+#include "../common/host_fb.h"
void do_entry(unsigned long entry, void *stack_frame, int stack_frame_cnt, void *exitf);
void *emu_mmap_dev(unsigned int length, int prot, int flags, unsigned int offset);
int emu_read_gpiodev(void *buf, int count);
-void *host_video_init(int *stride);
-void *host_video_flip(void);
int host_read_btns(void);
enum { GP2X_UP = 0, GP2X_LEFT = 2, GP2X_DOWN = 4, GP2X_RIGHT = 6,