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Include C assembly and machine code in a listing file

 
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BarberColman



Joined: 24 Nov 2008
Posts: 2

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Include C assembly and machine code in a listing file
PostPosted: Thu Oct 15, 2009 11:54 am     Reply with quote
I am picking up a older project that used a CCS compiler and a PIC micro. The timing on the interrupts is so critical that the original writer had to count cycles every time the code changed. I have had to make a small change the the main loop and want to verify that the interrupt timing has not changed. I also do not want to count cycles.

I added one case to a switch statement. The original code.
Code:

case VOLT :
    set_trip_points();
    break;

The new code has an extra case.
Code:

case VOLT :
case FSCONT :
    set_trip_points();
    break;


When I compared the list files they match except for the date code and file data at the start of the listing and this segment.

The original list file
Code:

1657:  GOTO   67D
....................         case VOLT :
....................             set_trip_points();
1658:  CALL   000
....................             break;

The new list file
1657:  GOTO   67D
....................         case VOLT :
....................         case FSCONT :
....................             set_trip_points();
1658:  CALL   000
....................             break;

There is no assembly code changes.

There is a one byte change between hex files. Is there any way to get the assembly code listing with the generate machine code?
Thanks
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Thu Oct 15, 2009 12:36 pm     Reply with quote
Post a short little test program that demonstrates the problem.
Strip your main program down to a very few lines and post it.
It must be able to compile without errors. It must have the
#include, #fuses, #use delay(), main(), and all necessary variable
and constant declarations. Try to keep it under 25 lines, total.

Also post your compiler version.
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