sim/common/sim-run.c

   1 /* Generic simulator run.
   2    Copyright (C) 1997-2019 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 3 of the License, or
  10 (at your option) 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
  18 along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #include "sim-main.h"
  21 #include "sim-assert.h"
  22
  23 /* Generic implementation of sim_engine_run that works within the
  24    sim_engine setjmp/longjmp framework. */
  25
  26 #define IMEM XCONCAT
  27
  28 void
  29 sim_engine_run (SIM_DESC sd,
  30                 int next_cpu_nr, /* ignore */
  31                 int nr_cpus, /* ignore */
  32                 int siggnal) /* ignore */
  33 {
  34   sim_cia cia;
  35   sim_cpu *cpu;
  36   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
  37   cpu = STATE_CPU (sd, 0);
  38   cia = CPU_PC_GET (cpu);
  39   while (1)
  40     {
  41       instruction_word insn = IMEM32 (cia);
  42       cia = idecode_issue (sd, insn, cia);
  43       /* process any events */
  44       if (sim_events_tick (sd))
  45         {
  46           CPU_PC_SET (cpu, cia);
  47           sim_events_process (sd);
  48         }
  49     }
  50 }