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高手幫忙看看那本人這個(gè)小程序哪里出錯(cuò)了
ORG 0000H
MAIN:
ACALL ZY_A0
ACALL YY_A1
ACALL YY_A2
ACALL YY_A3
ACALL DELAY
ZY_A0:
MOV A, #0FEH
MOV R1, #08H
LOOP0:
MOV P0, A
ACALL DELAY
RL A
DJNZ R1, LOOP0
YY_A1:
MOV A, #7FH
MOV R1, #08H
LOOP1:
MOV P2, A
ACALL DELAY
RR A
DJNZ R1, LOOP1
YY_A2:
MOV A, #7FH
MOV R1, #08H
LOOP2:
MOV P3, A
ACALL A
RR A
DJNZ R1, LOOP2
YY_A3:
MOV A, #7FH
MOV R1, #08H
LOOP3:
MOV P1, A
ACALL DELAY
RR A
DJNZ R1, LOOP3
AJMP MAIN
DELAY:
MOV R3, #10
D1:
MOV R4, #200
D2:
MOV R5, #248
D3:
DJNZ R5, D3
NOP
DJNZ R4, D2
DJNZ R3, D1
RET
END | 
