[libre-riscv-dev] uniform instruction format
Jacob Lifshay
programmerjake at gmail.com
Sun Jun 16 22:03:12 BST 2019
On Sun, Jun 16, 2019, 11:17 Luke Kenneth Casson Leighton <lkcl at lkcl.net>
wrote:
> thus, the gather/scatter "lsk" can be removed, as it is covered by
> twin-predication, and an extra instruction to provide gather/scatter
> is NOT required.
>
as covered in
http://lists.libre-riscv.org/pipermail/libre-riscv-dev/2019-February/000599.html
even if we have twin predication (which I'm not against adding),
gather/scatter is strictly more powerful and is especially necessary for
memory operations.
>
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