This Web site is a great reference for any assembly language programmers of the 32- or 64-bit x86 architectures. It has complete information about register locations and contents, instruction operation codes, and data representations. Details about interrupt and exception handling, as well as reset states, are also given. Aside from the architecture descriptions, profiles about specific...

In contrast to high level languages like C and Java, assembly language programming is more fundamental to computer operation. This site has extensive information about different assembly languages, including Windows, Linux, and DOS. There are online books, titled The Art of Assembly Language Programming, that can be downloaded for each of these platforms. These books are excellent for beginners....