下面是我自己想着编的时钟程序，感觉能想到的都想了，不知还有没有什么不妥，请各位大虾指教啊，欢迎大家多提批评意见，我是刚学编程的，就像别人给我挑毛病，这样才能进步啊，呵呵！
ORG 0000H
LJMP MAIN
ORG 000BH
LJMP TT0INT
ORG 0030H
MAIN: MOV SP,#6FH
MOV TMOD,#01H
SETB EA
SETB ET0
SETB TR0
MOV TH0,#3CH ;(50MS)
MOV TL0,#0B0H
MOV R7,#04H
MOV R6,#60
MOV R5,#60
MOV R4,#24
MOV R3,#00H
MOV R2,#00H
MOV R1,#00H
SJMP $
TT0INT: MOV TH0,#3CH
MOV TL0,#0B0H
DJNZ R7,EXIT
MOV R7,#04H
INC R3
DJNZ R6,SECOND
MOV R3,#00H
MOV R6,#60
INC R2
DJNZ R5,MINUTE
MOV R2,#00H
MOV R2,#00H
MOV R5,#60
INC R1
DJNZ R4,HOUR
MOV R1,#00H
MOV R4,#24
HOUR: MOV A,R1
MOV 30H,A
MOV B,#10
DIV AB
MOV 33H,A
MOV 34H,B
MINUTE: MOV A,R2
MOV 31H,A
MOV B,#10
DIV AB
MOV 35H,A
MOV 36H,B
SECOND: MOV A,R3
MOV 32H,A
MOV B,#10
DIV AB
MOV 37H,A
MOV 38H,B
EXIT: RETI
END |
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