26 Oct
2022
26 Oct
'22
8:23 a.m.
On Tue, 25 Oct 2022, Steve Lewis wrote:
Christian! I tried contacting you a few months ago.
Apologies, I suspect
some intermediate ISP may be blocking gmail? I've seen this happen with
other contacts.
Oh my, yes I have some mail chaos on my system and I guess yours must have
been "lost" somewhere. I need to dig through my pile....
Alfred Arnold made the changes to Macro AS himself,
and he used both yours
and the IBM mnemonics since there were no conflicts.
Perfect! I didn't know that.
And now, I think it's time for a "Bad
Apple" style demoscene for the 5100
(as one was made for the 5150), before its 50th in 2025. Let's see what
some raw PALM can do.
Hehe, this sounds like a great idea!
Did I send you my Kermit implementation or my Infocom V2 interpreter?
Quick question, Christian were you aware of the
microcode Appendix C in the
original IBM 5100 MIM? I'd assume Yes - but it's something I've always
been curious about, if that appendix had ever helped you at all, or if it
was too lacking in details? That Appendix C got removed for the 5110
(which has the same Processor/Controller). I'd assume you alway had
access to the 5100 manuals, not just the 5110's.
Yes I'm aware of that. But I noticed that there are significant
differences between the 5100 and the 5110 concerning the different ROS and
the I/O functions like switching between ROS/RWS or controlling the
display adapter.
At the time when I reverse-engineered the 5110 I didn't have access to the
5100 docs, though, only to some copies of IBM internal papers (on my
5110 site).
Christian