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Diffstat (limited to 'target/moxie/cpu.h')
| -rw-r--r-- | target/moxie/cpu.h | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/target/moxie/cpu.h b/target/moxie/cpu.h new file mode 100644 index 0000000000..3e880facf4 --- /dev/null +++ b/target/moxie/cpu.h @@ -0,0 +1,143 @@ +/* + * Moxie emulation + * + * Copyright (c) 2008, 2010, 2013 Anthony Green + * + * 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 General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef MOXIE_CPU_H +#define MOXIE_CPU_H + +#include "qemu-common.h" + +#define TARGET_LONG_BITS 32 + +#define CPUArchState struct CPUMoxieState + +#define MOXIE_EX_DIV0 0 +#define MOXIE_EX_BAD 1 +#define MOXIE_EX_IRQ 2 +#define MOXIE_EX_SWI 3 +#define MOXIE_EX_MMU_MISS 4 +#define MOXIE_EX_BREAK 16 + +#include "exec/cpu-defs.h" +#include "fpu/softfloat.h" + +#define TARGET_PAGE_BITS 12 /* 4k */ + +#define TARGET_PHYS_ADDR_SPACE_BITS 32 +#define TARGET_VIRT_ADDR_SPACE_BITS 32 + +#define NB_MMU_MODES 1 + +typedef struct CPUMoxieState { + + uint32_t flags; /* general execution flags */ + uint32_t gregs[16]; /* general registers */ + uint32_t sregs[256]; /* special registers */ + uint32_t pc; /* program counter */ + /* Instead of saving the cc value, we save the cmp arguments + and compute cc on demand. */ + uint32_t cc_a; /* reg a for condition code calculation */ + uint32_t cc_b; /* reg b for condition code calculation */ + + void *irq[8]; + + CPU_COMMON + +} CPUMoxieState; + +#include "qom/cpu.h" + +#define TYPE_MOXIE_CPU "moxie-cpu" + +#define MOXIE_CPU_CLASS(klass) \ + OBJECT_CLASS_CHECK(MoxieCPUClass, (klass), TYPE_MOXIE_CPU) +#define MOXIE_CPU(obj) \ + OBJECT_CHECK(MoxieCPU, (obj), TYPE_MOXIE_CPU) +#define MOXIE_CPU_GET_CLASS(obj) \ + OBJECT_GET_CLASS(MoxieCPUClass, (obj), TYPE_MOXIE_CPU) + +/** + * MoxieCPUClass: + * @parent_reset: The parent class' reset handler. + * + * A Moxie CPU model. + */ +typedef struct MoxieCPUClass { + /*< private >*/ + CPUClass parent_class; + /*< public >*/ + + DeviceRealize parent_realize; + void (*parent_reset)(CPUState *cpu); +} MoxieCPUClass; + +/** + * MoxieCPU: + * @env: #CPUMoxieState + * + * A Moxie CPU. + */ +typedef struct MoxieCPU { + /*< private >*/ + CPUState parent_obj; + /*< public >*/ + + CPUMoxieState env; +} MoxieCPU; + +static inline MoxieCPU *moxie_env_get_cpu(CPUMoxieState *env) +{ + return container_of(env, MoxieCPU, env); +} + +#define ENV_GET_CPU(e) CPU(moxie_env_get_cpu(e)) + +#define ENV_OFFSET offsetof(MoxieCPU, env) + +MoxieCPU *cpu_moxie_init(const char *cpu_model); +void moxie_cpu_do_interrupt(CPUState *cs); +void moxie_cpu_dump_state(CPUState *cpu, FILE *f, + fprintf_function cpu_fprintf, int flags); +hwaddr moxie_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr); +void moxie_translate_init(void); +int cpu_moxie_signal_handler(int host_signum, void *pinfo, + void *puc); + +#define cpu_init(cpu_model) CPU(cpu_moxie_init(cpu_model)) + +#define cpu_signal_handler cpu_moxie_signal_handler + +static inline int cpu_mmu_index(CPUMoxieState *env, bool ifetch) +{ + return 0; +} + +#include "exec/cpu-all.h" + +static inline void cpu_get_tb_cpu_state(CPUMoxieState *env, target_ulong *pc, + target_ulong *cs_base, uint32_t *flags) +{ + *pc = env->pc; + *cs_base = 0; + *flags = 0; +} + +int moxie_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, + int rw, int mmu_idx); + +#endif /* MOXIE_CPU_H */ |