HLASM: V1R6 Language Ref

Substring notationX2C(’’) has value ’’ (null string)X2C(’F3’) has value ’3’X2C(’0’) has value ’n’ (EBCDIC null character)X2C(’F1F2F3F4F5’) has value ’12345’X2C(’000F1’) has value ’nn1’X2D Format: Function-invocationOperands: CharacterOutput: X2D(’hexstring’) converts its argument string of at most eighthexadecimal characters to one to ten decimal characters preceded by a plusor minus sign, representing the value of the argument. Null argumentsreturn ’+0’. For example:X2D(’’) has value ’+0’X2D(’91’) has value ’+145’X2D(’000F1’) has value ’+241’X2D(’7FFFFFFF’) has value ’+2147483647’X2D(’FFFFFFF1’) has value ’-15’┌───────────┐│││Character ││Expression │││└─────┬─────┘│ Can be any of├─────────────┬─────────────┬──────────────────────┐ ┌─────┴─────┐ ┌─────┴──────┐ ┌────┴──────────────┐ ┌─────┴────────┬────────────┐│ │ │ │ │ │ │ │ ││ Character │ │ CharExpr │ │ Character-Valued │ │ (Duplication │ CharExpr ││ Value │ │ . ◄──┐ │ │ Built-In Function │ │ Factor) │ ││ │ │ CharExpr │ │ │ │ │ │ │└─────┬─────┘ └──────────┼─┘ └───────────────────┘ └──────────────┴────────────┘│││ └── Period (.) = Concatenation Character Can be any of├─────────────┬─────────────┬─────────────┐ ┌─────┴─────┐ ┌─────┴─────┐ ┌─────┴─────┐ ┌─────┴─────┐│ Substring │ │ Variable │ │ Self- │ │ Attribute¹││ │ │ Symbol │ │ Defining │ │ Reference ││ │ │ │ │ Term │ │ ││ │ │ │ │ │ │ T’ or O’ │└───────────┘ └───────────┘ └───────────┘ └───────────┘Figure 45. Defining character (SETC) expressionsNotes:1. The attribute reference term must not be preceded by a duplication factor.Evaluation of character expressions: The value of a character expression is thecharacter string within the enclosing single quotation marks, after the assemblercarries out any substitution for variable symbols.Character strings, including variable symbols, can be concatenated to each otherwithin a character expression. The resultant string is the value of the expression.Notes:1. Use two single quotation marks to generate a single quotation mark as part ofthe value of a character expression.376 HLASM: V1R6 Language Ref