static mp *fdbl(field *ff, mp *d, mp *x) {
fctx_prime *f = (fctx_prime *)ff; d = mp_lsl(d, x, 1);
- if (MP_CMP(d, >, f->mm.m)) d = mp_sub(d, d, f->mm.m);
+ if (MP_CMP(d, >=, f->mm.m)) d = mp_sub(d, d, f->mm.m);
return (d);
}
static mp *ftpl(field *ff, mp *d, mp *x) {
fctx_prime *f = (fctx_prime *)ff; MP_DEST(d, MP_LEN(x) + 1, x->f);
- MPX_UMULN(d->v, d->vl, x->v, x->vl, 3);
- while (MP_CMP(d, >, f->mm.m)) d = mp_sub(d, d, f->mm.m);
+ MPX_UMULN(d->v, d->vl, x->v, x->vl, 3); d->f &= ~MP_UNDEF;
+ while (MP_CMP(d, >=, f->mm.m)) d = mp_sub(d, d, f->mm.m);
return (d);
}
static mp *fqdl(field *ff, mp *d, mp *x) {
fctx_prime *f = (fctx_prime *)ff; d = mp_lsl(d, x, 2);
- while (MP_CMP(d, >, f->mm.m)) d = mp_sub(d, d, f->mm.m);
+ while (MP_CMP(d, >=, f->mm.m)) d = mp_sub(d, d, f->mm.m);
return (d);
}