HLASM: V1R6 Language Ref

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Macro and conditional assembly language summaryTable 73. System variable symbolsSystem Variable SymbolAvailability¹Type²TypeAttr.³ Scope Initialized or set to&SYSADATA_DSN HLA2 C U,O L Current associated datafile&SYSADATA_MEMBER HLA2 C U,O L Current associated datafile member name&SYSADATA_VOLUME HLA2 C U,O L Current associated datafile volume identifierValuechanged by May be used inConstantthroughoutassemblyConstantthroughoutassemblyConstantthroughoutassembly&SYSASM HLA1 C U G Assembler name Constantthroughoutassembly&SYSCLOCK HLA3 C U L Current date and time Constantthroughoutmacroexpansion&SYSDATC HLA1 C,A N G Assembly date (withcentury)Constantthroughoutassembly&SYSDATE AsmH C U G Assembly date Constantthroughoutassembly&SYSECT All C U L Name of control sectionin effect where macroinstruction appears&SYSIN_DSN HLA1 C U L Current primary inputdata set name&SYSIN_MEMBER HLA1 C U,O L Current primary inputmember name&SYSIN_VOLUME HLA1 C U,O L Current primary inputvolume identifier&SYSJOB HLA1 C U G Source module assemblyjobname&SYSLIB_DSN HLA1 C U L Current macro libraryfilename&SYSLIB_MEMBER HLA1 C U,O L Current macro librarymember name&SYSLIB_VOLUME HLA1 C U,O L Current macro libraryvolume identifier&SYSLIN_DSN HLA2 C U L Current object data setnameConstantthroughoutdefinition;set bySTART,CSECT,RSECT,DSECT, orCOMConstantthroughoutdefinitionConstantthroughoutdefinitionConstantthroughoutdefinitionConstantthroughoutassemblyConstantthroughoutdefinitionConstantthroughoutdefinitionConstantthroughoutdefinitionConstantthroughoutassemblyCharacter expressionsCharacter expressionsCharacter expressionsCharacter expressionCharacter expressionsArithmetic expressionsCharacter expressionsCharacter expressionsCharacter expressionsCharacter expressionsCharacter expressionsCharacter expressionsCharacter expressionsCharacter expressionsCharacter expressionsCharacter expressionsCharacter expressions412 HLASM: V1R6 Language Ref
Macro and conditional assembly language summaryTable 73. System variable symbols (continued)System Variable SymbolAvailability¹Type²TypeAttr.³ Scope Initialized or set to&SYSLIN_MEMBER HLA2 C U,O L Current object data setmember name&SYSLIN_VOLUME HLA2 C U,O L Current object data setvolume identifierValuechanged by May be used inConstantthroughoutassemblyConstantthroughoutassembly&SYSLIST All C any L Not applicable Notapplicable&SYSLIST(n)&SYSLIST(n,m)All C any L Corresponding macroinstruction operand&SYSLOC AsmH C U L Location counter in effectwhere macro instructionappearsConstantthroughoutdefinitionConstantthroughoutdefinition;set bySTART,CSECT,RSECT,DSECT,COM, andLOCTR&SYSMAC HLA3 C U,O L Macro name Constantthroughoutdefinition&SYSMAC(n)₁ HLA3 C U,O L Ancestor macro name ConstantthroughoutdefinitionCharacter expressionsCharacter expressionsN'&SYSLIST inarithmetic expressionsArithmetic expressions ifoperand is self-definingtermCharacter expressionsCharacter expressionsArithmetic expressionsArithmetic expressions&SYSM_HSEV HLA3 A N G 0 Mnote Arithmetic expressions&SYSM_SEV HLA3 A N G 0 At nestingandunnesting ofmacros,fromMNOTE&SYSNDX All C N L Macro instruction index Constantthroughoutdefinition;unique foreach macroinstruction&SYSNEST HLA1 A N L Macro instruction nestinglevel&SYSOPT_DBCS HLA1 B N G DBCS assembler optionindicatorConstantthroughoutdefinition;unique foreach macronesting levelConstantthroughoutassemblyArithmetic expressionsArithmetic expressionsCharacter expressionsArithmetic expressionsCharacter expressionsArithmetic expressionsCharacter expressions&SYSOPT_OPTABLE HLA3 C U G OPTABLE assembleroption valueConstantthroughoutassemblyLogical expressionsCharacter expressionsAppendix C. Macro and conditional assembly language summary 413
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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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Name entry . . . . . . . . . . . .
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Macro definitionA macro definition
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Macro instructionThe macro instruct
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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
Page 380 and 381: SETB instructionOR Format: Logical-
Page 382 and 383: SETC instructionSETCinstructionThe
Page 384 and 385: SETC instruction|LCLC &C1,&C2LCLC &
Page 386 and 387: Substring notationv When e2 has a v
Page 388 and 389: Substring notation||||ExamplesA2D(0
Page 390 and 391: Substring notationC2X Format: Funct
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 440 and 441: NoticesPURPOSE. Some states do not
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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