Yeah, Tony was capable of doing whatever the writers wrote him to be capable of, just like every other fictional character. And the writers wrote him doing it in a manner similar to the "programming" in Swordfish or the tech work in NCIS (or whatever show it was that had multiple people typing on one keyboard at the same time). As in difficult to tell if they had any understanding of it at all, sensationalised it for entertainment purposes, deliberately made it unlike any real programming to troll people who do understand programming, or some combination of all those.

MCU science might as well just be another school of magic. Especially when Tony's suit could shapeshift and convert between matter and energy because of some quantum mumbo jumbo. He just cast a quantum spell on it.

Also every movie had multiple impacts in that iron suit that should have been worse for him than most car crashes.