>22|0;;){fA=X+(U<<2)|0;a:{t:{if(b[0|(O=(X+4096|0)+U|0)]){if((0|P)!=a[fA>>2])break a}else{if(a[fA>>2]=P,e[0|O]=1,255<(0|H))break t;H=H+1|0}U=P;break o}H=257;break e}U=U+1&1023}}y=y