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From: | "Alexei A. Frounze" <dummy_addressee AT hotmail DOT com> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: either I'm stupid or GCC once again has random behaviour |
Date: | Tue, 2 Jan 2001 17:41:07 -0500 |
Lines: | 25 |
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To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
Reply-To: | djgpp AT delorie DOT com |
Why unrolling? There is a perfect instruction REP STOSB/W/D. What do you mean? -- Alexei A. Frounze alexfru [AT] chat [DOT] ru frounze [AT] ece [DOT] rochester [DOT] edu http://alexfru.chat.ru http://members.xoom.com/alexfru/ http://welcome.to/pmode/ "Damian Yerrick" <Bullcr_pd_yerrick AT hotmail DOT comRemoveBullcr_p> wrote in message news:8fd45t46ttftcmahol8erf6sipdjfs9v8v AT 4ax DOT com... > On Sun, 31 Dec 2000 21:21:11 -0500, "Alexei A. Frounze" > <dummy_addressee AT hotmail DOT com> wrote: > > >PAGE_SIZE is indeed a constant, but who cares? is it hard to put into ECX a > >variable instead of a constant? > > It's a lot harder to unroll something a variable number of times > without Duff's device (which may cause performance problems on K6).
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