32-bit PowerPC implementations do support little endian mode, but not from power-on reset. You can have a little stub handler that basically does the switch to

32-bit PowerPC implementations do support little endian mode, but not from power-on reset. You can have a little stub handler that basically does the switch to LE by setting MSR.{LE,ILE} via srr1 and then performing a RFI after loading the return address into srr0. It is notoriously difficult to write bi-endian code though. I really wish there were assembly directives to change the word swapping per instruction instead of doing it manually, for my own sanity. I think the 970 supports this too, but it’s a bit weirder with the MSR.HV settings. Note that little endian mode on PPC affects all memory accesses, including real mode when MSR.ILE is set.