1/*
2 * Copyright (c) 2014 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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58 public:
59 BiModeBP(const BiModeBPParams *params);
60 void uncondBranch(Addr pc, void * &bp_history);
61 void squash(void *bp_history);
62 bool lookup(Addr branch_addr, void * &bp_history);
63 void btbUpdate(Addr branch_addr, void * &bp_history);
64 void update(Addr branch_addr, bool taken, void *bp_history, bool squashed);
65 void retireSquashed(void *bp_history);
66
67 private:
68 void updateGlobalHistReg(bool taken);
69
70 struct BPHistory {
71 unsigned globalHistoryReg;
72 // was the taken array's prediction used?
73 // true: takenPred used

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