Article View: comp.arch
Article #11155Alpha and Super-pipelining
From: Chris Perleberg
Date: Wed, 30 Dec 1992 17:57
Date: Wed, 30 Dec 1992 17:57
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1537 bytes
After reading the material available about the Alpha, I noticed that it was mentioned a few times that the first implementation of the Alpha, the 21064, is *super-pipelined* as well as superscalar. For example, in "infosheet.txt" that is available on gatekeeper.dec.com the following is stated: > Digital's 21064 Microprocessor > .... > The 21064 is a super-scalar, super-pipelined implementation of the > Alpha architecture. Super-pipelined means that an instruction is issued > to the functional units at every clock tick and the results are > pipelined. Being super-scalar, the architecture allows the instruction > unit to issue two instructions per clock tick, resulting in > significantly higher throughput and performance. After reading the Data Sheet of the 21064, I find nothing that seems to indicate the 21064 is super-pipelined, at least in terms of the common definition of super-pipelined. Is DEC redefining the word "super-pipeline"? Anybody out there that can explain? Chris Perleberg pchris@dcc.uchile.cl
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Newsgroups: comp.arch Path: arc1-ca.pugleaf.net!sparky!uunet!uchdcc!pchris From: pchris@dcc.uchile.cl (Chris Perleberg) Subject: Alpha and Super-pipelining Originator: pchris@pehuen Sender: usenet@dcc.uchile.cl (Network News) Message-ID: <1992Dec30.175717.15249@dcc.uchile.cl> Date: Wed, 30 Dec 1992 17:57:17 GMT Reply-To: pchris@dcc.uchile.cl Nntp-Posting-Host: pehuen.dcc.uchile.cl Organization: Universidad de Chile, Depto. de Ciencias de la Computacion Lines: 23