| /* |
| * 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 |
