SET - Set Symbol Value

Syntax

  <label>: SET <expression>

Synonym

None

Description

Similar to the EQU - Equate symbol value directive, the SET directive assigns the value of the <expression> in the operand field to the symbol in the <label> field. The <expression> must resolve as an absolute expression and cannot include a symbol that is undefined or not yet defined. The <label> is an assembly time constant. SET does not generate any machine code.

The value is temporary; a subsequent SET directive can redefine it.

Example

See the following listing for examples of the SET directive.

Listing: Using the SET assembler directive


 Abs. Rel.   Loc    Obj. code   Source line
 ---- ----   ------ ---------   -----------

    1    1          0000 0002   count:  SET   2

    2    2   000000 02          one:    DC.B  count

    3    3

    4    4          0000 0001   count:  SET   count-1

    5    5   000001 01                  DC.B  count

    6    6

    7    7          0000 0001           IFNE  count

    8    8          0000 0000   count:  SET   count-1

    9    9                              ENDIF

   10   10   000002 00                  DC.B  count

The value associated with the label count is decremented after each DC.B instruction.