How to move yanked text into particular register in vim?

Question

When editing in vim, often enough I find myself stopping when I'm going to delete text and I notice that previously yanked text would become handy for next operations.

So - how to move already yanked text into particular register (e.g. under a)?

Answer 1

To move register 0 to register a:

:let @a=@0

Answer 2

You can use something like:

noremap <leader>ma :let @a=@<CR>

Now, when you press \ma in normal mode, your last yanked text will go to register 'a'.
Note : Assuming leader is '\'