The Visual 6502
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This simulator uses HTML5 features only found on the latest versions of browsers and needs lots of RAM. If you have trouble, please check compatibility.

Hit '>' to zoom in, '<' to zoom out
Right-click to scroll around
Enter your own program into the array of RAM

Expert:

x: 0
y: 0


Source code is available on GitHub: http://github.com/trebonian/visual6502
In addition to this JavaScript project, see our Python-based simulator which may be easier to customize, verify, and apply to the study of long programs.