diff --git a/lib/libc/CMakeLists.txt b/lib/libc/CMakeLists.txt
index 1f85c1f..e9e5148 100644
--- a/lib/libc/CMakeLists.txt
+++ b/lib/libc/CMakeLists.txt
@@ -2,6 +2,7 @@
 add_library(c STATIC
   src/malloc.cpp
   src/stdio.cpp
+  src/string.cpp
   )
 
 target_include_directories(c
diff --git a/lib/libc/include/string.h b/lib/libc/include/string.h
new file mode 100644
index 0000000..bb4f5bc
--- /dev/null
+++ b/lib/libc/include/string.h
@@ -0,0 +1,5 @@
+#pragma once
+
+#include "stddef.h"
+
+void* memcpy(void* dest, const void* src, size_t count);
diff --git a/lib/libc/src/string.cpp b/lib/libc/src/string.cpp
new file mode 100644
index 0000000..da0261a
--- /dev/null
+++ b/lib/libc/src/string.cpp
@@ -0,0 +1,10 @@
+#include "string.h"
+
+void* memcpy(void* dest, const void* src, size_t count) {
+  uint8_t* d = (uint8_t*)dest;
+  const uint8_t* s = (uint8_t*)src;
+  for (size_t i = 0; i < count; i++) {
+    d[i] = s[i];
+  }
+  return dest;
+}