C414 - z/OS Assembler Programming, Part 2: Interfaces: Detail of contents ...

   Standard linkage conventions: save area linking, return codes, getting PARM from JCL
   Introduction to the program binder
   Introduction to debugging
   Handling variable length records
   QSAM update in place
   31-bit addressing concerns
   Writing re-entrant code
   QSAM file processing: OPEN, GET, PUT, CLOSE, PUTX, SYNAD
   Subroutine linkages and storage management: CALL, LOAD, DELETE, LINK, XCTL, GETMAIN, FREEMAIN
   Some system services: ABEND, WTO, SNAP, TIME, STCKCONV, CONVTOD