TPROT like the shift instruction second operand address is not used to
address data rather for simplistic terms is prog key checking if the user
can access/store the storage.
So what If I am not sure what the key is.
I guess I can do the following. Is my understanding ?
Thanks
MVC PROGKEY,CHKKEY
EX R0,TPROT
BC 3,ERROR_ADDRESS
TPROT TPROT ADRESS,0
ORG TPROT+5
PROGKEY DS X
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