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Article #13115Weitek 3332 Question
From: shep
Date: Sat, 28 Feb 1987 22:01
Date: Sat, 28 Feb 1987 22:01
20 lines
1468 bytes
1468 bytes
I've been looking at the Weitek WTL 3332 floating point data path chip. Nice concept for pipelined 32-bit operations. Has three i/o ports and three internal busses. Has a multiplier and an adder. You would think this would be a great chip for solving polynomials because it can do a pipelined AX+B, right? Just load up A and B into the register file and let the data flow through, right? Wrong, it's not that simple. The two register file reads use up the internal A and B bus. That means the X value input must be asserted on the C bus. Well, at quick glance you see this nice external Y port... but it only feeds the B bus!!! Yes, you can make this chip work at this by playing games but does anyone have an idea as to why they hooked the external input port there??? Shep Siegel Datacube Inc. DSP Products Group 4 Dearborn Rd. Peabody, Ma. 01960 UUCP: [ihnp4 | mirror]!datacube!shep VOICE: (617) 535-6644; FAX: (617) 535-5643; TWX: (710) 347-0125
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!utgpu!water!watnot!watmath!clyde!ima!mirror!datacube!shep From: shep@datacube.UUCP Newsgroups: comp.arch Subject: Weitek 3332 Question Message-ID: <101200002@datacube> Date: Sat, 28-Feb-87 17:01:00 EST Article-I.D.: datacube.101200002 Posted: Sat Feb 28 17:01:00 1987 Date-Received: Mon, 2-Mar-87 04:32:44 EST Lines: 20 Nf-ID: #N:datacube:101200002:000:957 Nf-From: datacube.UUCP!shep Feb 28 17:01:00 1987