Re: Does anyone have CP/M disk images that are not already on zimmers.net?

Here you can find cpm source:
http://www.z80.eu/c128.html

http://www.cpm.z80.de/binary.html
http://www.cpm8680.com/cpmc64/cpmsys2.htm


On 01/06/2017 08:48 PM, Ethan Dicks wrote:
> Hi, All,
>
> I'm wrapping up a fun little project and one of the details to nail
> down is why this CP/M program from 1979 runs on some versions of CP/M
> 3.0 Plus and not others.  In particular, I get completely successful
> operation from the versions on zimmers.net that say they are from "1
> AUG 85", but the ones from 8 DEC 85 and 28 MAY 87 do not work.
> Specifically, the game asks for user input with a BDOS 10 call (read
> buffered input) and on the oldest version, it works, but on the newer
> versions, the query text gets printed (BDOS 2 call), the cursor is in
> the right place, but keystrokes (including ^C) are not recognized.
> This same game runs perfectly fine on a number of CP/M emulators and
> CP/M 2.2 (it would have been originally shipped with CP/M 1.4 since
> 2.2 is really a 1980 product).
>
> I've written a short utility to test the BDOS 10 call and so far, it's
> failing to fail.  Pity.  It's so much easier when things break the way
> they are supposed to.  I'm still digging for why this app runs on some
> versions and not others.  I suspect something may have changed with
> the BDOS 10 call and I'm just not finding it in the docs.
>
> So for now, I'm looking for other examples of bootable CP/M 3.0 Plus
> disk images so I can tighten the bounding box about what works and
> what does not work.
>
> It goes without saying that any new images should end up on zimmers.net too.
>
> Thanks!
>
> -ethan
>
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