92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
|
/* Handle 0x900000xx addresses in the sim.
|
||
|
|
|
||
|
|
Copyright (C) 2004-2015 Free Software Foundation, Inc.
|
||
|
|
Contributed by Axis Communications.
|
||
|
|
|
||
|
|
This file is part of the GNU simulators.
|
||
|
|
|
||
|
|
This program is free software; you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU General Public License as published by
|
||
|
|
the Free Software Foundation; either version 3 of the License, or
|
||
|
|
(at your option) any later version.
|
||
|
|
|
||
|
|
This program is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
GNU General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
#include "sim-main.h"
|
||
|
|
#include "hw-main.h"
|
||
|
|
|
||
|
|
struct cris_900000xx_hw
|
||
|
|
{
|
||
|
|
};
|
||
|
|
|
||
|
|
static unsigned
|
||
|
|
cris_io_write_buffer (struct hw *me, const void *source,
|
||
|
|
int space, address_word addr, unsigned nr_bytes)
|
||
|
|
{
|
||
|
|
static const unsigned char ok[] = { 4, 0, 0, 0x90};
|
||
|
|
static const unsigned char bad[] = { 8, 0, 0, 0x90};
|
||
|
|
SIM_CPU *cpu = hw_system_cpu (me);
|
||
|
|
SIM_DESC sd = CPU_STATE (cpu);
|
||
|
|
sim_cia cia = CPU_PC_GET (cpu);
|
||
|
|
|
||
|
|
if (addr == 0x90000004 && memcmp (source, ok, sizeof ok) == 0)
|
||
|
|
return cris_break_13_handler (cpu, 1, 0, 0, 0, 0, 0, 0, cia);
|
||
|
|
else if (addr == 0x90000008
|
||
|
|
&& memcmp (source, bad, sizeof bad) == 0)
|
||
|
|
return cris_break_13_handler (cpu, 1, 34, 0, 0, 0, 0, 0, cia);
|
||
|
|
|
||
|
|
/* If it wasn't one of those, send an invalid-memory signal. */
|
||
|
|
sim_core_signal (sd, cpu, cia, 0, nr_bytes, addr,
|
||
|
|
write_transfer, sim_core_unmapped_signal);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* Instance initializer function. */
|
||
|
|
|
||
|
|
static void
|
||
|
|
attach_regs (struct hw *me, struct cris_900000xx_hw *hw)
|
||
|
|
{
|
||
|
|
address_word attach_address;
|
||
|
|
int attach_space;
|
||
|
|
unsigned attach_size;
|
||
|
|
reg_property_spec reg;
|
||
|
|
|
||
|
|
if (hw_find_property (me, "reg") == NULL)
|
||
|
|
hw_abort (me, "Missing \"reg\" property");
|
||
|
|
|
||
|
|
if (!hw_find_reg_array_property (me, "reg", 0, ®))
|
||
|
|
hw_abort (me, "\"reg\" property must contain three addr/size entries");
|
||
|
|
|
||
|
|
hw_unit_address_to_attach_address (hw_parent (me),
|
||
|
|
®.address,
|
||
|
|
&attach_space, &attach_address, me);
|
||
|
|
hw_unit_size_to_attach_size (hw_parent (me), ®.size, &attach_size, me);
|
||
|
|
|
||
|
|
hw_attach_address (hw_parent (me),
|
||
|
|
0, attach_space, attach_address, attach_size, me);
|
||
|
|
}
|
||
|
|
|
||
|
|
static void
|
||
|
|
cris_900000xx_finish (struct hw *me)
|
||
|
|
{
|
||
|
|
struct cris_900000xx_hw *hw;
|
||
|
|
|
||
|
|
hw = HW_ZALLOC (me, struct cris_900000xx_hw);
|
||
|
|
set_hw_data (me, hw);
|
||
|
|
set_hw_io_write_buffer (me, cris_io_write_buffer);
|
||
|
|
|
||
|
|
attach_regs (me, hw);
|
||
|
|
}
|
||
|
|
|
||
|
|
const struct hw_descriptor dv_cris_900000xx_descriptor[] = {
|
||
|
|
{ "cris_900000xx", cris_900000xx_finish, },
|
||
|
|
{ NULL },
|
||
|
|
};
|