The last time I looked the CBT tape had a few OCO programs, but someone may 
have disassembled and commented all of them by now. I know that Gerhard 
Postpischil ז״ל, a departed friend and colleague, did so for at least one.

IAC, I know of nothing on the CBT tape requires paying license fees, so no 
shareware,

-- 
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
עַם יִשְׂרָאֵל חַי
נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר



________________________________________
From: IBM Mainframe Assembler List <[email protected]> on behalf 
of Tony Thigpen <[email protected]>
Sent: Friday, July 19, 2024 11:37 AM
To: [email protected]
Subject: Re: Don't do this......

Are CBT files shareware or open source?

Tony Thigpen

Seymour J Metz wrote on 7/19/24 11:23 AM:
> Mystery code is often clearer if you assemble it and look at the listing.
>
> BTW, shareware is not the same as open source.
>
> --
> Shmuel (Seymour J.) Metz
> http://mason.gmu.edu/~smetz3
> עַם יִשְׂרָאֵל חַי
> נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר
>
>
>
> ________________________________________
> From: IBM Mainframe Assembler List <[email protected]> on 
> behalf of Tony Thigpen <[email protected]>
> Sent: Friday, July 19, 2024 10:56 AM
> To: [email protected]
> Subject: Don't do this......
>
> Found in some shareware code:
>
>
>            MVI   RO,2
>
> Please page down when you think you know what the program was doing.
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> elsewhere
> RO       EQU   SEEKO+7,1
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> I finally figured out what was happening when I copied the code from the
> PC editor I was using to view the shareware code to a test program in
> xedit so I could see what it was actually doing. The character after the
> "R" was the letter 'OH', not a 'zero', but the pc editor does not
> display a significantly different item for zero and the letter 'O'.
>
>
>
> Tony Thigpen

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