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Technology Stocks : Advanced Micro Devices - Moderated (AMD) -- Ignore unavailable to you. Want to Upgrade?

To: jcholewa who wrote (57529)	10/7/2001 4:44:51 AM
From: bacchus_ii	Read Replies (2) \| Respond to of 275872

RE:"I was personally looking for 32 general purpose registers in x86-64." I also think it's the maximum optimal number. 128 general purpose (64-bit), plus 128 floating-point (64-bit), 64 predicates (one-bit) is plain stupid unless you don't have to run more than few programs (or treads) per CPU available. Context switching (from tread to tread) would required saving and restoring 256 64-bits registers. Also, high level language procedure call and return would have to do that saving-restoring... Gottfried