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Remove defined(IS_64BIT) in init_sliding_attacks()

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No functional change bith in 32 and 64 bits.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2011-01-29 13:59:23 +01:00
parent f3e0b32def
commit 69726f4df3
3 changed files with 33 additions and 42 deletions
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20
src/bitboard.cpp
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@@ -451,27 +451,19 @@ namespace {
void init_sliding_attacks(Bitboard attacks[], int attackIndex[], Bitboard mask[],
const int shift[], const Bitboard mult[], int deltas[][2]) {
Bitboard b, v;
int i, j, index;
for (int i = 0, index = 0; i < 64; i++)
for (i = index = 0; i < 64; i++)
{
attackIndex[i] = index;
mask[i] = sliding_attacks(i, 0, deltas, 1, 6, 1, 6);
#if defined(IS_64BIT)
int j = (1 << (64 - shift[i]));
#else
int j = (1 << (32 - shift[i]));
#endif
j = 1 << ((CpuIs64Bit ? 64 : 32) - shift[i]);
for (int k = 0; k < j; k++)
{
Bitboard b = index_to_bitboard(k, mask[i]);
#if defined(IS_64BIT)
Bitboard v = b * mult[i];
#else
unsigned v = int(b) * int(mult[i]) ^ int(b >> 32) * int(mult[i] >> 32);
#endif
b = index_to_bitboard(k, mask[i]);
v = CpuIs64Bit ? b * mult[i] : unsigned(b * mult[i] ^ (b >> 32) * (mult[i] >> 32));
attacks[index + (v >> shift[i])] = sliding_attacks(i, b, deltas, 0, 7, 0, 7);
}
index += j;