evm-opcodes
ethereumjs-monorepo


evm-opcodes | ethereumjs-monorepo | |
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8 | 14 | |
1,329 | 2,634 | |
0.2% | 0.6% | |
0.0 | 9.6 | |
6 months ago | 5 days ago | |
TypeScript | ||
Apache License 2.0 | Mozilla Public License 2.0 |
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
evm-opcodes
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All About EVM Instructions And Opcodes:
It is very important for the smart contract developers and auditors to undertand that how solidity based smart contracts/EVM executes its fundamental tasks behind the scenes to get deep foundation of EVM. To know more about the other EVM opcodes, please visit Here and if you want to play with these opcodes in the real time playground, please visit EVM codes playground website .
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Ethernaut: 13. Gatekeeper One
Debug the transaction in Remix to get to the GAS opcode, which is what gasleft() is doing in the background. There, we will look at the remaining gas field in "Step Details". You can easily get there in several ways:
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What is Gas on Ethereum (and other blockchains)? Deep dive
Each OPCODE has a fixed gas cost. The gas cost of a specific function within the smart contract is the sum of the gas costs of all it's OPCODES. You can find a list of all OPCODES and their associated gas costs here if interested.
- Daily General Discussion - February 8, 2022
- Good morning to everyone who believes ETH 2.0 would be a game-changer
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Gas fees should be zero if a transaction didn't go through
And so, each instruction is given a metric that represents how intensive it is to execute, which is that instruction's gas cost, and users have to pay a fee based on how much gas in total a transaction consumes, which is the solution that the Ethereum devs (and the devs of other smart contract chains) have landed on, to address the above issue.
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Might be a dumb question: Are there any ETH L2s that have a java virtual machine for transactions?
The EVM has a smaller instruction set of opcodes that are very tailored to Smart Contract development compared to what the JVM offers which is a wider set required for programming almost anything.
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Smart Contracts
Everytging a smart contract can do is detailed here: https://github.com/crytic/evm-opcodes
ethereumjs-monorepo
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How ethereum has been made from scratch ?
EthereumJS VM is an Ethereum client written in javascript, so if you can write an Ethereum client in JavaScript it seems pretty reasonable that you could write an alternative with Javascript. The thing is, EthereumJS VM isn't actually fast enough to keep up with the mainnet blockchain, and it would be difficult to write a full featured blockchain with a turing complete scripting language that could process transactions on par with the volume of transactions Ethereum handles in JavaScript for performance reasons. Certainly you could write something lower volume in JavaScript.
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Unlocking the Lockbox2 | ParadigmCTF’22
If it is a precompile, then we have just a handful of choices.
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How to learn more about the EVM
For instance, when I first read the EVM source code I knew JS the best, thus I read the source code from the Ethereum JS GitHub repo: https://github.com/ethereumjs/ethereumjs-monorepo/tree/master/packages/evm
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Daily General Discussion - May 20, 2022
Daily Kiln: Beacon sync merged to master for ethereumjs. Still trying to solve The Mystery of the Missing Receipts. Sometimes a CL client throws an error about non-consecutive deposit indexes, and it doesn't resolve without a fresh sync. There was a regression in lighthouse that I was helping troubleshoot for a couple of new testers in #testingthemerge. There's an open PR that fixes it.
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Daily General Discussion - May 16, 2022
Daily Kiln: erigon is fixed, so I'm back to lighthouse-ethereumjs being the only client pair with issues. This PR might fix that, but I'm waiting until optimistic sync gets merged to the master branch before switching back to it.
- Understanding the Ethereum Virtual Machine (EVM)
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Daily General Discussion - May 12, 2022
Daily Kiln: sproul (from lighthouse) was able to use some information I provided to troubleshoot issues with lighthouse-ethereumjs. ethereumjs is missing some fields required by the spec in the response to eth_getBlockByHash. In addition, he created an issue for lighthouse so it won't mark the EL as offline if a non-essential API call fails.
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Daily General Discussion - March 29, 2022
Daily Kiln: lighthouse and nimbus both pushed updates which fixed syncing with ethereumjs by increasing the timeout for engine_new_payload (as well as engine_forkchoice_updated in just lighthouse). ethereumjs has a pending pull request which should improve speed by only executing the block in engine_new_payload. There's a strong possibility that I'll have 25/25 client pairs synced and attesting by tomorrow.
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Daily General Discussion - March 12, 2022
Daily Kiln: Today's focus was ethereumjs. I set up all five client pairs. I addressed a number of issues that I encountered in their Discord with ryanio - mostly incorrectly handled RPC calls - and one of those issues resulted in a pull request to fix compatibility with teku.
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Might be a dumb question: Are there any ETH L2s that have a java virtual machine for transactions?
JavasScript (from ethereumjs)
What are some alternatives?
Leesons-Modding-Instructions - The recordings of my 2 and 1/2 week journey to get a setup running for dynamic testing of Android malware
evmone - Fast Ethereum Virtual Machine implementation
remix-ide - Documentation for Remix IDE
evm - Pure Rust implementation of Ethereum Virtual Machine
hardhat-tracer - 🕵️ allows you to see internal calls, events and storage operations in the console
besu - An enterprise-grade Java-based, Apache 2.0 licensed Ethereum client https://wiki.hyperledger.org/display/besu
clientdiversity-org - This is the source code for https://clientdiversity.org, a resource site to assist client diversity efforts.
pm - Project Management: Meeting notes and agenda items
ethereumjs-vm - Monorepo for the Ethereum VM TypeScript Implementation [Moved to: https://github.com/ethereumjs/ethereumjs-monorepo]
l2beat - L2BEAT is an analytics and research website about Ethereum layer two (L2) scaling solutions.
whatsabi - Extract the ABI (and resolve proxies, and get other metadata) from Ethereum bytecode, even without source code.

