LepusWeb is a complete, in-browser assembler and emulator for the LEPUS-8, a custom 8-bit microcomputer architecture. It allows you to write assembly code, compile it directly in the browser, and step through the execution visually.
- Custom 8-bit Architecture: Features 256 bytes of memory divided into strict zones (Program, Stack, Scratchpad, and Video).
- Domain-Specific Registers: Three main registers (A, B, C) dedicated to Arithmetic, Bitwise logic, and Shifting operations.
- Memory-Mapped Graphics: A 24x24 pixel monochrome display mapped directly to the 0xB8 to 0xFF memory range.
- Live Debugging: Watch registers, memory cells, and CPU flags update in real time as your program executes.
- Variable Execution Speed: Step through code line by line, run at a readable speed, or use Turbo Mode to execute intense loops instantly.
If you are new to the LEPUS-8 architecture or want to learn how to write assembly for this system, please read the official documentation:
LEPUS-8 Instruction Set Glossary and Tutorial
The glossary includes a detailed breakdown of the memory map, registers, addressing modes (including indirect pointers), and a complete table of every supported assembly instruction.
The emulator is deployed and runs entirely on the client side in your web browser. You can try it directly here: