diff --git a/njvm.c b/njvm.c
index 6c7995c..d501000 100644
--- a/njvm.c
+++ b/njvm.c
@@ -1,6 +1,5 @@
 #include <stdio.h>
 #include <string.h>
-#include <stdlib.h>
 #include "instruktion.c"
 #include "code.c"
 #include "stack.c"
@@ -11,16 +10,13 @@
 
 #define DEBUG
 
-
 // Stack
 struct stack stack;
 #define SIZE 1000
 
-// ProgrammSpeicher
+// Program
 struct program program;
 
-unsigned int* programmSpeicher;
-
 void version(void) {
     printf("Ninja Virtual Machine version %i (compiled %s, %s)\n", 0, __DATE__, __TIME__);
 }
@@ -29,19 +25,18 @@ void help(void) {
     printf("usage: ./njvm [option] [option] ...\n\t--version\tshow version and exit\n\t--help\t\tshow this help and exit\n");
 }
 
-void execute(void) {
-    int i = 0;
+void execute(struct program program) {
+    int i;
     int intInput;
-    int temp;
+    unsigned int temp;
     char charInput;
-    while (1) {
-
-        switch (programmSpeicher[i] >> 24) {
+    for (i = 0; i < *program.size; ++i) {
+        switch (program.program[i] >> 24) {
             case HALT:
                   goto end;
                 break;
             case PUSHC:
-                  push(stack,IMMEDIATE(programmSpeicher[i]));
+                  push(stack,IMMEDIATE(program.program[i]));
                 break;
             case ADD:
                   push(stack,pop(stack)+pop(stack));
@@ -76,10 +71,9 @@ void execute(void) {
                   printf("%c",pop(stack));
                 break;
         }
-        i++;
     }
-end:
-  return;
+    end:
+    return;
 }
 #ifdef DEBUG
 
@@ -101,8 +95,8 @@ int main(int argc, char *argv[]) {
     stack.stack = s;
      
     // Initialize ProgrammSpeicher
-    int psize = 1;
-    unsigned int p[1];
+    int psize = 1000;
+    unsigned int p[1000];
     program.size = &psize;
     program.program = p;
 
@@ -132,7 +126,7 @@ int main(int argc, char *argv[]) {
 //    Started
         printf("Ninja Virtual Machine started\n");
         printProgram(program);
-        execute();
+        execute(program);
 //    Stopped
         printf("Ninja Virtual Machine stopped\n");
         return 0;
diff --git a/program.c b/program.c
index 34b5c9f..0eddcff 100644
--- a/program.c
+++ b/program.c
@@ -3,65 +3,67 @@
  */
 #ifndef PROGRAM
 #define PROGRAM
+
 #include <string.h>
 #include "instruktion.c"
 #include <stdio.h>
 
 struct program {
-    int* size;
-    unsigned int* program; 
+    int *size;
+    unsigned int *program;
 };
 
-void copyToProgram(unsigned int codeToCopy[], int size, struct program program){
-  program.program = codeToCopy;
-  *program.size = size;
-} 
-
-void printProgram(struct program program){
-  printf("%i\n",*program.size);
-  char c[10];
-  for (int i = 0; i > *program.size; i++) {
-    switch (program.program[i] >> 24) {
-      case PUSHC:
-        strcpy(c,"pushc");
-      break;
-      case ADD:
-        strcpy(c,"add");
-      break;
-      case SUB:
-        strcpy(c,"sub");
-      break;
-      case MUL:
-        strcpy(c,"mul");
-      break;
-      case DIV:
-        strcpy(c,"div");
-      break;
-      case MOD:
-        strcpy(c,"mod");
-      break;
-      case RDINT:
-        strcpy(c,"rdint");
-      break;
-      case WRINT:
-        strcpy(c,"wrint");
-      break;
-      case RDCHR:
-        strcpy(c,"rdchr");
-      break;
-      case WRCHR:
-        strcpy(c,"wrchr");
-      break;
-      case HALT:
-        strcpy(c,"halt");
-      break;
-      default: 
-        strcpy(c,"ERROR");
-      break;
-    
+void copyToProgram(const unsigned int codeToCopy[], int size, struct program program) {
+    for (int i = 0; i < size; ++i) {
+        program.program[i] = codeToCopy[i];
     }
-    IMMEDIATE(program.program[i])? printf("%03i:\t%s\t%i\n",i,c,IMMEDIATE(program.program[i])) : printf("%03i:\t%s\n",i,c);
-    printf("afslaf");
-  }
+    *program.size = size;
 }
+
+void printProgram(struct program program) {
+    char c[10];
+    for (int i = 0; i < *program.size; i++) {
+        switch (program.program[i] >> 24) {
+            case PUSHC:
+                strcpy(c, "pushc");
+                break;
+            case ADD:
+                strcpy(c, "add");
+                break;
+            case SUB:
+                strcpy(c, "sub");
+                break;
+            case MUL:
+                strcpy(c, "mul");
+                break;
+            case DIV:
+                strcpy(c, "div");
+                break;
+            case MOD:
+                strcpy(c, "mod");
+                break;
+            case RDINT:
+                strcpy(c, "rdint");
+                break;
+            case WRINT:
+                strcpy(c, "wrint");
+                break;
+            case RDCHR:
+                strcpy(c, "rdchr");
+                break;
+            case WRCHR:
+                strcpy(c, "wrchr");
+                break;
+            case HALT:
+                strcpy(c, "halt");
+                break;
+            default:
+                strcpy(c, "ERROR");
+                break;
+        }
+        IMMEDIATE(program.program[i]) ? printf("%03i:\t%s\t%i\n", i, c, IMMEDIATE(program.program[i])) : printf(
+                "%03i:\t%s\n", i, c);
+    }
+}
+
 #endif /* ifndef PROGRAMM */