Article View: comp.arch
Article #2961Re: Compaq find problem with chip
From: Darryl Richman
Date: Sun, 12 Nov 1989 13:02
Date: Sun, 12 Nov 1989 13:02
18 lines
1551 bytes
1551 bytes
In article <291@berlioz.nsc.com> andrew@dtg.nsc.com (Lord Snooty @ The Giant Poisoned Electric Head ) writes: "I believe the Weitek 4167 (?) boosts 80486 fpt performance by "a factor of "3 or 4". In any case, how does the coupled 80486/4167 system decide which "fpt unit will execute a given fpt instruction? and is this a way around the "bug, temporarily - in that the Weitek would take over the sin/cos/tan stuff? The Weitek is memory mapped device and works on a completely different instruction set than the x87. You can actually configure asystem and get all three processors running in parallel. To use a Weitek, you need to compile for it in advance, and if you don't have one (or an emulator), such a binary is useless. --Darryl Richman -- Copyright (c) 1989 Darryl Richman The views expressed are the author's alone darryl@ism780c.isc.com INTERACTIVE Systems Corp.-A Kodak Company "For every problem, there is a solution that is simple, elegant, and wrong." -- H. L. Mencken
Technical Details
Message-ID:
<36340@ism780c.isc.com>Path:
arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!ico!ism780c!darrylReferences:
<2719@ganymede.inmos.co.uk> <2725@ganymede.inmos.co.uk> <403@intelisc.nosun.UUCP> <291@berlioz.nsc.com>Show Full Headers
Complete Article Headers
Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ncar!ico!ism780c!darryl From: darryl@ism780c.isc.com (Darryl Richman) Newsgroups: comp.arch,comp.sys.intel,comp.sys.ibm.pc Subject: Re: Compaq find problem with chip Message-ID: <36340@ism780c.isc.com> Date: 12 Nov 89 13:02:06 GMT References: <2719@ganymede.inmos.co.uk> <2725@ganymede.inmos.co.uk> <403@intelisc.nosun.UUCP> <291@berlioz.nsc.com> Reply-To: darryl@ism780c.UUCP (Darryl Richman) Organization: Interactive Systems Corp., Santa Monica CA Lines: 18