mirror of
https://github.com/OMGeeky/hcsalmon1-Chess-Engine-Test.git
synced 2025-12-31 16:19:58 +01:00
148 lines
3.3 KiB
Odin
148 lines
3.3 KiB
Odin
package main
|
|
|
|
SQUARE_BBS: [64]u64 = [64]u64{
|
|
1,
|
|
2,
|
|
4,
|
|
8,
|
|
16,
|
|
32,
|
|
64,
|
|
128,
|
|
256,
|
|
512,
|
|
1024,
|
|
2048,
|
|
4096,
|
|
8192,
|
|
16384,
|
|
32768,
|
|
65536,
|
|
131072,
|
|
262144,
|
|
524288,
|
|
1048576,
|
|
2097152,
|
|
4194304,
|
|
8388608,
|
|
16777216,
|
|
33554432,
|
|
67108864,
|
|
134217728,
|
|
268435456,
|
|
536870912,
|
|
1073741824,
|
|
2147483648,
|
|
4294967296,
|
|
8589934592,
|
|
17179869184,
|
|
34359738368,
|
|
68719476736,
|
|
137438953472,
|
|
274877906944,
|
|
549755813888,
|
|
1099511627776,
|
|
2199023255552,
|
|
4398046511104,
|
|
8796093022208,
|
|
17592186044416,
|
|
35184372088832,
|
|
70368744177664,
|
|
140737488355328,
|
|
281474976710656,
|
|
562949953421312,
|
|
1125899906842624,
|
|
2251799813685248,
|
|
4503599627370496,
|
|
9007199254740992,
|
|
18014398509481984,
|
|
36028797018963968,
|
|
72057594037927936,
|
|
144115188075855872,
|
|
288230376151711744,
|
|
576460752303423488,
|
|
1152921504606846976,
|
|
2305843009213693952,
|
|
4611686018427387904,
|
|
9223372036854775808,
|
|
};
|
|
|
|
ONE_U64:u64 : 1;
|
|
|
|
BP_STARTING_POSITIONS:u64 : 65280;
|
|
WP_STARTING_POSITIONS:u64 : 71776119061217280;
|
|
BK_STARTING_POSITION:u64 : 16;
|
|
WK_STARTING_POSITION:u64 : 1152921504606846976;
|
|
BN_STARTING_POSITIONS:u64 : 66;
|
|
WN_STARTING_POSITIONS: u64 : 4755801206503243776;
|
|
WR_STARTING_POSITIONS: u64 : 9295429630892703744;
|
|
BR_STARTING_POSITIONS: u64 : 129;
|
|
BB_STARTING_POSITIONS: u64 : 36;
|
|
WB_STARTING_POSITIONS: u64 : 2594073385365405696;
|
|
WQ_STARTING_POSITION: u64 : 576460752303423488;
|
|
BQ_STARTING_POSITION: u64 : 8;
|
|
|
|
EMPTY_BITBOARD: u64 : 0;
|
|
|
|
MAX_ULONG: u64 : 18446744073709551615;
|
|
|
|
MAGIC: u64 : 0x03f79d71b4cb0a89;
|
|
|
|
@(rodata)
|
|
DEBRUIJN64: [64]int = [64]int{
|
|
|
|
0, 47, 1, 56, 48, 27, 2, 60,
|
|
57, 49, 41, 37, 28, 16, 3, 61,
|
|
54, 58, 35, 52, 50, 42, 21, 44,
|
|
38, 32, 29, 23, 17, 11, 4, 62,
|
|
46, 55, 26, 59, 40, 36, 15, 53,
|
|
34, 51, 20, 43, 31, 22, 10, 45,
|
|
25, 39, 14, 33, 19, 30, 9, 24,
|
|
13, 18, 8, 12, 7, 6, 5, 63,
|
|
};
|
|
|
|
BitscanForward :: proc(tempBitboard: u64) -> int {
|
|
return (DEBRUIJN64[MAGIC*(tempBitboard~(tempBitboard-1))>>58]);
|
|
}
|
|
|
|
RANK_1_BITBOARD:u64: 18374686479671623680;
|
|
RANK_2_BITBOARD:u64: 71776119061217280;
|
|
RANK_3_BITBOARD:u64: 280375465082880;
|
|
RANK_4_BITBOARD:u64: 1095216660480;
|
|
RANK_5_BITBOARD:u64: 4278190080;
|
|
RANK_6_BITBOARD:u64: 16711680;
|
|
RANK_7_BITBOARD:u64: 65280;
|
|
RANK_8_BITBOARD:u64: 255;
|
|
|
|
FILE_A_BITBOARD:u64: 72340172838076673;
|
|
FILE_B_BITBOARD:u64: 144680345676153346;
|
|
FILE_C_BITBOARD:u64: 289360691352306692;
|
|
FILE_D_BITBOARD:u64: 578721382704613384;
|
|
FILE_E_BITBOARD:u64: 1157442765409226768;
|
|
FILE_F_BITBOARD:u64: 2314885530818453536;
|
|
FILE_G_BITBOARD:u64: 4629771061636907072;
|
|
FILE_H_BITBOARD:u64: 9259542123273814144;
|
|
|
|
@(rodata)
|
|
SQ_CHAR_Y: [65]byte = [65]byte{
|
|
'8', '8', '8', '8', '8', '8', '8', '8',
|
|
'7', '7', '7', '7', '7', '7', '7', '7',
|
|
'6', '6', '6', '6', '6', '6', '6', '6',
|
|
'5', '5', '5', '5', '5', '5', '5', '5',
|
|
'4', '4', '4', '4', '4', '4', '4', '4',
|
|
'3', '3', '3', '3', '3', '3', '3', '3',
|
|
'2', '2', '2', '2', '2', '2', '2', '2',
|
|
'1', '1', '1', '1', '1', '1', '1', '1', 'A',
|
|
};
|
|
@(rodata)
|
|
SQ_CHAR_X: [65]byte = [65]byte{
|
|
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
|
|
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
|
|
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
|
|
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
|
|
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
|
|
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
|
|
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h',
|
|
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'N',
|
|
};
|