Re: Question: use FPU as simple VLIW?

shubu@cs.wisc.edu (Shubu Mukherjee)
28 Mar 1996 22:48:04 -0500

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From: shubu@cs.wisc.edu (Shubu Mukherjee)
Newsgroups: comp.arch,comp.compilers
Date: 28 Mar 1996 22:48:04 -0500
Organization: CS Department, University of Wisconsin
References: 96-03-006 96-03-207
Keywords: architecture, parallel

Kevin Baker <jenks@hevanet.com> writes:
> I was wondering if any ILP research has been done in the area of using
> the FPU as a sort of VLIW co-processor when it was not being used for
> regular FPU operations.


Check the paper "Decoupling Integer Computation in Superscalar
Processors" by Subbarao Palacharla and J.E. Smith (University of
Wisconsin, Madison). It appears in the 28th Annual IEEE/ACM
International Symposium on Microarchitecture, 1995.


If I remember correctly, this paper tries to use idle FPU units for
integer computation.


-Shubu
--
Shubu Mukherjee Univeristy of Wisconsin-Madison, Computer Sciences




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