+# User process code.
+userprog_SRC = userprog/process.c # Process loading.
+userprog_SRC += userprog/pagedir.c # Page directories.
+userprog_SRC += userprog/exception.c # User exception handler.
+userprog_SRC += userprog/syscall.c # System call handler.
+userprog_SRC += userprog/gdt.c # GDT initialization.
+userprog_SRC += userprog/tss.c # TSS management.
+
+# No virtual memory code yet.
+#vm_SRC = vm/filename.c # Some file.
+