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diff --git a/runtime/disassembler_arm.h b/runtime/disassembler_arm.h
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+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_SRC_DISASSEMBLER_ARM_H_
+#define ART_SRC_DISASSEMBLER_ARM_H_
+
+#include <vector>
+
+#include "disassembler.h"
+
+namespace art {
+namespace arm {
+
+class DisassemblerArm : public Disassembler {
+ public:
+  DisassemblerArm();
+
+  virtual size_t Dump(std::ostream& os, const uint8_t* begin);
+  virtual void Dump(std::ostream& os, const uint8_t* begin, const uint8_t* end);
+ private:
+  void DumpArm(std::ostream& os, const uint8_t* instr);
+
+  // Returns the size of the instruction just decoded
+  size_t DumpThumb16(std::ostream& os, const uint8_t* instr);
+  size_t DumpThumb32(std::ostream& os, const uint8_t* instr_ptr);
+
+  void DumpBranchTarget(std::ostream& os, const uint8_t* instr_ptr, int32_t imm32);
+  void DumpCond(std::ostream& os, uint32_t cond);
+
+  std::vector<const char*> it_conditions_;
+
+  DISALLOW_COPY_AND_ASSIGN(DisassemblerArm);
+};
+
+}  // namespace arm
+}  // namespace art
+
+#endif  // ART_SRC_DISASSEMBLER_ARM_H_