Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!ginosko!aplcen!haven!adm!smoke!gwyn
From: gwyn@smoke.BRL.MIL (Doug Gwyn)
Newsgroups: comp.sys.apple
Subject: Re: FPE and a transwarp gs
Message-ID: <11286@smoke.BRL.MIL>
Date: 14 Oct 89 05:00:56 GMT
References: <8910130419.AA19703@trout.nosc.mil>
Reply-To: gwyn@brl.arpa (Doug Gwyn)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 16

In article <8910130419.AA19703@trout.nosc.mil> philip@pro-generic.cts.com (Philip McDunnough) writes:
>However,the 68881/68882 are very good math coprocessors
>which function at their best if they BYPASS SANE.I don't no if the FPE does
>that.(no->know).

The Innovative Systems FPE card knows nothing about SANE; it works in any
slot-based Apple II, not just the IIGS.  When you buy the FPE card you
also receive some software that:
	(1) patches BASIC.SYSTEM to use the FPE card instead of emulating
	floating-point internally
	(2) installs an INIT file for GS/OS that patches the toolbox to
	redirect SANE calls to code that uses the FPE card
	(3) patches AppleWorks (I think) to use the FPE card
ByteWorks' ORCA/C will generate direct calls to the FPE card (slot) if
you invoke a magic #pragma.  Otherwise it uses the SANE tools, which may
be sped up if you installed the FPE's INIT file.