diff --git a/assembly/lib/ethereum.ts b/assembly/lib/ethereum.ts
index 2f50448..655a065 100644
--- a/assembly/lib/ethereum.ts
+++ b/assembly/lib/ethereum.ts
@@ -2,22 +2,90 @@
 
 import "allocator/arena";
 
+export declare function useGas(amount: i64): void;
+
+export declare function getGasLeft(): i64;
+
+export declare function getAddress(resultOffset: usize): void;
+
+export declare function getBalance(addressOffset: usize, resultOffset: usize): void;
+
+export declare function getBlockCoinbase(resultOffset: usize): void;
+
+export declare function getBlockDifficulty(resultOffset: usize): void;
+
+export declare function getBlockGasLimit(): i64;
+
+export declare function getBlockHash(number: i64, resultOffset: usize): void;
+
+export declare function getBlockNumber(): i64;
+
+export declare function getBlockTimestamp(): i64;
+
+export declare function getTxGasPrice(valueOffset: usize): void;
+
+export declare function getTxOrigin(resultOffset: usize): void;
+
+export declare function log(dataOffset: usize, length: i32, numberOfTopics: i32, topic1: i32, topic2: i32, topic3: i32, topic4: i32): void;
+
+export declare function call(gas: i64, addressOffset: usize, valueOffset: usize, dataOffset: usize, dataLength: i32): i32;
+
+export declare function callCode(gas: i64, addressOffset: usize, valueOffset: usize, dataOffset: usize, dataLength: i32): i32;
+
+export declare function callDelegate(gas: i64, addressOffset: usize, dataOffset: usize, dataLength: i32): i32;
+
+export declare function callStatic(gas: i64, addressOffset: usize, dataOffset: usize, dataLength: i32): i32;
+
+export declare function create(valueOffset: usize, dataOffset: usize, length: i32, resultOffset: usize): i32;
+
+export declare function returnDataCopy(resultOffset: usize, dataOffset: usize, length: i32): void;
+
+export declare function getReturnDataSize(): i32;
+
 @external("return")
-export declare function finish(dataOffset: i32, length: i32): void;
+export declare function finish(dataOffset: usize, length: i32): void;
 
-export declare function revert(dataOffset: i32, length: i32): void;
+export declare function revert(dataOffset: usize, length: i32): void;
 
-export declare function callDataCopy(resultOffset: i32, dataOffset: i32, length: i32): void;
+export declare function callDataCopy(resultOffset: usize, dataOffset: usize, length: i32): void;
 
 export declare function getCallDataSize(): i32;
 
-export declare function getCaller(dataOffset: i32): void;
+export declare function getCaller(resultOffset: usize): void;
+
+export declare function getCallValue(resultOffset: usize): void;
+
+export declare function codeCopy(resultOffset: usize, codeOffset: usize, length: i32): void;
+
+export declare function getCodeSize(): i32;
+
+export declare function externalCodeCopy(addressOffset: usize, resultOffset: usize, codeOffset: usize, lengh: i32): void;
 
-export declare function storageStore(pathOffset: i32, valueOffset: i32): void;
+export declare function getExternalCodeSize(addressOffset: usize): i32;
 
-export declare function storageLoad(pathOffset: i32, resultOffset: i32): void;
+export declare function storageStore(pathOffset: usize, valueOffset: usize): void;
+
+export declare function storageLoad(pathOffset: usize, resultOffset: usize): void;
+
+export declare function selfDestruct(addressOffset: usize): void;
+
+@external("debug", "print32")
+export declare function print32(value: i32): void;
+
+@external("debug", "print64")
+export declare function print64(value: i64): void;
+
+@external("debug", "printMem")
+export declare function printMem(dataOffset: usize, length: i32): void;
 
 @external("debug", "printMemHex")
-export declare function printMemHex(dataOffset: i32, length: i32): void;
+export declare function printMemHex(dataOffset: usize, length: i32): void;
+
+@external("debug", "printStorage")
+export declare function printStorage(pathOffset: usize): void;
+
+@external("debug", "printStorageHex")
+export declare function printStorageHex(pathOffset: usize): void;
 
-// TODO: need to implement a nice wrapper over the native functions which use native types and handles the memory.
+@external("debug", "evmTrace")
+export declare function evmTrace(pc: i32, opcode: i32, cost: i32, sp: i32): void;