diff --git a/src/ExtMath.h b/src/ExtMath.h
index 94c6debf3..b209ccc39 100644
--- a/src/ExtMath.h
+++ b/src/ExtMath.h
@@ -32,7 +32,7 @@ CC_API double Math_Sin(double x);
 CC_API double Math_Cos(double x);
 float Math_SinF(float x);
 float Math_CosF(float x);
-double Math_Atan2(double x, double y);\
+double Math_Atan2(double x, double y);
 
 /* Computes loge(x). Can also be used to approximate logy(x). */
 /* e.g. for log3(x), use: Math_Log(x)/log(3) */
diff --git a/src/Graphics_D3D9.c b/src/Graphics_D3D9.c
index 52faf6fe5..436f75b21 100644
--- a/src/Graphics_D3D9.c
+++ b/src/Graphics_D3D9.c
@@ -81,7 +81,7 @@ static void CreateD3D9Instance(void) {
 }
 
 static void FindCompatibleViewFormat(void) {
-	static const D3DFORMAT formats[4] = { D3DFMT_X8R8G8B8, D3DFMT_R8G8B8, D3DFMT_R5G6B5, D3DFMT_X1R5G5B5 };
+	static const D3DFORMAT formats[] = { D3DFMT_X8R8G8B8, D3DFMT_R8G8B8, D3DFMT_R5G6B5, D3DFMT_X1R5G5B5 };
 	cc_result res;
 	int i;
 
@@ -94,7 +94,7 @@ static void FindCompatibleViewFormat(void) {
 }
 
 static void FindCompatibleDepthFormat(void) {
-	static const D3DFORMAT formats[6] = { D3DFMT_D32, D3DFMT_D24X8, D3DFMT_D24S8, D3DFMT_D24X4S4, D3DFMT_D16, D3DFMT_D15S1 };
+	static const D3DFORMAT formats[] = { D3DFMT_D32, D3DFMT_D24X8, D3DFMT_D24S8, D3DFMT_D24X4S4, D3DFMT_D16, D3DFMT_D15S1 };
 	cc_result res;
 	int i;
 
diff --git a/src/Platform_3DS.c b/src/Platform_3DS.c
index f2d0600ab..ed2693ced 100644
--- a/src/Platform_3DS.c
+++ b/src/Platform_3DS.c
@@ -187,9 +187,12 @@ static cc_result File_Do(cc_file* file, const cc_string* path, int mode) {
 	char str[NATIVE_STR_LEN];
 	GetNativePath(str, path);
 
-	Platform_Log1("Opening file: %c", str);
 	*file = open(str, mode, 0666); // FS has no permissions anyways
-	return *file == -1 ? errno : 0;
+	//return *file == -1 ? errno : 0;
+	
+	int ERR = *file == -1 ? errno : 0;
+	Platform_Log2("Open %s = %i", path, &ERR);
+	return ERR;
 }
 
 cc_result File_Open(cc_file* file, const cc_string* path) {
@@ -518,13 +521,21 @@ cc_bool DynamicLib_DescribeError(cc_string* dst) {
 *#########################################################################################################################*/
 #define SOC_CTX_ALIGN 0x1000
 #define SOC_CTX_SIZE  0x1000 * 128
+static void CreateRootDirectory(const char* path) {
+	// create root directories (no permissions anyways)
+	int res = mkdir(path, 0666);
+	if (res >= 0) return;
+	
+	int err = errno;
+	Platform_Log2("mkdir %c FAILED: %i", path, &err);
+}
 
 void Platform_Init(void) { 
 	Platform_SingleProcess = true;
 	
 	// create root directories (no permissions anyways)
-	mkdir("sdmc://3ds",            0666);
-	mkdir("sdmc://3ds/ClassiCube", 0666);
+	CreateRootDirectory("sdmc://3ds");
+	CreateRootDirectory("sdmc://3ds/ClassiCube");
 	
 	// See https://github.com/devkitPro/libctru/blob/master/libctru/include/3ds/services/soc.h
 	//  * @param context_addr Address of a page-aligned (0x1000) buffer to be used.
@@ -567,4 +578,4 @@ cc_result Platform_Encrypt(const void* data, int len, cc_string* dst) {
 cc_result Platform_Decrypt(const void* data, int len, cc_string* dst) {
 	return ERR_NOT_SUPPORTED;
 }
-#endif
+#endif
\ No newline at end of file
diff --git a/src/Vorbis.c b/src/Vorbis.c
index 1075366ed..d75c35842 100644
--- a/src/Vorbis.c
+++ b/src/Vorbis.c
@@ -194,6 +194,7 @@ static int iLog(int x) {
 	return bits;
 }
 
+/* https://en.wikipedia.org/wiki/Single-precision_floating-point_format */
 /* Float consists of: */
 /* - 1 bit for sign */
 /* - 8 bits for biased exponent */
diff --git a/src/Window_3DS.c b/src/Window_3DS.c
index 6f76fb83d..3d0ba103c 100644
--- a/src/Window_3DS.c
+++ b/src/Window_3DS.c
@@ -88,10 +88,11 @@ void Window_ProcessEvents(double delta) {
 	Input_SetNonRepeatable(KeyBinds[KEYBIND_RIGHT], mods & KEY_DRIGHT);
 	Input_SetNonRepeatable(IPT_RIGHT,               mods & KEY_DRIGHT);
 	
-	Input_SetNonRepeatable(KeyBinds[KEYBIND_FORWARD], mods & KEY_DUP);
-	Input_SetNonRepeatable(IPT_UP,                    mods & KEY_DUP);
-	Input_SetNonRepeatable(KeyBinds[KEYBIND_BACK],    mods & KEY_DDOWN);
-	Input_SetNonRepeatable(IPT_DOWN,                  mods & KEY_DDOWN);
+	// NOTE: KEY_DUP and KEY_DDOWN are deliberately swapped here
+	Input_SetNonRepeatable(KeyBinds[KEYBIND_FORWARD], mods & KEY_DDOWN);
+	Input_SetNonRepeatable(IPT_UP,                    mods & KEY_DDOWN);
+	Input_SetNonRepeatable(KeyBinds[KEYBIND_BACK],    mods & KEY_DUP);
+	Input_SetNonRepeatable(IPT_DOWN,                  mods & KEY_DUP);
 	
 	if (hidKeysHeld() & KEY_TOUCH) {
 		int x, y;
@@ -155,7 +156,6 @@ void Window_DrawFramebuffer(Rect2D r) {
 	}
 	// TODO implement
 	// TODO gspWaitForVBlank();
-	Platform_LogConst("DRAW FB!!!");
 	gfxFlushBuffers();
 	//gfxSwapBuffers();
 	// TODO: tearing??