RFR: 8346661: Add a register print helper method and unify register printing

[Matthias Baesken]

On Mon, 30 Dec 2024 10:08:35 GMT, Martin Doerr <mdoerr at openjdk.org> wrote:

> I prefer the more compact format with several registers per line.

On e.g. linuxaarch64 we already have the one register per line output, was that somehow problematic for you in the past ?
It is just a unification (but of course it can be argued that one output is a little better readable than the other).

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PR Comment: https://git.openjdk.org/jdk/pull/22894#issuecomment-2565335308