GaBuZoMeu wrote:
dwight wrote:
... The processor board uses two of the 68766 EPROMs and I think I can patch the software to run the Forth that is in the code instead of booting to the original. ...
IIRC these are 24pin 8K (!) EPROMs. Only one pin (/OE) to control programming/verification. There are no much programming tools that support these types (68764 was similar me think).
Good luck!
My programmer list it so I'm in good shape there. I have a couple extra EPROMs so I don't have to trash the originals.
The Forth they use is pretty much fig-Forth with a few patches for ROM based for user variables.
The board is really dense so tracing what the different jumpers do will be a real pain. Although, 6502, it has banking capabilities. I have 64K of main memory but there are some static memory boards used on a separate bus for the ICE board. I'd like to move them to the main memory and add battery back. For that I have to figure what jumpers are related to banking selects.
Dwight