You might try using SLIP with instruction fetch. I know it writes to the trace table, but I believe you can also have it write to a GTF dataset. Haven't looked at the doc in quite a while. I don't think having SLIP instruction fetch looking at code running in an estae will make any difference to SLIP, but have never tried it.

If you are using TSO TEST, set a breakpoint at some point where you can get the address of the estae routine.

Issue the SLIP command, start GTF,  then run the code.

Stop the SLIP. Stop GTF.

If you are not using  GTF, get a dump, format the trace table.

If you are using the trace table, you probably want to make sure the size of the table is sufficient. If there is a lot of other activity in the same machine that you are using to test your code, GTF is a better option.

Hope this helps.

    -- Dave Day

On 12/10/2025 7:40 AM, Joseph Reichman wrote:
I am writting an Estae recovery at work ( not my Zpdt system )

I am debugging with TSO TEST ( they don’t have XDC ) here

The recovery pgm is in a separate load module

Would like to have a backup debugger would anyone know if you can use debug 
tool for this

Thanks
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