Added non-debug ebreak intercept

src/main.c

@@ -33,7 +33,27 @@ int main(int argc, char** argv)
 	pthread_create(&cpu0_thread, 0, (void*) cpu_loop, cpu0);
 
 	// Wait for the simulation to end
+	if(gdbstub)
+	{
 		pthread_join(cpu0_thread, 0);
+	}
+	else
+	{
+		while(1)
+		{
+			pthread_mutex_lock(&cpu0_mutex);
+			pthread_cond_wait(&cpu0->sim_condition, &cpu0_mutex);
+			if(!cpu0->sim_ticks_left && cpu0->sim_ticks_done > 0)
+			{
+				// Simulation ended
+                break;
+			}
+			pthread_mutex_unlock(&cpu0_mutex);
+		}
+
+        fprintf(stderr, "Simulation ended in a non-debug environment\n");
+        return cpu0->regs.a0;
+	}
 
 	return 0;
 }