shuma0-9.txt

//下面是画圆的程序

DUAN EQU 8004H
WEI EQU 8002H

ORG 0000H
LJMP MAIN
 ORG 0BH
LJMP INT_T0



MAIN:
         MOV TMOD,#01H
        MOV TH0,#3CH
        MOV TL0,#0B0H
        SETB TR0
        SETB ET0
        SETB EA
        MOV R1,#00H

              MOV DPTR, #DUAN
         MOV  A,  #0FFH
         MOVX @DPTR,A
         
         MOV DPTR,#WEI
         MOV A,#0100001B
         MOVX @DPTR,A
         
         

         
         
         
         
LOOP:      SJMP LOOP

         
INT_T0:
        MOV TH0,#3CH
        MOV TL0,#0B0H

        INC R1
SHU0:     CJNE R1,#20,SHU1       
         MOV DPTR, #DUAN
         MOV  A,  #3FH
         MOVX @DPTR,A
         
         MOV DPTR,#WEI
         MOV A,#0100001B
         MOVX @DPTR,A

SHU1:    CJNE R1,#40,SHU2        
         MOV DPTR, #DUAN
         MOV  A,  #06H
         MOVX @DPTR,A
         
         MOV DPTR,#WEI
         MOV A,#0100001B
         MOVX @DPTR,A

        
        

SHU2:    CJNE R1,#60,SHU3 
         MOV DPTR, #DUAN
         MOV  A,  #5BH
         MOVX @DPTR,A
         
         MOV DPTR,#WEI
         MOV A,#0100001B
         MOVX @DPTR,A
         
SHU3:     CJNE R1,#80,SHU4  
         MOV DPTR, #DUAN
         MOV  A,  #4FH
         MOVX @DPTR,A
         
         MOV DPTR,#WEI
         MOV A,#0100001B
         MOVX @DPTR,A

SHU4:     CJNE R1,#100,SHU5  
         MOV DPTR, #DUAN
         MOV  A,  #66H
         MOVX @DPTR,A
         
         MOV DPTR,#WEI
         MOV A,#0100001B
         MOVX @DPTR,A



SHU5:     CJNE R1,#120,SHU6  
         MOV DPTR, #DUAN
         MOV  A,  #6DH
         MOVX @DPTR,A
         
         MOV DPTR,#WEI
         MOV A,#0100001B
         MOVX @DPTR,A




SHU6:     CJNE R1,#140,SHU7 
         MOV DPTR, #DUAN
         MOV  A,  #7DH
         MOVX @DPTR,A
         
         MOV DPTR,#WEI
         MOV A,#0100001B
         MOVX @DPTR,A


SHU7:     CJNE R1,#160,SHU8 
         MOV DPTR, #DUAN
         MOV  A,  #07H
         MOVX @DPTR,A
         
         MOV DPTR,#WEI
         MOV A,#0100001B
         MOVX @DPTR,A


 SHU8:     CJNE R1,#180,SHU9 
         MOV DPTR, #DUAN
         MOV  A,  #7FH
         MOVX @DPTR,A
         
         MOV DPTR,#WEI
         MOV A,#0100001B
         MOVX @DPTR,A
         
 SHU9:     CJNE R1,#200,TUI
         MOV DPTR, #DUAN
         MOV  A,  #3FH
         MOVX @DPTR,A
         
         MOV DPTR,#WEI
         MOV A,#0100001B
         MOVX @DPTR,A
         MOV R1,#00H
        

TUI:      
           RETI