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bitboard.c
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bitboard.c
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#include "ark.h"
// Resets the frst bit set to 1 and returns the index
int popBit(U64 *bb){
for(int i = 0; i < 64; i++){
if(*bb & (1ULL << i)){
*bb &= ~(1ULL << i);
return i;
}
}
}
// Counts the number of 1 in the bitmap
int countBit(U64 bb){
int count = 0;
for(int i = 0; i < 64; i++){
if(bb & (1ULL << i)){
count++;
}
}
return count;
}
// Prints the bitboard to the console
void printBitBoard(U64 bb){
printf("\n\n");
U64 map = 1ULL;
for(int rank = RANK_8; rank >= RANK_1; rank--){
for(int file = FILE_A; file <= FILE_H; file++){
int sq = FR2SQ(file, rank);
int sq64 = SQ64(sq);
if(bb & (map << sq64)){
printf("1 ");
}else{
printf("0 ");
}
}
printf("\n");
}
printf("\n\n");
}