1 | #ifdef SYSTEMC |
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2 | /* |
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3 | * $Id: Decod_queue_genMealy_decod_out.cpp 82 2008-05-01 16:48:45Z 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 | |
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26 | Tcontrol_t val [_param->_nb_inst_decod]; |
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27 | for (uint32_t i=0; i<_param->_nb_inst_decod; i++) |
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28 | { |
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29 | val [i] = 0; |
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30 | internal_DECOD_OUT_VAL [i] = 0; |
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31 | internal_DECOD_OUT_ACK [i] = 0; |
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32 | } |
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33 | |
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34 | if (not reg_QUEUE->empty()) |
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35 | for (uint32_t i=0; i<_param->_nb_inst_decod; i++) |
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36 | if (reg_QUEUE->front()->_val [i]) |
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37 | { |
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38 | log_printf(TRACE,Decod_queue,FUNCTION,_("Queue is not empty, slot [%d] is valid."),i); |
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39 | |
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40 | Tcontext_t context = reg_QUEUE->front()->_context_id [i]; |
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41 | Tdepth_t depth = reg_QUEUE->front()->_depth [i]; |
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42 | Tdepth_t depth_base = (_param->_have_port_depth)?PORT_READ(in_DEPTH_TAIL [context]):0; |
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43 | Tdepth_t depth_offset = (_param->_have_port_depth)?PORT_READ(in_DEPTH_NB_BRANCH [context]):0; |
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44 | Tdepth_t depth_max = depth_base + depth_offset; |
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45 | |
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46 | // is a valid instruction ? |
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47 | // * depth must be lower that depth max |
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48 | Tcontrol_t is_valid = depth <= ((depth>depth_base)?(depth_max):(depth_max%_param->_nb_branch_speculated [context])); |
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49 | |
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50 | log_printf(TRACE,Decod_queue,FUNCTION,_(" * is_valid : %d"),is_valid); |
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51 | |
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52 | internal_DECOD_OUT_VAL [i] = 1; // in all case, val is set (entry is not empty, and instruction is valid) |
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53 | if (is_valid) |
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54 | { |
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55 | val [i] = 1; |
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56 | internal_DECOD_OUT_ACK [i] = PORT_READ(in_DECOD_OUT_ACK [i]); |
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57 | } |
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58 | else |
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59 | { |
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60 | // Cusume the instruction (to erase) |
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61 | internal_DECOD_OUT_ACK [i] = 1; |
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62 | } |
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63 | } |
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64 | |
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65 | for (uint32_t i=0; i<_param->_nb_inst_decod; i++) |
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66 | { |
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67 | PORT_WRITE(out_DECOD_OUT_VAL [i],val [i]); |
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68 | } |
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69 | |
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70 | log_end(Decod_queue,FUNCTION); |
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71 | }; |
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72 | |
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73 | }; // end namespace decod_queue |
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74 | }; // end namespace decod_unit |
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75 | }; // end namespace front_end |
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76 | }; // end namespace multi_front_end |
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77 | }; // end namespace core |
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78 | |
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79 | }; // end namespace behavioural |
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80 | }; // end namespace morpheo |
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81 | #endif |
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