Hello
@Extrems and Happy New Year.
I have experienced code dump in Diddy Kong Racing (U) v1.0 in the last release of Not64 that didn't happen in the build from 20171009 (not sure when the issue was introduced.Tthis is the other release that I have) or wii64 beta 1.1 (when I played 100% of the game). It happens when the cinematic to the second encounter with Wizpig (the final boss) is about to start. It's happening everytime while in the other emulators that I mentioned it never happens.
I have attached a save in case you don't have a 100% completed game. In order to reproduce the code dump load the first game file, then move the character to the left as you start, across a doorway in the wall to the beach and head straight to a platform in the sand where some sparks will pop up. Enter the sparks and you will the transfered to the last world. Head straight ahead again and cross the two doors (the one with the clock and the last one with Wizpig in it) and you'll get the code dump.
Here's a video of how to get there. Just go to where the lighthouse was. Start at 0:12, I can't get the video to that moment.