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align=left>;小喇叭滴滴聲。<BR>;***************************************************************************<BR>;*
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*<BR>;***************************************************************************<BR>org
0000h<BR>ajmp main<BR>org 0030h<BR>main:<BR><BR>CPL P3.3
;取反小喇叭（p3.3)<BR>lcall delay ;調(diào)用延時<BR>ajmp main ;反復(fù)循環(huán)<BR>delay:
;延時子程序<BR>mov r7,#00h<BR>LLA: DJNZ
R7,LLA<BR>ret<BR><BR>end<BR></P></TD></TR></TBODY></TABLE></DIV></CENTER></BODY></HTML>
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