Andreas Färber | b9e7a23 | 2012-04-15 00:35:50 +0200 | [diff] [blame] | 1 | /* |
| 2 | * QEMU Motorola 68k CPU |
| 3 | * |
| 4 | * Copyright (c) 2012 SUSE LINUX Products GmbH |
| 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 "cpu.h" |
| 22 | #include "qemu-common.h" |
| 23 | |
| 24 | |
| 25 | /* CPUClass::reset() */ |
| 26 | static void m68k_cpu_reset(CPUState *s) |
| 27 | { |
| 28 | M68kCPU *cpu = M68K_CPU(s); |
| 29 | M68kCPUClass *mcc = M68K_CPU_GET_CLASS(cpu); |
| 30 | CPUM68KState *env = &cpu->env; |
| 31 | |
Andreas Färber | 11c1986 | 2012-04-15 00:59:50 +0200 | [diff] [blame] | 32 | if (qemu_loglevel_mask(CPU_LOG_RESET)) { |
| 33 | qemu_log("CPU Reset (CPU %d)\n", env->cpu_index); |
| 34 | log_cpu_state(env, 0); |
| 35 | } |
| 36 | |
Andreas Färber | b9e7a23 | 2012-04-15 00:35:50 +0200 | [diff] [blame] | 37 | mcc->parent_reset(s); |
| 38 | |
Andreas Färber | 11c1986 | 2012-04-15 00:59:50 +0200 | [diff] [blame] | 39 | memset(env, 0, offsetof(CPUM68KState, breakpoints)); |
| 40 | #if !defined(CONFIG_USER_ONLY) |
| 41 | env->sr = 0x2700; |
| 42 | #endif |
| 43 | m68k_switch_sp(env); |
| 44 | /* ??? FP regs should be initialized to NaN. */ |
| 45 | env->cc_op = CC_OP_FLAGS; |
| 46 | /* TODO: We should set PC from the interrupt vector. */ |
| 47 | env->pc = 0; |
| 48 | tlb_flush(env, 1); |
Andreas Färber | b9e7a23 | 2012-04-15 00:35:50 +0200 | [diff] [blame] | 49 | } |
| 50 | |
Andreas Färber | 9b70603 | 2012-04-15 01:10:56 +0200 | [diff] [blame^] | 51 | static void m68k_cpu_initfn(Object *obj) |
| 52 | { |
| 53 | M68kCPU *cpu = M68K_CPU(obj); |
| 54 | CPUM68KState *env = &cpu->env; |
| 55 | |
| 56 | cpu_exec_init(env); |
| 57 | } |
| 58 | |
Andreas Färber | b9e7a23 | 2012-04-15 00:35:50 +0200 | [diff] [blame] | 59 | static void m68k_cpu_class_init(ObjectClass *c, void *data) |
| 60 | { |
| 61 | M68kCPUClass *mcc = M68K_CPU_CLASS(c); |
| 62 | CPUClass *cc = CPU_CLASS(c); |
| 63 | |
| 64 | mcc->parent_reset = cc->reset; |
| 65 | cc->reset = m68k_cpu_reset; |
| 66 | } |
| 67 | |
| 68 | static const TypeInfo m68k_cpu_type_info = { |
| 69 | .name = TYPE_M68K_CPU, |
| 70 | .parent = TYPE_CPU, |
| 71 | .instance_size = sizeof(M68kCPU), |
Andreas Färber | 9b70603 | 2012-04-15 01:10:56 +0200 | [diff] [blame^] | 72 | .instance_init = m68k_cpu_initfn, |
Andreas Färber | b9e7a23 | 2012-04-15 00:35:50 +0200 | [diff] [blame] | 73 | .abstract = false, |
| 74 | .class_size = sizeof(M68kCPUClass), |
| 75 | .class_init = m68k_cpu_class_init, |
| 76 | }; |
| 77 | |
| 78 | static void m68k_cpu_register_types(void) |
| 79 | { |
| 80 | type_register_static(&m68k_cpu_type_info); |
| 81 | } |
| 82 | |
| 83 | type_init(m68k_cpu_register_types) |