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Re: Apple ][ 32-bit coprocessor using MC68020/MC68881 (historical)
Eric Smith wrote:
>In 1985, shortly after they were first announced, I ordered an MC68020
>32-bit microprocessor and an MC68881 floating point coprocessor. I was
>quoted a pretty long lead time and fairly high prices. But the parts
>actually arrived very quickly, and I hadn't yet completed the design of
>the system they were intended for. I wanted to test the chips quickly,
>so I needed to kludge something up in a hurry.
>
>Previously, Rich Ottosen had designed and constructed two Apple ][
>coprocessor cards using the MC68008, which is a version of the 68000
>with an 8-bit bus. One card used static RAM, and the other used
>dynamic. A debug monitor was stored in EPROM on the card. Loren Blaney
>had modified the XPL0 compiler to produce native 68K code instead of the
>I2L interpreted code (like P-code) normally used on the Apple.
I have a 68008 card called the Micro-Analyst (by Majix, dated 1984).
It has four EPROM/SRAM sockets, containing a Gnome 1.0 EPROM
and a single 6116 SRAM (at the moment).
Is this, by any chance, the SRAM card that Rich Ottosen designed?
Do you have any ideas about where I could find some documentation
or software for this card?
Thanks,
-michael
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