麻煩大佬們看看單片機匯編語言程序哪里錯啦?

ID:1027053 · 發(fā)表于 2022-5-16 16:39

   ORG 0000H
   LJMP MAIN
   ORG 0003H
   LJMP INTa
   ORG 000BH
   LJMP ITa
   ORG 001BH
   LJMP ITb
   ORG 0100H
MAIN:MOV SP,#70H
   MOV TMOD,#11H //定時器初始化
      SETB EA
      SETB ET0
      SETB ET1
      SETB IT0
      MOV  TL0,#00H
      MOV  TH0,#00H//定時器0賦值
      MOV  TL1,#00H
      MOV  TH1,#00H//定時器1賦值
      MOV  P1,#0FFH
      MOV  B,#0
      MOV  R0,#0
      MOV  R1,#0
      MOV  R2,#0
      MOV  R3,#0
      MOV  A,#0
      MOV  DPTR,#0000H//數(shù)據(jù)指針初始化
      AJMP KEYSCAN
KEYSCAN:
   MOV P3,#0F0H       //給P3賦值，讀行線
      MOV A,P3
      ANL A,#0F0H                //與
      XRL A,#0F0H          //異或
      JNZ DELAY
DELAY:MOV R2,#05H
LOOP1:MOV R3,#0FAH
LOOP2:DJNZ R3,LOOP2
   DJNZ R2,LOOP1
      MOV A,P3
      ANL A #0F0H
      JNZ KEYSCAN1
      LJMP KEYSCAN
KEYSCAN1:
   MOV A,#00H
      MOV P3,#0FH
      MOV A ,P3
      ANL A ,#0FH
      MOV R1,A
      XRL A ,#0FH
      JNZ NUM
      LJMP KEYSCAN
NUM:
      MOV A ,R0
      MOV B,R1
      ORL A,B//A或上B，數(shù)據(jù)保存在A
      MOV DPTR,#TAB
      SJMP DISP0
DISP0:
   CJNE A,#0EEH,DISP1
      MOV A ,#00H
      MOVC A ,@A+DPTR
      MOV P0,A
      LCALL DELAY1
      LJMP KEYSCAN
DISP1:
CJNE A ,#0EDH,DISP2
      MOV A ,#01H
      MOVC A,@A+DPTR
      MOV P0,A
      LCALL DELAY1
      LJMP KEYSCAN
DISP2:
CJNE A ,#0EBH,DISP3
MOV A ,#02H
MOVC A @A+DPTR
MOV P0,A
LCALL DELAY1
LJMP KEYSCAN
DISP3:
CJNE A,#0E7H,DISP4
MOV A,#03H
MOVC A ,@A+DPTR
MOV P0,A
LCALL DELAY1
LJMP KEYSCAN
DISP4:
CJNE A,#0DEH,DISP5
MOV A #04H
MOVC A ,@A+DPTR
MOV P0,A
LCALL DELAY1
LJMP KEYSCAN
DISP5:
CJNE A,#0DDH,DISP6
MOV A ,#05H
MOVC A ,@A+DPTR
MOV P0,A
LCALL DELAY1
LJMP KEYSCAN
DISP6:
CJNE A,#0DBH,DISP7
MOV A ,#06H
MOVC A ,@A+DPTR
MOV P0,A
LCALL DELAY1
LJMP KEYSCAN
DISP7:
CJNE A,#0D7H,DISP8
MOV A ,#07H
MOVC A ,@A+DPTR
MOV P0,A
LCALL DELAY1
LJMP KEYSCAN
DISP8:
CJNE A,#0BEH,DISP9
MOV A ,#08H
MOVC A ,@A+DPTR
MOV P0,A
LCALL DELAY1
LJMP KEYSCAN
DISP9:
CJNE A,#0BDH,DISPA
MOV A ,#09H
MOVC A ,@A+DPTR
MOV P0,A
LCALL DELAY1
LJMP KEYSCAN
DISPA:
CJNE A,#0BBH,DISPB
MOV A ,#0AH
MOVC A ,@A+DPTR
MOV P0,A
LCALL DELAY1
LJMP KEYSCAN
DISPB:
CJNE A,#0B7H,DISPC
MOV A ,#0BH
MOVC A ,@A+DPTR
MOV P0,A
LCALL DELAY1
LJMP KEYSCAN
DISPC:
CJNE A,#07EH,DISPD
MOV A ,#0CH
MOVC A ,@A+DPTR
MOV P0,A
LCALL DELAY1
LJMP KEYSCAN
DISPD:
CJNE A,#07DH,DISPE
MOV A ,#0DH
MOVC A ,@A+DPTR
MOV P0,A
LCALL DELAY1
LJMP KEYSCAN
DISPE:
CJNE A,#07BH,DISPF
MOV A ,#0EH
MOVC A ,@A+DPTR
MOV P0,A
LCALL DELAY1
LJMP KEYSCAN
DISPF:
CJNE A,#077H,KEY
MOV A ,#0FH
MOVC A ,@A+DPTR
MOV P0,A
LCALL DELAY1
LJMP KEYSCAN
DELAY1:MOV R2,#0FH
LOOP10:MOV R3,0FAH
LOOP20:DJNZ R3,LOOP20
   DJNE R2,LOOP10
      RET
KEY:LJMP MAIN
TAB:DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH,77H,7CH,39H,5EH,79H,71H
END