Re: Intel P6 vs P7 system call performance

From: Alan Cox (alan@lxorguk.ukuu.org.uk)
Date: Tue Dec 17 2002 - 14:44:33 EST


On Tue, 2002-12-17 at 18:48, Ulrich Drepper wrote:
> Alan Cox wrote:
>
> > Is there any reason you can't just keep the linker out of the entire
> > mess by generating
> >
> > .byte whatever
> > .dword 0xFFFF0000
> >
> > instead of call ?
>
> There is no such instruction. Unless you know about some secret
> undocumented opcode...

No I'd forgotten how broken x86 was

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