RBIL61 - FLOPPY

CALL xxxxh:xxxxh - Plug-and-Play BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. v1.0A {#idx160107}{#idx160118}{#idx160279}{#idx160401}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 0Eh - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. PS/2IBM PS/2, any model - DIAGNOSTIC STATUS BYTE {#idx168109}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 10h - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. - FLOPPY DRIVE TYPE {#idx168206}{#idx168213}{#idx168215}{#idx168218}{#idx168221}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 11h - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. PS/2IBM PS/2, any model - FIRST FIXED DISK DRIVE TYPE BYTE (00-FFh) {#idx168273}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 13h - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. Hi-Flex 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. - ADVANCED SETUP OPTIONS {#idx168410}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 14h - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. - EQUIPMENT BYTE {#idx168416}{#idx168430}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 1Dh - MCA - SLOT 2 ADAPTER CARD ID {#idx168552}{#idx168555}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 23h - MCA - Programmable Option Select configuration byte 4 {#idx168690}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 2Dh - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. Hi-Flex 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. - CONFIGURATION OPTIONS {#idx168920}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 3Eh - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. - Extended CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. Checksum, High Byte {#idx169259}

CMOS(Complementary Metal-Oxide-Semiconductor) A type of integrated circuit design known for its low power consumption. 64h - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. (PicoPower) - BATTERY POWER {#idx169823}

Contributors {#idx164760}

INT 0E - IRQ6 - DISKETTE CONTROLLER {callout or callback} {#idx1135}

INT 11 - BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. - GET EQUIPMENT LIST {#idx7432}{#idx7501}{#idx7505}{#idx7517}{#idx7525}

INT 13 - 2M - FORMAT TRACK {#idx8344}

INT 13 - Bootable CD-ROM - INITIATE DISK EMULATION {#idx10685}

INT 13 - DISK - GET DISK TYPE (XTIBM PC XT 1986/1/10 or later,XT286IBM PC XT/286,ATIBM PC AT,PSIBM PS/2, any model) {#idx9046}

INT 13 - DISK - GET DRIVE PARAMETERS (PCIBM PC,XT286IBM PC XT/286,CONVIBM Convertible,PSIBM PS/2, any model,ESDI(Enhanced Small Device Interface) A disk drive interface type which was briefly popular before IDE took over. An ESDI drive can transfer data between the drive and controller at 10, 15, or 20 megabits per second, which is faster than an MFM or RLL controller but slower than what is possible with an IDE or SCSI drive. See also IDE.,SCSI(Small Computer Systems Interface) A system-independent expansion bus typically used to connect hard disks, tape drives, and CD-ROMs to a computer. A host adapter connects the SCSI bus to the computer's own bus. See also ESDI, IDE.) {#idx8535}{#idx8589}{#idx8597}{#idx8621}

INT 13 - DISK - GET STATUS OF LAST OPERATION {#idx7950}

INT 13 - DISK - READ SECTOR(S) INTO MEMORY {#idx8022}

INT 13 - DISK - RESET DISK SYSTEM {#idx7891}

INT 13 - DISK - VERIFY DISK SECTOR(S) {#idx8183}{#idx8188}

INT 13 - DISK - WRITE DISK SECTOR(S) {#idx8116}

INT 13 - FLOPPY - FORMAT TRACK {#idx8218}{#idx8239}{#idx8288}

INT 13 - FLOPPY DISK - DETECT DISK CHANGE (XTIBM PC XT 1986/1/10 or later,XT286IBM PC XT/286,ATIBM PC AT,PSIBM PS/2, any model) {#idx9085}

INT 13 - FLOPPY DISK - SET DISK TYPE FOR FORMAT (ATIBM PC AT,PSIBM PS/2, any model) {#idx9154}

INT 15 - AMIAmerican Megatrends, Inc.(American Megatrends, Inc.) A hardware, software and firmware company founded in 1985. PCI BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. v1.00.12.AX1T - CMOS RAMA small amount (typically 64 or 128 bytes) of memory in the system's real-time clock chip that is preserved by the clock's battery and is used for storing configuration information. See also Real-Time Clock. BITFIELD MANIPULATION {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.} {#idx23683}

INT 15 - DESQview v2.00+ - "NEWPROC" - START NEW APPLICATION IN NEW PROCESS {#idx16627}

INT 15 - HUNTER 16 - GET DISKETTE PORTIBM PC Portable (uses same BIOS as XT) {#idx20792}

INT 15 - HUNTER 16 - SET DISKETTE PORTIBM PC Portable (uses same BIOS as XT) {#idx20802}

INT 15 - OS HOOK - DEVICE BUSY (ATIBM PC AT,PSIBM PS/2, any model) {#idx21097}

INT 15 - OS HOOK - ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. TRACING CALLOUT (PS30IBM PS/2 Model 30 and below/286,PS50Z,PS95) {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated., callout or callback} {#idx22879}

INT 15 - 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. - DETERMINE CPU(Central Processing Unit) The microprocessor which executes programs on your computer. SPEED FOR DELAY LOOPS {#idx21320}

INT 15 - SYSTEM - BUILD ABIOS(Advanced BIOS) The IBMInternational Busiuness Machines XTIBM PC XT/286 and PS/2IBM PS/2, any model models with 80286 or higher processors contain two separate BIOSes. The ABIOS is a protected-mode BIOS which is used by OS/2. For machines without an ABIOS, such as the IBMInternational Busiuness Machines ATIBM PC AT, OS/2 loads the equivalent of the ABIOS from disk. see also CBIOS INITIALIZATION TABLE (PSIBM PS/2, any model) {#idx15731}

INT 15 - SYSTEM - GET CONFIGURATION (XTIBM PC XT >1986/1/10,ATIBM PC AT mdl 3x9,CONVIBM Convertible,XT286IBM PC XT/286,PSIBM PS/2, any model) {#idx21673}

INT 16 - Compaq 386 and newer - SET CPU(Central Processing Unit) The microprocessor which executes programs on your computer. SPEED {#idx27023}

INT 18 - DISKLESS BOOT HOOK (START CASSETTE BASIC(Beginner's All-purpose Symbolic Instruction Code) A programming language originally designed as a means of teaching FORTRAN. There are many variations of BASIC with differing capabilities; the majority are interpreted but compiled BASIC is becoming more popular. All genuine IBMInternational Busiuness Machines personal computers (including the latest PS/2IBM PS/2, any model models) come equipped with a cassette-based BASIC interpreter in ROM.) {#idx29899}

INT 19 - SYSTEM - BOOTSTRAP LOADER {#idx30137}{#idx30155}{#idx30368}

INT 1A - PCI BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. v2.0c+ - FIND PCI DEVICE {#idx32584}{#idx32593}

INT 1E - SYSTEM DATA - DISKETTE PARAMETERS {#idx39257}{#idx39275}{#idx39279}{#idx39287}

INT 21 - DOS 1+ - GET ALLOCATION INFORMATION FOR DEFAULT DRIVE {#idx42193}{#idx42195}{#idx42197}{#idx42199}{#idx42206}{#idx42208}{#idx42211}

INT 21 - DOS 1+ - SELECT DEFAULT DRIVE {#idx41748}

INT 21 - DOS 2+ - GET RETURN CODE (ERRORLEVEL) {#idx50928}

INT 21 - DOS 3.2+ - IOCTL - GENERIC BLOCK DEVICE REQUEST {#idx49103}{#idx49106}{#idx49110}{#idx49112}{#idx49194}

INT 21 - DOS 3.2+ - IOCTL - SET LOGICAL DRIVE MAP {#idx49487}

INT 21 - FBOOT v2.13 - PERFORM FAST BOOTSTRAP {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.} {#idx50651}

INT 25 - DOS 1+ - ABSOLUTE DISK READ (except partitions > 32M) {#idx72241}

INT 2F - DOS 3.2+ - SET DISK INTERRUPT HANDLER {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx78450}

INT 2F - DOS 5+ - FLOPPY-DISK LOGICAL DRIVE CHANGE NOTIFICATION {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.} {#idx84187}{#idx84200}

INT 2F - HyperDisk v4.50+ - GET CURRENT CACHE STATE {#idx94589}{#idx94596}

INT 2F - MS Windows - GET DEVICE API(Application Program[ming] Interface) The defined set of calls which a program may make to interact with or request services of the operating system or environment under which it is running. Because the inputs and outputs of the calls are well-defined, a program using the API can continue using the identical calls even if the internal organization of the program providing the API changes. ENTRY POINT {#idx79775}{#idx79856}{#idx80098}

INT 2F - NORTON UTILITIES 5.0+ TSRs - INSTALLATION CHECK/STATUS REPORT {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.} {#idx96166}

INT 2F - WANG_ER.COM - INSTALLATION CHECK {undocumentedInformation about a product which is not publicly available from the manufacturer, and must be determined by reverse-engineering (disassembly, trial-and-error, etc.). Undocumented information tends to change -- often dramatically -- between successive revisions of a product, since the manufacturer has no obligation to maintain compatibility in behavior which is not explicitly stated.} {#idx91036}

INT 2F - WinDOS v2.11 - TURN OFF ONLINE MODE {#idx89926}

INT 2F - WinDOS v2.11 - TURN ON ONLINE MODE {#idx89918}

INT 46 - Z100 - Master 8259 - Keyboard, Retrace, and Light Pen {#idx100511}

INT 4B - Tandy 2000 - EQUIPMENT DETERMINATION {#idx101420}

INT 4D - TI Professional PCIBM PC - DISK - RESET DISK SYSTEM {#idx101707}

INT 4F - TI Professional PCIBM PC - SYSTEM CONFIGURATION CALL {#idx101982}{#idx101985}{#idx101989}{#idx101992}

INT 56 - TI Professional PCIBM PC - RESERVED FOR FUTURE USE {#idx102895}

INT 60 - TI Professional PCIBM PC - SYSTEM ROM(Read-Only Memory) A memory for program storage which may not be changed by the program as it runs. DATA AREA POINTER (NOT A VECTOR!) {#idx103908}

INT 63 - Adaptec and OMTI controllers - DRIVE 0 DATA {#idx114013}{#idx114019}

INT 66 - TI Professional PCIBM PC - SYSTEM INFORMATION (NOT A VECTOR!) {#idx114966}

INT F1 - NetWare Remote BootTo start up the computer or operating system. The term "boot" is a contraction of "bootstrap", which in turn comes from the expression "to lift oneself by one's boot straps." The ROM BIOS on IBMInternational Busiuness Machines PCs and compatibles reads in the first sector of the disk, which contains a short (less than 500 bytes) program that reads in a portion of the operating system, which in turn reads in the remainder of the operating system. See also IPL. - INSTALLATION CHECK (NOT A VECTOR!) {#idx132014}

INT FD - Sanyo MBC-550/555 - IRQ5 - FLOPPY DISK CONTROLLER {#idx132684}

MEM 0040h:000Eh - SEGMENT OF EXTENDED BIOS(Basic Input/Output System) A set of standardized calls giving low-level access to the hardware. The BIOS is the lowest software layer above the actual hardware and serves to insulate programs (and operating systems) which use it from the details of accessing the hardware directly. DATA SEGMENT (PS/2IBM PS/2, any model, newer BIOSes) {#idx160888}

MEM 0040h:0010h - INSTALLED HARDWARE {#idx160968}{#idx161006}

MEM 0040h:0042h - DISK - FLOPPY/HARD DRIVE STATUS/COMMAND BYTES {#idx161260}

MEM 0040h:00D0h - INSTALLATION FLAGS {E?, H?, D?} {#idx162453}{#idx162459}

MEM 0040h:00D5h - EHD floppy - NUMBER OF FLOPPY DISK CONTROLLERS IN SYSTEM {#idx162489}

MEM 0040h:00D6h - EHD floppy - AND-BITS TO ADJUST PORTIBM PC Portable (uses same BIOS as XT) ADDRESS {#idx162503}

MEM 0040h:00D7h - EHD floppy - DRIVE 0 DISKETTE MEDIA STATE {#idx162530}

MEM 0040h:00D8h - EHD floppy - DRIVE 1 DISKETTE MEDIA STATE {#idx162560}

MEM 0040h:00D9h - EHD floppy - DRIVE 2 DISKETTE MEDIA STATE {#idx162583}

MEM 0040h:00DAh - EHD floppy - DRIVE 3 DISKETTE MEDIA STATE {#idx162601}

MEM 0040h:00DBh - EHD floppy - DRIVE 0 NEEDS RECALIBARATION {#idx162616}

MEM 0040h:00DCh - EHD floppy - DRIVE 1 NEEDS RECALIBARATION {#idx162641}

MEM 0040h:00DDh - EHD floppy - DRIVE 2 NEEDS RECALIBARATION {#idx162655}

MEM 0040h:00DEh - EHD floppy - DRIVE 3 NEEDS RECALIBARATION {#idx162663}

MEM 0040h:00E3h - EHD floppy - DRIVE 0 DISKETTE TYPE (from jumpers) {#idx162690}{#idx162698}

MEM 0040h:00E4h - EHD floppy - DRIVE 1 DISKETTE TYPE (from jumpers) {#idx162704}

MEM 0040h:00E5h - EHD floppy - DRIVE 2 DISKETTE TYPE (from jumpers) {#idx162714}

MEM 0040h:00E6h - EHD floppy - DRIVE 3 DISKETTE TYPE (from jumpers) {#idx162741}

MEM 0050h:0004h - MS-DOS - LOGICAL DRIVE FOR SINGLE-FLOPPY SYSTEM (A: / B:) {#idx162770}

PORTIBM PC Portable (uses same BIOS as XT) 0000-001F - DMAsee Direct Memory Access 1 - FIRST DIRECT MEMORY ACCESS CONTROLLER (8237) {#idx132953}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0023 - CHIP SET DATA {#idx134439}{#idx134442}{#idx134498}{#idx134502}{#idx134506}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0023 - Intel 82358DT 'Mongoose' EISA(Enhanced Industry-Standard Architecture) A 32-bit superset of the IBMInternational Busiuness Machines ATIBM PC AT's expansion bus (which is now known as the ISA or Industry-Standard Architecture bus). CHIPSET - 82359 DRAM(Dynamic Random Access Memory) RAM memory which essentially consists of a tiny capacitor for each bit of memory. Since capacitors do not hold a charge indefinitely, DRAM must be constantly refreshed to avoid losing its contents. Also, the process of reading the contents of the memory are destructive, meaning extra time must be spent restoring the contents of memory addresses which are accessed, so DRAM is slower than SRAM. See also Refresh, SRAM. CONTROLLER {#idx133599}{#idx133729}{#idx133736}{#idx133742}

PORTIBM PC Portable (uses same BIOS as XT) 0022-0024 - CHIPSET FROM PICO POWER, UMC or PCChips {#idx135467}{#idx137165}{#idx137227}{#idx137230}{#idx137235}

PORTIBM PC Portable (uses same BIOS as XT) 0024-0027 - PicoPower Vesuvius - V1-LS {#idx138324}{#idx138363}{#idx138401}{#idx138596}

PORTIBM PC Portable (uses same BIOS as XT) 0060-006F - KEYBOARD CONTROLLER 804x (8041, 8042) (or PPI (8255) on PCIBM PC,XTIBM PC XT) {#idx139579}

PORTIBM PC Portable (uses same BIOS as XT) 0080 - MANUFACTURING DIAGNOSTICS PORTIBM PC Portable (uses same BIOS as XT) {#idx140555}{#idx140630}{#idx140650}{#idx140741}{#idx140953}{#idx140995}{#idx141006}

PORTIBM PC Portable (uses same BIOS as XT) 00A8-00A9 - Via VT82C496G "Pluto" - CONFIGURATION REGISTERS {#idx141480}{#idx141491}{#idx141648}

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 {#idx142505}

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) {#idx145868}

PORTIBM PC Portable (uses same BIOS as XT) 035A-035B - Adaptec AH1520 jumper settings {#idx146638}

PORTIBM PC Portable (uses same BIOS as XT) 0370-0377 - FDC 2 (2nd Floppy Disk Controller) first FDC at 03F0 {#idx146816}{#idx146821}

PORTIBM PC Portable (uses same BIOS as XT) 03E0-03E1 - Cirrus Logic CL-PD6710/6722/6729 - PC-CARD HOST ADAPTER {#idx150855}

PORTIBM PC Portable (uses same BIOS as XT) 03F0-03F1 - PCTech RZ1000 IDE(Integrated Drive Electronics) A type of disk drive interface which essentially extends the PCIBM PC's expansion bus all the way to the drive and places the drive controller on the disk drive itself. See also ESDI. controller {#idx151633}

PORTIBM PC Portable (uses same BIOS as XT) 03F0-03F7 - FDC 1 (1st Floppy Disk Controller) second FDC at 0370 {#idx151240}{#idx151245}

PORTIBM PC Portable (uses same BIOS as XT) xxxx - AMD-645 - Power Management Registers {#idx158278}{#idx158318}{#idx158333}