sim/common/sim-run.c

/* Generic simulator run.
   Copyright (C) 1997-2021 Free Software Foundation, Inc.
   Contributed by Cygnus Support.

This file is part of GDB, the GNU debugger.

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 3 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, see <http://www.gnu.org/licenses/>.  */

/* This must come before any other includes.  */
#include "defs.h"

#include "sim-main.h"
#include "sim-assert.h"

/* Generic implementation of sim_engine_run that works within the
   sim_engine setjmp/longjmp framework. */

#define IMEM XCONCAT

void
sim_engine_run (SIM_DESC sd,
		int next_cpu_nr, /* ignore */
		int nr_cpus, /* ignore */
		int siggnal) /* ignore */
{
  sim_cia cia;
  sim_cpu *cpu;
  SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
  cpu = STATE_CPU (sd, 0);
  cia = CPU_PC_GET (cpu);
  while (1)
    {
      instruction_word insn = IMEM32 (cia);
      cia = idecode_issue (sd, insn, cia);
      /* process any events */
      if (sim_events_tick (sd))
	{
	  CPU_PC_SET (cpu, cia);
	  sim_events_process (sd);
	}
    }
}