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18 lines
393 B
ArmAsm
18 lines
393 B
ArmAsm
;
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; __do_oserror updates __oserror. Do a JMP here right after calling
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; CIOV. It will return with AX set to -1 ($FFFF). It expects the CIO
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; status in Y.
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;
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; __retminus is a routine whitch returns with AX set to -1 ($FFFF).
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;
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.include "errno.inc"
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.export __do_oserror, __retminus
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__do_oserror:
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sty __oserror ; save os dependent error code
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__retminus:
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lda #$FF
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tax ; return -1
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rts
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