Date: Sun, 8 Feb 1998 02:26:59 -0600 (CST) From: Damon Permezel <dap@damon.com> To: tlambert@primenet.com (Terry Lambert) Cc: dap@damon.com, nate@mt.sri.com, hackers@FreeBSD.ORG Subject: Re: MMX, pentium, etc Message-ID: <199802080826.CAA11120@damon.com> In-Reply-To: <199802080736.AAA28517@usr02.primenet.com> from Terry Lambert at "Feb 8, 98 07:36:33 am"
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"Terry Lambert sez: " > MMX resuses the FP registers. This is because they couldn't define new > registers because new registers would not get saved and restored on > process context switch for any existing OS's. > > Thus if you use FP, you can not use MMX, and vice versa. I've just recoded it all to use fixed point, in anticipation of being able to use multiply-accumulate with MMX. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe hackers" in the body of the message
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