|  | // Copyright 2010 The Go Authors. All rights reserved. | 
|  | // Use of this source code is governed by a BSD-style | 
|  | // license that can be found in the LICENSE file. | 
|  |  | 
|  | // +build !math_big_pure_go | 
|  |  | 
|  | package big | 
|  |  | 
|  | // implemented in arith_$GOARCH.s | 
|  | func mulWW(x, y Word) (z1, z0 Word) | 
|  | func divWW(x1, x0, y Word) (q, r Word) | 
|  | func addVV(z, x, y []Word) (c Word) | 
|  | func subVV(z, x, y []Word) (c Word) | 
|  | func addVW(z, x []Word, y Word) (c Word) | 
|  | func subVW(z, x []Word, y Word) (c Word) | 
|  | func shlVU(z, x []Word, s uint) (c Word) | 
|  | func shrVU(z, x []Word, s uint) (c Word) | 
|  | func mulAddVWW(z, x []Word, y, r Word) (c Word) | 
|  | func addMulVVW(z, x []Word, y Word) (c Word) | 
|  | func divWVW(z []Word, xn Word, x []Word, y Word) (r Word) |