o special things:
* no tasmcond (conditions are currently encoded in opcode names,
may be changed later)
* no actual registers, just a couple of fake ones to indicate
the locals stack and the operands/evaluation stack
* no registers for the return value; they're returned on the
evaluation stack; may be handled like the x87 in the future
git-svn-id: branches/jvmbackend@18291 -