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CD ROM Paradise Collection 4
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CD ROM Paradise Collection 4 1995 Nov.iso
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DISPGRAP
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CRT_GETX.ASM
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Assembly Source File
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1985-04-03
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1KB
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58 lines
;-----------------------------------------------------------------------
;
; name crt_getxy -- get current cursor setting
;
; synopsis int crt_getxy(page)
; int page;
;
; description returns the current cursor setting in page # "page".
; In text mode, it is possible to have up to 8 different
; pages, all with different cursor settings.
;
; example rc = crt_getxy(0);
; column = rc & 0xff; /* col is lower byte */
; row = rc >> 8; /* row is upper byte */
; /* an interesting alternative */
; /* to the above: row=rc % 0x100 */
;
;----------------------------------------------------------------------
include dos.mac
video equ 10h ; video interrupt number
IF LPROG
X EQU 6 ;OFFSET OF ARGUMENTS
ELSE
X EQU 4 ;OFFSET OF ARGUMENTS
ENDIF
PSEG
PUBLIC crt_getxy
IF LPROG
crt_getxy PROC FAR
ELSE
crt_getxy PROC NEAR
ENDIF
push bp
mov bp,sp
mov bh,[bp+x] ; get the page # into bh
mov ah,3
int video
mov ax,dx ; return ( 256*row + col )
pop bp
ret
crt_getxy endp
ENDPS
END