[Modified] reorganize the project

lasim/main.cc

@@ -0,0 +1,11 @@
+#include <sysbus.hh>
+
+#include <iostream>
+
+int main() {
+    fetch();
+#ifdef DEBUG_MODE
+    std::cout << "Hello" << std::endl;
+#endif
+    return 0;
+}