HLASM Language Reference

SETA Instruction
of a variable symbol (see ▌3▐ in Figure 100), and any insignificant leading zeros
are removed.
Here are the built-in functions for arithmetic (SETA) expressions:
AND
| B2A
Format: Logical-expression
Operands: Arithmetic
Output: (aexpr1 AND aexpr2) provides an arithmetic result where each bit
position in the result is set to 1 if the corresponding bit positions in both
operands contain 1, otherwise, the result bit is set to 0.
Example
After the following statements &VAR contains the arithmetic value +2.
Name Operation Operand
&OP1 SETA 1
&OP2 SETA 2
&VAR SETA (&OP1 AND &OP2)
| Format: Function-invocation
| Operands: Character
| Output: B2A('bitstring') converts a character string argument containing
| '' and '1' characters to an arithmetic value.
| Fewer than 32 characters are padded internally on the left with ''
| characters to a length of 32 characters.
| Error conditions are detected if the argument contains invalid characters,
| or if the argument length exceeds 32 characters, generating the message
| ASMA214E.
| Null argument strings return zero.
| The result of the B2A function is the same as
| &value SETA B'bitstring'
| except that null strings are allowed by B2A but not by SETA.
| Examples
| B2A('') has value
| B2A('11') has value 5
| B2A('1111111111111111111111111111111') has value -2
| C2A
| Format: Function-invocation
| Operands: Character
| Output: C2A('charstring') converts a character string of zero to four
| characters to a binary arithmetic value having the same bit pattern.
| Fewer than four characters are padded internally on the left with EBCDIC
| null characters to a length of four characters.
| An error condition is detected if the argument length exceeds 4
| characters, generating the message ASMA214E.
| Null argument strings return zero.
Chapter 9. How to Write Conditional Assembly Instructions 353