X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fbitboard.cpp;h=e4e409583bcd4b71ebc0bc853746a7c6b0062f1c;hp=04e5204b5d680d417c7df587379e3d3a9f0c35d5;hb=e9296d694c72c2378b71ad29cfff2f2c7b45bb0c;hpb=fb4b4f772e270033560e429a694376caa03a3f52 diff --git a/src/bitboard.cpp b/src/bitboard.cpp index 04e5204b..e4e40958 100644 --- a/src/bitboard.cpp +++ b/src/bitboard.cpp @@ -154,7 +154,7 @@ Square pop_1st_bit(Bitboard* bb) { void bitboards_init() { for (Bitboard b = 0; b < 256; b++) - BitCount8Bit[b] = (uint8_t)count_1s(b); + BitCount8Bit[b] = (uint8_t)popcount(b); for (Square s = SQ_A1; s <= SQ_H8; s++) { @@ -321,7 +321,7 @@ namespace { // the number of 1s of the mask. Hence we deduce the size of the shift to // apply to the 64 or 32 bits word to get the index. masks[s] = sliding_attacks(pt, s, 0) & ~edges; - shifts[s] = (Is64Bit ? 64 : 32) - count_1s(masks[s]); + shifts[s] = (Is64Bit ? 64 : 32) - popcount(masks[s]); // Use Carry-Rippler trick to enumerate all subsets of masks[s] and // store the corresponding sliding attacks bitboard in reference[].