HLASM Language Reference

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Trademarks AIX BookMaster CICS DFSMS DFSMS/MVS DFSMSdfp Enterprise Systems Architecture/370 Enterprise Systems Architecture/390 IBM Language Environment MVS MVS/DFP MVS/ESA OS/390 SP System/370 System/390 VM/ESA VSE/ESA z/OS Linux is a trademark of Linus Torvalds in the United States, other countries, or both. UNIX is a registered trademark of The Open Group in the United States and other countries. Microsoft and Windows are trademarks of Microsoft Corporation in the United States, other countries, or both. Other company, product, and service names may be trademarks or service marks of others. 426 HLASM V1R5 Language Reference
Bibliography Bibliography High Level Assembler Publications HLASM General Information, GC26-4943 HLASM Installation and Customization Guide, SC26-3494 HLASM Language Reference, SC26-4940 HLASM Licensed Program Specifications, GC26-4944 HLASM Programmer's Guide, SC26-4941 Toolkit Feature Publications HLASM Toolkit Feature User's Guide, GC26-8710 HLASM Toolkit Feature Debug Reference Summary, GC26-8712 HLASM Toolkit Feature Interactive Debug Facility User's Guide, GC26-8709 HLASM Toolkit Feature Installation and Customization Guide, GC26-8711 Related Publications (Architecture) Enterprise Systems Architecture/390 Principles of Operation, SA22-7201 System/370 Enterprise Systems Architecture Principles of Operation, SA22-7200 System/370 Principles of Operation, GA22-7000 System/370 Extended Architecture Principles of Operation, SA22-7085 | z/Architecture Principles of Operation, SA22-7832 Related Publications for MVS | z/OS: | z/OS MVS JCL Reference, SA22-7597 | z/OS MVS JCL User's Guide, SA22-7598 | z/OS MVS Programming: Assembler Services | Guide, SA22-7605 | z/OS MVS Programming: Assembler Services | Reference, Volumes 1 and 2, SA22-7606, | SA22-7607 | z/OS MVS Programming: Authorized Assembler | Services Guide, SA22-7608 | z/OS MVS Programming: Authorized Assembler | Services Reference, Volumes 1 - 4, SA22-7609 - | SA22-7612 | z/OS MVS Program Management: User's Guide and | Reference, SA22-7643 | z/OS MVS System Codes, SA22-7626 | z/OS MVS System Commands, SA22-7627 | z/OS MVS System Messages, Volumes 1 - 10, | SA22-7631 - SA22-7640 OS/390: OS/390 MVS JCL Reference, GC28-1757 OS/390 MVS JCL User's Guide, GC28-1758 OS/390 MVS Programming: Assembler Services Reference, GC28-1910 OS/390 MVS System Codes, GC28-1780 OS/390 MVS System Commands, GC28-1781 OS/390 MVS System Messages, Volumes 1 - 5, GC28-1784 - GC27-1788 OpenEdition: MVS/ESA OpenEdition MVS User's Guide, SC23-3013 z/OS UNIX System Services User's Guide, SA22-7801 MVS/DFP: MVS/DFP Version 3.3: Utilities, SC26-4559 MVS/DFP Version 3.3: Linkage Editor and Loader, SC26-4564 DFSMS/MVS®: | z/OS DFSMS Program Management, SC27-1130 | z/OS DFSMSdfp Utilities, SC26-7414 TSO/E (z/OS): | z/OS TSO/E Command Reference, SA22-7782 TSO/E (OS/390): OS/390 TSO/E Command Reference, SC28-1869 SMP/E (z/OS): SMP/E Messages, Codes and Diagnosis, GA22-7770 SMP/E Reference, SA22-7772 SMP/E User's Guide, SA22-7773 SMP/E (OS/390): SMP/E Messages and Codes, SC28-1738 © Copyright IBM Corp. 1982, 2004 427
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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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SETA Instruction | Figure 99 (Page
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SETA Instruction | The result of C2
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SETA Instruction NOT Format: Logica
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SETA Instruction | X2A Name Operati
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SETA Instruction In evaluating the
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SETB Instruction Any expression tha
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SETB Instruction ┌─────
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SETB Instruction | ISDEC | Format:
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SETB Instruction The two comparands
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SETC Instruction Notes: 1. The asse
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Figure 103. Substring Notation in C
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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 422 and 423: 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 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
Page 474: IBM® Program Number: 5696-234 Prin
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