This patch is an example of the code which will be generated from a machine readable specification (MRS) to decode and encode AArch64 instructions from v8.1 onwards.
It is provided for review and discussion purposes, in order to resolve any issues which may arise and to make visible what changes to expect.
This patch does not include the MRS, the parser or generator, just an example of the target code which we intend to generate, based on the v8.1 SQRDMLAH instruction.