dzjjiafa.asm

能显示时间

ORG 0000H
AJMP MAIN
ORG 0030H
MAIN:
	MOV R0,#60H
	MOV R1,#65H
	MOV R2,#02H
	MOV @R0,#01H
	INC R0
	MOV @R0,#02H
	DEC R0
	MOV @R1,#03H
	INC R1
	MOV @R1,#04H
	DEC R1
	LJMP D_WADD1
ORG 0200H
D_WADD1:PUSH PSW
	CLR C
	MOV R3,#00H
ADD10:	MOV A,@R0
	ADDC A,@R1
	MOV @R0,A
	INC R0
	INC R1
	INC R3
	DJNZ R2,ADD10
	JNC ADD20
	MOV @R0,#01H
	INC R3
ADD20:	POP PSW
	RET
END