HLASM Language Reference

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Assembler Instructions and Statements Appendix A. Assembler Instructions Figure 110 summarizes the basic formats of assembler instructions, and Figure 111 on page 405 summarizes assembler statements. Figure 110 (Page 1 of 5). Assembler Instructions Operation Entry Name Entry Operand Entry ACONTROL A sequence symbol or space One or more operands, separated by commas ACTR A sequence symbol or space An arithmetic SETA expression ADATA A sequence symbol or space One-to-four decimal, self-defining terms, and one character string, separated by commas. AEJECT A sequence symbol or space Taken as a remark AGO A sequence symbol or space A sequence symbol AIF A sequence symbol or space A logical expression enclosed in parentheses, immediately followed by a sequence symbol AINSERT A sequence symbol or space A character string, followed by FRONT or BACK AMODE Any symbol or space 24, 31, 64, ANY or ANY31 ALIAS A symbol A character string or a hexadecimal string ANOP A sequence symbol or space Taken as a remark AREAD Any SETC symbol NOPRINT, NOSTMT, CLOCKB, CLOCKD, or spaces ASPACE A sequence symbol or space An absolute expression CATTR (MVS and CMS) A valid program object external class name One or more attributes CCW Any symbol or space Four operands, separated by commas CCW0 Any symbol or space Four operands, separated by commas CCW1 Any symbol or space Four operands, separated by commas CEJECT A sequence symbol or space An absolute expression or space CNOP Any symbol or space Two absolute expressions, separated by a comma COM Any symbol or space Taken as a remark COPY A sequence symbol or space An ordinary symbol, or, for open code statements, a variable symbol CSECT Any symbol or space Taken as a remark CXD Any symbol or space Taken as a remark DC Any symbol or space One or more operands, separated by commas DROP A sequence symbol or space One or more absolute expressions and symbols, separated by commas, or space 402 © Copyright IBM Corp. 1982, 2004
Assembler Instructions and Statements Figure 110 (Page 2 of 5). Assembler Instructions Operation Entry Name Entry Operand Entry DS Any symbol or space One or more operands, separated by commas DSECT A symbol or space Taken as a remark DXD4,5 A symbol One or more operands, separated by commas EJECT A sequence symbol or space Taken as a remark END A sequence symbol or space A relocatable expression or space ENTRY A sequence symbol or space One or more relocatable symbols, separated by commas | EQU A variable symbol or an ordinary symbol One to five operands, separated by commas EXITCTL A sequence symbol or space A character-string operand followed by one to four decimal self-defining terms, separated by commas EXTRN A sequence symbol or space One or more relocatable symbols, separated by commas GBLA A sequence symbol or space One or more variable symbols that are to be used as SET symbols, separated by commas GBLB A sequence symbol or space One or more variable symbols that are to be used as SET symbols, separated by commas GBLC A sequence symbol or space One or more variable symbols that are to be used as SET symbols, separated by commas ICTL Space One to three decimal self-defining terms, separated by commas ISEQ A sequence symbol or space Two decimal self-defining terms, separated by a comma, or space LCLA A sequence symbol or space One or more variable symbols that are to be used as SET symbols, separated by commas LCLB A sequence symbol or space One or more variable symbols that are to be used as SET symbols, separated by commas LCLC A sequence symbol or space One or more variable symbols separated by commas LOCTR A variable or ordinary symbol Space LTORG Any symbol or space Taken as a remark MACRO2,5 Space Taken as a remark MEND2,5 A sequence symbol or space Taken as a remark MEXIT2,5 A sequence symbol or space Taken as a remark MHELP A sequence symbol or space Absolute expression, binary or decimal options Appendix A. Assembler Instructions 403
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High Level Assembler for MVS & VM &
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Note! Before using this information
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Contents Source Module . . . . . .
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Contents Ordinary USING Instruction
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Contents Sublists in Operands . . .
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About this Manual This manual descr
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IBM High Level Assembler for MVS &
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| The Internet. You can access IBM
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▌C▐ The item referred to by ▌
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Miscellany The ASCII translation t
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Part 1. Assembler Language—Struct
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Language Compatibility Language Com
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Assembler Program Assembler Program
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Relationship of Assembler to Operat
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Coding Made Easier Linkage between
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Character Set Compatibility with Ea
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Assembler Language Coding Conventio
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Assembler Language Structure Condit
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Assembler Language Structure Machin
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Assembler Language Structure Condit
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Terms, Literals, and Expressions Te
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Terms, Literals, and Expressions -
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Terms, Literals, and Expressions As
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Terms, Literals, and Expressions Se
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Terms, Literals, and Expressions Fo
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Terms, Literals, and Expressions I
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Terms, Literals, and Expressions Th
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Terms, Literals, and Expressions 1.
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Terms, Literals, and Expressions
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Terms, Literals, and Expressions
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Terms, Literals, and Expressions Th
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| Chapter 3. Program Structures and
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Source Module A source module is co
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The CSECT instruction can be used a
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| in linker control statements for
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This is not only convenient, but it
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| SECT_A CSECT , Define section SEC
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| For executable sections, the loca
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Addressing | The System/390® and z
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Addressing | Parts must always be r
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Addressing Literal Pools ALPHA LR 3
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Addressing If the symbol is the nam
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Addressing External Symbol Dictiona
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Addressing 74 HLASM V1R5 Language R
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Part 2. Machine and Assembler Instr
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General Instructions Chapter 4. Mac
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Input/Output Operations For further
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Branching with Extended Mnemonic Co
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Symbolic Operation Codes variations
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Operand Entries Registers You can s
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Operand Entries “Program Structur
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Operand Entries Format │ Coded or
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Examples of Coded Machine Instructi
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Chapter 5. Assembler Instruction St
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*PROCESS Statement *PROCESS Stateme
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ACONTROL Instruction ►►──
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ACONTROL Instruction FLAG(PAGE0) in
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AINSERT Instruction character_strin
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AMODE Instruction alias_string is t
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CATTR Instruction Figure 25. AMODE/
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CATTR Instruction | statements for
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CCW1 Instruction data_count is an a
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CEJECT Instruction If symbol is an
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CNOP Instruction Figure 29 (Page 2
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COPY Instruction In the following e
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CSECT Instruction symbol in the nam
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DC Instruction ROUTINE B GAMMA DXD
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DC Instruction duplication_factor c
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DC Instruction Figure 33 (Page 2 of
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DC Instruction With EBCDIC spaces
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DC Instruction Further information
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DC Instruction | Symbols used in su
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DC Instruction The length attribute
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DC Instruction Notes: 1. Don't conf
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DC Instruction—Character Constant
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DC Instruction—Character Constant
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DC Instruction—Graphic Constant r
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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 Constants
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DC Instruction—Address Constants
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DC Instruction—Address Constants
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DC Instruction—Offset Constant re
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DC Instruction—Length Constant Le
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DC Instruction—Hexadecimal Floati
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DC Instruction—Binary Floating-Po
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DC Instruction—Binary Floating-Po
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DROP Instruction DROP Instruction T
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DS Instruction USING DSECTA,14 ALBL
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DS Instruction The size of a storag
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DSECT Instruction DSECT Instruction
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DXD Instruction ASEMBLY2 CSECT USIN
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END Instruction change but no addit
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EQU Instruction EQU Instruction The
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EQU Instruction 5. The length attri
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EXITCTL Instruction sequence_symbol
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ISEQ Instruction must be greater th
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LOCTR Instruction A CSECT , See not
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LTORG Instruction If symbol is an o
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MNOTE Instruction When two literals
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OPSYN Instruction ,ERROR, SEV 1 An
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ORG Instruction AFTER is defined in
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ORG Instruction If you specify mult
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POP Instruction POP Instruction The
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PRINT Instruction Note: If the next
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Process Statement Process Statement
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REPRO Instruction NOPRINT instructs
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RSECT Instruction 4. AMODE or RMODE
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START Instruction START Instruction
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TITLE Instruction The name value is
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USING Instruction Only the characte
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USING Instruction Base Registers fo
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USING Instruction If register 0 is
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USING Instruction A variable symbo
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USING Instruction In this MVC instr
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USING Instruction Range of a Depend
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XATTR Instruction external_symbol i
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XATTR Instruction SCOPE ►►─
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XATTR Instruction 234 HLASM V1R5 La
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Part 3. Macro Language &SYSDATC Sys
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Introduction to Macro Language Chap
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Introduction to Macro Language The
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Introduction to Macro Language Macr
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MACRO and MEND Statements The assem
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Prototype Statement Macros that are
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Model Statements generated from tha
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Model Statements ▌5▐ ▌6▐
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Model Statements Notes: 1. You can
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Positional Parameters Symbolic para
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Processing Statements Processing St
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AREAD Instruction Assign Local Time
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COPY Instruction sequence_symbol is
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System Variable Symbols System Vari
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&SYSADATA_MEMBER System Variable Sy
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&SYSCLOCK System Variable Symbol &S
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&SYSECT System Variable Symbol depe
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&SYSIN_MEMBER System Variable Symbo
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&SYSJOB System Variable Symbol &SYS
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&SYSLIN_DSN System Variable Symbol
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&SYSLIST System Variable Symbol The
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&SYSLOC System Variable Symbol To
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&SYSM_SEV System Variable Symbol &S
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&SYSNDX System Variable Symbol The
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&SYSOPT_DBCS System Variable Symbol
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&SYSPARM System Variable Symbol Not
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&SYSPRINT_MEMBER System Variable Sy
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&SYSPUNCH_MEMBER System Variable Sy
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&SYSSTEP System Variable Symbol Not
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&SYSTERM_DSN System Variable Symbol
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&SYSTIME System Variable Symbol Not
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Macro Instruction Format sequence_s
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Macro Instruction Format Operand En
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Macro Instruction Format When you n
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Sublists in Operands the order in w
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Sublists in Operands &SYSLIST( n,m)
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Values in Operands Notes: 1. Spaces
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Values in Operands Parentheses In m
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Inner and Outer Macro Instructions
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Levels of Macro Call Nesting When t
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Levels of Macro Call Nesting System
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How to Write Conditional Assembly I
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SET Symbols SET Symbol Specificatio
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SET Symbols Figure 86 (Page 3 of 3)
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Data Attributes this example indica
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Data Attributes variable_symbol is
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Data Attributes The value of an att
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Data Attributes The following attri
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Data Attributes Assembler gives a t
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Data Attributes The scale attribute
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Data Attributes Number Attribute (N
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Data Attributes The operation code
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Lookahead MACRO &NAME MOVE &TO,&FRO
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Open Code Sequence Symbols The cond
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GBLA, GBLB, and GBLC Instructions G
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LCLA, LCLB, and LCLC Instructions s
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SETA Instruction expression is an a
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SETA Instruction | The logical-exp
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Page 378 and 379: SETA Instruction | X2A Name Operati
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Page 382 and 383: SETB Instruction Any expression tha
Page 384 and 385: SETB Instruction ┌─────
Page 386 and 387: SETB Instruction | ISDEC | Format:
Page 388 and 389: SETB Instruction The two comparands
Page 390 and 391: SETC Instruction Notes: 1. The asse
Page 392 and 393: Figure 103. Substring Notation in C
Page 394 and 395: Loc Object Code Addr1 Addr2 Stmt So
Page 396 and 397: | B2C('111111') has value '3' | B2C
Page 398 and 399: | Output: D2B('decstring') converts
Page 400 and 401: SIGNED Format: Logical-expression,
Page 402 and 403: | X2D('') has value '+' | X2D('91')
Page 404 and 405: Concatenation of strings containing
Page 406 and 407: MACRO &NAME MOVE &TO,&FROM LCLC &PR
Page 408 and 409: SETAF Instruction Alternative State
Page 410 and 411: Branching Branching You can control
Page 412 and 413: AGO Instruction The extended AIF in
Page 414 and 415: ACTR Instruction AGOB—Synonym of
Page 416 and 417: ANOP Instruction statement processe
Page 418 and 419: MHELP Instruction MHELP B'10000000'
Page 420 and 421: 400 HLASM V1R5 Language Reference
Page 424 and 425: Assembler Instructions and Statemen
Page 426 and 427: Assembler Instructions and Statemen
Page 428 and 429: Summary of Constants Figure 113. Su
Page 430 and 431: Macro and Conditional Assembly Lang
Page 442 and 443: Standard Character Set Code Table H
Page 444 and 445: Standard Character Set Code Table H
Page 446 and 447: Trademarks AIX BookMaster CICS DFSM
Page 448 and 449: Bibliography SMP/E Reference, SC28-
Page 450 and 451: Index A2C (SETC built-in function)
Page 452 and 453: Index B B-type binary constant 141
Page 454 and 455: Index conditional assembly instruct
Page 456 and 457: Index elements of conditional assem
Page 458 and 459: Index instructions (continued) asse
Page 460 and 461: Index machine instruction statement
Page 462 and 463: Index operands (continued) compatib
Page 464 and 465: Index relative addressing 67 reloca
Page 466 and 467: Index sublists compatibility with A
Page 468: Index variable symbols (continued)
Page 471 and 472: Readers' Comments High Level Assemb
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IBM® Program Number: 5696-234 Prin
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