mirror of
https://github.com/cc65/cc65.git
synced 2024-11-19 06:31:31 +00:00
36 lines
884 B
ArmAsm
36 lines
884 B
ArmAsm
;
|
|
; 2019-07-07, Jede (jede@oric.org)
|
|
;
|
|
; void cclearxy (unsigned char x, unsigned char y, unsigned char length);
|
|
; void cclear (unsigned char length);
|
|
;
|
|
|
|
.export _cclearxy, _cclear
|
|
.import update_adscr
|
|
|
|
.importzp tmp1
|
|
.import popax
|
|
.include "telestrat.inc"
|
|
|
|
|
|
_cclearxy:
|
|
pha ; Save the length
|
|
jsr popax ; Get X and Y
|
|
sta SCRY ; Store Y
|
|
stx SCRX ; Store X
|
|
jsr update_adscr
|
|
pla ; Restore the length and run into _cclear
|
|
|
|
_cclear:
|
|
tax ; Is the length zero?
|
|
beq @L9 ; Jump if done
|
|
@L1:
|
|
stx tmp1
|
|
lda #' '
|
|
BRK_TELEMON XFWR
|
|
ldx tmp1
|
|
dex
|
|
bne @L1
|
|
@L9:
|
|
rts
|