30 Aug
2018
30 Aug
'18
10:01 a.m.
On Aug 30, 2018, at 10:52 AM, Bill Degnan via cctalk
<cctalk at classiccmp.org> wrote:
On Thu, Aug 30, 2018, 8:18 AM Noel Chiappa via cctalk <cctalk at classiccmp.org>
wrote:
Thank you. In theory I could compare/contrast with m9312 rom for rk05,
look for commonalities
Sure, or just reverse engineer it. A classic RK05 bootstrap is only a few instructions
long -- the original ROM array bootstrap supports not just RK05 but also RF11, RC11, and
TC11 in just 16 words of code.
paul
From:
Bill Degnan
I am curious how I'd attempt to use one of
these. Any thoughts?
I'd start by dumping and disassembling.
(If you need something to find out where in memory they are, I have
a register discovery program that sweeps the I/O page and lists all
locations that respond. It's probably 173xxx though, that's the
DEC-allocated spare for ROM.)
Noel