<chapter>
<title>Characteristics of Compiled Programs</title>

<section>
<title>The Object Code Module</title>
<para>
The compiler produces position-independent, reentrant 6809 code
in a standard OS-9 memory module format. The format of an executable
program module is shown below. Detailed descriptions of each
section of the module are given on following pages.
</para>
<informalfigure>
<screen>
Module
Offset

                 +-------------------------------+
                 !                               !
                 !         Module Header         !
                 !                               !
                 !-------------------------------!
                 !       Execution Offset        !
                 !-------------------------------!
                 !    Permanent Storage Size     !
                 !-------------------------------!
                 !   Data-text Reference Count   !
                 v                               v
                 :  Data-text Reference Offsets  :
                 ^                               ^
</screen>
</informalfigure>
<section>
<title>Module Header</title>
<para>
This is a standard module header with the type/language byte set to
$11 (Program + 6809 Object Code), and the attribute/revision byte
set to $81 (Reentrant + 1).
</para>
</section>
</section>
</chapter>