It's the 11th bit, counting from the MSB, on the top 16 bits.
e57c83d U-Boot: PPC: make the shift calculation more obvious
.../boot/platform/u-boot/arch/ppc/arch_cpu.cpp | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
Upstream: cgit.haiku-os.org