3 ms·
Likely useful: https://github.com/mist64/perfect6502 https://github.com/mist64/perfect6502 and http://www.visual6502.org/ http://www.visual6502.org/. These are
by peterkelly 3y ago
Likely useful: https://github.com/mist64/perfect6502 https://github.com/mist64/perfect6502 and http://www.visual6502.org/ http://www.visual6502.org/. These are transistor-level simulations based on die shots. From these you can derive the cycle times of each instruction with 100% confidence.