From 565f959ee22b56647eaed66c41d0eec7a9b2f88f Mon Sep 17 00:00:00 2001
From: Chris Pressey <cpressey@catseye.tc>
Date: Tue, 22 Oct 2019 12:35:29 +0100
Subject: [PATCH] Our CINV interrupt service routine should be preserved.

---
 eg/c64/demo-game/demo-game.60p | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/eg/c64/demo-game/demo-game.60p b/eg/c64/demo-game/demo-game.60p
index 31d9f97..b97a479 100644
--- a/eg/c64/demo-game/demo-game.60p
+++ b/eg/c64/demo-game/demo-game.60p
@@ -425,7 +425,7 @@ define game_state_game_over game_state_routine
 // * Main Game Loop Driver *
 // *************************
 
-define our_cinv game_state_routine
+define our_cinv preserved game_state_routine
 {
     goto dispatch_game_state
 }