[Info-vax] Intel previews new Itanium "Poulson" processor

[IanMiller]

On Feb 24, 11:48 pm, JF Mezei <jfmezei.spam... at vaxination.ca> wrote:
> John Reagan wrote:
> > Poulson, it will now grab 12 slots (4 bundles) every cycle.  And of course,
> > branches,
> > calls, returns, etc. make the chip slow down and even spit out a few things.
>
> OK, So this is a case of a seqential stream of binary instructions of
> ANY number of instructions between each "stop bit" ?
>
> So I could have a theoretical stream of 25 instructions before a stop
> bit which could be executed in any order.
>
> When running on Tukwilla, it will take the first 6 and execute them, and
> as each "slot" is done, it takes the next instruction available in that
> stream ?
>
> On Poulson, it woudl take the first 12 instructions and proceed to
> process the remaining 13 whenever a slot is freed ?
>
> Is that a correct understanding ?
>
> (do IA64 instructions vary in length of execution or do they all execute
> in the same number of cycles ?)


If you want to know this level of detail RTFM http://www.intel.com/design/itanium/manuals.htm