Re: [PATCH (skiboot)] dt: add /cpus/ibm, powerpc-cpu-features device tree bindings

On Mon, Feb 05, 2018 at 11:26:15AM +1000, Nicholas Piggin wrote:

On Sat, 3 Feb 2018 09:36:20 -0600

quoted

On Sat, Feb 03, 2018 at 02:27:32PM +1000, Nicholas Piggin wrote:

quoted

+	/*
+	 * ISAv3.0B branch instruction and register additions
+	 * CA32, OV32, mcrxrx, setb
+	 */
+	{ "branch-v3",  

Those aren't branch instructions, they are integer instructions.  Some
of which use the XER, some of which use CR fields.

Okay, well the register changes are for branch facility registers, I
guess instructions could move to integer. We have nothing relying on
exact definition of these things at the moment, so these we can change.

XER is a fixed-point facility register (that's what the "X" means even!)

Thanks,


Segher