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

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