sim/common/sim-reg.c

   1 /* Generic register read/write.
   2    Copyright (C) 1998-2023 Free Software Foundation, Inc.
   3    Contributed by Cygnus Solutions.
   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_fetch_register for simulators using
  27    CPU_REG_FETCH.
  28    The contents of BUF are in target byte order.  */
  29 /* ??? Obviously the interface needs to be extended to handle multiple
  30    cpus.  */
  31
  32 int
  33 sim_fetch_register (SIM_DESC sd, int rn, void *buf, int length)
  34 {
  35   SIM_CPU *cpu = STATE_CPU (sd, 0);
  36
  37   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
  38   return (* CPU_REG_FETCH (cpu)) (cpu, rn, buf, length);
  39 }
  40
  41 /* Generic implementation of sim_store_register for simulators using
  42    CPU_REG_STORE.
  43    The contents of BUF are in target byte order.  */
  44 /* ??? Obviously the interface needs to be extended to handle multiple
  45    cpus.  */
  46
  47 int
  48 sim_store_register (SIM_DESC sd, int rn, const void *buf, int length)
  49 {
  50   SIM_CPU *cpu = STATE_CPU (sd, 0);
  51
  52   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
  53   return (* CPU_REG_STORE (cpu)) (cpu, rn, buf, length);
  54 }