Awesome
json-x86-64
x86-64 Intel instruction set (up to AVX-512) in JSON format
Documentation
See https://opcodes.readthedocs.io/opcodes.html#module-opcodes.x86_64 for field specifications.
Source
https://github.com/Maratyszcza/Opcodes/blob/master/opcodes/x86.xml is the source document for the JSON format and is licensed under the BSD 2-clause "Simplified" License. Please see LICENSE for details.