In the probabilities of things, the longer it takes for PS5 to release the higher the probability for BC. If it were released this year like SA somewhat implies i would give it a low probability, at least, to ship with BC.
I think Sony can implement any hardware customizations to enable BC and thus I expect it to be supported in a hardware form. The business of BC is something else entirely. Licensing agreements, or how licenses are handled are a different matter which are MS greatest hurdles at the moment.
Could hardware emulation be a way around the matter of licensing? For disks at least.
Since Microsoft's approach to X360 emulation requires you to download a per-game emulator, they have to distribute content through their network, so it makes sense that licensing issues would follow.
If, hypothetically, the PS5 was technically able to hardware emulate the PS3, do you know or think issues might arise with say, emulating the Nvidia GPU in the PS3?
It was a patent to change the timings of a piece of hardware test BC I believe.
Yeah, I read that it involved different cache sizes too. I'm only going by what others have said about it - I had a brief look at the patent, but I didn't really know what I was looking for.
It does make me wonder though, is it definitely in relation to BC alone, or is it preparatory work for PS5 software working across multiple targets? As I see it, that's Microsoft's biggest advantage over Sony at the moment, and I reckon Sony would like to match them to maintain hardware flexibility next generation.
Or maybe Sony are just planning PS4 revisions using Zen in place of Jaguar. I turned FFXV to high framerate mode on my Pro, and it started wailing. It doesn't do that on the other modes or games, so I can only assume that the CPU is the culprit. 2.1GHz would be child's play for Zen, especially at 7nm.
So if you're in Sony's position, you can either invest significant sums of money into a 7nm Jaguar shrink, or you can invest in ensuring Jaguar code runs on Zen. The return on the former ends with this generation, whereas the return on the latter continues into the next generation.