- bp->q = pgen("q", MP_NEW, x, event, ectx, n, pgen_gcdstep, &g,
+ t = mp_lsl(t, MP_ONE, nbits - 1);
+ mp_div(&t, 0, t, bp->p);
+ if (MP_CMP(x, <, t)) x = mp_leastcongruent(x, t, x, g.jp.m);
+ bp->q = pgen("q", MP_NEWSEC, x, event, ectx, n, pgen_gcdstep, &g,