#ifdef VHDL /* * $Id$ * * [ Description ] * */ #include "Behavioural/Stage_1_Ifetch/Predictor/Meta_Predictor/Meta_Predictor_Glue/include/Meta_Predictor_Glue.h" namespace morpheo { namespace behavioural { namespace stage_1_ifetch { namespace predictor { namespace meta_predictor { namespace meta_predictor_glue { void Meta_Predictor_Glue::vhdl_body (Vhdl & vhdl) { log_printf(FUNC,Meta_Predictor_Glue,"vhdl_body","Begin"); vhdl.set_body (""); vhdl.set_body (" -- predict"); for (uint32_t i=0; i<_param._nb_prediction; i++) { string meta_predictor_ack = (_param._have_meta_predictor==true)?("in_PREDICT_PREDICTOR_0_ACK_"+toString(i)+" and in_PREDICT_PREDICTOR_1_ACK_"+toString(i)):"'1'"; vhdl.set_body ("out_PREDICT_ACK_"+toString(i)+" <= "+meta_predictor_ack+" and "+"in_PREDICT_PREDICTOR_2_ACK_"+toString(i)+";"); uint32_t index=_param._size_history; if (_param._predictor_2_have_pht) { vhdl.set_body ("out_PREDICT_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_2_pht_size_counter)+" <= in_PREDICT_PREDICTOR_2_PHT_HISTORY_"+toString(i)+";"); index-= _param._predictor_2_pht_size_counter; } if (_param._predictor_2_have_bht) { vhdl.set_body ("out_PREDICT_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_2_bht_size_shifter)+" <= in_PREDICT_PREDICTOR_2_BHT_HISTORY_"+toString(i)+";"); index-= _param._predictor_2_bht_size_shifter; } if (_param._have_meta_predictor) { if (_param._predictor_1_have_pht) { vhdl.set_body ("out_PREDICT_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_1_pht_size_counter)+" <= in_PREDICT_PREDICTOR_1_PHT_HISTORY_"+toString(i)+";"); index-= _param._predictor_1_pht_size_counter; } if (_param._predictor_1_have_bht) { vhdl.set_body ("out_PREDICT_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_1_bht_size_shifter)+" <= in_PREDICT_PREDICTOR_1_BHT_HISTORY_"+toString(i)+";"); index-= _param._predictor_1_bht_size_shifter; } if (_param._predictor_0_have_pht) { vhdl.set_body ("out_PREDICT_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_0_pht_size_counter)+" <= in_PREDICT_PREDICTOR_0_PHT_HISTORY_"+toString(i)+";"); index-= _param._predictor_0_pht_size_counter; } if (_param._predictor_0_have_bht) { vhdl.set_body ("out_PREDICT_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_0_bht_size_shifter)+" <= in_PREDICT_PREDICTOR_0_BHT_HISTORY_"+toString(i)+";"); index-= _param._predictor_0_bht_size_shifter; } } // direction of prediction vhdl.set_body (""); if (_param._have_meta_predictor) vhdl.set_body ("out_PREDICT_DIRECTION_"+toString(i)+" <= predictor_0_direction_"+toString(i)+" when predictor_2_direction_"+toString(i)+"='0' else predictor_1_direction_"+toString(i)+";"); else vhdl.set_body ("out_PREDICT_DIRECTION_"+toString(i)+" <= predictor_2_direction_"+toString(i)+";"); } // Interface - branch_complete vhdl.set_body (""); vhdl.set_body (" -- branch_complete"); for (uint32_t i=0; i<_param._nb_branch_complete; i++) { string meta_predictor_ack = (_param._have_meta_predictor==true)?("in_BRANCH_COMPLETE_PREDICTOR_0_ACK_"+toString(i)+" and in_BRANCH_COMPLETE_PREDICTOR_1_ACK_"+toString(i)):"'1'"; vhdl.set_body ("out_BRANCH_COMPLETE_ACK_"+toString(i)+" <= "+meta_predictor_ack+" and "+"in_BRANCH_COMPLETE_PREDICTOR_2_ACK_"+toString(i)+";"); uint32_t index=_param._size_history; if (_param._predictor_2_have_pht) { vhdl.set_body ("out_BRANCH_COMPLETE_PREDICTOR_2_PHT_HISTORY_"+toString(i)+" <= in_BRANCH_COMPLETE_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_2_pht_size_counter)+";"); index-= _param._predictor_2_pht_size_counter; } if (_param._predictor_2_have_bht) { vhdl.set_body ("out_BRANCH_COMPLETE_PREDICTOR_2_BHT_HISTORY_"+toString(i)+" <= in_BRANCH_COMPLETE_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_2_bht_size_shifter)+";"); index-= _param._predictor_2_bht_size_shifter; } if (_param._have_meta_predictor) { if (_param._predictor_1_have_pht) { vhdl.set_body ("out_BRANCH_COMPLETE_PREDICTOR_1_PHT_HISTORY_"+toString(i)+" <= in_BRANCH_COMPLETE_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_1_pht_size_counter)+";"); index-= _param._predictor_1_pht_size_counter; } if (_param._predictor_1_have_bht) { vhdl.set_body ("out_BRANCH_COMPLETE_PREDICTOR_1_BHT_HISTORY_"+toString(i)+" <= in_BRANCH_COMPLETE_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_1_bht_size_shifter)+";"); index-= _param._predictor_1_bht_size_shifter; } if (_param._predictor_0_have_pht) { vhdl.set_body ("out_BRANCH_COMPLETE_PREDICTOR_0_PHT_HISTORY_"+toString(i)+" <= in_BRANCH_COMPLETE_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_0_pht_size_counter)+";"); index-= _param._predictor_0_pht_size_counter; } if (_param._predictor_0_have_bht) { vhdl.set_body ("out_BRANCH_COMPLETE_PREDICTOR_0_BHT_HISTORY_"+toString(i)+" <= in_BRANCH_COMPLETE_HISTORY_"+toString(i)+std_logic_range(index-1,index-_param._predictor_0_bht_size_shifter)+";"); index-= _param._predictor_0_bht_size_shifter; } } } log_printf(FUNC,Meta_Predictor_Glue,"vhdl_body","End"); }; }; // end namespace meta_predictor_glue }; // end namespace meta_predictor }; // end namespace predictor }; // end namespace stage_1_ifetch }; // end namespace behavioural }; // end namespace morpheo #endif