.
<DT><TT>ALIGNMENT</tt>
<DD>
Defined to be the largest <TT>N</tt>, such that
all pointer are guaranteed to be aligned on <TT>N</tt>-byte boundaries.
defining it to be 1 will always work, but perform poorly.
For all modern 32-bit platforms, this is 4.  For all modern 64-bit
platforms, this is 8.  Whether or not X86 qualifies as a modern
architecture here is compiler- and OS-dependent.
<DT><TT>DATASTART</tt>
<DD>
The beginning of the main data segment.  The collector will trace all
memory between <TT>DATASTA