00001 // 00002 // Copyright (c) 2005-2008 Kenichi Watanabe. 00003 // Copyright (c) 2005-2008 Yasuhiro Watari. 00004 // Copyright (c) 2005-2008 Hironori Ichibayashi. 00005 // Copyright (c) 2008-2009 Kazuo Horio. 00006 // Copyright (c) 2009-2013 Naruki Kurata. 00007 // Copyright (c) 2005-2013 Ryota Shioya. 00008 // Copyright (c) 2005-2013 Masahiro Goshima. 00009 // 00010 // This software is provided 'as-is', without any express or implied 00011 // warranty. In no event will the authors be held liable for any damages 00012 // arising from the use of this software. 00013 // 00014 // Permission is granted to anyone to use this software for any purpose, 00015 // including commercial applications, and to alter it and redistribute it 00016 // freely, subject to the following restrictions: 00017 // 00018 // 1. The origin of this software must not be misrepresented; you must not 00019 // claim that you wrote the original software. If you use this software 00020 // in a product, an acknowledgment in the product documentation would be 00021 // appreciated but is not required. 00022 // 00023 // 2. Altered source versions must be plainly marked as such, and must not be 00024 // misrepresented as being the original software. 00025 // 00026 // 3. This notice may not be removed or altered from any source 00027 // distribution. 00028 // 00029 // 00030 00031 00032 // 00033 // GlobalHistoryNX 00034 // 00035 // O[oA\/RetireUpdates 00036 // NXA\@IUpdateA~XCheckpoint 00037 // ゥIGlobalHistorys 00038 // 00039 00040 #ifndef __GLOBALHISTORY_H__ 00041 #define __GLOBALHISTORY_H__ 00042 00043 #include "Types.h" 00044 #include "Sim/Foundation/Checkpoint/CheckpointedData.h" 00045 #include "Sim/Foundation/Resource/ResourceNode.h" 00046 00047 namespace Onikiri 00048 { 00049 class CheckpointMaster; 00050 00051 class GlobalHistory : public PhysicalResourceNode 00052 { 00053 protected: 00054 CheckpointMaster* m_checkpointMaster; 00055 CheckpointedData<u64> m_globalHistory; // : 1bitTaken/NotTaken 00056 00057 public: 00058 GlobalHistory(); 00059 virtual ~GlobalHistory(); 00060 00061 BEGIN_RESOURCE_MAP() 00062 RESOURCE_ENTRY( CheckpointMaster, "checkpointMaster", m_checkpointMaster ) 00063 END_RESOURCE_MAP() 00064 00065 // 00066 void Initialize(InitPhase phase); 00067 00068 // dirpred \\ bpred 00069 void Predicted(bool taken); 00070 // RetireTaken/NotTaken bpred 00071 void Retired(bool taken); 00072 00073 // rbg(1V)(I)X 00074 void SetLeastSignificantBit(bool taken); 00075 00076 // accessors 00077 u64 GetHistory(); 00078 00079 }; 00080 00081 }; // namespace Onikiri 00082 00083 #endif // __GLOBALHISTORY_H__ 00084