这是一个流水灯....调试时 JMP EXT0 JMP EXT1 CALL DELAY 错误！请高手指点
ORG 00H
JMP START
ORG 03H
JMP EXT0
ORG 13H
JMP EXT1
START: MOV IE, #10000101B
MOV IP, #00000100B
MOV TCON, #00000000B
MOV SP, #70H
MOV A, #00
MOV P1, A
MOV A,#00
LOOP: MOV P1, A
CALL DELAY
CPL A
JMP LOOP
EXTO: PUSH ACC
PUSH PSW
SETB RS0
CLR RS1
MOV R3, #03
LOOP1: MOV A, #0FFH
CLR C
MOV R2, #08H
LOOP2: RLC A
MOV P1, A
CALL DELAY
DJNZ R2, LOOP2
MOV R2, #07
LOOP3: RRC A
MOV P1, A
CALL DELAY
DJNZ R2, LOOP3
DJNZ R3, LOOP1
POP PSW
POP ACC
RETI
ETX1: PUSH ACC
PUSH PSW
SETB RS1
CLR RS0
MOV R3, #03
LOOP4: MOV A, #0FCH
MOV R2, #06
LOOP5: RL A
MOV P1, A
CALL DELAY
DJNZ R2, LOOP5
MOV R2, #06
LOOP6: RR A
MOV P1,A
CALL DELAY
DJNZ R2, LOOP6
DJNZ R3, LOOP4
POP PSW
POP ACC
RETI
RELAY: MOV R5, #20
D1: MOV R6, #20
D2: MOV R7, #248
DJNZ R7, $
DJNZ R6, D2
DJNZ R5, D1
RET
END
如何改呢 我是自学的
尝试改 但不知从那下手
情高手指点迷津
谢谢
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