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Use 16bits arithmetic for F_4 #265

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vrancurel opened this issue Nov 2, 2018 · 3 comments

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vrancurel commented Nov 2, 2018

Instead of using 32bits arithmetic we can use 16 bits arithmetic.

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vrancurel commented Nov 2, 2018 •

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Here is a simulation: https://github.com/vrancurel/f4mul

vrancurel assigned lamphamsy

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vrancurel commented Nov 2, 2018

Lâm, can you give it a try ?

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vrancurel commented Nov 2, 2018 •

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We can probably further optimize the loop we do to adjust with SIMD operations themselves, e.g. with cmpeq_epu16(), etc

Bitfields operation are in fact unlikely so we can process them only if the bitmap != 0.

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