B_R
assert(bp->b_type == (B_H | B_R));
bp->b_type &= ~B_R;
if ((bp->b_type & B_R) == 0) {
bp->b_type = B_H | B_R;
if (bp->b_type == (B_H | B_R)) {
if ((bp->b_flags & (B_R | B_L)) == 0) {
bp->b_type |= B_R;
(bp->b_type == (B_H | B_R)) ? "HR" :