Basic MIPS floating point test works now ... I had to realize that when using the...

Basic MIPS floating point test works now ... I had to realize that when using the double FP reg the
register with the higher # contains the most significant bytes...

arch/mips/isa/decoder.isa:
    divide instruction fixes
arch/mips/isa_traits.cc:
    use double as argument to cvt & round function.
    clean up cout statements in function.
arch/mips/isa_traits.hh:
    In MIPS the higher # reg of a doubles pair is ALSO the most significant reg.
    Once I switched this the basic MIPS FP test I had worked.

--HG--
extra : convert_revision : 45c80df229e6174d0b52fc7cfb530642b1f1fc35