hello my knowledgable friends :)

i have recently been talking about opcode decoding, and wanted to confirm that instructions for 64bit registers will take longer for the processor to decode.

thanks :) i am unable to find definitive documentation about it.
Posted on 2007-07-10 06:23:38 by abc123
Hm, aren't the MOV opcodes in long mode the same as in short mode? If so, I can't see why decoding should take longer time.
Posted on 2007-07-11 05:29:08 by f0dder