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Ancient Spirit

ASM and C question

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Yes, but there's not much point. If you use std::copy() the compiler will likely generate the same or better code than you would using assembly.

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Try this:
__asm {
lea esi,arr1
lea edi,arr2
mov ecx,20
rep movsd
};
Still.. It's pretty pointless in itself, an intrinsic memcpy should be equally fast (probably even faster since it can interleave the instructions freely with nearby code).

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