From: xmerm05 AT vse DOT cz (Michal Mertl) Newsgroups: comp.os.msdos.djgpp Subject: Re: MMX Support Date: Fri, 29 Aug 1997 13:08:38 Organization: University of Economics - Prague, CZ Lines: 16 Message-ID: References: <34061E27 DOT 3B43 AT nbnet DOT nb DOT ca> NNTP-Posting-Host: s018h47.vse.cz To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Precedence: bulk Jason Nye wrote: >I am a new djgpp user and I was just wondering if anyone has heard if >there are any plans to support MMX registers in any future versions of >djgpp (or in the assembler). This would be really nice since a common >operation can be performed to all of them in parallel in one clock cycle >(excellent for matrix stuff). First of all DJGPP is just a port of GCC for dos, so there are no plans to support anything in DJGPP what isn't in GCC. DJGPP(GCC) doesn't output any instructions specific to processors higher than 386 with coprocessor. But in assembler you can use it already. Either you can use NASM which supports them (using Intel syntax asm), or you can, using some macros, use them in GAS assembler also (AT&T syntax). Look at "Pentium profiling tools" in DJGPP section on http://www.goof.com/pgc/ there is header file which uses RDMSR/ WRMSR instructions not supported by GAS. Michal 'MiMe' Mertl e-mail:XMERM05 AT vse DOT cz