# HG changeset patch
# User Thibaut Girka <thib@sitedethib.com>
# Date 1341864832 -7200
# Node ID b07e2f71f240ac21adae75997fca992cfc4ac4bd
# Parent  cb1460b9b6cf6ce62fb6ebf27d0921d8aca0221f
Empty ECL stack when calling a callback.

diff --git a/pytouhou/vm/eclrunner.py b/pytouhou/vm/eclrunner.py
--- a/pytouhou/vm/eclrunner.py
+++ b/pytouhou/vm/eclrunner.py
@@ -142,7 +142,9 @@ class ECLRunner(object):
         self.stack = []
 
 
-    def switch_to_sub(self, sub):
+    def switch_to_sub(self, sub, preserve_stack=False):
+        if not preserve_stack:
+            self.stack = []
         self.running = True
         self.frame = 0
         self.sub = sub
@@ -407,7 +409,7 @@ class ECLRunner(object):
                            list(self.variables), self.comparison_reg))
         self.variables[0] = param1
         self.variables[4] = param2
-        self.switch_to_sub(sub)
+        self.switch_to_sub(sub, preserve_stack=True)
 
 
     @instruction(36)