORY-MAPPED PCI CONFIGURATION REGISTERS (MEM A000h:8000h, S3) MEMORY-MAPPED POLYGON-FILL REGISTERS (MEM A000h:ACD4h, S3) MEMORY-MAPPED REGISTERS (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 SUBSYSTEM REGISTERS (MEM A000h:8504h, S3 ViRGE) 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 (MEM A000h:83B0h, S3) MEMORYMAX CREATE ACCESS KEY (INT 2F, Novell DOS 7+, AX=12FFh/BX=0406h) MEMORYMAX DESTROY ACCESS KEY (INT 2F, Novell DOS 7+, AX=12FFh/BX=0506h) MEMORYMAX GET PAGE TABLE ENTRY (INT 2F, Novell DOS 7+, AX=12FFh/BX=0206h) MEMORYMAX 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.} (INT 2F, Novell DOS 7+, AX=12FFh/BX=0106h) MEMORYMAX SET PAGE TABLE ENTRY (INT 2F, Novell DOS 7+, AX=12FFh/BX=0306h) MENU CONTROL (INT 21, DoubleDOS, AH=E0h) MENU CONTROL (INT 21, DoubleDOS, AH=F0h) MESSAGE OFF (INT 50, PCIBM PC Thuis Organizer Shell, AX=000Ah) MESSAGE ON (INT 50, PCIBM PC Thuis Organizer Shell, AX=0009h) MESSENGER SERVICE (INT 2F, LAN Manager 2.0 DOS Enhanced MSRV.EXE, AH=42h) Micro Focus COBOL v3.1.31 internal - ??? {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} (INT 2F, AH=97h) Micro Focus COBOL v3.1.31 internal - ??? {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} (INT 2F, AH=98h) Micro Focus COBOL v3.1.31 internal - ??? {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} (INT 2F, AH=99h) Micro Focus COBOL v3.1.31 internal - ??? {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} (INT 2F, AH=9Ah) MICRO.EXE - ??? (INT 2F, AX=9402h) MICRO.EXE - CLEAR ??? FLAG (INT 2F, AX=9404h) MICRO.EXE - SET ??? FLAG (INT 2F, AX=9401h) MICRO.EXE - SET ??? FLAG (INT 2F, AX=9403h) MICROCHANNEL (PORTIBM PC Portable (uses same BIOS as XT) 00E0-00E7) Microchannel POSTsee Power-On Self-Test Diagnostic (write only) (PORTIBM PC Portable (uses same BIOS as XT) 0680-0681) MicroECLIPSE COPROCESSOR INTERFACE (INT 64, Data General DG10) MicroECLIPSE COPROCESSOR INTERFACE (INT 65, Data General DG10) MicroECLIPSE COPROCESSOR INTERFACE (INT 66, Data General DG10) MicroHelp Stay-Res Plus - ??? (INT 66, AX=FFFBh/BX=FFFBh) MICROSOFT COOPERATION WITH TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user. The name comes from the name of the DOS function call used to remain in memory after termination. {callout or callback, undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} (INT 16, Microsoft QBASIC internal, AX=55FEh) Microsoft Dynamic Link LibraryA collection of subroutines which are linked with a program at the time it is loaded into memory rather than permanently placed in the executable. This has the advantage of allowing a single copy of the subroutine library to reside on disk or in memory even when it is used by many programs. It also permits all programs using the DLL to be updated without recompiling simply by installing a new version of the library. manager (INT 3F) Microsoft EMM386.EXE (CALL xxxxh:xxxxh) Microsoft Network Transport Layer Interface (INT 5B) Microsoft Profiler (PROF.COM/VPROD.386) - "ProfFinish" {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.} (INT 2F, AX=4507h) Microsoft Profiler (PROF.COM/VPROD.386) - "ProfFlush" {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.} (INT 2F, AX=4506h) Microsoft Real-Time Compression Interface (MRCI) (CALL xxxxh:xxxxh) Microsoft TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user. The name comes from the name of the DOS function call used to remain in memory after termination. Specification (INT 15) Microsoft Windows VITD.386 Virtual Interval Timer (INT 66) Microsoft Word - TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user. The name comes from the name of the DOS function call used to remain in memory after termination. COOPERATION??? {callout or callback} (INT 16, AX=55FFh) MICROSOFT WORD COOPERATION WITH TSR(Terminate and Stay Resident) A program which remains in memory after terminating in order to provide services to other programs or the user. The name comes from the name of the DOS function call used to remain in memory after termination. {callout or callback} (INT 16, Microsoft Word internal, AX=5500h) MIDDLE 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. (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 4Dh, AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. (PicoPower)) MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer. AWAKE {obsolete} (INT 66, MIDPAK, AX=070Ah) MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer. SLEEP {obsolete} (INT 66, MIDPAK, AX=0709h) MIN/MAX EXTENDED/CONVIBM Convertible MEMORY USAGE {protected mode} (INT 21, Phar Lap 386/DOS-Ext VMM v3.0+, AX=2536h) Minimum (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/18h, ITT VDP 3108, Measurement Result) MINUTE ALARM (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 03h, RTCsee Real-Time Clock) MINUTES (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 02h, RTCsee Real-Time Clock) MIRRORS OF 03D4/03D5 (PORTIBM PC Portable (uses same BIOS as XT) 03D0-03D3, 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 (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)) MISCELLANEOUS CONTROL (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. 88h/0Bh, Brooktree Bt819A) MISCELLANEOUS REGISTERS (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 REQUESTS {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.} (INT 2F, DOS 4.0+ ANSI.SYS internal, AX=1A02h) MIXER CONTROL #1 (I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 9Ch/22h, Philips SAA7110(A) ONE-CHIP FRONT-END) MIXER CONTROL #2 (I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 9Ch/2Ch, Philips SAA7110(A) ONE-CHIP FRONT-END) MIXER CONTROL #3 (I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 9Ch/31h, Philips SAA7110(A) ONE-CHIP FRONT-END) MIXER CONTROL #4 (I2C(also IIC; the "2" is superscripted) Inter-Integrated Circuit Bus -- A moderate-speed serial communications bus originally invented by Philips in the early 1980s for consumer-electronics applications, such as inter-chip communication in a television set or high-end stereo. The I2C bus has recently appeared on PCs in video capture boards and similar devices, as well as (surprisingly) SDRAM DIMMs (for the on-board serial EEPROM). The ACCESS.bus is a derivative of the I2C bus which forms the physical layer of the Universal Serial Bus. Similary, the SMBus (System Management Bus) also uses I2C as its physical layer. 9Ch/33h, Philips SAA7110(A) ONE-CHIP FRONT-END) MIXER SETTINGS CHANGED BROADCAST {real mode, callout or callback} (INT 2F, InterWave Game API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes., AX=CD80h) MODE SET HOOK {callout or callback} (INT 15, Chips & Technologies '65530' 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., AX=5F33h) MODE SET HOOK {callout or callback} (INT 42, Chips & Technologies '65530' 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., AX=5F33h) MODE SWITCH (CALL xxxxh:xxxxh, DOS Protected-Mode InterfaceAn API which provides basic services for protected-mode programs to allocate memory, invoke real-mode software, etc. See also Virtual Control Program Interface.) MODE-SET OPTION CONTROL {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} (MEM 0040h:0089h, VIDEO (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.)) MODIFY ACTIVE CONNECTION PARAMETERS (INT 14, Connection Manager, AH=0Ah/DX=FFFFh) MODIFY DEFAULT CONNECTION PARAMETERS (INT 14, Connection Manager, AH=00h/DX=FFFFh) MODIFY FILE OR SUBDIRECTORY DOS INFORMATION (INT 21, Novell NetWare, AX=F257h/DX=0000h) MODIFY FLOW CONTROL (INT 14, ARTICOM, AX=800Ah) MODIFY MAXIMUM RIGHTS MASK (INT 21, Novell NetWare, AX=F216h/DX=0000h) MODIFY MAXIMUM RIGHTS MASK (INT 21, Novell NetWare, DIRECTORY SERVICES, AH=E2h) MODIFY MONITOR INFO (INT 10, HP Vectra EX-BIOS, AX=6F03h) MODIFY MS-DOS MEMORY BLOCK {protected mode} (INT 21, Phar Lap 386/DOS-Extender, AX=25C2h) MODIFY PAGE ATTRIBUTES {protected mode} (INT 31, DPMIsee DOS Protected-Mode Interface 1.0+, AX=0507h) MODIFY POWER CONSERVATION/MODEM CONFIGURATION (INT 15, Compaq SLT/286, AX=4601h) MODRES - ??? (INT 2F, AX=8224h) MODULE APIs (CALL xxxxh:xxxxh, WEB v4.02) MODULE REMOVED {callout or callback, protected mode, undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} (INT 41, MS Windows debugging kernel, AX=0065h) MONITOR NDS CONNECTION (INT 21, Novell NetWare v4+, AX=F268h) MONITOR SENSING HOOK {callout or callback} (INT 15, Chips & Technologies '65530' 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., AX=5F35h) MONITOR XMODEM DOWNLOAD (INT 16, Shamrock Software EMAIL, AX=4506h) MonitorEntry (INT E4, Logitech Modula v2.0, AX=0005h) MonitorExit (INT E4, Logitech Modula v2.0, AX=0006h) MONO SOUND OUTPUT (PORTIBM PC Portable (uses same BIOS as XT) 0388-0389, AdLib) MONTH (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 08h, RTCsee Real-Time Clock) MONTH ALARM (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 7Eh, AMD-645 Clock) Motherboard Chipset (SiS 85C501/85C502 shown) (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 40h, AWARD) Motherboard Chipset (SiS 85C501/85C502 shown) (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 45h, AWARD) MOTHERBOARD DISABLE REGISTER (PORTIBM PC Portable (uses same BIOS as XT) 0106, Chips & Technologies 64310) MOTOR STATUS (MEM 0040h:003Fh, DISKETTE) MOTOR TURN-OFF TIMEOUT COUNT (MEM 0040h:0040h, DISKETTE) MOUNT (INT 6F, 10NET v3.3+, AH=17h) mouse button 1 scancode/ASCII code (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 1Dh, AMSTRAD) mouse button 2 scancode/ASCII code (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 1Fh-20h, AMSTRAD) MOUSE HARDWARE RESET (INT 33, MS MOUSE v7.02+, AX=002Fh) Mouse Systems MOUSE DRIVER v7.01+ - ??? (INT 33, AX=0058h) Mouse Systems MOUSE DRIVER v7.01+ - ??? (INT 33, AX=0061h/BX=CDEFh) Mouse Systems MOUSE DRIVER v7.01+ - ??? (INT 33, AX=0072h/BX=ABCDh) Mouse Systems MOUSE DRIVER v7.01+ - CLEAR ??? FLAG (INT 33, AX=006Ch/BX=CDEFh) Mouse Systems MOUSE DRIVER v7.01+ - CONFIGURE MOUSE??? (INT 33, AX=0043h) Mouse Systems MOUSE DRIVER v7.01+ - GET ??? (INT 33, AX=0048h/BX=CDEFh) Mouse Systems MOUSE DRIVER v7.01+ - GET MOUSE BUTTONS??? (INT 33, AX=0067h) Mouse Systems MOUSE DRIVER v7.01+ - SET ??? FLAG (INT 33, AX=004Ch/BX=CDEFh) MOUSE X SCALING FACTOR (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 21h, AMSTRAD) MOUSE Y SCALING FACTOR (CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 22h, AMSTRAD) Mov Data to Main (User) Memory (OPCODE UMOV) Move 64 bits non temporal (OPCODE MOVNTQ) Move Aligned Four Packed Single-FP (OPCODE MOVAPS) Move Aligned Four Packed Single-FP Non Temporal (OPCODE MOVNTPS) MOVE BITMAP TO SCANLINE (INT 2F, Intel Image Processing Interface, AX=CD04h) Move Byte Mask to Integer (OPCODE PMOVMSKB) MOVE CURSOR TO GRAPHICS CO-ORDINATES (INT 10, HUNTER 16, AH=61h) Move Dwords (OPCODE MOVD) MOVE FILE DATA FROM DATA MIGRATION (INT 21, Novell NetWare, AX=F25Ah/DX=0000h) MOVE FILE DATA TO DATA MIGRATION (INT 21, Novell NetWare, AX=F25Ah) MOVE FILE FROM ONE PRINT SERVER TO ANOTHER (INT 21, TopWare Network OS v5.10+, AX=FFCAh) MOVE FILE POINTER {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.} (INT 2F, DOS 3.3+ internal, AX=1228h/BP=4200h) Move High Packed Single FP. (OPCODE MOVHPS) Move High to Low Packed Single-F.P. (OPCODE MOVHLPS) Move Low Packed Single FP. (OPCODE MOVLPS) Move Low to High Packed Single-F.P. (OPCODE MOVLHPS) Move Mask to Integer (OPCODE MOVMSKPS) MOVE MEMORY (INT 50, PCIBM PC Thuis Organizer Shell, AX=0011h) MOVE PEN (INT 5F, HP 95LX/100LX/200LX GRAPHICS PRIMITIVES, AH=08h) Move Qwords (OPCODE MOVQ) MOVE RECEIVED FILE (INT 2F, Communicating Applications SpecificationDCA and Intel's standard programmatic interface for sending and receiving FAXes via any of a number of internal FAX boards., AX=CB14h) Move Scalar Single-FP (OPCODE MOVSS) MOVE SEGMENT {callout or callback, protected mode, undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} (INT 41, MS Windows debugging kernel, AX=0051h) Move Stack Pointer After Bank Switched (OPCODE MOVSPA) Move Stack Pointer Before Bamk Switching (OPCODE MOVSPB) MOVE TO (INT 10, CU Writer v1.4, AH=B1h) Move Unaligned Four Packed Single-FP (OPCODE MOVUPS) MOVE VIRTUAL SCREEN ORIGIN (INT 61, Atari Portfolio, AH=11h) MOVE/EXCHANGE MEMORY REGION (INT 67, LIM EMSsee Expanded Memory Specification 4.0, AH=57h) MPAUSE - ??? (INT 62) MPU-401 MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer. UART(Universal Asyncronous Receiver/Transmitter) A peripheral device which converts a sequence of bytes into a serial bit stream at a programmable rate, and vice versa. This device is what makes an RS-232 serial port function. See also USART. (PORTIBM PC Portable (uses same BIOS as XT) 0300-0301) MPU-401 MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer. UART(Universal Asyncronous Receiver/Transmitter) A peripheral device which converts a sequence of bytes into a serial bit stream at a programmable rate, and vice versa. This device is what makes an RS-232 serial port function. See also USART. (PORTIBM PC Portable (uses same BIOS as XT) 0310-0311) MPU-401 MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer. UART(Universal Asyncronous Receiver/Transmitter) A peripheral device which converts a sequence of bytes into a serial bit stream at a programmable rate, and vice versa. This device is what makes an RS-232 serial port function. See also USART. (PORTIBM PC Portable (uses same BIOS as XT) 0320-0321) MPU-401 MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer. UART(Universal Asyncronous Receiver/Transmitter) A peripheral device which converts a sequence of bytes into a serial bit stream at a programmable rate, and vice versa. This device is what makes an RS-232 serial port function. See also USART. (PORTIBM PC Portable (uses same BIOS as XT) 0330-0331) MS MOUSE v8.10+ - ??? (INT 33, AX=012Eh) MS MOUSE v8.10+ - ??? (INT 33, AX=022Eh) MS Networks or NETBIOS - ??? (INT 2A, AX=2001h) MS SQL(Structured Query Language) Server/Sybase DBLIBRARY interface - ??? (INT 62, AH=07h/CX=FFFEh/DX=FFFFh) 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} (INT 2F, AX=1607h/BX=0015h/DX=0000h) MS Windows - "IFSMgr" VIRTUAL DEVICE - ??? CALLOUT {callout or callback} (INT 2F, AX=1607h/BX=0040h) MS Windows - "IFSMgr" VIRTUAL DEVICE - ??? CALLOUT {callout or callback} (INT 2F, AX=1607h/BX=0484h) MS Windows - "NWSUP" VIRTUAL DEVICE - ??? CALLOUT {callout or callback} (INT 2F, AX=1607h/BX=0487h) MS Windows - "PageFile" VIRTUAL DEVICE - GET LOCK BYTE {callout or callback} (INT 2F, AX=1607h/BX=0021h/CX=0000h) MS Windows - "PharLap" VIRTUAL DEVICE - ??? CALLOUT {callout or callback} (INT 2F, AX=1607h/BX=28A1h) MS Windows - "SIWVID" VIRTUAL DEVICE - ??? CALLOUT {callout or callback} (INT 2F, AX=1607h/BX=7A5Fh) MS Windows - "V86MMGR" 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} (INT 2F, AX=1607h/BX=0006h/CX=0000h) MS Windows - "VADLIBD" VIRTUAL DEVICE - ??? CALLOUT {callout or callback} (INT 2F, AX=1607h/BX=0446h) MS Windows - "VMD" VIRTUAL MOUSE 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} (INT 2F, AX=1607h/BX=000Ch) MS Windows - "VMPoll" VIRTUAL DEVICE - IDLE CALLOUT {callout or callback} (INT 2F, AX=1607h/BX=0018h/CX=0000h)