HLASM Language Reference

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CATTR Instruction Figure 25. AMODE/RMODE Combinations RMODE 24 RMODE 31 RMODE 64 AMODE 24 OK invalid invalid AMODE 31 OK OK invalid AMODE ANY|ANY31 OK OK invalid | AMODE 64|ANY64 OK OK OK 5. AMODE or RMODE cannot be specified for an unnamed common control section. 6. The defaults used when zero or one MODE is specified are shown in the following table. Note that combinations involving AMODE 64 and RMODE 64 are subject to the support outlined in “64-bit Addressing Mode” on page 101. Figure 26. AMODE/RMODE Defaults Specified Default Neither AMODE 24, RMODE 24 AMODE 24 RMODE 24 AMODE 31 RMODE 24 AMODE ANY|ANY31 RMODE 24 RMODE 24 AMODE 24 RMODE 31 (was ANY) AMODE 31 AMODE 64 RMODE 31 | AMODE ANY64 RMODE 31 RMODE 64 AMODE 64 CATTR Instruction (MVS and CMS) The CATTR instruction establishes a program object external class name, and assigns binder attributes for the class. This instruction is valid only when you specify the GOFF or XOBJECT assembler option. ┌─,─────────┐ ►►──class_name──CATTR─── ▼ ─attribute─┴───────────────────────────────►◄ class_name is a valid program object external class name. The class name must follow the rules for naming external symbols, except that: Class names are restricted to a maximum of 16 characters Class names with an underscore (_) in the second character are reserved for IBM use; for example B_TEXT. If you use a class name of this format, it might conflict with an IBM-defined binder class. attribute is one or more binder attributes that are assigned to the text in this class: 112 HLASM V1R5 Language Reference
CATTR Instruction ALIGN(n) Aligns the text on a 2 n boundary. n is an integer in the range from 0 to 12, | inclusive. If not specified, then the SECTALGN value (8 is the default) is | used. | Note: Execution time support of the desired alignment depends on its | being respected by other operating system components such as linkers and | loaders. EXECUTABLE The text can be branched to or executed—it is instructions, not data. DEFLOAD The text is not loaded when the program object is brought into storage, but will probably be requested, and therefore should be partially loaded, for fast access. MERGE The text has the merge binding property. For example, pseudo-registers or external dummy sections have the “merge” binding property. Merge classes can contain initial text. If they do contain initial text, they must have a class name beginning with C_. MOVABLE The text can be moved, and is reenterable (that is, it is free of location-dependent data such as address constants, and executes normally if moved to a properly aligned boundary). NOLOAD The text for this class is not loaded when the program object is brought into storage. An external dummy section is an example of a class which is defined in the source program but not loaded. NOTEXECUTABLE The text cannot be branched to or executed (that is, it is data, not instructions). NOTREUS The text is marked not reusable. | PART(part-name) | Identifies or continues the part with the name part-name. The part-name | can be up to 63 characters in length. An invalid part-name is ignored and | diagnostic message 'ASMA062E Illegal operand format xxxxxx' is issued. | Binding attributes assigned to the class are also assigned to the part. Both | the class and the part are assigned to Name Space 3 and are assigned the | merge attribute. | Text within a part cannot contain an entry point. If an entry point is found | within the part it is ignored and diagnostic message 'ASMA048E Entry error | - xxxxxxx' is issued. | The following rules apply to the validation of the PART attribute on the | CATTR instruction: | If the PART attribute has not been specified on the first CATTR | statement for the class, but is specified on subsequent CATTR Chapter 5. Assembler Instruction Statements 113
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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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Page 86 and 87: Addressing | Parts must always be r
Page 88 and 89: Addressing Literal Pools ALPHA LR 3
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Page 92 and 93: Addressing External Symbol Dictiona
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Page 96 and 97: Part 2. Machine and Assembler Instr
Page 98 and 99: General Instructions Chapter 4. Mac
Page 100 and 101: Input/Output Operations For further
Page 102 and 103: Branching with Extended Mnemonic Co
Page 104 and 105: Symbolic Operation Codes variations
Page 106 and 107: Operand Entries Registers You can s
Page 108 and 109: Operand Entries “Program Structur
Page 110 and 111: Operand Entries Format │ Coded or
Page 112 and 113: Examples of Coded Machine Instructi
Page 120 and 121: Chapter 5. Assembler Instruction St
Page 122 and 123: *PROCESS Statement *PROCESS Stateme
Page 124 and 125: ACONTROL Instruction ►►──
Page 126 and 127: ACONTROL Instruction FLAG(PAGE0) in
Page 128 and 129: AINSERT Instruction character_strin
Page 130 and 131: AMODE Instruction alias_string is t
Page 134 and 135: CATTR Instruction | statements for
Page 136 and 137: CCW1 Instruction data_count is an a
Page 138 and 139: CEJECT Instruction If symbol is an
Page 140 and 141: CNOP Instruction Figure 29 (Page 2
Page 142 and 143: COPY Instruction In the following e
Page 144 and 145: CSECT Instruction symbol in the nam
Page 146 and 147: DC Instruction ROUTINE B GAMMA DXD
Page 148 and 149: DC Instruction duplication_factor c
Page 150 and 151: DC Instruction Figure 33 (Page 2 of
Page 152 and 153: DC Instruction With EBCDIC spaces
Page 154 and 155: DC Instruction Further information
Page 156 and 157: DC Instruction | Symbols used in su
Page 158 and 159: DC Instruction The length attribute
Page 160 and 161: DC Instruction Notes: 1. Don't conf
Page 162 and 163: DC Instruction—Character Constant
Page 164 and 165: DC Instruction—Character Constant
Page 166 and 167: DC Instruction—Graphic Constant r
Page 168 and 169: DC Instruction—Fixed-Point Consta
Page 170 and 171: DC Instruction—Fixed-Point Consta
Page 172 and 173: DC Instruction—Decimal Constants
Page 174 and 175: DC Instruction—Address Constants
Page 176 and 177: DC Instruction—Address Constants
Page 178 and 179: DC Instruction—Offset Constant re
Page 180 and 181: 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
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| B2C('111111') has value '3' | B2C
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| Output: D2B('decstring') converts
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SIGNED Format: Logical-expression,
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| X2D('') has value '+' | X2D('91')
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Concatenation of strings containing
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MACRO &NAME MOVE &TO,&FROM LCLC &PR
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SETAF Instruction Alternative State
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Branching Branching You can control
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AGO Instruction The extended AIF in
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ACTR Instruction AGOB—Synonym of
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ANOP Instruction statement processe
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MHELP Instruction MHELP B'10000000'
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400 HLASM V1R5 Language Reference
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Assembler Instructions and Statemen
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Summary of Constants Figure 113. Su
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Macro and Conditional Assembly Lang
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Standard Character Set Code Table H
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Standard Character Set Code Table H
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Trademarks AIX BookMaster CICS DFSM
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Bibliography SMP/E Reference, SC28-
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Index A2C (SETC built-in function)
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Index B B-type binary constant 141
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Index conditional assembly instruct
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Index elements of conditional assem
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Index instructions (continued) asse
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Index machine instruction statement
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Index operands (continued) compatib
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Index relative addressing 67 reloca
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Index sublists compatibility with A
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Index variable symbols (continued)
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Readers' Comments High Level Assemb
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IBM® Program Number: 5696-234 Prin
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