1 | #ifdef SYSTEMC |
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2 | /* |
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3 | * $Id: Decod_queue_genMealy_decod_out.cpp 101 2009-01-15 17:19:08Z 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/Decod_unit/Decod_queue/include/Decod_queue.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 decod_unit { |
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17 | namespace decod_queue { |
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18 | |
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19 | |
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20 | #undef FUNCTION |
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21 | #define FUNCTION "Decod_queue::genMealy_decod_out" |
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22 | void Decod_queue::genMealy_decod_out (void) |
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23 | { |
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24 | log_begin(Decod_queue,FUNCTION); |
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25 | log_function(Decod_queue,FUNCTION,_name.c_str()); |
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26 | |
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27 | Tcontrol_t val [_param->_nb_inst_decod]; |
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28 | for (uint32_t i=0; i<_param->_nb_inst_decod; i++) |
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29 | { |
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30 | val [i] = 0; |
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31 | internal_DECOD_OUT_VAL [i] = 0; |
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32 | internal_DECOD_OUT_ACK [i] = 0; |
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33 | } |
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34 | |
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35 | if (not reg_QUEUE->empty()) |
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36 | for (uint32_t i=0; i<_param->_nb_inst_decod; i++) |
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37 | if (reg_QUEUE->front()->_val [i]) |
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38 | { |
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39 | log_printf(TRACE,Decod_queue,FUNCTION,_(" * Queue is not empty, slot [%d] is valid."),i); |
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40 | |
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41 | Tcontext_t context = reg_QUEUE->front()->_context_id [i]; |
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42 | Tdepth_t depth = reg_QUEUE->front()->_depth [i]; |
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43 | Tdepth_t depth_min = (_param->_have_port_depth)?PORT_READ(in_DEPTH_MIN [context]):0; |
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44 | Tdepth_t depth_max = (_param->_have_port_depth)?PORT_READ(in_DEPTH_MAX [context]):0; |
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45 | Tcontrol_t depth_full = PORT_READ(in_DEPTH_FULL[context]); |
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46 | |
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47 | // is a valid instruction ? |
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48 | // If DEPTH_CURRENT : |
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49 | // equal at DEPTH_MIN -> not speculative |
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50 | // not include ]DEPTH_MIN:DEPTH_MAX] -> previous branch miss |
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51 | // include ]DEPTH_MIN:DEPTH_MAX] -> speculative |
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52 | |
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53 | // All case |
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54 | // ....... min ...X... max ....... OK |
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55 | // ....... min ....... max ...X... KO |
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56 | // ...X... min ....... max ....... KO |
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57 | // ....... max ....... min ...X... OK |
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58 | // ...X... max ....... min ....... OK |
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59 | // ....... max ...X... min ....... KO |
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60 | |
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61 | Tcontrol_t is_valid = ((depth == depth_min) or |
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62 | depth_full or |
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63 | ((depth_min <= depth_max)? |
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64 | ((depth >= depth_min) and (depth <=depth_max)): |
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65 | ((depth >= depth_min) or (depth <=depth_max)))); |
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66 | // Tcontrol_t is_valid = ((depth == depth_min) or |
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67 | // ((depth_min < depth_max)? |
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68 | // (depth<=depth_max): |
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69 | // ((depth > depth_min) or (depth <= depth_max)))); |
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70 | // Tcontrol_t is_valid = depth <= depth_max; |
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71 | |
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72 | log_printf(TRACE,Decod_queue,FUNCTION," * is_valid : %d",is_valid); |
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73 | log_printf(TRACE,Decod_queue,FUNCTION," * context : %d",context); |
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74 | log_printf(TRACE,Decod_queue,FUNCTION," * depth : %d",depth); |
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75 | log_printf(TRACE,Decod_queue,FUNCTION," * depth_min : %d",depth_min); |
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76 | log_printf(TRACE,Decod_queue,FUNCTION," * depth_max : %d",depth_max); |
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77 | log_printf(TRACE,Decod_queue,FUNCTION," * depth_full: %d",depth_full); |
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78 | log_printf(TRACE,Decod_queue,FUNCTION," * address : 0x%x (0x%x)",reg_QUEUE->front()->_address[i],reg_QUEUE->front()->_address[i]<<2); |
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79 | internal_DECOD_OUT_VAL [i] = 1; // in all case, val is set (entry is not empty, and instruction is valid) |
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80 | if (is_valid) |
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81 | { |
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82 | val [i] = 1; |
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83 | internal_DECOD_OUT_ACK [i] = PORT_READ(in_DECOD_OUT_ACK [i]); |
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84 | } |
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85 | else |
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86 | { |
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87 | // Cusume the instruction (to erase) |
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88 | internal_DECOD_OUT_ACK [i] = 1; |
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89 | } |
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90 | } |
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91 | |
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92 | for (uint32_t i=0; i<_param->_nb_inst_decod; i++) |
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93 | { |
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94 | log_printf(TRACE,Decod_queue,FUNCTION," * DECOD_OUT_VAL : %d",val [i]); |
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95 | |
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96 | PORT_WRITE(out_DECOD_OUT_VAL [i],val [i]); |
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97 | } |
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98 | |
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99 | log_end(Decod_queue,FUNCTION); |
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100 | }; |
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101 | |
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102 | }; // end namespace decod_queue |
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103 | }; // end namespace decod_unit |
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104 | }; // end namespace front_end |
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105 | }; // end namespace multi_front_end |
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106 | }; // end namespace core |
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107 | |
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108 | }; // end namespace behavioural |
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109 | }; // end namespace morpheo |
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110 | #endif |
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