Changes
60 PRINT "Copyright (c) Jon Bradbury 2017"
70 PRINT
80 REM for XDRV release v1.11 use fidStart%=&HD000: fidEnd%=&HD4FF: fidSec%=3 85 REM for XDRV release v1.12 use fidStart%=&HD000: fidEnd%=&HD544: fidSec%=3 87 fidStart%=&HD000: fidEnd%=&HD544: fidSec%=3
90 cfBase%=&HC8
100 cfData%=cfBase%