DS_IN_QUEUE
pDCB->DCBstatus &= ~DS_IN_QUEUE;
(pACB->DCBarray[target_id][0].DCBstatus & DS_IN_QUEUE))
pDCB->DCBstatus |= DS_IN_QUEUE;
(pACB->DCBarray[target_id][0].DCBstatus & DS_IN_QUEUE))
if (!(pDCB->DCBstatus & DS_IN_QUEUE)) {