Re: Z80 Card for Apple //e

[Tarkin <Tarkin000@gmail.com>]

On Oct 17, 5:35 am, "Bill Buckels" <bbuck...@mts.net> wrote:
> "Tarkin" <Tarkin...@gmail.com> wrote in message
>
> 9ec64546-f563-4945-b104-b8cf58824d29@d31g2000hsg.googlegroups.com">news:9ec64546-f563-4945-b104-b8cf58824d29@d31g2000hsg.googlegroups.com...
>
> >I feel your pain ;^) After reading your initial post, I jumped on one as
> >well.
>
> Now I feel worse:(
>

Please don't! I've paid more for less ;^)

> However, if one already has an Apple II, a Z80 card is the easiest and least
> expensive way to get a CP/M 80 machine to play with.

Sort of... I am still sorting out how to get data betwixt the A2 CP/M
and
The Rest of The World. More on that in a bit...

> And there is more
> credibility for a vintage developer like myself who professes to develop for
> CP/M 80, or the Apple II, or Commodore 64 if he can point to a real machine
> that he has tested his applications against as opposed to merely saying that
> he has tested on an emulator.

I can understand that!

> At the end of the day we do care what our
> peers think, at least I do. I would like to be taken somewhat seriously when
> I say my stuff works:)
>

Unlike what I could say about my tinkerings with x86 system code,
which would
perform flawlessly under Bochs, and then fail spectacularly on real
hardware...

> For me this all ties into developing my Aztec C Museum site into its
> eventual target of a full-blown retro-computing resource. It's like we
> used-to say... "If you talk the talk you need to walk the walk."
>

I like the site!

> But the over-riding reason is of course because it's fun!
>
> Bill

Beware the intermittancy issue:
http://mirrors.apple2.org.za/apple.cabi.net/Z80.CPM/A2.CPM.files/ap-cpm.fix.txt

The above partially explains my issue; the other part was a slightly
out-of-spec drive, fixed with Locksmith 6. With my drive speed
adjusted to 300 rpm, the system lasts a lot longer before locking
up.

So it seems like the Apple ][ CP/M and AE CP/AM images
are the way to go for this card; the AE manual for 5.1 even mentions
the 128 specifically!

Has anyone here ever worked out "UPLOAD.COM"? It seems the only
way to bootstrap serial comms (i.e. use upload.com & download to
get a better comm program into A2 cp/m).

TTFN,
 Stevo