startblockval
da_old = startblockval(PREV.br_startblock);
startblockval(PREV.br_startblock));
startblockval(PREV.br_startblock) -
startblockval(PREV.br_startblock));
startblockval(PREV.br_startblock) -
da_new = startblockval(PREV.br_startblock) +
startblockval(RIGHT.br_startblock);
da_old = startblockval(got->br_startblock);
oldlen = startblockval(left.br_startblock) +
startblockval(new->br_startblock) +
startblockval(right.br_startblock);
oldlen = startblockval(left.br_startblock) +
startblockval(new->br_startblock);
oldlen = startblockval(new->br_startblock) +
startblockval(right.br_startblock);