MC68010L10 cpu question

[TheMagicM]

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=4598&item=5121192693&rd=1


WOuld it run at 10mhz or at the stock 7mhz that A500/2000/etc runs at ?

[x56h34]

7Mhz unless you change the clock crystal on the A500MB to 10Mhz.

[TheMagicM]

thats what I thought.  thanks!~

[x56h34]

It's a military spec 010. :-)

[TheMagicM]

 :-P

btw, I saw that beast of a accelerator you're ebaying! Very awesome!

[x56h34]

Thanks. :-)

[Brian]

"This chip will give your machine a boost in power and extra CPU instructions over the standard 68000 part."

Yah, it's true.. you do get a few extra instructions but hardly anything compared to a 020/030 CPU.

Yah, a mighty 5-10% boost in power.. like that's anything compared to a real turbo board.

I personaly wouldn't pay more than just a few $ for a 68010, I'd rather save the $ for a real accelrator that can give me a HD controller, Memory expansion and more.

[that_punk_guy]

Also certain instructions (MOVE SR?) are privileged on the 68010, so badly written code for the 68000 will break on your new CPU.

[FastRobPlus]

I got this chip from Motorolla back around 1990, and put it in my Amiga as a drop-in replacement.  The benchmarking programs I ran reported something like a 3% boost in 3 or 4 of the tests, and no change in all the others.

And as mentioned in the above post, it increases incompatibility by some factor.

I remember my Hurricaine '020 board also gave a tepid perfomrance gain - and that was a 14Mhz '020!  The reason was, the system lacked any RAM that took advantage of the better CPU.

If I recall, all accelerator boards for the Amiga get thier speed increase using either a combination of faster chip/faster RAM, or faster chip/cache RAM.

 

[TjLaZer]

So does this chip need to run at 10MHz for the boost, or will running it at 7.14MHz provide the boost?

[x56h34]

I think that the "boost" most likely cannot be detected with naked eye. :-)

[FastRobPlus]

I'm not competent to change the clock to 10Mhz (14 maybe...)

So yes, you get the "Boost" at 7.14.  

Mostly I'm surprised that I called up Motorola one day and said "yes, I'd like to evaluate a 68010 please" and they sent me one!!

[RiP]

7Mhz unless you change the clock crystal on the A500MB to 10Mhz.

My MC68010L10 runs at 7MHz too on Amiga B2000CR Rev6.
How to change the clock crystal? :angry:

[Oldsmobile_Mike]

My MC68010L10 runs at 7MHz too on Amiga B2000CR Rev6.
How to change the clock crystal? :angry:

Don't do that - the crystal controls the timings for the entire motherboard.  your best bet is to get a proper accelerator.  However if you want to try, there's hacks out there that allow you to run a CPU at 14MHz (1/2 the speed of the crystal).  Off-hand I think these mess up floppy timings and a few other things.

Here you go, here's a thread on it:  http://www.amiga.org/forums/showthread.php?t=28259

TL;DR.  Just get yourself a proper accelerator.  :hammer:

[RiP]

Don't do that - the crystal controls the timings for the entire motherboard.  your best bet is to get a proper accelerator.  However if you want to try, there's hacks out there that allow you to run a CPU at 14MHz (1/2 the speed of the crystal).  Off-hand I think these mess up floppy timings and a few other things.

Here you go, here's a thread on it:  http://www.amiga.org/forums/showthread.php?t=28259

TL;DR.  Just get yourself a proper accelerator.  :hammer:

Thanks for the info, accelerator is expensive