diff --git a/libevmjit/Compiler.cpp b/libevmjit/Compiler.cpp
index ccdc21e39a..e711fe7067 100644
--- a/libevmjit/Compiler.cpp
+++ b/libevmjit/Compiler.cpp
@@ -722,14 +722,14 @@ void Compiler::compileBasicBlock(BasicBlock& basicBlock, bytesConstRef bytecode,
 
 		case Instruction::CALLDATASIZE:
 		{
-			auto value = ext.calldatasize();
+			auto value = _runtimeManager.get(RuntimeData::CallDataSize);
 			stack.push(value);
 			break;
 		}
 
 		case Instruction::CODESIZE:
 		{
-			auto value = ext.codesize();
+			auto value = _runtimeManager.get(RuntimeData::CodeSize);
 			stack.push(value);
 			break;
 		}
@@ -749,7 +749,7 @@ void Compiler::compileBasicBlock(BasicBlock& basicBlock, bytesConstRef bytecode,
 			auto reqBytes = stack.pop();
 
 			auto srcPtr = ext.calldata();
-			auto srcSize = ext.calldatasize();
+			auto srcSize = _runtimeManager.get(RuntimeData::CallDataSize);
 
 			memory.copyBytes(srcPtr, srcSize, srcIdx, destMemIdx, reqBytes);
 			break;
@@ -762,7 +762,7 @@ void Compiler::compileBasicBlock(BasicBlock& basicBlock, bytesConstRef bytecode,
 			auto reqBytes = stack.pop();
 
 			auto srcPtr = ext.code();	// TODO: Code & its size are constants, feature #80814234
-			auto srcSize = ext.codesize();
+			auto srcSize = _runtimeManager.get(RuntimeData::CodeSize);
 
 			memory.copyBytes(srcPtr, srcSize, srcIdx, destMemIdx, reqBytes);
 			break;
@@ -791,50 +791,50 @@ void Compiler::compileBasicBlock(BasicBlock& basicBlock, bytesConstRef bytecode,
 		}
 
 		case Instruction::GASPRICE:
-		{
-			auto value = ext.gasprice();
+		{			
+			auto value = _runtimeManager.get(RuntimeData::GasPrice);
 			stack.push(value);
 			break;
 		}
 
 		case Instruction::PREVHASH:
 		{
-			auto value = ext.prevhash();
+			auto value = _runtimeManager.get(RuntimeData::PrevHash);
 			stack.push(value);
 			break;
 		}
 
 		case Instruction::COINBASE:
 		{
-			auto value = ext.coinbase();
+			auto value = _runtimeManager.get(RuntimeData::CoinBase);
 			stack.push(value);
 			break;
 		}
 
 		case Instruction::TIMESTAMP:
 		{
-			auto value = ext.timestamp();
+			auto value = _runtimeManager.get(RuntimeData::TimeStamp);
 			stack.push(value);
 			break;
 		}
 
 		case Instruction::NUMBER:
 		{
-			auto value = ext.number();
+			auto value = _runtimeManager.get(RuntimeData::Number);
 			stack.push(value);
 			break;
 		}
 
 		case Instruction::DIFFICULTY:
 		{
-			auto value = ext.difficulty();
+			auto value = _runtimeManager.get(RuntimeData::Difficulty);
 			stack.push(value);
 			break;
 		}
 
 		case Instruction::GASLIMIT:
 		{
-			auto value = ext.gaslimit();
+			auto value = _runtimeManager.get(RuntimeData::GasLimit);
 			stack.push(value);
 			break;
 		}
diff --git a/libevmjit/Ext.cpp b/libevmjit/Ext.cpp
index 741bd99932..1adaf741c0 100644
--- a/libevmjit/Ext.cpp
+++ b/libevmjit/Ext.cpp
@@ -27,15 +27,6 @@ inline u256 fromAddress(Address _a)
 
 struct ExtData 
 {
-	i256 calldatasize;
-	i256 gasprice;
-	i256 prevhash;
-	i256 coinbase;
-	i256 timestamp;
-	i256 number;
-	i256 difficulty;
-	i256 gaslimit;
-	i256 codesize;
 	const byte* calldata;
 	const byte* code;
 };
@@ -61,15 +52,6 @@ Ext::Ext(RuntimeManager& _runtimeManager):
 	m_arg8 = m_builder.CreateAlloca(i256Ty, nullptr, "ext.arg8");
 
 	Type* elements[] = {
-		i256Ty,	 // i256 calldatasize;
-		i256Ty,	 // i256 gasprice;
-		i256Ty,	 // i256 prevhash;
-		i256Ty,	 // i256 coinbase;
-		i256Ty,	 // i256 timestamp;
-		i256Ty,	 // i256 number;
-		i256Ty,	 // i256 difficulty;
-		i256Ty,	 // i256 gaslimit;
-		i256Ty,  // i256 codesize
 		i8PtrTy, // byte* calldata
 		i8PtrTy, // byte* code
 
@@ -118,17 +100,8 @@ Value* Ext::getDataElem(unsigned _index, const Twine& _name)
 	return m_builder.CreateLoad(valuePtr);
 }
 
-Value* Ext::calldatasize() { return getDataElem(0, "calldatasize"); }
-Value* Ext::gasprice() { return getDataElem(1, "gasprice"); }
-Value* Ext::prevhash() { return getDataElem(2, "prevhash"); }
-Value* Ext::coinbase() { return getDataElem(3, "coinbase"); }
-Value* Ext::timestamp() { return getDataElem(4, "timestamp"); }
-Value* Ext::number() { return getDataElem(5, "number"); }
-Value* Ext::difficulty() { return getDataElem(6, "difficulty"); }
-Value* Ext::gaslimit() { return getDataElem(7, "gaslimit"); }
-Value* Ext::codesize() { return getDataElem(8, "codesize"); }
-Value* Ext::calldata() { return getDataElem(9, "calldata"); }
-Value* Ext::code() { return getDataElem(10, "code"); }
+Value* Ext::calldata() { return getDataElem(0, "calldata"); }
+Value* Ext::code() { return getDataElem(1, "code"); }
 
 Value* Ext::calldataload(Value* _index)
 {
@@ -231,15 +204,6 @@ using namespace dev::eth::jit;
 EXPORT void ext_init(ExtData* _extData)
 {
 	auto&& ext = Runtime::getExt();
-	_extData->gasprice = eth2llvm(ext.gasPrice);
-	_extData->calldatasize = eth2llvm(ext.data.size());
-	_extData->prevhash = eth2llvm(ext.previousBlock.hash);
-	_extData->coinbase = eth2llvm(fromAddress(ext.currentBlock.coinbaseAddress));
-	_extData->timestamp = eth2llvm(ext.currentBlock.timestamp);
-	_extData->number = eth2llvm(ext.currentBlock.number);
-	_extData->difficulty = eth2llvm(ext.currentBlock.difficulty);
-	_extData->gaslimit = eth2llvm(ext.currentBlock.gasLimit);
-	_extData->codesize = eth2llvm(ext.code.size());
 	_extData->calldata = ext.data.data();
 	_extData->code = ext.code.data();
 }
diff --git a/libevmjit/Ext.h b/libevmjit/Ext.h
index 5585f9d059..62938f3cb0 100644
--- a/libevmjit/Ext.h
+++ b/libevmjit/Ext.h
@@ -20,15 +20,6 @@ public:
 	llvm::Value* store(llvm::Value* _index);
 	void setStore(llvm::Value* _index, llvm::Value* _value);
 
-	llvm::Value* calldatasize();
-	llvm::Value* gasprice();
-	llvm::Value* prevhash();
-	llvm::Value* coinbase();
-	llvm::Value* timestamp();
-	llvm::Value* number();
-	llvm::Value* difficulty();
-	llvm::Value* gaslimit();
-	llvm::Value* codesize();
 	llvm::Value* calldata();
 	llvm::Value* code();
 
diff --git a/libevmjit/Runtime.cpp b/libevmjit/Runtime.cpp
index 374398b696..42d2fe52f3 100644
--- a/libevmjit/Runtime.cpp
+++ b/libevmjit/Runtime.cpp
@@ -41,6 +41,15 @@ llvm::Twine getName(RuntimeData::Index _index)
 	case RuntimeData::Caller:		return "caller";
 	case RuntimeData::Origin:		return "origin";
 	case RuntimeData::CallValue:	return "callvalue";
+	case RuntimeData::CallDataSize:	return "calldatasize";
+	case RuntimeData::GasPrice:		return "gasprice";
+	case RuntimeData::PrevHash:		return "prevhash";
+	case RuntimeData::CoinBase:		return "coinbase";
+	case RuntimeData::TimeStamp:	return "timestamp";
+	case RuntimeData::Number:		return "number";
+	case RuntimeData::Difficulty:	return "difficulty";
+	case RuntimeData::GasLimit:		return "gaslimit";
+	case RuntimeData::CodeSize:		return "codesize";
 	}
 }
 }
@@ -57,6 +66,15 @@ Runtime::Runtime(u256 _gas, ExtVMFace& _ext):
 	set(RuntimeData::Caller, fromAddress(_ext.caller));
 	set(RuntimeData::Origin, fromAddress(_ext.origin));
 	set(RuntimeData::CallValue, _ext.value);
+	set(RuntimeData::CallDataSize, _ext.data.size());
+	set(RuntimeData::GasPrice, _ext.gasPrice);
+	set(RuntimeData::PrevHash, _ext.previousBlock.hash);
+	set(RuntimeData::CoinBase, fromAddress(_ext.currentBlock.coinbaseAddress));
+	set(RuntimeData::TimeStamp, _ext.currentBlock.timestamp);
+	set(RuntimeData::Number, _ext.currentBlock.number);
+	set(RuntimeData::Difficulty, _ext.currentBlock.difficulty);
+	set(RuntimeData::GasLimit, _ext.currentBlock.gasLimit);
+	set(RuntimeData::CodeSize, _ext.code.size());	// TODO: Use constant
 }
 
 Runtime::~Runtime()
diff --git a/libevmjit/Runtime.h b/libevmjit/Runtime.h
index 3300b4106e..478c212b1e 100644
--- a/libevmjit/Runtime.h
+++ b/libevmjit/Runtime.h
@@ -31,6 +31,15 @@ struct RuntimeData
 		Caller,
 		Origin,
 		CallValue,
+		CallDataSize,
+		GasPrice,
+		PrevHash,
+		CoinBase,
+		TimeStamp,
+		Number,
+		Difficulty,
+		GasLimit,
+		CodeSize,
 
 		_size
 	};