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Politics : Formerly About Advanced Micro Devices
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To: Charles R who wrote (102529)4/6/2000 2:05:00 AM
From: Scumbria  Read Replies (1) of 1575898
 
Chuck,

One branch per 5 instructions is about right. I don't think branches are a big issue however. Most designs can execute several basic blocks at a time, and there may in fact be more likelihood of finding a non-dependent instruction on the other side of a branch.

My concern about subtle improvements in architectural performance is that they tend to have a large impact on clock speed. This is a battle that I fight almost every day at work (particularly today!) It is known in the industry as "creeping elegance."

Scumbria
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