Motorola HC12 - Manual (Page 286)

User’s Manual MCUez HC12 Assembler
286 Assembler Messages MOTOROLA
Assembler Messages
12.3.46 A12002: Complex Relocatable Expression not Supported
Type: Error
Description: A complex relocatable expression has been detected. The
expression is detected when it contains:
• An operation between labels located in two different sections
• A multiplication, division, or modulo operation between two
labels
• The addition of two labels located in the same section
Example:
DataSec1: SECTION
DataLbl1: DS.B 10
DataSec2: SECTION
DataLbl2: DS.W 15
offset: EQU DataLbl2 – DataLbl1
Tip: The macro assembler does not support complex relocatable
expressions. The corresponding expression must be evaluated
at execution time.
Example:
DataSec1: SECTION
DataLbl1: DS.B 10
DataSec2: SECTION
DataLbl2: DS.W 15
Offset: DS.W 1
…
CodeSec: SECTION
…
evalOffset:
LDD #DataLbl2
SUBD #DataLbl1
STD Offset