H8, H88, H89, Z89, and H19 ROM Source Code

[Jeff Tranter]

I don't know if this is of use to anyone else, but I have entered the source code for the Heathkit ROM code for the H8 (PAM-8), H88/89 (MTR88), Z89 (MTR89), and H19 terminal (still in progress). It is based on the source code listings published by Heathkit.

The code can be cross-assembled with the ASL assembler and produces binaries that match the original ROMs.

You can find the code here: https://github.com/jefftranter/8080/tree/master/asm/Heathkit

Regards,

Jeff

[Les Bird]

Nice. Thanks Jeff... I can see this being useful.

Les

[James Entenman]

Thanks so much. I was wondering how to get this source code.

--
You received this message because you are subscribed to the Google Groups "SEBHC" group.
To unsubscribe from this group and stop receiving emails from it, send an email to sebhc+un...@googlegroups.com.
To view this discussion on the web visit

https://groups.google.com/d/msgid/sebhc/2dc169e8-30aa-4d73-99d1-88233367dfd5n%40googlegroups.com

.

[Bill Lewis]

I have this disk, and imaged it, but haven't done anything with it yet.

I had typed in that H-19 listing and made some changes to it.

Not idea what, it's been too many decades.

[Mark Garlanger]

The code is all available one directory down from the link that Jeff provided in his email - https://github.com/jefftranter/8080/tree/master/asm/Heathkit

Mark

To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/1119965821.3976930.1714085392656%40mail.yahoo.com.

[Mark Garlanger]

Bill,

   "MYH19.ASM" is the same name as was used by the Watzman H19 ROM offered by the Heath User's Group. I wonder if your file may have started from there, and then you made some modifications to it.

I have two versions of the source for that ROM, but both are smaller than your version by a few K. I've attached them to the email, and the manual is available on my site - https://heathkit.garlanger.com/software/library/HUG/docs/MYH19.DOC.txt

Mark

To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/873373ec-4b5c-40f5-90ba-4540d1773151n%40googlegroups.com.

[Jeff Tranter]

All of the source code was typed in based on the source listings published in Heahtkit manuals. I made some changes to adapt it to the "asl" assembler I am using.

The H19 source code is still in progress.

To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/CAAjkm7-8kyZfq3naRe6KmB5mM6j_R9fAFh%2BVyS6qk2JqQtGBkw%40mail.gmail.com.

[Bill Lewis]

Obviously you must be right.

I had no access to CP/M when I was playing with my H-19.

But I did modify the code, which I typed in.  Back then I used my own assembler, which I wrote in APL, and ran on the IBM mainframe at work.

Nothing survives of any of that.

A friend got an H-89, and the pictured floppy is from his estate.  But the label has my initials in my handwriting.

So I can't explain what that was.

Bill