* tcgx86.make_simple_ref: in i8086 memory models with DS<>SS, add an SS: segment
  override when converting SP-relative references to use a general purpose
  register



git-svn-id: http://svn.freepascal.org/svn/fpc/trunk@27473 3ad0048d-3df7-0310-abae-a5850022a9f2