HP Vectra Technical Reference Manual page 480

RS-232 Mouse Driver
; Main opcode out of range of PGID functions supported
; just return RS_UNSUPPORTED
~iY:
t
; ••• DRIVER HEADER ••••••••••••••••••••••••••••••••••••••••••••••••••••••
NAME: PGID_DRIVER
DESCRIPTION:
pgid_driver endp
••• FUNCTION
HEAg~~=
••••••••••••••••••••••••••••••••••••••••••••••••••••
NAME: PGID_ISR
FUNCTIONAL DESCRIPTION'
I U
b t t l PG 10M a i n en try poi n t
page
:~~~T~ ~~Ig~~tv~~:
not hing
NOTE
****
No driver header for PGID
****
Only
2
function. are lupported: F_ISR, F SYSTEM --
III
otherl are unlupported
;Define the number of buttonl to 3
;Dislble interrupts while working on stick frlme
;Get address of old stack storage,
;Restore stack pointer.
;Get old stick legment.
;And restore
it.
;Re-enable interrupts,
ah, RS_UNSUPPORTED
SI,OFFSET STACK_PTR
SP, [SI]
SI ,2
~~J~I]
EXIT
ENDP
ENDP
AX
I
0
ES , AX
ES.
ES:~HP
ENTRY
*
4
+
2]
~~tEE~+.Vr~~~~U~5~4~UTTON,
3
AX - -
ES
DI.DWORD PTR REQ HDR OFf ;Re10ad ES:DI with address of request header.
ES:[DI).RH_END_Orf,OrFSET END_Of_DRIVER ;Return end of relident code to
ES:[DI].RH_END_SEG,CS ;MS-DOS.
STACK FRAME AND EXIT
pgid_opcode_bad:
mov
i ret
pg1d_dr1ver p roc nelr
cmp ah,F ISR F ISR?
jne cheCK f sYltem
call pgid_Isf
i
ret
check _f_IYltem:
cmp
ah
I
F
SYSTEM
F
-
SYSTEM?
jn. pg id:=opc ode_b ad
call pg1d_IYltem
i ret function has I ' t r. turn code
LI1~h~~.F~~~Jf?~~~ n~:u~~:t~~ ~~~eN6~ ~~~~ORTED,
F ISR
F:=SVSTEM
PARAMETERS:
See function headerl for specific valuel for other entry and exit
par ame t e r
I
REGISTERS PRESERVED:
DEFINITION MODIFICATION HISTORY
VERSION:
DESCRIPTION OF CHANGES:
MeV
MeV
MOV
MeV
MeV
POP
POP
LES
MOV
MeV
; RESTORE OLD
CLI
MeV
MeV
ADD
MOV
MOV
STI
JMP
DEV INTERRUPT
DEV=:ORIVER
0411
0411 84 02
0413 CF
0414
03FF
03FF 80 FC 00
0402 75 04
0404
E8 0414
R
0407 CF
0408
0408 80 FC 02
040B 75 04
040D E8 0496
R
0410 CF
03C8 88 0000
03CB 8E CO
03CD 26: 8E 08 018E
03D2 26: SE 06 OODO
03D7
26:
C6 06 004C 03
03DD 58
03DE 07
03DF 2E: C4 3E 0050 R
03E4 26: C7 45 OE 0401
03EA 26: 8C 40 10
03EE FA
03EF BE 0124 R
03F2 88 24
03F4 83 C6 02
03F 7
8B 04
03F9
SE DO
03FB FB
03FC
E9 029E
03FF
03FF
84'1
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Driver Writer's Guide 471