LXR qemu/target/nios2/op

   1/*
   2 * Altera Nios II helper routines.
   3 *
   4 * Copyright (C) 2012 Chris Wulff <crwulff@gmail.com>
   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 "qemu/osdep.h"
  22#include "cpu.h"
  23#include "exec/helper-proto.h"
  24#include "exec/cpu_ldst.h"
  25#include "qemu/main-loop.h"
  26
  27#if !defined(CONFIG_USER_ONLY)
  28void helper_mmu_read_debug(CPUNios2State *env, uint32_t rn)
  29{
  30    mmu_read_debug(env, rn);
  31}
  32
  33void helper_mmu_write(CPUNios2State *env, uint32_t rn, uint32_t v)
  34{
  35    mmu_write(env, rn, v);
  36}
  37
  38void helper_check_interrupts(CPUNios2State *env)
  39{
  40    qemu_mutex_lock_iothread();
  41    nios2_check_interrupts(env);
  42    qemu_mutex_unlock_iothread();
  43}
  44#endif /* !CONFIG_USER_ONLY */
  45
  46void helper_raise_exception(CPUNios2State *env, uint32_t index)
  47{
  48    CPUState *cs = ENV_GET_CPU(env);
  49    cs->exception_index = index;
  50    cpu_loop_exit(cs);
  51}
  52