🚀 go-pugleaf

A co-worker is trying to make a Rexx interface function package to 
a set of encryption functions under MVS. He is using Rexx external functions.
The function package is being written in ASM390 (HLASM to be precise).

We have some difficulty debugging our efforts. I was very used to use the 'TEST'
command under TSO. In OS/2 we can debug a Rexx external function by 
debugging the command processor and putting a breakpoint on the loading
of the DLL that contains the Rexx external function.

In TSO I do not have a clue. Can I 'TEST' IKJEFT01 and put a deferred breakpoint
on the loading of the function? I think not.

Can anybody shed some light on this problem? I presume the people who wrote
the Rexx functions themselves must have had some kind of debugger?

Thanks in advance...

Rene' V. Jansen