will the wii u be able to upscale wii games?

[Viper1]

walsufnir said:

Viper1 said:

Yes, there is a lot of backwards compatibility with each new instruction set but the differnces between a PowerPC 750CE and a Power7 CPU means you can't just drop code from the former on the latter and expect it to run.

i read that the nintendo-ppcs offered additional instructions but these can easily be added again.

can you please tell me what the difference exactly is in the isa of the wii-cpu and the power7? which would have to be emulated? looking at the above mentioned wikipedia-article the isa gets *extended* with every new generation - not changed, not exchanged.

Go through this.

http://raidenii.net/files/datasheets/cpu/ppc_broadway.pdf

 

Then read through these.

http://ieeexplore.ieee.org/xpl/tocresult.jsp?reload=true&isnumber=5730623

 

It's not a simple as you are thinking it is.