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the diskcmd.s module. git-svn-id: svn://svn.cc65.org/cc65/trunk@3939 b7a2c559-68d2-44c3-8de9-860c34a00d81
39 lines
876 B
ArmAsm
39 lines
876 B
ArmAsm
;
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; Ullrich von Bassewitz, 2002-11-16, 2009-02-22
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;
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; Scratch a file on disk
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;
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.export scratch
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.import opencmdchannel, closecmdchannel, writefndiskcmd
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.import fnunit, fncmd
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.include "cbm.inc"
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;--------------------------------------------------------------------------
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; scratch: Scratch a file on disk. Expects the name of the file to be already
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; parsed. Returns an error code in A, which may either be the code read from
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; the command channel, or another error when accessing the command channel
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; failed.
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.proc scratch
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ldx fnunit
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jsr opencmdchannel
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bne done
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lda #'s' ; Scratch command
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sta fncmd
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jsr writefndiskcmd
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pha
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ldx fnunit
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jsr closecmdchannel
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pla
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done: rts
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.endproc
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