Updated Aug 7, 2026 ยท v1.1
A Heathkit ET-3400 Simulator
The app simulates a Heathkit ET-3400. This was an inexpensive computer from 1977 for people to learn about computing and programming. With the app you can enter programs in machine code and see the result on the 6 LED digits. It emulates the Motorola 6800 8 bit processor and contains the original ROM and 256 bytes of ram.
2 years on Google Play
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