77 	var from = move & 0xFF;
83 	var pieceType = g_board[from] & 0x7;
93 		if (moveFrom != from &&
97 			if ((moveFrom & 0xF0) == (from & 0xF0)) {
100 			if ((moveFrom & 0x0F) == (from & 0x0F)) {
108 			result += FormatSquare(from).charAt(0);
110 			result += FormatSquare(from).charAt(1);
112 			result += FormatSquare(from);
115 		result += FormatSquare(from).charAt(0);
329     var from = g_pieceList[pieceIdx++];
330     while (from != 0) {
331         from = g_pieceList[pieceIdx++];
337     var from, to, mob, pieceIdx;
344     from = g_pieceList[pieceIdx++];
345     while (from != 0) {
346         mob += mobUnit[g_board[from + 31]];
347         mob += mobUnit[g_board[from + 33]];
348         mob += mobUnit[g_board[from + 14]];
349         mob += mobUnit[g_board[from - 14]];
350         mob += mobUnit[g_board[from - 31]];
351         mob += mobUnit[g_board[from - 33]];
352         mob += mobUnit[g_board[from + 18]];
353         mob += mobUnit[g_board[from - 18]];
354         from = g_pieceList[pieceIdx++];
361     from = g_pieceList[pieceIdx++];
362     while (from != 0) {
363         to = from - 15; while (g_board[to] == 0) { to -= 15; mob++; }
372         to = from - 17; while (g_board[to] == 0) { to -= 17; mob++; }
381         to = from + 15; while (g_board[to] == 0) { to += 15; mob++; }
390         to = from + 17; while (g_board[to] == 0) { to += 17; mob++; }
399         from = g_pieceList[pieceIdx++];
406     from = g_pieceList[pieceIdx++];
407     while (from != 0) {
408         to = from - 1; while (g_board[to] == 0) { to--; mob++;}  if (g_board[to] & enemy) mob++;
409         to = from + 1; while (g_board[to] == 0) { to++; mob++; } if (g_board[to] & enemy) mob++;
410 …      to = from + 16; while (g_board[to] == 0) { to += 16; mob++; } if (g_board[to] & enemy) mob++;
411 …      to = from - 16; while (g_board[to] == 0) { to -= 16; mob++; } if (g_board[to] & enemy) mob++;
412         from = g_pieceList[pieceIdx++];
419     from = g_pieceList[pieceIdx++];
420     while (from != 0) {
421 …      to = from - 15; while (g_board[to] == 0) { to -= 15; mob++; } if (g_board[to] & enemy) mob++;
422 …      to = from - 17; while (g_board[to] == 0) { to -= 17; mob++; } if (g_board[to] & enemy) mob++;
423 …      to = from + 15; while (g_board[to] == 0) { to += 15; mob++; } if (g_board[to] & enemy) mob++;
424 …      to = from + 17; while (g_board[to] == 0) { to += 17; mob++; } if (g_board[to] & enemy) mob++;
425         to = from - 1; while (g_board[to] == 0) { to--; mob++; } if (g_board[to] & enemy) mob++;
426         to = from + 1; while (g_board[to] == 0) { to++; mob++; } if (g_board[to] & enemy) mob++;
427 …      to = from + 16; while (g_board[to] == 0) { to += 16; mob++; } if (g_board[to] & enemy) mob++;
428 …      to = from - 16; while (g_board[to] == 0) { to -= 16; mob++; } if (g_board[to] & enemy) mob++;
429         from = g_pieceList[pieceIdx++];
629     var from = hashMove & 0xFF;
631     var ourPiece = g_board[from];
646         var dir = to - from;
669             if (g_board[from - 16] != 0) return false;
674             if (g_board[from + 16] != 0) return false;
683         return IsSquareAttackableFrom(to, from);
1660     var from = move & 0xFF;
1662     var piece = g_board[from];
1678             if (IsSquareAttackable(from + 1, otherColor) ||
1679             	IsSquareAttackable(from + 2, otherColor)) {
1701             if (IsSquareAttackable(from - 1, otherColor) ||
1702             	IsSquareAttackable(from - 2, otherColor)) {
1742         var diff = to - from;
1750     g_hashKeyLow ^= g_zobristLow[from][piece & 0xF];
1751     g_hashKeyHigh ^= g_zobristHigh[from][piece & 0xF];
1757     g_castleRights &= g_castleRightsMask[from] & g_castleRightsMask[to];
1759     g_baseEval -= pieceSquareAdj[piece & 0x7][me == 0 ? flipTable[from] : from];
1762     g_pieceIndex[to] = g_pieceIndex[from];
1799         g_board[to] = g_board[from];
1803     g_board[from] = pieceEmpty;
1816         if (ExposesCheck(from, kingPos)) {
1839             g_inCheck = ExposesCheck(from, theirKingPos);
1880     var from = move & 0xFF;
1907         g_board[from] = piece;
1909         var pawnType = g_board[from] & 0xF;
1923         g_board[from] = g_board[to];
1938     g_pieceIndex[from] = g_pieceIndex[to];
1939     g_pieceList[((piece & 0xF) << 4) | g_pieceIndex[from]] = from;
1950 function ExposesCheck(from, kingPos){  argument
1951     var index = kingPos - from + 128;
1969 function IsSquareOnPieceLine(target, from) {  argument
1970     var index = from - target + 128;
1971     var piece = g_board[from];
1975 function IsSquareAttackableFrom(target, from){  argument
1976     var index = from - target + 128;
1977     var piece = g_board[from];
1982 			from += inc;
1983 			if (from == target)
1985 		} while (g_board[from] == 0);
2013 function GenerateMove(from, to) {  argument
2014     return from | (to << 8);
2017 function GenerateMove(from, to, flags){
2018     return from | (to << 8) | flags;
2038     var from, to, piece, pieceIdx;
2042     from = g_pieceList[pieceIdx++];
2043     while (from != 0) {
2044         GeneratePawnMoves(moveStack, from);
2045         from = g_pieceList[pieceIdx++];
2050 	from = g_pieceList[pieceIdx++];
2051 	while (from != 0) {
2052 		to = from + 31; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2053 		to = from + 33; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2054 		to = from + 14; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2055 		to = from - 14; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2056 		to = from - 31; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2057 		to = from - 33; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2058 		to = from + 18; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2059 		to = from - 18; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2060 		from = g_pieceList[pieceIdx++];
2065 	from = g_pieceList[pieceIdx++];
2066 	while (from != 0) {
2067 …to = from - 15; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); t…
2068 …to = from - 17; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); t…
2069 …to = from + 15; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); t…
2070 …to = from + 17; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); t…
2071 		from = g_pieceList[pieceIdx++];
2076 	from = g_pieceList[pieceIdx++];
2077 	while (from != 0) {
2078 …to = from - 1; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); to…
2079 …to = from + 1; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); to…
2080 …to = from + 16; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); t…
2081 …to = from - 16; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); t…
2082 		from = g_pieceList[pieceIdx++];
2087 	from = g_pieceList[pieceIdx++];
2088 	while (from != 0) {
2089 …to = from - 15; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); t…
2090 …to = from - 17; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); t…
2091 …to = from + 15; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); t…
2092 …to = from + 17; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); t…
2093 …to = from - 1; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); to…
2094 …to = from + 1; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); to…
2095 …to = from + 16; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); t…
2096 …to = from - 16; while (g_board[to] == 0) { moveStack[moveStack.length] = GenerateMove(from, to); t…
2097 		from = g_pieceList[pieceIdx++];
2103 		from = g_pieceList[pieceIdx];
2104 		to = from - 15; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2105 		to = from - 17; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2106 		to = from + 15; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2107 		to = from + 17; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2108 		to = from - 1; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2109 		to = from + 1; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2110 		to = from - 16; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2111 		to = from + 16; if (g_board[to] == 0) moveStack[moveStack.length] = GenerateMove(from, to);
2119                 if (g_board[from + 1] == pieceEmpty && g_board[from + 2] == pieceEmpty) {
2120 …                 moveStack[moveStack.length] = GenerateMove(from, from + 0x02, moveflagCastleKing);
2125 …if (g_board[from - 1] == pieceEmpty && g_board[from - 2] == pieceEmpty && g_board[from - 3] == pie…
2126 …                moveStack[moveStack.length] = GenerateMove(from, from - 0x02, moveflagCastleQueen);
2134     var from, to, piece, pieceIdx;
2140     from = g_pieceList[pieceIdx++];
2141     while (from != 0) {
2142         to = from + inc - 1;
2144             MovePawnTo(moveStack, from, to);
2147         to = from + inc + 1;
2149             MovePawnTo(moveStack, from, to);
2152         from = g_pieceList[pieceIdx++];
2159         var from = g_enPassentSquare - (inc + 1);
2160         if ((g_board[from] & 0xF) == pawn) {
2161             moveStack[moveStack.length] = GenerateMove(from, g_enPassentSquare, moveflagEPC);
2164         from = g_enPassentSquare - (inc - 1);
2165         if ((g_board[from] & 0xF) == pawn) {
2166             moveStack[moveStack.length] = GenerateMove(from, g_enPassentSquare, moveflagEPC);
2172 	from = g_pieceList[pieceIdx++];
2173 	while (from != 0) {
2174 		to = from + 31; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2175 		to = from + 33; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2176 		to = from + 14; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2177 		to = from - 14; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2178 		to = from - 31; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2179 		to = from - 33; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2180 		to = from + 18; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2181 		to = from - 18; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2182 		from = g_pieceList[pieceIdx++];
2187 	from = g_pieceList[pieceIdx++];
2188 	while (from != 0) {
2189 …to = from; do { to -= 15; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack…
2190 …to = from; do { to -= 17; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack…
2191 …to = from; do { to += 15; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack…
2192 …to = from; do { to += 17; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack…
2193 		from = g_pieceList[pieceIdx++];
2198 	from = g_pieceList[pieceIdx++];
2199 	while (from != 0) {
2200 …to = from; do { to--; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack.len…
2201 …to = from; do { to++; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack.len…
2202 …to = from; do { to -= 16; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack…
2203 …to = from; do { to += 16; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack…
2204 		from = g_pieceList[pieceIdx++];
2209 	from = g_pieceList[pieceIdx++];
2210 	while (from != 0) {
2211 …to = from; do { to -= 15; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack…
2212 …to = from; do { to -= 17; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack…
2213 …to = from; do { to += 15; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack…
2214 …to = from; do { to += 17; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack…
2215 …to = from; do { to--; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack.len…
2216 …to = from; do { to++; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack.len…
2217 …to = from; do { to -= 16; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack…
2218 …to = from; do { to += 16; } while (g_board[to] == 0); if (g_board[to] & enemy) moveStack[moveStack…
2219 		from = g_pieceList[pieceIdx++];
2225 		from = g_pieceList[pieceIdx];
2226 		to = from - 15; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2227 		to = from - 17; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2228 		to = from + 15; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2229 		to = from + 17; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2230 		to = from - 1; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2231 		to = from + 1; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2232 		to = from - 16; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2233 		to = from + 16; if (g_board[to] & enemy) moveStack[moveStack.length] = GenerateMove(from, to);
2250 function GeneratePawnMoves(moveStack, from) {  argument
2251     var piece = g_board[from];
2256 	var to = from + inc;
2258 		MovePawnTo(moveStack, from, to, pieceEmpty);
2261 		if ((((from & 0xF0) == 0x30) && color != colorWhite) ||
2262 		    (((from & 0xF0) == 0x80) && color == colorWhite)) {
2265 				moveStack[moveStack.length] = GenerateMove(from, to);
2286     var from = move & 0xFF;
2289     var fromPiece = g_board[from];
2326     g_board[from] = 0;
2330                 g_board[from] = fromPiece;
2342         g_board[from] = fromPiece;
2356     g_board[from] = fromPiece;