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