kate/BadFish
1
0
Fork 0
mirror of https://github.com/sockspls/badfish synced 2025-07-11 19:49:14 +00:00
Code Issues Releases Wiki Activity

Better clarify DTZEntry keys

Browse source 
Calrify that DTZ entry is initialized with
the same color of the corresponding WDL
entry.
This commit is contained in:
Marco Costalba 2016-05-08 12:02:15 +02:00
parent 875441db2b
commit 79051949ca
1 changed files with 21 additions and 20 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

41
src/syzygy/tbprobe.cpp
View file

@ -107,7 +107,7 @@ struct DTZEntry {
enum Flag { STM = 1, Mapped = 2, WinPlies = 4, LossPlies = 8 };
DTZEntry(const WDLEntry& wdl, Key keys[]);
DTZEntry(const WDLEntry& wdl, Key wdlKeys[]);
~DTZEntry();
bool init(const std::string& fname);
template<typename T> void do_init(T& e, uint8_t* data);
@ -535,12 +535,12 @@ WDLEntry::~WDLEntry()
}
}
DTZEntry::DTZEntry(const WDLEntry& wdl, Key keys[])
DTZEntry::DTZEntry(const WDLEntry& wdl, Key wdlKeys[])
{
memset(this, 0, sizeof(DTZEntry));
key = keys[WHITE];
key2 = keys[BLACK];
key = wdlKeys[0];
key2 = wdlKeys[1];
assert(key == wdl.key);
@ -1279,33 +1279,34 @@ int probe_dtz_table(const Position& pos, WDLScore wdl, int *success)
Key key = pos.material_key();
if (DTZTable.front().key != key && DTZTable.front().key2 != key) {
// Enforce "Most Recently Used" (MRU) order for DTZ_list
// Enforce "Most Recently Used" (MRU) order for DTZ list
for (auto it = DTZTable.begin(); it != DTZTable.end(); ++it)
if (it->key == key) {
// Move to front without deleting the element
DTZTable.splice(DTZTable.begin(),DTZTable, it);
DTZTable.splice(DTZTable.begin(), DTZTable, it);
break;
}
// If still not found, add a new one
if (DTZTable.front().key != key) {
WDLEntry* ptr = WDLHash[key];
if (!ptr) {
WDLEntry* wdlEntry = WDLHash[key];
if (!wdlEntry) {
*success = 0;
return 0;
}
StateInfo st;
Position p;
std::string code = file_name(pos, ptr->key != key);
std::string fname = code + ".rtbz";
code.erase(code.find('v'), 1);
std::string wdlCode = file_name(pos, wdlEntry->key != key);
std::string fname = wdlCode + ".rtbz";
wdlCode.erase(wdlCode.find('v'), 1);
Key keys[] = { p.set(code, WHITE, &st).material_key(),
p.set(code, BLACK, &st).material_key() };
Key wdlKeys[] = { p.set(wdlCode, WHITE, &st).material_key(),
p.set(wdlCode, BLACK, &st).material_key() };
DTZTable.push_front(DTZEntry(*ptr, keys));
DTZTable.push_front(DTZEntry(*wdlEntry, wdlKeys));
if (!DTZTable.front().init(fname)) {
// In case file is not found init() fails, but we leave
@ -1324,14 +1325,12 @@ int probe_dtz_table(const Position& pos, WDLScore wdl, int *success)
}
}
DTZEntry* ptr = &DTZTable.front();
if (!ptr->baseAddress) {
if (!DTZTable.front().baseAddress) {
*success = 0;
return 0;
}
return probe_table(pos, ptr, wdl, success);
return probe_table(pos, &DTZTable.front(), wdl, success);
}
// Add underpromotion captures to list of captures.
@ -1418,9 +1417,11 @@ int probe_dtz_no_ep(Position& pos, int *success)
WDLScore wdl = probe_ab(pos, WDLLoss, WDLWin, success);
if (*success == 0) return 0;
if (!*success)
return 0;
if (wdl == WDLDraw) return 0;
if (wdl == WDLDraw)
return 0;
if (*success == 2)
return wdl == WDLWin ? 1 : 101;