void do_patches(void *ptr, unsigned int size);
+struct op_context;
+
void emu_init(void *map_bottom);
+void emu_call_handle_op(struct op_context *op_ctx);
void *emu_do_mmap(unsigned int length, int prot, int flags, int fd, unsigned int offset);
int emu_do_ioctl(int fd, int request, void *argp);
int emu_read_gpiodev(void *buf, int count);
void *emu_do_fopen(const char *path, const char *mode);
int emu_do_system(const char *command);
+int host_init(void);
int host_read_btns(void);
enum { GP2X_UP = 0, GP2X_LEFT = 2, GP2X_DOWN = 4, GP2X_RIGHT = 6,