mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-12-29 00:31:52 +00:00
26 lines
252 B
ArmAsm
26 lines
252 B
ArmAsm
|
; turn on double high point at CH,CV
|
||
|
|
plot_point:
|
||
|
|
lda CV ; y
|
||
|
|
lsr
|
||
|
|
lsr
|
||
|
|
and #$fe ; make even
|
||
|
|
tax
|
||
|
|
lda gr_offsets,X
|
||
|
|
sta OUTL
|
||
|
|
|
||
|
|
lda gr_offsets+1,X
|
||
|
|
clc
|
||
|
|
adc DRAW_PAGE
|
||
|
|
sta OUTH
|
||
|
|
|
||
|
|
lda CH ; X * 2
|
||
|
|
lsr
|
||
|
|
tay
|
||
|
|
|
||
|
|
plot_color:
|
||
|
|
lda #$77
|
||
|
|
sta (OUTL),Y
|
||
|
|
|
||
|
|
rts
|
||
|
|
|