TRONSCAN CLASS — TRON Virtual Machine (TVM)-Part 1

Introduction

TRON Virtual Machine (TVM) is a lightweight, Turing complete virtual machine developed for the TRON’s ecosystem. Its goal is to provide millions of global developers with a custom-built blockchain system that is efficient, convenient, stable, secure and scalable.

TVM can connect seamlessly with existing development ecosystem and supports DPOS. TVM is able to be compatible with EVM environment in the beginning, so that instead of learning a new programming language, developers can develop, debug and compile smart contracts in a Remix environment with Solidity and other languages. Once you’ve built and uploaded your smart contract to TRON’s mainnet, it will be executed on the TVM of the SR node to be isolated from external connections.

Furthermore, TVM employs the concept of Bandwidth. Different from the gas mechanism on Ethereum’s EVM, operations of transaction or smart contracts on TVM are free, with no tokens consumed. Technically, executable computation capacity on TVM is not restricted by total holding of tokens.

Features of TVM

1. Lightweight TVM adopts a lightweight architecture with the aim of reducing resource consumption to guarantee system performance.
2. Stability and security With a meticulous design paradigm and fine-grained underlying operation code, TVM can guarantee the preciseness of every step of a computation, diminishing ambiguity to the largest extent. Out of security reasons, transfers and smart contract running cost only bandwidth points, not TRX, which exempts TRON from being attacked similarly to Ethereum for its mode of gas consumption. Stability of bandwidth consumption is achieved while the cost of each computational step is fixed.
3. Compatibility Currently, TVM is compatible with EVM and will be with more mainstream VMs in the future. Thereby, all smart contracts on EVM are executable on TVM. By connecting seamlessly to existing development ecosystem, higher efficiency can be achieved by developers. Needless to learn a new programming language, they can use mainstream programming languages for smart contract such as Solidity to develop, debug and compile smart contracts in the Remix environment, which greatly reduces development costs.
4. Developer-friendly Thanks to TVM’s bandwidth setup, developments costs are reduced and developers can focus on the logic of their contract code. TVM also offers all-in-one interfaces for contract deployment, triggering and viewing, for the convenience of developers.
   The following interfaces are available in Tron Wallet-CLI:

• deploycontract(password, contractAddress, ABI, code, data, value)
• triggercontract(password, contractAddress, selector, data, value)
• getcontract(contractAddress) Developers can call these interfaces to deploy, trigger or check smart contracts.