seek =$0a26 curtrk_smc =$0a2b phase_smc =$0a31 driveon =$0a9d wait_1s =$0aaf driveoff =$0a22 switch_drive1 =$08af switch_drive2 =$08be load_new =$0aba load_address =$0ad3 load_track=load_address+1 load_sector=load_address+2 load_length=load_address+3