Int/00h
Divide Error
Int/01h
Single Step
Int/02h
NMI (Non Maskable Interrupt)
Int/03h
Single Step
Int/04h
Overflow
Int/05h
Print Screen Key
05h
Bound Check Failed (80186/80286)
Int/06h
Undefined Opcode (80286)
Int/07h
No Math Unit Available (80286)
Int/08h
IRQ0 - Timer Interrupt
08h
Double Fault (80286 protected mode)
Int/09h
IRQ1 - Keyboard Interrupt
09h
Math Unit Protection Fault (80286 protected mode)
Int/0Ah
IRQ2 - EGA Vertical Retrace
0Ah
Invalid Task State Segment (80286 protected-mode)
Int/0Bh
IRQ3 - COM2 Interrupt
0Bh
Not Present (80286 protected-mode)
Int/0Ch
IRQ4 - COM1 Interrupt
0Ch
Stack Fault (80286 protected-mode)
Int/0Dh
IRQ5 - Fixed Disk (PC), LPT2 (AT/PS)
0Dh
General Protection Violation (80286)
Int/0Eh
IRQ6 - Diskette Interrupt
0Eh
Page Fault (80386 native mode)
Int/0Fh
IRQ7 - Printer Interrupt
Int/10h
Video Interrupt
10h
Coprocessor Error (80286/80386)
Int/11h
Equipment Determination
Int/12h
Memory Size
Int/13h
Disk I/O Services
Int/14h
Serial I/O Services
Int/15h
Cassette and Extended Services
Int/16h
Keyboard I/O Services
Int/17h
Printer I/O Services
Int/18h
Transfer to ROM Basic
Int/19h
Disk Boot
Int/1Ah
System Timer and Clock Services
Int/1Bh
Ctrl-Break Key
Int/1Ch
Clock Tick
Int/1Dh
6845 Video Init Tables
Int/1Eh
Diskette Params (Base Table)
Int/1Fh
Graphics Set 2
Int/20h-3Fh
See the separate section in the DOS menu
Int/40h
Hard disk - Relocated Floppy Handler
Int/41h
Fixed Disk Parameters
Int/42h
EGA/VGA/PS - Relocated (by EGA) Video Handler
42h
Z100 - ???
Int/43h
EGA/VGA/PS - User font table
Int/44h
EGA/VGA/CONV/PS - EGA/PCjr fonts
44h
Novell NetWare - High-Level Language API
44h
Z100 - ???
Int/45h
Z100 - ???
Int/46h
Secondary Fixed Disk Params (see INT 41h)
46h
Z100 - ???
Int/47h
Reserved
Int/48h
PCjr - Cordless Keyboard Translation
Int/49h
PCjr - Non-keyboard Scan Code Translation Table
Int/4Ah
AT/CONV/PS - User Alarm
Int/4Bh
Reserved
Int/4Ch
Reserved
Int/4Dh
Reserved
Int/4Eh
Reserved
Int/4Fh
Reserved
Int/50h-57h
IRQ0-IRQ7 relocated by DESQview
50h-57h
IRQ0-IRQ7 relocated by IBM 3278 emulation
Int/58h
Reserved
Int/59h
GSS Computer Graphics Interface (GSS*CGI)
Int/5Ah
Cluster adapter BIOS entry address
Int/5Bh
Used by cluster adapter
Int/5Ch
NETBIOS Interface
5Ch
TOPS Interface
Int/5Dh
Reserved
Int/5Eh
Reserved
Int/5Fh
Reserved
Int/60h
Reserved for user interrupt
60h
FTP Driver - PC/TCP Packet Driver Specification
Int/61h
Reserved for user interrupt
Int/62h
Reserved for user interrupt
Int/63h
Reserved for user interrupt
Int/64h
Reserved for user interrupt
Int/65h
Reserved for user interrupt
Int/66h
Reserved for user interrupt
Int/67h
LIM / EMS Interrupt - see the separate section
Int/68h
APPC/PC
Int/69h
Unused
Int/6Ah
Unused
Int/6Bh
Unused
Int/6Ch
System resume vector (Convertible)
6Ch
DOS 3.2 Realtime Clock update
Int/6Dh
Paradise VGA - internal
Int/6Eh
Unused
Int/6Fh
Novell NetWare - PCOX API (3270 terminal interface)
6Fh
10-NET Interrupt
Int/70h
IRQ8 (AT/XT286/PS50+) - Real-Time Clock
Int/71h
IRQ9 (AT/XT286/PS50+) - LAN Adapter 1
Int/72h
IRQ10 (AT/XT286/PS50+) - Reserved
Int/73h
IRQ11 (AT/XT286/PS50+) - Reserved
Int/74h
IRQ12 (PS50+) - Mouse Interrupt
Int/75h
IRQ13 (AT/XT286/PS50+) - 80287 Error
Int/76h
IRQ14 (AT/XT286/PS50+) - Fixed Disk
Int/77h
IRQ15 (AT/XT286/PS50+) - Reserved
Int/78h
Not used
Int/79h
Not used
Int/7Ah
Novell NetWare - Low-Level API
7Ah
AutoCAD Device Interface
Int/7Bh
Not used
Int/7Ch
Not used
Int/7Dh
Not used
Int/7Eh
Not used
Int/7Fh
Not used
Int/80h
Reserved for Basic
Int/81h
Reserved for Basic
Int/82h
Reserved for Basic
Int/83h
Reserved for Basic
Int/84h
Reserved for Basic
Int/85h
Reserved for Basic
Int/86h
Relocated (by NETBIOS) INT 18
86h-F0h
Used by Basic while in interpreter
Int/E0h
CP/M-86 function calls
Int/E4h
Logitech Modula v2.0 - MonitorEntry
E4h
Logitech Modula v2.0 - MonitorExit
Int/EFh
GEM - Interface
Int/F0h
Used by Basic while in interpreter
Int/F1h
Reserved for user interrupt
Int/F2h
Reserved for user interrupt
Int/F3h
Reserved for user interrupt
Int/F4h
Reserved for user interrupt
Int/F5h
Reserved for user interrupt
Int/F6h
Reserved for user interrupt
Int/F7h
Reserved for user interrupt
Int/F8h
10 ms Interval Timer (Tandy???)
Int/F9h
Reserved for user interrupt
Int/FAh
USART Ready (RS-232C) (TANDY???)
Int/FBh
USART Rx Ready (keyboard) (TANDY???)
Int/FCh
Reserved for user interrupt
Int/FDh
Reserved for user interrupt
Int/FEh
AT/XT286/PS50+ - destroyed by return from prot mode
Int/FFh
AT/XT286/PS50+ - destroyed by return from prot mode
FFh
Z100 - Warm Boot
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