Re: COP421 dumps!

The Lisa I/O COPS dump has been preserved here as well:

   http://segher.ircgeeks.net/COPS/

Using that code dump, a successful plug-in replacement for the Lisa's COPS has been built based on the romless COP402. I expect production units will be available soon.

This design does have its drawbacks... it isn't low power, so it won't keep time for long when running from a battery (when power is disconnected from the Lisa). However, since most of us don't have a battery on the Lisa I/O board anymore anyway, this likely isn't an issue for most people.

James

>As far as I know, the mask ROMs in the COP421s were basically the
>last bit of code in the Lisa's hardware that hadn't been preserved
>on modern media.

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