WIDEXFER
target_settings |= WIDEXFER;
con_opts |= WIDEXFER;
scsirate &= ~WIDEXFER;
scsirate |= WIDEXFER;
targ_scsirate & WIDEXFER,
| (scsirate & WIDEXFER);
if ((scsirate & ~WIDEXFER) == 0 && offset != 0)
if ((scsirate & WIDEXFER) != 0
scsirate |= WIDEXFER;
scsirate |= WIDEXFER;