From:	elf AT netcom DOT com (Marc Singer)
Message-Id:	<199612202105.NAA11697@netcom5.netcom.com>
Subject:	Re: Intel MMX with DJGPP?
To:	e DOT oti AT stud DOT warande DOT ruu DOT nl (Elliott Oti)
Date:	Fri, 20 Dec 1996 13:05:31 -0800 (PST)
In-Reply-To:	<32BA24E1.72E1@stud.warande.ruu.nl> from "Elliott Oti" at Dec 19, 96 09:32:17 pm
MIME-Version:	1.0
Sender:	elf AT netcom DOT com

> 
> Patrick / Albert Fong wrote:
> > 
> > Will a later version of DJGPP/GCC support Intel's MMX instruction set?
> 
> This may be irrelevant, but NASM supports MMX instructions and is
> supposedly compatible with the *.o format. I'm no expert, but it seems
> to me MMX instructions will in most cases have to be inlined or in a 
> separate asm module in any case, even if the compiler does support it.

Though I have not seen it, I hope that *someone* has pointed out that
Intel is suggesting that software developers avoid using the MMX
instructions.  In the present Intel implementation, Windows (and any
other operating system not explicitly coded to handle the MMX mode)
cannot prevent the MMX/floating point corruption.

I think it is an understatement to say that MMX is
no-ready-for-prime-time.  In fact, it is probably not ready for
late-night. 

-- Marc Singer

- Raw text -