1802 Forth? MSI 88/e?

 

Hello,

I got one of the MSI 88/e handhelds from Electronic Goldmine a while
back, and was wondering if anyone has done anything interesting with
this unit. Has anyone worked out the addressing, etc? I'd like to
replace the EPROM with a 4K forth (if I can find a copy of FIG-FORTH),
with bit-banged serial (via a max232), and use that as a starting
point to map out the display & keyboard circuits interactively. With
the right software, this could be a nifty little system, since it's
got 32K RAM, a keyboard, display, and (mechanically clunky) bus
connectors.

dave

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