The Assembly Page

The page contains documentation about architectures, assembly, instruction set, ISA or whatever you name it:

x86 (both x86 and x64)

http://ref.x86asm.net/

ARM

http://www.ch01a.net/static/armref/index.html

Power PC
http://web.archive.org/web/20071006155454/www.nersc.gov/vendor_docs/ibm/asm/alangref02.htm

SPARC

Click to access V8.pdf

Click to access SPARCV9.pdf

http://www.cs.unm.edu/~maccabe/classes/341/labman/labman.html