Fix copy-paste fail (nw)

git-svn-id: svn://dspnet.fr/mame/trunk@26437 749742ba-7341-0410-aadc-df50b521781e
fix for divide by zero, if there is no chd. (nw) 

git-svn-id: svn://dspnet.fr/mame/trunk@26438 749742ba-7341-0410-aadc-df50b521781e
peplus.c: Correct "U" location for use with the Super Board. - NW

git-svn-id: svn://dspnet.fr/mame/trunk@26439 749742ba-7341-0410-aadc-df50b521781e