> I had recently had tore down my broken PSVR which has the very nicely stamped ARM M1 in it. I don't think that's correct. The Cortex-M1 is an soft-core-only

> I had recently had tore down my broken PSVR which has the very nicely stamped ARM M1 in it. I don't think that's correct. The Cortex-M1 is an soft-core-only design; there's no hardware implementation. (And moreover, the ARM cores used aren't usually part of the external markings on a chip.) What chip were you looking at? I don't see anything which looks like that in the iFixit teardown: https://www.ifixit.com/Teardown/PlayStation+VR+Teardown/69341 https://www.ifixit.com/Teardown/PlayStation+VR+Teardown/6934...