s11-1.asm

手把手叫你学单片机

	ORG 0000H
	AJMP MAIN
	ORG 030H
MAIN:	LCALL SCAN_KEY
	JZ MAIN
	LCALL DEL10MS
	LCALL SCAN_KEY
	JZ MAIN
	MOV P3,#7FH
	JNB P3.0,L3
	JNB P3.1,L6	
	JNB P3.2,L9	
	MOV P3,#0BFH
	JNB P3.0,L2
	JNB P3.1,L5				
	JNB P3.2,L8
	JNB P3.3,L0
	MOV P3,#0DFH
	JNB P3.0,L1
	JNB P3.1,L4		
	JNB P3.2,L7
	AJMP MAIN
L0:	MOV A,#00H
	AJMP GOON
L1:	MOV A,#01H
	AJMP GOON
L2:	MOV A,#02H
	AJMP GOON
L3:	MOV A,#03H
	AJMP GOON
L4:	MOV A,#04H
	AJMP GOON
L5:	MOV A,#05H
	AJMP GOON
L6:	MOV A,#06H
	AJMP GOON
L7:	MOV A,#07H
	AJMP GOON
L8:	MOV A,#08H
	AJMP GOON
L9:	MOV A,#09H
GOON:	MOV 30H,A
	MOV DPTR,#DIS_TAB
	MOVC A,@A+DPTR
	MOV P2,A
	MOV A,30H
	MOV DPTR,#TAB
	MOVC A,@A+DPTR
	MOV DPTR,#DIS_TAB
	PUSH ACC
	ANL A,#0FH
	MOVC A,@A+DPTR
	MOV P0,A
	POP ACC
	SWAP A
	ANL A,#0FH
	MOVC A,@A+DPTR
	MOV P1,A
	LCALL DEL10MS
	LJMP MAIN
	ORG 0200H
SCAN_KEY:MOV P3,#0FH
	MOV A,P3
	ORL A,#0F0H
	CPL A
	RET
	ORG 0250H
DEL10MS:MOV R5,#0BH			
F1:	MOV R7,#02H
F2:	MOV R6,#0FFH
F3:	DJNZ R6,F3
	DJNZ R7,F2
	DJNZ R5,F1
	RET
	ORG 0300H
TAB:	DB 00H,01H,04H,09H,16H
	DB 25H,36H,49H,64H,81H
	ORG 0350H
DIS_TAB:DB 0C0H,0F9H,0A4H,0B0H,099H,092H,082H,0F8H
	DB 080H,090H,088H,083H,0C6H,0A1H,086H,08EH
	END