Do you get what Ed is saying, Steve? Your eyecatcher for some GETMAINed control block so you can find it easily in a dump is COMSTOCK. You do an F COMSTOCK in a dump, and you get a hit, but lo and behold, it is the literal =C'COMSTOCK' in your assembled CSECT, not the GETMAINed control block. Using MVCIN and making the literal KCOTSMOC instead avoids that (admittedly pretty tiny) problem. A labeled constant rather than a literal would not change this problem (although it might be a little clearer to the reader than =C'KCOTSMOC'+7).
Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf Of Edward E. Jaffe Sent: Monday, October 10, 2005 1:22 PM To: [email protected] Subject: Re: MVCIN instruction Steve Comstock wrote: > Yes, I saw that. But what does it mean to get a false > hit on an eyecatcher? Do you mean looking at the code > in an editor (find command would find an MVC? - of course > then using labeled constants gets around that) or do > you mean looking at an eyecatcher in a dump? Still, is > this a common ocurrence? You may not always be able to find your control blocks using the registers at time of error. In such cases, you may need to issue a FIND command under IPCS specifying the control block's eyecatcher. A "false hit" would occur when you find the eyecatcher in other than the expected locatiion, e.g., the constants area of the program that creates the control block. ---------------------------------------------------------------------- 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
