Motorola HC12 - Manual (Page 213)

Assembler Listing File
Source Listing
MCUez HC12 Assembler User’s Manual
MOTOROLA Assembler Listing File 213
10.4.3 Location (Loc.) Listing
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. Loc. 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.