HLASM: V1R6 Language Ref

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NoticesPURPOSE. Some states do not allow disclaimer of express or implied warranties incertain transactions, therefore, this statement may not apply to you.This information could include technical inaccuracies or typographical errors.Changes are periodically made to the information herein; these changes will beincorporated in new editions of the publication. IBM may make improvementsand/or changes in the product(s) and/or the program(s) described in thispublication at any time without notice.Any references in this information to non-IBM Web sites are provided forconvenience only and do not in any manner serve as an endorsement of those Websites. The materials at those Web sites are not part of the materials for this IBMproduct and use of those Web sites is at your own risk.If you are viewing this information softcopy, the photographs and colorillustrations may not appear.TrademarksThe following are trademarks of International Business Machines Corporation inthe United States, or other countries, or both.||AIXBookMasterCICSDFSMSDFSMS/MVSDFSMSdfpEnterprise Systems Architecture/370Enterprise Systems Architecture/390IBMLanguage EnvironmentMVSMVS/DFPMVS/ESAOS/390SPSystem/370System/390VM/ESAVSE/ESAz/OSz/VMz/VSELinux is a trademark of Linus Torvalds in the United States, other countries, orboth.UNIX is a registered trademark of The Open Group in the United States and othercountries.Microsoft and Windows are trademarks of Microsoft Corporation in the UnitedStates, other countries, or both.Other company, product, and service names may be trademarks or service marksof others.422 HLASM: V1R6 Language Ref
BibliographyHigh Level AssemblerPublicationsHLASM General Information, GC26-4943HLASM Installation and Customization Guide,SC26-3494HLASM Language Reference, SC26-4940HLASM Licensed Program Specifications,GC26-4944HLASM Programmer’s Guide, SC26-4941Toolkit Feature PublicationsHLASM Toolkit Feature User’s Guide, GC26-8710HLASM Toolkit Feature Debug ReferenceSummary, GC26-8712HLASM Toolkit Feature Interactive Debug FacilityUser’s Guide, GC26-8709HLASM Toolkit Feature Installation andCustomization Guide, GC26-8711Related Publications(Architecture)Enterprise Systems Architecture/390 Principles ofOperation, SA22-7201Enterprise Systems Architecture/370 Principles ofOperation, SA22-7200System/370 Principles of Operation, GA22-7000System/370 Extended Architecture Principles ofOperation, SA22-7085z/Architecture Principles of Operation, SA22-7832Related Publications for z/OSz/OS:z/OS MVS JCL Reference, SA22-7597z/OS MVS JCL User’s Guide, SA22-7598z/OS MVS Programming: Assembler ServicesGuide, SA22-7605z/OS MVS Programming: Assembler ServicesReference, Volumes 1 and 2, SA22-7606,SA22-7607z/OS MVS Programming: Authorized AssemblerServices Guide, SA22-7608z/OS MVS Programming: Authorized AssemblerServices Reference, Volumes 1 - 4, SA22-7609 -SA22-7612z/OS MVS Program Management: User’s Guideand Reference, SA22-7643z/OS MVS System Codes, SA22-7626z/OS MVS System Commands, SA22-7627z/OS MVS System Messages, Volumes 1 - 10,SA22-7631 - SA22-7640z/OS Communications Server: SNA Programming,SC31-8829OS/390:OS/390 MVS System Messages, Volumes 1 - 5,GC28-1784 - GC27-1788UNIX System Services:z/OS UNIX System Services User’s Guide,SA22-7801DFSMS/MVS :z/OS DFSMS Program Management, SC27-1130z/OS DFSMSdfp Utilities, SC26-7414TSO/E (z/OS):z/OS TSO/E Command Reference, SA22-7782TSO/E (OS/390):OS/390 TSO/E Command Reference, SC28-1969SMP/E (z/OS):SMP/E Messages, Codes, and Diagnosis,GA22-7770SMP/E Reference, SA22-7772SMP/E User’s Guide, SA22-7773SMP/E (OS/390):OS/390 SMP/E Messages and Codes, SC28-1738OS/390 SMP/E Reference, SC28-1806OS/390 SMP/E User’s Guide, SC28-1740Related Publications for z/VMz/VM: VMSES/E Introduction and Reference,GC24-6130z/VM: Service Guide, GC24-6117z/VM: CMS Commands and Utilities Reference,SC24-6073z/VM: CMS File Pool Planning, Administration,and Operation, SC24-6074© Copyright IBM Corp. 1982, 2008 423
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High Level Assembler for z/OS & z/V
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Note!Before using this information
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|Open code . . . . . . . . . . . .
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Programming interface informationOr
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IBM High Level Assembler for z/OS &
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Syntax notationFormat▌A▐ ▌B
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Double-byte character set notationx
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Summary of changesxvi HLASM: V1R6 L
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Chapter 1. IntroductionA computer c
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Assembler languagev Macro instructi
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Assembler programProcessingConditio
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Coding made easierCoding made easie
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Chapter 2. Coding and structureThis
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Character setTable 4. Examples usin
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Assembler language coding conventio
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Assembler language structureThe mac
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Assembler language structureMachine
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Assembler language structureConditi
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Mnemonic tags|||||||||For example,
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Terms, literals, and expressions- T
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Terms, literals, and expressionsAss
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Terms, literals, and expressionsUsi
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Terms, literals, and expressions|||
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Terms, literals, and expressionsz/V
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Terms, literals, and expressionsTab
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Terms, literals, and expressions1.
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Terms, literals, and expressions1.
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Terms, literals, and expressions┌
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Terms, literals, and expressionsA-Y
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Chapter 3. Program structures and a
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SourcemoduleA source module is comp
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Beginning of a source modulev The S
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Beginning of a source moduleReferen
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Beginning of a source moduleNote: T
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Beginning of a source moduleClass l
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Beginning of a source modulez/VM an
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AddressingBase Address Definition:
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QualifiedDependentaddressingQualifi
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Addressingz/VM and z/OSWhen you spe
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Addressing..EX_SYM DC V(EXMOD1) Add
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AddressingSee the appendix “Objec
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Part 2. Machine and assembler instr
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Chapter 4. Machine instruction stat
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Input/output operationsThe input or
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Branching with extended mnemonic co
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Statement formatsSymbolic operation
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Operand entriesRegistersYou can spe
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Operand entriesv Explicitly—in a
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Operand entriesImmediateused by the
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Examples of coded machine instructi
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Chapter 5. Assembler instruction st
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*PROCESS statementstatement, follow
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ACONTROL instruction►►NOCOMPAT,
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ACONTROL instructionFLAG(PAGE0)inst
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ACONTROL instruction|||may be fetch
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AINSERT instruction►►sequence_s
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ALIAS instruction||||||The alias_st
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AMODE instructionCATTR instruction
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CATTR instructionRMODE(ANY)The text
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CCW and CCW0 instructionssupport 31
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CEJECT instructionIf number of line
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CNOP instructionAfter the BALR inst
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COPY instructioncopied from either
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CSECT instructionsame section name
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CXD instructionZETA: the resulting
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DC instruction10EBP(7)L2’12’the
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DC instructionTable 17. Length attr
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DC instruction4. Double-byte data i
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DC instructionTable 19. Type codes
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DC instructionYou may omit the modi
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DC instructionfirst constant to be
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DC instructionTable 21. Specifying
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DC instruction—Character constant
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DC instruction—Character constant
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DC instruction—Graphic constantTa
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DC instruction—Fixed-point consta
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DC instruction—Fixed-point consta
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DC instruction—Decimal constantsD
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DC instruction—Address constants|
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DC instruction—Address constantsT
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DC instruction—Offset constantIn
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DC instruction—Hexadecimal floati
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DC instruction—Decimal floating-p
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Syntax of binary, decimal, and hexa
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DC instruction—Binary floating-po
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DROP instructionLabeledDependentIf
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DS instructionv An ordinary symbolv
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DS instructionthe data that follows
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DSECT instructionTo effect referenc
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DXD instructionnominal_valueis the
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END instructionNotes:1. If the END
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EQU instruction||||to the symbol in
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EQU instruction|FPR Register - Floa
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EXITCTL instructionSee the section
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ISEQ instruction►►sequence_symb
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LOCTR instructionA LOCTR name may b
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LTORG instructionAddressingDuplicat
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MNOTE instructionNote: The maximum
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OPSYN instruction||||||v An operati
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ORG instruction||||||||If symbol de
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ORG instructionThat is, the ORG ins
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PRINT instructionPRINT instructionT
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PRINT instructionexceeded the macro
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PUNCH instructionv A pair of single
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REPRO instruction||Notes:1. The ide
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RSECT instructionThe beginning of a
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TITLE instructionv Provides heading
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TITLE instructionIf the TITLE state
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USING instructioninstructions suppo
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USING instructionby means of anothe
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USING instructionLabeled USING inst
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USING instructionDomain of a labele
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USING instructionIf the dependent U
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XATTR instructionXATTR instruction
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XATTR instructionSCOPE(MODULE), abb
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232 HLASM: V1R6 Language Ref
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Name entry . . . . . . . . . . . .
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Macro definitionA macro definition
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Macro instructionThe macro instruct
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240 HLASM: V1R6 Language Ref
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Where to define a macro in a source
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Prototype statement|||||specified o
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Model statementsEach field or subfi
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Model statementsTable 37. Rules for
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Model statements||v Variable symbol
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Symbolic parametersPositionalKeywor
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Other conditional assembly instruct
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AREAD instruction||If no operand is
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MEXIT instructionThe MEXIT instruct
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System variable symbols1 macro2 get
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&SYSADATA_MEMBER System Variable Sy
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&SYSDATC System Variable SymbolYYYY
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&SYSECT System Variable Symbolv Sta
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&SYSIN_MEMBER System Variable Symbo
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&SYSLIB_DSN System Variable SymbolS
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&SYSLIN_DSN System Variable SymbolE
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&SYSLIST System Variable Symbolposi
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&SYSLOC System Variable Symbolinstr
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&SYSNDX System Variable Symbol1 MAC
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&SYSNDX System Variable SymbolState
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&SYSOPT_RENT System Variable Symbol
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&SYSPRINT_DSN System Variable Symbo
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&SYSPUNCH_DSN System Variable Symbo
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&SYSSEQF System Variable Symbol1. I
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&SYSTEM_ID System Variable SymbolNo
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&SYSTERM_VOLUME System Variable Sym
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&SYSVER System Variable Symbol294 H
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Macro instruction format|name_entry
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Macro instruction formatOperandYou
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Macro instruction formatAny keyword
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Macro instruction formatparameters
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Sublists in operandsTable 48. Relat
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Values in operandsUnquotedSpecial2.
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Values in operands’SPACES ALLOWED
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Levels of macro call nestingLevels
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Levels of macro call nestingCOMPAT(
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Levels of macro call nesting&SYSSEQ
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SET symbolsSET symbolsSET symbols a
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SET symbolsTable 50. Features of SE
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SET symbolspreceding 999999 element
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Data attributesTable 51. Data attri
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Data attributesThe values of attrib
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Data attributesV R-, V-type address
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Data attributes|||||||||Notes:1. Or
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Data attributesv If the first opera
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Data attributesCount attribute (K')
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Data attributes||||||defined attrib
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Sequence symbolsparameter wherever
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LookaheadSequencelater defined by O
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GBLA, GBLB, and GBLC instructionsGB
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LCLA, LCLB, and LCLC instructions,
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Assigning values to SET symbolsLogi
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Assigning values to SET symbolsTabl
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SETA instructionTable 58. Variable
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SETA instructionB2A(’’) has val
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SETA instruction|||||||||||||||||||
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SETA instructionAfter the following
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SETA instruction10. An arithmetic e
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SETA instructionarithmetic value
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SETB instructionv A logical express
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SETB instructionOR Format: Logical-
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SETC instructionSETCinstructionThe
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SETC instruction|LCLC &C1,&C2LCLC &
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Substring notationv When e2 has a v
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Substring notation||||ExamplesA2D(0
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Page 392 and 393: Substring notationSuppose the SETC
Page 394 and 395: Substring notationX2C(’’) has v
Page 396 and 397: Substring notationFor example, eith
Page 398 and 399: Substring notationStatement 1 assig
Page 400 and 401: SETAF instruction►► variable_sy
Page 402 and 403: AIF instructionsequence_symbolis a
Page 404 and 405: AIF instructionAIFB—synonym of th
Page 406 and 407: ACTR instruction►►sequence_symb
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Page 410 and 411: MHELP optionsparameters are dumped
Page 416 and 417: Assembler instructions and statemen
Page 422 and 423: Summary of constantsTable 65. Summa
Page 424 and 425: Macro and conditional assembly lang
Page 436 and 437: Standard character set code tableHe
Page 438 and 439: Standard character set code tableHe
Page 442 and 443: z/VM: CP Planning and Administratio
Page 444 and 445: ALIAS instruction 108maximum operan
Page 446 and 447: comment statements (continued)ordin
Page 448 and 449: GG-type graphic constant 144GBLA in
Page 450 and 451: macro instructions (continued)opera
Page 452 and 453: eference constant (R) 154reference
Page 454 and 455: UUHEADPRINT instruction 206unary op
Page 456: Readers’ Comments — We’d Like
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