Author: Robert (a194-109-243-197.adsl.xs4all.nl)
Date: 04-07-2001 22:12
Actually the 68010 is an slightly improved version of the 68000. It has support for virtual memory (using a separate MMU chip), some extra instructions (move from CCR & SR, move to/from control register, move from/to address space, return an deallocate parameters), a different stack format. And it has a special 'loop-mode' which means that there is a little prefetch queue so that DBcc loop with one instruction can run from the queue thus reducing instruction fetches. Thus a 68010 will speed up programs with many one instruction loops.
But badly written programs that rely on the stack format might fail.
The 68008 is a stripped down version of the 68000. It has a 8 bits databus instead of a 16 bit databus.
