Date: Fri, 25 Jan 2002 17:34:12 -0700 From: Nate Williams <nate@yogotech.com> To: Terry Lambert <tlambert2@mindspring.com> Cc: Nate Williams <nate@yogotech.com>, Daniel Eischen <eischen@pcnet1.pcnet.com>, Dan Eischen <eischen@vigrid.com>, k Macy <kip_macy@yahoo.com>, Peter Wemm <peter@wemm.org>, Julian Elischer <julian@vicor-nb.com>, arch@FreeBSD.ORG Subject: Re: KSE question Message-ID: <15441.63876.271856.290838@caddis.yogotech.com> In-Reply-To: <3C51F89E.78DAD01D@mindspring.com> References: <3C51D0B6.F6E04EBC@mindspring.com> <Pine.SUN.3.91.1020125164325.24428A-100000@pcnet1.pcnet.com> <15441.56832.170618.611705@caddis.yogotech.com> <3C51E888.FD13A18D@mindspring.com> <15441.59691.361172.394760@caddis.yogotech.com> <3C51F18A.C0D8D6B1@mindspring.com> <15441.62092.864056.841853@caddis.yogotech.com> <3C51F492.CB0FB69E@mindspring.com> <15441.62830.180895.121111@caddis.yogotech.com> <3C51F89E.78DAD01D@mindspring.com>
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> > [ SNIP ] > > > > > Hence my punting to "optimize later". 8-(. > > > > Otherwise known as not having a complete solution to the problem, hence > > not having a solution at all. :( > > It maps the problem space, so it's a complete solution. No, it doesn't. It's a 75% solution, and the remaining 25% is extremely common. Not an acceptable solution. > One way around this would be to compile your Java programs > to native code, but that's ugly, too, and has corner cases > when you grab serialized objects out of a directory or > whereever, and have to fall back to the JVM to access the > member functions, which might use the FPU. 8-(. Plus, it's not possible to do, since there are no 'Good' java->native code compilers for FreeBSD. (There is only one decent compiler out, and it isn't ported to FreeBSD. And, GCC is *NOT* that compiler, as it's Java stuff isn't useful for anything real.) > > > Unfortunately, we can't fix the base problem, which is > > > "delayed exception signalling on x86 FPUs sucks". 8-). > > > > On the money! We are in violent agreement for once. :) :) :) :) > > Cool! Let's just dike the thing out! > > I know, we can compile the FPU emulation library into user > space, and not use the hardware FPU at all. Then we can fix > the emulated FPU, and the problem goes away. 8-) 8-) 8-). Yeah, sure. Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
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