scarv / xcrypto

XCrypto: a cryptographic ISE for RISC-V
MIT License
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Pack width use cases #75

Open ben-marshall opened 5 years ago

ben-marshall commented 5 years ago

We don't currently have use cases for some combinations of pack widths and instructions. Given the implementation overhead (in terms of complexity and resources) that these generate, it might be worth reviewing which ones we include and which we could discard.

Instruction pw=16 pw=8 pw=4 pw=2
padd sparx
psub sparx
pmul frodo
pclmul
psll[i]
psrl[i]
prorl[i] sparx