Disassembler for x64.

runtime/vm/disassembler_arm.cc

 // Copyright (c) 2011, 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/globals.h"  // Needed here to get TARGET_ARCH_ARM.
 #if defined(TARGET_ARCH_ARM)
 
 #include "vm/disassembler.h"
 
 #include "vm/assert.h"
 
 namespace dart {
 
 int Disassembler::DecodeInstruction(char* hex_buffer, intptr_t hex_size,
                                     char* human_buffer, intptr_t human_size,
                                     uword pc) {
   UNIMPLEMENTED();
   return 0;
 }
 
 
-const char* Disassembler::RegisterName(Register reg) {
+void Disassembler::Disassemble(uword start,
+                               uword end,
+                               DisassemblyFormatter* formatter) {
   UNIMPLEMENTED();
-  return NULL;
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM