From f0cc349333d3790e10ef3c501d5beffd007e9338 Mon Sep 17 00:00:00 2001
From: Nick Savers <nicksavers@gmail.com>
Date: Tue, 16 Sep 2014 01:50:01 +0200
Subject: [PATCH] Add memsize calculation for EXTCODECOPY

---
 libevm/VM.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/libevm/VM.h b/libevm/VM.h
index e7d218ec6..a07e225e6 100644
--- a/libevm/VM.h
+++ b/libevm/VM.h
@@ -157,7 +157,11 @@ template <class Ext> dev::bytesConstRef dev::eth::VM::go(Ext& _ext, OnOpFunc con
 			require(3);
 			newTempSize = memNeed(m_stack.back(), m_stack[m_stack.size() - 3]);
 			break;
-
+		case Instruction::EXTCODECOPY:
+			require(4);
+			newTempSize = memNeed(m_stack[m_stack.size() - 2], m_stack[m_stack.size() - 4]);
+			break;
+			
 		case Instruction::BALANCE:
 			runGas = c_balanceGas;
 			break;