make m5 readfile work on solaris... we can have a solaris regression soon!

make m5 readfile work on solaris... we can have a solaris regression soon!

src/arch/sparc/isa/decoder.isa:
    add readfile and break to sparc decoder
src/arch/sparc/isa/operands.isa:
    fix O0-O5 operands registers
util/m5/Makefile.sparc:
    Make sparc makefile compile a 64bit binary
util/m5/m5.c:
    readfile was in here twice, once will be sufficient I think
util/m5/m5op_sparc.S:
    implement readfile and debugbreak

--HG--
extra : convert_revision : 139b3f480ee6342b37b5642e072c8486d91a3944