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Politics : Formerly About Advanced Micro Devices
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To: tejek who wrote (96107)3/1/2000 4:44:00 PM
From: Scumbria  Read Replies (2) of 1576521
 
Ted,

The discussion about 32 bit vs. 64 bit code has missed a very important point- code density.

x86 has always had an advantage over RISC because many more instructions fit in the cache, and each instruction does a lot more than a RISC instruction. It can be argued that an x86 instruction cache is 4X as efficient as a RISC cache.

If a 64 bit architecture expanded the instruction length, this problem would be aggravated further.

Scumbria
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