source: trunk/IPs/systemC/processor/Morpheo/Behavioural/Generic/RegisterFile/RegisterFile_Multi_Banked/src/RegisterFile_Multi_Banked_full_crossbar_genMealy_read.cpp @ 123

#ifdef SYSTEMC
//#if defined(STATISTICS) or defined(VHDL_TESTBENCH)
/*
 * $Id: RegisterFile_Multi_Banked_full_crossbar_genMealy_read.cpp 123 2009-06-08 20:43:30Z rosiere $
 *
 * [ Description ]
 * 
 */

#include "Behavioural/Generic/RegisterFile/RegisterFile_Multi_Banked/include/RegisterFile_Multi_Banked.h"

namespace morpheo                    {
namespace behavioural {
namespace generic {
namespace registerfile {
namespace registerfile_multi_banked {


#undef  FUNCTION
#define FUNCTION "RegisterFile_Multi_Banked::full_crossbar_genMealy_read"
  void RegisterFile_Multi_Banked::full_crossbar_genMealy_read (void)
  {
    log_begin(RegisterFile_Multi_Banked,FUNCTION);
    log_function(RegisterFile_Multi_Banked,FUNCTION,_name.c_str());

    if (PORT_READ(in_NRESET))
      {

    bool read_port_use [_param->_nb_bank][_param->_nb_port_read_by_bank];

    for (uint32_t i=0; i<_param->_nb_bank; i++)
      for (uint32_t j=0; j<_param->_nb_port_read_by_bank; j++)
        read_port_use [i][j]=false;

    for (uint32_t i=0; i<_param->_nb_port_read; i++)
      {
        bool val = PORT_READ(in_READ_VAL    [i]);
        bool ack = false;

        log_printf(TRACE,RegisterFile_Multi_Banked,FUNCTION,"  * read [%d] : %d",i,val);

        if (val == true)
          {
            // Compute the adress of the bank
            Taddress_t address;
            if (_param->_have_port_address == true)
              address = PORT_READ(in_READ_ADDRESS[i]);
            else
              address = 0;

            log_printf(TRACE,RegisterFile_Multi_Banked,FUNCTION,"    * address   : %d",address);
            Taddress_t bank    = address_bank    (address);
            log_printf(TRACE,RegisterFile_Multi_Banked,FUNCTION,"    * bank      : %d",bank   );

            // Search loop
            for (uint32_t j=0; j<_param->_nb_port_read_by_bank; j++)
              {
                // find a unbusy port on this bank
                if (read_port_use[bank][j] == false)
                  {
                    // find !!!
                    read_port_use[bank][j] = true;
                    ack                    = true;
                    
                    Taddress_t num_reg = address_num_reg (address);

                    log_printf(TRACE,RegisterFile_Multi_Banked,FUNCTION,"    * num_reg   : %d",num_reg);
                    log_printf(TRACE,RegisterFile_Multi_Banked,FUNCTION,"    * bank_port : %d",j);

                    Tdata_t    data    = reg_DATA[bank][num_reg];
                    
                    log_printf(TRACE,RegisterFile_Multi_Banked,FUNCTION,"    * data      : %d",data);

                    PORT_WRITE(out_READ_DATA [i], data);

                    break;
                  }
              }
          }

        // Write output
        PORT_WRITE(out_READ_ACK [i], ack);
      }
      }
    else
      for (uint32_t i=0; i<_param->_nb_port_read; i++)
        PORT_WRITE(out_READ_ACK [i], false);

    log_end(RegisterFile_Multi_Banked,FUNCTION);
  };

}; // end namespace registerfile_multi_banked
}; // end namespace registerfile
}; // end namespace generic

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