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Politics : Formerly About Advanced Micro Devices
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To: Hans de Vries who wrote (98743)3/17/2000 1:37:00 AM
From: Scumbria  Read Replies (1) of 1571204
 
Hans,

The Willamette has more and shorter pipeline stages as Coppermine which could do the slowest ALU operations in 1 cycle. This is not possible anymore. The slowest ALU operation takes about 1.5 cycle (not 0.5) The latter would mean that the ALU would be 3 times faster with the same process... Which is not the case.

I thought a little more about your post. The logic you are using would be correct if Willy's ALU used the same circuit design as PIII. I believe that Willy uses some clever type of dynamic logic to achieve it's fast ALU performance.

Scumbria
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