00 - CPU-generated - DIVIDE ERROR
 01 - CPU-generated - SINGLE STEP
 01 - CPU-generated (80386+) - DEBUGGING EXCEPTIONS
 02 - external hardware - NON-MASKABLE INTERRUPT
 03 - CPU-generated - BREAKPOINT
 0309 - Soft-ICE BACK DOOR COMMANDS
 04 - CPU-generated - INTO DETECTED OVERFLOW
 05 - PRINT SCREEN
 05 - CPU-generated (80186+) - BOUND RANGE EXCEEDED
 06 - CPU-generated (80286+) - INVALID OPCODE
 06 - HP 95LX - SLEEP/WAKEUP
 07 - CPU-generated (80286+) - PROCESSOR EXTENSION NOT AVAILABLE
 08 - IRQ0 - SYSTEM TIMER
 08 - CPU-generated (80286+) - DOUBLE EXCEPTION DETECTED
 09 - (list)
 0A - (list)
 0B - (list)
 0C - (list)
 0D - (list)
 0E - (list)
 0F - IRQ7 - PARALLEL PRINTER
 0F - HP 95LX - REAL-TIME CLOCK
 10 - (list)
 11 - (list)
 12 - (list)
 13 - (list)
 14 - (list)
 15a - (list)
 15b - (list)
 16 - (list)
 17 - (list)
 18 - (list)
 19 - SYSTEM - BOOTSTRAP LOADER
 1A - (list)
 1B - KEYBOARD - CONTROL-BREAK HANDLER
 1C - TIME - SYSTEM TIMER TICK
 1D - SYSTEM DATA - VIDEO PARAMETER TABLES
 1E - SYSTEM DATA - DISKETTE PARAMETERS
 1F - SYSTEM DATA - 8x8 GRAPHICS FONT
 20 - Minix - SEND/RECEIVE MESSAGE
 20 - DOS 1+ - TERMINATE PROGRAM
 21a - (list) 00-44
 21b - (list) 45-83
 21c - (list) 84-E2
 21d - (list) E3-FF
 22 - DOS 1+ - PROGRAM TERMINATION ADDRESS
 23 - DOS 1+ - CONTROL-C/CONTROL-BREAK HANDLER
 24 - DOS 1+ - CRITICAL ERROR HANDLER
 25 - (list)
 26 - DOS 1+ - ABSOLUTE DISK WRITE (except partitions > 32M)
 26 - DOS 3.31+ - ABSOLUTE DISK WRITE (>32M hard-disk partition)
 27 - DOS 1+ - TERMINATE AND STAY RESIDENT
 28 - DOS 2+ - DOS IDLE INTERRUPT
 29 - DOS 2+ - FAST CONSOLE OUTPUT
 2A - (list)
 2B - DOS 2+ - RESERVED
 2C - DOS 2+ - RESERVED
 2C - STARLITE architecture - KERNEL API
 2D - DOS 2+ - RESERVED
 2D - ALTERNATE MULTIPLEX INTERRUPT SPECIFICATION (AMIS) [v3.5]
 2E - DOS 2+ - PASS COMMAND TO COMMAND INTERPRETER FOR EXECUTION
 2E - 4DOS v2.x-3.03 SHELL2E.COM - UNINSTALL
 2Fa - (list) 00-15
 2Fb - (list) 16-81
 2Fc - (list) 82-D7
 2Fd - (list) D8-FF
 30 - (NOT A VECTOR!) - DOS 1+ - FAR JMP instruction for CP/M-style calls
 31 - (list)
 32 - VIRUS - reportedly used by "Tiny" Viruses
 33 - (list)
 34 - FLOATING POINT EMULATION - OPCODE D8h
 35 - FLOATING POINT EMULATION - OPCODE D9h
 36 - FLOATING POINT EMULATION - OPCODE DAh
 37 - FLOATING POINT EMULATION - OPCODE DBh
 38 - (list)
 39 - FLOATING POINT EMULATION - OPCODE DDh
 3A - FLOATING POINT EMULATION - OPCODE DEh
 3B - FLOATING POINT EMULATION - OPCODE DFh
 3C - FLOATING POINT EMULATION - INSTRUCTIONS WITH SEGMENT OVERRIDE
 3D - FLOATING POINT EMULATION - STANDALONE FWAIT
 3E - FLOATING POINT EMULATION - Borland LANGUAGES "SHORTCUT" CALL
 3F - Overlay manager interrupt (Microsoft LINK.EXE, Borland TLINK VROOMM)
 3F - Microsoft Dynamic Link Library manager
 40 - (list)
 41 - (list)
 42 - (list)
 43 - (list)
 44 - (list)
 45 - Z100 - Master 8259 - Serial B
 46 - (list)
 47 - (list)
 48 - (list)
 49 - (list)
 4A - (list)
 4B - (list)
 4C - Z100 - Slave 8259 - S100 vectored line 4
 4C - Acorn BBC Master 512 - "OSCLI" - INTERPRET COMMAND LINE
 4D - Z100 - Slave 8259 - S100 vectored line 5
 4E - TI Professional PC - DISK I/O
 4E - Z100 - Slave 8259 - S100 vectored line 6
 4F - (list)
 50 - (list)
 51 - (list)
 53 - ??? - API
 54 - (list)
 58 - IRQ8 relocated by DESQview 2.26+
 58 - IRQ0 relocated by DoubleDOS
 59 - (list)
 5A - (list)
 5B - (list)
 5C - (list)
 5D - IRQ13 relocated by DESQview 2.26+
 5D - IRQ5 relocated by DoubleDOS
 5E - IRQ14 relocated by DESQview 2.26+
 5E - IRQ6 relocated by DoubleDOS
 5F - (list)
 60 - (list)
 61 - (list)
 62 - (list)
 63 - (list)
 64 - (list)
 65 - (list)
 66 - (list)
 67 - (list)
 68 - (list)
 69 - (list)
 6A - (list)
 6B - (list)
 6C - (list)
 6D - (list)
 6E - DECnet DOS - DECnet NETWORK PROCESS API
 6F - (list)
 70 - IRQ8 - CMOS REAL-TIME CLOCK
 70 - VIRUS "Stupid" - ???
 71 - IRQ9 - REDIRECTED TO INT 0A BY BIOS
 72 - IRQ10 - RESERVED
 73 - IRQ11 - RESERVED
 74 - IRQ12 - POINTING DEVICE (PS)
 75 - IRQ13 - MATH COPROCESSOR EXCEPTION (AT and up)
 76 - IRQ14 - HARD DISK CONTROLLER (AT and later)
 77 - IRQ15 - RESERVED (AT,PS)
 77 - IRQ15 - POWER CONSERVATION (Compaq SLT/286)
 78 - (list)
 79 - (list)
 7A - (list)
 7B - (list)
 7C - IBM REXX88PC command language
 7C - DJGPP GO32 DOS EXTENDER - RELOCATED IRQ4
 7D - (list)
 7E - (list)
 7F - (list)
 80 - (list)
 81 - reserved for BASIC
 81 - IBM TOKEN RING ADAPTER - ???
 82 - reserved for BASIC
 82 - IBM TOKEN RING ADAPTER - ???
 83 - reserved for BASIC
 84 - reserved for BASIC
 85 - reserved for BASIC
 86 - (list)
 87 - IBM ROM BASIC - used while in interpreter
 87 - APL*PLUS/PC - ???
 88 - (list)
 89 - IBM ROM BASIC - used while in interpreter
 8A - IBM ROM BASIC - used while in interpreter
 8A - APL*PLUS/PC - PRINT SCREEN
 8B - IBM ROM BASIC - used while in interpreter
 8B - APL*PLUS/PC - BEEP
 8C - IBM ROM BASIC - used while in interpreter
 8C - APL*PLUS/PC - CLEAR SCREEN MEMORY
 8D - IBM ROM BASIC - used while in interpreter
 8E - IBM ROM BASIC - used while in interpreter
 8F - IBM ROM BASIC - used while in interpreter
 90 - IBM ROM BASIC - used while in interpreter
 90 - APL*PLUS/PC - USED BY PORT 10 PRINTER DRIVER
 91 - IBM ROM BASIC - used while in interpreter
 91 - IBM TOKEN RING ADAPTER - ???
 92 - (list)
 93 - IBM ROM BASIC - used while in interpreter
 93 - IBM TOKEN RING ADAPTER - ???
 94 - IBM ROM BASIC - used while in interpreter
 95 - IBM ROM BASIC - used while in interpreter
 95 - APL*PLUS/PC - DETERMINE R= SPACE
 96 - IBM ROM BASIC - used while in interpreter
 97 - IBM ROM BASIC - used while in interpreter
 98 - IBM ROM BASIC - used while in interpreter
 99 - IBM ROM BASIC - used while in interpreter
 9A - IBM ROM BASIC - used while in interpreter
 9B - IBM ROM BASIC - used while in interpreter
 9C - IBM ROM BASIC - used while in interpreter
 9D - IBM ROM BASIC - used while in interpreter
 9E - IBM ROM BASIC - used while in interpreter
 9F - IBM ROM BASIC - used while in interpreter
 A0 - IBM ROM BASIC - used while in interpreter
 A0 - APL*PLUS/PC - USED BY APL/GSS*CGI GRAPHICS INTERFACE
 A1 - IBM ROM BASIC - used while in interpreter
 A2 - IBM ROM BASIC - used while in interpreter
 A3 - IBM ROM BASIC - used while in interpreter
 A4 - IBM ROM BASIC - used while in interpreter
 A4 - Right Hand Man - API
 A5 - IBM ROM BASIC - used while in interpreter
 A6 - IBM ROM BASIC - used while in interpreter
 A7 - IBM ROM BASIC - used while in interpreter
 A8 - IBM ROM BASIC - used while in interpreter
 A9 - IBM ROM BASIC - used while in interpreter
 AA - IBM ROM BASIC - used while in interpreter
 AB - IBM ROM BASIC - used while in interpreter
 AC - IBM ROM BASIC - used while in interpreter
 AD - IBM ROM BASIC - used while in interpreter
 AE - IBM ROM BASIC - used while in interpreter
 AF - IBM ROM BASIC - used while in interpreter
 B0 - IBM ROM BASIC - used while in interpreter
 B1 - IBM ROM BASIC - used while in interpreter
 B2 - IBM ROM BASIC - used while in interpreter
 B3 - (list)
 B4 - IBM ROM BASIC - used while in interpreter
 B4 - STACKMAN - REQUEST NEW STACK
 B5 - IBM ROM BASIC - used while in interpreter
 B5 - STACKMAN - RESTORE ORIGINAL STACK
 B6 - IBM ROM BASIC - used while in interpreter
 B7 - IBM ROM BASIC - used while in interpreter
 B8 - IBM ROM BASIC - used while in interpreter
 B9 - IBM ROM BASIC - used while in interpreter
 BA - IBM ROM BASIC - used while in interpreter
 BB - IBM ROM BASIC - used while in interpreter
 BC - IBM ROM BASIC - used while in interpreter
 BD - IBM ROM BASIC - used while in interpreter
 BE - IBM ROM BASIC - used while in interpreter
 BE - DESQview/X - ???
 BF - IBM ROM BASIC - used while in interpreter
 C0 - IBM ROM BASIC - used while in interpreter
 C1 - IBM ROM BASIC - used while in interpreter
 C2 - IBM ROM BASIC - used while in interpreter
 C3 - IBM ROM BASIC - used while in interpreter
 C4 - IBM ROM BASIC - used while in interpreter
 C5 - IBM ROM BASIC - used while in interpreter
 C6 - IBM ROM BASIC - used while in interpreter
 C6 - APL*PLUS/PC - IDENTICAL TO INT 86
 C7 - IBM ROM BASIC - used while in interpreter
 C7 - APL*PLUS/PC - ???
 C8 - IBM ROM BASIC - used while in interpreter
 C8 - APL*PLUS/PC - IDENTICAL TO INT 88
 C9 - IBM ROM BASIC - used while in interpreter
 C9 - APL*PLUS/PC - ???
 CA - IBM ROM BASIC - used while in interpreter
 CA - APL*PLUS/PC - PRINT SCREEN
 CB - IBM ROM BASIC - used while in interpreter
 CB - APL*PLUS/PC - BEEP
 CC - IBM ROM BASIC - used while in interpreter
 CC - APL*PLUS/PC - CLEAR SCREEN MEMORY
 CD - IBM ROM BASIC - used while in interpreter
 CD - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
 CE - IBM ROM BASIC - used while in interpreter
 CE - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
 CF - IBM ROM BASIC - used while in interpreter
 CF - APL*PLUS/PC - DEFAULT LOW-RESOLUTION TIMER FOR QUAD MF FUNCTION
 D0 - (list)
 D1 - IBM ROM BASIC - used while in interpreter
 D1 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
 D2 - IBM ROM BASIC - used while in interpreter
 D2 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
 D3 - IBM ROM BASIC - used while in interpreter
 D3 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
 D4 - (list)
 D5 - IBM ROM BASIC - used while in interpreter
 D5 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
 D6 - IBM ROM BASIC - used while in interpreter
 D6 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
 D7 - IBM ROM BASIC - used while in interpreter
 D7 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
 D8 - IBM ROM BASIC - used while in interpreter
 D8 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
 D9 - IBM ROM BASIC - used while in interpreter
 D9 - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
 DA - IBM ROM BASIC - used while in interpreter
 DA - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
 DB - IBM ROM BASIC - used while in interpreter
 DB - STSC APL*PLUS/PC - MAY BE USED IN FUTURE RELEASES
 DC - (list)
 DD - IBM ROM BASIC - used while in interpreter
 DD - STSC APL*PLUS/PC v9.0 - PLACE KEYSTROKE EVENTS IN INPUT BUFFER
 DE - IBM ROM BASIC - used while in interpreter
 DE - APL*PLUS/PC - ???
 DF - (list)
 E0 - (list)
 E1 - IBM ROM BASIC - used while in interpreter
 E1 - PC Cluster Disk Server Information
 E2 - IBM ROM BASIC - used while in interpreter
 E2 - PC Cluster Program
 E3 - IBM ROM BASIC - used while in interpreter
 E4 - (list)
 E5 - IBM ROM BASIC - used while in interpreter
 E6 - IBM ROM BASIC - used while in interpreter
 E7 - IBM ROM BASIC - used while in interpreter
 E8 - IBM ROM BASIC - used while in interpreter
 E9 - IBM ROM BASIC - used while in interpreter
 EA - IBM ROM BASIC - used while in interpreter
 EB - IBM ROM BASIC - used while in interpreter
 EC - (list)
 ED - IBM ROM BASIC - used while in interpreter
 EE - IBM ROM BASIC - used while in interpreter
 EF - BASIC - ORIGINAL INT 09 VECTOR
 EF - GEM - INTERFACE
 F0 - BASICA.COM, GWBASIC, compiled BASIC - ORIGINAL INT 08 VECTOR
 F1 - (list)
 F2 - (list)
 F3 - (list)
 F4 - reserved for user interrupt
 F4 - DoubleDOS - GIVE UP REST OF CURRENT CLOCK TICK AND ALL OF NEXT TICK
 F5 - reserved for user interrupt
 F5 - DoubleDOS - ???
 F6 - reserved for user interrupt
 F6 - DoubleDOS - ???
 F7 - (list)
 F8 - TANDY??? - 100 HZ INTERRUPT
 F8 - DoubleDOS - ???
 F9 - reserved for user interrupt
 F9 - DoubleDOS - ???
 FA - TANDY??? - SERIAL PORT USART INTERRUPT
 FA - DoubleDOS - TURN OFF TIMESHARING
 FB - TANDY??? - KEYBOARD USART RECEIVE INTERRUPT
 FB - DoubleDOS - TURN ON TIMESHARING
 FC - reserved for user interrupt
 FC - DoubleDOS - GET CURRENT SCREEN BUFFER ADDRESS
 FD - reserved for user interrupt
 FD - DoubleDOS - ???
 FE - (list)
 FF - AT/XT286/PS50+ - destroyed by return from protected mode
 FF - Z100 - WARM BOOT