add_bop
r = add_bop(smm, BOP_INC, b, e);
r = add_bop(smm, BOP_DEC, b, e);
r = add_bop(smm, BOP_INC, *b, *b + 1);
r = add_bop(smm, BOP_INC, b, e);
r = add_bop(smm, BOP_DEC, b, e);
r = add_bop(smm, BOP_INC, old_len, smm->begin);
r = add_bop(smm, BOP_INC, superblock, smm->begin);