IBM GC28-6514-7 OS Assembler Rel 20 Dec70 free download

File name GC28-6514-7_OS_Assembler_Rel_20_Dec70.pdf

File No. S360-21 Order No. GC28-6514-7 OS Systems Reference Library IBM System/360 Operating System Assembler Language This publication contains specifications for the IBM System/360 Operating System Assembler Language (Levels E and F) . The assembler language is a symbolic programming language used to write programs for the IBM System/360. The language pro- vides a convenient means for representing the machine instructions and related data necessary to program the IBM System/360. The IBM System/360 Operating system Assem- bler Program processes the language and provides auxiliary functions useful in the preparation and documentation of a program, and includes facilities for processing the assembler macro language. Part I of this publication describes the assembler language. Part II of this publication describes an extension of the assembler language -- the macro language used to define macro instructions. PREFACE This publication is a reference manual operations are discussed in the publication for the programmer using the assembler IBM System/360: Principles of Operation, language and its features. Form A22-6821. Information on program assembling, linkage editing, executing, Part I of this publication presents interpreting listings, and assembler pro- information common to all parts of the gramming considerations is provided in IBM language followed by specific information System/360 Operating System: Assembler (~ concerning the symbolic machine instruction Programmer's Guide, Form C28-6595 and IBM codes and the assembler program functions System/360 Operating System: Assembler~) provided for the programmer's use. Part II Programmer's Guide, Form C26-3756. contains a description of the macro lan- guage and procedures for its use. Appendixes A through J follow Part II. The following publications are referred Appendixes A through F are associated with to in this publication: Parts I and II and present such items as a summary chart for constants, instruction IBM System/360 Operating System: Intro- listings, character set representations, duction, Form C28-6534 and other aids to programming. Appendix G contains macro language summary charts, and IBM. System/360 Operating System: Linkage Appendix H is a sample program. Appen