diff --git a/ExternalCoreProjects/Virtu/Memory.cs b/ExternalCoreProjects/Virtu/Memory.cs
index 199110de20..b85abd7fdc 100644
--- a/ExternalCoreProjects/Virtu/Memory.cs
+++ b/ExternalCoreProjects/Virtu/Memory.cs
@@ -338,12 +338,12 @@ namespace Jellyfish.Virtu
 		{
 			return address switch
 			{
-				> 0 and < 0x0200 => _ramMainRegion0001[address - 0],
-				> 0x0200 and < 0xC000 => _ramMainRegion02BF[address - 0x0200],
-				> 0xC000 and < 0xD000 => _ramMainBank1RegionD0DF[address - 0xC000],
-				> 0xD000 and < 0xE000 => _ramMainBank2RegionD0DF[address - 0xD000],
-				> 0xE000 and < 0x10000 => _ramMainRegionE0FF[address - 0xE000],
-				_ => throw new InvalidOperationException()
+				>= 0 and < 0x0200 => _ramMainRegion0001[address - 0],
+				>= 0x0200 and < 0xC000 => _ramMainRegion02BF[address - 0x0200],
+				>= 0xC000 and < 0xD000 => _ramMainBank1RegionD0DF[address - 0xC000],
+				>= 0xD000 and < 0xE000 => _ramMainBank2RegionD0DF[address - 0xD000],
+				>= 0xE000 and < 0x10000 => _ramMainRegionE0FF[address - 0xE000],
+				_ => throw new InvalidOperationException($"{nameof(address)} out of range ({address})")
 			};
 		}
 
@@ -351,23 +351,23 @@ namespace Jellyfish.Virtu
 		{
 			switch (address)
 			{
-				case > 0 and < 0x0200:
+				case >= 0 and < 0x0200:
 					_ramMainRegion0001[address - 0] = value;
 					break;
-				case > 0x0200 and < 0xC000:
+				case >= 0x0200 and < 0xC000:
 					_ramMainRegion02BF[address - 0x0200] = value;
 					break;
-				case > 0xC000 and < 0xD000:
+				case >= 0xC000 and < 0xD000:
 					_ramMainBank1RegionD0DF[address - 0xC000] = value;
 					break;
-				case > 0xD000 and < 0xE000:
+				case >= 0xD000 and < 0xE000:
 					_ramMainBank2RegionD0DF[address - 0xD000] = value;
 					break;
-				case > 0xE000 and < 0x10000:
+				case >= 0xE000 and < 0x10000:
 					_ramMainRegionE0FF[address - 0xE000] = value;
 					break;
 				default:
-					throw new InvalidOperationException();
+					throw new InvalidOperationException($"{nameof(address)} out of range ({address})");
 			}
 		}
 
@@ -375,12 +375,12 @@ namespace Jellyfish.Virtu
 		{
 			return address switch
 			{
-				> 0 and < 0x0200 => _ramAuxRegion0001[address - 0],
-				> 0x0200 and < 0xC000 => _ramAuxRegion02BF[address - 0x0200],
-				> 0xC000 and < 0xD000 => _ramAuxBank1RegionD0DF[address - 0xC000],
-				> 0xD000 and < 0xE000 => _ramAuxBank2RegionD0DF[address - 0xD000],
-				> 0xE000 and < 0x10000 => _ramAuxRegionE0FF[address - 0xE000],
-				_ => throw new InvalidOperationException()
+				>= 0 and < 0x0200 => _ramAuxRegion0001[address - 0],
+				>= 0x0200 and < 0xC000 => _ramAuxRegion02BF[address - 0x0200],
+				>= 0xC000 and < 0xD000 => _ramAuxBank1RegionD0DF[address - 0xC000],
+				>= 0xD000 and < 0xE000 => _ramAuxBank2RegionD0DF[address - 0xD000],
+				>= 0xE000 and < 0x10000 => _ramAuxRegionE0FF[address - 0xE000],
+				_ => throw new InvalidOperationException($"{nameof(address)} out of range ({address})")
 			};
 		}
 
@@ -388,23 +388,23 @@ namespace Jellyfish.Virtu
 		{
 			switch (address)
 			{
-				case > 0 and < 0x0200:
+				case >= 0 and < 0x0200:
 					_ramAuxRegion0001[address - 0] = value;
 					break;
-				case > 0x0200 and < 0xC000:
+				case >= 0x0200 and < 0xC000:
 					_ramAuxRegion02BF[address - 0x0200] = value;
 					break;
-				case > 0xC000 and < 0xD000:
+				case >= 0xC000 and < 0xD000:
 					_ramAuxBank1RegionD0DF[address - 0xC000] = value;
 					break;
-				case > 0xD000 and < 0xE000:
+				case >= 0xD000 and < 0xE000:
 					_ramAuxBank2RegionD0DF[address - 0xD000] = value;
 					break;
-				case > 0xE000 and < 0x10000:
+				case >= 0xE000 and < 0x10000:
 					_ramAuxRegionE0FF[address - 0xE000] = value;
 					break;
 				default:
-					throw new InvalidOperationException();
+					throw new InvalidOperationException($"{nameof(address)} out of range ({address})");
 			}
 		}
 
diff --git a/References/Virtu.dll b/References/Virtu.dll
index c18d3b4149..8b0923f614 100644
Binary files a/References/Virtu.dll and b/References/Virtu.dll differ