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Name: Belthor
Date: March 29, 2002 at 03:30:08
Subject: Re: Yamhill
In Reply To: Re: Yamhill by
Christian Ludloff on March 28, 2002 at 22:10:56
Text: || The patent refers to a linear address extension mechanism of a 32-bit
|| processor. Their response to AMD's x86-64 should be more sophisticated
|| than this. The cpu should have 64-bit integer registers and directly use
|| 64-bit addresses in order to compete with AMD's x86-64 cpus.
|
| IA-64. :)

By the way, IA-64 is not Intel's response to AMD's x86-64.
Yamhill is supposed to be that.

Do IA-64 cpus compete with AMD's x86-64 cpus in terms of x86 code
performance? Where did you get this from? The discussion was about an
alternate solution to IA-64, code-named Yamhill, that would compete with
AMD's x86-64 in terms of both legacy code performance and 64-bit
extensions, so that the cpu's microarchitecture will serve the legacy
32-bit code and the new 64-bit code equally well.

IA-64 is not an extension to IA-32, it is a totally different architecture
and the IA-64 cpus have to interpret the IA-32 instructions which results
in pathetic legacy performance. IA-64 and IA-32 require different cpu
microarchitectures in order to get the best code performance.
Two microarchitectures in the same chip is too expensive and in order to
keep the compatibility, they sacrificed the performance of the legacy code.

Personally, I find IA-64 cpus big stupid monsters with huge resources who
have to be told what to do, IA-32 and x86-64 cpus retarded children who
desperately try to rearrange the pieces of the puzzle and Transmeta cpus
some small entities with greater intelligence than their size who strive
to deeply analyze the nature of the code and get the most out of their
limited resources.

Belthor




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      • Re: Yamhill by Christian Ludloff, 13:45:08 2002/03/29 (0)



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