SLIP SET,SA,A=SVCD,ID=S001,+
   DSPNAME=jobname'.dspname,+
   DSSA='jobname'.dspname,+
   RA=(0001C681),+
   DA=(0001C681,EQ,F1),+
   E

For data spaces, you must have the address in a register and do indirection
off that register. Neither DSPNAME (which is a dumping parameter) nor DSSA
has any bearing on the way slip does its data match. DSSA does help a lot
to limit the "false" PER interrupts.

The ALET to use is, in general, not obtainable. SLIP can use the AR
associated with the indirecting GPR at the time of the PER interrupt..

Peter Relson
z/OS Core Technology Design
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