[78] | 1 | #ifdef SYSTEMC |
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| 2 | /* |
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| 3 | * $Id: Branch_Target_Buffer_Glue_genMealy_predict.cpp 108 2009-02-12 11:55:06Z rosiere $ |
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| 4 | * |
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| 5 | * [ Description ] |
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| 6 | * |
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| 7 | */ |
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| 8 | |
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| 9 | #include "Behavioural/Core/Multi_Front_end/Front_end/Prediction_unit/Branch_Target_Buffer/Branch_Target_Buffer_Glue/include/Branch_Target_Buffer_Glue.h" |
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| 10 | |
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| 11 | namespace morpheo { |
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| 12 | namespace behavioural { |
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| 13 | namespace core { |
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| 14 | namespace multi_front_end { |
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| 15 | namespace front_end { |
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| 16 | namespace prediction_unit { |
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| 17 | namespace branch_target_buffer { |
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| 18 | namespace branch_target_buffer_glue { |
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| 19 | |
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| 20 | #undef FUNCTION |
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| 21 | #define FUNCTION "Branch_Target_Buffer_Glue::genMealy_predict" |
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| 22 | void Branch_Target_Buffer_Glue::genMealy_predict (void) |
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| 23 | { |
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[98] | 24 | log_begin(Branch_Target_Buffer_Glue,FUNCTION); |
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| 25 | log_function(Branch_Target_Buffer_Glue,FUNCTION,_name.c_str()); |
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[78] | 26 | |
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| 27 | for (uint32_t i=0; i<_param->_nb_inst_predict; i++) |
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| 28 | { |
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[98] | 29 | log_printf(TRACE,Branch_Target_Buffer_Glue,FUNCTION," * PREDICT [%d]",i); |
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[108] | 30 | |
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| 31 | Tcontrol_t val = PORT_READ(in_PREDICT_VAL [i]); |
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| 32 | Tcontrol_t register_ack = PORT_READ(in_PREDICT_REGISTER_ACK [i]); |
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| 33 | Tcontrol_t sort_val = (_param->_have_port_victim)?PORT_READ(in_PREDICT_SORT_VAL [i]):true; |
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| 34 | Tcontrol_t victim_ack = (_param->_have_port_victim)?PORT_READ(in_PREDICT_VICTIM_ACK [i]):true; |
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| 35 | |
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| 36 | log_printf(TRACE,Branch_Target_Buffer_Glue,FUNCTION," * val : %d",val ); |
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| 37 | log_printf(TRACE,Branch_Target_Buffer_Glue,FUNCTION," * register_ack : %d",register_ack); |
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| 38 | log_printf(TRACE,Branch_Target_Buffer_Glue,FUNCTION," * sort_val : %d",sort_val ); |
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| 39 | log_printf(TRACE,Branch_Target_Buffer_Glue,FUNCTION," * victim_ack : %d",victim_ack ); |
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| 40 | |
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[98] | 41 | Tptr_t index = (_param->_have_port_victim)?PORT_READ(in_PREDICT_SORT_INDEX [i]):0; |
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[108] | 42 | Tcontrol_t hit = // (_param->_have_port_victim)?sort_val: |
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| 43 | PORT_READ(in_PREDICT_REGISTER_HIT [i][index]); |
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[98] | 44 | Tgeneral_data_t address_src = PORT_READ(in_PREDICT_REGISTER_ADDRESS_SRC [i][index]); |
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[78] | 45 | |
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[98] | 46 | log_printf(TRACE,Branch_Target_Buffer_Glue,FUNCTION," * index : %d" ,index ); |
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| 47 | log_printf(TRACE,Branch_Target_Buffer_Glue,FUNCTION," * hit : %d" ,hit ); |
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| 48 | log_printf(TRACE,Branch_Target_Buffer_Glue,FUNCTION," * address_src : %.8x",address_src); |
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| 49 | |
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[78] | 50 | // Multiplexor |
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| 51 | PORT_WRITE(out_PREDICT_HIT [i],hit); |
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[98] | 52 | PORT_WRITE(out_PREDICT_ADDRESS_SRC [i],address_src); |
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[78] | 53 | PORT_WRITE(out_PREDICT_ADDRESS_DEST [i],PORT_READ(in_PREDICT_REGISTER_ADDRESS_DEST [i][index])); |
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| 54 | PORT_WRITE(out_PREDICT_CONDITION [i],PORT_READ(in_PREDICT_REGISTER_CONDITION [i][index])); |
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| 55 | PORT_WRITE(out_PREDICT_LAST_TAKE [i],PORT_READ(in_PREDICT_REGISTER_LAST_TAKE [i][index])); |
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| 56 | PORT_WRITE(out_PREDICT_IS_ACCURATE [i],PORT_READ(in_PREDICT_REGISTER_IS_ACCURATE [i][index])); |
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| 57 | |
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[98] | 58 | PORT_WRITE(out_PREDICT_ACK [i], ( |
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| 59 | // val and |
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| 60 | register_ack and |
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[108] | 61 | // sort_val and |
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[98] | 62 | victim_ack |
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| 63 | )); |
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| 64 | PORT_WRITE(out_PREDICT_REGISTER_VAL [i], ( |
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| 65 | val and |
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| 66 | // register_ack and |
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[108] | 67 | // sort_val and |
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[98] | 68 | victim_ack |
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| 69 | )); |
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[78] | 70 | |
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| 71 | if (_param->_have_port_victim) |
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| 72 | { |
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[98] | 73 | PORT_WRITE(out_PREDICT_VICTIM_VAL [i], ( |
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| 74 | val and |
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[108] | 75 | register_ack // and |
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| 76 | // sort_val and |
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[98] | 77 | // victim_ack |
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| 78 | )); |
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[78] | 79 | PORT_WRITE(out_PREDICT_VICTIM_HIT [i], hit); |
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| 80 | if (not _param->_is_full_associative) |
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[98] | 81 | PORT_WRITE(out_PREDICT_VICTIM_ADDRESS [i], (address_src >> _param->_shift_bank)&_param->_mask_bank); |
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[78] | 82 | PORT_WRITE(out_PREDICT_VICTIM_INDEX [i], index); |
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| 83 | } |
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| 84 | } |
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| 85 | |
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[98] | 86 | log_end(Branch_Target_Buffer_Glue,FUNCTION); |
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[78] | 87 | }; |
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| 88 | |
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| 89 | }; // end namespace branch_target_buffer_glue |
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| 90 | }; // end namespace branch_target_buffer |
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| 91 | }; // end namespace prediction_unit |
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| 92 | }; // end namespace front_end |
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| 93 | }; // end namespace multi_front_end |
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| 94 | }; // end namespace core |
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| 95 | }; // end namespace behavioural |
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| 96 | }; // end namespace morpheo |
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| 97 | #endif |
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