now breakpoints are possible

debugMenu.c

@@ -29,11 +29,14 @@ void inspect(struct stack s, int fp){
 void list(void){
   //todo
 }
-void breakpoint(void){
-  //todo
+void breakpoint(int *bp){
+    printf("BREAKPOINT: ");
+    char input[20];
+    fgets(input,20,stdin);
+    *bp = atoi(input);
 }
 
-void debugMenu(int fp, struct stack stack, int* debug, int point){
+void debugMenu(int fp, struct stack stack, int* debug, int point, int* bp){
   char input[20];
   while (true) {
     printf("DEBUG(%i): inspect, list, breakpoint, run, step, quit?",point);
@@ -41,7 +44,7 @@ void debugMenu(int fp, struct stack stack, int* debug, int point){
     printf("%s",input);
     if(input[0] == 'i') {inspect(stack,fp);}
     if(input[0] == 'l') list();
-    if(input[0] == 'b') breakpoint();
+    if(input[0] == 'b') breakpoint(bp);
     if(input[0] == 's') break;
     if(input[0] == 'r') {*debug = 0; break;};
     if(input[0] == 'q') exit(0);

njvm.c

@@ -28,6 +28,7 @@ void help(void) {
 }
 
 void execute(struct program program) {
+    int bp = -1;
     int i;
     char charInput;
     StackSlot tempSlot;
@@ -35,7 +36,8 @@ void execute(struct program program) {
     ObjRef tempObj2;
     int tempInt;
     for (i = 0; i < *program.size; ++i) {
-//        if (debug == 1) debugMenu(fp, stack, &debug, i);
+        if (debug == 1 || bp == i) debugMenu(fp, stack, &debug, i, &bp);
+        if(debug == 1) printf("(%i)",i);
         switch (program.program[i] >> 24) {
             case HALT:
                 if (debug == 1) printf("halt\n");