diff --git a/arm9/asm/MSL_Common_arith.s b/arm9/asm/MSL_Common_arith.s
deleted file mode 100644
index 5d93a4de7..000000000
--- a/arm9/asm/MSL_Common_arith.s
+++ /dev/null
@@ -1,11 +0,0 @@
-	.include "asm/macros.inc"
-	.include "global.inc"
-
-	.text
-
-	arm_func_start abs
-abs: ; 0x020DE3F0
-	cmp r0, #0x0
-	rsblt r0, r0, #0x0
-	bx lr
-	arm_func_end abs
diff --git a/arm9/lib/include/MSL.h b/arm9/lib/include/MSL.h
new file mode 100644
index 000000000..a1709bc4d
--- /dev/null
+++ b/arm9/lib/include/MSL.h
@@ -0,0 +1,8 @@
+#ifndef MSL_H
+#define MSL_H
+
+//include all msl files here
+
+#include "MSL_Common_arith.h"
+
+#endif //MSL_H
diff --git a/arm9/lib/include/MSL_Common_arith.h b/arm9/lib/include/MSL_Common_arith.h
new file mode 100644
index 000000000..3ec6bdbce
--- /dev/null
+++ b/arm9/lib/include/MSL_Common_arith.h
@@ -0,0 +1,8 @@
+#ifndef MSL_COMMON_ARITH_H
+#define MSL_COMMON_ARITH_H
+
+#include "nitro/types.h"
+
+s32 abs(s32 val);
+
+#endif //MSL_COMMON_ARITH_H
diff --git a/arm9/lib/src/MSL_Common_arith.c b/arm9/lib/src/MSL_Common_arith.c
new file mode 100644
index 000000000..d4a2e834d
--- /dev/null
+++ b/arm9/lib/src/MSL_Common_arith.c
@@ -0,0 +1,7 @@
+#include "MSL_Common_arith.h"
+#include "function_target.h"
+
+ARM_FUNC s32 abs(s32 val)
+{
+    return val < 0 ? -val : val;
+}
diff --git a/arm9/src/palette.c b/arm9/src/palette.c
index e4c42cc45..822525941 100644
--- a/arm9/src/palette.c
+++ b/arm9/src/palette.c
@@ -1,12 +1,11 @@
 #include "global.h"
+#include "MSL.h"
 #include "palette.h"
 #include "MI_memory.h"
 #include "gf_gfx_loader.h"
 #include "unk_0200CA44.h"
 #include "unk_020222E8.h"
 
-extern int abs(int);
-
 THUMB_FUNC struct PaletteData *FUN_02002FD0(u32 heap_id)
 {
     struct PaletteData *ptr = AllocFromHeap(heap_id, sizeof(struct PaletteData));
diff --git a/files/graphic/poketch/.gitignore b/files/graphic/poketch/.gitignore
new file mode 100644
index 000000000..a57ebae40
--- /dev/null
+++ b/files/graphic/poketch/.gitignore
@@ -0,0 +1 @@
+narc_0010.NCGR