Messages in this thread | | | Subject | Re: Code optimization <LEA Instruction> | Date | Thu, 27 Jan 2000 23:05:12 +0000 (GMT) | From | Alan Cox <> |
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> One of the things it states is that the LEA instruction can > be used to change the value of an index register faster than > using the ADD instruction (Page G-10, Intel '486 Rag).
It is
> > As usual, the Intel reference manual is wrong for all types > of CPUs that I have tested (486-686).
Your test is wrong. See the notes on address generation stalls
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