1 | #ifdef SYSTEMC |
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2 | /* |
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3 | * $Id: Meta_Predictor_Glue_genMealy_predict.cpp 123 2009-06-08 20:43:30Z 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/Direction/Meta_Predictor/Meta_Predictor_Glue/include/Meta_Predictor_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 direction { |
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18 | namespace meta_predictor { |
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19 | namespace meta_predictor_glue { |
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20 | |
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21 | |
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22 | #undef FUNCTION |
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23 | #define FUNCTION "Meta_Predictor_Glue::genMealy_predict" |
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24 | void Meta_Predictor_Glue::genMealy_predict (void) |
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25 | { |
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26 | log_begin(Meta_Predictor_Glue,FUNCTION); |
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27 | log_function(Meta_Predictor_Glue,FUNCTION,_name.c_str()); |
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28 | |
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29 | if (PORT_READ(in_NRESET)) |
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30 | { |
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31 | for (uint32_t i=0; i<_param->_nb_inst_predict; ++i) |
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32 | { |
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33 | Thistory_t history ; |
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34 | Tcontrol_t direction; |
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35 | |
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36 | switch (_param->_nb_predictor) |
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37 | { |
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38 | case 1 : |
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39 | { |
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40 | history = PORT_READ(in_PREDICT_PREDICTOR_HISTORY [0][i]); |
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41 | direction = PORT_READ(in_PREDICT_PREDICTOR_DIRECTION [0][i]); |
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42 | |
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43 | if (_param->_predictor_update_on_prediction [0]) |
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44 | { |
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45 | PORT_WRITE(out_PREDICT_PREDICTOR_DIRECTION_VAL [0][i],true ); |
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46 | PORT_WRITE(out_PREDICT_PREDICTOR_DIRECTION [0][i],direction); |
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47 | } |
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48 | break; |
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49 | } |
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50 | case 3 : |
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51 | { |
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52 | Thistory_t history_0 = PORT_READ(in_PREDICT_PREDICTOR_HISTORY [0][i]); |
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53 | Thistory_t history_1 = PORT_READ(in_PREDICT_PREDICTOR_HISTORY [1][i]); |
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54 | Thistory_t history_2 = PORT_READ(in_PREDICT_PREDICTOR_HISTORY [2][i]); |
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55 | Tcontrol_t direction_0 = PORT_READ(in_PREDICT_PREDICTOR_DIRECTION [0][i]); |
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56 | Tcontrol_t direction_1 = PORT_READ(in_PREDICT_PREDICTOR_DIRECTION [1][i]); |
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57 | Tcontrol_t direction_2 = PORT_READ(in_PREDICT_PREDICTOR_DIRECTION [2][i]); |
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58 | |
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59 | history = ((history_0 <<_param->_predictor_history_shift [0]) | |
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60 | (history_1 <<_param->_predictor_history_shift [1]) | |
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61 | (history_2 <<_param->_predictor_history_shift [2])); |
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62 | |
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63 | direction = (( direction_2 and direction_1) or |
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64 | (not direction_2 and direction_0)); |
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65 | |
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66 | if (_param->_predictor_update_on_prediction [0]) |
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67 | { |
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68 | PORT_WRITE(out_PREDICT_PREDICTOR_DIRECTION_VAL [0][i],direction_2 == 0); |
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69 | PORT_WRITE(out_PREDICT_PREDICTOR_DIRECTION [0][i],direction); |
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70 | } |
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71 | if (_param->_predictor_update_on_prediction [1]) |
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72 | { |
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73 | PORT_WRITE(out_PREDICT_PREDICTOR_DIRECTION_VAL [1][i],direction_2 == 1); |
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74 | PORT_WRITE(out_PREDICT_PREDICTOR_DIRECTION [1][i],direction); |
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75 | } |
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76 | if (_param->_predictor_update_on_prediction [2]) |
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77 | { |
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78 | PORT_WRITE(out_PREDICT_PREDICTOR_DIRECTION_VAL [2][i],true); |
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79 | PORT_WRITE(out_PREDICT_PREDICTOR_DIRECTION [2][i],direction_2); |
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80 | } |
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81 | |
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82 | break; |
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83 | } |
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84 | default : |
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85 | { |
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86 | break; |
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87 | } |
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88 | } |
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89 | |
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90 | PORT_WRITE(out_PREDICT_HISTORY [i],history ); |
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91 | PORT_WRITE(out_PREDICT_DIRECTION [i],direction); |
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92 | } |
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93 | } |
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94 | // else |
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95 | // { |
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96 | // } |
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97 | |
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98 | log_end(Meta_Predictor_Glue,FUNCTION); |
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99 | }; |
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100 | |
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101 | }; // end namespace meta_predictor_glue |
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102 | }; // end namespace meta_predictor |
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103 | }; // end namespace direction |
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104 | }; // end namespace prediction_unit |
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105 | }; // end namespace front_end |
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106 | }; // end namespace multi_front_end |
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107 | }; // end namespace core |
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108 | |
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109 | }; // end namespace behavioural |
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110 | }; // end namespace morpheo |
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111 | #endif |
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