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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?


To: Scumbria who wrote (96166)3/1/2000 9:54:00 PM
From: Joe NYC  Read Replies (2) | Respond to of 1576619
 
With these 128 bit instruction words, that contain 3 insturctions, isn't there going to be a problem with cache misses? Suppose you have these 3 instruction, each of these instructions needs some data that is sitting somewhere in memory. The compiler does not know where. Suppose 2 of them are in L1, and the third one is not even in L2 and has to be retrieved from main memory. What's going to happen with this instruction? Isn't it going to be stalled until the data is retrieved?

I guess in IA-32 architecture, the CPU would be able to execute the first 2 instructions right away.

Joe