By: anonymous (no.delete@this.spam.com), April 27, 2012 9:03 am
Room: Moderated Discussions
>> BTW, does this mean that the pop instruction only issues to the AGUs?
>Impossible. POP generates 2 register results. AGLU has 1 register file write port.
Try sequences of XXX+XXX+PUSH+PUSH + XXX+XXX+POP+POP, whereas XXX
is either ADD or INC or LEA (here: simple reg,[reg] variant). Use APERF to count
cycles to factor out boost effects.
Note the behavior on BD. Re-try it when you get your hands on its successor.
>Impossible. POP generates 2 register results. AGLU has 1 register file write port.
Try sequences of XXX+XXX+PUSH+PUSH + XXX+XXX+POP+POP, whereas XXX
is either ADD or INC or LEA (here: simple reg,[reg] variant). Use APERF to count
cycles to factor out boost effects.
Note the behavior on BD. Re-try it when you get your hands on its successor.



