The world's leading source for pure technical x86 processor information

Lecture notes as screenshots of powerpoint slides

Notes on pdf files

Some lecture notes and practice questions

Software model, addressing modes, memory, stacks, example programs

a free publication that offers design and application of microcontrollers for industrial measurement and control

Provides coverage at the level assumed as a pre-requisite for EE521 - so it's a good place to start if you need a refresher

Get the basics right!