Abych se priznal, jeste jsem ho osobne neresil. Pouze z doslechu...

Ae neco jsem vygooglil - http://www.experts-exchange.com/Hard...3.html#8505720
http://hardwareanalysis.com/content/topic/6312/
http://hardwareanalysis.com/content/topic/3191/
http://www.experts-exchange.com/Hard..._20612853.html
http://www.examnotes.net/article1007682.html

Jak vidno stava se to pomerne casto... Zkus naka reseni a dej vedet....

BTW: Opravdu neni nutno psat "dulezita sdeleni" tucne...