Mnementh said:
Porting difficulty isn't much about the processor-architecture. OK, something really exotic might be problematic, but PowerPC, ARM and x86 all have good compiler-support. So the porting difficulty because of CPU is nearly irrelevant. |
Porting from PPc to x86 is not an issue, but porting from x86 to PPc is and issue because x86 uses far more memory than PPc does. For instance Rayman Legends was built from the ground up on the Wii U and was easily ported to the XB1 and PS4. Wii U multiplats are either games built from the ground up, or ports from thr 360 version which also uses PPc and has a tri-core processor.
The ARM processor in the Wii U is used only for the OS. The Tri-Core PowerPC750 and DSP sound module are for game use. The way PPc and x86 use system resources is totally different and it is not easy to port which is why most 3rd parties don't bother.