IBM SC33-6196-1 VSE Advanced Functions Application Programming Macro Users Guide Mar85 free download

File name SC33-6196-1_VSE_Advanced_Functions_Application_Programming_Macro_Users_Guide_Mar85.pdf

VSEIAdvanced Functions Application Programming Macro User's Guide Program Number 5666-301 Order Number SC33-6196-1 File No. 5370/4300-30 PREFACE This book is a guide for programmers using the VSE/Advanced Functions macro instructions (macros). Use of both input/output control system (IOCS) macros and the system control macros is described. After an introductory chapter on the types and use of macros, Chapter 2 gives a general description of how to define and process files with the Sequential Access Method (SAM). The subsequent chapters on file processing with SAM describe how to open, process, and close files on the different types of I/O devices, and also how to process device-independent system files. A chapter on system services includes discussions of such topics as virtual storage control, program linkage, and multitasking. The use of the Direct Access Method (DAM) and Physical laCS (PIOCS) is described in appendixes. (The Indexed Sequential Access Method, ISAt-l-, is no longer described in this manual.) Several other appendixes on a variety of topics, and an index complete the book. As this book is intended as a guide to macro usage, you should be familiar with others that introduce important prerequisite information on the nature and use of laCS and system control programs: