gno.land/p/gnoswap/uint256/v1

Package

Overview

Kind: Pure package
Name: v1
Namespace: gnoswap / uint256
Files: 10 (README)(gnomod.toml)
Exported functions: n/a — not supported for pure packages by the node (vm/qfuncs)
Module: gno.land/p/gnoswap/uint256/v1
gno: 0.9

mod.gnogno

1package uint25623import (4	"math/bits"5)67// Reciprocal computes the 320-bit reciprocal estimate used by Barrett reduction.8

not supported for pure packages by the node (vm/qfuncs)

Signatures reconstructed verbatim from vm/qfuncs — interface params keep their inline definitions.

9// The implementation is specialized for a four-word modulus with m[3] non-zero

10// (2^192 <= m < 2^256). For a modulus whose most-significant word is zero it

14// - m: Four-word unsigned modulus; its most-significant word selects the supported range.

17// - mu: Five little-endian uint64 words containing the reciprocal estimate for m.

23 s := bits.LeadingZeros64(m[3]) // Replace with leadingZeros(m) for general case

378 // commit the decrement if the subtraction underflowed (reciprocal was too large)