HLASM: V1R6 Language Ref

Appendix B. Summary of constantsTable 65 and Table 66 on page 404 summarize the types of assembler constants.||||||||Table 65. Summary of constants (part 1 of 2)ConstantTypeImplicitLength(Bytes)AlignmentLength ModifierRange Specified ByAddress A 4 Fullword .1 to 4¹ Any expressionDoubleword Address AD 8 Doubleword .1 to 8¹ Any expressionBinary B As needed Byte .1 to 256 Binary digitsCharacter C As needed Byte .1 to 256² CharactersASCII Character CA As needed Byte .1 to 256² CharactersUnicode Character CU As needed Byte 2 to 256³ CharactersFloating Point Hex D 8 Doubleword .1 to 8 Decimal digitsFloating Point Hex DH 8 Doubleword .12 to 8 Decimal digitsFloating Point Binary DB 8 Doubleword .12 to 8 Decimal digitsFloating Point Decimal DB 8 Doubleword 8 Decimal digitsFloating Point Hex E 4 Fullword .1 to 8 Decimal digitsFloating Point Hex EH 4 Fullword .12 to 8 Decimal digitsFloating Point Binary EB 4 Fullword .9 to 8 Decimal digitsFloating Point Decimal ED 4 Fullword 4 Decimal digitsFixed Point F 4 Fullword .1 to 8 Decimal digitsDoubleword Fixed Point FD 8 Doubleword .1 to 8 Decimal digitsGraphic (DBCS) G As needed Byte 2 to 256³ DBCS charactersFixed Point H 2 Halfword .1 to 8 Decimal digitsLength J 4 Fullword 1 to 4 Class name or external DSECT name⁴Floating Point Hex L 16 Doubleword .1 to 16 Decimal digitsFloating Point Hex LH 16 Doubleword .12 to 16 Decimal digitsFloating Point Binary LB 16 Doubleword .16 to 16 Decimal digitsFloating Point Decimal LD 16 Doubleword 16 Decimal digitsFloating Point Hex LQ 16 Quadword .1 to 16 Decimal digitsDecimal P As needed Byte .1 to 16 Decimal digitsOffsetQQY⁴43FullwordHalfword1 to 43 onlyAddress R⁴ 4 Fullword 3, 4 SymbolAddressSSY23HalfwordHalfword2 only3 onlyAddress V 4 Fullword 3, 4 Relocatable symbolHexadecimal X As needed Byte .1 to 256² Hex digitsAddress Y 2 Halfword .1 to 2¹ Any expressionDecimal Z As needed Byte .1 to 16 Decimal digitsSymbol naming a DXD, DSECT or partOne absolute or relocatable expression, ortwo absolute expressions: exp(exp)© Copyright IBM Corp. 1982, 2008 403