Give me a second to see if I can compile a version for 32 bits. It’s open source and written in Haskell, so… I should be able to.
Edit: https://stackoverflow.com/a/40023753/1644720
Seems like it’s not so trivial (I’d have to install a 32 bit version of GHC).
Is it possible for you to just send the png file you’re trying to convert, so one of us can run Png2Dmp and you can just #incbin it?