mirror of https://github.com/zcash/halo2.git
96863c9f73
The mul_fixed regions use complete addition on the last window, and incomplete addition on all other windows. However, the complete addition does not depend on any offsets in the incomplete addition region, and can be separated into a disjoint region. Since incomplete addition uses only four advice columns, while complete addition uses nine, separating the regions would allow the layouter to optimise their placement. Co-authored-by: Jack Grigg <jack@electriccoin.co> |
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