davidlo@madvax.UUCP (03/24/87)
Pardon my ignorant... I am sure this has been posted before, but someone
can inform me of the advantage of replacing the 68000 with a 68010 ?
And is there any adjustment in software required ?
And is there any precaution in messing with the hardware?
Please E-mail to me. and Thank you.
--
David Lo (415)939-2400 /\ o
Varian Instruments, 2700 Mitchell Drive, Walnut Creek, CA 94598 \/
{ptsfa,lll-crg,zehntel,dual,amd,fortune,ista,rtech,csi,normac}varian!davidlomwm@eris.UUCP (03/25/87)
In article <516@madvax.UUCP> davidlo@madvax.UUCP (David Lo) writes: > Pardon my ignorant... I am sure this has been posted before, Yes, it has. But it's been long enough ago (> 1 semester) that many people probably missed it. I'll answer the questions publicly... > but someone > can inform me of the advantage of replacing the 68000 with a 68010 ? A minor increase in speed. I showed about 5%; MC claims "up to 25%." It really isn't noticable during my everyday work. > And is there any adjustment in software required ? Under 1.2 (plus 1.2 utilities), no. Under 1.1, you need to run a shim that catches the now-privileged move-to/from-csr (forgot which) instruction trap, and simulates it. > And is there any precaution in messing with the hardware? Other than the normal precautions in mucking with hardware, just one: the 68K has pin 1 facing a different direction than every other chip on the board. I don't recommend this upgrade, unless you just enjoy fooling with the insides of your Amiga. It doesn't buy very much, and can create headaches with external hardware (yanking the '010 from my machine made my system much more reliable). If you want to do it anyway, complete instructions + the software shim can be found on Fish disk #18. Of course, I've also got an '010 for sale :-). <mike -- Here's a song about absolutely nothing. Mike Meyer It's not about me, not about anyone else, ucbvax!mwm Not about love, not about being young. mwm@berkeley.edu Not about anything else, either. mwm@ucbjade.BITNET
wtm@neoucom.UUCP (03/31/87)
I bought a 68010 last summer for $10 at a flea market at a ham fest. Putting it in the Amiga is a nearly trivial task-- the most difficult is taking out the myriad screws holding the RFI shield over the circuit board. Once the cover is off, just swap the parts. The performance gain of putting in the 68010 is nearly as trivial as installing the chip. It speeds operations up by about 10% on average. I guess 10% for $10 would be a good deal, except-- A number of programs do not run correctly with the 68010, most notably transformer. Several games I tried worked OK, even though they had been copy-proofed (Arctic Fox is the only one I remember by name). That games still worked is surprising since they operate in the "take over the whole machine" mode. The performance boost was not detectible by users that had not been informed in advance that the machine had been souped up. I replaced the original 68K after two days, since I had a project that absolutely required me to use transformer (ugh!). I wish I could have left the 010 in since it was a ceramic rather than plasic package. --Bill Bill Mayhew Division of Basic Medical Sciences Northeastern Ohio Universities' College of Medicine Rootstown, OH 44272 USA phone: 216-325-2511 (wtm@neoucom.UUCP ...!cbatt!neoucom!wtm)