Learning about the Interrupt system of the 8085 processor
If you want to learn about interrupt-driven programming by studying old processors, the Z-80 might be a better bet... one of its features was a better interrupt system.

I learned a lot of hard-won lessons by writing an interrupt-driven serial I/O handler for the thing!

But if you're really wanting to learn about interrupts, it might be better to use a CPU where you have easy access to a system for development and test.