IBM System/3G0 Operating System
Supervisor and Data Management Macro Instructions

This publication shows application programmers how to code the supervisor and data management macro instructions available in the IBM System/360 Operating System assembler language. Included in this publication are descriptions of macro instructions for the three main configurations of the operating system: systems with the primary control program (PCP); systems that provide multiprogramming with a fixed number of tasks (MFT); and systems that provide multiprogramming with a variable number of tasks (MVT).

Programmers should have a good understanding of the information contained in IBM System/360 Operating System; Supervisor Services, Order Number GC28-6646, and IBM System/360 Operating System; Data Management Services, Order Number GC26-3746, before using this publication.

Descriptions of macro instructions applying to graphics, teleprocessing, magnetic character readers, optical reader-sorters, or optical readers are included in separate publications. These publications are indexed in IBM System/360 Bibliography, Order Niimber GA22-6822.

This edition contains information about the time-sharing option (TSO), which is not yet available. The TSO information should be used only for planning purposes until the time-sharing option becomes available.