Reference

Books

• xv6: a simple teaching operating system
  • book: xv6-book-rev7.pdf
  • booklet of code: xv6-rev7.pdf
  • code archive: xv6-rev7.tar.gz
• The C Programming Language (website)
  

x86 Architecture

• IA-32 Intel Architecture Software Developer's Manual:
  • Volume 1: Basic Architecture
  • Volume 2: Instruction Set Reference
  • Volume 3: System Programming Guide
• Brennan's Guide to Inline Assembly: HTML

Manuals

• GNU manuals: as , gdb, gcc, emacs
• Executable and Linkable Format (ELF): pdf