> Why did you have to memorize everything? I have also done x86 assembly. You remember what you can. You look up the rest. Same today. Looking stuff up took a

> Why did you have to memorize everything? I have also done x86 assembly. You remember what you can. You look up the rest. Same today. Looking stuff up took a lot longer then. It's the difference between firing up a search engine and typing words versus getting in your car, driving to the library, finding parking, walking to the door, finding the card catalog, finding the right card in the catalog, finding the right stack, finding the book on the shelf, scanning the book index, then finding the right page in the book. Memorizing had a better payoff back then. Or think of it another way: looking stuff up today is like accessing L2 memory, and back then it was like a cache miss, where you had to take a trip out to disk before you could continue useful work.