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From: dlyons@Apple.COM (David Lyons)
Newsgroups: comp.sys.apple
Subject: Re: cassette click
Message-ID: <35963@apple.Apple.COM>
Date: 27 Oct 89 04:24:06 GMT
References: <8910251156.aa16257@SMOKE.BRL.MIL>
Organization: Apple Computer Inc, Cupertino, CA
Lines: 26

In article <8910251156.aa16257@SMOKE.BRL.MIL> DANFUZZ@BROWNVM.BROWN.EDU (Dan Bornstein) writes:
>[...]
>300: BIT C060
>303: BPL 300
>305: BIT C030
>308: BIT C060
>30B: BPL 308
      ^^^
>30D: BIT C030
>30F: JMP 300
>
>This should click whenever the state of the cassette port changes.
[...]

Shouldn't one of the BPLs be a BMI?  (Doesn't matter which one, but you
want to be stuck in *one* of the little loops while bit 7 of $C060 is
0, and in the other little loop when bit 7 is 1.)
-- 

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