Fix a couple things

src/Instruction/execute.c

@@ -137,13 +137,27 @@ int64_t _GroundInstructionExecute(GroundInstruction* instruction, GroundValue* h
         Ground.Log.Warning("EXISTS is deprecated");
         return -1;
     }
-    SETLIST: {}
-    SETLISTAT: {}
-    GETLISTAT: {}
-    GETLISTSIZE: {}
-    LISTAPPEND: {}
-    GETSTRSIZE: {}
-    GETSTRCHARAT: {}
+    SETLIST: {
+        return -1;
+    }
+    SETLISTAT: {
+        return -1;
+    }
+    GETLISTAT: {
+        return -1;
+    }
+    GETLISTSIZE: {
+        return -1;
+    }
+    LISTAPPEND: {
+        return -1;
+    }
+    GETSTRSIZE: {
+        return -1;
+    }
+    GETSTRCHARAT: {
+        return -1;
+    }
     ADD: {
         GroundValue* final = &heap[instruction->args.at[2]._offset];
         GroundValue* left = &instruction->args.at[0].as.value;
@@ -512,37 +526,99 @@ int64_t _GroundInstructionExecute(GroundInstruction* instruction, GroundValue* h
         heap[instruction->args.at[1]._offset] = Ground.New.Value.Bool(!instruction->args.at[0].as.value.as.Bool);
         return -1;
     }
-    GREATER: {}
-    LESSER: {}
-    AND: {}
-    OR: {}
-    XOR: {}
-    NEG: {}
-    SHIFT: {}
-    STOI: {}
-    STOD: {}
-    ITOC: {}
-    CTOI: {}
-    TOSTRING: {}
-    FUN: {}
-    RETURN: {}
-    ENDFUN: {}
-    CALL: {}
-    CALLMETHOD: {}
-    STRUCT: {}
-    ENDSTRUCT: {}
-    INIT: {}
-    GETFIELD: {}
-    SETFIELD: {}
-    USE: {}
-    EXTERN: {}
-    CREATELABEL: {}
-    PAUSE: {}
-    DROP: {}
-    LICENSE: {}
-    ERRORCMD: {}
-    THROW: {}
-    CATCH: {}
+    GREATER: {
+        return -1;
+    }
+    LESSER: {
+        return -1;
+    }
+    AND: {
+        return -1;
+    }
+    OR: {
+        return -1;
+    }
+    XOR: {
+        return -1;
+    }
+    NEG: {
+        return -1;
+    }
+    SHIFT: {
+        return -1;
+    }
+    STOI: {
+        return -1;
+    }
+    STOD: {
+        return -1;
+    }
+    ITOC: {
+        return -1;
+    }
+    CTOI: {
+        return -1;
+    }
+    TOSTRING: {
+        return -1;
+    }
+    FUN: {
+        return -1;
+    }
+    RETURN: {
+        return -1;
+    }
+    ENDFUN: {
+        return -1;
+    }
+    CALL: {
+        return -1;
+    }
+    CALLMETHOD: {
+        return -1;
+    }
+    STRUCT: {
+        return -1;
+    }
+    ENDSTRUCT: {
+        return -1;
+    }
+    INIT: {
+        return -1;
+    }
+    GETFIELD: {
+        return -1;
+    }
+    SETFIELD: {
+        return -1;
+    }
+    USE: {
+        return -1;
+    }
+    EXTERN: {
+        return -1;
+    }
+    CREATELABEL: {
+        return -1;
+    }
+    PAUSE: {
+        return -1;
+    }
+    DROP: {
+        return -1;
+    }
+    LICENSE: {
+        return -1;
+    }
+    ERRORCMD: {
+        return -1;
+    }
+    THROW: {
+        return -1;
+    }
+    CATCH: {
+        return -1;
+    }
 
     Ground.Log.Error("operation fell through in Ground.Instruction.execute()");
     Ground.Flags.error = true;