hex editor: handle tiny (even 0 size) memory domains without crashing

2020-06-18 03:07:44 -04:00 · 2020-06-18 03:07:44 -04:00 · 1efc91cb94
parent 01cfe12db6
commit 1efc91cb94
1 changed files with 5 additions and 2 deletions
--- a/src/BizHawk.Client.EmuHawk/tools/HexEditor/HexEditor.cs
+++ b/src/BizHawk.Client.EmuHawk/tools/HexEditor/HexEditor.cs
@ -554,10 +554,13 @@ namespace BizHawk.Client.EmuHawk
 			end = Math.Min(end, _domain.Size);
 			end &= -(long)dataSize;

-			var range = new MutableRange<long>(start, end - 1);
-
 			var dict = new Dictionary<long, long>();

+			if (end <= start)
+				return dict;
+
+			var range = new MutableRange<long>(start, end - 1);
+
 			switch (dataSize)
 			{
 				default: