HLASM: V1R6 Language Ref

About this manualThis manual describes the syntax of assembler language statements, and providesinformation about writing source programs that are to be assembled by IBM HighLevel Assembler for z/OS & z/VM & z/VSE, Licensed Program 5696-234,hereafter referred to as High Level Assembler, or simply the assembler. It is meantto be used in conjunction with HLASM Programmer’s Guide.Detailed definitions of machine instructions are not included in this manual. See“Bibliography” on page 423 for a list of manuals that provide this information.Throughout this book, we use these indicators to identify platform-specificinformation:v Prefix the text with platform-specific text (for example, “Under CMS...”)v Add parenthetical qualifications (for example, “(CMS)”)v Marking lines above and below the text. Here are some of the marking lines weuse:z/OSInforms you of information specific to z/OS ® .End of z/OSz/VMInforms you of information specific to z/VM ® .End of z/VMz/VSEInforms you of information specific to z/VSE .End of z/VSEWho should use this manualCMS is used in this manual to refer to Conversational Monitor System on z/VM.HLASM Language Reference is for application programmers coding in the HighLevel Assembler language. It is not intended to be used for tutorial purposes, butis for reference only. If you are interested in learning more about assemblers, mostlibraries have tutorial books on the subject. It assumes you are familiar with thefunctional details of the Enterprise Systems Architecture, and the role ofmachine-language instructions in program execution.Programming interface informationThis manual is intended to help the customer create application programs. Thismanual documents General-Use Programming Interface and Associated GuidanceInformation provided by IBM High Level Assembler for z/OS & z/VM & z/VSE.© Copyright IBM Corp. 1982, 2008 vii