IBM GC28-6764-1 TSO Guide to Writing a Terminal Monitor Program or a Command Processor Rel 21 Mar72 free download

File name GC28-6764-1_TSO_Guide_to_Writing_a_Terminal_Monitor_Program_or_a_Command_Processor_Rel_21_Mar72.pdf

File No. 8360-36 Order No. GC28-6764-1 os Time Sharing Option Guide to Writing a Terminal Monitor Program Dr a Command Processor OS Release 21 This publication describes features of TSO that can be replaced, modified, or added to by each installation of TSO, to adapt the command system to the installation's particular needs. The manual is intended for programmers whose responsibility is to modify the portions of TSO that communicate directly with the user at the terminal. The publication discusses the Terminal Monitor Program and the Command Processors from the viewpoint of their replaceability, and describes the programming features provided within TSO for user-written Terminal Monitor Programs, Command Processors, and applications programs. These features include: Service Routines Macro Instructions SVCs The Dynamic Allocation Interface Routine (DAIR) The TEST Command Processor second Edition (March, 1972) This is a major revision of, and obsoletes, GC28-6764-0 and Technical Newsletter GN28-2484. Changes are listed in the summary of Amendments. Changes or additions to the text and illustrations are indicated by a vertical line to the left of the change. This edition applies to release 21 of the IBM System/360 Operating System, and to all subsequent releases until otherwise indicated in new editions or Technical Newsletters. Changes are continually made to the information herein. Before using this publication in connection with the operation of IBM systems, consult the latest IBM System/360 and System/370 SRL Newsletter, Order No. GN20-0360, for the editions that are applicable and current. Requests for copies of IBM publications should be made to your IBM repesentative or to the IBM branch office serving your locality. A form for readers' comments is provided at the back of this publication. If the form has been removed, comments may be addressed to IBM Corporation, Programming Systems Publications, Department D58, PO Box 390" Poughkeepsie, N.Y. 12602. Comments become the property of IBM.