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Nguyen Anh Quynh
2015-08-21 15:04:50 +08:00
commit 344d016104
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128
qemu/target-arm/unicorn_arm.c Normal file
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/* Unicorn Emulator Engine */
/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2015 */
#include "hw/boards.h"
#include "hw/arm/arm.h"
#include "sysemu/cpus.h"
#include "unicorn.h"
#include "cpu.h"
#include "unicorn_common.h"
#define READ_QWORD(x) ((uint64)x)
#define READ_DWORD(x) (x & 0xffffffff)
#define READ_WORD(x) (x & 0xffff)
#define READ_BYTE_H(x) ((x & 0xffff) >> 8)
#define READ_BYTE_L(x) (x & 0xff)
static void arm_set_pc(struct uc_struct *uc, uint64_t address)
{
((CPUARMState *)uc->current_cpu->env_ptr)->pc = address;
((CPUARMState *)uc->current_cpu->env_ptr)->regs[15] = address;
}
void arm_reg_reset(uch handle)
{
struct uc_struct *uc = (struct uc_struct *) handle;
CPUArchState *env;
env = first_cpu->env_ptr;
memset(env->regs, 0, sizeof(env->regs));
env->pc = 0;
}
int arm_reg_read(uch handle, unsigned int regid, void *value)
{
CPUState *mycpu;
struct uc_struct *uc = (struct uc_struct *) handle;
mycpu = first_cpu;
switch(uc->mode) {
default:
break;
case UC_MODE_ARM:
case UC_MODE_THUMB:
if (regid >= ARM_REG_R0 && regid <= ARM_REG_R12)
*(int32_t *)value = ARM_CPU(uc, mycpu)->env.regs[regid - ARM_REG_R0];
else {
switch(regid) {
//case ARM_REG_SP:
case ARM_REG_R13:
*(int32_t *)value = ARM_CPU(uc, mycpu)->env.regs[13];
break;
//case ARM_REG_LR:
case ARM_REG_R14:
*(int32_t *)value = ARM_CPU(uc, mycpu)->env.regs[14];
break;
//case ARM_REG_PC:
case ARM_REG_R15:
*(int32_t *)value = ARM_CPU(uc, mycpu)->env.regs[15];
break;
}
}
break;
}
return 0;
}
#define WRITE_DWORD(x, w) (x = (x & ~0xffffffff) | (w & 0xffffffff))
#define WRITE_WORD(x, w) (x = (x & ~0xffff) | (w & 0xffff))
#define WRITE_BYTE_H(x, b) (x = (x & ~0xff00) | (b & 0xff))
#define WRITE_BYTE_L(x, b) (x = (x & ~0xff) | (b & 0xff))
int arm_reg_write(uch handle, unsigned int regid, void *value)
{
CPUState *mycpu;
struct uc_struct *uc = (struct uc_struct *) handle;
mycpu = first_cpu;
switch(uc->mode) {
default:
break;
case UC_MODE_ARM:
case UC_MODE_THUMB:
if (regid >= ARM_REG_R0 && regid <= ARM_REG_R12)
ARM_CPU(uc, mycpu)->env.regs[regid - ARM_REG_R0] = *(int32_t *)value;
else {
switch(regid) {
//case ARM_REG_SP:
case ARM_REG_R13:
ARM_CPU(uc, mycpu)->env.regs[13] = *(int32_t *)value;
break;
//case ARM_REG_LR:
case ARM_REG_R14:
ARM_CPU(uc, mycpu)->env.regs[14] = *(int32_t *)value;
break;
//case ARM_REG_PC:
case ARM_REG_R15:
ARM_CPU(uc, mycpu)->env.regs[15] = *(int32_t *)value;
break;
}
}
break;
}
return 0;
}
void arm_uc_init(struct uc_struct* uc)
{
register_accel_types(uc);
arm_cpu_register_types(uc);
tosa_machine_init(uc);
uc->reg_read = arm_reg_read;
uc->reg_write = arm_reg_write;
uc->reg_reset = arm_reg_reset;
uc->set_pc = arm_set_pc;
uc_common_init(uc);
}