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Old 16th Sep 2020, 5:20 pm   #8
Mark1960
Octode
 
Join Date: Mar 2020
Location: Kitchener, Ontario, Canada
Posts: 1,265
Default Re: INS8073 - What I wanted, but never got.

I discovered a local supplier here that has the ins8073 at $14 each, but these are listed as clean pulls. I’ve ordered a couple to play with and will report back in a few weeks when I get chance to test them.

It looks like there are a couple of options to run machine code from reset. Either changing the character output vector and not returning or a simple basic program to link to machine code routine.

I’m not quite clear if its possible to preload ram with a basic program before allowing the ins8073 to run. From the spec it seems it can determine if the memory is ram or rom and it can run basic programs from rom.

The internal memory access seems to not generate bus requests so will be interesting to see how this might make a multiprocessor more efficient. There might be quite a few useful routines in the internal rom.
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