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SubjectRe: FDC motor left on
On Mon, 6 Oct 2003, Richard B. Johnson wrote:

> I suggest that the FDC control byte be read, then the result be
> ANDed with ~0x10, then written back. The ifed-out code clears
> the whole control word which is inappropriate at a time the
> diskette channel may be still be active.

Which will work for a physical drive 0x0 only -- it won't work for a
BIOS-emulated drive swapping. Supposedly the most reliable way should be
ANDing with ~0xf0, or better yet, using a BIOS call, preferably by fixing
the boot loader used.

+ Maciej W. Rozycki, Technical University of Gdansk, Poland +
+ e-mail:, PGP key available +

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