A modern, web-based simulator for 8051 and 8085 microprocessors built with Python (Flask) and a clean IDE-like web interface.
Live Demo: SimLab
- Modern UI: Clean, IDE-style 3-column layout optimized for both desktop and mobile devices.
- Real-time Assembly & Execution: Assemble code, track errors, run instantly, or step through your code line by line.
- State Tracking: Live updates of RAM, ROM, Registers, and Flags as your code executes.
- Dual Support: Toggle seamlessly between 8051 and 8085 instruction sets.
- AI Helper: Built-in Groq AI assistant to explain code and provide step-by-step tutoring.
A large subset of standard opcodes are supported, including but not limited to:
ADD, ANL, CJNE, CLR, CPL, DA, DEC, DJNZ, INC, JC, JNC, JNZ, JZ, MOV, ORG, ORL, POP, PUSH, RL, RR, SETB, SUBB, SJMP, AJMP, LJMP, JMP, JBC.
A full reference is available in the web interface's "Supported Opcodes" panel.
Credits: Originally forked from devanshshukla99/8051-Simulator, currently maintained and modernized by Rohit K. Shaw.