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cc65/libsrc/atari/color.s
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ArmAsm

;
; Ullrich von Bassewitz, 06.08.1998
;
; unsigned char __fastcall__ textcolor (unsigned char color);
; unsigned char __fastcall__ bgcolor (unsigned char color);
; unsigned char __fastcall__ bordercolor (unsigned char color);
;
.export _textcolor, _bgcolor, _bordercolor
.include "atari.inc"
_textcolor:
ldx COLOR1 ; get old value
sta COLOR1 ; set new value
txa
rts
_bgcolor:
ldx COLOR2 ; get old value
sta COLOR2 ; set new value
txa
rts
_bordercolor:
ldx COLOR4 ; get old value
sta COLOR4 ; set new value
txa
rts