Adds MIPS instructions to simulator, assembler, disassembler

runtime/vm/constants_mips.h

 // Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_CONSTANTS_MIPS_H_
 #define VM_CONSTANTS_MIPS_H_
 
 namespace dart {
 
 enum Register {
@@ skipping 243 matching lines @@
   TGE = 48,
   TGEU = 49,
   TLT = 50,
   TLTU = 51,
   TEQ = 52,
   TNE = 54,
 
   // SPECIAL2 opcodes.
   CLZ = 32,
   CLO = 33,
+
+  // SPECIAL3 opcodes.
+  EXT = 0,
+  INS = 4,

[regis, 2013/03/11 20:14:01]

Will there be other SPECIAL3 opcodes? If not, we may as well remove this
section.

[zra, 2013/03/11 20:25:01]

I don't think so. I have removed it.

 };
 
 
 enum RtRegImm {
   BLTZ = 0,
   BGEZ = 1,
   BLTZL = 2,
   BGEZL = 3,
   TGEI = 8,
   TGEIU = 9,
@@ skipping 77 matching lines @@
   }
 
  private:
   DISALLOW_ALLOCATION();
   DISALLOW_IMPLICIT_CONSTRUCTORS(Instr);
 };
 
 }  // namespace dart
 
 #endif  // VM_CONSTANTS_MIPS_H_