sim/common/sim-run.c

   1 /* Generic simulator run.
   2    Copyright (C) 1997-2023 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 /* This must come before any other includes.  */
  21 #include "defs.h"
  22
  23 #include "sim-main.h"
  24 #include "sim-assert.h"
  25
  26 /* Generic implementation of sim_engine_run that works within the
  27    sim_engine setjmp/longjmp framework. */
  28
  29 #define IMEM XCONCAT
  30
  31 void
  32 sim_engine_run (SIM_DESC sd,
  33                 int next_cpu_nr, /* ignore */
  34                 int nr_cpus, /* ignore */
  35                 int siggnal) /* ignore */
  36 {
  37   sim_cia cia;
  38   sim_cpu *cpu;
  39   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
  40   cpu = STATE_CPU (sd, 0);
  41   cia = CPU_PC_GET (cpu);
  42   while (1)
  43     {
  44       instruction_word insn = IMEM32 (cia);
  45       cia = idecode_issue (sd, insn, cia);
  46       /* process any events */
  47       if (sim_events_tick (sd))
  48         {
  49           CPU_PC_SET (cpu, cia);
  50           sim_events_process (sd);
  51         }
  52     }
  53 }