#includereg51.h>#includestdio.h>#defineucharunsignedchar#defineuintunsignedint//sbitBEEP=P1;//
#includeREG51.H>#defineuintunsignedint#defineucharunsignedcharucharflag,p;sbitl5=P0^4;sbitbeep=P3
includereg52hdefineucharunsignedchardefineuintunsignedintsbitDSPORT=P3^7;sbitkey3=P3^2;sbitbeep=P1
