Article View: comp.sys.amiga.tech
Article #3675MC68881/2 Support (hello, Dave Haynie)
From: Dallas J. Hodgson
Date: Wed, 30 May 1990 23:05
Date: Wed, 30 May 1990 23:05
29 lines
2102 bytes
2102 bytes
If you're like me, you're tired of all the software that doesn't take advantage of your FFP. The way things work right now, we've got too many floating point standards, such as : mathffp.library ieee.library (double precision) ieee.library (new single precision, recognizes 6888x for 2.0) compiler-specific math libraries in-line FFP instructions Since the FFP instructions trap out thru the FLINE vector anyway (if there's no coprocessor present) why don't we EMULATE a 6888x when the traps occur? Put this support in the RKM, and let all the compilers generate in-line FFP instructions. Yes, there's a small amount of overhead for non-FFP users, but it's no different from the PC way of doing things - and very system-friendly! Let's say GOODBYE to the math libraries; if a user wants to install a Weitek in the future, the vendor(s) can supply the driver software themselves - and everything will still work. Just a thought. +----------------------------------------------------------------------------+ | Dallas J. Hodgson | "This here's the wattle, | | Metaphor Computer Systems | It's the emblem of our land. | | Mountain View, Ca. | You can put it in a bottle, | | USENET : djh@metaphor.com | You can hold it in your hand." | +============================================================================+ | "The views I express are my own, and not necessarily those of my employer" | +----------------------------------------------------------------------------+
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!uwm.edu!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!apple!metaphor!dragon!djhShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!uwm.edu!zaphod.mps.ohio-state.edu!brutus.cs.uiuc.edu!apple!metaphor!dragon!djh From: djh@dragon.metaphor.com (Dallas J. Hodgson) Newsgroups: comp.sys.amiga.tech Subject: MC68881/2 Support (hello, Dave Haynie) Message-ID: <1181@metaphor.Metaphor.COM> Date: 30 May 90 23:05:00 GMT Sender: news@metaphor.Metaphor.COM Reply-To: djh@dragon.metaphor.com (Dallas J. Hodgson) Organization: Metaphor Computer Systems, Mountain View, CA Lines: 29