Bus Error testing results (word access):
(on a TT with TOS 3.06)

$FF8002 - $FF8200
$FF8210 - $FF8240
$FF8280 - $FF8400
$FF8600 - $FF8604
$FF8610 - $FF8700
$FF8720 - $FF8780
$FF8790 - $FF8800
$FF8914 - $FF8920
$FF8940 - $FF8960
$FF8964 - $FF8C00
$FF8C20 - $FF8C80
$FF8C90 - $FF8E00
$FF8E10 - $FF9000
$FF9002 - $FF9200
$FF9202 - $FFFA00
$FFFA40 - $FFFA80
$FFFAC0 - $FFFC00
$FFFC10 - $FFFFFE

EOF!