mirror of
https://github.com/cc65/cc65.git
synced 2024-11-02 18:06:48 +00:00
36 lines
564 B
ArmAsm
36 lines
564 B
ArmAsm
|
|
||
|
;
|
||
|
; Maciej 'YTM/Elysium' Witkowiak
|
||
|
;
|
||
|
; 27.10.2001
|
||
|
|
||
|
; void clrscr (void);
|
||
|
|
||
|
.export _clrscr
|
||
|
|
||
|
.include "../inc/jumptab.inc"
|
||
|
.include "../inc/geossym.inc"
|
||
|
.include "../inc/const.inc"
|
||
|
|
||
|
_clrscr:
|
||
|
lda #ST_WR_FORE | ST_WR_BACK
|
||
|
sta dispBufferOn
|
||
|
lda #0
|
||
|
jsr SetPattern
|
||
|
lda #0
|
||
|
sta r3L
|
||
|
sta r3H
|
||
|
sta r2L
|
||
|
lda #199
|
||
|
sta r2H
|
||
|
lda graphMode
|
||
|
bpl L40
|
||
|
lda #>639 ; 80 columns
|
||
|
ldx #<639
|
||
|
bne L99
|
||
|
L40: lda #>319 ; 40 columns
|
||
|
ldx #<319
|
||
|
L99: sta r4H
|
||
|
stx r4L
|
||
|
jmp Rectangle
|