mov a,r7---1us @12mhz
ld a,l---.333us @12mhz

movc a,@a+dptr---2us (a preset to 0h)
ld r,(hl)---.583us

absolute worst (longest) time 8052---48ck=4us for mult/div
but to be fair---24 clocks=2us @12mhz

absolute worst (longest) time z80---23t states=1.917us
23t states not that common--most much faster the longest
when use index registers---

somebody tried to tell me speed is better 8052---yea sure.