diff --git a/src/test.c b/src/test.c
index 5319c9e..b64dce2 100644
--- a/src/test.c
+++ b/src/test.c
@@ -11,24 +11,24 @@ static uint32_t bayer_matrix[256] = {
     /*
      * Black gamut
      */
-    0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
+    0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
 
     /*
      * Black to dark gray gradient
      */
-    0x00018000, 0x00018000, 0x00018000, 0x00018000, 0x00018000, 0x00018000,
-    0x00018020, 0x00018020, 0x00018020, 0x00018020, 0x00018020, 0x00018020,
-    0x000180a0, 0x000180a0, 0x000180a0, 0x000180a0, 0x000180a0, 0x000180a0,
-    0x0001a0a0, 0x0001a0a0, 0x0001a0a0, 0x0001a0a0, 0x0001a0a0, 0x0001a0a0,
+    0x00018000, 0x00018000, 0x00018000, 0x00018000, 0x00018000,
+    0x00018020, 0x00018020, 0x00018020, 0x00018020, 0x00018020,
+    0x000180a0, 0x000180a0, 0x000180a0, 0x000180a0, 0x000180a0,
+    0x0001a0a0, 0x0001a0a0, 0x0001a0a0, 0x0001a0a0, 0x0001a0a0,
     0x0001a4a0, 0x0001a4a0, 0x0001a4a0, 0x0001a4a0, 0x0001a4a0, 0x0001a4a0,
-    0x0001a4a1, 0x0001a4a1, 0x0001a4a1, 0x0001a4a1, 0x0001a4a1, 0x0001a4a1,
-    0x0001a4a5, 0x0001a4a5, 0x0001a4a5, 0x0001a4a5, 0x0001a4a5, 0x0001a4a5,
-    0x0001a5a5, 0x0001a5a5, 0x0001a5a5, 0x0001a5a5, 0x0001a5a5, 0x0001a5a5,
+    0x0001a4a1, 0x0001a4a1, 0x0001a4a1, 0x0001a4a1, 0x0001a4a1,
+    0x0001a4a5, 0x0001a4a5, 0x0001a4a5, 0x0001a4a5, 0x0001a4a5,
+    0x0001a5a5, 0x0001a5a5, 0x0001a5a5, 0x0001a5a5, 0x0001a5a5,
     0x0001ada5, 0x0001ada5, 0x0001ada5, 0x0001ada5, 0x0001ada5, 0x0001ada5,
-    0x0001ada7, 0x0001ada7, 0x0001ada7, 0x0001ada7, 0x0001ada7, 0x0001ada7,
+    0x0001ada7, 0x0001ada7, 0x0001ada7, 0x0001ada7, 0x0001ada7,
     0x0001adaf, 0x0001adaf, 0x0001adaf, 0x0001adaf, 0x0001adaf,
     0x0001afaf, 0x0001afaf, 0x0001afaf, 0x0001afaf, 0x0001afaf,
-    0x0001df5f, 0x0001df5f, 0x0001df5f, 0x0001df5f, 0x0001df5f,
+    0x0001df5f, 0x0001df5f, 0x0001df5f, 0x0001df5f, 0x0001df5f, 0x0001df5f,
     0x0001df7f, 0x0001df7f, 0x0001df7f, 0x0001df7f, 0x0001df7f,
     0x0001dfff, 0x0001dfff, 0x0001dfff, 0x0001dfff, 0x0001dfff,
     0x0001ffff, 0x0001ffff, 0x0001ffff, 0x0001ffff, 0x0001ffff,
@@ -36,37 +36,37 @@ static uint32_t bayer_matrix[256] = {
     /*
      * Dark gray to light gray gradient
      */
-    0x01028000, 0x01028000, 0x01028000, 0x01028000, 0x01028000,
+    0x01028000, 0x01028000, 0x01028000, 0x01028000, 0x01028000, 0x01028000,
     0x01028020, 0x01028020, 0x01028020, 0x01028020, 0x01028020,
     0x010280a0, 0x010280a0, 0x010280a0, 0x010280a0, 0x010280a0,
     0x0102a0a0, 0x0102a0a0, 0x0102a0a0, 0x0102a0a0, 0x0102a0a0,
-    0x0102a4a0, 0x0102a4a0, 0x0102a4a0, 0x0102a4a0, 0x0102a4a0,
+    0x0102a4a0, 0x0102a4a0, 0x0102a4a0, 0x0102a4a0, 0x0102a4a0, 0x0102a4a0,
     0x0102a4a1, 0x0102a4a1, 0x0102a4a1, 0x0102a4a1, 0x0102a4a1,
     0x0102a4a5, 0x0102a4a5, 0x0102a4a5, 0x0102a4a5, 0x0102a4a5,
     0x0102a5a5, 0x0102a5a5, 0x0102a5a5, 0x0102a5a5, 0x0102a5a5,
-    0x0102ada5, 0x0102ada5, 0x0102ada5, 0x0102ada5, 0x0102ada5,
+    0x0102ada5, 0x0102ada5, 0x0102ada5, 0x0102ada5, 0x0102ada5, 0x0102ada5,
     0x0102ada7, 0x0102ada7, 0x0102ada7, 0x0102ada7, 0x0102ada7,
     0x0102adaf, 0x0102adaf, 0x0102adaf, 0x0102adaf, 0x0102adaf,
     0x0102afaf, 0x0102afaf, 0x0102afaf, 0x0102afaf, 0x0102afaf,
-    0x0102df5f, 0x0102df5f, 0x0102df5f, 0x0102df5f, 0x0102df5f,
+    0x0102df5f, 0x0102df5f, 0x0102df5f, 0x0102df5f, 0x0102df5f, 0x0102df5f,
     0x0102df7f, 0x0102df7f, 0x0102df7f, 0x0102df7f, 0x0102df7f,
     0x0102dfff, 0x0102dfff, 0x0102dfff, 0x0102dfff, 0x0102dfff,
     0x0102ffff, 0x0102ffff, 0x0102ffff, 0x0102ffff, 0x0102ffff,
 
     /* Light gray to white gradient */
-    0x02038000, 0x02038000, 0x02038000, 0x02038000, 0x02038000,
+    0x02038000, 0x02038000, 0x02038000, 0x02038000, 0x02038000, 0x02038000,
     0x02038020, 0x02038020, 0x02038020, 0x02038020, 0x02038020,
     0x020380a0, 0x020380a0, 0x020380a0, 0x020380a0, 0x020380a0,
     0x0203a0a0, 0x0203a0a0, 0x0203a0a0, 0x0203a0a0, 0x0203a0a0,
-    0x0203a4a0, 0x0203a4a0, 0x0203a4a0, 0x0203a4a0, 0x0203a4a0,
+    0x0203a4a0, 0x0203a4a0, 0x0203a4a0, 0x0203a4a0, 0x0203a4a0, 0x0203a4a0,
     0x0203a4a1, 0x0203a4a1, 0x0203a4a1, 0x0203a4a1, 0x0203a4a1,
     0x0203a4a5, 0x0203a4a5, 0x0203a4a5, 0x0203a4a5, 0x0203a4a5,
     0x0203a5a5, 0x0203a5a5, 0x0203a5a5, 0x0203a5a5, 0x0203a5a5,
-    0x0203ada5, 0x0203ada5, 0x0203ada5, 0x0203ada5, 0x0203ada5,
+    0x0203ada5, 0x0203ada5, 0x0203ada5, 0x0203ada5, 0x0203ada5, 0x0203ada5,
     0x0203ada7, 0x0203ada7, 0x0203ada7, 0x0203ada7, 0x0203ada7,
     0x0203adaf, 0x0203adaf, 0x0203adaf, 0x0203adaf, 0x0203adaf,
     0x0203afaf, 0x0203afaf, 0x0203afaf, 0x0203afaf, 0x0203afaf,
-    0x0203df5f, 0x0203df5f, 0x0203df5f, 0x0203df5f, 0x0203df5f,
+    0x0203df5f, 0x0203df5f, 0x0203df5f, 0x0203df5f, 0x0203df5f, 0x0203df5f,
     0x0203df7f, 0x0203df7f, 0x0203df7f, 0x0203df7f, 0x0203df7f,
     0x0203dfff, 0x0203dfff, 0x0203dfff, 0x0203dfff, 0x0203dfff,
     0x0203ffff, 0x0203ffff, 0x0203ffff, 0x0203ffff, 0x0203ffff,
@@ -118,7 +118,7 @@ static void image_copy(cammy_sram_frame *frame, uint8_t *buf) {
             uint32_t to   = (slot & 0x00030000) >> 16;
             uint8_t  value;
 
-            if (slot & (0x8000 >> (x & 0x03) >> ((y & 0x03) << 2))) {
+            if (slot & (0x8000 >> ((y & 3) << 2) >> (x & 3))) {
                 value = to   ^ 0x03;
             } else {
                 value = from ^ 0x03;