sim/common/sim-reg.c

   1 /* Generic register read/write.
   2    Copyright (C) 1998-2019 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 #include "sim-main.h"
  21 #include "sim-assert.h"
  22
  23 /* Generic implementation of sim_fetch_register for simulators using
  24    CPU_REG_FETCH.
  25    The contents of BUF are in target byte order.  */
  26 /* ??? Obviously the interface needs to be extended to handle multiple
  27    cpus.  */
  28
  29 int
  30 sim_fetch_register (SIM_DESC sd, int rn, unsigned char *buf, int length)
  31 {
  32   SIM_CPU *cpu = STATE_CPU (sd, 0);
  33
  34   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
  35   return (* CPU_REG_FETCH (cpu)) (cpu, rn, buf, length);
  36 }
  37
  38 /* Generic implementation of sim_store_register for simulators using
  39    CPU_REG_STORE.
  40    The contents of BUF are in target byte order.  */
  41 /* ??? Obviously the interface needs to be extended to handle multiple
  42    cpus.  */
  43
  44 int
  45 sim_store_register (SIM_DESC sd, int rn, unsigned char *buf, int length)
  46 {
  47   SIM_CPU *cpu = STATE_CPU (sd, 0);
  48
  49   SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER);
  50   return (* CPU_REG_STORE (cpu)) (cpu, rn, buf, length);
  51 }