sim/common/sim-n-core.h

   1 /*  This file is part of the program psim.
   2
   3     Copyright (C) 1994-1997, Andrew Cagney <cagney@highland.com.au>
   4
   5     This program is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18
  19     */
  20
  21
  22 #ifndef N
  23 #error "N must be #defined"
  24 #endif
  25
  26 /* NOTE: see end of file for #undef of these macros */
  27 #define unsigned_N XCONCAT2(unsigned_,N)
  28 #define T2H_N XCONCAT2(T2H_,N)
  29 #define H2T_N XCONCAT2(H2T_,N)
  30
  31 #define core_map_read_N XCONCAT2(core_map_read_,N)
  32 #define core_map_write_N XCONCAT2(core_map_write_,N)
  33
  34
  35 INLINE_SIM_CORE(unsigned_N)
  36 core_map_read_N(engine *system,
  37                 core_maps map,
  38                 unsigned_word addr)
  39 {
  40   core_mapping *mapping = core_map_find_mapping(system, map,
  41                                                 addr,
  42                                                 sizeof(unsigned_N),
  43                                                 1); /*abort*/
  44 #if (WITH_DEVICES)
  45   if (WITH_CALLBACK_MEMORY && mapping->device != NULL) {
  46     unsigned_N data;
  47     if (device_io_read_buffer(mapping->device,
  48                               &data,
  49                               mapping->space,
  50                               addr,
  51                               sizeof(unsigned_N)) != sizeof(unsigned_N))
  52       device_error(mapping->device, "internal error - core_read_N() - io_read_buffer should not fail");
  53     return T2H_N(data);
  54   }
  55   else
  56 #endif
  57     return T2H_N(*(unsigned_N*)core_translate(mapping, addr));
  58 }
  59
  60
  61
  62 INLINE_SIM_CORE(void)
  63 core_map_write_N(engine *system,
  64                  core_maps map,
  65                  unsigned_word addr,
  66                  unsigned_N val)
  67 {
  68   core_mapping *mapping = core_map_find_mapping(system, map,
  69                                                 addr,
  70                                                 sizeof(unsigned_N),
  71                                                 1); /*abort*/
  72 #if (WITH_DEVICES)
  73   if (WITH_CALLBACK_MEMORY && mapping->device != NULL) {
  74     unsigned_N data = H2T_N(val);
  75     if (device_io_write_buffer(mapping->device,
  76                                &data,
  77                                mapping->space,
  78                                addr,
  79                                sizeof(unsigned_N), /* nr_bytes */
  80                                processor,
  81                                cia) != sizeof(unsigned_N))
  82       device_error(mapping->device, "internal error - core_write_N() - io_write_buffer should not fail");
  83   }
  84   else
  85 #endif
  86     *(unsigned_N*)core_translate(mapping, addr) = H2T_N(val);
  87 }
  88
  89
  90 /* NOTE: see start of file for #define of these macros */
  91 #undef unsigned_N
  92 #undef T2H_N
  93 #undef H2T_N
  94 #undef core_map_read_N
  95 #undef core_map_write_N