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Re: 65020 CPU? Look this...



"Eric Smith" <eric@brouhaha.com> wrote in message 
qhacpl5y5u.fsf@ruckus.brouhaha.com">news:qhacpl5y5u.fsf@ruckus.brouhaha.com...
> "Bryan Parkoff" <nospam@nospam.com> writes:
>> I would predict that 6502 CPU can run at 2GHz
>> which it would be much faster than Intel Pentium 2GHz and other 
>> processors
>> because 6502 is only focused in the cycle performance.  I would claim 
>> that
>> 6502 CPU is the best design with clever optimization however Intel always
>> does not do their good job for CPU design.
>
> The Pentium 4 and Pentium M execute on average more than one instruction
> per clock cycle.  How is your hypothetical 2 GHz 6502 going to even
> come close to that?
>
> Intel's processors don't do nearly as much work per clock cycle as AMD
> processors, but they run at higher clock rates, so the actual system
> performance is similar, though AMD has a slight edge for some things and
> Intel for others.  Although I personally prefer AMD, and it does appear
> that Intel had some missteps last year, on the whole I think you're very
> much mistaken in your claim that Intel does not do a good job of CPU
> design.
>
> I've been a 6502 user and fan since 1976 (though I like the 6809 even
> better), but stretching it to 32 bits and running it faster is NOT going
> to put it into the same league as a Pentium 4 or Athlon 64 by any
> stretch of the imagination.
Eric,

    Please remember that I am against 2 or more instructions per clock 
cycle.  It is because of many mispredict branch and other mispredict 
instructions that can reduce or degrade cycle performance.  I never agree 
with the manufacturer CPU design however I have to stick with 6502 CPU which 
I support one instruction per one cycle.  The problem is that original 6502 
CPU has to execute one instruction per two to seven cycles, but it can be 
changed to improve one instruction per one cycle.
    You have to prove your theory that 6502 CPU with 16 Bits and 32 Bits may 
be much faster with 2GHz than Intel Pentium 2GHz because it always avoid 
mispredict instructions.  Try to test the theory.

Bryan Parkoff