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Re: [MiNT] 68060 emulated FPU instructions

Vincent Rivière <vincent.riviere@freesbee.fr> writes:

> I still have not understood at which level some FPU instructions are
> emulated on 68060.
> - Inside the 68060 itself ?

The CPU doesn't emulate anything, that would not make sense.  Any
instruction that the CPU does not recognize is generating the illegal
instruction exception.  An instruction that is recognized but not
implemented generates one of the unimplemented instruction exceptions.
There are standard software packages that must be hooked to your OS that
implement those unimplemented instructions in software.

See the MC68060UM for details.


Andreas Schwab, schwab@linux-m68k.org
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