Alpha Leak | The Bull Case for Modular Blockchains

Fuel VM

The Fuel Virtual Machine (VM) represents a significant departure from the Ethereum Virtual Machine (EVM), offering enhanced performance and flexibility. John Adler explains that the Fuel VM is designed to be an improved version of the EVM, utilizing registers instead of a stack, which boosts performance and reduces gas accounting overhead 1. This design allows for the introduction of new instructions, such as memory copy, which are difficult to implement in the EVM due to governance complexities 1.

The Fuel VM is designed based on the EVM, actually. It's very simple because it's basically the EVM, but improved.

--- John Adler

Additionally, the Fuel VM leverages the full resources of a full node efficiently, minimizing waste and enabling faster transaction execution through multicore and multithreading capabilities 2.

   

Cryptography

Fuel VM's cryptographic innovations allow for more efficient custom cryptography solutions, addressing limitations found in the EVM. John Adler highlights the introduction of memory copy and transient stores, which facilitate cheaper and more efficient cryptographic operations 3. This advancement is particularly beneficial for developers working with custom cryptographic primitives not natively supported by the EVM, such as EDSA signature verification 3.

In the field, VM people will be able to write custom cryptography, different hashing algorithms, different signature schemes.

--- John Adler

Moreover, the Fuel VM's design supports the creation of two-way bridges and optimized settlement layers, enhancing interoperability and efficiency across blockchain networks 4.