15 Jan
2024
15 Jan
'24
8:43 p.m.
Niels Möller nisse@lysator.liu.se writes:
For next step, I'm considering the refactoring of ghash to use the new macros.
I actually started with the macros relevant for the AES code. And it turned out to be rather easy to do the m4 loops to operate on an arbitrary list of registers. See branch ppc-aes-macros, in particular, https://gitlab.com/gnutls/nettle/-/blob/ppc-aes-macros/powerpc64/machine.m4?...
I'm not entirely happy with the naming (OP_YXX, OP_YXXX), which is on one hand intended to correspond to the instruction pattern the macro expands to, and at the same time correspond to the expected order of arguments, which really doesn't work that well. Suggestion welcome.
Regards, /Niels
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