Motorola HC12 User Manual

Assembler Directives

SET — Set Symbol Value

MCUez HC12 Assembler

User’s Manual

MOTOROLA

Assembler Directives

199

Syntax:

<label>:

SET

 <expression>

Description:

Similar to the

EQU

 directive, the

SET

 directive assigns the

value of the <expression> in the operand field to the symbol in
the <label> field. The <expression> cannot include a symbol
that is undefined or not yet defined. The <label> is an assembly
time constant;

SET

 does not generate machine code.

The value is temporary; a subsequent

SET

 directive can

redefine it.

Example:

2    2          0000 0002   count: SET 2

3    3   000000 02          loop:  DC.B count

4    4          0000 0002          IFNE count

5    5          0000 0001   count: SET count - 1

6    6                             ENDIF

7    7   000001 01                 DC.B count

8    8          0000 0001          IFNE count

9    9          0000 0000   count: SET count - 1

10   10

ENDIF

11   11   000002 00

DC.B count

12   12          0000 0000

IFNE count

The value associated with the label count is decremented after
each

DC.B

 instruction.