From Newsgroup: comp.sys.cbm

... as in the subject... I have some questions to ask ;-)
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From Newsgroup: comp.sys.cbm

i'm working with Prologic Dos Classic (Expansionport Version) in one of my C=64's....

silverdr schrieb in Nachricht <40150c36@news.inet.com.pl>...

... as in the subject... I have some questions to ask ;-)

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From Newsgroup: comp.sys.cbm

Hello silverdr, Dirk,

Dirk wrote:

i'm working with Prologic Dos Classic (Expansionport Version)
in one of my C=64's....

wow, this could become an interesting thread. Please continue
your discussion within the csc group, don't start discussion
via private mail. Although I don't feel able to put only one
bit of information into this, I'm very interested in all
things you may find out or mention somewhere.

There's not much such information available via the
Google-Groups archives.


Womo

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------ to obtain more infos about me, look up the page ------
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From Newsgroup: comp.sys.cbm

Hi silverdr; you wrote:

.... as in the subject... I have some questions to ask ;-)

don't know, if I told this in the former "interleave" thread.
After I analysed the drive DOS ROM image dump of Prologic DOS
it's clear, that Prologic DOS does use the same interleave
values and the same interleave overflow routine as the
original CBM DOS V2.6.
Since the lower DOS ROM part is not contained in my version
of the Prologic drive DOS dump, I can't tell about the
directory entry interleave. So I believe, that Prologic-DOS
didn't replace the lower DOS ROM and therefore uses a
directory interleave of 3 as the original.


Womo

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------ to obtain more infos about me, look up the page ------
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From Newsgroup: comp.sys.cbm

Wolfgang Moser wrote:

this could become an interesting thread. Please continue
your discussion within the csc group, don't start discussion
via private mail.

Sure. I already tried to start it on private e-mail but since Dirk's
e-mail doesn't seem to be valid, I was going to get back here anyway ;-)

********************************************

i'm working with Prologic Dos Classic (Expansionport Version)
in one of my C=64's....

Classic? That means you have probably the later version... the one with
a single PCB on the floppy side?

I have finally collected (by pieces - with a great help of one very
generous guy from the Netherlands - Kudos to him! :-) a full set of Expansionport board as on:

http://blacha.srebrnysen.com/~silverdr/Prologic0.jpeg

and the two floppy-side boards as on:

http://blacha.srebrnysen.com/~silverdr/Prologic1.jpeg

and

http://blacha.srebrnysen.com/~silverdr/Prologic2.jpeg

The interesting thing is that the bigger [1] board with all the
important stuff, has a strange sort of "piggy-back" patch on the second
IC from the right in the top row. There are two ICs soldered one on top
of the other. It is barely visible on the picture (I need to fetch my
cam to get a better angle on it - that one was quickly scanned). I was wondering if it was the original "design" or some sort of repair/mod
attempt.

The pieces are supposed to be in working condition anyway. Therefore I
wanted to get it work first before I start doing the "rev-eng". I hoped
that somebody could let me know what are the jumpers for and how to
connect the floppy-boards (there is an airwire partially visible on the
[1] picture, which - I suppose - should connect the boards).

I wanted also to ask what is the floppy error channel message you get
after the (floppy) reset? My current (albeit quick) attempts succeeded
at installing the PCBs in the floppy and still getting it to reset
properly but the error channel always read "... CBM DOS...". Just like
without any expansion. It might be that I did not make a proper jumper connection but those supposedly feasible didn't change a thing.

And the last probably wish is (if I may ask) if there would be a chance
to get the ROM dumps from you? AFAIR the first versions had some bad
bugs inside and once I get it work, I will want to start the recreation
project as I did with DolphinDOS (you might have seen the results
at http://blacha.srebrnysen.com/~silverdr/DD2.png ) and the later ROMs
would be quite handy then ;-) Still missing the DolphinDOS3 ROMs (C64
side) also...

Best regards.

P.

--
Your password must be at least 18770 characters and
cannot repeat any of your previous 30689 passwords.
- Microsoft Windows 2000 Advanced Server SP1

Anyone said Microsoft didn't care about security?!

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From Newsgroup: comp.sys.cbm

Wolfgang Moser wrote:

don't know, if I told this in the former "interleave" thread.
After I analysed the drive DOS ROM image dump of Prologic DOS
it's clear, that Prologic DOS does use the same interleave
values and the same interleave overflow routine as the
original CBM DOS V2.6.
Since the lower DOS ROM part is not contained in my version
of the Prologic drive DOS dump, I can't tell about the
directory entry interleave. So I believe, that Prologic-DOS
didn't replace the lower DOS ROM and therefore uses a
directory interleave of 3 as the original.

Hm. We can discuss about this too. I will also be looking for newer ROMs
as I have once heard (in the eighties... :-) that the first versions had
some "childhood problems" - meaning bad bugs inside the ROM too. We
might compare the versions with mine and hopefully others and I would be
glad having the later ones then. It seems that my current Prologic is
most probably of those first series - judging by the hardware patches (provided those are original) visible on the bigger floppy board.
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