If you want to "[...]implement CPUs, programmable logic[...]" I would rather go with "The Elements of Computing Systems" [0].
On the other hand, if you are into gaming and want to experience a sandbox building game with a huge, albeit rather premature, community and lot of modding going on, give it a try, it is about 15 €. [1]
On the other hand, if you are into gaming and want to experience a sandbox building game with a huge, albeit rather premature, community and lot of modding going on, give it a try, it is about 15 €. [1]
[0] http://www1.idc.ac.il/tecs/
[1] http://www.minecraft.net/