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Article #3675

MC68881/2 Support (hello, Dave Haynie)

#3675
From: Dallas J. Hodgson
Date: Wed, 30 May 1990 23:05
29 lines
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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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