changed polarity of is_min bit in range operation to better match vrange* instructions immediate encoding

git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@12456 6c8e4198-a580-4521-a02f-c9ae86df1db9
fixed vrange* abs comparisons in softfloat

git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@12457 6c8e4198-a580-4521-a02f-c9ae86df1db9