Subversion Repositories openrisc_2011-10-31

/*  This file is part of the program psim.

    Copyright (C) 1998, Andrew Cagney <cagney@highland.com.au>

    This program is free software; you can redistribute it and/or modify

    it under the terms of the GNU General Public License as published by

    the Free Software Foundation; either version 2 of the License, or

    (at your option) any later version.

    This program is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License

    along with this program; if not, write to the Free Software

    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

    */

#include "sim-main.h"

#include "m16_idecode.h"

#include "m32_idecode.h"

#include "bfd.h"

#define SD sd

#define CPU cpu

void

sim_engine_run (SIM_DESC sd,

                int next_cpu_nr,

                int nr_cpus, /* ignore */

                int siggnal) /* ignore */

{

  sim_cpu *cpu = STATE_CPU (sd, next_cpu_nr);

  address_word cia = CIA_GET (cpu);

  while (1)

    {

      address_word nia;

#if defined (ENGINE_ISSUE_PREFIX_HOOK)

      ENGINE_ISSUE_PREFIX_HOOK ();

#endif

      if ((cia & 1))

        {

          m16_instruction_word instruction_0 = IMEM16 (cia);

          nia = m16_idecode_issue (sd, instruction_0, cia);

        }

      else

        {

          m32_instruction_word instruction_0 = IMEM32 (cia);

          nia = m32_idecode_issue (sd, instruction_0, cia);

        }

#if defined (ENGINE_ISSUE_POSTFIX_HOOK)

      ENGINE_ISSUE_POSTFIX_HOOK ();

#endif

      /* Update the instruction address */

      cia = nia;

      /* process any events */

      if (sim_events_tick (sd))

        {

          CIA_SET (CPU, cia);

          sim_events_process (sd);

          cia = CIA_GET (CPU);

        }

    }

}