From Zero to the CPU: How Modern Processors Make Programs Run – Kobo eBook

A program describes work in order. A modern processor overlaps that work, predicts what comes next, and moves data through several layers of storage. Understanding the gap helps programmers explain performance without treating every timing result as proof of a particular hardware mechanism.

From Zero to the CPU builds that understanding step by step. Short instruction traces and worked calculations introduce pipelines, branch prediction, and caches. Runnable models then develop superscalar execution, register renaming, scheduling, precise exceptions, memory dependencies, and the front end. Later chapters examine SIMD, SMT, cache coherence, memory ordering, and NUMA before bringing the pieces together through performance analysis, power and clock limits, Spectre, and virtual memory.

The book distinguishes architectural guarantees from implementation choices, model output from hardware measurements, and observed results from possible explanations. Python models provide a portable starting point; C benchmarks, Verilog examples, and Linux counters state their platform requirements. The explanations stand on their own, so running the accompanying code is optional.

For software engineers and computing students who know basic programming and binary arithmetic and want to reason about the processor behind their programs.

Every book in the From Zero series is written for readers with no background: intuition and analogies first, math and detail only when they are needed, so a whole field becomes a path you can walk on your own.