readline: don't free completions in readline_free()
[qemu/ar7.git] / target / m68k / cpu.c
blob6a80be009bfe6c1ab33d0780390011da7034b6ee
1 /*
2 * QEMU Motorola 68k CPU
4 * Copyright (c) 2012 SUSE LINUX Products GmbH
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.
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.
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>
21 #include "qemu/osdep.h"
22 #include "qapi/error.h"
23 #include "cpu.h"
24 #include "qemu-common.h"
25 #include "migration/vmstate.h"
26 #include "exec/exec-all.h"
29 static void m68k_cpu_set_pc(CPUState *cs, vaddr value)
31 M68kCPU *cpu = M68K_CPU(cs);
33 cpu->env.pc = value;
36 static bool m68k_cpu_has_work(CPUState *cs)
38 return cs->interrupt_request & CPU_INTERRUPT_HARD;
41 static void m68k_set_feature(CPUM68KState *env, int feature)
43 env->features |= (1u << feature);
46 /* CPUClass::reset() */
47 static void m68k_cpu_reset(CPUState *s)
49 M68kCPU *cpu = M68K_CPU(s);
50 M68kCPUClass *mcc = M68K_CPU_GET_CLASS(cpu);
51 CPUM68KState *env = &cpu->env;
52 floatx80 nan = floatx80_default_nan(NULL);
53 int i;
55 mcc->parent_reset(s);
57 memset(env, 0, offsetof(CPUM68KState, end_reset_fields));
58 #ifdef CONFIG_SOFTMMU
59 cpu_m68k_set_sr(env, SR_S | SR_I);
60 #else
61 cpu_m68k_set_sr(env, 0);
62 #endif
63 for (i = 0; i < 8; i++) {
64 env->fregs[i].d = nan;
66 cpu_m68k_set_fpcr(env, 0);
67 env->fpsr = 0;
69 /* TODO: We should set PC from the interrupt vector. */
70 env->pc = 0;
73 static void m68k_cpu_disas_set_info(CPUState *s, disassemble_info *info)
75 M68kCPU *cpu = M68K_CPU(s);
76 CPUM68KState *env = &cpu->env;
77 info->print_insn = print_insn_m68k;
78 if (m68k_feature(env, M68K_FEATURE_M68000)) {
79 info->mach = bfd_mach_m68040;
83 /* CPU models */
85 static ObjectClass *m68k_cpu_class_by_name(const char *cpu_model)
87 ObjectClass *oc;
88 char *typename;
90 typename = g_strdup_printf(M68K_CPU_TYPE_NAME("%s"), cpu_model);
91 oc = object_class_by_name(typename);
92 g_free(typename);
93 if (oc != NULL && (object_class_dynamic_cast(oc, TYPE_M68K_CPU) == NULL ||
94 object_class_is_abstract(oc))) {
95 return NULL;
97 return oc;
100 static void m5206_cpu_initfn(Object *obj)
102 M68kCPU *cpu = M68K_CPU(obj);
103 CPUM68KState *env = &cpu->env;
105 m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
108 static void m68000_cpu_initfn(Object *obj)
110 M68kCPU *cpu = M68K_CPU(obj);
111 CPUM68KState *env = &cpu->env;
113 m68k_set_feature(env, M68K_FEATURE_M68000);
114 m68k_set_feature(env, M68K_FEATURE_USP);
115 m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
118 static void m68020_cpu_initfn(Object *obj)
120 M68kCPU *cpu = M68K_CPU(obj);
121 CPUM68KState *env = &cpu->env;
123 m68k_set_feature(env, M68K_FEATURE_M68000);
124 m68k_set_feature(env, M68K_FEATURE_USP);
125 m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
126 m68k_set_feature(env, M68K_FEATURE_QUAD_MULDIV);
127 m68k_set_feature(env, M68K_FEATURE_BRAL);
128 m68k_set_feature(env, M68K_FEATURE_BCCL);
129 m68k_set_feature(env, M68K_FEATURE_BITFIELD);
130 m68k_set_feature(env, M68K_FEATURE_EXT_FULL);
131 m68k_set_feature(env, M68K_FEATURE_SCALED_INDEX);
132 m68k_set_feature(env, M68K_FEATURE_LONG_MULDIV);
133 m68k_set_feature(env, M68K_FEATURE_FPU);
134 m68k_set_feature(env, M68K_FEATURE_CAS);
135 m68k_set_feature(env, M68K_FEATURE_BKPT);
136 m68k_set_feature(env, M68K_FEATURE_RTD);
137 m68k_set_feature(env, M68K_FEATURE_CHK2);
139 #define m68030_cpu_initfn m68020_cpu_initfn
141 static void m68040_cpu_initfn(Object *obj)
143 M68kCPU *cpu = M68K_CPU(obj);
144 CPUM68KState *env = &cpu->env;
146 m68020_cpu_initfn(obj);
147 m68k_set_feature(env, M68K_FEATURE_M68040);
150 static void m68060_cpu_initfn(Object *obj)
152 M68kCPU *cpu = M68K_CPU(obj);
153 CPUM68KState *env = &cpu->env;
155 m68k_set_feature(env, M68K_FEATURE_M68000);
156 m68k_set_feature(env, M68K_FEATURE_USP);
157 m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
158 m68k_set_feature(env, M68K_FEATURE_BRAL);
159 m68k_set_feature(env, M68K_FEATURE_BCCL);
160 m68k_set_feature(env, M68K_FEATURE_BITFIELD);
161 m68k_set_feature(env, M68K_FEATURE_EXT_FULL);
162 m68k_set_feature(env, M68K_FEATURE_SCALED_INDEX);
163 m68k_set_feature(env, M68K_FEATURE_LONG_MULDIV);
164 m68k_set_feature(env, M68K_FEATURE_FPU);
165 m68k_set_feature(env, M68K_FEATURE_CAS);
166 m68k_set_feature(env, M68K_FEATURE_BKPT);
167 m68k_set_feature(env, M68K_FEATURE_RTD);
168 m68k_set_feature(env, M68K_FEATURE_CHK2);
171 static void m5208_cpu_initfn(Object *obj)
173 M68kCPU *cpu = M68K_CPU(obj);
174 CPUM68KState *env = &cpu->env;
176 m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
177 m68k_set_feature(env, M68K_FEATURE_CF_ISA_APLUSC);
178 m68k_set_feature(env, M68K_FEATURE_BRAL);
179 m68k_set_feature(env, M68K_FEATURE_CF_EMAC);
180 m68k_set_feature(env, M68K_FEATURE_USP);
183 static void cfv4e_cpu_initfn(Object *obj)
185 M68kCPU *cpu = M68K_CPU(obj);
186 CPUM68KState *env = &cpu->env;
188 m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
189 m68k_set_feature(env, M68K_FEATURE_CF_ISA_B);
190 m68k_set_feature(env, M68K_FEATURE_BRAL);
191 m68k_set_feature(env, M68K_FEATURE_CF_FPU);
192 m68k_set_feature(env, M68K_FEATURE_CF_EMAC);
193 m68k_set_feature(env, M68K_FEATURE_USP);
196 static void any_cpu_initfn(Object *obj)
198 M68kCPU *cpu = M68K_CPU(obj);
199 CPUM68KState *env = &cpu->env;
201 m68k_set_feature(env, M68K_FEATURE_CF_ISA_A);
202 m68k_set_feature(env, M68K_FEATURE_CF_ISA_B);
203 m68k_set_feature(env, M68K_FEATURE_CF_ISA_APLUSC);
204 m68k_set_feature(env, M68K_FEATURE_BRAL);
205 m68k_set_feature(env, M68K_FEATURE_CF_FPU);
206 /* MAC and EMAC are mututally exclusive, so pick EMAC.
207 It's mostly backwards compatible. */
208 m68k_set_feature(env, M68K_FEATURE_CF_EMAC);
209 m68k_set_feature(env, M68K_FEATURE_CF_EMAC_B);
210 m68k_set_feature(env, M68K_FEATURE_USP);
211 m68k_set_feature(env, M68K_FEATURE_EXT_FULL);
212 m68k_set_feature(env, M68K_FEATURE_WORD_INDEX);
215 static void m68k_cpu_realizefn(DeviceState *dev, Error **errp)
217 CPUState *cs = CPU(dev);
218 M68kCPU *cpu = M68K_CPU(dev);
219 M68kCPUClass *mcc = M68K_CPU_GET_CLASS(dev);
220 Error *local_err = NULL;
222 register_m68k_insns(&cpu->env);
224 cpu_exec_realizefn(cs, &local_err);
225 if (local_err != NULL) {
226 error_propagate(errp, local_err);
227 return;
230 m68k_cpu_init_gdb(cpu);
232 cpu_reset(cs);
233 qemu_init_vcpu(cs);
235 mcc->parent_realize(dev, errp);
238 static void m68k_cpu_initfn(Object *obj)
240 CPUState *cs = CPU(obj);
241 M68kCPU *cpu = M68K_CPU(obj);
242 CPUM68KState *env = &cpu->env;
244 cs->env_ptr = env;
247 static const VMStateDescription vmstate_m68k_cpu = {
248 .name = "cpu",
249 .unmigratable = 1,
252 static void m68k_cpu_class_init(ObjectClass *c, void *data)
254 M68kCPUClass *mcc = M68K_CPU_CLASS(c);
255 CPUClass *cc = CPU_CLASS(c);
256 DeviceClass *dc = DEVICE_CLASS(c);
258 device_class_set_parent_realize(dc, m68k_cpu_realizefn,
259 &mcc->parent_realize);
260 mcc->parent_reset = cc->reset;
261 cc->reset = m68k_cpu_reset;
263 cc->class_by_name = m68k_cpu_class_by_name;
264 cc->has_work = m68k_cpu_has_work;
265 cc->do_interrupt = m68k_cpu_do_interrupt;
266 cc->cpu_exec_interrupt = m68k_cpu_exec_interrupt;
267 cc->dump_state = m68k_cpu_dump_state;
268 cc->set_pc = m68k_cpu_set_pc;
269 cc->gdb_read_register = m68k_cpu_gdb_read_register;
270 cc->gdb_write_register = m68k_cpu_gdb_write_register;
271 cc->handle_mmu_fault = m68k_cpu_handle_mmu_fault;
272 #if defined(CONFIG_SOFTMMU)
273 cc->do_unassigned_access = m68k_cpu_unassigned_access;
274 cc->get_phys_page_debug = m68k_cpu_get_phys_page_debug;
275 #endif
276 cc->disas_set_info = m68k_cpu_disas_set_info;
277 cc->tcg_initialize = m68k_tcg_init;
279 cc->gdb_num_core_regs = 18;
280 cc->gdb_core_xml_file = "cf-core.xml";
282 dc->vmsd = &vmstate_m68k_cpu;
285 #define DEFINE_M68K_CPU_TYPE(cpu_model, initfn) \
287 .name = M68K_CPU_TYPE_NAME(cpu_model), \
288 .instance_init = initfn, \
289 .parent = TYPE_M68K_CPU, \
292 static const TypeInfo m68k_cpus_type_infos[] = {
293 { /* base class should be registered first */
294 .name = TYPE_M68K_CPU,
295 .parent = TYPE_CPU,
296 .instance_size = sizeof(M68kCPU),
297 .instance_init = m68k_cpu_initfn,
298 .abstract = true,
299 .class_size = sizeof(M68kCPUClass),
300 .class_init = m68k_cpu_class_init,
302 DEFINE_M68K_CPU_TYPE("m68000", m68000_cpu_initfn),
303 DEFINE_M68K_CPU_TYPE("m68020", m68020_cpu_initfn),
304 DEFINE_M68K_CPU_TYPE("m68030", m68030_cpu_initfn),
305 DEFINE_M68K_CPU_TYPE("m68040", m68040_cpu_initfn),
306 DEFINE_M68K_CPU_TYPE("m68060", m68060_cpu_initfn),
307 DEFINE_M68K_CPU_TYPE("m5206", m5206_cpu_initfn),
308 DEFINE_M68K_CPU_TYPE("m5208", m5208_cpu_initfn),
309 DEFINE_M68K_CPU_TYPE("cfv4e", cfv4e_cpu_initfn),
310 DEFINE_M68K_CPU_TYPE("any", any_cpu_initfn),
313 DEFINE_TYPES(m68k_cpus_type_infos)