Message-ID:	<3874F8E1.7F0ADC10@bigfoot.com>
From:	JP Morris <doug-15 AT bigfoot DOT com>
Organization:	Aircraft Liberation Front
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Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: assembly language and AMD processors
References:	<01JKDMTWXER68WWRAH AT SLU DOT EDU> <852ldj$jnj$1 AT nets3 DOT rz DOT RWTH-Aachen DOT DE>
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Date:	Thu, 06 Jan 2000 20:19:45 +0000
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Hans-Bernhard Broeker wrote:
> 
> GAMMELJL AT slu DOT edu wrote:
> >      Is the assembly language instruction set for an AMD processor
> > identical to the instruction set for the Intel 486 architecture?
> > Or is it more like the instruction set for an alpha processor?
> 
> No. The AMD 'Athlon' has the usual x86 instruction set, plus some
> extensions found in older AMD processors like K6-II and K6-III
> (3DNow!, replacing Intel's ISSE stuff). If that weren't the case,
> nobody would be using that new processor for Windows machines,
> would they?

IIRC, the AMD chips have a RISC core that emulates the CISC
architecture.
There were rumours of a way to get the CPU to execute it's native RISC
instructions (which would be pretty smart), but rumours are all I've
heard.

> 
> --
> Hans-Bernhard Broeker (broeker AT physik DOT rwth-aachen DOT de)
> Even if all the snow were burnt, ashes would remain.

-- 
JP Morris - aka DOUG the Eagle (Dragon) -=UDIC=-  DOUG-15 AT bigfoot DOT com
Fun things to do with the Ultima games            (http://ithe.cjb.net)
Developing a U6/U7 clone                          (http://fly.to/ire)
d+++ e+ N+ T++ Om U123456!7'!8!KA u++ uC+++ uF+++ uG---- uLB----
uA--- nC+ nR---- nH+++ nP++ nI nPT nS nT wM- wC- y a(YEAR - 1976)

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