From 58e289d1fcf44964189b27ab0131a900621c42ac Mon Sep 17 00:00:00 2001
From: crc <crc@noemail.net>
Date: Wed, 23 Dec 2020 12:21:35 +0000
Subject: [PATCH] nga-python: raise IndexError on invalid fetch address (#31)

FossilOrigin-Name: 40e85d0ae3d2223e1b465f782f8e4c4b93bc7c1ffad6615f569ebc6a357482e1
---
 vm/nga-python/retro.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vm/nga-python/retro.py b/vm/nga-python/retro.py
index 58af55d..70e3a5a 100644
--- a/vm/nga-python/retro.py
+++ b/vm/nga-python/retro.py
@@ -286,7 +286,7 @@ class Retro:
         elif target == -5:
             self.stack.push(170141183460469231731687303715884105727)
         else:
-            self.stack.push(0)
+            raise IndexError
 
     def i_store(self):
         mi = self.stack.pop()