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Re: Gas can't handle prefix generated by gcc
"H. J. Lu" <firstname.lastname@example.org> writes:
> It seems that gcc uses a prefix syntax which gas doesn't handle. Does
> gcc always use " ; " as prefix separator?
Yes. It does that for cs/ds on branch hints, it does that for "rep"
on string instructions, it does that for "lock" on atomic updates.
I imagine it's never been a problem before because the length of the
prefixed instruction has never been relevant before.