If you have fond memories of flashing custom BIOSes that made hidden features accessible for you to tweak with then this story at Slashdot is going to excite you.  It seems a hardware hacker has posted documentation on a way to enable a debug mode in AMD processors.  If you are more into enabling cores via ACC then this might not be your cup of silicon tea but for many the idea of getting up close and personal with AMD’s registers makes them a little hot. 

If the original article is still down, this commenter has copied the post from a cache.

“A hidden (and hardware password protected, by means of required special values in processor registers) debug mode has been found in AMD processors, and documented by a reverse engineer called Czernobyl on the RCE Forums community today. It enables powerful hardware debugging features long longed for by reverse engineers, such as hardware data-aware conditional breakpoints, and direct hardware ‘page guard’-style breakpoints. And the best part is, it’s sitting right there in your processor already, just read the details and off you go with the debugging ninja powers!”

Here is some more Tech News from around the web:

Tech Talk