Author: The Paranoid (dialin-145-254-182-117.arcor-ip.net)
Date: 02-08-2005 20:09
Well, i'm afraid this won't work out.
Yes, the 68010 is pin-compatible to the 68000, but it
has no inherent speed gain like an 68020 or 68030
would bring. As far as i know, the 68010 only has a
few extensions on the instruction set that are not part
of the 68000 instruction set and therefore will not be
used by 68000 software.
And yes, you could clock the 68010 with 10MHz, but it
will not change anything. As soon as this 68010 accesses
the bus, which it will have to do for every single
instruction it processes, it will have to "wait" for the 8MHz
bus and therefore slow down massively.
So, whether you plug in an 68010 and clock it with 10MHz
or clock the original 68000 with 16MHz, the speed gain
will be minimal. The basic problem can only by solved by
an additional 2nd level cache running at the processor
speed that decreases the number of bus-accesses.
Then, the system will gain performance.
On the Amiga, it might be possible to clock the FastRAM
with 10MHz as well, but the STE has no FastRAM.
The Paranoid
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