c2fcac7c0d
cpu/base_dyn_inst.cc: Remove unused commented out code. cpu/base_dyn_inst.hh: Fix up comments. cpu/beta_cpu/2bit_local_pred.cc: Reorder code to match header file. cpu/beta_cpu/2bit_local_pred.hh: Update comments. cpu/beta_cpu/alpha_dyn_inst.hh: Remove useless comments. cpu/beta_cpu/alpha_dyn_inst_impl.hh: cpu/beta_cpu/alpha_full_cpu_impl.hh: cpu/beta_cpu/comm.hh: cpu/beta_cpu/iew_impl.hh: Remove unused commented code. cpu/beta_cpu/alpha_full_cpu.hh: Remove obsolete comment. cpu/beta_cpu/alpha_impl.hh: cpu/beta_cpu/full_cpu.hh: Alphabetize includes. cpu/beta_cpu/bpred_unit.hh: Remove unused global history code. cpu/beta_cpu/btb.hh: cpu/beta_cpu/free_list.hh: Use full path in #defines. cpu/beta_cpu/commit.hh: cpu/beta_cpu/decode.hh: Reorder functions. cpu/beta_cpu/commit_impl.hh: Remove obsolete commented code. cpu/beta_cpu/fetch.hh: Remove obsolete comments. cpu/beta_cpu/fetch_impl.hh: cpu/beta_cpu/rename_impl.hh: Remove commented code. cpu/beta_cpu/full_cpu.cc: Remove useless defines. cpu/beta_cpu/inst_queue.hh: Use full path for #defines. cpu/beta_cpu/inst_queue_impl.hh: Reorder functions to match header file. cpu/beta_cpu/mem_dep_unit.hh: Use full path name for #defines. cpu/beta_cpu/ras.hh: Use full path names for #defines. Remove mod operation. cpu/beta_cpu/regfile.hh: Remove unused commented code, fix up current comments. cpu/beta_cpu/tournament_pred.cc: cpu/beta_cpu/tournament_pred.hh: Update programming style. --HG-- extra : convert_revision : fb9d18a853f58a1108ff827e3c123d5b52a0608a
53 lines
888 B
C++
53 lines
888 B
C++
#ifndef __CPU_BETA_CPU_BTB_HH__
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#define __CPU_BETA_CPU_BTB_HH__
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// For Addr type.
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#include "arch/alpha/isa_traits.hh"
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class DefaultBTB
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{
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private:
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struct BTBEntry
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{
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BTBEntry()
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: tag(0), target(0), valid(false)
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{
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}
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Addr tag;
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Addr target;
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bool valid;
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};
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public:
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DefaultBTB(unsigned numEntries, unsigned tagBits,
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unsigned instShiftAmt);
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Addr lookup(const Addr &inst_PC);
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bool valid(const Addr &inst_PC);
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void update(const Addr &inst_PC, const Addr &target_PC);
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private:
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inline unsigned getIndex(const Addr &inst_PC);
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inline Addr getTag(const Addr &inst_PC);
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BTBEntry *btb;
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unsigned numEntries;
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unsigned idxMask;
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unsigned tagBits;
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unsigned tagMask;
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unsigned instShiftAmt;
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unsigned tagShiftAmt;
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};
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#endif // __CPU_BETA_CPU_BTB_HH__
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