无锡科技职业学院
setb wela; clr wela; mov 50h,#5h call delayxms ret
delayxms:mov 52h,#1 ;50h,51h,52h用于延时 50h为参数x 延时1*x ms delaya: mov 51h,#125 djnz 51h,$ djnz 52h,delaya djnz 50h,delayxms ret ;延时返回
table:db 3fh,06h,5bh,4fh,66h,6dh,7dh,07h, db 7fh,6fh,77h,7ch,39h,5eh,79h,71h
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