Messages in this thread | | | Date | Mon, 16 Mar 1998 03:46:46 +0100 (CET) | From | MOLNAR Ingo <> | Subject | Re: [patch] x86, small syscall entry speedup, 2.1.90 |
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On Sun, 15 Mar 1998, Richard B. Johnson wrote:
> Can you really load a segment register with a byte move? My Intel > documentation doesn't say it's possible. [...]
no, the hack abused a GAS bug to generate a prefix-less instruction (to fix another GAS bug ;). Take a look at the objdump output, there it's the proper movw opcode. I'm glad GAS is fixed now, thus a much wider range of code gets improved.
-- mingo
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