ex5101.asm

DVCC-jh+ c51单片机试验操作程序源代码（键盘实验 二极管等）

       ORG 0000H
       LJMP START

       ORG 0030H
START: MOV A,#01H
LOOP:  MOV P1,A     ;累加器内容输出到P1口
       MOV R0,#0FFH
DE1:   MOV R1,#0FFH ;延时
DE2:   DJNZ R1,DE2
       DJNZ R0,DE1
       RL A
       SJMP LOOP
       END

       ORG 0000H
       LJMP START
       ORG 0030H
START: ORL P1,#0FH
LOOP:  MOV A,P1
       SWAP A
       ORL A,#0FH
       MOV P1,A
       SJMP LOOP
       END
       ORG 0000H
       LJMP START
       ORG 0030H
START: ORL P1,#0FH
LOOP:  MOV A,P1
       SWAP A
       ORL A,#0FH
       MOV P1,A
       SJMP LOOP
       END
       ORG 0000H
       LJMP START
       ORG 0030H
START: ORL P1,#0FH
LOOP:  MOV A,P1
       SWAP A
       ORL A,#0FH
       MOV P1,A
       SJMP LOOP
       END
       ORG 0000H
       LJMP START
       ORG 0030H
START: ORL P1,#0FH
LOOP:  MOV A,P1
       SWAP A
       ORL A,#0FH
       MOV P1,A
       SJMP LOOP
       END
       ORG 0000H
       LJMP START
       ORG 0030H
START: ORL P1,#0FH
LOOP:  MOV A,P1
       SWAP A
       ORL A,#0FH
       MOV P1,A
       SJMP LOOP
       END
       ORG 0000H
       LJMP START
       ORG 0030H
START: ORL P1,#0FH
LOOP:  MOV A,P1
       SWAP A
       ORL A,#0FH
       MOV P1,A
       SJMP LOOP
       END
       ORG 0000H
       LJMP START
       ORG 0030H
START: ORL P1,#0FH
LOOP:  MOV A,P1
       SWAP A
       ORL A,#0FH
       MOV P1,A
       SJMP LOOP
       END
       ORG 0000H
       LJMP START
       ORG 0030H
START: ORL P1,#0FH
LOOP:  MOV A,P1
       SWAP A
       ORL A,#0FH
       MOV P1,A
       SJMP LOOP
       END
       ORG 0000H
       LJMP START
       ORG 0030H
START: ORL P1,#0FH
LOOP:  MOV A,P1
       SWAP A
       ORL A,#0FH
       MOV P1,A
       SJMP LOOP
       END
       ORG 0000H
       LJMP START
       ORG 0030H
START: ORL P1,#0FH
LOOP:  MOV A,P1
       SWAP A
       ORL A,#0FH
       MOV P1,A
       SJMP LOOP
       END
       ORG 0000H
       LJMP START
       ORG 0030H
START: ORL P1,#0FH
LOOP:  MOV A,P1
       SWAP A
       ORL A,#0FH
       MOV P1,A
       SJMP LOOP
       END