Archipelago » qemu

/*

 *  PowerPC emulation helpers for QEMU.

 *

 *  Copyright (c) 2003-2007 Jocelyn Mayer

 *

 * 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 "cpu.h"

#include "helper.h"

/*****************************************************************************/

/* SPR accesses */

#if !defined(CONFIG_USER_ONLY)

/*

 * This is an ugly helper for EPR, which is basically the same as accessing

 * the IACK (PIAC) register on the MPIC. Because we model the MPIC as a device

 * that can only talk to the CPU through MMIO, let's access it that way!

 */

target_ulong helper_load_epr(CPUPPCState *env)

{

    return ldl_phys(env->mpic_cpu_base + 0xA0);

}

#endif