RBIL61 - status register

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 09h - RTCsee Real-Time Clock - YEAR {#idx168002}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 0Ah - RTCsee Real-Time Clock - STATUS REGISTER A (read/write) (usu 26h) {#idx168004}{#idx168010}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 0Bh - RTCsee Real-Time Clock - STATUS REGISTER B (read/write) {#idx168029}{#idx168034}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 0Ch - RTCsee Real-Time Clock - STATUS REGISTER C (Read only) {#idx168055}{#idx168059}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 0Dh - RTCsee Real-Time Clock - STATUS REGISTER D (read only) {#idx168069}{#idx168073}

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 - ITT VPX 32xx - FPRAM data transfer {#idx170387}{#idx170435}

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/99h - ITT VPX 3220 - FP - "InfoWord" status register {#idx170655}{#idx170658}

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/F1h - ITT VPX 32xx - FP - "InfoWord" status register {#idx170754}{#idx170757}

INT 10 - VIDEO - Video7 VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers.,VEGA VGAVideo Graphics Array(Video Graphics Array) The video adapter introduced with the IBMInternational Busiuness Machines PS/2IBM PS/2, any model series of computers.,HP EX-BIOS - GET MONITOR INFO {#idx5658}{#idx5665}{#idx5679}{#idx5688}

INT 13 - DISK - GET STATUS OF LAST OPERATION {#idx8000}

INT 14 - ARTICOM - GET REDIRECTED PORTIBM PC Portable (uses same BIOS as XT) INFORMATION {#idx14231}

INT 14 - COURIERS.COM - CHECK IF PORTIBM PC Portable (uses same BIOS as XT) BUSY {#idx14298}{#idx14302}

INT 15 - Amstrad PC1512 - WRITE DATA TO NON-VOLATILE RAM(Random Access Memory) See also DRAM, SRAM. {#idx15452}{#idx15455}{#idx15458}{#idx15463}{#idx15486}{#idx15492}{#idx15502}

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. {#idx32872}{#idx32882}{#idx32908}{#idx32941}{#idx32980}{#idx33003}{#idx33041}{#idx33073}

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) {#idx33400}{#idx33405}

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) {#idx35565}{#idx36162}{#idx36698}{#idx36770}{#idx36938}{#idx36947}{#idx37221}{#idx37251}{#idx37592}{#idx37777}{#idx37782}{#idx37792}{#idx37797}{#idx37845}{#idx37854}{#idx37872}{#idx37894}{#idx38164}{#idx38359}{#idx38363}{#idx38371}{#idx38491}

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) {#idx34233}{#idx34280}

INT 1A - PCI BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. v2.0c+ - READ CONFIGURATION DWORDDoubleword; four bytes. Commonly used to hold a 32-bit segment:offset or selector:offset address. (VIA Technologies devices) {#idx34546}{#idx34744}{#idx35174}

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. {#idx31976}{#idx31995}{#idx32124}{#idx32130}

MEM 0040h:0042h - DISK - FLOPPY/HARD DRIVE STATUS/COMMAND BYTES {#idx161341}{#idx161347}

MEM 0040h:0043h - DISK CONTROLLER STATUS REGISTER 1 {#idx161366}{#idx161373}

MEM 0040h:0044h - DISK CONTROLLER STATUS REGISTER 2 {#idx161385}{#idx161391}

MEM A000h:8504h - S3 ViRGE - MEMORY-MAPPED SUBSYSTEM REGISTERS {#idx163354}

MEM FEE0h:0280h - Pentium + - LOCAL APIC - ERROR STATUS REGISTER {#idx164578}{#idx164584}

Notes {#idx167981}

Opcodes List {#idx175057}

PORTIBM PC Portable (uses same BIOS as XT) 0000-001F - DMAsee Direct Memory Access 1 - FIRST DIRECT MEMORY ACCESS CONTROLLER (8237) {#idx132935}{#idx132986}

PORTIBM PC Portable (uses same BIOS as XT) 0010-001F - DMAsee Direct Memory Access CONTROLLER (8237) ON PS/2IBM PS/2, any model MODEL 60 & 80 {#idx133050}{#idx133053}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0024 - CHIPSET FROM PICO POWER, UMC or PCChips {#idx136806}{#idx136809}{#idx137207}{#idx137265}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0025 - INTEL 82360SL CHIPSET (FOR 386SL) {#idx137355}

PORTIBM PC Portable (uses same BIOS as XT) 0024-0026 - PicoPower Vesuvius - V3-LS {#idx137516}{#idx137520}

PORTIBM PC Portable (uses same BIOS as XT) 0024-0027 - PicoPower Vesuvius - V1-LS {#idx137783}{#idx137861}{#idx137865}{#idx137968}{#idx138269}{#idx138288}

PORTIBM PC Portable (uses same BIOS as XT) 0080 - MANUFACTURING DIAGNOSTICS PORTIBM PC Portable (uses same BIOS as XT) {#idx140491}

PORTIBM PC Portable (uses same BIOS as XT) 00C0-00DF - DMAsee Direct Memory Access 2 - SECOND DIRECT MEMORY ACCESS CONTROLLER (8237) {#idx141935}{#idx141963}

PORTIBM PC Portable (uses same BIOS as XT) 00F0-00F5 - PCjr Disk Controller {#idx142185}

PORTIBM PC Portable (uses same BIOS as XT) 0140-014F - SCSI(Small Computer Systems Interface) A system-independent expansion bus typically used to connect hard disks, tape drives, and CD-ROMs to a computer. A host adapter connects the SCSI bus to the computer's own bus. See also ESDI, IDE. (alternate Small Computer System Interface) adapter {#idx142456}{#idx142493}{#idx142520}{#idx142524}{#idx142529}{#idx142542}{#idx142554}{#idx142562}{#idx142595}

PORTIBM PC Portable (uses same BIOS as XT) 01F0-01F7 - HDC 1 (1st Fixed Disk Controller) (ISA(Industry-Standard Architecture) The expansion bus used by the IBMInternational Busiuness Machines PCIBM PC/ATIBM PC AT. See also EISA., EISA(Enhanced Industry-Standard Architecture) A 32-bit superset of the IBMInternational Busiuness Machines ATIBM PC AT's expansion bus (which is now known as the ISA or Industry-Standard Architecture bus).) {#idx142891}{#idx142919}

PORTIBM PC Portable (uses same BIOS as XT) 0240-024F - Gravis Ultra Sound by Advanced Gravis {#idx143821}{#idx143846}

PORTIBM PC Portable (uses same BIOS as XT) 02F8-02FF - serial port, same as 02E8, 03E8 and 03F8 (COM2) {#idx144653}

PORTIBM PC Portable (uses same BIOS as XT) 0330-0331 - MPU-401 MIDI(Musical Instrument Digital Interface) A standardized interface for controlling musical instruments with a computer. UART(Universal Asyncronous Receiver/Transmitter) A peripheral device which converts a sequence of bytes into a serial bit stream at a programmable rate, and vice versa. This device is what makes an RS-232 serial port function. See also USART. {#idx145524}{#idx145532}

PORTIBM PC Portable (uses same BIOS as XT) 0330-0333 - Adaptec 154xB/154xC SCSI(Small Computer Systems Interface) A system-independent expansion bus typically used to connect hard disks, tape drives, and CD-ROMs to a computer. A host adapter connects the SCSI bus to the computer's own bus. See also ESDI, IDE. adapter (default address) {#idx145604}{#idx145610}{#idx145613}{#idx145662}{#idx145665}{#idx145675}{#idx145696}{#idx145806}{#idx145809}

PORTIBM PC Portable (uses same BIOS as XT) 0340-034F - Gravis Ultra Sound by Advanced Gravis {#idx146195}

PORTIBM PC Portable (uses same BIOS as XT) 0340-0357 - RTCsee Real-Time Clock (1st Real Time Clock for XTIBM PC XT) {#idx146321}

PORTIBM PC Portable (uses same BIOS as XT) 0340-035F - Adaptec AHA-152x SCSI(Small Computer Systems Interface) A system-independent expansion bus typically used to connect hard disks, tape drives, and CD-ROMs to a computer. A host adapter connects the SCSI bus to the computer's own bus. See also ESDI, IDE. adapter {#idx146360}{#idx146364}{#idx146368}{#idx146370}{#idx146377}{#idx146390}{#idx146393}{#idx146457}{#idx146474}{#idx146501}{#idx146507}{#idx146517}{#idx146571}

PORTIBM PC Portable (uses same BIOS as XT) 0370-0377 - FDC 2 (2nd Floppy Disk Controller) first FDC at 03F0 {#idx146876}

PORTIBM PC Portable (uses same BIOS as XT) 0380-038C - 2nd SDLC (Synchronous Data Link Control) adapter {#idx147037}{#idx147077}

PORTIBM PC Portable (uses same BIOS as XT) 03A0-03AF - 1st BSC (Binary Synchronous Communication) adapter {#idx147588}

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) {#idx147737}{#idx147805}{#idx147854}

PORTIBM PC Portable (uses same BIOS as XT) 03BC-03BF - PARALLEL PRINTER PORTIBM PC Portable (uses same BIOS as XT) (MDA(Monochrome Display Adapter) A text-only video adapter introduced together with the original IBMInternational Busiuness Machines PCIBM PC. See also CGAColor Graphics Adapter, HGC.'s LPT1) {#idx147930}

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 {#idx147999}

PORTIBM PC Portable (uses same BIOS as XT) 03D4-03D5 - COLOR VIDEO - CRT CONTROL REGISTERS {#idx148971}{#idx148998}

PORTIBM PC Portable (uses same BIOS as XT) 03D8-03DF - COLOR VIDEO - CRT MODE AND STATUS REGISTERS {#idx150430}{#idx150443}{#idx150524}

PORTIBM PC Portable (uses same BIOS as XT) 03F0-03F7 - FDC 1 (1st Floppy Disk Controller) second FDC at 0370 {#idx151305}{#idx151313}{#idx151325}{#idx151327}{#idx151329}{#idx151512}{#idx151566}{#idx151573}{#idx151580}

PORTIBM PC Portable (uses same BIOS as XT) 03F8-03FF - Serial port (8250,8250A,8251,16450,16550,16550A,etc.) COM1 {#idx151733}{#idx151736}{#idx151855}{#idx151871}

PORTIBM PC Portable (uses same BIOS as XT) 0401-040B - EISA(Enhanced Industry-Standard Architecture) A 32-bit superset of the IBMInternational Busiuness Machines ATIBM PC AT's expansion bus (which is now known as the ISA or Industry-Standard Architecture bus). DMAsee Direct Memory Access Controller {#idx151903}{#idx151918}

PORTIBM PC Portable (uses same BIOS as XT) 040A-043F - Intel 82378ZB embedded DMAsee Direct Memory Access controller {#idx151950}{#idx151961}

PORTIBM PC Portable (uses same BIOS as XT) 0530-0537 - Windows Sound System ("WSS") (default address) {#idx152202}{#idx152213}{#idx152223}{#idx152270}{#idx152307}

PORTIBM PC Portable (uses same BIOS as XT) 0601 - Headland HL21, Acer M5105 chipsets - SYSTEM CONTROL {#idx152469}

PORTIBM PC Portable (uses same BIOS as XT) 0F8E-0F8F - OPTi "Vendetta" (82C750) CHIPSET - Audio Module Data Registers {#idx153615}{#idx153618}{#idx153625}{#idx153698}{#idx153710}{#idx153721}

PORTIBM PC Portable (uses same BIOS as XT) 0xx0-0xxF - Intel 82595TX - ISA(Industry-Standard Architecture) The expansion bus used by the IBMInternational Busiuness Machines PCIBM PC/ATIBM PC AT. See also EISA./PCMCIA Ethernet Controller {#idx153767}{#idx153798}

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 {#idx154116}{#idx154120}{#idx154124}{#idx154126}{#idx154151}{#idx154157}{#idx154227}{#idx154304}{#idx154342}{#idx154367}

PORTIBM PC Portable (uses same BIOS as XT) 42E8 - 8514/A and hardware-compatible video cards {#idx155357}

PORTIBM PC Portable (uses same BIOS as XT) xxxx - AMD-645 - Power Management Registers {#idx158182}{#idx158213}{#idx158248}

PORTIBM PC Portable (uses same BIOS as XT) xxxx - Ensoniq AudioPCI ES1370 - CONTROL REGISTERS {#idx158380}{#idx158385}{#idx158442}{#idx158474}{#idx158593}{#idx158598}{#idx158608}{#idx158647}{#idx158770}

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 {#idx157829}{#idx157845}{#idx157908}{#idx157912}{#idx157916}{#idx157918}{#idx157946}{#idx157952}{#idx158701}{#idx158705}{#idx158715}