Re: CPU specific/optimized Debian builds ?
>>>>> "Nick" == Nick Phillips <email@example.com> writes:
Nick> That doesn't make it a bad binary.
So a binary that throw illegal instruction traps is still a good binary?
Nick> I don't know what planet you're on, but I wouldn't expect
Nick> something I explicitly built for a K7 to run on a
Nick> PIII. There's nothing special about x86 architecture that
Nick> magically enables older processors to understand newer
Nick> instruction sets...
Th difference is that using -march in the x86 instruction superset
results more in instruction sequence reordering than it does in
unsupported opcodes, mainly because the more obscure opcodes don't add
much from a peromance perspective. Integer multiplication (one of the
most obvious differences between SPARC V7 & SPARC V8) is a little more
All that said, your right, no architecture is forward compatible.
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