[RC5] Client for Windows/64Bit

Décio Luiz Gazzoni Filho decio at decpp.net
Mon Aug 15 21:58:46 EDT 2005


On Aug 15, 2005, at 10:50 PM, Fuzzy Logic wrote:

> Same number of registers, but each is twice as long.

Well that's the point. x86-64 has 16 registers while ordinary x86 has  
8. (actually one is the stack pointer, so it's more like 15 vs. 7).

There's the source of extra performance in x86-64.

Décio

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