HLASM Language Reference

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Macro and Conditional Assembly Language Summary Figure 120 (Page 3 of 5). System Variable Symbols System Variable Symbol Availability Type Type Attr. Scope Initialized or set to Value changed by May be used in &SYSM_HSEV HLA3 A N G 0 Mnote Arithmetic expressions &SYSM_SEV HLA3 A N G 0 At nesting and unnesting of macros, from MNOTE &SYSNDX All C N L Macro instruction index Constant throughout definition; unique for each macro instruction &SYSNEST HLA1 A N L Macro instruction nesting level &SYSOPT_DBCS HLA1 B N G DBCS assembler option indicator &SYSOPT_OPTABLE HLA3 C U G OPTABLE assembler option value &SYSOPT_RENT HLA1 B N G RENT assembler option indicator &SYSOPT_XOBJECT HLA3 B N G XOBJECT assembler option indicator Constant throughout definition; unique for each macro nesting level Constant throughout assembly Constant throughout assembly Constant throughout assembly Constant throughout assembly &SYSPARM All C U,O G User defined or null Constant throughout assembly &SYSPRINT_DSN HLA2 C U L Current assembler listing data set name &SYSPRINT_MEMBER HLA2 C U,O L Current assembler listing data set member name &SYSPRINT_VOLUME HLA2 C U,O L Current assembler listing data set volume identifier &SYSPUNCH_DSN HLA2 C U L Current object data set name Constant throughout assembly Constant throughout assembly Constant throughout assembly Constant throughout assembly Arithmetic expressions Arithmetic expressions Character expressions Arithmetic expressions Character expressions Arithmetic expressions Character expressions Logical expressions Character expressions Arithmetic expressions Character expressions Logical expressions Arithmetic expressions Character expressions Logical expressions Arithmetic expressions if value is self-defining term Character expressions Character expressions Character expressions Character expressions Character expressions 418 HLASM V1R5 Language Reference
Macro and Conditional Assembly Language Summary Figure 120 (Page 4 of 5). System Variable Symbols System Variable Symbol Availability Type Type Attr. Scope Initialized or set to &SYSPUNCH_MEMBER HLA2 C U,O L Current object data set member name &SYSPUNCH_VOLUME HLA2 C U,O L Current object data set volume identifier &SYSSEQF HLA1 C U,O L Outer-most macro instruction identification- sequence field &SYSSTEP HLA1 C U G Source module assembly job name Value changed by Constant throughout assembly Constant throughout assembly Constant throughout definition Constant throughout assembly &SYSSTMT HLA1 C,A N G Next statement number Assembler increments each time a statement is processed &SYSSTYP HLA1 C U,O L Type of control section in effect where macro instruction appears &SYSTEM_ID HLA1 C U G Assembly operating system environment identifier &SYSTERM_DSN HLA2 C U L Current terminal data set name &SYSTERM_MEMBER HLA2 C U,O L Current terminal data set member name &SYSTERM_VOLUME HLA2 C U,O L Current terminal data set volume identifier &SYSTIME AsmH C U G Source module assembly time Constant throughout definition; set by START, CSECT, RSECT, DSECT, or COM Constant throughout assembly Constant throughout assembly Constant throughout assembly Constant throughout assembly Constant throughout assembly May be used in Character expressions Character expressions Character expressions Character expressions Arithmetic expressions Character expressions Character expressions Character expressions Character expressions Character expressions Character expressions Character expressions Appendix C. Macro and Conditional Assembly Language Summary 419
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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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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 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 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
Page 474: IBM® Program Number: 5696-234 Prin
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