vyorkin

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

/*
Note: cannot use web3 on JVM, so use the contract deployed on ropsten
Note: browser Web3 is old so use Web3 from truffle console

Contract deployed on Ropsten
0x3505a02BCDFbb225988161a95528bfDb279faD6b
*/

vyorkin

REMIX EXAMPLE PROJECT

Remix example project is present when Remix loads for the very first time or there are no files existing in the File Explorer. 
It contains 3 directories:

1. 'contracts': Holds three contracts with different complexity level, denoted with number prefix in file name.
2. 'scripts': Holds two scripts to deploy a contract. It is explained below.
3. 'tests': Contains one test file for 'Ballot' contract with unit tests in Solidity.

SCRIPTS

vyorkin

REMIX EXAMPLE PROJECT

Remix example project is present when Remix loads for the very first time or there are no files existing in the File Explorer. 
It contains 3 directories:

1. 'contracts': Holds three contracts with different complexity level, denoted with number prefix in file name.
2. 'scripts': Holds two scripts to deploy a contract. It is explained below.
3. 'tests': Contains one test file for 'Ballot' contract with unit tests in Solidity.

SCRIPTS

vyorkin

REMIX EXAMPLE PROJECT

Remix example project is present when Remix loads for the very first time or there are no files existing in the File Explorer. 
It contains 3 directories:

1. 'contracts': Holds three contracts with different complexity level, denoted with number prefix in file name.
2. 'scripts': Holds two scripts to deploy a contract. It is explained below.
3. 'tests': Contains one test file for 'Ballot' contract with unit tests in Solidity.

SCRIPTS

vyorkin

REMIX EXAMPLE PROJECT

Remix example project is present when Remix loads for the very first time or there are no files existing in the File Explorer. 
It contains 3 directories:

1. 'contracts': Holds three contracts with different complexity level, denoted with number prefix in file name.
2. 'scripts': Holds two scripts to deploy a contract. It is explained below.
3. 'tests': Contains one test file for 'Ballot' contract with unit tests in Solidity.

SCRIPTS

vyorkin

REMIX EXAMPLE PROJECT

Remix example project is present when Remix loads for the very first time or there are no files existing in the File Explorer. 
It contains 3 directories:

1. 'contracts': Holds three contracts with different complexity level, denoted with number prefix in file name.
2. 'scripts': Holds two scripts to deploy a contract. It is explained below.
3. 'tests': Contains one test file for 'Ballot' contract with unit tests in Solidity.

SCRIPTS

vyorkin

set selection-clipboard clipboard
set statusbar-h-padding 0
set statusbar-v-padding 0
set smooth-scroll true
set statusbar-home-tilde true
set page-padding 1

map u scroll half-up
map d scroll half-down
map D toggle_page_mode

vyorkin

• sp - Substrate Primitives

• sc - Substrate Client

• sp-api - Substrate runtime API

• sp-consensus - Common utilities for building and using consensus engines in Substrate

• sp-consensus-aura - Primitives for Aura PoA consensus engine

• sc-consensus-aura - Client primitives for Aura PoA consensus engine

• sp-core - Shareable Substrate types

• sp-finality-grandpa - Primitives for GRANDPA integration, suitable for WASM compilation

• sp-runtime - Runtime Modules shared primitive types

vyorkin

{-# LANGUAGE ScopedTypeVariables #-}

import Foreign.Marshal.Array (newArray)
import Control.Exception (bracket)
import Data.Int (Int8)
import System.IO (IOMode(..), openBinaryFile, hClose, hPutBuf, hFlush)

main :: IO ()
main = bracket (openBinaryFile "rom.bin" WriteMode) hClose $ \handle -> do
  let bytes = replicate 32768 (0xea :: Int8)

vyorkin

{ nixpkgs ? import <nixpkgs> {}, compiler ? "ghc7102" }:

let
  inherit (nixpkgs) pkgs;
  metapkgs = import (builtins.fetchTarball "https://github.com/matthewbauer/metapkgs/archive/master.tar.gz");
  ghc = metapkgs.${compiler};
in pkgs.stdenv.mkDerivation {
  name = "my-haskell-env-0";
  buildInputs = [ ghc nixpkgs.zlib ];
  shellHook = "eval $(egrep ^export ${ghc}/bin/ghc)";