BT848_DSTATUS_HLOC
if (0 == (dstatus & BT848_DSTATUS_HLOC))
if (btread(BT848_DSTATUS)&BT848_DSTATUS_HLOC)
if (0 == (btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC)) {
dstat & BT848_DSTATUS_HLOC
signal = btread(BT848_DSTATUS) & BT848_DSTATUS_HLOC;