2002-11-20 01:31:56 +00:00
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;
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; Ullrich von Bassewitz, 19.11.2002
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;
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; The kernal open routines do not return a carry on error, so check the IEEE
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; status, set carry flag and return
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;
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.export checkst
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2012-09-30 18:20:15 +00:00
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.importzp ST
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2002-11-20 01:31:56 +00:00
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.proc checkst
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lda ST
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beq @L1
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lda #5 ; ### Device not present
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sec
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rts
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@L1: clc
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rts
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.endproc
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