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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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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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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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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113 | public : SC_OUT(Tcontrol_t ) ** out_BRANCH_EVENT_ADDRESS_DEST_VAL ; //[nb_context] |
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114 | public : SC_OUT(Taddress_t ) ** out_BRANCH_EVENT_ADDRESS_DEST ; //[nb_context] |
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115 | |
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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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121 | // ~~~~~[ Interface : "depth" ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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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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125 | |
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126 | // ~~~~~[ Component ]~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ |
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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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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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154 | morpheo::behavioural::Tusage_t usage |
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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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