| /* |
| * QEMU SuperH CPU |
| * |
| * Copyright (c) 2005 Samuel Tardieu |
| * Copyright (c) 2012 SUSE LINUX Products GmbH |
| * |
| * 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 2.1 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/lgpl-2.1.html> |
| */ |
| |
| #include "cpu.h" |
| #include "qemu-common.h" |
| |
| |
| /* CPUClass::reset() */ |
| static void superh_cpu_reset(CPUState *s) |
| { |
| SuperHCPU *cpu = SUPERH_CPU(s); |
| SuperHCPUClass *scc = SUPERH_CPU_GET_CLASS(cpu); |
| CPUSH4State *env = &cpu->env; |
| |
| if (qemu_loglevel_mask(CPU_LOG_RESET)) { |
| qemu_log("CPU Reset (CPU %d)\n", s->cpu_index); |
| log_cpu_state(env, 0); |
| } |
| |
| scc->parent_reset(s); |
| |
| memset(env, 0, offsetof(CPUSH4State, breakpoints)); |
| tlb_flush(env, 1); |
| |
| env->pc = 0xA0000000; |
| #if defined(CONFIG_USER_ONLY) |
| env->fpscr = FPSCR_PR; /* value for userspace according to the kernel */ |
| set_float_rounding_mode(float_round_nearest_even, &env->fp_status); /* ?! */ |
| #else |
| env->sr = SR_MD | SR_RB | SR_BL | SR_I3 | SR_I2 | SR_I1 | SR_I0; |
| env->fpscr = FPSCR_DN | FPSCR_RM_ZERO; /* CPU reset value according to SH4 manual */ |
| set_float_rounding_mode(float_round_to_zero, &env->fp_status); |
| set_flush_to_zero(1, &env->fp_status); |
| #endif |
| set_default_nan_mode(1, &env->fp_status); |
| } |
| |
| static void superh_cpu_initfn(Object *obj) |
| { |
| SuperHCPU *cpu = SUPERH_CPU(obj); |
| CPUSH4State *env = &cpu->env; |
| |
| cpu_exec_init(env); |
| |
| env->movcal_backup_tail = &(env->movcal_backup); |
| } |
| |
| static void superh_cpu_class_init(ObjectClass *oc, void *data) |
| { |
| CPUClass *cc = CPU_CLASS(oc); |
| SuperHCPUClass *scc = SUPERH_CPU_CLASS(oc); |
| |
| scc->parent_reset = cc->reset; |
| cc->reset = superh_cpu_reset; |
| } |
| |
| static const TypeInfo superh_cpu_type_info = { |
| .name = TYPE_SUPERH_CPU, |
| .parent = TYPE_CPU, |
| .instance_size = sizeof(SuperHCPU), |
| .instance_init = superh_cpu_initfn, |
| .abstract = false, |
| .class_size = sizeof(SuperHCPUClass), |
| .class_init = superh_cpu_class_init, |
| }; |
| |
| static void superh_cpu_register_types(void) |
| { |
| type_register_static(&superh_cpu_type_info); |
| } |
| |
| type_init(superh_cpu_register_types) |