BarsMonster

Rotate instruction

Discussion created by BarsMonster on Nov 1, 2008
does it supported in hardware

I've heard somewhere that AMD cards supports rotate instruction (cyclic bit rotate). I am implementing crypto algorithms, so that is quite important for me. Unfortunately now I cannot find it, I see that people use shl, shr + or instead if that.

Could you confirm that rotate instruction is not implemented in hardware?

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