Bios Interrupts; Interrupt Vector Assignments - HP Vectra Technical Reference Manual

APPENDIX A
A. BIOS INTERRUPTS
This appendix contains three tables. The first lists the interrupt vector assignments. The second
lists each of the STD-BIOS interrupts with supported functions. The third lists the EX-BIOS drivers;
their vector addresses, functions and subfunctions.
A.1 Interrupt Vector Assignments
Table A.1
Interrupt Vector Assignments
Address Int Function Type*
Service
Routine**
0OO-OO3H 0
Divide by Zero PI STD-BIOS
(UI)
004-007H 1
Single Step PI
STD-BIOS (UI)
008-00BH 2
Nonmaskable Interrupt
PI STD-BIOS
OOC-OOFH 3
Breakpoint PI STD-BIOS
(UI)
010-013H
4 Arithmetic Overflow PI
STD-BIOS (UI)
014-017H
5
Print Screen SW STD-BIOS (DRVR)
018-01BH
6
Invalid Opcode PI STD-BIOS
(UI)
01C-01FH
7
Reserved PI STD-BIOS
(UI)
020-023H
8
Timer Interrupt (IRQ 0) HW STD-BIOS
024-027H
9
Keyboard ISR
(IRQ 1) HW STD-BIOS
BIOS Interrupts 331