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Mike Hamburg authored
a 32-bit arch on a 64-bit platform, eg NEON on AARCH64. It's probably more useful for cross-platform testing, though. The breakdown is as follows: * decaf_bool_t, decaf_word_t and decaf_error_t are as defined in the API. * DECAF_WORD_BITS is the size of a decaf_word_t. * decaf_word_t is used for scalars, so on every curve the scalar impls are the same (i.e. they follow the API's word size). * SC_LIMB macro always takes a 64-bit word. * non-prefixed word_t, mask_t, etc are as defined by the per-curve arch. * ARCH_WORD_BITS is the size of a word_t. * word_t is used for gf elements, so the curves may have different guts.
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