On Mon, 6 Sep 1999, Comandante wrote:
> Suppose that I'm writing a piece of code taht uses the FPU, in a SMP
> system, will be the two units used in paralell if I have two threads
> using them?
Yes.
> The interrupt for the FPU is XT-PIC ; If I managed to use both FPUs
> how will the kernel know what FPU of what cpu isued the int??
INT13 is used to signal FPU _error_ situations -- on 386 and
older 486 machines. Newer 486 machines, Pentia and anything
newer than that uses the 'Exception 16' mechanism.
In short, INT13 is mostly irellevant to your question.
(and you should be lucky about that, read the INT13 comments
in the kernel source :))
Rik
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