So I noticed the 44 pin versions of the W65C816S have two internal logic ground (VSS) pins right in-between address pins 11 and 12. You can see this on pages 10 and 11 on the datasheet.
Surely they must have had a reason, right? Does it make it easier to ground everything in the chip, like with less distance to all the components, putting them in the middle like this?
There’s also a not connected pin in-between A1 and A2.