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SubjectRe: [OT] fpu IRQ x86-ism
Hi Peter.

>> Sorry for this somewhat OT question - I'll try to be brief.
>> I have always noticed that on x86 Linux boxes, IRQ 13 is
>> for the FPU and is always "1" (I assume this is from
>> probing or testing at bootup). This value never seems to
>> change, so again I will assume that it is only used to
>> signal FPU errors. There is no "fpu IRQ" on my Alpha,
>> obviously it has an FPU as well. Is it's existance on the
>> PC just some lame legacy issue?

> Yup. It isn't even used to signal FPU errors on 486+ PCs.

Does that mean it's available for use by other hardware, or is
that prohibited by other considerations?

Best wishes from Riley.

* Copyright (C) 2000, Memory Alpha Systems.
* All rights and wrongs reserved.

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