I guess you meant srl a: SRL A 3FCB 2 NOP 1 > > >That's strange. Make sure you have the following entries in your TASM80.tab >file: > >SLA A 27CB 2 NOP 1 >SRA A 2FCB 2 NOP 1 > > >> >>Why am I getting an error when I try SRL A or SRA A?? >> >