You can watch your code run at actual speed or slow it down to inspect registers.

: A refined ASM routine to handle the user-added key signals.

Most keys only work for specific versions (e.g., v1.3 vs v1.6).

Whether you're a student trying to blink your first LED or a pro debugging a complex control loop, the user-supported ecosystem around this simulator provides the bridge you need between code and reality.

To create a advanced users—hobbyists, students, and engineers—often add custom "keys." In this context, a "key" is defined as a critical addition that unlocks a more realistic simulation experience.