mirror of
https://github.com/cc65/cc65.git
synced 2024-11-01 11:04:34 +00:00
40 lines
782 B
ArmAsm
40 lines
782 B
ArmAsm
|
|
.export PLOT
|
|
|
|
.include "pce.inc"
|
|
.include "extzp.inc"
|
|
|
|
PLOT:
|
|
bcs @getpos
|
|
|
|
tya
|
|
;clc ; already cleared
|
|
adc _plotlo,x
|
|
sta SCREEN_PTR
|
|
|
|
lda _plothi,x
|
|
adc #0
|
|
sta SCREEN_PTR+1
|
|
@getpos:
|
|
ldx CURS_Y
|
|
ldy CURS_X
|
|
rts
|
|
|
|
.rodata
|
|
|
|
_plotlo:
|
|
.repeat screenrows,line
|
|
.byte <($0000+(line*$80))
|
|
.endrepeat
|
|
|
|
_plothi:
|
|
.repeat screenrows,line
|
|
.byte >($0000+(line*$80))
|
|
.endrepeat
|
|
|
|
;-------------------------------------------------------------------------------
|
|
; force the init constructor to be imported
|
|
|
|
.import initconio
|
|
conio_init = initconio
|