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Assembly basics

This is a beginner's guide to assembly and how CPUs execute code.

Introduction
Using the editor
Registers
Memory
Numbers and sizes
Instruction set
Addressing modes
Flags
Structure and lifecycle of a program
Memory regions and executable files

Branching and control flow
Loops
Arithmetic, logic and bits
Data in memory
The stack
Subroutines

System calls and traps
Memory-mapped I/O
Interrupts and exceptions