gem5/cpu/beta_cpu/btb.hh
Kevin Lim c2fcac7c0d Fix up code for initial release. The main bug that remains is properly forwarding data from stores to loads, specifically when they are of differing sizes.
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
2005-05-19 01:28:25 -04:00

53 lines
888 B
C++

#ifndef __CPU_BETA_CPU_BTB_HH__
#define __CPU_BETA_CPU_BTB_HH__
// For Addr type.
#include "arch/alpha/isa_traits.hh"
class DefaultBTB
{
private:
struct BTBEntry
{
BTBEntry()
: tag(0), target(0), valid(false)
{
}
Addr tag;
Addr target;
bool valid;
};
public:
DefaultBTB(unsigned numEntries, unsigned tagBits,
unsigned instShiftAmt);
Addr lookup(const Addr &inst_PC);
bool valid(const Addr &inst_PC);
void update(const Addr &inst_PC, const Addr &target_PC);
private:
inline unsigned getIndex(const Addr &inst_PC);
inline Addr getTag(const Addr &inst_PC);
BTBEntry *btb;
unsigned numEntries;
unsigned idxMask;
unsigned tagBits;
unsigned tagMask;
unsigned instShiftAmt;
unsigned tagShiftAmt;
};
#endif // __CPU_BETA_CPU_BTB_HH__