source: trunk/IPs/systemC/processor/Morpheo/Behavioural/Core/Multi_Execute_loop/Execute_loop/Multi_Read_unit/Read_unit/Read_queue/src/Read_queue_genMealy_read_queue_out_gpr.cpp @ 88

#ifdef SYSTEMC
/*
 * $Id: Read_queue_genMealy_read_queue_out_gpr.cpp 88 2008-12-10 18:31:39Z rosiere $
 *
 * [ Description ]
 * 
 */

#include "Behavioural/Core/Multi_Execute_loop/Execute_loop/Multi_Read_unit/Read_unit/Read_queue/include/Read_queue.h"

namespace morpheo {
namespace behavioural {
namespace core {
namespace multi_execute_loop {
namespace execute_loop {
namespace multi_read_unit {
namespace read_unit {
namespace read_queue {

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

    internal_READ_QUEUE_OUT_DATA_RA_VAL = (// Previous value
                                           _queue_head->_data_ra_val or
                                           // Test if have already access at the registerfile
                                           (_queue_head->_read_ra_val           and
                                            PORT_READ(in_GPR_READ_ACK      [0]) and
                                            PORT_READ(in_GPR_READ_DATA_VAL [0]))
                                           );

    log_printf(TRACE,Read_queue,FUNCTION,"  * internal_READ_QUEUE_OUT_DATA_RA_VAL   : %d",internal_READ_QUEUE_OUT_DATA_RA_VAL);
    log_printf(TRACE,Read_queue,FUNCTION,"    * _queue_head->_data_ra_val           : %d",_queue_head->_data_ra_val);
    log_printf(TRACE,Read_queue,FUNCTION,"    * _queue_head->_read_ra_val           : %d",_queue_head->_read_ra_val);
    log_printf(TRACE,Read_queue,FUNCTION,"    * in_GPR_READ_ACK      [0]            : %d",PORT_READ(in_GPR_READ_ACK      [0]));
    log_printf(TRACE,Read_queue,FUNCTION,"    * in_GPR_READ_DATA_VAL [0]            : %d",PORT_READ(in_GPR_READ_DATA_VAL [0]));

    internal_READ_QUEUE_OUT_DATA_RB_VAL = (_queue_head->_data_rb_val or
                                           (_queue_head->_read_rb_val           and
                                            PORT_READ(in_GPR_READ_ACK      [1]) and
                                            PORT_READ(in_GPR_READ_DATA_VAL [1]))
                                           );

    log_printf(TRACE,Read_queue,FUNCTION,"  * internal_READ_QUEUE_OUT_DATA_RB_VAL   : %d",internal_READ_QUEUE_OUT_DATA_RB_VAL);
    log_printf(TRACE,Read_queue,FUNCTION,"    * _queue_head->_data_rb_val           : %d",_queue_head->_data_rb_val);
    log_printf(TRACE,Read_queue,FUNCTION,"    * _queue_head->_read_rb_val           : %d",_queue_head->_read_rb_val);
    log_printf(TRACE,Read_queue,FUNCTION,"    * in_GPR_READ_ACK      [1]            : %d",PORT_READ(in_GPR_READ_ACK      [1]));
    log_printf(TRACE,Read_queue,FUNCTION,"    * in_GPR_READ_DATA_VAL [1]            : %d",PORT_READ(in_GPR_READ_DATA_VAL [1]));
               
    
    internal_READ_QUEUE_OUT_DATA_RA     = (// Test if have an previous access
                                           (_queue_head->_data_ra_val)?
                                           // if precious access, take previous data
                                           _queue_head->_data_ra:
                                           // else, take the read_data (don't test the validity of data)
                                           PORT_READ(in_GPR_READ_DATA [0]));
    
    internal_READ_QUEUE_OUT_DATA_RB     = ((_queue_head->_data_rb_val)?
                                           _queue_head->_data_rb:
                                           PORT_READ(in_GPR_READ_DATA [1]));
    
    // Test all bypass
    for (uint32_t i=0; i<_param->_nb_gpr_write ; i++)
      {
        bool cmp;

        if (_param->_have_port_ooo_engine_id)
          cmp = (PORT_READ (in_GPR_WRITE_OOO_ENGINE_ID [i]) == _queue_head->_ooo_engine_id);
        else
          cmp = true;

        // Test if this bypass is valid
        if ( (PORT_READ (in_GPR_WRITE_VAL [i]) == 1) and cmp)
          {
            Tgeneral_address_t gpr_write_num_reg = PORT_READ(in_GPR_WRITE_NUM_REG [i]);
            Tgeneral_data_t    gpr_write_data    = PORT_READ(in_GPR_WRITE_DATA    [i]);
            
            if (_queue_head->_num_reg_ra == gpr_write_num_reg)
              {
                log_printf(TRACE,Read_queue,FUNCTION,"  * internal_READ_QUEUE_OUT_DATA_RA_VAL   - bypass hit (%d)",i);

                internal_READ_QUEUE_OUT_DATA_RA_VAL = 1;
#ifdef SYSTEMC_VHDL_COMPATIBILITY
                if (_queue_head->_read_ra == 1)
#endif
                internal_READ_QUEUE_OUT_DATA_RA     = gpr_write_data;
              }
            if (_queue_head->_num_reg_rb == gpr_write_num_reg)
              {
                log_printf(TRACE,Read_queue,FUNCTION,"  * internal_READ_QUEUE_OUT_DATA_RB_VAL   - bypass hit (%d)",i);
                internal_READ_QUEUE_OUT_DATA_RB_VAL = 1;
#ifdef SYSTEMC_VHDL_COMPATIBILITY
                if (_queue_head->_read_rb == 1)
#endif
                internal_READ_QUEUE_OUT_DATA_RB     = gpr_write_data;
              }
          }
      }

    // Affectation out port
    PORT_WRITE(out_READ_QUEUE_OUT_DATA_RA_VAL,internal_READ_QUEUE_OUT_DATA_RA_VAL);
    PORT_WRITE(out_READ_QUEUE_OUT_DATA_RB_VAL,internal_READ_QUEUE_OUT_DATA_RB_VAL);
    PORT_WRITE(out_READ_QUEUE_OUT_DATA_RA    ,internal_READ_QUEUE_OUT_DATA_RA    );
    PORT_WRITE(out_READ_QUEUE_OUT_DATA_RB    ,internal_READ_QUEUE_OUT_DATA_RB    );

    log_end(Read_queue,FUNCTION);
  };

}; // end namespace read_queue
}; // end namespace read_unit
}; // end namespace multi_read_unit
}; // end namespace execute_loop
}; // end namespace multi_execute_loop
}; // end namespace core
}; // end namespace behavioural
}; // end namespace morpheo              
#endif