Motorola HC12 User Manual

Assembler Directives

EQU — Equate Symbol Value

MCUez HC12 Assembler

User’s Manual

MOTOROLA

Assembler Directives

177

Syntax:

<label>:

EQU

 <expression>

Description:

The

EQU

directive assigns the value of the <expression> in the

operand field to <label>. The <label> and <expression> fields
are both required, and the <label> cannot be defined anywhere
else in the program. The <expression> cannot include a symbol
that is undefined or not yet defined.

The

EQU

 directive does not allow forward references.

Example:

        0000 0014  MaxElement: EQU  20

        0000 0050  MaxSize:    EQU  MaxElement * 4

 000000            Time:   DS.W 3

        0000 0000  Hour:   EQU Time  ; first word addr

        0000 0002  Minute: EQU Time+2; second word addr

        0000 0004  Second: EQU Time+4; third word addr