diff --git a/.vscode/settings.json b/.vscode/settings.json
index 8aae49a..1bc88b6 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,6 +1,7 @@
 {
     "C_Cpp.clang_format_fallbackStyle": "Google",
     "files.associations": {
-        "functional": "c"
+        "functional": "c",
+        "helper.h": "c"
     }
 }
\ No newline at end of file
diff --git a/Implementierung/CMakeLists.txt b/Implementierung/CMakeLists.txt
index 91d978d..e164800 100644
--- a/Implementierung/CMakeLists.txt
+++ b/Implementierung/CMakeLists.txt
@@ -8,6 +8,8 @@ add_executable(md2 "")
 set(SOURCE_FILES
     src/main.c
     src/helper.c
+    src/io.c
+    src/md2.c
 )
 
 target_sources(md2 PRIVATE ${SOURCE_FILES})
diff --git a/Implementierung/lib/helper.h b/Implementierung/lib/helper.h
index 5495952..410940b 100644
--- a/Implementierung/lib/helper.h
+++ b/Implementierung/lib/helper.h
@@ -1,3 +1,6 @@
+#ifndef HELPER_H
+#define HELPER_H
+
 #include <errno.h>
 #include <stdint.h>
 #include <stdlib.h>
@@ -17,4 +20,6 @@ struct configuration {
   int benchmarkingCycles;
 };
 
-enum argumentParseResult parseArguments(int argc, char** argv, struct configuration* c);
\ No newline at end of file
+enum argumentParseResult parseArguments(int argc, char** argv, struct configuration* c);
+
+#endif // HELPER_H
\ No newline at end of file
diff --git a/Implementierung/lib/io.h b/Implementierung/lib/io.h
new file mode 100644
index 0000000..a57a141
--- /dev/null
+++ b/Implementierung/lib/io.h
@@ -0,0 +1,10 @@
+#ifndef IO_H
+#define IO_H
+
+#include <errno.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+
+#endif // IO_H
\ No newline at end of file
diff --git a/Implementierung/lib/md2.h b/Implementierung/lib/md2.h
new file mode 100644
index 0000000..0a972e7
--- /dev/null
+++ b/Implementierung/lib/md2.h
@@ -0,0 +1,6 @@
+#ifndef MD2_H
+#define MD2_H
+
+#include <stdint.h>
+
+#endif // MD2_H
\ No newline at end of file
diff --git a/Implementierung/src/io.c b/Implementierung/src/io.c
new file mode 100644
index 0000000..1d0dcfe
--- /dev/null
+++ b/Implementierung/src/io.c
@@ -0,0 +1,41 @@
+#include "io.h"
+
+static uint8_t* read_file(const char* path, size_t* size) {
+    // Read the contents of the file specified by path into a heap-allocated
+    // buffer and return a pointer to that buffer.
+    FILE* f = fopen(path, "r");
+    if(f == NULL) {
+        printf("Fopen error: %d\n", errno);
+        fclose(f);
+        return NULL;
+    }
+
+    struct stat statOfFile;
+    int status = fstat(fileno(f), &statOfFile);
+    if(status == -1) {
+        printf("Fstat error: %d\n", errno);
+        fclose(f);
+        return NULL;
+    };
+
+    if((statOfFile.st_mode & S_IFMT) != S_IFREG){
+        printf("File is not a regular file!\n");
+        fclose(f);
+        return NULL;
+    }
+
+    uint8_t* data = malloc(statOfFile.st_size);
+
+    size_t bytesRead = fread(data, statOfFile.st_blksize, statOfFile.st_blocks, f);
+    // Or: size_t bytesRead = fread(data, sizeof(char), statOfFile.st_size, f);
+    if(bytesRead != 0 && !feof(f)) {
+        printf("Error reading file!\n");
+        fclose(f);
+        return NULL;
+    }
+
+    fclose(f);
+
+    (*size) = bytesRead;
+    return data;
+}
\ No newline at end of file
diff --git a/Implementierung/src/main.c b/Implementierung/src/main.c
index b20a89a..5aae3df 100644
--- a/Implementierung/src/main.c
+++ b/Implementierung/src/main.c
@@ -1,70 +1,6 @@
-#include <fcntl.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <stdbool.h>
-#include <stddef.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <time.h>
-#include <unistd.h>
-#include <xmmintrin.h>
-#include <errno.h>
-#include <immintrin.h>
-#include <stdint.h>
-#include <getopt.h>
-
 #include "helper.h"
-
-// The file "testfile" should lead to this hash: fc982e558db259f298b43cd4c1241c66
-
-void md2_checksum(size_t len, uint8_t* buf) {
-
-}
-
-void md2_hash(size_t len, const uint8_t buf[len], uint8_t out[16]) {
-
-}
-
-static uint8_t* read_file(const char* path, size_t* size) {
-    // Read the contents of the file specified by path into a heap-allocated
-    // buffer and return a pointer to that buffer.
-    FILE* f = fopen(path, "r");
-    if(f == NULL) {
-        printf("Fopen error: %d\n", errno);
-        fclose(f);
-        return NULL;
-    }
-
-    struct stat statOfFile;
-    int status = fstat(fileno(f), &statOfFile);
-    if(status == -1) {
-        printf("Fstat error: %d\n", errno);
-        fclose(f);
-        return NULL;
-    };
-
-    if((statOfFile.st_mode & S_IFMT) != S_IFREG){
-        printf("File is not a regular file!\n");
-        fclose(f);
-        return NULL;
-    }
-
-    uint8_t* data = malloc(statOfFile.st_size);
-
-    size_t bytesRead = fread(data, statOfFile.st_blksize, statOfFile.st_blocks, f);
-    // Or: size_t bytesRead = fread(data, sizeof(char), statOfFile.st_size, f);
-    if(bytesRead != 0 && !feof(f)) {
-        printf("Error reading file!\n");
-        fclose(f);
-        return NULL;
-    }
-
-    fclose(f);
-
-    (*size) = bytesRead;
-    return data;
-}
+#include "io.h"
+#include "md2.h"
 
 int main(int argc, char** argv) {
      
diff --git a/Implementierung/src/md2.c b/Implementierung/src/md2.c
new file mode 100644
index 0000000..25c73cc
--- /dev/null
+++ b/Implementierung/src/md2.c
@@ -0,0 +1,11 @@
+#include "io.h"
+
+// The file "testfile" should lead to this hash: fc982e558db259f298b43cd4c1241c66
+
+void md2_checksum(size_t len, uint8_t* buf) {
+
+}
+
+void md2_hash(size_t len, const uint8_t buf[len], uint8_t out[16]) {
+
+}
\ No newline at end of file
diff --git a/README.md b/README.md
index ee36483..f69843e 100644
--- a/README.md
+++ b/README.md
@@ -7,3 +7,8 @@ Beachten Sie, dass die äußere Form und die Einhaltung der Formalitäten wichti
 - `Implementierung/`: Ihre Implementierung
 - `Implementierung/Makefile`: Makefile für Ihre Implementierung, welches durch einen Aufruf von `make` Ihre Implementierung kompiliert
 - `Vortrag/Vortrag.pdf`: Folien für Ihre Abschlusspräsentation
+
+# Kompilieren
+
+- CMake ausführen: `cmake .`
+- Make ausführen: `make`
\ No newline at end of file