[78] | 1 | #ifndef morpheo_behavioural_core_multi_front_end_front_end_prediction_unit_return_address_stack_Return_Address_Stack_h |
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| 2 | #define morpheo_behavioural_core_multi_front_end_front_end_prediction_unit_return_address_stack_Return_Address_Stack_h |
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| 3 | |
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| 4 | /* |
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| 5 | * $Id: Return_Address_Stack.h 131 2009-07-08 18:40:08Z 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/Return_Address_Stack/include/Types.h" |
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| 20 | #include "Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Return_Address_Stack/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 return_address_stack { |
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| 38 | |
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| 39 | |
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| 40 | class Return_Address_Stack |
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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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| 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_OUT(Tcontrol_t) ** out_PREDICT_HIT ; //[nb_inst_predict] |
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| 69 | public : SC_IN (Tcontrol_t) ** in_PREDICT_PUSH ; //[nb_inst_predict] 1 = push, else pop |
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| 70 | public : SC_IN (Taddress_t) ** in_PREDICT_ADDRESS_PUSH ; //[nb_inst_predict] |
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| 71 | public : SC_OUT(Taddress_t) ** out_PREDICT_ADDRESS_POP ; //[nb_inst_predict] if pop:addr_top else addr_old |
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| 72 | public : SC_OUT(Tptr_t ) ** out_PREDICT_INDEX ; //[nb_inst_predict] |
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| 73 | |
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| 74 | // ~~~~~[ Interface : "decod" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 75 | public : SC_IN (Tcontrol_t) ** in_DECOD_VAL ; //[nb_inst_decod] |
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| 76 | public : SC_OUT(Tcontrol_t) ** out_DECOD_ACK ; //[nb_inst_decod] |
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| 77 | public : SC_IN (Tcontext_t) ** in_DECOD_CONTEXT_ID ; //[nb_inst_decod] |
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| 78 | public : SC_OUT(Tcontrol_t) ** out_DECOD_HIT ; //[nb_inst_decod] |
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| 79 | public : SC_IN (Tcontrol_t) ** in_DECOD_PUSH ; //[nb_inst_decod] 1 = push, else pop |
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| 80 | public : SC_IN (Taddress_t) ** in_DECOD_ADDRESS_PUSH ; //[nb_inst_decod] |
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| 81 | public : SC_OUT(Taddress_t) ** out_DECOD_ADDRESS_POP ; //[nb_inst_decod] if pop:addr_top else addr_old |
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| 82 | public : SC_OUT(Tptr_t ) ** out_DECOD_INDEX ; //[nb_inst_decod] |
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| 83 | public : SC_IN (Tcontrol_t) ** in_DECOD_MISS_PREDICTION ; //[nb_inst_decod] predict at stage 1 is a miss |
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| 84 | |
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| 85 | // ~~~~~[ Interface : "update" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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[81] | 86 | public : SC_IN (Tcontrol_t) ** in_UPDATE_VAL ; //[nb_inst_update] |
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| 87 | public : SC_OUT(Tcontrol_t) ** out_UPDATE_ACK ; //[nb_inst_update] |
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| 88 | public : SC_IN (Tcontext_t) ** in_UPDATE_CONTEXT_ID ; //[nb_inst_update] |
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| 89 | public : SC_IN (Tcontrol_t) ** in_UPDATE_PUSH ; //[nb_inst_update] 1 = push, else pop |
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[100] | 90 | public : SC_IN (Tcontrol_t) ** in_UPDATE_FLUSH ; //[nb_inst_update] |
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[81] | 91 | public : SC_IN (Taddress_t) ** in_UPDATE_ADDRESS ; //[nb_inst_update] |
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| 92 | public : SC_IN (Tptr_t ) ** in_UPDATE_INDEX ; //[nb_inst_update] |
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| 93 | public : SC_IN (Tcontrol_t) ** in_UPDATE_MISS_PREDICTION ; //[nb_inst_update] |
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| 94 | public : SC_IN (Tcontrol_t) ** in_UPDATE_PREDICTION_IFETCH; //[nb_inst_update] // prediction only ifetch |
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[78] | 95 | |
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| 96 | // ~~~~~[ Component ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 97 | |
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| 98 | // ~~~~~[ Register ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 99 | private : ras_entry_t ** reg_stack ; //[nb_context][size_queue] |
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| 100 | private : Tptr_t * reg_TOP ; //[nb_context] |
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[100] | 101 | //private : Tptr_t * reg_BOTTOM ; //[nb_context] |
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[81] | 102 | private : Tptr_t * reg_NB_ELT ; //[nb_context] |
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[78] | 103 | private : Tptr_t * reg_PREDICT_TOP ; //[nb_context] |
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[100] | 104 | //private : Tptr_t * reg_PREDICT_BOTTOM; //[nb_context] |
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[81] | 105 | private : Tptr_t * reg_PREDICT_NB_ELT; //[nb_context] |
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[78] | 106 | |
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| 107 | // ~~~~~[ Internal ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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| 108 | public : Tcontrol_t * internal_PREDICT_ACK; //[nb_inst_predict] |
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| 109 | public : Tcontrol_t * internal_PREDICT_HIT; //[nb_inst_predict] |
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| 110 | public : Tcontrol_t * internal_DECOD_ACK ; //[nb_inst_decod ] |
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| 111 | public : Tcontrol_t * internal_DECOD_HIT ; //[nb_inst_decod ] |
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| 112 | public : Tcontrol_t * internal_UPDATE_ACK ; //[nb_inst_update ] |
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| 113 | #endif |
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| 114 | |
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| 115 | // -----[ Methods ]--------------------------------------------------- |
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| 116 | |
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| 117 | #ifdef SYSTEMC |
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| 118 | SC_HAS_PROCESS (Return_Address_Stack); |
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| 119 | #endif |
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| 120 | public : Return_Address_Stack |
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| 121 | ( |
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| 122 | #ifdef SYSTEMC |
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| 123 | sc_module_name name, |
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| 124 | #else |
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| 125 | std::string name, |
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| 126 | #endif |
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| 127 | #ifdef STATISTICS |
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| 128 | morpheo::behavioural::Parameters_Statistics * param_statistics, |
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| 129 | #endif |
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| 130 | Parameters * param, |
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[82] | 131 | morpheo::behavioural::Tusage_t usage |
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[78] | 132 | ); |
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| 133 | public : ~Return_Address_Stack (void); |
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| 134 | |
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| 135 | private : void allocation ( |
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| 136 | #ifdef STATISTICS |
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| 137 | morpheo::behavioural::Parameters_Statistics * param_statistics |
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| 138 | #else |
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| 139 | void |
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| 140 | #endif |
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| 141 | ); |
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| 142 | private : void deallocation (void); |
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| 143 | |
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| 144 | #ifdef SYSTEMC |
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[131] | 145 | public : void constant (void); |
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[78] | 146 | public : void transition (void); |
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| 147 | public : void genMealy_predict (void); |
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[81] | 148 | public : void genMealy_decod (void); |
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[78] | 149 | // public : void genMealy_update (void); |
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| 150 | #endif |
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| 151 | |
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| 152 | #if VHDL |
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| 153 | public : void vhdl (void); |
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| 154 | private : void vhdl_declaration (Vhdl * & vhdl); |
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| 155 | private : void vhdl_body (Vhdl * & vhdl); |
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| 156 | #endif |
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| 157 | |
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| 158 | #ifdef STATISTICS |
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| 159 | public : void statistics_allocation (morpheo::behavioural::Parameters_Statistics * param_statistics); |
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| 160 | public : void statistics_deallocation (void); |
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| 161 | #endif |
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| 162 | #if defined(STATISTICS) or defined(VHDL_TESTBENCH) |
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| 163 | private : void end_cycle (void); |
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| 164 | #endif |
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| 165 | }; |
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| 166 | |
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| 167 | }; // end namespace return_address_stack |
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| 168 | }; // end namespace prediction_unit |
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| 169 | }; // end namespace front_end |
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| 170 | }; // end namespace multi_front_end |
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| 171 | }; // end namespace core |
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| 172 | |
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| 173 | }; // end namespace behavioural |
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| 174 | }; // end namespace morpheo |
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| 175 | |
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| 176 | #endif |
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