diff --git a/src/lib/libc/string/memcmp.c b/src/lib/libc/string/memcmp.c
index 82edb4a..266e2c2 100755
--- a/src/lib/libc/string/memcmp.c
+++ b/src/lib/libc/string/memcmp.c
@@ -3,8 +3,8 @@
 
 int memcmp(const void * dst, const void * src, size_t length)
 {
-    size_t x = length / 4;
-    size_t y = length % 4;
+    size_t x = length >> 2;
+    size_t y = length & 0xf;
     size_t i;
     
     for (i = 0; i < x; i++)
diff --git a/src/lib/libc/string/memcpy.c b/src/lib/libc/string/memcpy.c
index 38849ae..e57ba1b 100755
--- a/src/lib/libc/string/memcpy.c
+++ b/src/lib/libc/string/memcpy.c
@@ -3,8 +3,8 @@
 
 void * memcpy(void * dst, const void * src, size_t length)
 {
-    size_t x = length / 4;
-    size_t y = length % 4;
+    size_t x = length >> 2;
+    size_t y = length & 0xf;
     size_t i;
 
     for (i = 0; i < x; i++)
diff --git a/src/lib/libc/string/memset.c b/src/lib/libc/string/memset.c
index 270497e..1acfbd6 100755
--- a/src/lib/libc/string/memset.c
+++ b/src/lib/libc/string/memset.c
@@ -3,8 +3,8 @@
 
 void * memset(void * dst, int c, size_t length)
 {
-    size_t x = length / 4;
-    size_t y = length % 4;
+    size_t x = length >> 2;
+    size_t y = length & 0xf;
     size_t i;
     
     unsigned int newC = (c << 24) | (c << 16) | (c << 8) | (c);