From 399256b38403f2e95312250d49fca3cada8956b8 Mon Sep 17 00:00:00 2001
From: obscuren <geffobscura@gmail.com>
Date: Mon, 15 Sep 2014 22:11:05 +0200
Subject: VM execution fixes

Refactoring caused executing issues
---
 ethvm/stack.go | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'ethvm/stack.go')

diff --git a/ethvm/stack.go b/ethvm/stack.go
index 82dd612c2..4ac023fb9 100644
--- a/ethvm/stack.go
+++ b/ethvm/stack.go
@@ -65,13 +65,13 @@ func (st *Stack) Peekn() (*big.Int, *big.Int) {
 }
 
 func (st *Stack) Swapn(n int) (*big.Int, *big.Int) {
-	st.data[n], st.data[0] = st.data[0], st.data[n]
+	st.data[len(st.data)-n], st.data[len(st.data)-1] = st.data[len(st.data)-1], st.data[len(st.data)-n]
 
-	return st.data[n], st.data[0]
+	return st.data[len(st.data)-n], st.data[len(st.data)-1]
 }
 
 func (st *Stack) Dupn(n int) *big.Int {
-	st.Push(st.data[n])
+	st.Push(st.data[len(st.data)-n])
 
 	return st.Peek()
 }
-- 
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