047Ch   MOV  A,FST
047Eh   JB   ACC.3,04BFh
<b>0481h   JNB  SCON.1,0481h</b>
0484h   ORL  FCF,#40h
0487h   MOV  B4h,#55h
048Ah   MOV  B5h,#AAh
048Dh   MOV  B2h,#08h
        <i>[...]</i>
04BFh   CLR  A
04C0h   RET