8000 GitHub - evertonfraga/evm.lua: EVM bytecode interpreter written in Lua
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EVM.lua

Image description

This project aims to implement a fully compliant EVM in Lua scripting language. It provides scripts to bind it to a Redis database, enabling it to run EVM functions at scale.

Installation

  1. Install Lua, the scripting language. brew install lua on Mac.
  2. Install luarocks, a package manager for Lua: brew install luarocks
  3. Install Redis and run redis-server to start the db.
  4. Run ./load.sh to load evm.lua script into Redis, with some test data.

To-dos:

  • Create and deploy Lua functions that interprets EVM bytecode
  • Feed account storage based on initial list and block number
  • Implement basic benchmark scripts
  • Nested call context
  • Gas metering

Opcodes implemented: 117/152
00✅ 01✅ 02✅ 03✅ 04✅ 05✅ 06✅ 07 08 09 0A✅ 0B
10✅ 11✅ 12✅ 13✅ 14✅ 15✅ 16✅ 17✅ 18 19✅ 1A 1B 1C✅ 1D
20✅
30✅ 31 32 33✅ 34✅ 35✅ 36✅ 37 38 39✅ 3A✅ 3B 3C 3D✅ 3E✅ 3F
40✅ 41 42✅ 43✅ 44 45 46✅ 47 48 49 4A
50✅ 51✅ 52✅ 53✅ 54✅ 55✅ 56✅ 57✅ 58 59 5A✅ 5B✅ 5C✅ 5D✅ 5E 5F✅
60✅ 61✅ 62✅ 63✅ 64✅ 65✅ 66✅ 67✅ 68✅ 69✅ 6A✅ 6B✅ 6C✅ 6D✅ 6E✅ 6F✅
70✅ 71✅ 72✅ 73✅ 74✅ 75✅ 76✅ 77✅ 78✅ 79✅ 7A✅ 7B✅ 7C✅ 7D✅ 7E✅ 7F✅
80✅ 81✅ 82✅ 83✅ 84✅ 85✅ 86✅ 87✅ 88✅ 89✅ 8A✅ 8B✅ 8C✅ 8D✅ 8E✅ 8F✅
90✅ 91✅ 92✅ 93✅ 94✅ 95✅ 96✅ 97✅ 98✅ 99✅ 9A✅ 9B✅ 9C✅ 9D✅ 9E✅ 9F✅
A0✅ A1✅ A2✅ A3✅ A4
B0 B1 B2
F0 F1 F2 F3✅ F4 F5 FA✅ FD✅ FE✅ FF

Install redis-cli on amazon linux 2

sudo yum install wget -y
sudo yum install tcl -y
sudo yum install gcc -y
sudo yum install centos-release-scl -y
sudo yum install devtoolset-9-gcc devtooset-g-gcc-c++ devtoolset-9-binutils -y
sudo yum install openssl-devel* -y

Reference links

Use Redis triggers to do garbage collection: https://redis.io/docs/interact/programmability/triggers-and-functions/examples/

EVM.init should support:

  • new attributes: calldata and depth, starting at 0/1 for each new CALL opcode-type, instantiate a new EVM.init, passing arguments.
  • RETURN should return data from memory, kill the execution context branch. decrement depth. If depth == top depth, return function to external

Running tests

cd tests fswatch -o ../ | xargs -n1 -I{} ./test-arithmetic.sh

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EVM bytecode interpreter written in Lua

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