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def kr42

mylsm-lsm-store@0.6.0.1 · src/hub_sha/core.bend:500

import mylsm-lsm-store@0.6.0.1/src/hub_sha/core.bend as Core
import Base
import mylsm-lsm-store@0.6.0.1/src/hub_sha/state.bend as S

500# Return the SHA-256 round constant for schedule index 42.
501def kr42(rounds_left: Nat, win: ShaWindow, state: S.State) -> S.State:
502  match rounds_left win:
503    case 0n _:
504      state
505    case 1n+z W{a, +b, c, d, e, f, +g, h, i, j, l, m, o, r, +t, +u}:
506      +w = (small1(b) + g + small0(t) + u : U32)
507      kr43(z, W{w, a, b, c, d, e, f, g, h, i, j, l, m, o, r, t}, step(state, 3259730800, w))

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Used by (1)