Hello!

To prepare for this jam I have been following this tutorial https://en.wikibooks.org/wiki/Super_NES_Programming/Initialization_Tutorial to set up my tools.  The code I built works great on Snes9x and bsnes but on Mesen-S it creates a corrupted graphic with a square MissingNo type pattern (I can't add a screenshot to this post for some reason).  The goal is a solid green screen.  Any ideas what is wrong (is it my code or the emulator)? It's been a struggle to get started learning snes development and I've found many nonworking hello world examples. 

Most importantly is there a way to be sure my code works when I submit to the jam (without owning hardware)? The jam lists mesen and bsnes as the recommended emulators but even at the learning stage I am getting differences between them.

Also this code: https://github.com/SlithyMatt/snes-hello works on snes9x, creates corrupted sprites on mesen-s, creates a pink background on bsnes and creates a black background on bsnes-plus.  I feel like I'm losing my mind already

Hey. Ive been following the same tutorials lately, and got the same results as you have at first. I managed to fix it, but cant remember exactly how i did it right now. Seems to me though, that 9 times out of 10, it was some sep rep fubar... ie 16 bit when it should have been 8 or vice versa.