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1 | /* |
2 | * Altera Nios II helper routines. | |
3 | * | |
4 | * Copyright (C) 2012 Chris Wulff <[email protected]> | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2.1 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with this library; if not, see | |
18 | * <http://www.gnu.org/licenses/lgpl-2.1.html> | |
19 | */ | |
20 | ||
21 | #include "cpu.h" | |
22 | #include "exec/helper-proto.h" | |
23 | #include "exec/cpu_ldst.h" | |
c0d24e7f | 24 | #include "qemu/main-loop.h" |
032c76bc CW |
25 | |
26 | #if !defined(CONFIG_USER_ONLY) | |
27 | void helper_mmu_read_debug(CPUNios2State *env, uint32_t rn) | |
28 | { | |
29 | mmu_read_debug(env, rn); | |
30 | } | |
31 | ||
32 | void helper_mmu_write(CPUNios2State *env, uint32_t rn, uint32_t v) | |
33 | { | |
34 | mmu_write(env, rn, v); | |
35 | } | |
36 | ||
37 | void helper_check_interrupts(CPUNios2State *env) | |
38 | { | |
c0d24e7f | 39 | qemu_mutex_lock_iothread(); |
032c76bc | 40 | nios2_check_interrupts(env); |
c0d24e7f | 41 | qemu_mutex_unlock_iothread(); |
032c76bc CW |
42 | } |
43 | #endif /* !CONFIG_USER_ONLY */ | |
44 | ||
45 | void helper_raise_exception(CPUNios2State *env, uint32_t index) | |
46 | { | |
47 | CPUState *cs = ENV_GET_CPU(env); | |
48 | cs->exception_index = index; | |
49 | cpu_loop_exit(cs); | |
50 | } |