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      1 // Copyright 2010 The Go Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style
      3 // license that can be found in the LICENSE file.
      4 
      5 // +build !math_big_pure_go
      6 
      7 package big
      8 
      9 // implemented in arith_$GOARCH.s
     10 func mulWW(x, y Word) (z1, z0 Word)
     11 func divWW(x1, x0, y Word) (q, r Word)
     12 func addVV(z, x, y []Word) (c Word)
     13 func subVV(z, x, y []Word) (c Word)
     14 func addVW(z, x []Word, y Word) (c Word)
     15 func subVW(z, x []Word, y Word) (c Word)
     16 func shlVU(z, x []Word, s uint) (c Word)
     17 func shrVU(z, x []Word, s uint) (c Word)
     18 func mulAddVWW(z, x []Word, y, r Word) (c Word)
     19 func addMulVVW(z, x []Word, y Word) (c Word)
     20 func divWVW(z []Word, xn Word, x []Word, y Word) (r Word)
     21