Turning a PC off using ACPI?

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I'm trying to power off my PC using ACPI and ASM. This needs to be completely OS independent as it's for my own OS. My Google-fu fails me right now and I'm hoping someone here may have more luck. Tutorials, example code, info about doing stuff with ACPI, anything that I can use is welcome :).
 
Whoa! Good luck...

Are you going to be implement ACPI yourself? If so,

http://www.acpi.info/

Tools - Vendor Specific it would seem

http://www.acpi.info/toolkit.htm

You can get the spec there - nice read LOL - all you need to do is work out how your going to implement it in a platform independent way. Easy ;)

Otherwise you can use:

http://www.acpica.org/documentation/

You'll still need to write your own OS layer to communicate with ACPICA though.
 
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