Date: Fri, 25 Jan 2002 16:24:27 -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: <15441.59691.361172.394760@caddis.yogotech.com> In-Reply-To: <3C51E888.FD13A18D@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>
next in thread | previous in thread | raw e-mail | index | archive | help
> > There's lots of talk about using this 'FPU used' flag, but at least my > > read of things from the long discussion before was that it may not be > > possible to implement this on the x86 architectures we currently > > support. > > > > It sounds like a great idea, *IF* if can be done. > > Yes, that was my reservation as well. You can do it from > first principles using the tool chain Not easily. The toolchain may not know the software is using the FPU in interpreted languages (at least, in any effecient manner). You could stick in all sorts of funky hooks, but because threads can be intererupted at any time, the amount of checking that still needs to occur at runtime would make a compile-time solution un-necessarily slow. (MHO of course). Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-arch" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?15441.59691.361172.394760>