Article View: comp.arch
Article #1654Making Rounding Modes Usable - We've Done That!
From: RWilson
Date: Tue, 25 Jul 1989 08:47
Date: Tue, 25 Jul 1989 08:47
19 lines
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1291 bytes
In the recent articles on Rounding Modes in IEEE arithmetic, Lawrence Crowl and Herman Rubin have got around to discussing the chicken and egg problem: if hardware continues to think of the IEEE rounding as "MODES" and puts them in "status registers" rather than as part of the instruction, then the software folk will continue not to write languages which use these desireable facilities. Well us hardware folks (Acorn) have come to your rescue: the floating point system for the Acorn RISC Machine (VLSI Technology VL86C010 and VL86C020) provides the rounding modes as part of the instruction. There is both a hardware and a software implementation of it. Full details have been emailed to Lawrence (since he put his foot in it first), so email him [or me if you are really stuck] for more. One little thing: ARM based computers start at 649 pounds in the UK. And you can't buy them in the states at all. Must be something in your culture which doesn't want control over rounding modes :-)! --Roger Wilson
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!mcvax!ukc!acorn!rwilson From: RWilson@acorn.co.uk Newsgroups: comp.arch Subject: Making Rounding Modes Usable - We've Done That! Message-ID: <817@acorn.co.uk> Date: 25 Jul 89 08:47:08 GMT Sender: rwilson@acorn.co.uk Lines: 19