On Mon, 24 Sep 2012 00:36:18 -0400, Gerhard Postpischil wrote: >> >> Am I suppoused to return with a register other then r14 > >You are expected to branch back using R14, or else issue SVC 3 >(less efficient, but imperative if you've lost R14), or branch >to the SVC 3 call in the CVT. The documented return is via R14. > Why "less efficient"? Is it because R14 points to a PC entry which may be more efficient than SVC?
But I agree with Shmuel (and you) because I've heard that some (ISVs?) may front-end the entry and point R14 to imperative cleanup code. Don't throw away R14. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
