3 ms·
OTHER than the ridiculous instruction decoding, which is still today very slow for cold code on even the newest x86 cores. Once you've decoded the crazy x86 in
by brucehoult 1y ago
OTHER than the ridiculous instruction decoding, which is still today very slow for cold code on even the newest x86 cores.
Once you've decoded the crazy x86 instructions into µops in the µop cache then, yes, it avoided the worst CISC mistakes of multiple memory accesses (and potential page faults) in one instruction via having only one memory operand per instruction and not having indirect addressing.