Code optimization <LEA Instruction>

Alan Cox alan en lxorguk.ukuu.org.uk
Jue Ene 27 22:21:14 CST 2000


> > > be used to change the value of an index register faster than
> > > using the ADD instruction (Page G-10, Intel '486 Rag).
> > 
> > It is
> 
> It is not. Never was and can't possibly be. Further, tests show
> as expected, that address generation takes more time than register
> addition.

> > Your test is wrong. See the notes on address generation stalls
> 
> Yea. Sure.

Read the intel book then come back and apologise

next..


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo en vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/



Más información sobre la lista de distribución Ayuda