00-59 count.asm

来自「8951系列单片机仿真」· 汇编 代码 · 共 27 行

Second		EQU 30H 
			ORG 0 
START:		MOV Second,#00H 
NEXT:		MOV A,Second 
	MOV B,#10 
			DIV AB 
			MOV DPTR,#TABLE 
	MOVC A,@A+DPTR 
			MOV P0,A 
			MOV A,B 
	MOVC A,@A+DPTR 
			MOV P2,A 
			LCALL DELY1S 
	INC Second 
			MOV A,Second 
			CJNE A,#60,NEXT 
	LJMP START 
DELY1S:		MOV R5,#100 
D2:			MOV R6,#20 
D1:	MOV R7,#248 
			DJNZ R7,$ 
			DJNZ R6,D1 
	DJNZ R5,D2 
			RET 
TABLE:		DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH 
			END