Restoring the location counter in the current context causes an
illegal modification of the location counter for a psect with the
EXE and NOMIX attributes.
Error: You cannot modify the location counter in a psect with the
EXE and NOMIX attributes.
User Action: If you need to modify the location counter, specify
the MIX psect attribute. See Chapter 5 in the Reference Manual
for a description of the MIX psect attribute.