/* * 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 */ target_ulong helper_load_tbl(CPUPPCState *env) { return (target_ulong)cpu_ppc_load_tbl(env); } target_ulong helper_load_tbu(CPUPPCState *env) { return cpu_ppc_load_tbu(env); } target_ulong helper_load_atbl(CPUPPCState *env) { return (target_ulong)cpu_ppc_load_atbl(env); } target_ulong helper_load_atbu(CPUPPCState *env) { return cpu_ppc_load_atbu(env); } #if defined(TARGET_PPC64) && !defined(CONFIG_USER_ONLY) target_ulong helper_load_purr(CPUPPCState *env) { return (target_ulong)cpu_ppc_load_purr(env); } #endif target_ulong helper_load_601_rtcl(CPUPPCState *env) { return cpu_ppc601_load_rtcl(env); } target_ulong helper_load_601_rtcu(CPUPPCState *env) { return cpu_ppc601_load_rtcu(env); } #if !defined(CONFIG_USER_ONLY) void helper_store_tbl(CPUPPCState *env, target_ulong val) { cpu_ppc_store_tbl(env, val); } void helper_store_tbu(CPUPPCState *env, target_ulong val) { cpu_ppc_store_tbu(env, val); } void helper_store_atbl(CPUPPCState *env, target_ulong val) { cpu_ppc_store_atbl(env, val); } void helper_store_atbu(CPUPPCState *env, target_ulong val) { cpu_ppc_store_atbu(env, val); } void helper_store_601_rtcl(CPUPPCState *env, target_ulong val) { cpu_ppc601_store_rtcl(env, val); } void helper_store_601_rtcu(CPUPPCState *env, target_ulong val) { cpu_ppc601_store_rtcu(env, val); } target_ulong helper_load_decr(CPUPPCState *env) { return cpu_ppc_load_decr(env); } void helper_store_decr(CPUPPCState *env, target_ulong val) { cpu_ppc_store_decr(env, val); } target_ulong helper_load_40x_pit(CPUPPCState *env) { return load_40x_pit(env); } void helper_store_40x_pit(CPUPPCState *env, target_ulong val) { store_40x_pit(env, val); } void helper_store_booke_tcr(CPUPPCState *env, target_ulong val) { store_booke_tcr(env, val); } void helper_store_booke_tsr(CPUPPCState *env, target_ulong val) { store_booke_tsr(env, val); } #endif /*****************************************************************************/ /* Embedded PowerPC specific helpers */ /* XXX: to be improved to check access rights when in user-mode */ target_ulong helper_load_dcr(CPUPPCState *env, target_ulong dcrn) { uint32_t val = 0; if (unlikely(env->dcr_env == NULL)) { qemu_log("No DCR environment\n"); helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL); } else if (unlikely(ppc_dcr_read(env->dcr_env, (uint32_t)dcrn, &val) != 0)) { qemu_log("DCR read error %d %03x\n", (uint32_t)dcrn, (uint32_t)dcrn); helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG); } return val; } void helper_store_dcr(CPUPPCState *env, target_ulong dcrn, target_ulong val) { if (unlikely(env->dcr_env == NULL)) { qemu_log("No DCR environment\n"); helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL); } else if (unlikely(ppc_dcr_write(env->dcr_env, (uint32_t)dcrn, (uint32_t)val) != 0)) { qemu_log("DCR write error %d %03x\n", (uint32_t)dcrn, (uint32_t)dcrn); helper_raise_exception_err(env, POWERPC_EXCP_PROGRAM, POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG); } }