51 匯編 proteus 8位 16位流水燈

ID:333960 · 發表于 2018-5-20 09:41

匯編實現八位和十六位流水燈

代碼：
ORG 00H

START:MOV 30H,#0FFH
   MOV 31H,#0FFH
   MOV 32H,#0FFH
   CLR C
LOOP1:
   MOV A,30H
   RRC A
   MOV 30H,A
   CJNE A,#07FH,RLCP0
   CLR C
   MOV A,31H
   RLC A
   MOV 31H,A
   MOV P1,30H
   MOV P0,31H
   MOV P2,32H
   CALL DELAY
   JMP LOOP1
RLCP0:
   SETB C
   MOV A,31H
   RLC A
   MOV 31H,A
   MOV P1,30H
   MOV P0,31H
   MOV P2,32H
   CALL DELAY
   MOV A,30H
   CJNE A,#0FEH,LOOP1
   MOV 31H,#0FFH
   MOV 30H,#0FFH
   CLR C

LOOP2:
   MOV A,30H
   RRC A
   MOV 30H,A
   CJNE A,#07FH,RLCP2
   CLR C
   MOV A,32H
   RLC A
   MOV 32H,A
   MOV P1,30H
   MOV P0,31H
   MOV P2,32H
   CALL DELAY
   JMP LOOP2
RLCP2:
   SETB C
   MOV A,32H
   RLC A
   MOV 32H,A
   MOV P1,30H
   MOV P0,31H
   MOV P2,32H
   CALL DELAY
   MOV A,30H
   CJNE A,#0FEH,LOOP2
   MOV 31H,#0FFH
   MOV 30H,#0FFH
   JMP START

DELAY:MOV R3,#50
D1: MOV R4,#20
D2: MOV R5,#248
   DJNZ R5,$
   DJNZ R4,D2
   DJNZ R3,D1
   RET
   END

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51 匯編 proteus 8位 16位流水燈

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