home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
HPAVC
/
HPAVC CD-ROM.iso
/
SOURCE.ZIP
/
INT10.ASM
< prev
next >
Wrap
Assembly Source File
|
1986-05-29
|
2KB
|
47 lines
DOSCALL SEGMENT 'CODE'
ASSUME CS:DOSCALL,DS:DOSCALL
;
;Procedure DOSVIO(VAR: AX, BX, CX, DX: Word);
;
; Issue a DOS VIDEO I/O INT (10) with register values set by caller
;
; FRAME: ADR AX; 12
; ADR BX; 10
; ADR CX; 08
; ADR DX; 06
; <RET BP>; 00
;
PUBLIC DOSVIO
DOSVIO PROC FAR
PUSH BP ;Save current BP value
MOV BP,SP ;To address parms
MOV DI,[BP+12] ;Address of AX
MOV AX,[DI] ;Set AX value
MOV DI,[BP+10] ;Address of BX
MOV BX,[DI] ;Set BX value
MOV DI,[BP+08] ;Address of CX
MOV CX,[DI] ;Set CX value
MOV DI,[BP+06] ;Address of DX
MOV DX,[DI] ;Set DX value
INT 10H ;Call BIOS with caller's AX, BX, CX, DX
MOV DI,[BP+12] ;Now put them all back...
MOV [DI],AX
MOV DI,[BP+10]
MOV [DI],BX
MOV DI,[BP+08]
MOV [DI],CX
MOV DI,[BP+06]
MOV [DI],DX
POP BP ;Restore frame pointer
RET 6 ;Return, poping 6 bytes
DOSVIO ENDP
DOSCALL ENDS
END
*** CREATED 06/28/82 21:05:48 BY AMD ***