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jeremybenn |
/* CRIS device support
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Copyright (C) 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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Contributed by Axis Communications.
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This file is part of the GNU simulators.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* Based on the i960 devices.c (for the purposes, the same as all the
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others). */
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#include "sim-main.h"
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#ifdef HAVE_DV_SOCKSER
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#include "dv-sockser.h"
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#endif
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#include "hw-device.h"
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/* Placeholder definition. */
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struct _device { char dummy; } cris_devices;
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void
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device_error (device *me ATTRIBUTE_UNUSED,
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char *message ATTRIBUTE_UNUSED,
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...)
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{
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abort ();
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}
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int
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device_io_read_buffer (device *me ATTRIBUTE_UNUSED,
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void *source ATTRIBUTE_UNUSED,
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int space ATTRIBUTE_UNUSED,
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address_word addr ATTRIBUTE_UNUSED,
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unsigned nr_bytes ATTRIBUTE_UNUSED,
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SIM_DESC sd ATTRIBUTE_UNUSED,
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SIM_CPU *cpu ATTRIBUTE_UNUSED,
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sim_cia cia ATTRIBUTE_UNUSED)
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{
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#if WITH_HW
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return hw_io_read_buffer ((struct hw *) me, source, space, addr, nr_bytes);
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#else
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abort ();
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#endif
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}
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int
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device_io_write_buffer (device *me ATTRIBUTE_UNUSED,
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const void *source,
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int space ATTRIBUTE_UNUSED,
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address_word addr, unsigned nr_bytes,
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SIM_DESC sd, SIM_CPU *cpu, sim_cia cia)
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{
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static const unsigned char ok[] = { 4, 0, 0, 0x90};
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static const unsigned char bad[] = { 8, 0, 0, 0x90};
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if (cris_have_900000xxif)
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{
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if (addr == 0x90000004 && memcmp (source, ok, sizeof ok) == 0)
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return cris_break_13_handler (cpu, 1, 0, 0, 0, 0, 0, 0, cia);
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else if (addr == 0x90000008
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&& memcmp (source, bad, sizeof bad) == 0)
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return cris_break_13_handler (cpu, 1, 34, 0, 0, 0, 0, 0, cia);
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}
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#if WITH_HW
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else
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return hw_io_write_buffer ((struct hw *) me, source, space, addr, nr_bytes);
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#endif
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/* If it wasn't one of those, send an invalid-memory signal. */
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sim_core_signal (sd, cpu, cia, 0, nr_bytes, addr,
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write_transfer, sim_core_unmapped_signal);
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return 0;
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}
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