Aurelien Jarno wrote: [snip] > >> - 64-bit is implemented, the PX bit should be writable. > > > > The current version is correct, R4000 and 5K don't implement PX, the > > 20Kc and later CPUs do. > > I don't know about R4000, but the 5K manual (from www.mips.com) clearly > says that this bit is implemented. Also this bit is marked as "required" > in the MIPS64 PRA manual (for both R1 and R2), and the 5K CPU is > presented as a MIPS64R1 CPU.
Agreed for the 5K, I used too old Documentation to check this. Thiemo
