From b840730b4fb4ef87395a3f3c4fac17218e72d707 Mon Sep 17 00:00:00 2001
From: Christoph Jentzsch <jentzsch.software@gmail.com>
Date: Fri, 14 Nov 2014 07:55:10 +0100
Subject: [PATCH] explicit type cast

---
 libevm/VM.h | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/libevm/VM.h b/libevm/VM.h
index 5c153a6ea..52149a9a1 100644
--- a/libevm/VM.h
+++ b/libevm/VM.h
@@ -206,9 +206,7 @@ template <class Ext> dev::bytesConstRef dev::eth::VM::go(Ext& _ext, OnOpFunc con
 		{
 			unsigned n = (unsigned)inst - (unsigned)Instruction::LOG0;
 			require(n + 2);
-			runGas = m_stack[m_stack.size() - 2];
-			runGas *= c_logDataGas;
-			runGas += c_logGas + c_logTopicGas * n;
+			runGas = c_logGas + c_logTopicGas * n + (bigint)c_logDataGas * m_stack[m_stack.size() - 2];
 			newTempSize = memNeed(m_stack[m_stack.size() - 1], m_stack[m_stack.size() - 2]);
 			break;
 		}
@@ -216,8 +214,7 @@ template <class Ext> dev::bytesConstRef dev::eth::VM::go(Ext& _ext, OnOpFunc con
 		case Instruction::CALL:
 		case Instruction::CALLCODE:
 			require(7);
-			runGas = m_stack[m_stack.size() - 1];
-			runGas += c_callGas;
+			runGas = (bigint)c_callGas + m_stack[m_stack.size() - 1];
 			newTempSize = std::max(memNeed(m_stack[m_stack.size() - 6], m_stack[m_stack.size() - 7]), memNeed(m_stack[m_stack.size() - 4], m_stack[m_stack.size() - 5]));
 			break;