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cc65/libsrc/creativision/cgetc.s

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2013-12-05 11:40:44 +00:00
;* cgetc
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.export _cgetc
.include "creativision.inc"
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_cgetc:
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lda #$80
L1: bit ZP_KEYBOARD
bpl L1
lda ZP_KEYBOARD
and #$7F
rts