On Tue, 26 Feb 2013 12:46:13 -0600, Bill Godfrey wrote: > N R15,=A(X'FFFFFFF0')
This is a case where my preference would be to use a newer instruction.
NILL R15,X'FFF0'
It is part of the Relative-and-Immediate facility that was required for OS/390
2.10.
--
Tom Marchant
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