Indent your text (even by one column), and it will be rendered verbatim.

Anything that is not indented will be treated by paragraph, subject to various markup etc ... inluding your =head1 STUFF, so I don't think you can avoid getting that set apart. Unless you remove its =head1. ;-)

=head1 STUFF

 Soldier *    SOLDIER

 INPUT
 SOLDIER
        $var = INT2PTR($type, SvIV(SvRV($arg)))

 OUTPUT
 SOLDIER
        $arg     = newSViv(0);
        SV * obj = newSVrv($arg, \"Soldier\");
        sv_setiv(obj, (IV)$var);
        SvREADONLY_on(obj);
        $arg;

=cut
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