| 1 | #ifdef SYSTEMC |
|---|
| 2 | /* |
|---|
| 3 | * $Id: Special_Register_unit_genMealy_spr_access.cpp 98 2008-12-31 10:18:08Z rosiere $ |
|---|
| 4 | * |
|---|
| 5 | * [ Description ] |
|---|
| 6 | * |
|---|
| 7 | */ |
|---|
| 8 | |
|---|
| 9 | #include "Behavioural/Core/Multi_OOO_Engine/OOO_Engine/Special_Register_unit/include/Special_Register_unit.h" |
|---|
| 10 | |
|---|
| 11 | namespace morpheo { |
|---|
| 12 | namespace behavioural { |
|---|
| 13 | namespace core { |
|---|
| 14 | namespace multi_ooo_engine { |
|---|
| 15 | namespace ooo_engine { |
|---|
| 16 | namespace special_register_unit { |
|---|
| 17 | |
|---|
| 18 | |
|---|
| 19 | #undef FUNCTION |
|---|
| 20 | #define FUNCTION "Special_Register_unit::genMealy_spr_access" |
|---|
| 21 | void Special_Register_unit::genMealy_spr_access (void) |
|---|
| 22 | { |
|---|
| 23 | log_begin(Special_Register_unit,FUNCTION); |
|---|
| 24 | log_function(Special_Register_unit,FUNCTION,_name.c_str()); |
|---|
| 25 | |
|---|
| 26 | // =================================================================== |
|---|
| 27 | // =====[ SPR_ACCESS ]================================================ |
|---|
| 28 | // =================================================================== |
|---|
| 29 | for (uint32_t i=0; i<_param->_nb_inst_reexecute; i++) |
|---|
| 30 | // not necessery if have not read enable |
|---|
| 31 | if (PORT_READ(in_SPR_ACCESS_VAL [i])) |
|---|
| 32 | { |
|---|
| 33 | log_printf(TRACE,Special_Register_unit,FUNCTION," * SPR_ACCESS [%d]",i); |
|---|
| 34 | |
|---|
| 35 | Tcontext_t front_end_id = (_param->_have_port_front_end_id)?PORT_READ(in_SPR_ACCESS_FRONT_END_ID [i]):0; |
|---|
| 36 | Tcontext_t context_id = (_param->_have_port_context_id )?PORT_READ(in_SPR_ACCESS_CONTEXT_ID [i]):0; |
|---|
| 37 | Tspr_address_t num_group = PORT_READ(in_SPR_ACCESS_NUM_GROUP [i]); |
|---|
| 38 | Tspr_address_t num_reg = PORT_READ(in_SPR_ACCESS_NUM_REG [i]); |
|---|
| 39 | |
|---|
| 40 | log_printf(TRACE,Special_Register_unit,FUNCTION," * front_end_id : %d",front_end_id); |
|---|
| 41 | log_printf(TRACE,Special_Register_unit,FUNCTION," * context_id : %d",context_id ); |
|---|
| 42 | log_printf(TRACE,Special_Register_unit,FUNCTION," * num_group : %d",num_group ); |
|---|
| 43 | log_printf(TRACE,Special_Register_unit,FUNCTION," * num_reg : %d",num_reg ); |
|---|
| 44 | |
|---|
| 45 | #ifdef DEBUG_TEST |
|---|
| 46 | if (not _spr_access_mode [front_end_id][context_id]->exist(num_group,num_reg)) |
|---|
| 47 | msgWarning("Access at an invalid special register (group %d, register %d)\n",num_group,num_reg); |
|---|
| 48 | #endif |
|---|
| 49 | |
|---|
| 50 | SR * sr = static_cast<SR*>(_spr [front_end_id][context_id][GROUP_SYSTEM_AND_CONTROL][SPR_SR]); |
|---|
| 51 | |
|---|
| 52 | Tcontrol_t sm = sr->sm ; |
|---|
| 53 | Tcontrol_t sumra = sr->sumra; |
|---|
| 54 | |
|---|
| 55 | Tcontrol_t valid = _spr_access_mode [front_end_id][context_id]->read(spr_address_t(num_group,num_reg), |
|---|
| 56 | sm, |
|---|
| 57 | sumra); |
|---|
| 58 | |
|---|
| 59 | log_printf(TRACE,Special_Register_unit,FUNCTION," * SM : %d",sm); |
|---|
| 60 | log_printf(TRACE,Special_Register_unit,FUNCTION," * SUMRA : %d",sumra); |
|---|
| 61 | log_printf(TRACE,Special_Register_unit,FUNCTION," * valid : %d",valid); |
|---|
| 62 | |
|---|
| 63 | // ISA OpenRISC : no action/exception if unauthorised spr access. Also, read 0. |
|---|
| 64 | // if (not PORT_READ(in_SPR_ACCESS_WEN [i])) |
|---|
| 65 | // { |
|---|
| 66 | Tspr_t rdata = (valid)?(_spr[front_end_id][context_id][num_group][num_reg]->read()):0; |
|---|
| 67 | |
|---|
| 68 | log_printf(TRACE,Special_Register_unit,FUNCTION," * rdata : %.8x",rdata); |
|---|
| 69 | |
|---|
| 70 | PORT_WRITE(out_SPR_ACCESS_RDATA [i], rdata); |
|---|
| 71 | // } |
|---|
| 72 | PORT_WRITE(out_SPR_ACCESS_INVALID [i], not valid); |
|---|
| 73 | } |
|---|
| 74 | |
|---|
| 75 | log_end(Special_Register_unit,FUNCTION); |
|---|
| 76 | }; |
|---|
| 77 | |
|---|
| 78 | }; // end namespace special_register_unit |
|---|
| 79 | }; // end namespace ooo_engine |
|---|
| 80 | }; // end namespace multi_ooo_engine |
|---|
| 81 | }; // end namespace core |
|---|
| 82 | |
|---|
| 83 | }; // end namespace behavioural |
|---|
| 84 | }; // end namespace morpheo |
|---|
| 85 | #endif |
|---|
