cctalk Digest, Vol 3, Issue 28
I wrote about the IBM 7030 (Stretch) having a limited form of speculative
execution back in 1961, and that I wasn't aware of any other processor
before 1994 that had it.
Steven Wilson wrote:
> If I'm not mistaken - this approach was used in later Burroughs hardware,
> like the B6800, B6900, B4900 series machines (late 70's early 80's.)
Could well be.
> I would imagine the IBM 360/91 also did this.
The 360/91 was the first machine to have register renaming (Tomasulo
alogrithm), which is now used in almost all recent high-performance
processors. But AFAIK it did not have speculative execution.
Eric
Received on Thu Nov 13 2003 - 23:54:33 GMT
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