tree 9b47f3794b083cb90715d1ab29d244be4c8df783
parent 61cdb4545b7de576d8ba18e746033d2c89e4f6c7
author Boyan Karatotev <boyan.karatotev@arm.com> 1738752500 +0000
committer Boyan Karatotev <boyan.karatotev@arm.com> 1745826090 +0100

feat(lib): add a generic EXTRACT macro

The EXTRACT macro is useful to extract a named field from a numeric
value, usually a register. It is functionally identical to the `ubfx`
instruction and uses the same #defines (REG_FIELD_SHIFT and
REG_FIELD_WIDTH).

This is the same macro that we use in tftf. It works well there and is
quite useful for manipulating register fields concisely.

This macro replaces the EXTRACT_FIELD macro. Their function is
identical, however, EXTRACT allows for easier interoperation with the
`ubfx` instruction, makes code more similar to tftf, and is more
concise.

Change-Id: Ic454a87af5e5fac108c7b7cb6b6804ec65a8d0e8
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>