Motorola HC12 Manuale Utente

Assembler Listing File

Source Listing

MCUez HC12 Assembler

User’s Manual

MOTOROLA

Assembler Listing File

213

This column contains the address of the instruction. For absolute sections, the
address is preceded by the letter

a

 and contains the absolute address of the

instruction. For relocatable sections, this address is the offset of the instruction
from the beginning of the relocatable section. This address is a hexadecimal
number coded on six digits.

A value is written in this column in front of each instruction generating code or
allocating storage. This column is empty in front of each instruction that does
not generate code (for example,

 SECTION, XDEF,

 …).

Example:

Abs. Rel.

Obj. code  Source line

---- ----

------ ---------  -----------

1

1

;--------------------

2

2

; File: test.o

3

3

;--------------------

4

4

5

5                        INCLUDE "macro.inc"

6

1i                     cpChar: MACRO

7

2i                           LDD \1

8

3i                           STD \2

9

4i                         ENDM

10

5i

11

6                      codeSec: SECTION

12

7                      Start:

13

8                          cpChar ch1, ch2

14

2m

000000 FC xxxx    +      LDD ch1

15

3m

000003 7C xxxx    +      STD ch2

16

9

000006 A7              NOP

17

10

000007 A7              NOP

In the previous example, the hexadecimal number displayed in the column Loc.
is the offset of each instruction in the section

codeSec

. There is no location

counter specified in front of the instruction

INCLUDE "macro.inc

because

this instruction does not generate code. The instruction

LDD ch1

is located at

offset 0 from the

codeSec

 section start address. The instruction

STD ch2

 is located at offset 3 from the

codeSec

 section start address.