nand2mario

Disassembling the 80386 Microcode: A Deep Dive into Intel's Processor Architecture

A technical blog post detailing the author's process of disassembling and analyzing the microcode ROM of the Intel 80386 microprocessor. The author describes receiving a high-resolution image of the microcode ROM from Ken Shirriff, the challenges of working with a 94,720-bit ROM (compared to the 8086's 10,752 bits), and the methods used to decode and underst