1 Oct
2023
1 Oct
'23
12:58 a.m.
Hi Tony and all
It might have run CP/M (which will run on an 8080, and
therefore on an
8085). That needs RAM at location 0000 [1].
I know of CP/M, I even used CP/M (on my Apple) but I did not know it
needs RAM at 0000. That's kind of strange, since everything that ran
CP/M (OK, everything -80) has vectors at 0. I guess there was a reason
behind it.
I see the CPU board has a jumper "F000/F800" so I guess it does something
to map that address to 0 after reset.
W