On 1 December 2016 at 11:28, Andre Przywara <andre.przyw...@arm.com> wrote:
> I don't think so. At least here as a _variable_ type uint32_t is
> probably the right one, as the ARMv8 ARM explicitly says that PMCR is a
> 32-bit register, for both bitnesses.

For 64-bit ARM this is strictly speaking just shorthand for "64-bit
register with the top 32-bit being RES0". It is in theory possible that
a future architecture extension might define uses for those RES0

-- PMM
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