Path: utzoo!attcan!uunet!husc6!bloom-beacon!tut.cis.ohio-state.edu!mailrus!ames!amdahl!pyramid!prls!mips!keith
From: keith@mips.COM (Keith Garrett)
Newsgroups: comp.arch
Subject: Re: separate integer and float register
Message-ID: <2823@obiwan.mips.COM>
Date: 17 Aug 88 16:13:29 GMT
References: <2724@wright.mips.COM> <6800002@modcomp>
Reply-To: keith@obiwan.UUCP (Keith Garrett)
Organization: MIPS Computer Systems, Sunnyvale, CA
Lines: 13

In article <6800002@modcomp> joe@modcomp.UUCP writes:
>
>Special floating point registers also slow down context switching, due
>to the extra time needed to save/restore them.  This can be an important
>factor in real-time or communication applications that have high context
>switch rates.

At MipsCo loads and stores to fp registers take the same amount of time as
for integer registers.
-- 
Keith Garrett        "This is *MY* opinion, OBVIOUSLY"
UUCP: keith@mips.com  or  {ames,decwrl,prls}!mips!keith
USPS: Mips Computer Systems,930 Arques Ave,Sunnyvale,Ca. 94086