Big Endian zelda3 compiles but corrupt graphics and closes

[Link4Electronics]

Describe your bug here. And how to reproduce it.

I compiled the code on a Big Endian machine, PowerMac G5 running Debian sid PPC64, the program runs as in the screenshot, shows a corrupted triforce intro for a few seconds and then crashes.

The zelda3_assets.dat generated on a big endian system has a CRC 27377A48, and on a little endian CRC 1DE3741F
When using the one generaton on a little endian system, this error shows on console, Error: Invalid assets file

I already suspect that big endian isn't a supported platform, but getting this close to even render (despide corrupt) intro, makes me wonder if there's some byte swapping involved in accessing the file and/or generating the assets.dat file.

What is your build target?

Linux