Martin Ling 9d570cb558 Add macro versions of key parts of M0 code.
This commit is separate from the following one which uses the macros, in
order to make the diffs easier to read.
2022-02-13 16:46:12 +00:00
..
2020-01-22 21:23:30 +00:00
2020-01-22 21:23:30 +00:00