1 | #ifdef SYSTEMC |
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2 | /* |
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3 | * $Id: Special_Register_unit_genMealy_spr_access.cpp 98 2008-12-31 10:18:08Z 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_OOO_Engine/OOO_Engine/Special_Register_unit/include/Special_Register_unit.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_ooo_engine { |
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15 | namespace ooo_engine { |
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16 | namespace special_register_unit { |
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17 | |
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18 | |
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19 | #undef FUNCTION |
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20 | #define FUNCTION "Special_Register_unit::genMealy_spr_access" |
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21 | void Special_Register_unit::genMealy_spr_access (void) |
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22 | { |
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23 | log_begin(Special_Register_unit,FUNCTION); |
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24 | log_function(Special_Register_unit,FUNCTION,_name.c_str()); |
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25 | |
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26 | // =================================================================== |
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27 | // =====[ SPR_ACCESS ]================================================ |
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28 | // =================================================================== |
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29 | for (uint32_t i=0; i<_param->_nb_inst_reexecute; i++) |
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30 | // not necessery if have not read enable |
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31 | if (PORT_READ(in_SPR_ACCESS_VAL [i])) |
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32 | { |
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33 | log_printf(TRACE,Special_Register_unit,FUNCTION," * SPR_ACCESS [%d]",i); |
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34 | |
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35 | Tcontext_t front_end_id = (_param->_have_port_front_end_id)?PORT_READ(in_SPR_ACCESS_FRONT_END_ID [i]):0; |
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36 | Tcontext_t context_id = (_param->_have_port_context_id )?PORT_READ(in_SPR_ACCESS_CONTEXT_ID [i]):0; |
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37 | Tspr_address_t num_group = PORT_READ(in_SPR_ACCESS_NUM_GROUP [i]); |
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38 | Tspr_address_t num_reg = PORT_READ(in_SPR_ACCESS_NUM_REG [i]); |
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39 | |
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40 | log_printf(TRACE,Special_Register_unit,FUNCTION," * front_end_id : %d",front_end_id); |
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41 | log_printf(TRACE,Special_Register_unit,FUNCTION," * context_id : %d",context_id ); |
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42 | log_printf(TRACE,Special_Register_unit,FUNCTION," * num_group : %d",num_group ); |
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43 | log_printf(TRACE,Special_Register_unit,FUNCTION," * num_reg : %d",num_reg ); |
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44 | |
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45 | #ifdef DEBUG_TEST |
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46 | if (not _spr_access_mode [front_end_id][context_id]->exist(num_group,num_reg)) |
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47 | msgWarning("Access at an invalid special register (group %d, register %d)\n",num_group,num_reg); |
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48 | #endif |
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49 | |
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50 | SR * sr = static_cast<SR*>(_spr [front_end_id][context_id][GROUP_SYSTEM_AND_CONTROL][SPR_SR]); |
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51 | |
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52 | Tcontrol_t sm = sr->sm ; |
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53 | Tcontrol_t sumra = sr->sumra; |
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54 | |
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55 | Tcontrol_t valid = _spr_access_mode [front_end_id][context_id]->read(spr_address_t(num_group,num_reg), |
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56 | sm, |
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57 | sumra); |
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58 | |
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59 | log_printf(TRACE,Special_Register_unit,FUNCTION," * SM : %d",sm); |
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60 | log_printf(TRACE,Special_Register_unit,FUNCTION," * SUMRA : %d",sumra); |
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61 | log_printf(TRACE,Special_Register_unit,FUNCTION," * valid : %d",valid); |
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62 | |
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63 | // ISA OpenRISC : no action/exception if unauthorised spr access. Also, read 0. |
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64 | // if (not PORT_READ(in_SPR_ACCESS_WEN [i])) |
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65 | // { |
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66 | Tspr_t rdata = (valid)?(_spr[front_end_id][context_id][num_group][num_reg]->read()):0; |
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67 | |
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68 | log_printf(TRACE,Special_Register_unit,FUNCTION," * rdata : %.8x",rdata); |
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69 | |
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70 | PORT_WRITE(out_SPR_ACCESS_RDATA [i], rdata); |
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71 | // } |
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72 | PORT_WRITE(out_SPR_ACCESS_INVALID [i], not valid); |
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73 | } |
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74 | |
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75 | log_end(Special_Register_unit,FUNCTION); |
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76 | }; |
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77 | |
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78 | }; // end namespace special_register_unit |
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79 | }; // end namespace ooo_engine |
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80 | }; // end namespace multi_ooo_engine |
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81 | }; // end namespace core |
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82 | |
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83 | }; // end namespace behavioural |
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84 | }; // end namespace morpheo |
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85 | #endif |
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