[comp.arch] ROM speed

lindsay@MATHOM.GANDALF.CS.CMU.EDU (Donald Lindsay) (02/12/90)

It's often said that microcoded machines have slower cycle times than
fully hardwired machines. It's sometimes said that this is due to
the access time of a mongoword of ROM.

Is this true? Does anyone have a modern figure for how big a ROM
can be before it's slower than (say) a five-ported register bank?
-- 
Don		D.C.Lindsay 	Carnegie Mellon Computer Science