private unsafe bool Loop21()
{
var cartesian = CartesianProduct.Create(Enumerable.Repeat(Enumerable.Range(0, 2048), missCount));
fixed(uint *wPt = &sha.w[0], hPt = &sha.hashState[0], wrd = &wordIndexes[0])
fixed(int *mi = &missingIndexes[0])
{
wPt[7] = 0b10000000_00000000_00000000_00000000U;
wPt[15] = 224;
foreach (var item in cartesian)
{
int j = 0;
foreach (var k in item)
{
wrd[mi[j]] = (uint)k;
j++;
}
wPt[0] = wrd[0] << 21 | wrd[1] << 10 | wrd[2] >> 1;
wPt[1] = wrd[2] << 31 | wrd[3] << 20 | wrd[4] << 9 | wrd[5] >> 2;
wPt[2] = wrd[5] << 30 | wrd[6] << 19 | wrd[7] << 8 | wrd[8] >> 3;
wPt[3] = wrd[8] << 29 | wrd[9] << 18 | wrd[10] << 7 | wrd[11] >> 4;
wPt[4] = wrd[11] << 28 | wrd[12] << 17 | wrd[13] << 6 | wrd[14] >> 5;
wPt[5] = wrd[14] << 27 | wrd[15] << 16 | wrd[16] << 5 | wrd[17] >> 6;
wPt[6] = wrd[17] << 26 | wrd[18] << 15 | wrd[19] << 4 | wrd[20] >> 7;
sha.Compress28(hPt, wPt);
if ((wrd[20] & 0b111_1111) == hPt[0] >> 25)
{
StringBuilder sb = new StringBuilder(21);
for (int i = 0; i < 20; i++)
{
sb.Append($"{allWords[wrd[i]]} ");
}
// no space at the end.
sb.Append($"{allWords[wrd[20]]}");
SetBip32(Encoding.UTF8.GetBytes(sb.ToString()));
}
}
}
return(Final.Count != 0);
}
