From da7e7dae2b690308fb7ff3aba34145233c740bce Mon Sep 17 00:00:00 2001
From: Julien Dessaux
Date: Fri, 24 Sep 2021 01:26:49 +0200
Subject: Made the interpreter pass most of the mycology test suite

---
 pkg/pointer/stack.go | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'pkg/pointer/stack.go')

diff --git a/pkg/pointer/stack.go b/pkg/pointer/stack.go
index 1832dbb..ba51c7c 100644
--- a/pkg/pointer/stack.go
+++ b/pkg/pointer/stack.go
@@ -23,6 +23,9 @@ func (s *Stack) Clear() {
 func (s *Stack) Duplicate() {
 	if s.height > 0 {
 		s.Push(s.data[s.height-1])
+	} else {
+		s.Push(0)
+		s.Push(0)
 	}
 }
 
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