Technically a 16-bit register if I'm not mistaken (but that's just splitting hairs; it only uses 12 bits). Here's a short article on the configuration: http://

Technically a 16-bit register if I'm not mistaken (but that's just splitting hairs; it only uses 12 bits). Here's a short article on the configuration: http://www.gamefaqs.com/snes/916396-super-nintendo/faqs/5395 http://www.gamefaqs.com/snes/916396-super-nintendo/faqs/5395