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cc65/libsrc/telestrat/textcolor.s
2019-07-21 14:11:51 -04:00

29 lines
715 B
ArmAsm

; 2019-07-02, Jede (jede@oric.org)
;
.export _textcolor
.import CHARCOLOR
.import CHARCOLOR_CHANGE
.include "telestrat.inc"
.proc _textcolor
cmp CHARCOLOR ; Do we set the same color? if we don't detect it, we loose one char on the screen for each textcolor call with the same color
bne out ; yes
lda #$00
sta CHARCOLOR_CHANGE
lda CHARCOLOR ; return last color
rts
out:
ldx CHARCOLOR ; get last color in order to return it
sta CHARCOLOR
lda #$01
sta CHARCOLOR_CHANGE
txa ; return previous color
rts
.endproc