And the Linux feature only adds to the confusion...!
5799 TCQ - IBM HLASM LINUX IFL Z/TPF - PRPQ
It looks like a good fit but the z/TPF in the tittle starts to ring alarm bells.
From the announce letter:
IBM High Level Assembler for Linux to support z/TPF on an IFL processor is the
IBM
If you want to check that 6103 is really 1002 or 5407 is really 1002 then load
the files from the service envelope and have a look at them... The service
files look, act and can be manipulated like a tape.
To load files on to the x disk from an RSU on z.
vmfplcd load * * x env= 0602rsu