Documentation for older x86 processors

[Mark Hobley]

Does anyone know where I can download the programming manuals for the
older x86 series of processors. I know that more current versions are available
from Intel in portable document format, but I would like some similar
documentation for the older processors, such as the 80486, the Pentium 75 and
the Pentium 120.

Also, do AMD or Cyrix have similar reference documentation for their
processors? I am specifically interested in programming manuals relating
to the Cyrix 686, AMD K5 and AMD K6 series processors.

Mark.

 

[Franc Zabkar]

Does anyone know where I can download the programming manuals for the
older x86 series of processors. I know that more current versions are available
from Intel in portable document format, but I would like some similar
documentation for the older processors, such as the 80486, the Pentium 75 and
the Pentium 120.

Also, do AMD or Cyrix have similar reference documentation for their
processors? I am specifically interested in programming manuals relating
to the Cyrix 686, AMD K5 and AMD K6 series processors.

Mark.

Try the Wayback Machine:
http://web.archive.org/web/*/www.amd.com
http://web.archive.org/web/*/www.cyrix.com

Some potentially useful URLs:
http://web.archive.org/web/19981203080732/www.amd.com/K6/k6docs/index.html
http://web.archive.org/web/19990127143830/www.amd.com/products/cpg/techdocs/techdocs.html
http://web.archive.org/web/19980127043941/www.cyrix.com/process/hardwrdc/6xMX-dbk.htm

If the PDFs are not in the archive, then try searching the Web for
them once you have identified the document number.

- Franc Zabkar

 

[Mark Hobley]

www.sandpile.org

Hmmm, that looked a useful site. Unfortunately its document links are
all dead. Maybe I can locate the files using a search engine on the
linked filenames.

Cheers,

Mark.

 

[Franc Zabkar]

Hmmm, that looked a useful site. Unfortunately its document links are
all dead. Maybe I can locate the files using a search engine on the
linked filenames.

Cheers,

Mark.

This site may have the datasheets you need:
http://www.datasheetarchive.com

I also have AMD data CDs from that era. If you can't file a particular
document, drop me a line via email.

- Franc Zabkar

 

[Mark Hobley]

This site may have the datasheets you need:
http://www.datasheetarchive.com

I managed to find some stuff on Wikipedia, but I don't know how accurate
it is.

http://en.wikipedia.org/wiki/X86_instruction_listings

I still have queries though:

The instructions bswap,cmpxchg,invd,invlpg,wbinvd,xadd

Do they exist on the AMD K5 and AMD K6?
What about on the Cyrix 686?

And the Pentium instructions: cmpxchg8b, rdmsr, rdtsc, wrmsr ...

Do they exist on the AMD K5 and AMD K6?
What about on the Cyrix 686?

Mark.