diff --git a/tileimpl-h2x1.cpp b/tileimpl-h2x1.cpp
index d2cf1bf6..37143add 100644
--- a/tileimpl-h2x1.cpp
+++ b/tileimpl-h2x1.cpp
@@ -10,7 +10,7 @@
 namespace TileImpl {
 
 	template<class MATH, class BPSTART>
-	void HiresBase<MATH, BPSTART>::Draw(uint8 N, uint8 M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2)
+	void HiresBase<MATH, BPSTART>::Draw(int N, int M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2)
 	{
 		if (Z1 > GFX.DB[Offset + 2 * N] && (M))
 		{
diff --git a/tileimpl-n1x1.cpp b/tileimpl-n1x1.cpp
index 9a9c900f..1c37c600 100644
--- a/tileimpl-n1x1.cpp
+++ b/tileimpl-n1x1.cpp
@@ -10,7 +10,7 @@
 namespace TileImpl {
 
 	template<class MATH, class BPSTART>
-	void Normal1x1Base<MATH, BPSTART>::Draw(uint8 N, uint8 M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2)
+	void Normal1x1Base<MATH, BPSTART>::Draw(int N, int M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2)
 	{
 		(void) OffsetInLine;
 		if (Z1 > GFX.DB[Offset + N] && (M))
diff --git a/tileimpl-n2x1.cpp b/tileimpl-n2x1.cpp
index cf688f9d..4025c694 100644
--- a/tileimpl-n2x1.cpp
+++ b/tileimpl-n2x1.cpp
@@ -10,7 +10,7 @@
 namespace TileImpl {
 
 	template<class MATH, class BPSTART>
-	void Normal2x1Base<MATH, BPSTART>::Draw(uint8 N, uint8 M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2)
+	void Normal2x1Base<MATH, BPSTART>::Draw(int N, int M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2)
 	{
 		(void) OffsetInLine;
 		if (Z1 > GFX.DB[Offset + 2 * N] && (M))
diff --git a/tileimpl.h b/tileimpl.h
index 9b7e86d4..6ebfa4ff 100644
--- a/tileimpl.h
+++ b/tileimpl.h
@@ -38,7 +38,7 @@ namespace TileImpl {
 		enum { Pitch = BPSTART::Pitch };
 		typedef BPSTART bpstart_t;
 
-		static void Draw(uint8 N, uint8 M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2);
+		static void Draw(int N, int M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2);
 	};
 
 	template<class MATH>
@@ -52,7 +52,7 @@ namespace TileImpl {
 		enum { Pitch = BPSTART::Pitch };
 		typedef BPSTART bpstart_t;
 
-		static void Draw(uint8 N, uint8 M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2);
+		static void Draw(int N, int M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2);
 	};
 
 	template<class MATH>
@@ -75,7 +75,7 @@ namespace TileImpl {
 		enum { Pitch = BPSTART::Pitch };
 		typedef BPSTART bpstart_t;
 
-		static void Draw(uint8 N, uint8 M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2);
+		static void Draw(int N, int M, uint32 Offset, uint32 OffsetInLine, uint8 Pix, uint8 Z1, uint8 Z2);
 	};
 
 	template<class MATH>