ASSEMBLY LANGUAGE PROBLEM

[A_Al_Shaybani]

CANT RUN THIS !!! error in export symbols ????? can any one check it  

; Include derivative-specific definitions

            INCLUDE 'derivative.inc'

; export symbols

            XDEF Entry, _Startup, main

            ; we use export 'Entry' as symbol. This allows us to

            ; reference 'Entry' either in the linker .prm file

            ; or from C/C++ later on

            XREF __SEG_END_SSTACK      ; symbol defined by the linker for the end of the stack

; variable/data section

MY_EXTENDED_RAM: SECTION

; Insert here your data definition.

Counter     ds.w 1

FiboRes     ds.w 1

; code section

TAA   EQU   $800

TBB   EQU   $801

       LDAA  #100

       STAA  TAA

BACK   LDAA  #10

       STAA  TBB

HERE   DEC   TBB

       BNE   HERE

       DEC   TAA

       BNE   BACK

       RTS          

[CrasyCat]

Hello

- Which CPU are you targeting (HC08, HC12, Coldfire, ..)
- Which version of CodeWarrior are you using?
   To retrieve that info:
     - Start CodeWarrior
     - Select Help -> About Freescale CodeWarrior
     - Click on "Install Products"
     - CodeWarrior version used is displayed on top in the Installed Products dialog.

CrasyCat

[A_Al_Shaybani]

I am using Dragon Board with HCS12 MC9S12DG256 with

CodeWarrior development studio for s12(x) version 5.0 build 9061

so what to do next ................... 

Message Edited by A.Al-Shaybani on 2009-10-21 02:31 PM

[CrasyCat · Accepted solution]

Hello

There are a couple of issues in the snippet you have provided.

In there you have a comment

; code section

This is not enough to define a code section for your application. You need to define a code section as follows:

MY_CODE: SECTION

Next you need to define a label for the beginning of the actual code.

For instance:

main:
       LDAA  #100
       STAA  TAA

Finally you have no labels Entry or _Startup in your code. So you need to remove those symbol names from the XDEF line

Once that is done you should be able to assemble the source file.

CrasyCat