Motorola HC12 User Manual

User’s Manual

MCUez HC12 Assembler

304

Assembler Messages

MOTOROLA

Type:

Error

Description:

The offset between the current PC and label specified as the PC
relative address is not in the range of a signed word (smaller
than –32,768 or bigger than 32,767).

A 16-bit signed PC relative offset is expected in these
instructions:

• Long-branch instructions:

LBCC, LBCS, LBEQ, LBGE, LBGT, LBHI, LBHS, LBLE,
LBLO, LBLS, LBLT, LBMI, LBNE, LBPL, LBRA, LBRN,
LBVC, LBVS.

Example:

DataSec: SECTION

var1:    DS.W 1

var2:    DS.W 2

CodeSec: SECTION

         …

         LDD  var1

         LBNE label

dummyBl: DCB.B 20000, $A7

         DCB.B 20000, $A7

label    STD var2

Tip:

Replace the long-branch instruction with this code sequence:

<Inverse branch instruction> label1

        JMP  label

label1:

Example:

DataSec: SECTION

var1:    DS.W 1

var2:    DS.W 2

CodeSec: SECTION

         …

         LDD  var1

         BEQ  label1

         JMP  label

label1:

dummyBl: DCB.B 20000, $A7

         DCB.B 20000, $A7

label    STD var2