keccak/keccak_gen.go

// Generated from go run gen.go
// DO NOT EDIT

package keccak

// round implements one round of the keccak-f[1600] permutation.
func roundGo(a *[25]uint64) {

	var b00, b01, b02, b03, b04 uint64

	var b10, b11, b12, b13, b14 uint64

	var b20, b21, b22, b23, b24 uint64

	var b30, b31, b32, b33, b34 uint64

	var b40, b41, b42, b43, b44 uint64

	// Theta
	var c0, c1, c2, c3, c4 uint64

	c0 = a[0]

	c1 = a[1]

	c2 = a[2]

	c3 = a[3]

	c4 = a[4]

	c0 ^= a[5]

	c1 ^= a[6]

	c2 ^= a[7]

	c3 ^= a[8]

	c4 ^= a[9]

	c0 ^= a[10]

	c1 ^= a[11]

	c2 ^= a[12]

	c3 ^= a[13]

	c4 ^= a[14]

	c0 ^= a[15]

	c1 ^= a[16]

	c2 ^= a[17]

	c3 ^= a[18]

	c4 ^= a[19]

	c0 ^= a[20]

	c1 ^= a[21]

	c2 ^= a[22]

	c3 ^= a[23]

	c4 ^= a[24]

	var d uint64

	d = c4 ^ (c1<<1 | c1>>63)

	b00 = a[0] ^ d

	b01 = a[5] ^ d

	b02 = a[10] ^ d

	b03 = a[15] ^ d

	b04 = a[20] ^ d

	d = c0 ^ (c2<<1 | c2>>63)

	b10 = a[1] ^ d

	b11 = a[6] ^ d

	b12 = a[11] ^ d

	b13 = a[16] ^ d

	b14 = a[21] ^ d

	d = c1 ^ (c3<<1 | c3>>63)

	b20 = a[2] ^ d

	b21 = a[7] ^ d

	b22 = a[12] ^ d

	b23 = a[17] ^ d

	b24 = a[22] ^ d

	d = c2 ^ (c4<<1 | c4>>63)

	b30 = a[3] ^ d

	b31 = a[8] ^ d

	b32 = a[13] ^ d

	b33 = a[18] ^ d

	b34 = a[23] ^ d

	d = c3 ^ (c0<<1 | c0>>63)

	b40 = a[4] ^ d

	b41 = a[9] ^ d

	b42 = a[14] ^ d

	b43 = a[19] ^ d

	b44 = a[24] ^ d

	// Rho

	b00 = b00<<0 | b00>>64

	b10 = b10<<1 | b10>>63

	b20 = b20<<62 | b20>>2

	b30 = b30<<28 | b30>>36

	b40 = b40<<27 | b40>>37

	b01 = b01<<36 | b01>>28

	b11 = b11<<44 | b11>>20

	b21 = b21<<6 | b21>>58

	b31 = b31<<55 | b31>>9

	b41 = b41<<20 | b41>>44

	b02 = b02<<3 | b02>>61

	b12 = b12<<10 | b12>>54

	b22 = b22<<43 | b22>>21

	b32 = b32<<25 | b32>>39

	b42 = b42<<39 | b42>>25

	b03 = b03<<41 | b03>>23

	b13 = b13<<45 | b13>>19

	b23 = b23<<15 | b23>>49

	b33 = b33<<21 | b33>>43

	b43 = b43<<8 | b43>>56

	b04 = b04<<18 | b04>>46

	b14 = b14<<2 | b14>>62

	b24 = b24<<61 | b24>>3

	b34 = b34<<56 | b34>>8

	b44 = b44<<14 | b44>>50

	// Pi / Chi / output

	a[0] = b00 ^ (b22 &^ b11)

	a[1] = b11 ^ (b33 &^ b22)

	a[2] = b22 ^ (b44 &^ b33)

	a[3] = b33 ^ (b00 &^ b44)

	a[4] = b44 ^ (b11 &^ b00)

	a[5] = b30 ^ (b02 &^ b41)

	a[6] = b41 ^ (b13 &^ b02)

	a[7] = b02 ^ (b24 &^ b13)

	a[8] = b13 ^ (b30 &^ b24)

	a[9] = b24 ^ (b41 &^ b30)

	a[10] = b10 ^ (b32 &^ b21)

	a[11] = b21 ^ (b43 &^ b32)

	a[12] = b32 ^ (b04 &^ b43)

	a[13] = b43 ^ (b10 &^ b04)

	a[14] = b04 ^ (b21 &^ b10)

	a[15] = b40 ^ (b12 &^ b01)

	a[16] = b01 ^ (b23 &^ b12)

	a[17] = b12 ^ (b34 &^ b23)

	a[18] = b23 ^ (b40 &^ b34)

	a[19] = b34 ^ (b01 &^ b40)

	a[20] = b20 ^ (b42 &^ b31)

	a[21] = b31 ^ (b03 &^ b42)

	a[22] = b42 ^ (b14 &^ b03)

	a[23] = b03 ^ (b20 &^ b14)

	a[24] = b14 ^ (b31 &^ b20)

}