seek	=$1128
curtrk_smc	=$1128
phase_smc	=$1133
driveon	=$11a4
wait_1s	=$11b3
driveoff	=$1124
;switch_drive1	=$08af
;switch_drive2	=$08be
load_new	=$11be
load_address	=$11d7
load_track=load_address+1
load_sector=load_address+2
load_length=load_address+3