>>Any program that returns to the operating system by branching >>to the address it was told when it initially got control is >>assumed to have completed successfully. > >SVC 3 = normal completion >SVC 13 = abnormal completion
Absolutely correct but programs usually don't issue SVC3 directly but rather exit with a "BR R14". R14 points to an "SVC 3" instruction when programs get control from MVS. >That's not entirely accurate. It depends how the SVC 13 is issued. You probably mean the fact that the "code type" parameter of the ABEND macro detemines whether it will be seen as a user or a system abend, right? Since the OP's question seemed to more of a beginner's type of question, I didn't want to go into more (assembler) details. Usually, Sxxx abends are for system code, user abend for application code. You can of course code an SD37 abend and confuse everybody. Peter Hunkeler Credit Suisse ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
