Missed a const

--HG--
rename : src/arch/x86/isa/decoder.isa => src/arch/x86/isa/decoder/decoder.isa
extra : convert_revision : a60e7495da6fe99fa2375a3f801f2962c3e41adb

src/base/bitfield.hh

@@ -157,7 +157,7 @@ namespace BitfieldBackend
         //responsibility to make sure that there is a properly overloaded
         //version of this function for whatever type they want to overlay.
         inline uint64_t
-        getBits(int first, int last)
+        getBits(int first, int last) const
         {
             return bits(__data, first, last);
         }