gnu/dist/gdb6/sim/common/sim-run.c

   1 /* Generic simulator run.
   2    Copyright (C) 1997 Free Software Foundation, Inc.
   3    Contributed by Cygnus Support.
   4
   5 This file is part of GDB, the GNU debugger.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License along
  18 with this program; if not, write to the Free Software Foundation, Inc.,
  19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 #include "sim-main.h"
  22 #include "sim-assert.h"
  23
  24 /* Generic implementation of sim_engine_run that works within the
  25    sim_engine setjmp/longjmp framework. */
  26
  27 #define IMEM XCONCAT
  28
  29 void
  30 sim_engine_run (SIM_DESC sd,
  31                 int next_cpu_nr, /* ignore */
  32                 int nr_cpus, /* ignore */
  33                 int siggnal) /* ignore */
  34 {
  35   sim_cia cia;
  36   sim_cpu *cpu;
  37   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
  38   cpu = STATE_CPU (sd, 0);
  39   cia = CIA_GET (cpu);
  40   while (1)
  41     {
  42       instruction_word insn = IMEM32 (cia);
  43       cia = idecode_issue (sd, insn, cia);
  44       /* process any events */
  45       if (sim_events_tick (sd))
  46         {
  47           CIA_SET (cpu, cia);
  48           sim_events_process (sd);
  49         }
  50     }
  51 }