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cc65/libsrc/atari/color.s
cpg b0abf68505 _bgcolor now also sets the fg luminance to max. contrast; _textcolor
is empty


git-svn-id: svn://svn.cc65.org/cc65/trunk@1854 b7a2c559-68d2-44c3-8de9-860c34a00d81
2002-12-27 20:45:01 +00:00

35 lines
399 B
ArmAsm

;
; Christian Groessler, 27-Dec-2002
;
.export _textcolor, _bgcolor, _bordercolor
.import return1
.include "atari.inc"
_textcolor = return1
_bgcolor:
ldx COLOR2 ; get old value
sta COLOR2 ; set new value
and #$0e
cmp #8
bcs bright
lda #$0e
sta COLOR1
txa
rts
bright: lda #0
sta COLOR1
txa
rts
_bordercolor:
ldx COLOR4 ; get old value
sta COLOR4 ; set new value
txa
rts