On Thu, 6 Jan 2022 18:37:01 +0000, Colin Paice wrote:

>Making PLX Internal to IBM may be to protect its Intellectual Property.  I
>remember a vendor taking some IBM source,, renaming it and shipping it.
>When it went to court, ...
>
We did that.  Through MVS 3.8 IBM source code was open.  We took an
Assembler listing that embedded the PL/X as comments.  We modified
the assembler source for our product.  IBM couldn't touch us.  Maintenance
wasn't easy.  And we needed to do it twice, once for MVS, once for VS/E.

-- gil

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