alt Hacker NewsI recently purchased Computer Systems: A Programmer's Perspective [0] and am currently working through it with pen and paper.
I've only had peripheral exposure to writing in assembly and "systems level" programming so I'm really quite enjoying it.
[0] https://www.amazon.com/Computer-Systems-Programmers-Perspect...
Nice; This is the only book of which i have all three editions.
You might also want to get the 1st edition to understand how the earlier 32-bit programming differs from the current 64-bit programming. You can probably get it for free/throwaway-price.
Pair your CSAPP book with Advanced C and C++ Compiling by Milan Stevanovic and you can become a "Low-level System Programming Guru" ;-)