blob: a59003855ab7ded132041c6caf8c2f0695fe022c (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
/*
* Altera Nios II helper routines.
*
* Copyright (C) 2012 Chris Wulff <crwulff@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see
* <http://www.gnu.org/licenses/lgpl-2.1.html>
*/
#include "qemu/osdep.h"
#include "cpu.h"
#include "exec/helper-proto.h"
#include "exec/cpu_ldst.h"
#include "exec/exec-all.h"
#include "qemu/main-loop.h"
#if !defined(CONFIG_USER_ONLY)
void helper_mmu_read_debug(CPUNios2State *env, uint32_t rn)
{
mmu_read_debug(env, rn);
}
void helper_mmu_write(CPUNios2State *env, uint32_t rn, uint32_t v)
{
mmu_write(env, rn, v);
}
static void nios2_check_interrupts(CPUNios2State *env)
{
if (env->irq_pending &&
(env->regs[CR_STATUS] & CR_STATUS_PIE)) {
env->irq_pending = 0;
cpu_interrupt(env_cpu(env), CPU_INTERRUPT_HARD);
}
}
void helper_check_interrupts(CPUNios2State *env)
{
qemu_mutex_lock_iothread();
nios2_check_interrupts(env);
qemu_mutex_unlock_iothread();
}
#endif /* !CONFIG_USER_ONLY */
void helper_raise_exception(CPUNios2State *env, uint32_t index)
{
CPUState *cs = env_cpu(env);
cs->exception_index = index;
cpu_loop_exit(cs);
}
|
