Came here to say this. "Hacker's Delight" is essential reading if you are an embedded programmer working in small spaces. And by small, I mean writing code to

Came here to say this. "Hacker's Delight" is essential reading if you are an embedded programmer working in small spaces. And by small, I mean writing code to fit on a credit card, transit ticket, or SIM card. (Yes <2KB ROM budgets still exist.)