By: David Kanter (dkanter.delete@this.realworldtech.com), May 6, 2013 7:26 pm
Room: Moderated Discussions
EduardoS (no.delete@this.spam.com) on May 6, 2013 6:31 pm wrote:
> I am intrigated by the number of times "32" appear in this
> processor, in special by the instruction queue and ROB.
>
> What is the role of the instruction queue in this uarch?
> What extra bits the ROB have?
The instruction queue is a decoupling buffer that holds instructions between decoding and renaming.
The ROB holds the status info that is needed for OOOE.
The recurrence of 32 certainly tripped me up once or twice as well.
David
> I am intrigated by the number of times "32" appear in this
> processor, in special by the instruction queue and ROB.
>
> What is the role of the instruction queue in this uarch?
> What extra bits the ROB have?
The instruction queue is a decoupling buffer that holds instructions between decoding and renaming.
The ROB holds the status info that is needed for OOOE.
The recurrence of 32 certainly tripped me up once or twice as well.
David