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/*
* 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 _CPU_MOXIE_H
#define _CPU_MOXIE_H
#include "config.h"
#include "qemu-common.h"
#define TARGET_LONG_BITS 32
#define CPUArchState struct CPUMoxieState
#define TARGET_HAS_ICE 1
#define ELF_MACHINE 0xFEED /* EM_MOXIE */
#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 MOXIE_CPU(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);
int cpu_moxie_exec(CPUMoxieState *s);
void moxie_cpu_do_interrupt(CPUState *cs);
void moxie_translate_init(void);
int cpu_moxie_signal_handler(int host_signum, void *pinfo,
void *puc);
static inline CPUMoxieState *cpu_init(const char *cpu_model)
{
MoxieCPU *cpu = cpu_moxie_init(cpu_model);
if (cpu == NULL) {
return NULL;
}
return &cpu->env;
}
#define cpu_exec cpu_moxie_exec
#define cpu_gen_code cpu_moxie_gen_code
#define cpu_signal_handler cpu_moxie_signal_handler
static inline int cpu_mmu_index(CPUMoxieState *env)
{
return 0;
}
#include "exec/cpu-all.h"
#include "exec/exec-all.h"
static inline void cpu_pc_from_tb(CPUMoxieState *env, TranslationBlock *tb)
{
env->pc = tb->pc;
}
static inline void cpu_get_tb_cpu_state(CPUMoxieState *env, target_ulong *pc,
target_ulong *cs_base, int *flags)
{
*pc = env->pc;
*cs_base = 0;
*flags = 0;
}
static inline int cpu_has_work(CPUState *cpu)
{
return cpu->interrupt_request & CPU_INTERRUPT_HARD;
}
int cpu_moxie_handle_mmu_fault(CPUMoxieState *env, target_ulong address,
int rw, int mmu_idx);
#endif /* _CPU_MOXIE_H */
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