00-99 count.asm

来自「单片机模拟器的几个例子」· 汇编 代码 · 共 29 行

Count		EQU 30H 
SP1			BIT P3.7 
			ORG 0 
START:		MOV Count,#00H 
NEXT:		MOV A,Count 
			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 
WT:			JNB SP1,WT 
WAIT:		JB SP1,WAIT 
			LCALL DELY10MS 
	JB SP1,WAIT 
			INC Count 
			MOV A,Count 
	CJNE A,#100,NEXT 
			LJMP START 
DELY10MS:	MOV R6,#20 
D1:			MOV R7,#248 
			DJNZ R7,$ 
	DJNZ R6,D1 
			RET 
TABLE:		DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH 
			END