Implements features to run "Hello, world!" on simulated MIPS.

runtime/vm/disassembler_mips.cc

 // 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.
 
 #include "vm/disassembler.h"
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_MIPS.
 #if defined(TARGET_ARCH_MIPS)
 #include "platform/assert.h"
 
@@ skipping 578 matching lines @@
       break;
     }
     case LDC1: {
       Format(instr, "ldc1 'ft, 'imms('rs)");
       break;
     }
     case LH: {
       Format(instr, "lh 'rt, 'imms('rs)");
       break;
     }
+    case LHU: {
+      Format(instr, "lhu 'rt, 'imms('rs)");
+      break;
+    }
     case LUI: {
       Format(instr, "lui 'rt, 'immu");
       break;
     }
     case LW: {
       Format(instr, "lw 'rt, 'imms('rs)");
       break;
     }
     case LWC1: {
       Format(instr, "lwc1 'ft, 'imms('rs)");
@@ skipping 78 matching lines @@
                                   pc);
     pc += instruction_length;
   }
 
   return;
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_MIPS