Ken Shirriff

The article details the collaborative effort to disassemble and decode the microcode ROM of the Intel 80386 processor, which contains 94,720 bits—far larger than the 8086's 10,752 bits. Using high-res…

The article describes the process of extracting and disassembling the microcode ROMs from high-resolution photographs of the Intel 8086 and 8088 dies, revealing the internal instruction sequences of t…