我是新来汇编语言。我想运行代码为8051控制器，但它不能正常工作。它给出了语法错误。请帮助我

org
mov a,#38h
acall comnwrt
mov delay
acall a,30eh
acall comnwrt
mov delay
acall a,#01
acall comnwrt
mov delay
acall #06h
acall comnwrt
mov delay
acall a,#84h
acall delay
mov a,#'N'
acall datawrt
sjmp again
mov p1,a
clr p2,0
clr p2.1
setb p2.2
clr p2.2
ret e
mov p1.a
setb p2.0
clr p2.0
mov r3,#50
mov r4,#255
djnz r4,here
djnz r3,here
end

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