// Copyright 2009 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.

// SHA512 block step.
// In its own file so that a faster assembly or C version
// can be substituted easily.

package sha512

import 

var _K = []uint64{
	0x428a2f98d728ae22,
	0x7137449123ef65cd,
	0xb5c0fbcfec4d3b2f,
	0xe9b5dba58189dbbc,
	0x3956c25bf348b538,
	0x59f111f1b605d019,
	0x923f82a4af194f9b,
	0xab1c5ed5da6d8118,
	0xd807aa98a3030242,
	0x12835b0145706fbe,
	0x243185be4ee4b28c,
	0x550c7dc3d5ffb4e2,
	0x72be5d74f27b896f,
	0x80deb1fe3b1696b1,
	0x9bdc06a725c71235,
	0xc19bf174cf692694,
	0xe49b69c19ef14ad2,
	0xefbe4786384f25e3,
	0x0fc19dc68b8cd5b5,
	0x240ca1cc77ac9c65,
	0x2de92c6f592b0275,
	0x4a7484aa6ea6e483,
	0x5cb0a9dcbd41fbd4,
	0x76f988da831153b5,
	0x983e5152ee66dfab,
	0xa831c66d2db43210,
	0xb00327c898fb213f,
	0xbf597fc7beef0ee4,
	0xc6e00bf33da88fc2,
	0xd5a79147930aa725,
	0x06ca6351e003826f,
	0x142929670a0e6e70,
	0x27b70a8546d22ffc,
	0x2e1b21385c26c926,
	0x4d2c6dfc5ac42aed,
	0x53380d139d95b3df,
	0x650a73548baf63de,
	0x766a0abb3c77b2a8,
	0x81c2c92e47edaee6,
	0x92722c851482353b,
	0xa2bfe8a14cf10364,
	0xa81a664bbc423001,
	0xc24b8b70d0f89791,
	0xc76c51a30654be30,
	0xd192e819d6ef5218,
	0xd69906245565a910,
	0xf40e35855771202a,
	0x106aa07032bbd1b8,
	0x19a4c116b8d2d0c8,
	0x1e376c085141ab53,
	0x2748774cdf8eeb99,
	0x34b0bcb5e19b48a8,
	0x391c0cb3c5c95a63,
	0x4ed8aa4ae3418acb,
	0x5b9cca4f7763e373,
	0x682e6ff3d6b2b8a3,
	0x748f82ee5defb2fc,
	0x78a5636f43172f60,
	0x84c87814a1f0ab72,
	0x8cc702081a6439ec,
	0x90befffa23631e28,
	0xa4506cebde82bde9,
	0xbef9a3f7b2c67915,
	0xc67178f2e372532b,
	0xca273eceea26619c,
	0xd186b8c721c0c207,
	0xeada7dd6cde0eb1e,
	0xf57d4f7fee6ed178,
	0x06f067aa72176fba,
	0x0a637dc5a2c898a6,
	0x113f9804bef90dae,
	0x1b710b35131c471b,
	0x28db77f523047d84,
	0x32caab7b40c72493,
	0x3c9ebe0a15c9bebc,
	0x431d67c49c100d4c,
	0x4cc5d4becb3e42b6,
	0x597f299cfc657e2a,
	0x5fcb6fab3ad6faec,
	0x6c44198c4a475817,
}

func blockGeneric( *digest,  []byte) {
	var  [80]uint64
	, , , , , , ,  := .h[0], .h[1], .h[2], .h[3], .h[4], .h[5], .h[6], .h[7]
	for len() >= chunk {
		for  := 0;  < 16; ++ {
			 :=  * 8
			[] = uint64([])<<56 | uint64([+1])<<48 | uint64([+2])<<40 | uint64([+3])<<32 |
				uint64([+4])<<24 | uint64([+5])<<16 | uint64([+6])<<8 | uint64([+7])
		}
		for  := 16;  < 80; ++ {
			 := [-2]
			 := bits.RotateLeft64(, -19) ^ bits.RotateLeft64(, -61) ^ ( >> 6)
			 := [-15]
			 := bits.RotateLeft64(, -1) ^ bits.RotateLeft64(, -8) ^ ( >> 7)

			[] =  + [-7] +  + [-16]
		}

		, , , , , , ,  := , , , , , , , 

		for  := 0;  < 80; ++ {
			 :=  + (bits.RotateLeft64(, -14) ^ bits.RotateLeft64(, -18) ^ bits.RotateLeft64(, -41)) + (( & ) ^ (^ & )) + _K[] + []

			 := (bits.RotateLeft64(, -28) ^ bits.RotateLeft64(, -34) ^ bits.RotateLeft64(, -39)) + (( & ) ^ ( & ) ^ ( & ))

			 = 
			 = 
			 = 
			 =  + 
			 = 
			 = 
			 = 
			 =  + 
		}

		 += 
		 += 
		 += 
		 += 
		 += 
		 += 
		 += 
		 += 

		 = [chunk:]
	}

	.h[0], .h[1], .h[2], .h[3], .h[4], .h[5], .h[6], .h[7] = , , , , , , , 
}