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Author Topic: IBM PPC970 64bit CPU at CeBIT  (Read 8233 times)

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Offline Damion

Re: IBM PPC970 64bit CPU at CeBIT
« on: March 17, 2003, 07:52:28 AM »
Hmmmm...from what I can find, the POWER
(Performance Optimization with Enhanced
Risc) architecture was not fully 64 bit, but
its FPU did indeed have 32 64 bit registers
(branch and integer registers remained 32 bit).
I'm not sure whether or not the 64 bit FPU
architecture was carried over to the PPC
line of processors before the 620 (the first
true 64 bit PPC) but if so, it may explain why
the early 66mhz 601's stomped the 66mhz
'060's in the FPU benchmarks, while remaining
relatively on - par or even slightly slower
in other benchmark areas.


 

Offline Damion

Re: IBM PPC970 64bit CPU at CeBIT
« Reply #1 on: March 18, 2003, 11:15:05 AM »
I agree with mips_proc...Intel after all
invented the first single - chip cpu...and AMD
goes back to the '70's as well. Intel has
supported the x86 architecture for 20 years,
even with built - in chip emulation of the
older instructions.

They're not going anywhere like Motorola,
who left several companies and user
bases "in the water" when they 'bailed' on
68k and other architectures.