Further Information

• http://users.rcn.com/eaj.pizzi/pizzios/
  
  View the code for an operating system that makes use of protected mode programming. A good source for information. This has sample code illustrating concepts discussed in this site, as well as more advanced concepts such as interrupt implementation.
  
  
• http://people.freebsd.org/~jhb/386htm/toc.htm
  
  Intel's 80386 reference manual. Documentation straight from intel. Contains painstaking detail on advanced protected mode features, many of which are beyond the scope of this site. You can also find details about every Intel-supported assembly instruction in the site's appendix.
  
  
• http://webster.cs.ucr.edu/Page_asm/ArtOfAsm.html
  
  Detailed discussion of assembly language programming. Contains sections for Windows, DOS, and Linux programming.