diff --git a/src/kernel/lib/string.c b/src/kernel/lib/string.c
new file mode 100644
index 0000000..f9501ae
--- /dev/null
+++ b/src/kernel/lib/string.c
@@ -0,0 +1,2 @@
+// Generic String Library
+#define INDEX(s, c) (int)(c-s) 
diff --git a/src/kernel/lib/vga.c b/src/kernel/lib/vga.c
index e869fe2..9d5d7cd 100644
--- a/src/kernel/lib/vga.c
+++ b/src/kernel/lib/vga.c
@@ -3,10 +3,6 @@
 // VGA base address: 0xb8000
 // Charpos = 0xb8000 + 2(row*80 + col)
 
-// Screen Dimensions
-#define WIDTH 640
-#define HEIGHT 480
-
 // Memory
 #define VIDEO_MEM 	(char*)0xb8000
 #define VIDEO_MEM_MAX	(char*)0xb8fa0