diff --git a/libethereum/Instruction.cpp b/libethereum/Instruction.cpp
index 660747cfe..b37303738 100644
--- a/libethereum/Instruction.cpp
+++ b/libethereum/Instruction.cpp
@@ -26,6 +26,116 @@
 using namespace std;
 using namespace eth;
 
+const std::map<Instruction, InstructionInfo> eth::c_instructionInfo =
+{
+	{ Instruction::STOP, { "STOP", 0, 0, 0 } },
+	{ Instruction::ADD, { "ADD", 0, 2, 1 } },
+	{ Instruction::SUB, { "SUB", 0, 2, 1 } },
+	{ Instruction::MUL, { "MUL", 0, 2, 1 } },
+	{ Instruction::DIV, { "DIV", 0, 2, 1 } },
+	{ Instruction::SDIV, { "SDIV", 0, 2, 1 } },
+	{ Instruction::MOD, { "MOD", 0, 2, 1 } },
+	{ Instruction::SMOD, { "SMOD", 0, 2, 1 } },
+	{ Instruction::EXP, { "EXP", 0, 2, 1 } },
+	{ Instruction::NEG, { "NEG", 0, 1, 1 } },
+	{ Instruction::LT, { "LT", 0, 2, 1 } },
+	{ Instruction::LE, { "LE", 0, 2, 1 } },
+	{ Instruction::GT, { "GT", 0, 2, 1 } },
+	{ Instruction::GE, { "GE", 0, 2, 1 } },
+	{ Instruction::EQ, { "EQ", 0, 2, 1 } },
+	{ Instruction::NOT, { "NOT", 0, 1, 1 } },
+	{ Instruction::MYADDRESS, { "MYADDRESS", 0, 0, 1 } },
+	{ Instruction::TXSENDER, { "TXSENDER", 0, 0, 1 } },
+	{ Instruction::TXVALUE, { "TXVALUE", 0, 0, 1 } },
+	{ Instruction::TXDATAN, { "TXDATAN", 0, 0, 1 } },
+	{ Instruction::TXDATA, { "TXDATA", 0, 1, 1 } },
+	{ Instruction::BLK_PREVHASH, { "BLK_PREVHASH", 0, 0, 1 } },
+	{ Instruction::BLK_COINBASE, { "BLK_COINBASE", 0, 0, 1 } },
+	{ Instruction::BLK_TIMESTAMP, { "BLK_TIMESTAMP", 0, 0, 1 } },
+	{ Instruction::BLK_NUMBER, { "BLK_NUMBER", 0, 0, 1 } },
+	{ Instruction::BLK_DIFFICULTY, { "BLK_DIFFICULTY", 0, 0, 1 } },
+	{ Instruction::BLK_NONCE, { "BLK_NONCE", 0, 0, 1 } },
+	{ Instruction::BASEFEE, { "BASEFEE", 0, 0, 1 } },
+	{ Instruction::SHA256, { "SHA256", 0, -1, 1 } },
+	{ Instruction::RIPEMD160, { "RIPEMD160", 0, -1, 1 } },
+	{ Instruction::ECMUL, { "ECMUL", 0, 3, 1 } },
+	{ Instruction::ECADD, { "ECADD", 0, 4, 1 } },
+	{ Instruction::ECSIGN, { "ECSIGN", 0, 2, 1 } },
+	{ Instruction::ECRECOVER, { "ECRECOVER", 0, 4, 1 } },
+	{ Instruction::ECVALID, { "ECVALID", 0, 2, 1 } },
+	{ Instruction::SHA3, { "SHA3", 0, -1, 1 } },
+	{ Instruction::PUSH, { "PUSH", 1, 0, 1 } },
+	{ Instruction::POP, { "POP", 0, 1, 0 } },
+	{ Instruction::DUP, { "DUP", 0, 1, 2 } },
+	{ Instruction::SWAP, { "SWAP", 0, 2, 2 } },
+	{ Instruction::MLOAD, { "MLOAD", 0, 1, 1 } },
+	{ Instruction::MSTORE, { "MSTORE", 0, 2, 0 } },
+	{ Instruction::SLOAD, { "SLOAD", 0, 1, 1 } },
+	{ Instruction::SSTORE, { "SSTORE", 0, 2, 0 } },
+	{ Instruction::JMP, { "JMP", 0, 1, 0 } },
+	{ Instruction::JMPI, { "JMPI", 0, 2, 0 } },
+	{ Instruction::IND, { "IND", 0, 0, 1 } },
+	{ Instruction::EXTRO, { "EXTRO", 0, 2, 1 } },
+	{ Instruction::BALANCE, { "BALANCE", 0, 1, 1 } },
+	{ Instruction::MKTX, { "MKTX", 0, -3, 0 } },
+	{ Instruction::SUICIDE, { "SUICIDE", 0, 1, 0} }
+};
+
+const std::map<std::string, Instruction> eth::c_instructions = 
+{
+	{ "STOP", Instruction::STOP },
+	{ "ADD", Instruction::ADD },
+	{ "SUB", Instruction::SUB },
+	{ "MUL", Instruction::MUL },
+	{ "DIV", Instruction::DIV },
+	{ "SDIV", Instruction::SDIV },
+	{ "MOD", Instruction::MOD },
+	{ "SMOD", Instruction::SMOD },
+	{ "EXP", Instruction::EXP },
+	{ "NEG", Instruction::NEG },
+	{ "LT", Instruction::LT },
+	{ "LE", Instruction::LE },
+	{ "GT", Instruction::GT },
+	{ "GE", Instruction::GE },
+	{ "EQ", Instruction::EQ },
+	{ "NOT", Instruction::NOT },
+	{ "MYADDRESS", Instruction::MYADDRESS },
+	{ "TXSENDER", Instruction::TXSENDER },
+	{ "TXVALUE", Instruction::TXVALUE },
+	{ "TXDATAN", Instruction::TXDATAN },
+	{ "TXDATA", Instruction::TXDATA },
+	{ "BLK_PREVHASH", Instruction::BLK_PREVHASH },
+	{ "BLK_COINBASE", Instruction::BLK_COINBASE },
+	{ "BLK_TIMESTAMP", Instruction::BLK_TIMESTAMP },
+	{ "BLK_NUMBER", Instruction::BLK_NUMBER },
+	{ "BLK_DIFFICULTY", Instruction::BLK_DIFFICULTY },
+	{ "BLK_NONCE", Instruction::BLK_NONCE },
+	{ "BASEFEE", Instruction::BASEFEE },
+	{ "SHA256", Instruction::SHA256 },
+	{ "RIPEMD160", Instruction::RIPEMD160 },
+	{ "ECMUL", Instruction::ECMUL },
+	{ "ECADD", Instruction::ECADD },
+	{ "ECSIGN", Instruction::ECSIGN },
+	{ "ECRECOVER", Instruction::ECRECOVER },
+	{ "ECVALID", Instruction::ECVALID },
+	{ "SHA3", Instruction::SHA3 },
+	{ "PUSH", Instruction::PUSH },
+	{ "POP", Instruction::POP },
+	{ "DUP", Instruction::DUP },
+	{ "SWAP", Instruction::SWAP },
+	{ "MLOAD", Instruction::MLOAD },
+	{ "MSTORE", Instruction::MSTORE },
+	{ "SLOAD", Instruction::SLOAD },
+	{ "SSTORE", Instruction::SSTORE },
+	{ "JMP", Instruction::JMP },
+	{ "JMPI", Instruction::JMPI },
+	{ "IND", Instruction::IND },
+	{ "EXTRO", Instruction::EXTRO },
+	{ "BALANCE", Instruction::BALANCE },
+	{ "MKTX", Instruction::MKTX },
+	{ "SUICIDE", Instruction::SUICIDE }
+};
+
 static string readQuoted(char const*& o_d, char const* _e)
 {
 	string ret;
diff --git a/libethereum/Instruction.h b/libethereum/Instruction.h
index 1c17e61a6..268795266 100644
--- a/libethereum/Instruction.h
+++ b/libethereum/Instruction.h
@@ -86,121 +86,14 @@ enum class Instruction: uint8_t
 
 struct InstructionInfo
 {
-	std::string name;
+	char const* name;
 	int additional;
 	int args;
 	int ret;
 };
 
-static const std::map<Instruction, InstructionInfo> c_instructionInfo =
-{
-	{ Instruction::STOP, { "STOP", 0, 0, 0 } },
-	{ Instruction::ADD, { "ADD", 0, 2, 1 } },
-	{ Instruction::SUB, { "SUB", 0, 2, 1 } },
-	{ Instruction::MUL, { "MUL", 0, 2, 1 } },
-	{ Instruction::DIV, { "DIV", 0, 2, 1 } },
-	{ Instruction::SDIV, { "SDIV", 0, 2, 1 } },
-	{ Instruction::MOD, { "MOD", 0, 2, 1 } },
-	{ Instruction::SMOD, { "SMOD", 0, 2, 1 } },
-	{ Instruction::EXP, { "EXP", 0, 2, 1 } },
-	{ Instruction::NEG, { "NEG", 0, 1, 1 } },
-	{ Instruction::LT, { "LT", 0, 2, 1 } },
-	{ Instruction::LE, { "LE", 0, 2, 1 } },
-	{ Instruction::GT, { "GT", 0, 2, 1 } },
-	{ Instruction::GE, { "GE", 0, 2, 1 } },
-	{ Instruction::EQ, { "EQ", 0, 2, 1 } },
-	{ Instruction::NOT, { "NOT", 0, 1, 1 } },
-	{ Instruction::MYADDRESS, { "MYADDRESS", 0, 0, 1 } },
-	{ Instruction::TXSENDER, { "TXSENDER", 0, 0, 1 } },
-	{ Instruction::TXVALUE, { "TXVALUE", 0, 0, 1 } },
-	{ Instruction::TXDATAN, { "TXDATAN", 0, 0, 1 } },
-	{ Instruction::TXDATA, { "TXDATA", 0, 1, 1 } },
-	{ Instruction::BLK_PREVHASH, { "BLK_PREVHASH", 0, 0, 1 } },
-	{ Instruction::BLK_COINBASE, { "BLK_COINBASE", 0, 0, 1 } },
-	{ Instruction::BLK_TIMESTAMP, { "BLK_TIMESTAMP", 0, 0, 1 } },
-	{ Instruction::BLK_NUMBER, { "BLK_NUMBER", 0, 0, 1 } },
-	{ Instruction::BLK_DIFFICULTY, { "BLK_DIFFICULTY", 0, 0, 1 } },
-	{ Instruction::BLK_NONCE, { "BLK_NONCE", 0, 0, 1 } },
-	{ Instruction::BASEFEE, { "BASEFEE", 0, 0, 1 } },
-	{ Instruction::SHA256, { "SHA256", 0, -1, 1 } },
-	{ Instruction::RIPEMD160, { "RIPEMD160", 0, -1, 1 } },
-	{ Instruction::ECMUL, { "ECMUL", 0, 3, 1 } },
-	{ Instruction::ECADD, { "ECADD", 0, 4, 1 } },
-	{ Instruction::ECSIGN, { "ECSIGN", 0, 2, 1 } },
-	{ Instruction::ECRECOVER, { "ECRECOVER", 0, 4, 1 } },
-	{ Instruction::ECVALID, { "ECVALID", 0, 2, 1 } },
-	{ Instruction::SHA3, { "SHA3", 0, -1, 1 } },
-	{ Instruction::PUSH, { "PUSH", 1, 0, 1 } },
-	{ Instruction::POP, { "POP", 0, 1, 0 } },
-	{ Instruction::DUP, { "DUP", 0, 1, 2 } },
-	{ Instruction::SWAP, { "SWAP", 0, 2, 2 } },
-	{ Instruction::MLOAD, { "MLOAD", 0, 1, 1 } },
-	{ Instruction::MSTORE, { "MSTORE", 0, 2, 0 } },
-	{ Instruction::SLOAD, { "SLOAD", 0, 1, 1 } },
-	{ Instruction::SSTORE, { "SSTORE", 0, 2, 0 } },
-	{ Instruction::JMP, { "JMP", 0, 1, 0 } },
-	{ Instruction::JMPI, { "JMPI", 0, 2, 0 } },
-	{ Instruction::IND, { "IND", 0, 0, 1 } },
-	{ Instruction::EXTRO, { "EXTRO", 0, 2, 1 } },
-	{ Instruction::BALANCE, { "BALANCE", 0, 1, 1 } },
-	{ Instruction::MKTX, { "MKTX", 0, -3, 0 } },
-	{ Instruction::SUICIDE, { "SUICIDE", 0, 1, 0} }
-};
-
-static const std::map<std::string, Instruction> c_instructions =
-{
-	{ "STOP", Instruction::STOP },
-	{ "ADD", Instruction::ADD },
-	{ "SUB", Instruction::SUB },
-	{ "MUL", Instruction::MUL },
-	{ "DIV", Instruction::DIV },
-	{ "SDIV", Instruction::SDIV },
-	{ "MOD", Instruction::MOD },
-	{ "SMOD", Instruction::SMOD },
-	{ "EXP", Instruction::EXP },
-	{ "NEG", Instruction::NEG },
-	{ "LT", Instruction::LT },
-	{ "LE", Instruction::LE },
-	{ "GT", Instruction::GT },
-	{ "GE", Instruction::GE },
-	{ "EQ", Instruction::EQ },
-	{ "NOT", Instruction::NOT },
-	{ "MYADDRESS", Instruction::MYADDRESS },
-	{ "TXSENDER", Instruction::TXSENDER },
-	{ "TXVALUE", Instruction::TXVALUE },
-	{ "TXDATAN", Instruction::TXDATAN },
-	{ "TXDATA", Instruction::TXDATA },
-	{ "BLK_PREVHASH", Instruction::BLK_PREVHASH },
-	{ "BLK_COINBASE", Instruction::BLK_COINBASE },
-	{ "BLK_TIMESTAMP", Instruction::BLK_TIMESTAMP },
-	{ "BLK_NUMBER", Instruction::BLK_NUMBER },
-	{ "BLK_DIFFICULTY", Instruction::BLK_DIFFICULTY },
-	{ "BLK_NONCE", Instruction::BLK_NONCE },
-	{ "BASEFEE", Instruction::BASEFEE },
-	{ "SHA256", Instruction::SHA256 },
-	{ "RIPEMD160", Instruction::RIPEMD160 },
-	{ "ECMUL", Instruction::ECMUL },
-	{ "ECADD", Instruction::ECADD },
-	{ "ECSIGN", Instruction::ECSIGN },
-	{ "ECRECOVER", Instruction::ECRECOVER },
-	{ "ECVALID", Instruction::ECVALID },
-	{ "SHA3", Instruction::SHA3 },
-	{ "PUSH", Instruction::PUSH },
-	{ "POP", Instruction::POP },
-	{ "DUP", Instruction::DUP },
-	{ "SWAP", Instruction::SWAP },
-	{ "MLOAD", Instruction::MLOAD },
-	{ "MSTORE", Instruction::MSTORE },
-	{ "SLOAD", Instruction::SLOAD },
-	{ "SSTORE", Instruction::SSTORE },
-	{ "JMP", Instruction::JMP },
-	{ "JMPI", Instruction::JMPI },
-	{ "IND", Instruction::IND },
-	{ "EXTRO", Instruction::EXTRO },
-	{ "BALANCE", Instruction::BALANCE },
-	{ "MKTX", Instruction::MKTX },
-	{ "SUICIDE", Instruction::SUICIDE }
-};
+extern const std::map<Instruction, InstructionInfo> c_instructionInfo;
+extern const std::map<std::string, Instruction> c_instructions;
 
 u256s assemble(std::string const& _code, bool _quiet = false);
 std::string disassemble(u256s const& _mem);