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 D4 - IBMInternational Busiuness MachinesInternational Busiuness Machines) A hardware, software and other service technology company founded in 1911. 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. - used while in interpreter INT D4 - PC-MOS/386 v5.01 - OBSOLETE FUNCTIONS {obsolete} (AH=00h) INT D4 - PC-MOS/386 v3.0+ - GET SYSTEM CONTROL BLOCK POINTER (AH=02h) INT D4 - PC-MOS/386 v5.01 - GET/SET EXTENDED DIRECTORY INFORMATION (AH=03h) INT D4 - PC-MOS/386 v3.0+ - GET TASK CONTROL BLOCK (AH=04h/BX=FFFFh) INT D4 - PC-MOS/386 v3.0+ - WAIT FOR EVENT (AH=07h) INT D4 - PC-MOS/386 v3.0+ - ENTER/LEAVE NATIVE 386 EXECUTION MODE (AH=10h) INT D4 - PC-MOS/386 v3.0+ - ALLOCATE NATIVE MODE MEMORY BLOCK (AH=11h) INT D4 - PC-MOS/386 v3.0+ - FREE NATIVE MODE MEMORY BLOCK (AH=12h) INT D4 - PC-MOS/386 v5.01 - GET ALIAS FOR SELECTOR (NATIVE MODE ONLY) (AH=13h) INT D4 - PC-MOS/386 v5.01 - SET/CLEAR IRQ(Interrupt ReQuest) A hardware line connected to the interrupt controller chip which signals that a CPU interrupt should be generated. RESERVATION (AH=16h) INT D4 - PC-MOS/386 v5.01 - GET TASK ID (AH=19h) INT D4 - PC-MOS/386 v5.01 - GET/SET TASK PRIORITY (AH=1Ah) INT D4 - PC-MOS/386 v5.01 - GET/SET TIME SLICE (AH=1Bh) INT D4 - PC-MOS/386 v5.01 - GET/SET KEYBOARD MODE (AH=1Ch) INT D4 - PC-MOS/386 v5.01 - GET CURRENT PROGRAM NAME (AH=1Dh) INT D4 - PC-MOS/386 v5.01 - GET CURRENT USERNAME AND SECURITY CLASS (AH=1Eh) INT D4 - PC-MOS/386 v5.01 - GET TASK PARTITION INFORMATION (AH=1Fh) INT D4 - PC-MOS/386 v5.01 - GET PORTIBM PC Portable (uses same BIOS as XT) AND BAUDRATE INFORMATION (AH=20h) INT D4 - PC-MOS/386 v5.01 - REMOVE A TASK (AH=21h) INT D4 - PC-MOS/386 v5.01 - ADD A TASK TO THE SYSTEM (AH=22h) INT D4 - PC-MOS/386 v5.01 - CHANGE TERMINAL DRIVER (AH=23h) INT D4 - PC-MOS/386 v5.01 - GET OPERATING SYSTEM SERIAL NUMBER {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.} (AH=24h) INT D4 - PC-MOS/386 v5.01 - IDENTIFY LOAD ADDRESS OF DEVICE DRIVER LOCATION (AH=25h) INT D4 - PC-MOS/386 v5.01 - GET SYSTEM CONTROL BLOCK SEGMENT/SELECTOR (AH=26h) INT D4 - PC-MOS/386 v5.01 - GET TASK CONTROL BLOCK SEGMENT/SELECTOR (AH=27h) INT D4 - PC-MOS/386 v5.01 - GET CONTROL BLOCK DATA FROM SCB OR TCB (AH=28h) INT D4 - PC-MOS/386 v5.01 - WRITE CONTROL BLOCK DATA INTO SCB OR TCB (AH=29h) INT D4 - PC-MOS/386 v5.01 - SWAP CONTROL BLOCK DATA OF SCB OR TCB (AH=2Ah) INT D4 - PC-MOS/386 v5.01 - GET/SET SPOOLER PARAMETERS (AH=2Ch) INT D4 - PC-MOS/386 v5.01 - GET MAXIMUM TASK SIZE (AH=2Dh)