I believe you. The input for my program tends to be relatively smaller assemblies.
> Correct me if I am wrong but total number of records are at the end of the > file record type Two Could be. That is how I read the following: Record Count FL4 On an ADATA Compilation Unit End record, a count of all the ADATA records for this compilation unit. > I think the read backward is for tapes only RDBACK Input data set, positioned to read backward. Restriction: Variable-length records cannot be read backward. The RDBACK option is not allowed for DASD data sets. Well, it's not for disk. And hard to picture for a card reader. Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Joseph Reichman Sent: Sunday, January 26, 2020 3:39 PM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Prolog code of Metal C program (register 0) I down loaded the look program from the CBT site it generated huge amounts of sysadata as it maps many or most z/os control blocks having a pointer to symbol type record is a lot quicker the reading the VB file Correct me if I am wrong but total number of records are at the end of the file record type Two I think the read backward is for tapes only ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
