started working on autostart software support

c64/kernal/f5ed.save.s

@@ -0,0 +1,13 @@
+
+;;
+;; Official Kernal routine, described in:
+;;
+;; - [RG64] C64 Programmer's Reference Guide   - page 293/294
+;; - [CM64] Compute's Mapping the Commodore 64 - page 231/232
+;; - IEC reference at http://www.zimmers.net/anonftp/pub/cbm/programming/serial-bus.pdf
+;;
+;; CPU registers that has to be preserved (see [RG64]): none
+;;
+
+save:
+	rts