From 92aa23de6fd8e9020d05dc9d2abc32dcfbb183d5 Mon Sep 17 00:00:00 2001
From: goyuken <goyuken@4bbf4f03-6f44-549e-7e59-35d4b0962838>
Date: Wed, 5 Feb 2014 19:08:04 +0000
Subject: [PATCH] nes ppu viewer: correct tile number display bug (was always
 wrong).  in addition, show more informative data for 8x16 sprite tile number

---
 BizHawk.Client.EmuHawk/tools/NES/NESPPU.cs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/BizHawk.Client.EmuHawk/tools/NES/NESPPU.cs b/BizHawk.Client.EmuHawk/tools/NES/NESPPU.cs
index bb24b93145..708b6e4fe4 100644
--- a/BizHawk.Client.EmuHawk/tools/NES/NESPPU.cs
+++ b/BizHawk.Client.EmuHawk/tools/NES/NESPPU.cs
@@ -618,7 +618,13 @@ namespace BizHawk.Client.EmuHawk
 				flags += "Front";
 			}
 
-			var tile = _nes.ppu.OAM[spriteNumber * 1];
+			int tile = _nes.ppu.OAM[spriteNumber * 4 + 1];
+			if (is8x16)
+			{
+				if ((tile & 1) != 0)
+					tile += 256;
+				tile &= ~1;
+			}
 
 			AddressLabel.Text = "Number: " + string.Format("{0:X2}", spriteNumber);
 			ValueLabel.Text = "X: " + string.Format("{0:X2}", x);