[PATCH v3 2/4] powerpc/sstep: support emulation for vsx vector paired storage access instructions

[Naveen N. Rao]

Balamuruhan S wrote:
> add emulate_step() changes to support vsx vector paired storage
> access instructions that provides octword operands loads/stores
> between storage and set of 64 Vector Scalar Registers (VSRs).

This should be squashed in with the previous patch. Otherwise, emulation 
of these instructions won't be complete, which affects bisectability.

- Naveen