Free & Open Source

Intel 8085
in your pocket

Intel 8085 microprocessor simulator - write, run & debug assembly on your phone.

Get it on Google PlayFree
10+ downloadsv1.0.0
No ads Works offline No data collectionFree & open source
Features

Everything you need to learn 8085

Full CPU simulation

Complete Intel 8085 instruction set with accurate timing, flags, and register state.

Built-in assembler

Write mnemonics, assemble to hex opcodes, and load into memory - all on-device.

Step debugger

Execute one instruction at a time. Watch registers, flags, and memory update in real time.

Register & flag viewer

Live display of A, B, C, D, E, H, L, SP, PC, and all five flags with visual indicators.

Memory editor

Browse and edit raw memory. Load hex files directly into the simulated address space.

CLI-style interface

Monospace terminal UI inspired by classic development environments. Fast and focused.

Code

8085 programming examples

Browse through curated examples organized by category. Click any program to view the 8085 assembly source.

Screenshots

See it in action

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What's newv1.0.0 · Aug 2026
Examples updated with workflow optimizations!

Your data stays
on your device

HexA8085 is a fully offline simulator. It makes no network requests, collects no data, and requires no account. Every byte of your code and simulation state stays on your phone.

No accountZero telemetryWorks offlineOpen sourceNo ads

Learn 8085 assembly.
Anywhere.

No textbooks, no simulators stuck on a desktop. Just your phone and the full Intel 8085 instruction set at your fingertips.

Get HexA8085 on Google Play