[MIPS] Add Fast Art interpreter for Mips32.

Change-Id: I6b9714dc8c01b8c9080bcba175faec1d2de08f8f
diff --git a/runtime/interpreter/mterp/mips/unopWide.S b/runtime/interpreter/mterp/mips/unopWide.S
new file mode 100644
index 0000000..fd25dff
--- /dev/null
+++ b/runtime/interpreter/mterp/mips/unopWide.S
@@ -0,0 +1,20 @@
+%default {"preinstr":"", "result0":"a0", "result1":"a1"}
+    /*
+     * Generic 64-bit unary operation.  Provide an "instr" line that
+     * specifies an instruction that performs "result = op a0/a1".
+     * This could be MIPS instruction or a function call.
+     *
+     * For: neg-long, not-long, neg-double,
+     */
+    /* unop vA, vB */
+    GET_OPA4(rOBJ)                         #  rOBJ <- A+
+    GET_OPB(a3)                            #  a3 <- B
+    EAS2(a3, rFP, a3)                      #  a3 <- &fp[B]
+    LOAD64(a0, a1, a3)                     #  a0/a1 <- vAA
+    FETCH_ADVANCE_INST(1)                  #  advance rPC, load rINST
+    $preinstr                              #  optional op
+    $instr                                 #  a0/a1 <- op, a2-a3 changed
+    GET_INST_OPCODE(t0)                    #  extract opcode from rINST
+    SET_VREG64($result0, $result1, rOBJ)   #  vAA <- a0/a1
+    GOTO_OPCODE(t0)                        #  jump to next instruction
+    /* 12-13 instructions */