50 lines
1.1 KiB
Go
50 lines
1.1 KiB
Go
// Copyright 2020-2025 Consensys Software Inc.
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// Licensed under the Apache License, Version 2.0. See the LICENSE file for details.
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// Code generated by consensys/gnark-crypto DO NOT EDIT
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package fr
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import (
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"math/bits"
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)
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// madd0 hi = a*b + c (discards lo bits)
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func madd0(a, b, c uint64) (hi uint64) {
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var carry, lo uint64
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hi, lo = bits.Mul64(a, b)
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_, carry = bits.Add64(lo, c, 0)
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hi, _ = bits.Add64(hi, 0, carry)
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return
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}
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// madd1 hi, lo = a*b + c
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func madd1(a, b, c uint64) (hi uint64, lo uint64) {
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var carry uint64
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hi, lo = bits.Mul64(a, b)
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lo, carry = bits.Add64(lo, c, 0)
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hi, _ = bits.Add64(hi, 0, carry)
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return
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}
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// madd2 hi, lo = a*b + c + d
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func madd2(a, b, c, d uint64) (hi uint64, lo uint64) {
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var carry uint64
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hi, lo = bits.Mul64(a, b)
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c, carry = bits.Add64(c, d, 0)
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hi, _ = bits.Add64(hi, 0, carry)
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lo, carry = bits.Add64(lo, c, 0)
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hi, _ = bits.Add64(hi, 0, carry)
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return
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}
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func madd3(a, b, c, d, e uint64) (hi uint64, lo uint64) {
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var carry uint64
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hi, lo = bits.Mul64(a, b)
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c, carry = bits.Add64(c, d, 0)
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hi, _ = bits.Add64(hi, 0, carry)
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lo, carry = bits.Add64(lo, c, 0)
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hi, _ = bits.Add64(hi, e, carry)
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return
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}
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