Simple emulator for the AS/A level assembly used in 9618/9608 syllabus. An old version written in Lua: https://github.com/carrexxii/AS-A-9618-ASM-Emulator.
The instructions are listed in the syllabus: https://www.cambridgeinternational.org/Images/636089-2024-2025-syllabus.pdf#page=21