[78] | 1 | #ifndef morpheo_behavioural_core_multi_front_end_front_end_prediction_unit_Prediction_unit_h |
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| 2 | #define morpheo_behavioural_core_multi_front_end_front_end_prediction_unit_Prediction_unit_h |
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| 3 | |
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| 4 | /* |
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| 5 | * $Id: Prediction_unit.h 95 2008-12-16 16:24:26Z 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 | #include "Behavioural/include/Types.h" |
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| 19 | |
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| 20 | #include "Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/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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[82] | 30 | #include "Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Branch_Target_Buffer/include/Branch_Target_Buffer.h" |
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| 31 | #include "Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Direction/include/Direction.h" |
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| 32 | #include "Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Return_Address_Stack/include/Return_Address_Stack.h" |
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| 33 | #include "Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Update_Prediction_Table/include/Update_Prediction_Table.h" |
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| 34 | #include "Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Prediction_unit_Glue/include/Prediction_unit_Glue.h" |
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| 35 | |
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[78] | 36 | namespace morpheo { |
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| 37 | namespace behavioural { |
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| 38 | |
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| 39 | namespace core { |
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| 40 | namespace multi_front_end { |
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| 41 | namespace front_end { |
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| 42 | namespace prediction_unit { |
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| 43 | |
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| 44 | |
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| 45 | class Prediction_unit |
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| 46 | #if SYSTEMC |
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| 47 | : public sc_module |
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| 48 | #endif |
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| 49 | { |
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| 50 | // -----[ fields ]---------------------------------------------------- |
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| 51 | // Parameters |
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| 52 | protected : const std::string _name; |
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| 53 | protected : const Parameters * _param; |
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| 54 | private : const Tusage_t _usage; |
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| 55 | |
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| 56 | #ifdef STATISTICS |
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| 57 | public : Stat * _stat; |
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| 58 | #endif |
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| 59 | |
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| 60 | public : Component * _component; |
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| 61 | private : Interfaces * _interfaces; |
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| 62 | |
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| 63 | #ifdef SYSTEMC |
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| 64 | // ~~~~~[ Interface ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 65 | // ~~~~~[ Interface : "" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 66 | public : SC_CLOCK * in_CLOCK ; |
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| 67 | public : SC_IN (Tcontrol_t) * in_NRESET ; |
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| 68 | |
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[82] | 69 | // ~~~~~[ Interface : "predict" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 70 | public : SC_IN (Tcontrol_t ) ** in_PREDICT_VAL ; //[nb_context] |
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| 71 | public : SC_OUT(Tcontrol_t ) ** out_PREDICT_ACK ; //[nb_context] |
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| 72 | public : SC_IN (Taddress_t ) ** in_PREDICT_PC_PREVIOUS ; //[nb_context] |
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| 73 | public : SC_IN (Taddress_t ) ** in_PREDICT_PC_CURRENT ; //[nb_context] |
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| 74 | public : SC_IN (Tcontrol_t ) ** in_PREDICT_PC_CURRENT_IS_DS_TAKE ; //[nb_context] |
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| 75 | public : SC_OUT(Taddress_t ) ** out_PREDICT_PC_NEXT ; //[nb_context] |
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| 76 | public : SC_OUT(Tcontrol_t ) ** out_PREDICT_PC_NEXT_IS_DS_TAKE ; //[nb_context] |
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| 77 | public : SC_OUT(Tcontrol_t ) *** out_PREDICT_INSTRUCTION_ENABLE ; //[nb_context][nb_instruction] |
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| 78 | public : SC_OUT(Tinst_ifetch_ptr_t ) ** out_PREDICT_INST_IFETCH_PTR ; //[nb_context] |
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| 79 | public : SC_OUT(Tbranch_state_t ) ** out_PREDICT_BRANCH_STATE ; //[nb_context] |
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| 80 | public : SC_OUT(Tprediction_ptr_t ) ** out_PREDICT_BRANCH_UPDATE_PREDICTION_ID ; //[nb_context] |
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| 81 | |
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| 82 | // ~~~~~[ Interface : "decod" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 83 | public : SC_IN (Tcontrol_t ) *** in_DECOD_VAL ; //[nb_decod_unit][nb_inst_decod] |
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| 84 | public : SC_OUT(Tcontrol_t ) *** out_DECOD_ACK ; //[nb_decod_unit][nb_inst_decod] |
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| 85 | public : SC_IN (Tcontext_t ) *** in_DECOD_CONTEXT_ID ; //[nb_decod_unit][nb_inst_decod] |
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| 86 | public : SC_IN (Tcontrol_t ) *** in_DECOD_MATCH_INST_IFETCH_PTR ; //[nb_decod_unit][nb_inst_decod] |
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| 87 | public : SC_IN (Tbranch_state_t ) *** in_DECOD_BRANCH_STATE ; //[nb_decod_unit][nb_inst_decod] |
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| 88 | public : SC_IN (Tprediction_ptr_t ) *** in_DECOD_BRANCH_UPDATE_PREDICTION_ID ; //[nb_decod_unit][nb_inst_decod] |
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| 89 | public : SC_IN (Tbranch_condition_t) *** in_DECOD_BRANCH_CONDITION ; //[nb_decod_unit][nb_inst_decod] |
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| 90 | public : SC_IN (Tcontrol_t ) *** in_DECOD_BRANCH_DIRECTION ; //[nb_decod_unit][nb_inst_decod] |
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| 91 | public : SC_IN (Taddress_t ) *** in_DECOD_ADDRESS_SRC ; //[nb_decod_unit][nb_inst_decod] |
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| 92 | public : SC_IN (Taddress_t ) *** in_DECOD_ADDRESS_DEST ; //[nb_decod_unit][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 : "branch_event" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 107 | public : SC_OUT(Tcontrol_t ) ** out_BRANCH_EVENT_VAL ; //[nb_context] |
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| 108 | public : SC_IN (Tcontrol_t ) ** in_BRANCH_EVENT_ACK ; //[nb_context] |
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| 109 | //public : SC_OUT(Tcontext_t ) ** out_BRANCH_EVENT_CONTEXT_ID ; //[nb_context] |
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| 110 | //public : SC_OUT(Tdepth_t ) ** out_BRANCH_EVENT_DEPTH ; //[nb_context] |
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| 111 | //public : SC_OUT(Tcontrol_t ) ** out_BRANCH_EVENT_MISS_PREDICTION ; //[nb_context] |
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| 112 | public : SC_OUT(Taddress_t ) ** out_BRANCH_EVENT_ADDRESS_SRC ; //[nb_context] |
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[95] | 113 | public : SC_OUT(Tcontrol_t ) ** out_BRANCH_EVENT_ADDRESS_DEST_VAL ; //[nb_context] |
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[82] | 114 | public : SC_OUT(Taddress_t ) ** out_BRANCH_EVENT_ADDRESS_DEST ; //[nb_context] |
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| 115 | |
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[95] | 116 | // ~~~~~[ Interface : "event" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 117 | public : SC_IN (Tevent_state_t ) ** in_EVENT_STATE ; //[nb_context] |
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| 118 | public : SC_IN (Tevent_type_t ) ** in_EVENT_TYPE ; //[nb_context] |
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| 119 | public : SC_IN (Tdepth_t ) ** in_EVENT_DEPTH ; //[nb_context] |
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| 120 | |
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[82] | 121 | // ~~~~~[ Interface : "depth" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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[88] | 122 | public : SC_OUT(Tdepth_t ) ** out_DEPTH_CURRENT ; //[nb_context] |
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| 123 | public : SC_OUT(Tdepth_t ) ** out_DEPTH_MIN ; //[nb_context] |
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| 124 | public : SC_OUT(Tdepth_t ) ** out_DEPTH_MAX ; //[nb_context] |
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[82] | 125 | |
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[78] | 126 | // ~~~~~[ Component ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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[82] | 127 | public : morpheo::behavioural::core::multi_front_end::front_end::prediction_unit::branch_target_buffer ::Branch_Target_Buffer * _component_btb; |
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| 128 | public : morpheo::behavioural::core::multi_front_end::front_end::prediction_unit::direction ::Direction * _component_dir; |
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| 129 | public : morpheo::behavioural::core::multi_front_end::front_end::prediction_unit::return_address_stack ::Return_Address_Stack * _component_ras; |
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| 130 | public : morpheo::behavioural::core::multi_front_end::front_end::prediction_unit::update_prediction_table::Update_Prediction_Table * _component_upt; |
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| 131 | public : morpheo::behavioural::core::multi_front_end::front_end::prediction_unit::prediction_unit_glue ::Prediction_unit_Glue * _component_glue; |
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[78] | 132 | |
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| 133 | // ~~~~~[ Register ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 134 | |
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| 135 | // ~~~~~[ Internal ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 136 | #endif |
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| 137 | |
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| 138 | // -----[ Methods ]--------------------------------------------------- |
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| 139 | |
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| 140 | #ifdef SYSTEMC |
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| 141 | SC_HAS_PROCESS (Prediction_unit); |
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| 142 | #endif |
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| 143 | public : Prediction_unit |
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| 144 | ( |
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| 145 | #ifdef SYSTEMC |
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| 146 | sc_module_name name, |
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| 147 | #else |
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| 148 | std::string name, |
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| 149 | #endif |
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| 150 | #ifdef STATISTICS |
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| 151 | morpheo::behavioural::Parameters_Statistics * param_statistics, |
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| 152 | #endif |
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| 153 | Parameters * param, |
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[82] | 154 | morpheo::behavioural::Tusage_t usage |
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[78] | 155 | ); |
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| 156 | public : ~Prediction_unit (void); |
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| 157 | |
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| 158 | private : void allocation ( |
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| 159 | #ifdef STATISTICS |
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| 160 | morpheo::behavioural::Parameters_Statistics * param_statistics |
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| 161 | #else |
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| 162 | void |
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| 163 | #endif |
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| 164 | ); |
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| 165 | private : void deallocation (void); |
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| 166 | |
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| 167 | #ifdef SYSTEMC |
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| 168 | # if defined(STATISTICS) or defined(VHDL_TESTBENCH) |
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| 169 | public : void transition (void); |
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| 170 | # endif |
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| 171 | #endif |
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| 172 | |
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| 173 | #if VHDL |
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| 174 | public : void vhdl (void); |
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| 175 | #endif |
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| 176 | |
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| 177 | #ifdef STATISTICS |
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| 178 | public : void statistics_allocation (morpheo::behavioural::Parameters_Statistics * param_statistics); |
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| 179 | public : void statistics_deallocation (void); |
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| 180 | #endif |
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| 181 | #if defined(STATISTICS) or defined(VHDL_TESTBENCH) |
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| 182 | private : void end_cycle (void); |
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| 183 | #endif |
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| 184 | }; |
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| 185 | |
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| 186 | }; // end namespace prediction_unit |
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| 187 | }; // end namespace front_end |
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| 188 | }; // end namespace multi_front_end |
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| 189 | }; // end namespace core |
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| 190 | |
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| 191 | }; // end namespace behavioural |
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| 192 | }; // end namespace morpheo |
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| 193 | |
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| 194 | #endif |
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