Home▸Cryptography▸Stack Machine: How Smart Contracts Execute

🧮 Stack Machine: How Smart Contracts Execute

Interactive 3D lab where bytecode opcodes execute one at a time on a stack-based virtual machine, showing values pushed and popped in 3D while SSTORE writes light up persistent storage slots.

Cryptography3DModerate60 FPS

The simulation runs a small fixed bytecode program on a visualized stack-based virtual machine, showing PUSH, ADD, MUL and SSTORE opcodes manipulating a 3D stack of value-cubes and writing results into a persistent storage grid.

🔬 What It Demonstrates

🎮 How to Use

Watch the program counter and current opcode readout as instructions execute automatically, or pause and step through manually with the play/pause button; use rebuild to restart the program from the first instruction and adjust the speed slider to slow down or speed up execution.

💡 Did You Know?

Every opcode in a real stack-based VM like the EVM has a fixed gas cost, so a node can precisely predict the worst-case computational cost of a transaction before executing a single instruction.

⚙ Under the hood

Interactive 3D lab where bytecode opcodes execute one at a time on a stack-based virtual machine, showing values pushed and popped while SSTORE writes light up persistent storage slots.

smart-contractsvirtual-machinestack-machinebytecodeevmcryptography

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install