diff --git a/actor.cpp b/actor.cpp
index bc85cef7c0d..bea7a669e44 100644
--- a/actor.cpp
+++ b/actor.cpp
@@ -109,7 +109,7 @@ int Scumm::getAngleFromPos(int x, int y)
 {
 	if (_gameId == GID_DIG) {
 		double temp = atan2((double)x, (double)-y);
-		return Scumm::normalizeAngle((int)(temp * 180 / 3.1415926535));
+		return normalizeAngle((int)(temp * 180 / 3.1415926535));
 	} else {
 		if (abs(y) * 2 < abs(x)) {
 			if (x > 0)
@@ -189,7 +189,7 @@ int Actor::remapDirection(int dir)
 			if (specdir & 0x8000) {
 				dir = specdir & 0x3FFF;
 			} else {
-				error("getProgrDirChange: special dir not implemented");
+				error("remapDirection: special dir not implemented");
 			}
 		}
 
@@ -231,7 +231,7 @@ int Actor::remapDirection(int dir)
 		}
 	}
 	/* Or 1024 in to signal direction interpolation should be done */
-	return Scumm::normalizeAngle(dir) | 1024;
+	return normalizeAngle(dir) | 1024;
 }
 
 int Actor::updateActorDirection()
@@ -245,12 +245,12 @@ int Actor::updateActorDirection()
 
 	dirType = _vm->akos_hasManyDirections(this);
 
-	from = Scumm::toSimpleDir(dirType, facing);
+	from = toSimpleDir(dirType, facing);
 	dir = remapDirection(newDirection);
 	shouldInterpolate = (dir & 1024);
-	to = Scumm::toSimpleDir(dirType, dir & 1023);
+	to = toSimpleDir(dirType, dir & 1023);
 	diff = to - from;
-	num = Scumm::numSimpleDirDirections(dirType);
+	num = numSimpleDirDirections(dirType);
 
 	if (shouldInterpolate) {
 		// Turn left or right, depending on which is shorter.
@@ -266,7 +266,7 @@ int Actor::updateActorDirection()
 	} else
 		from = to;
 
-	dir = Scumm::fromSimpleDir(dirType, from & (num - 1));
+	dir = fromSimpleDir(dirType, from % num);
 
 	return dir;
 }
@@ -464,7 +464,7 @@ void Actor::animateActor(int anim)
 	} else {
 
 		cmd = anim >> 2;
-		dir = Scumm::oldDirToNewDir(anim & 3);
+		dir = oldDirToNewDir(anim & 3);
 
 		// Convert into old cmd code
 		cmd = 0x3F - cmd + 2;
@@ -497,7 +497,7 @@ void Actor::setDirection(int direction)
 	if (facing == direction)
 		return;
 
-	facing = Scumm::normalizeAngle(direction);
+	facing = normalizeAngle(direction);
 
 	if (costume == 0)
 		return;
diff --git a/costume.cpp b/costume.cpp
index ad005e823ec..f440c151972 100644
--- a/costume.cpp
+++ b/costume.cpp
@@ -725,7 +725,7 @@ void CostumeRenderer::proc6_ami()
 	byte width, height, pcolor;
 	int color;
 	int step = _scaleIndexXStep;
-	int  x;
+	uint x;
 	uint y;
 	uint scrheight;
 
@@ -1359,7 +1359,7 @@ void CostumeRenderer::setPalette(byte *palette)
 
 void CostumeRenderer::setFacing(uint16 facing)
 {
-	_mirror = Scumm::newDirToOldDir(facing) != 0 || (_loaded._ptr[7] & 0x80);
+	_mirror = newDirToOldDir(facing) != 0 || (_loaded._ptr[7] & 0x80);
 }
 
 void CostumeRenderer::setCostume(int costume)
diff --git a/scumm.h b/scumm.h
index 29be4fa217b..f65a6b6e704 100644
--- a/scumm.h
+++ b/scumm.h
@@ -783,16 +783,7 @@ public:
 
 	uint32 *_classData;
 
-	static int newDirToOldDir(int dir);
-	static int oldDirToNewDir(int dir);
-
-	static int normalizeAngle(int angle);
 	int getAngleFromPos(int x, int y);
-	static int fromSimpleDir(int dirtype, int dir);
-	static int toSimpleDir(int dirtype, int dir);
-	static int numSimpleDirDirections(int dirType);
-	void startAnimActorEx(Actor *a, int frame, int direction);
-	int getProgrDirChange(Actor *a, int mode);
 
 	void walkActors();
 	void playActorSounds();
@@ -1491,4 +1482,14 @@ void CDECL warning(const char *s, ...);
 void CDECL debug(int level, const char *s, ...);
 void checkHeap();
 
+/* Direction conversion functions (between old dir and new dir format) */
+int newDirToOldDir(int dir);
+int oldDirToNewDir(int dir);
+
+int normalizeAngle(int angle);
+int fromSimpleDir(int dirtype, int dir);
+int toSimpleDir(int dirtype, int dir);
+int numSimpleDirDirections(int dirType);
+
+
 #endif
diff --git a/scummvm.cpp b/scummvm.cpp
index e09fdd4e3cc..ae8341dcf44 100644
--- a/scummvm.cpp
+++ b/scummvm.cpp
@@ -1103,7 +1103,16 @@ void Scumm::destroy()
 	free(_classData);
 }
 
-int Scumm::newDirToOldDir(int dir)
+const int new_dir_table[4] = {
+	270,
+	90,
+	180,
+	0,
+};
+
+const int16 many_direction_tab[16] = {71, 109, 251, 289, -1, -1, -1, -1, 22, 72, 107, 157, 202, 252, 287, 337};
+
+int newDirToOldDir(int dir)
 {
 	if (dir >= 71 && dir <= 109)
 		return 1;
@@ -1114,29 +1123,20 @@ int Scumm::newDirToOldDir(int dir)
 	return 3;
 }
 
-const int new_dir_table[4] = {
-	270,
-	90,
-	180,
-	0,
-};
-
-int Scumm::oldDirToNewDir(int dir)
+int oldDirToNewDir(int dir)
 {
 	return new_dir_table[dir];
 }
 
 
-int Scumm::numSimpleDirDirections(int dirType)
+int numSimpleDirDirections(int dirType)
 {
 	return dirType ? 8 : 4;
 }
 
-const int16 many_direction_tab[16] = {71, 109, 251, 289, -1, -1, -1, -1, 22, 72, 107, 157, 202, 252, 287, 337};
-
 
 /* Convert an angle to a simple direction */
-int Scumm::toSimpleDir(int dirType, int dir)
+int toSimpleDir(int dirType, int dir)
 {
 	int num = dirType ? 8 : 4;
 	const int16 *dirtab = &many_direction_tab[dirType * 8];
@@ -1149,7 +1149,7 @@ int Scumm::toSimpleDir(int dirType, int dir)
 }
 
 /* Convert a simple direction to an angle */
-int Scumm::fromSimpleDir(int dirType, int dir)
+int fromSimpleDir(int dirType, int dir)
 {
 	if (!dirType)
 		return dir * 90;
@@ -1158,7 +1158,7 @@ int Scumm::fromSimpleDir(int dirType, int dir)
 }
 
 
-int Scumm::normalizeAngle(int angle)
+int normalizeAngle(int angle)
 {
 	int temp;
 
diff --git a/sdl_gl.cpp b/sdl_gl.cpp
index cb4905972c2..ebdbe6398b8 100644
--- a/sdl_gl.cpp
+++ b/sdl_gl.cpp
@@ -237,7 +237,7 @@ OSystem *OSystem_SDL_create(int gfx_mode, bool full_screen) {
 void OSystem_SDL::set_palette(const byte *colors, uint start, uint num) {
 	const byte *b = colors;
 	uint i;
-	SDL_Color *base = _cur_pal + start;
+
 	for(i=0;i!=num;i++) {
 	    fb2gl_palette(i+start,b[0],b[1],b[2]);
 	    b += 4;