Table 63 summarizes the basic formats of assembler instructions, and Table 64 summarizes assembler statements.
| Operation Entry | Name Entry | Operand Entry |
|---|---|---|
| ACONTROL5 | A sequence symbol or space | One or more operands, separated by commas |
| ACTR | A sequence symbol or space | An arithmetic SETA expression |
| ADATA5 | A sequence symbol or space | One-to-four decimal, self-defining terms, and one character string, separated by commas. |
| AEJECT2 | 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 |
| AINSERT5 | A sequence symbol or space | A character string, followed by FRONT or BACK |
| AMODE | Any symbol or space | 24, 31, 64, ANY or ANY31 |
| ALIAS5 | A symbol | A character string or a hexadecimal string |
| ANOP | A sequence symbol or space | Taken as a remark |
| AREAD2 | Any SETC symbol | NOPRINT, NOSTMT, CLOCKB, CLOCKD, or spaces |
| ASPACE | A sequence symbol or space | An absolute expression |
| CATTR (z/OS and CMS) | A valid program object external class name | One or more attributes |
| CCW4 | Any symbol or space | Four operands, separated by commas |
| CCW04 | Any symbol or space | Four operands, separated by commas |
| CCW14 | Any symbol or space | Four operands, separated by commas |
| CEJECT5 | A sequence symbol or space | An absolute expression or space |
| CNOP4 | Any symbol or space | Two absolute expressions, separated by a comma |
| COM | Any symbol or space | Taken as a remark |
| COPY5 | 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 |
| CXD4 | Any symbol or space | Taken as a remark |
| DC4 | 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 |
| DS4 | 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 |
| EJECT5 | A sequence symbol or space | Taken as a remark |
| END | A sequence symbol or space | A relocatable expression or space |
| ENTRY5 | A sequence symbol or space | One or more relocatable symbols, separated by commas |
| EQU4 | A variable symbol or an ordinary symbol | One to five operands, separated by commas |
| EXITCTL5 | A sequence symbol or space | A character-string operand followed by one to four decimal self-defining terms, separated by commas |
| EXTRN5 | 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 commas1 |
| GBLB | A sequence symbol or space | One or more variable symbols that are to be used as SET symbols, separated by commas1 |
| GBLC | A sequence symbol or space | One or more variable symbols that are to be used as SET symbols, separated by commas1 |
| ICTL | Space | One to three decimal self-defining terms, separated by commas |
| ISEQ5 | 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 commas1 |
| LCLB | A sequence symbol or space | One or more variable symbols that are to be used as SET symbols, separated by commas1 |
| LCLC | A sequence symbol or space | One or more variable symbols separated by commas1 |
| 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 |
| MNOTE | A sequence symbol or space | A severity code, followed by a comma, followed by a character string enclosed in single quotation marks. Double-byte characters are permitted if the DBCS assembler option is specified. |
| OPSYN |
An ordinary symbol An operation code mnemonic |
A machine instruction mnemonic or an operation code defined by a previous macro definition or OPSYN instruction Space |
| ORG | A sequence symbol or space | A relocatable expression or space |
| POP5 | A sequence symbol or space | One or more operands, separated by commas |
| PRINT5 | A sequence symbol or space | One or more operands, separated by commas |
| PUNCH5 | A sequence symbol or space | A 1-to-80-character string enclosed in single quotation marks. Double-byte characters are permitted if the DBCS assembler option is specified. |
| PUSH5 | A sequence symbol or space | One or more operands, separated by commas |
| REPRO5 | A sequence symbol or space | Taken as a remark |
| RMODE | Any symbol or space | 24, 31, 64 or ANY |
| RSECT | Any symbol or space | Taken as a remark |
| SETA | A SETA symbol | An arithmetic expression |
| SETAF | A SETA symbol | An external function module, and the arithmetic expressions it requires, separated by commas |
| SETB | A SETB symbol | A 0 or a 1, or a logical expression enclosed in parentheses |
| SETC | A SETC symbol | A type attribute, a character expression, a substring notation, or a concatenation of character expressions and substring notations. Double-byte characters are permitted if the DBCS assembler option is specified. |
| SETCF | A SETC symbol | An external function module, and the character expressions it requires, separated by commas |
| SPACE5 | A sequence symbol or space | An absolute expression |
| START | Any symbol or space | An absolute expression or space |
| TITLE3,5 | A 1-to-8-character string, a variable symbol, a combination of character string or variable symbol, a sequence symbol, or space | A 1-to-100-character string enclosed in single quotation marks. Double-byte characters are permitted if the DBCS assembler option is specified. |
| USING | A symbol or space | Either a single absolute or relocatable expression or a pair of absolute or relocatable expressions enclosed in parentheses and followed by 1 to 16 absolute expressions, separated by commas, or followed by a relocatable expression |
| WXTRN5 | A sequence symbol or space | One or more relocatable symbols, separated by commas |
| XATTR5 (z/OS and CMS) | An external symbol | One or more operands, separated by commas |
|
Notes:
|
||
| Instruction Entry | Name Entry | Operand Entry |
|---|---|---|
| Model
Statements1 and 2 |
An ordinary symbol, variable symbol, sequence symbol, or a combination of variable symbols and other characters that is equivalent to a symbol, or space | Any combination of characters (including variable symbols) |
| Prototype Statement3 | A symbolic parameter or space | Zero or more operands that are symbolic parameters (separated by commas), and zero or more operands (separated by commas) of the form symbolic parameter, equal sign, optional standard value |
| Macro Instruction Statement3 | An ordinary symbol, a variable symbol, or a combination of variable symbols and other characters that is equivalent to a symbol, any character string, a sequence symbol4 or space | Zero or more positional operands (separated by commas), and zero or more keyword operands (separated by commas) of the form keyword, equal sign, value5 |
| Assembler Language Statement12 | An ordinary symbol, a variable symbol, a sequence symbol, or a combination of variable symbols and other characters that is equivalent to a symbol, or space | Any combination of characters (including variable symbols) |
|
Notes:
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