HLASM Language Reference

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Part 2. Machine and Assembler Instruction Statements General Information About Constants . . . . . . . . . . . . . . . . . . . . . . . 129 Length Attribute Value of Symbols Naming Constants . . . . . . . . . . . . 129 Alignment of Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129 Padding and Truncation of Values . . . . . . . . . . . . . . . . . . . . . . . . . 130 Padding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 Truncation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 Subfield 1: Duplication Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 Subfield 2: Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 Subfield 3: Type Extension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 Subfield 4: Program type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 Subfield 5: Modifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 Length Modifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 Scale Modifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 138 Exponent Modifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139 Subfield 6: Nominal Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140 Binary Constant—B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Character Constant—C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 142 Graphic Constant—G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145 Hexadecimal Constant—X . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147 Fixed-Point Constants—F and H . . . . . . . . . . . . . . . . . . . . . . . . 148 Decimal Constants—P and Z . . . . . . . . . . . . . . . . . . . . . . . . . . 151 Address Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 153 Offset Constant—Q . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159 Length Constant—J . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 PSECT Reference—R . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 Hexadecimal Floating-Point Constants—E, EH, D, DH, L, LH, LQ . . . . . 161 Binary Floating-Point Constants—EB, DB, LB . . . . . . . . . . . . . . . . 167 Floating-Point Special Values . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Literal Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171 DROP Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 DS Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174 How to Use the DS Instruction . . . . . . . . . . . . . . . . . . . . . . . . . 176 DSECT Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 DXD Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 EJECT Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181 END Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182 ENTRY Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183 EQU Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 184 Using Conditional Assembly Values . . . . . . . . . . . . . . . . . . . . . . . . 187 EXITCTL Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187 EXTRN Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189 ICTL Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189 ISEQ Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190 LOCTR Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 LTORG Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193 Literal Pool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 194 Addressing Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 Duplicate Literals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 MNOTE Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196 OPSYN Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198 Redefining Conditional Assembly Instructions . . . . . . . . . . . . . . . . . 200 ORG Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 POP Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 PRINT Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 204 76 HLASM V1R5 Language Reference
Part 2. Machine and Assembler Instruction Statements Process Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 PUNCH Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 PUSH Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 209 REPRO Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210 RMODE Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211 RSECT Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212 SPACE Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213 START Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214 TITLE Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 Deck ID in Object Records . . . . . . . . . . . . . . . . . . . . . . . . . . . 215 Printing the Heading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 Printing the TITLE Statement . . . . . . . . . . . . . . . . . . . . . . . . . . 216 Sample Program Using the TITLE Instruction . . . . . . . . . . . . . . . . . 216 Page Ejects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217 Valid Characters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217 USING Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218 How to Use the USING Instruction . . . . . . . . . . . . . . . . . . . . . . . . 219 Base Registers for Absolute Addresses . . . . . . . . . . . . . . . . . . . . . . 220 Ordinary USING Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220 Range of an Ordinary USING Instruction . . . . . . . . . . . . . . . . . . . 222 Domain of an Ordinary USING Instruction . . . . . . . . . . . . . . . . . . . 223 Labeled USING Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223 Range of a Labeled USING Instruction . . . . . . . . . . . . . . . . . . . . 225 Domain of a Labeled USING Instruction . . . . . . . . . . . . . . . . . . . . 226 Dependent USING Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . 226 Range of a Dependent USING Instruction . . . . . . . . . . . . . . . . . . . 228 Domain of a Dependent USING Instruction . . . . . . . . . . . . . . . . . . 228 WXTRN Instruction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229 XATTR Instruction (MVS and CMS) . . . . . . . . . . . . . . . . . . . . . . . . . 230 | Association of Code and Data Areas (MVS and CMS) . . . . . . . . . . . . . 232 Part 2. Machine and Assembler Instruction Statements 77
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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
Page 46 and 47: Assembler Language Structure Condit
Page 48 and 49: Terms, Literals, and Expressions Te
Page 50 and 51: Terms, Literals, and Expressions -
Page 52 and 53: Terms, Literals, and Expressions As
Page 54 and 55: Terms, Literals, and Expressions Se
Page 56 and 57: Terms, Literals, and Expressions Fo
Page 58 and 59: Terms, Literals, and Expressions I
Page 60 and 61: Terms, Literals, and Expressions Th
Page 62 and 63: Terms, Literals, and Expressions 1.
Page 64 and 65: Terms, Literals, and Expressions
Page 66 and 67: Terms, Literals, and Expressions
Page 68 and 69: Terms, Literals, and Expressions Th
Page 70 and 71: | Chapter 3. Program Structures and
Page 72 and 73: Source Module A source module is co
Page 74 and 75: The CSECT instruction can be used a
Page 76 and 77: | in linker control statements for
Page 78 and 79: This is not only convenient, but it
Page 80 and 81: | SECT_A CSECT , Define section SEC
Page 82 and 83: | For executable sections, the loca
Page 84 and 85: Addressing | The System/390® and z
Page 86 and 87: Addressing | Parts must always be r
Page 88 and 89: Addressing Literal Pools ALPHA LR 3
Page 90 and 91: Addressing If the symbol is the nam
Page 92 and 93: Addressing External Symbol Dictiona
Page 94 and 95: Addressing 74 HLASM V1R5 Language R
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 132 and 133: CATTR Instruction Figure 25. AMODE/
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
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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
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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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