  Modern quantum computers rely heavily on real-time control systems for
operation. Software for these systems is becoming increasingly more complex due
to the demand for more features and more real-time devices to control.
Unfortunately, testing real-time control software is often a complex process,
and existing simulation software is not usable or practical for software
testing. For this purpose, we implemented an interactive simulator that
simulates signals at the application programming interface level. We show that
our simulation infrastructure simulates kernels 6.9 times faster on average
compared to execution on hardware, while the position of the timeline cursor is
simulated with an average accuracy of 97.9% when choosing the appropriate
configuration.
