4 files changed, 27 insertions, 0 deletions
diff --git a/arm9/lib/include/FS_archive.h b/arm9/lib/include/FS_archive.h
index 3bbbbff7..d30081d7 100644
--- a/arm9/lib/include/FS_archive.h
+++ b/arm9/lib/include/FS_archive.h
@@ -105,6 +105,19 @@ typedef struct
 }
 FSFileLink;
 
+typedef struct
+{
+    u32 start;
+    u16 index;
+    u16 parent;
+} FSArchiveFNT;
+
+typedef struct
+{
+    u32 top;
+    u32 bottom;
+} FSArchiveFAT;
+
 typedef struct FSArchive
 {
     union
diff --git a/arm9/lib/include/FS_file.h b/arm9/lib/include/FS_file.h
index fdf6c4e2..55825c61 100644
--- a/arm9/lib/include/FS_file.h
+++ b/arm9/lib/include/FS_file.h
@@ -13,6 +13,8 @@
 #define	FS_FILE_STATUS_IS_DIR		0x00000020
 #define FS_FILE_STATUS_OPERATING    0x00000040
 
+#define FS_FILE_NAME_MAX 127
+
 typedef enum FSSeekFileMode
 {
     FS_SEEK_SET = 0,
@@ -210,4 +212,9 @@ static inline BOOL FS_IsSucceeded(volatile const FSFile * p_file)
     return (p_file->error == FS_RESULT_SUCCESS) ? TRUE : FALSE;
 }
 
+static inline BOOL FS_IsDir(volatile const FSFile * p_file)
+{
+    return (p_file->stat & FS_FILE_STATUS_IS_DIR) ? TRUE : FALSE;
+}
+
 #endif //NITRO_FS_FILE_H_
diff --git a/arm9/lib/include/FSi_util.h b/arm9/lib/include/FSi_util.h
index 1f6faf6f..6e96681e 100644
--- a/arm9/lib/include/FSi_util.h
+++ b/arm9/lib/include/FSi_util.h
@@ -5,6 +5,8 @@
 
 #define ALIGN_BYTE(n, a) (((u32)(n) + ALIGN_MASK(a)) & ~ALIGN_MASK(a))
 
+#define BIT_MASK(a) ((u32)((1 << (a)) - 1))
+
 static inline BOOL FSi_IsSlash(u32 c)
 {
     return (c == '/') || (c == '\\');
diff --git a/arm9/lib/include/MI_byteAccess.h b/arm9/lib/include/MI_byteAccess.h
index 10dae4c9..cad4d518 100644
--- a/arm9/lib/include/MI_byteAccess.h
+++ b/arm9/lib/include/MI_byteAccess.h
@@ -6,4 +6,9 @@ static inline u8 MI_ReadByte(const void *address)
     return *(u8 *)address;
 }
 
+static inline void MI_WriteByte(void *address, u8 value)
+{
+    *(u8 *)address = value;
+}
+
 #endif //NITRO_MI_BYTEACCESS_H_