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1/*
2 * Moxie emulation
3 *
4 * Copyright (c) 2008, 2010, 2013 Anthony Green
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 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 General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 */
19#ifndef _CPU_MOXIE_H
20#define _CPU_MOXIE_H
21
22#include "config.h"
23#include "qemu-common.h"
24
25#define TARGET_LONG_BITS 32
26
27#define CPUArchState struct CPUMoxieState
28
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29#define ELF_MACHINE 0xFEED /* EM_MOXIE */
30
31#define MOXIE_EX_DIV0 0
32#define MOXIE_EX_BAD 1
33#define MOXIE_EX_IRQ 2
34#define MOXIE_EX_SWI 3
35#define MOXIE_EX_MMU_MISS 4
36#define MOXIE_EX_BREAK 16
37
38#include "exec/cpu-defs.h"
39#include "fpu/softfloat.h"
40
41#define TARGET_PAGE_BITS 12 /* 4k */
42
43#define TARGET_PHYS_ADDR_SPACE_BITS 32
44#define TARGET_VIRT_ADDR_SPACE_BITS 32
45
46#define NB_MMU_MODES 1
47
48typedef struct CPUMoxieState {
49
50 uint32_t flags; /* general execution flags */
51 uint32_t gregs[16]; /* general registers */
52 uint32_t sregs[256]; /* special registers */
53 uint32_t pc; /* program counter */
54 /* Instead of saving the cc value, we save the cmp arguments
55 and compute cc on demand. */
56 uint32_t cc_a; /* reg a for condition code calculation */
57 uint32_t cc_b; /* reg b for condition code calculation */
58
59 void *irq[8];
60
61 CPU_COMMON
62
63} CPUMoxieState;
64
65#include "qom/cpu.h"
66
67#define TYPE_MOXIE_CPU "moxie-cpu"
68
69#define MOXIE_CPU_CLASS(klass) \
70 OBJECT_CLASS_CHECK(MoxieCPUClass, (klass), TYPE_MOXIE_CPU)
71#define MOXIE_CPU(obj) \
72 OBJECT_CHECK(MoxieCPU, (obj), TYPE_MOXIE_CPU)
73#define MOXIE_CPU_GET_CLASS(obj) \
74 OBJECT_GET_CLASS(MoxieCPUClass, (obj), TYPE_MOXIE_CPU)
75
76/**
77 * MoxieCPUClass:
78 * @parent_reset: The parent class' reset handler.
79 *
80 * A Moxie CPU model.
81 */
82typedef struct MoxieCPUClass {
83 /*< private >*/
84 CPUClass parent_class;
85 /*< public >*/
86
87 DeviceRealize parent_realize;
88 void (*parent_reset)(CPUState *cpu);
89} MoxieCPUClass;
90
91/**
92 * MoxieCPU:
93 * @env: #CPUMoxieState
94 *
95 * A Moxie CPU.
96 */
97typedef struct MoxieCPU {
98 /*< private >*/
99 CPUState parent_obj;
100 /*< public >*/
101
102 CPUMoxieState env;
103} MoxieCPU;
104
105static inline MoxieCPU *moxie_env_get_cpu(CPUMoxieState *env)
106{
6e42be7c 107 return container_of(env, MoxieCPU, env);
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108}
109
110#define ENV_GET_CPU(e) CPU(moxie_env_get_cpu(e))
111
112#define ENV_OFFSET offsetof(MoxieCPU, env)
113
114MoxieCPU *cpu_moxie_init(const char *cpu_model);
115int cpu_moxie_exec(CPUMoxieState *s);
53574064 116void moxie_cpu_do_interrupt(CPUState *cs);
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117void moxie_cpu_dump_state(CPUState *cpu, FILE *f,
118 fprintf_function cpu_fprintf, int flags);
00b941e5 119hwaddr moxie_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
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120void moxie_translate_init(void);
121int cpu_moxie_signal_handler(int host_signum, void *pinfo,
122 void *puc);
123
2994fd96 124#define cpu_init(cpu_model) CPU(cpu_moxie_init(cpu_model))
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125
126#define cpu_exec cpu_moxie_exec
127#define cpu_gen_code cpu_moxie_gen_code
128#define cpu_signal_handler cpu_moxie_signal_handler
129
130static inline int cpu_mmu_index(CPUMoxieState *env)
131{
132 return 0;
133}
134
135#include "exec/cpu-all.h"
136#include "exec/exec-all.h"
137
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138static inline void cpu_get_tb_cpu_state(CPUMoxieState *env, target_ulong *pc,
139 target_ulong *cs_base, int *flags)
140{
141 *pc = env->pc;
142 *cs_base = 0;
143 *flags = 0;
144}
145
7510454e 146int moxie_cpu_handle_mmu_fault(CPUState *cpu, vaddr address,
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147 int rw, int mmu_idx);
148
149#endif /* _CPU_MOXIE_H */