HLASM Language Reference

EQU Instruction
5. The length attribute value described in cases 2, 3, and 4 above is the
assembly-time value of the attribute.
For more information about the length attribute value, see “Symbol Length
Attribute Reference” on page 38.
For example:
X DS CL8 X has length attribute 8
Y EQU X,4 Y has length attribute 4
expression_3
represents a value that the assembler assigns as a type attribute value to the
symbol in the name field. It is optional, but, if specified, it must be an absolute
value in the range 0 to 255.
All symbols appearing in expression_3 must have been previously defined, and
all expressions in expression_3 must be evaluatable when the EQU statement
is processed.
If expression_3 is omitted, the assembler assigns a type attribute value of U to
the symbol, which means the symbol in the name field has an undefined (or
unknown or unassigned) type attribute. See the general discussion about data
attributes on page 324, and “Type Attribute (T')” on page 328.
For example:
A DS D A has type attribute D
B EQU A,,C'X' B has type attribute X
| expression_4
| represents a value that the assembler assigns as a program type value to the
| symbol in the name field. It is optional. It can be specified as a decimal,
| character, hex or binary self-defining term and is stored as a 4-byte (32-bit)
| number; all four bytes are printed in the program listings opposite the symbol.
| The value is not used in any way by the assembler, and may be queried by
| using the SYSATTRP built-in function.
| All symbols appearing in expression_4 must have been previously defined, and
| all expressions in expression_4 must be evaluatable when the EQU statement
| is processed.
| If expression_4 is omitted, the assembler assigns a null to the program type,
| and querying the value using the SYSATTRP built-in function returns a null
| value.
| expression_5
| represents a character value from 1-4 bytes in length, that the assembler
| assigns as an assembler type value to the symbol in the name field. It is
| optional. It is stored as a 4-byte string; all four bytes are printed in the program
| listings opposite the symbol. The value is used by the assembler when
| type-checking has been activated, and may be queried by using the
| SYSATTRA built-in function.
| Valid values for this expression are:
186 HLASM V1R5 Language Reference