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59e96ef740
Moved getdevice.s from 'c64'/'c128' to 'cbm' making use of the new 'ST' setup. git-svn-id: svn://svn.cc65.org/cc65/trunk@5834 b7a2c559-68d2-44c3-8de9-860c34a00d81
24 lines
389 B
ArmAsm
24 lines
389 B
ArmAsm
;
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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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.importzp ST
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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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