[Ohrrpgce] SVN: teeemcee/7992 Fix autotest failure in 64 bit builds.

[subversion at HamsterRepublic.com]

teeemcee
2016-05-01 05:45:28 -0700 (Sun, 01 May 2016)
277
Fix autotest failure in 64 bit builds.

Battles were broken because the magic stack value &hDEEFDEEF wrapped around to a
negative value in 32 bit builds, but not in 64 bit builds, but the result from
popdw is a signed int32.

Also fixed warnings when compiling 64bit reloadtest
---
U   wip/bmod.rbas
U   wip/reloadtest.bas
U   wip/whatsnew.txt