blob: 6073a5b21c5ac13b49e6749b48f95a5259158768 (
plain)
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
|
/*
* OpenRISC exception helper routines
*
* Copyright (c) 2011-2012 Jia Liu <proljc@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 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/>.
*/
#include "qemu/osdep.h"
#include "cpu.h"
#include "exec/exec-all.h"
#include "exec/helper-proto.h"
#include "exception.h"
void HELPER(exception)(CPUOpenRISCState *env, uint32_t excp)
{
OpenRISCCPU *cpu = openrisc_env_get_cpu(env);
raise_exception(cpu, excp);
}
static void QEMU_NORETURN do_range(CPUOpenRISCState *env, uintptr_t pc)
{
OpenRISCCPU *cpu = openrisc_env_get_cpu(env);
CPUState *cs = CPU(cpu);
cs->exception_index = EXCP_RANGE;
cpu_loop_exit_restore(cs, pc);
}
void HELPER(ove_cy)(CPUOpenRISCState *env)
{
if (env->sr_cy) {
do_range(env, GETPC());
}
}
void HELPER(ove_ov)(CPUOpenRISCState *env)
{
if (env->sr_ov < 0) {
do_range(env, GETPC());
}
}
void HELPER(ove_cyov)(CPUOpenRISCState *env)
{
if (env->sr_cy || env->sr_ov < 0) {
do_range(env, GETPC());
}
}
|
