source: trunk/IPs/systemC/processor/Morpheo/Behavioural/Core/Multi_OOO_Engine/OOO_Engine/Rename_unit/Rename_select/src/Rename_select_transition.cpp @ 78

#ifdef SYSTEMC
/*
 * $Id$
 *
 * [ Description ]
 * 
 */

#include "Behavioural/Core/Multi_OOO_Engine/OOO_Engine/Rename_unit/Rename_select/include/Rename_select.h"

namespace morpheo                    {
namespace behavioural {
namespace core {
namespace multi_ooo_engine {
namespace ooo_engine {
namespace rename_unit {
namespace rename_select {


#undef  FUNCTION
#define FUNCTION "Rename_select::transition"
  void Rename_select::transition (void)
  {
    log_printf(FUNC,Rename_select,FUNCTION,"Begin");

    if (PORT_READ(in_NRESET) == 0)
      {
        select.clear();
        reg_FRONT_END_PRIORITY = 0;
      }
    else
      {
        switch (_param->_priority)
          {
          case PRIORITY_STATIC :
            {
              reg_FRONT_END_PRIORITY = (reg_FRONT_END_PRIORITY+_param->_nb_front_end_select)%_param->_nb_front_end;
              break;
            }
          case PRIORITY_ROUND_ROBIN :
            {
              reg_FRONT_END_PRIORITY = (reg_FRONT_END_PRIORITY+1)%_param->_nb_front_end;
              break;
            }
          default:
            {
              break;
            }
          }

        // flush list
        select.clear();
        
        // Compute next scan order !!!
        switch (_param->_load_balancing)
          {
          case LOAD_BALANCING_BALANCE :
            {
              for (uint32_t j=0; j<_param->_max_nb_inst_decod; j++)
                for (uint32_t i=0; i<_param->_nb_front_end_select; i++)
                  {
                    uint32_t x=(reg_FRONT_END_PRIORITY+i)%_param->_nb_front_end;
                    
                    // Test valid inst_decod
                    if (j < _param->_nb_inst_decod[x])
                      select.push_back(select_t(x,j));
                  }
                  
              break;
            }
          case LOAD_BALANCING_MAXIMUM_FOR_PRIORITY :
            {

              for (uint32_t i=0; i<_param->_nb_front_end_select; i++)
                {
                  uint32_t x=(reg_FRONT_END_PRIORITY+i)%_param->_nb_front_end;
                  
                  for (uint32_t j=0; j<_param->_nb_inst_decod[x]; j++)
                    select.push_back(select_t(x,j));
                }

              break;
            }
          default :
            {
              break;
            }
          }

// #if (DEBUG >= DEBUG_TRACE)
//      log_printf(TRACE,Rename_select,FUNCTION,"Select priority (front_end, inst_decod)");
//      for (std::list<select_t>::iterator it=select.begin();
//           it != select.end();
//           it++)
//        log_printf(TRACE,Rename_select,FUNCTION,"  %d %d",it->_front_end, it->_inst_decod);
// #endif
      }
    
#if defined(STATISTICS) or defined(VHDL_TESTBENCH)
    end_cycle ();
#endif

    log_printf(FUNC,Rename_select,FUNCTION,"End");
  };

}; // end namespace rename_select
}; // end namespace rename_unit
}; // end namespace ooo_engine
}; // end namespace multi_ooo_engine
}; // end namespace core

}; // end namespace behavioural
}; // end namespace morpheo              
#endif