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#ifndef __DEF_H__ 
#define __DEF_H__ 
 
#define U32 unsigned int 
#define U16 unsigned short 
#define S32 int 
#define S16 short int 
#define U8 unsigned char 
#define	ESC_KEY		0x1b		 
		    					    		     
#endif /*__DEF_H__*/