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#define	byte	unsigned char 
#define	word	unsigned int 
 
 
#define STRING_END  0xff	//字符串结束标志 
#define LR    		0xfe	//(回车换行) 
#define BACKSPACE   0xfd    //退格符 
 
 
 
//idata int HOT_RESET _at_ 0xfe;		//HOT_RESET=0x7e7e,认为是热启动 
//#define HOT_RESET_VALUE 0x7e7e 
 
//bit SOUND_ON_OFF=1;		//默认声音开 
 
#define MAX_PULSE_NUMBER 63 
#define sound_error error_sound 
 
 
 
//KEY VALUE 
 
#define NUM_0 0x0             
#define NUM_1 0x1 
#define NUM_2 0x2 
#define NUM_3 0x3 
#define NUM_4 0x4 
#define NUM_5 0x5 
#define NUM_6 0x6 
#define NUM_7 0x7 
#define NUM_8 0x8 
#define NUM_9 0x9 
 
#define MODE     0x80 
#define CANCEL   0x81 
#define uS_mS_S  0x82 
#define START    0x83 
 
//#define PCMODE   0x90 
 
#define NULLKEY 0xff     //无键按下的返回值