Articles by tag: x86-64

Assembler Optimization: How One Letter Speeds Up Code 3x

Experiment with Real Measurements Shows How False Dependencies Between Registers Affect Performance. Learn How to Eliminate Bottlenecks in Low-Level Code.

Returning x86-64 Structures: Registers and MEMORY ABI

Breakdown of return mechanisms for int, small and large structures in x86-64 System V ABI. Assembly examples, hidden rdi arguments. For middle/senior dev. Look under the hood.