x86

Raymond Chen explores why x86 compilers universally prefer "xor eax,eax" over "sub eax,eax" to zero a register, attributing it to historical momentum and slightly safer flag behavior rather than technical superiority.

Theseus is a new static Windows/x86 emulator that translates programs at compile-time rather than interpreting or JIT-compiling them at runtime, representing an alternative approach to traditional emulation architectures.

A detailed technical analysis of the Intel 8086 processor's arithmetic-logic unit (ALU) control circuitry, explaining how microcode and control signals coordinate to perform 28 different operations.

Detailed reverse engineering of the 386 processor's prefetch queue circuitry, explaining the incrementer, alignment network, and dynamic logic used.