Date: Fri, 2 Jul 1999 09:33:21 +0200 (CEST) From: Niteshadow To: pgcc AT delorie DOT com Subject: Re: Pentium III optimizatio In-Reply-To: <377BD117.5FCE9945@casema.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Reply-To: pgcc AT delorie DOT com X-Mailing-List: pgcc AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Thu, 1 Jul 1999, Martijn Kruithof wrote: > Igor Schein wrote: > > > > Hi, can pgcc optimize for Pentium III architecture? > > > > Thanks > > Igor > > As far as I know no special optimizations are available for P II/ P III > (correct me if I am wrong) Use pentium pro optimizations for best > results > on P II / III > > kind regs Martijn > > -- > > there are the optimizations for PPro, yet the real difference between PPro/PII/PIII are the MMX/Catmai instructions, which are (at least to my knowledge) pretty tough to implement in a compiler. This has to do (please correct me if I am wrong) with their use of FP registers and their nature being SIWD -- this means the compiler would have to really know what the programmer wanted to create with a chunk of C code.. signed Robert - ------------------------------------------------------------------------------ - From : Robert 'Niteshadow' Varga email : niteshadow AT hq DOT alert DOT sk, varga AT ibl DOT sk PGPkey: http://hq.alert.sk/~niteshadow/pgpkey.txt phone : +421 903 511 985 (mobile, always), +421 863 432 49 75 (home, rarely) - ------------------------------------------------------------------------------ -----BEGIN PGP SIGNATURE----- Version: PGPfreeware 5.0i for non-commercial use Charset: noconv iQA/AwUBN3xrQaz3GZ0qtIKKEQKxIwCfTaURRVgCB3qRUqo6GYeABlG91qIAniBw n/JTfDacntfWnQNnqjfb8WZU =7OMi -----END PGP SIGNATURE-----