[78] | 1 | #ifndef morpheo_behavioural_core_multi_front_end_front_end_prediction_unit_update_prediction_table_Update_Prediction_Table_h |
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| 2 | #define morpheo_behavioural_core_multi_front_end_front_end_prediction_unit_update_prediction_table_Update_Prediction_Table_h |
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| 3 | |
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| 4 | /* |
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| 5 | * $Id: Update_Prediction_Table.h 81 2008-04-15 18:40:01Z rosiere $ |
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| 6 | * |
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| 7 | * [ Description ] |
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| 8 | * |
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| 9 | */ |
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| 10 | |
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| 11 | #ifdef SYSTEMC |
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| 12 | #include "systemc.h" |
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| 13 | #endif |
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| 14 | |
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| 15 | #include <iostream> |
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| 16 | #include "Common/include/ToString.h" |
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| 17 | #include "Common/include/Debug.h" |
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| 18 | |
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| 19 | #include "Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Update_Prediction_Table/include/Types.h" |
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| 20 | #include "Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Update_Prediction_Table/include/Parameters.h" |
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| 21 | #ifdef STATISTICS |
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| 22 | #include "Behavioural/include/Stat.h" |
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| 23 | #endif |
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| 24 | #include "Behavioural/include/Component.h" |
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| 25 | #ifdef VHDL |
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| 26 | #include "Behavioural/include/Vhdl.h" |
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| 27 | #endif |
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| 28 | #include "Behavioural/include/Usage.h" |
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| 29 | |
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| 30 | namespace morpheo { |
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| 31 | namespace behavioural { |
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| 32 | |
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| 33 | namespace core { |
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| 34 | namespace multi_front_end { |
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| 35 | namespace front_end { |
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| 36 | namespace prediction_unit { |
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| 37 | namespace update_prediction_table { |
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| 38 | |
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| 39 | |
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| 40 | class Update_Prediction_Table |
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| 41 | #if SYSTEMC |
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| 42 | : public sc_module |
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| 43 | #endif |
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| 44 | { |
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| 45 | // -----[ fields ]---------------------------------------------------- |
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| 46 | // Parameters |
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| 47 | protected : const std::string _name; |
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| 48 | protected : const Parameters * _param; |
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| 49 | private : const Tusage_t _usage; |
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| 50 | |
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| 51 | #ifdef STATISTICS |
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| 52 | public : Stat * _stat; |
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| 53 | #endif |
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| 54 | |
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| 55 | public : Component * _component; |
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| 56 | private : Interfaces * _interfaces; |
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| 57 | |
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| 58 | #ifdef SYSTEMC |
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| 59 | // ~~~~~[ Interface ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 60 | // ~~~~~[ Interface : "" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 61 | public : SC_CLOCK * in_CLOCK ; |
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| 62 | public : SC_IN (Tcontrol_t) * in_NRESET ; |
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| 63 | |
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[81] | 64 | // ~~~~~[ Interface : "predict" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 65 | public : SC_IN (Tcontrol_t ) ** in_PREDICT_VAL ; //[nb_inst_predict] |
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| 66 | public : SC_OUT(Tcontrol_t ) ** out_PREDICT_ACK ; //[nb_inst_predict] |
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| 67 | public : SC_IN (Tcontext_t ) ** in_PREDICT_CONTEXT_ID ; //[nb_inst_predict] |
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| 68 | public : SC_IN (Taddress_t ) ** in_PREDICT_BTB_ADDRESS_SRC ; //[nb_inst_predict] |
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| 69 | public : SC_IN (Taddress_t ) ** in_PREDICT_BTB_ADDRESS_DEST ; //[nb_inst_predict] |
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| 70 | public : SC_IN (Tbranch_condition_t) ** in_PREDICT_BTB_CONDITION ; //[nb_inst_predict] |
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| 71 | public : SC_IN (Tcontrol_t ) ** in_PREDICT_BTB_LAST_TAKE ; //[nb_inst_predict] |
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| 72 | public : SC_IN (Tcontrol_t ) ** in_PREDICT_BTB_IS_ACCURATE ; //[nb_inst_predict] |
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| 73 | public : SC_IN (Thistory_t ) ** in_PREDICT_DIR_HISTORY ; //[nb_inst_predict] |
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| 74 | public : SC_IN (Taddress_t ) ** in_PREDICT_RAS_ADDRESS ; //[nb_inst_predict] |
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| 75 | public : SC_IN (Tptr_t ) ** in_PREDICT_RAS_INDEX ; //[nb_inst_predict] |
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| 76 | //public : SC_OUT(Tprediction_ptr_t ) ** out_PREDICT_UPDATE_PREDICTION_ID; //[nb_inst_predict] |
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| 77 | |
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| 78 | // ~~~~~[ Interface : "decod" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 79 | public : SC_IN (Tcontrol_t ) ** in_DECOD_VAL ; //[nb_inst_decod] |
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| 80 | public : SC_OUT(Tcontrol_t ) ** out_DECOD_ACK ; //[nb_inst_decod] |
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| 81 | public : SC_IN (Tcontext_t ) ** in_DECOD_CONTEXT_ID ; //[nb_inst_decod] |
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| 82 | public : SC_IN (Taddress_t ) ** in_DECOD_BTB_ADDRESS_SRC ; //[nb_inst_decod] |
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| 83 | public : SC_IN (Taddress_t ) ** in_DECOD_BTB_ADDRESS_DEST ; //[nb_inst_decod] |
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| 84 | public : SC_IN (Tbranch_condition_t) ** in_DECOD_BTB_CONDITION ; //[nb_inst_decod] |
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| 85 | public : SC_IN (Tcontrol_t ) ** in_DECOD_BTB_LAST_TAKE ; //[nb_inst_decod] |
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| 86 | //public : SC_IN (Tcontrol_t ) ** in_DECOD_BTB_IS_ACCURATE ; //[nb_inst_decod] |
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| 87 | //public : SC_IN (Thistory_t ) ** in_DECOD_DIR_HISTORY ; //[nb_inst_decod] // if ifetch prediction is miss -> miss btb -> make a static state |
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| 88 | public : SC_IN (Taddress_t ) ** in_DECOD_RAS_ADDRESS ; //[nb_inst_decod] |
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| 89 | public : SC_IN (Tptr_t ) ** in_DECOD_RAS_INDEX ; //[nb_inst_decod] |
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| 90 | public : SC_IN (Tcontrol_t ) ** in_DECOD_MISS_PREDICTION ; //[nb_inst_decod] // ifetch is a miss pred |
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| 91 | public : SC_IN (Tprediction_ptr_t ) ** in_DECOD_UPDATE_PREDICTION_ID ; //[nb_inst_decod] |
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| 92 | //public : SC_OUT(Tdepth_t ) ** out_DECOD_DEPTH ; //[nb_inst_decod] |
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| 93 | |
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| 94 | // ~~~~~[ Interface : "branch_complete" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 95 | public : SC_IN (Tcontrol_t ) ** in_BRANCH_COMPLETE_VAL ; //[nb_inst_branch_complete] |
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| 96 | public : SC_OUT(Tcontrol_t ) ** out_BRANCH_COMPLETE_ACK ; //[nb_inst_branch_complete] |
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| 97 | public : SC_IN (Tcontext_t ) ** in_BRANCH_COMPLETE_CONTEXT_ID ; //[nb_inst_branch_complete] |
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| 98 | public : SC_IN (Tdepth_t ) ** in_BRANCH_COMPLETE_DEPTH ; //[nb_inst_branch_complete] |
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| 99 | public : SC_IN (Taddress_t ) ** in_BRANCH_COMPLETE_ADDRESS ; //[nb_inst_branch_complete] |
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| 100 | public : SC_IN (Tcontrol_t ) ** in_BRANCH_COMPLETE_FLAG ; //[nb_inst_branch_complete] |
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| 101 | public : SC_OUT(Tcontrol_t ) ** out_BRANCH_COMPLETE_MISS_PREDICTION; //[nb_inst_branch_complete] |
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| 102 | public : SC_OUT(Tcontrol_t ) ** out_BRANCH_COMPLETE_TAKE ; //[nb_inst_branch_complete] |
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| 103 | public : SC_OUT(Taddress_t ) ** out_BRANCH_COMPLETE_ADDRESS_SRC ; //[nb_inst_branch_complete] |
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| 104 | public : SC_OUT(Taddress_t ) ** out_BRANCH_COMPLETE_ADDRESS_DEST ; //[nb_inst_branch_complete] |
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| 105 | |
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| 106 | // ~~~~~[ Interface : "update" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 107 | public : SC_OUT(Tcontrol_t ) ** out_UPDATE_VAL ; //[nb_inst_update] |
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| 108 | public : SC_IN (Tcontrol_t ) ** in_UPDATE_ACK ; //[nb_inst_update] |
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| 109 | public : SC_OUT(Tcontext_t ) ** out_UPDATE_CONTEXT_ID ; //[nb_inst_update] |
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| 110 | public : SC_OUT(Tcontrol_t ) ** out_UPDATE_MISS_PREDICTION ; //[nb_inst_update] |
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| 111 | public : SC_OUT(Tcontrol_t ) ** out_UPDATE_DIRECTION_GOOD ; //[nb_inst_update] |
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| 112 | public : SC_OUT(Tcontrol_t ) ** out_UPDATE_BTB_VAL ; //[nb_inst_update] |
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| 113 | public : SC_OUT(Taddress_t ) ** out_UPDATE_BTB_ADDRESS_SRC ; //[nb_inst_update] |
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| 114 | public : SC_OUT(Taddress_t ) ** out_UPDATE_BTB_ADDRESS_DEST ; //[nb_inst_update] |
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| 115 | public : SC_OUT(Tbranch_condition_t) ** out_UPDATE_BTB_CONDITION ; //[nb_inst_update] |
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| 116 | public : SC_OUT(Tcontrol_t ) ** out_UPDATE_DIR_VAL ; //[nb_inst_update] |
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| 117 | public : SC_OUT(Thistory_t ) ** out_UPDATE_DIR_HISTORY ; //[nb_inst_update] |
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| 118 | public : SC_OUT(Tcontrol_t ) ** out_UPDATE_RAS_VAL ; //[nb_inst_update] |
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| 119 | public : SC_OUT(Taddress_t ) ** out_UPDATE_RAS_ADDRESS ; //[nb_inst_update] |
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| 120 | public : SC_OUT(Tptr_t ) ** out_UPDATE_RAS_INDEX ; //[nb_inst_update] |
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| 121 | public : SC_OUT(Tcontrol_t ) ** out_UPDATE_RAS_PREDICTION_IFETCH; //[nb_inst_update] |
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| 122 | |
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| 123 | // ~~~~~[ Interface : "depth" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 124 | public : SC_OUT(Tdepth_t ) ** out_DEPTH_NB_BRANCH; //[nb_context] |
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| 125 | public : SC_OUT(Tdepth_t ) ** out_DEPTH_TAIL; //[nb_context] |
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| 126 | |
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[78] | 127 | // ~~~~~[ Component ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 128 | |
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| 129 | // ~~~~~[ Register ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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[81] | 130 | private : uint32_t * reg_TOP ; //[nb_context] |
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| 131 | private : uint32_t * reg_BOTTOM ; //[nb_context] |
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| 132 | private : uint32_t * reg_NB_ELT ; //[nb_context] |
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| 133 | private : uint32_t * reg_NB_ELT_NEED_UPDATE ; //[nb_context] |
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| 134 | private : entry_t ** reg_UPDATE_PREDICTION_TABLE; //[nb_context][size_queue] |
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| 135 | private : uint32_t reg_UPDATE_PRIORITY ; |
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[78] | 136 | |
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| 137 | // ~~~~~[ Internal ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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[81] | 138 | private : Tcontrol_t * internal_PREDICT_ACK ; //[nb_inst_predict] |
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| 139 | private : Tcontrol_t * internal_DECOD_ACK ; //[nb_inst_decod] |
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| 140 | private : Tcontrol_t * internal_BRANCH_COMPLETE_ACK ; //[nb_inst_branch_complete] |
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| 141 | private : Tcontrol_t * internal_BRANCH_COMPLETE_MISS_PREDICTION; //[nb_inst_branch_complete] |
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| 142 | private : Tcontrol_t * internal_BRANCH_COMPLETE_TAKE ; //[nb_inst_branch_complete] |
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| 143 | private : Taddress_t * internal_BRANCH_COMPLETE_ADDRESS_DEST ; //[nb_inst_branch_complete] |
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| 144 | private : Tcontrol_t * internal_UPDATE_VAL ; //[nb_inst_update] |
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| 145 | private : Tcontext_t * internal_UPDATE_CONTEXT_ID ; //[nb_inst_update] |
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| 146 | private : Tdepth_t * internal_UPDATE_DEPTH ; //[nb_inst_update] |
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[78] | 147 | #endif |
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| 148 | |
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| 149 | // -----[ Methods ]--------------------------------------------------- |
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| 150 | |
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| 151 | #ifdef SYSTEMC |
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| 152 | SC_HAS_PROCESS (Update_Prediction_Table); |
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| 153 | #endif |
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| 154 | public : Update_Prediction_Table |
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| 155 | ( |
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| 156 | #ifdef SYSTEMC |
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| 157 | sc_module_name name, |
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| 158 | #else |
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| 159 | std::string name, |
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| 160 | #endif |
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| 161 | #ifdef STATISTICS |
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| 162 | morpheo::behavioural::Parameters_Statistics * param_statistics, |
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| 163 | #endif |
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| 164 | Parameters * param, |
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[81] | 165 | morpheo::behavioural::Tusage_t usage |
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[78] | 166 | ); |
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| 167 | public : ~Update_Prediction_Table (void); |
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| 168 | |
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| 169 | private : void allocation ( |
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| 170 | #ifdef STATISTICS |
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| 171 | morpheo::behavioural::Parameters_Statistics * param_statistics |
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| 172 | #else |
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| 173 | void |
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| 174 | #endif |
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| 175 | ); |
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| 176 | private : void deallocation (void); |
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| 177 | |
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| 178 | #ifdef SYSTEMC |
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| 179 | public : void transition (void); |
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[81] | 180 | public : void genMoore (void); |
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| 181 | public : void genMealy_predict (void); |
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| 182 | public : void genMealy_decod (void); |
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| 183 | public : void genMealy_branch_complete (void); |
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| 184 | //public : void genMealy_update (void); |
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[78] | 185 | #endif |
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| 186 | |
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| 187 | #if VHDL |
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| 188 | public : void vhdl (void); |
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| 189 | private : void vhdl_declaration (Vhdl * & vhdl); |
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| 190 | private : void vhdl_body (Vhdl * & vhdl); |
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| 191 | #endif |
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| 192 | |
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| 193 | #ifdef STATISTICS |
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| 194 | public : void statistics_allocation (morpheo::behavioural::Parameters_Statistics * param_statistics); |
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| 195 | public : void statistics_deallocation (void); |
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| 196 | #endif |
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| 197 | #if defined(STATISTICS) or defined(VHDL_TESTBENCH) |
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| 198 | private : void end_cycle (void); |
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| 199 | #endif |
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| 200 | }; |
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| 201 | |
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| 202 | }; // end namespace update_prediction_table |
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| 203 | }; // end namespace prediction_unit |
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| 204 | }; // end namespace front_end |
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| 205 | }; // end namespace multi_front_end |
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| 206 | }; // end namespace core |
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| 207 | |
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| 208 | }; // end namespace behavioural |
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| 209 | }; // end namespace morpheo |
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| 210 | |
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| 211 | #endif |
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