dt/int/sc_nbutils.cc

619 // - ulen >= vlen
620 // - wlen >= sc_max(ulen, vlen) + 1
622 vec_add(int ulen, const sc_digit *u, int vlen, const sc_digit *v, sc_digit *w)
626     sc_assert((vlen > 0) && (v != NULL));
628     sc_assert(ulen >= vlen);
632     const sc_digit *vend = (v + vlen);
661 // - ulen >= vlen
663 vec_add_on(int ulen, sc_digit *ubegin, int vlen, const sc_digit *v)
667     sc_assert((vlen > 0) && (v != NULL));
668     sc_assert(ulen >= vlen);
673     const sc_digit *vend = (v + vlen);
703 // - ulen < vlen
707             vlen,
713     sc_assert((vlen > 0) && (v != NULL));
714     sc_assert(ulen < vlen);
799 // - ulen >= vlen
800 // - wlen >= sc_max(ulen, vlen)
802 vec_sub(int ulen, const sc_digit *u, int vlen, const sc_digit *v, sc_digit *w)
806     sc_assert((vlen > 0) && (v != NULL));
808     sc_assert(ulen >= vlen);
812     const sc_digit *vend = (v + vlen);
841 // - ulen >= vlen
843 vec_sub_on(int ulen, sc_digit *ubegin, int vlen, const sc_digit *v)
847     sc_assert((vlen > 0) && (v != NULL));
848     sc_assert(ulen >= vlen);
853     const sc_digit *vend = (v + vlen);
878 // - ulen <= vlen or ulen > ulen
880 vec_sub_on2(int ulen, sc_digit *ubegin, int vlen, const sc_digit *v)
884     sc_assert((vlen > 0) && (v != NULL));
888     const sc_digit *uend = (u + sc_min(ulen, vlen));
963 vec_mul(int ulen, const sc_digit *u, int vlen, const sc_digit *vbegin,
1025     sc_assert((vlen > 0) && (vbegin != NULL));
1031     const sc_digit *vend = (vbegin + vlen);
1135 vec_div_large(int ulen, const sc_digit *u, int vlen, const sc_digit *v,
1140     sc_assert((vlen > 0) && (v != NULL));
1152     int ylen = BYTES_PER_DIGIT * vlen;
1176     ylen = vec_to_char(vlen, v, ylen, y);
1332 vec_rem_large(int ulen, const sc_digit *u, int vlen, const sc_digit *v,
1337     sc_assert((vlen > 0) && (v != NULL));
1344     int ylen = BYTES_PER_DIGIT * vlen;
1365     ylen = vec_to_char(vlen, v, ylen, y);
1515 // Set (uchar) v = (sc_digit) u. Return the new vlen.
1517 vec_to_char(int ulen, const sc_digit *u, int vlen, uchar *v)
1521     sc_assert((vlen > 0) && (v != NULL));
1528     vlen = 0;
1532         int nsr = ((vlen << LOG2_BITS_PER_BYTE) % BITS_PER_DIGIT);
1540         v[vlen++] = (uchar)(d & BYTE_MASK);
1546     return vlen;
1552 vec_from_char(int ulen, const uchar *u, int vlen, sc_digit *v)
1556     sc_assert((vlen > 0) && (v != NULL));
1560     sc_digit *vend = (v + vlen);