multmodp
p = multmodp(x2n_table[k & 31], p);
x2n_table[n] = p = (z_crc_t)multmodp(p, p);
ltl[k][i] = q = (z_crc_t)multmodp(i << 24, p);
crc = multmodp(Z_BATCH_ZEROS, crc) ^ crc1;
crc = multmodp(Z_BATCH_ZEROS, crc) ^ crc2;
crc = multmodp(val, crc) ^ crc1;
crc = multmodp(val, crc) ^ crc2;
return multmodp(op, crc1 & 0xffffffff) ^ (crc2 & 0xffffffff);