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#110573 - 08/10/17 09:49 PM Re: Kontron PSI98 [Re: rfka01]  
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Looking through ancient comp.os.cpm threads I found this post

http://www.z80cpu.eu/files/archive/news/comp.os.cpm/threads/df780e68a796d642.html

Wonder if we should contact the guy (he almost certainly meant the PSIΨ80, but hey!) cool


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#110577 - 08/11/17 02:59 AM Re: Kontron PSI98 [Re: rfka01]  
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Al Kossow Offline
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posted: Wed, Mar 23 1988

#110578 - 08/11/17 08:49 AM Re: Kontron PSI98 [Re: rfka01]  
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Duke Online content
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If you press CTRL-K when the PROM BOOT message is displayed you get into the intergrated debugger:

[Linked Image]

I already suspected that there is something wrong with the memory mapping, so that's a nice way to tackle that.

There is also a disk test:

[Linked Image]

You can access it by entering "J 1800" in the debugger.

#110587 - 08/13/17 08:59 AM Re: Kontron PSI98 [Re: rfka01]  
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Ok, a few fixes later we get this:

[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]
[Linked Image]

#110588 - 08/13/17 09:03 AM Re: Kontron PSI98 [Re: rfka01]  
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Wow, nice!
And congrats that you already made your way so far ... KOS is a bit ... convoluted smile


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
#110592 - 08/13/17 10:21 PM Re: Kontron PSI98 [Re: rfka01]  
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Yeah KOS has indeed some peculiarities, but an extensive manual is available so it's not too bad.

Among some other fixes graphics mode rendering has now been added:

[Linked Image]
[Linked Image]

#110593 - 08/13/17 11:17 PM Re: Kontron PSI98 [Re: rfka01]  
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What's wrong with the lowercase i?

#110594 - 08/14/17 07:29 AM Re: Kontron PSI98 [Re: rfka01]  
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I see three possibilities:

  • It's correct and supposed to look like this
  • It's a bad dump (unlikely since it was already dumped twice)
  • The owner changed it (possible since the checksum on the label doesn't match the file contents)


#110595 - 08/14/17 09:31 AM Re: Kontron PSI98 [Re: rfka01]  
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[Linked Image]

The machine certainly has a history - those relay and i/o cards point to industrial use. The disk drives are the other way round from the manuals - so I wouldn't put it past whoever changed this to also tamper with the ROMs.

I hope to get the PSI80 ROMs in some time soon - then we'll see how they dotted their i's there smile


NCR DMV- DEC Rainbow- Siemens PCD- ITT 3030-Oly People- Acorn A5000- Olivetti M20
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