PCE GameDB overhaul

BizHawk.Emulation/Consoles/PC Engine/Compat.txt

@@ -13,13 +13,23 @@ Air Zonk          - OK now - previous problem game
 Cadash            - Req HBlank hack to eliminate minor visual artifact
 Chase HQ          - Press start -"O" sprite gets left on screen. probably timing on SATB DMA
 Coryoon           - OK now - previous problem game
-Cross Wiber       - Minor; Raster on wrong line
+Cross Wiber       - Req HBlank hack to eliminate minor visual artifact
 Dungeon Explorer  - OK now - previous problem game
 Lode Runner       - OK now - previous problem game
 MML Demo          - Echo channels are too loud (equal volume!)
 Outrun            - Req HBlank hack to eliminate visual artifact
 Tiger Road        - On second level, sprites should be getting masked from the top status area somehow
 
+Bouken Danshaku Don - The Lost Sunheart (J)    - Uses LFO in intro sound strongly!
+City Hunter- uses SET on ORA instruction
+Eagan's Rendered Sprite Demo by Eagan Rackley (PD) - demonstrates sprites that shouldnt be displayed
+Games Express CD Card 1993 - dont forget to treat as a turbocd system card
+Puzzle Boy(J) - screen vert height is fucked up...needs to be masked or just clipped?
+Yo, Bro - game screen black, can hear game playing though
+Youkai Douchuuki(J) - part of bg missing? wtf.
+
+Note, check overdump roms From A  - Final Lap Twin
+
 ===================================
 Games that need TV Emulation (to varying degrees)
 ===================================

BizHawk.Emulation/Database/Database.cs

@@ -120,6 +120,10 @@ namespace BizHawk
                         Game.Name = items[2];
                         Game.System = items[3];
                         Game.MetaData = items.Length >= 6 ? items[5] : null;
+
+                        if (db.ContainsKey(Game.hash))
+                            Console.WriteLine("gamedb: Multiple hash entries {0}, duplicate detected on {1}",Game.hash, Game.Name);
+
                         db[Game.hash] = Game;
                     } catch
                     {
@@ -136,11 +140,11 @@ namespace BizHawk
 			if (db.TryGetValue(hash, out ret))
 				return ret;
 
-			hash = Util.BytesToHexString(System.Security.Cryptography.SHA1.Create().ComputeHash(RomData));
-			if (db.TryGetValue(hash, out ret))
-				return ret;
+            hash = Util.BytesToHexString(System.Security.Cryptography.MD5.Create().ComputeHash(RomData));
+            if (db.TryGetValue(hash, out ret))
+                return ret;
 
-			hash = Util.BytesToHexString(System.Security.Cryptography.MD5.Create().ComputeHash(RomData));
+			hash = Util.BytesToHexString(System.Security.Cryptography.SHA1.Create().ComputeHash(RomData));
 			if (db.TryGetValue(hash, out ret))
 				return ret;
 
@@ -149,7 +153,9 @@ namespace BizHawk
             Game.hash = hash;
             Game.MetaData = "NotInDatabase";
             Game.Status = RomStatus.NotInDatabase;
-            Console.WriteLine("Game was not in DB. CRC: {0:X8} ", CRC32.Calculate(RomData));
+            Console.WriteLine("Game was not in DB. CRC: {0:X8} MD5: {1}", 
+                CRC32.Calculate(RomData),
+                Util.BytesToHexString(System.Security.Cryptography.MD5.Create().ComputeHash(RomData)));
 
             string ext = Path.GetExtension(fileName).ToUpperInvariant();