HP Vectra Technical Reference Manual page 299

Vector Func. Function
Address Value Equate Definition
0012H 36
F_SND_BEEP_ENABLE
Enables beep
0012H 38
F_SND_BEEP_DISABLE Disables beep
0012H 3A
F_SND_BEEP Beeps if enabled
0012H 3C
F_SND_SET__BEEP
Sets beep frequency
0012H 3E
F_SND_TONE
Produce tone, user supplied duration
and frequency
0012H 40
F_STLGET_FREE_INDEX Return next free string index
0012H 42
F_STLDELBUCKET Delete bucket string list
0012H 44
F_STLPUT_BUCKET Add bucket to current string list
0012H 46
F_STLGET_STRING Search the list for index, return string
0012H 48
F_STLGET_INDEX Search list for a string, return index
Registers Altered: AH, DS, BP, ES
Example: Get the Base address of the HP_VECTOLTABLE.
MOV
MOV
PUSH
INT
MOV
POP
MOV
MOV
MOV
BP, V_SYSTEM
AH, F-,NS_BASEHPVT
OS
HP_ENTRY
AX, OS
OS
GLOBAL-.DATA--AREA, AX
AX, ES
VECTOR_TABLE_SEGMENT, AX
" HP vector (12H).
" function 04H
" EX-BIOS destroys OS
" Int 6FH for EX-BIOS
" Restore OS
The value returned in ES is the segment address of the HP_VECTOLTABLE and the value
returned in the DS register is the segment address of the EX-BIOS global data area.
V_SYSTEM Driver Function Definitions
F_ISR (AH
=
OOH)
Logical interrupt service routine. Currently, it loads AH with RS_UNSUPPORTED and does an
IRET.
On Entry:
BP
=
V_SYSTEM (12H)
AH
=
F_ISR
(DOH)
290 System Drivers