diff --git a/cutil.c b/cutil.c
index fc20da0..8194f4c 100644
--- a/cutil.c
+++ b/cutil.c
@@ -1,9 +1,70 @@
 #include "cutil.h"
 #include <string.h>
 
-void* (*cu_malloc)(size_t) = CUTIL_MALLOC;
-void* (*cu_realloc)(void*, size_t) = CUTIL_REALLOC;
+enum cu_arch_e cutil_arch()
+{
+#if defined(__x86_64__) || defined(_M_X64)
+    return x86_64;
+#elif defined(i386) || defined(__i386__) || defined(__i386) || defined(_M_IX86)
+    return x86_32;
+#elif defined(__ARM_ARCH_2__)
+    return ARM2;
+#elif defined(__ARM_ARCH_3__) || defined(__ARM_ARCH_3M__)
+    return ARM3;
+#elif defined(__ARM_ARCH_4T__) || defined(__TARGET_ARM_4T)
+    return ARM4T;
+#elif defined(__ARM_ARCH_5_) || defined(__ARM_ARCH_5E_)
+    return ARM5;
+#elif defined(__ARM_ARCH_6T2_) || defined(__ARM_ARCH_6T2_)
+    return ARM6T2;
+#elif defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6ZK__)
+    return ARM6;
+#elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7S__)
+    return ARM7;
+#elif defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7S__)
+    return ARM7A;
+#elif defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7S__)
+    return ARM7R;
+#elif defined(__ARM_ARCH_7M__)
+    return ARM7M;
+#elif defined(__ARM_ARCH_7S__)
+    return ARM7S;
+#elif defined(__aarch64__) || defined(_M_ARM64)
+    return ARM64;
+#elif defined(mips) || defined(__mips__) || defined(__mips)
+    return MIPS;
+#elif defined(__sh__)
+    return SUPERH;
+#elif defined(__powerpc) || defined(__powerpc__) || defined(__powerpc64__) || defined(__POWERPC__) || defined(__ppc__) || defined(__PPC__) || defined(_ARCH_PPC)
+    return POWERPC;
+#elif defined(__PPC64__) || defined(__ppc64__) || defined(_ARCH_PPC64)
+    return POWERPC64;
+#elif defined(__sparc__) || defined(__sparc)
+    return SPARC;
+#elif defined(__m68k__)
+    return M68K;
+#else
+    return ARCH_UNKNOWN;
+#endif
+}
+
+void* (*cu_malloc)(size_t);
+void* (*cu_realloc)(void*, size_t);
 void (*cu_free)(void*) = CUTIL_FREE;
-void* (*cu_memset)(void*,int,size_t) = CUTIL_MEMSET;
-void* (*cu_memcpy)(void*,const void*,size_t) = CUTIL_MEMCPY;
-void* (*cu_memmove)(void*,const void*,size_t) = CUTIL_MEMMOVE;
+void* (*cu_memset)(void*,int,size_t);
+void* (*cu_memcpy)(void*,const void*,size_t);
+void* (*cu_memmove)(void*,const void*,size_t);
+
+void cutil_init()
+{
+    cu_malloc = CUTIL_MALLOC;
+    cu_realloc = CUTIL_REALLOC;
+    cu_free = CUTIL_FREE;
+    cu_memset = CUTIL_MEMSET;
+    cu_memcpy = CUTIL_MEMCPY;
+    cu_memmove = CUTIL_MEMMOVE;
+}
+
+void cutil_exit()
+{
+}
diff --git a/cutil.h b/cutil.h
index 1715391..7b1d547 100644
--- a/cutil.h
+++ b/cutil.h
@@ -4,6 +4,32 @@
 #include "cutypes.h"
 #include <stdlib.h>
 
+enum cu_arch_e {
+    ARCH_UNKNOWN = 0,
+    x86_64,
+    x86_32,
+    ARM2,
+    ARM3,
+    ARM4T,
+    ARM5,
+    ARM6T2,
+    ARM6,
+    ARM7,
+    ARM7A,
+    ARM7R,
+    ARM7M,
+    ARM7S,
+    AARCH64,
+    MIPS,
+    SUPERH,
+    POWERPC,
+    POWERPC64,
+    SPARC,
+    M68K,
+};
+
+enum cu_arch_e cutil_arch();
+
 #define CUTIL_MALLOC malloc
 #define CUTIL_REALLOC realloc
 #define CUTIL_FREE free
@@ -18,4 +44,7 @@ extern void* (*cu_memset)(void*,int,size_t);
 extern void* (*cu_memcpy)(void*,const void*,size_t);
 extern void* (*cu_memmove)(void*,const void*,size_t);
 
+void cutil_init();
+void cutil_exit();
+
 #endif
\ No newline at end of file
diff --git a/test.c b/test.c
index 00a1d07..3e92cf2 100644
--- a/test.c
+++ b/test.c
@@ -1,12 +1,14 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <time.h>
+#include "cutil.h"
 #include "list.h"
 #include "array.h"
 #include "bitmap.h"
 
 int main()
 {
+    cutil_init();
     printf("[list]\n");
     list_t list;
     list_init(&list);
@@ -71,5 +73,10 @@ int main()
     printf("bitmap\t%u\t%u\n", bitmap_get(m, 0), bitmap_get(m, 64));
     bitmap_set(m, 5, 0);
     printf("bitmap\t%u\n", bitmap_get(m, 5));
+
+    printf("[cutil]\n");
+    printf("cutil_arch\t%u\n", cutil_arch());
+
+    cutil_exit();
     return 0;
 }
\ No newline at end of file