Re: Intel P6 vs P7 system call performance

H. Peter Anvin
2002-12-17T19:11:25Z

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...
>

Well, there is lcall $0xffff0000, $USER_CS... (no, I'm most definitely
*not* suggesting it.)

-hpa