I wouldn't expect a comparison operator compared with a condition code to work.
Use EQ on instructions that compare two operands and use Z on instructions that
don't.
Question will this work?
IF (SR,R1,R3,Z)
--
Shmuel (Seymour J.) Metz
http://mason.gmu.edu/~smetz3
עַם יִשְׂרָאֵל חַי
נֵ֣צַח יִשְׂרָאֵ֔ל לֹ֥א יְשַׁקֵּ֖ר
________________________________________
From: IBM Mainframe Assembler List <[email protected]> on behalf
of David Eisenberg <[email protected]>
Sent: Thursday, January 9, 2025 12:10 PM
To: [email protected]
Subject: TP instruction and SPMs
External Message: Use Caution
I'm hoping someone can help me... is it possible to code the TP (Test Decimal)
instruction within an IF macro (using IBM's Structured Programming Macros)?
Essentially, I'd like to use the SPMs to do something like this:
IF (TP,DUB,EQ,Z)
<DUB contains a valid packed value; it's safe to do packed arithmetic>
ELSE ,
<DUB isn't valid packed; don't risk an abend>
ENDIF ,
Of course I can get around this by not using the SPMs... but I'm wondering if
anyone knows if it's possible to use the IF macro in this way.
Thank you so much,
David
