One of the most important steps of my career was being forced to write code for an 8051 microcontroller. Then writing firmware for an ARM microcontroller to make it pretend it was that same 8051 microcontroller.
I was made to witness the horrors of archaic computer architecture in such depth that I could reproduce them on totally unrelated hardware.
I was made to witness the horrors of archaic computer architecture in such depth that I could reproduce them on totally unrelated hardware.