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equihash/blake2-avx2/blake2bip.c

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#include <stddef.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include "blake2.h"
#include "blake2b-common.h"
#include "blake2bip.h"
#ifdef __APPLE__
#include <machine/endian.h>
#include <libkern/OSByteOrder.h>
#define htole32(x) OSSwapHostToLittleInt32(x)
#endif
ALIGN(64) static const uint64_t blake2b_IV[8] = {
UINT64_C(0x6A09E667F3BCC908), UINT64_C(0xBB67AE8584CAA73B),
UINT64_C(0x3C6EF372FE94F82B), UINT64_C(0xA54FF53A5F1D36F1),
UINT64_C(0x510E527FADE682D1), UINT64_C(0x9B05688C2B3E6C1F),
UINT64_C(0x1F83D9ABFB41BD6B), UINT64_C(0x5BE0CD19137E2179),
};
ALIGN(64) static const uint32_t blake2b_sigma[12][16] = {
{ 0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448, 480},
{448, 320, 128, 256, 288, 480, 416, 192, 32, 384, 0, 64, 352, 224, 160, 96},
{352, 256, 384, 0, 160, 64, 480, 416, 320, 448, 96, 192, 224, 32, 288, 128},
{224, 288, 96, 32, 416, 384, 352, 448, 64, 192, 160, 320, 128, 0, 480, 256},
{288, 0, 160, 224, 64, 128, 320, 480, 448, 32, 352, 384, 192, 256, 96, 416},
{ 64, 384, 192, 320, 0, 352, 256, 96, 128, 416, 224, 160, 480, 448, 32, 288},
{384, 160, 32, 480, 448, 416, 128, 320, 0, 224, 192, 96, 288, 64, 256, 352},
{416, 352, 224, 448, 384, 32, 96, 288, 160, 0, 480, 128, 256, 192, 64, 320},
{192, 480, 448, 288, 352, 96, 0, 256, 384, 64, 416, 224, 32, 128, 320, 160},
{320, 64, 256, 128, 224, 192, 32, 160, 480, 352, 288, 448, 96, 384, 416, 0},
{ 0, 32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448, 480},
{448, 320, 128, 256, 288, 480, 416, 192, 32, 384, 0, 64, 352, 224, 160, 96},
};
#define BLAKE2B_G1_V1(a, b, c, d, m) do { \
a = ADD(a, m); \
a = ADD(a, b); d = XOR(d, a); d = ROT32(d); \
c = ADD(c, d); b = XOR(b, c); b = ROT24(b); \
} while(0)
#define BLAKE2B_G2_V1(a, b, c, d, m) do { \
a = ADD(a, m); \
a = ADD(a, b); d = XOR(d, a); d = ROT16(d); \
c = ADD(c, d); b = XOR(b, c); b = ROT63(b); \
} while(0)
#define BLAKE2B_DIAG_V1(a, b, c, d) do { \
d = _mm256_permute4x64_epi64(d, _MM_SHUFFLE(2,1,0,3)); \
c = _mm256_permute4x64_epi64(c, _MM_SHUFFLE(1,0,3,2)); \
b = _mm256_permute4x64_epi64(b, _MM_SHUFFLE(0,3,2,1)); \
} while(0)
#define BLAKE2B_UNDIAG_V1(a, b, c, d) do { \
d = _mm256_permute4x64_epi64(d, _MM_SHUFFLE(0,3,2,1)); \
c = _mm256_permute4x64_epi64(c, _MM_SHUFFLE(1,0,3,2)); \
b = _mm256_permute4x64_epi64(b, _MM_SHUFFLE(2,1,0,3)); \
} while(0)
#if defined(PERMUTE_WITH_SHUFFLES)
#include "blake2b-load-avx2.h"
#elif defined(PERMUTE_WITH_GATHER)
#else
#include "blake2b-load-avx2-simple.h"
#endif
#if defined(PERMUTE_WITH_GATHER)
ALIGN(64) static const uint32_t indices[12][16] = {
{ 0, 2, 4, 6, 1, 3, 5, 7, 8, 10, 12, 14, 9, 11, 13, 15},
{14, 4, 9, 13,10, 8, 15, 6, 1, 0, 11, 5,12, 2, 7, 3},
{11, 12, 5, 15, 8, 0, 2, 13,10, 3, 7, 9,14, 6, 1, 4},
{ 7, 3, 13, 11, 9, 1, 12, 14, 2, 5, 4, 15, 6, 10, 0, 8},
{ 9, 5, 2, 10, 0, 7, 4, 15,14, 11, 6, 3, 1, 12, 8, 13},
{ 2, 6, 0, 8,12, 10, 11, 3, 4, 7, 15, 1,13, 5, 14, 9},
{12, 1, 14, 4, 5, 15, 13, 10, 0, 6, 9, 8, 7, 3, 2, 11},
{13, 7, 12, 3,11, 14, 1, 9, 5, 15, 8, 2, 0, 4, 6, 10},
{ 6, 14, 11, 0,15, 9, 3, 8,12, 13, 1, 10, 2, 7, 4, 5},
{10, 8, 7, 1, 2, 4, 6, 5,15, 9, 3, 13,11, 14, 12, 0},
{ 0, 2, 4, 6, 1, 3, 5, 7, 8, 10, 12, 14, 9, 11, 13, 15},
{14, 4, 9, 13,10, 8, 15, 6, 1, 0, 11, 5,12, 2, 7, 3},
};
#define BLAKE2B_ROUND_V1(a, b, c, d, r, m) do { \
__m256i b0; \
b0 = _mm256_i32gather_epi64((void *)(m), LOAD128(&indices[r][ 0]), 8); \
BLAKE2B_G1_V1(a, b, c, d, b0); \
b0 = _mm256_i32gather_epi64((void *)(m), LOAD128(&indices[r][ 4]), 8); \
BLAKE2B_G2_V1(a, b, c, d, b0); \
BLAKE2B_DIAG_V1(a, b, c, d); \
b0 = _mm256_i32gather_epi64((void *)(m), LOAD128(&indices[r][ 8]), 8); \
BLAKE2B_G1_V1(a, b, c, d, b0); \
b0 = _mm256_i32gather_epi64((void *)(m), LOAD128(&indices[r][12]), 8); \
BLAKE2B_G2_V1(a, b, c, d, b0); \
BLAKE2B_UNDIAG_V1(a, b, c, d); \
} while(0)
#define BLAKE2B_ROUNDS_V1(a, b, c, d, m) do { \
int i; \
for(i = 0; i < 12; ++i) { \
BLAKE2B_ROUND_V1(a, b, c, d, i, m); \
} \
} while(0)
#else /* !PERMUTE_WITH_GATHER */
#define BLAKE2B_ROUND_V1(a, b, c, d, r, m) do { \
__m256i b0; \
BLAKE2B_LOAD_MSG_ ##r ##_1(b0); \
BLAKE2B_G1_V1(a, b, c, d, b0); \
BLAKE2B_LOAD_MSG_ ##r ##_2(b0); \
BLAKE2B_G2_V1(a, b, c, d, b0); \
BLAKE2B_DIAG_V1(a, b, c, d); \
BLAKE2B_LOAD_MSG_ ##r ##_3(b0); \
BLAKE2B_G1_V1(a, b, c, d, b0); \
BLAKE2B_LOAD_MSG_ ##r ##_4(b0); \
BLAKE2B_G2_V1(a, b, c, d, b0); \
BLAKE2B_UNDIAG_V1(a, b, c, d); \
} while(0)
#define BLAKE2B_ROUNDS_V1(a, b, c, d, m) do { \
BLAKE2B_ROUND_V1(a, b, c, d, 0, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 1, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 2, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 3, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 4, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 5, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 6, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 7, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 8, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 9, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 10, (m)); \
BLAKE2B_ROUND_V1(a, b, c, d, 11, (m)); \
} while(0)
#endif
#if defined(PERMUTE_WITH_GATHER)
#define DECLARE_MESSAGE_WORDS(m)
#elif defined(PERMUTE_WITH_SHUFFLES)
#define DECLARE_MESSAGE_WORDS(m) \
const __m256i m0 = _mm256_broadcastsi128_si256(LOADU128((m) + 0)); \
const __m256i m1 = _mm256_broadcastsi128_si256(LOADU128((m) + 16)); \
const __m256i m2 = _mm256_broadcastsi128_si256(LOADU128((m) + 32)); \
const __m256i m3 = _mm256_broadcastsi128_si256(LOADU128((m) + 48)); \
const __m256i m4 = _mm256_broadcastsi128_si256(LOADU128((m) + 64)); \
const __m256i m5 = _mm256_broadcastsi128_si256(LOADU128((m) + 80)); \
const __m256i m6 = _mm256_broadcastsi128_si256(LOADU128((m) + 96)); \
const __m256i m7 = _mm256_broadcastsi128_si256(LOADU128((m) + 112)); \
__m256i t0, t1;
#else
#define DECLARE_MESSAGE_WORDS(m) \
const uint64_t m0 = LOADU64((m) + 0); \
const uint64_t m1 = LOADU64((m) + 8); \
const uint64_t m2 = LOADU64((m) + 16); \
const uint64_t m3 = LOADU64((m) + 24); \
const uint64_t m4 = LOADU64((m) + 32); \
const uint64_t m5 = LOADU64((m) + 40); \
const uint64_t m6 = LOADU64((m) + 48); \
const uint64_t m7 = LOADU64((m) + 56); \
const uint64_t m8 = LOADU64((m) + 64); \
const uint64_t m9 = LOADU64((m) + 72); \
const uint64_t m10 = LOADU64((m) + 80); \
const uint64_t m11 = LOADU64((m) + 88); \
const uint64_t m12 = LOADU64((m) + 96); \
const uint64_t m13 = LOADU64((m) + 104); \
const uint64_t m14 = LOADU64((m) + 112); \
const uint64_t m15 = LOADU64((m) + 120);
#endif
#define BLAKE2B_COMPRESS_V1(a, b, m, t0, t1, f0, f1) do { \
DECLARE_MESSAGE_WORDS(m) \
const __m256i iv0 = a; \
const __m256i iv1 = b; \
__m256i c = LOAD(&blake2b_IV[0]); \
__m256i d = XOR( \
LOAD(&blake2b_IV[4]), \
_mm256_set_epi64x(f1, f0, t1, t0) \
); \
BLAKE2B_ROUNDS_V1(a, b, c, d, m); \
a = XOR(a, c); \
b = XOR(b, d); \
a = XOR(a, iv0); \
b = XOR(b, iv1); \
} while(0)
#define BLAKE2B_G_V4(m, r, i, a, b, c, d) do { \
a = ADD(a, LOAD((uint8_t const *)(m) + blake2b_sigma[r][2*i+0])); \
a = ADD(a, b); d = XOR(d, a); d = ROT32(d); \
c = ADD(c, d); b = XOR(b, c); b = ROT24(b); \
a = ADD(a, LOAD((uint8_t const *)(m) + blake2b_sigma[r][2*i+1])); \
a = ADD(a, b); d = XOR(d, a); d = ROT16(d); \
c = ADD(c, d); b = XOR(b, c); b = ROT63(b); \
} while(0)
#define BLAKE2B_ROUND_V4(v, m, r) do { \
BLAKE2B_G_V4(m, r, 0, v[ 0], v[ 4], v[ 8], v[12]); \
BLAKE2B_G_V4(m, r, 1, v[ 1], v[ 5], v[ 9], v[13]); \
BLAKE2B_G_V4(m, r, 2, v[ 2], v[ 6], v[10], v[14]); \
BLAKE2B_G_V4(m, r, 3, v[ 3], v[ 7], v[11], v[15]); \
BLAKE2B_G_V4(m, r, 4, v[ 0], v[ 5], v[10], v[15]); \
BLAKE2B_G_V4(m, r, 5, v[ 1], v[ 6], v[11], v[12]); \
BLAKE2B_G_V4(m, r, 6, v[ 2], v[ 7], v[ 8], v[13]); \
BLAKE2B_G_V4(m, r, 7, v[ 3], v[ 4], v[ 9], v[14]); \
} while(0)
#define BLAKE2B_G_V8(m, r, i, a, b, c, d, e, f, g, h) do { \
a = ADD(a, LOAD((uint8_t const *)(m ) + blake2b_sigma[r][2*i+0])); \
e = ADD(e, LOAD((uint8_t const *)(m+16) + blake2b_sigma[r][2*i+0])); \
a = ADD(a, b); e = ADD(e, f); d = XOR(d, a); h = XOR(h, e); d = ROT32(d); h = ROT32(h); \
c = ADD(c, d); g = ADD(g, h); b = XOR(b, c); f = XOR(f, g); b = ROT24(b); f = ROT24(f); \
a = ADD(a, LOAD((uint8_t const *)(m ) + blake2b_sigma[r][2*i+1])); \
e = ADD(e, LOAD((uint8_t const *)(m+16) + blake2b_sigma[r][2*i+1])); \
a = ADD(a, b); e = ADD(e, f); d = XOR(d, a); h = XOR(h, e); d = ROT16(d); h = ROT16(h); \
c = ADD(c, d); g = ADD(g, h); b = XOR(b, c); f = XOR(f, g); b = ROT63(b); f = ROT63(f); \
} while(0)
#define BLAKE2B_ROUND_V8(v, m, r) do { \
BLAKE2B_G_V8(m, r, 0, v[ 0], v[ 4], v[ 8], v[12], v[16], v[20], v[24], v[28]); \
BLAKE2B_G_V8(m, r, 1, v[ 1], v[ 5], v[ 9], v[13], v[17], v[21], v[25], v[29]); \
BLAKE2B_G_V8(m, r, 2, v[ 2], v[ 6], v[10], v[14], v[18], v[22], v[26], v[30]); \
BLAKE2B_G_V8(m, r, 3, v[ 3], v[ 7], v[11], v[15], v[19], v[23], v[27], v[31]); \
BLAKE2B_G_V8(m, r, 4, v[ 0], v[ 5], v[10], v[15], v[16], v[21], v[26], v[31]); \
BLAKE2B_G_V8(m, r, 5, v[ 1], v[ 6], v[11], v[12], v[17], v[22], v[27], v[28]); \
BLAKE2B_G_V8(m, r, 6, v[ 2], v[ 7], v[ 8], v[13], v[18], v[23], v[24], v[29]); \
BLAKE2B_G_V8(m, r, 7, v[ 3], v[ 4], v[ 9], v[14], v[19], v[20], v[25], v[30]); \
} while(0)
#if defined(PERMUTE_WITH_GATHER)
#define BLAKE2B_LOADMSG_V4(w, m) do { \
int i; \
for(i = 0; i < 16; ++i) { \
w[i] = _mm256_i32gather_epi64( \
(const void *)((m) + i * sizeof(uint64_t)), \
_mm_set_epi32(48, 32, 16, 0), \
sizeof(uint64_t) \
); \
} \
} while(0)
#else
#define BLAKE2B_PACK_MSG_V4(w, m) do { \
__m256i t0, t1, t2, t3; \
t0 = _mm256_unpacklo_epi64(m[ 0], m[ 4]); \
t1 = _mm256_unpackhi_epi64(m[ 0], m[ 4]); \
t2 = _mm256_unpacklo_epi64(m[ 8], m[12]); \
t3 = _mm256_unpackhi_epi64(m[ 8], m[12]); \
w[ 0] = _mm256_permute2x128_si256(t0, t2, 0x20); \
w[ 2] = _mm256_permute2x128_si256(t0, t2, 0x31); \
w[ 1] = _mm256_permute2x128_si256(t1, t3, 0x20); \
w[ 3] = _mm256_permute2x128_si256(t1, t3, 0x31); \
t0 = _mm256_unpacklo_epi64(m[ 1], m[ 5]); \
t1 = _mm256_unpackhi_epi64(m[ 1], m[ 5]); \
t2 = _mm256_unpacklo_epi64(m[ 9], m[13]); \
t3 = _mm256_unpackhi_epi64(m[ 9], m[13]); \
w[ 4] = _mm256_permute2x128_si256(t0, t2, 0x20); \
w[ 6] = _mm256_permute2x128_si256(t0, t2, 0x31); \
w[ 5] = _mm256_permute2x128_si256(t1, t3, 0x20); \
w[ 7] = _mm256_permute2x128_si256(t1, t3, 0x31); \
t0 = _mm256_unpacklo_epi64(m[ 2], m[ 6]); \
t1 = _mm256_unpackhi_epi64(m[ 2], m[ 6]); \
t2 = _mm256_unpacklo_epi64(m[10], m[14]); \
t3 = _mm256_unpackhi_epi64(m[10], m[14]); \
w[ 8] = _mm256_permute2x128_si256(t0, t2, 0x20); \
w[10] = _mm256_permute2x128_si256(t0, t2, 0x31); \
w[ 9] = _mm256_permute2x128_si256(t1, t3, 0x20); \
w[11] = _mm256_permute2x128_si256(t1, t3, 0x31); \
t0 = _mm256_unpacklo_epi64(m[ 3], m[ 7]); \
t1 = _mm256_unpackhi_epi64(m[ 3], m[ 7]); \
t2 = _mm256_unpacklo_epi64(m[11], m[15]); \
t3 = _mm256_unpackhi_epi64(m[11], m[15]); \
w[12] = _mm256_permute2x128_si256(t0, t2, 0x20); \
w[14] = _mm256_permute2x128_si256(t0, t2, 0x31); \
w[13] = _mm256_permute2x128_si256(t1, t3, 0x20); \
w[15] = _mm256_permute2x128_si256(t1, t3, 0x31); \
} while(0)
#define BLAKE2B_LOADMSG_V4(w, m) do { \
__m256i t[16]; \
int i; \
for(i = 0; i < 16; ++i) { \
t[i] = LOADU((m) + i * 32); \
} \
BLAKE2B_PACK_MSG_V4(w, t); \
} while(0)
#endif
#define BLAKE2B_UNPACK_STATE_V4(u, v) do { \
__m256i t0, t1, t2, t3; \
t0 = _mm256_unpacklo_epi64(v[0], v[1]); \
t1 = _mm256_unpackhi_epi64(v[0], v[1]); \
t2 = _mm256_unpacklo_epi64(v[2], v[3]); \
t3 = _mm256_unpackhi_epi64(v[2], v[3]); \
u[0] = _mm256_permute2x128_si256(t0, t2, 0x20); \
u[2] = _mm256_permute2x128_si256(t1, t3, 0x20); \
u[4] = _mm256_permute2x128_si256(t0, t2, 0x31); \
u[6] = _mm256_permute2x128_si256(t1, t3, 0x31); \
t0 = _mm256_unpacklo_epi64(v[4], v[5]); \
t1 = _mm256_unpackhi_epi64(v[4], v[5]); \
t2 = _mm256_unpacklo_epi64(v[6], v[7]); \
t3 = _mm256_unpackhi_epi64(v[6], v[7]); \
u[1] = _mm256_permute2x128_si256(t0, t2, 0x20); \
u[3] = _mm256_permute2x128_si256(t1, t3, 0x20); \
u[5] = _mm256_permute2x128_si256(t0, t2, 0x31); \
u[7] = _mm256_permute2x128_si256(t1, t3, 0x31); \
} while(0)
#define BLAKE2B_COMPRESS_V4(v, m, counter, flag) do { \
__m256i iv[8], w[16]; \
int i, r; \
for(i = 0; i < 8; ++i) { \
iv[i] = v[i]; \
} \
v[ 8] = _mm256_set1_epi64x(blake2b_IV[0]); \
v[ 9] = _mm256_set1_epi64x(blake2b_IV[1]); \
v[10] = _mm256_set1_epi64x(blake2b_IV[2]); \
v[11] = _mm256_set1_epi64x(blake2b_IV[3]); \
v[12] = XOR(_mm256_set1_epi64x(blake2b_IV[4]), counter); \
v[13] = _mm256_set1_epi64x(blake2b_IV[5]); \
v[14] = XOR(_mm256_set1_epi64x(blake2b_IV[6]), flag); \
v[15] = XOR(_mm256_set1_epi64x(blake2b_IV[7]), flag); \
BLAKE2B_LOADMSG_V4(w, m); \
for(r = 0; r < 12; ++r) { \
BLAKE2B_ROUND_V4(v, w, r); \
} \
for(i = 0; i < 8; ++i) { \
v[i] = XOR(XOR(v[i], v[i+8]), iv[i]); \
} \
} while(0)
void blake2bx4_final(const blake2b_state *S, uchar *out, u32 blockidx) {
__m256i v[16], s[8], iv[8], w[16], counter, flag;
uint32_t b, i, r;
ALIGN(64) uint8_t buffer[4 * BLAKE2B_BLOCKBYTES]; // 4 * 128
memset(buffer, 0, 4 * BLAKE2B_BLOCKBYTES);
for (i = 0; i < 4; i++) {
memcpy(buffer+128*i, S->buf, S->buflen);
b = htole32(4 * blockidx + i);
memcpy(buffer+128*i + S->buflen, &b, 4);
}
for(i = 0; i < 8; ++i) {
v[i] = _mm256_set1_epi64x(S->h[i]);
}
counter = _mm256_set1_epi64x(128 + S->buflen + 4);
flag = _mm256_set1_epi64x(~0);
for(i = 0; i < 8; ++i) {
iv[i] = v[i];
}
v[ 8] = _mm256_set1_epi64x(blake2b_IV[0]);
v[ 9] = _mm256_set1_epi64x(blake2b_IV[1]);
v[10] = _mm256_set1_epi64x(blake2b_IV[2]);
v[11] = _mm256_set1_epi64x(blake2b_IV[3]);
v[12] = XOR(_mm256_set1_epi64x(blake2b_IV[4]), counter);
v[13] = _mm256_set1_epi64x(blake2b_IV[5]);
v[14] = XOR(_mm256_set1_epi64x(blake2b_IV[6]), flag);
v[15] = _mm256_set1_epi64x(blake2b_IV[7]);
BLAKE2B_LOADMSG_V4(w, buffer);
for(r = 0; r < 12; ++r) {
BLAKE2B_ROUND_V4(v, w, r);
}
for(i = 0; i < 8; ++i) {
v[i] = XOR(XOR(v[i], v[i+8]), iv[i]);
}
BLAKE2B_UNPACK_STATE_V4(s, v);
memcpy(out, s, 256);
}
void blake2bx8_final(const blake2b_state *S, uchar *out, u32 blockidx) {
#if 0
blake2bx4_final(S, out, 2*blockidx);
blake2bx4_final(S, out+256, 2*blockidx+1);
#else
__m256i v[32], s[16], iv[8], w[32], counter, flag;
uint32_t b, i, r;
ALIGN(64) uint8_t buffer[8 * BLAKE2B_BLOCKBYTES];
memset(buffer, 0, 8 * BLAKE2B_BLOCKBYTES);
for (i = 0; i < 8; i++) {
memcpy(buffer+128*i, S->buf, S->buflen);
b = htole32(8 * blockidx + i);
memcpy(buffer+128*i + S->buflen, &b, sizeof(uint32_t));
}
for(i = 0; i < 8; ++i) {
v[16+i] = v[i] = iv[i] = _mm256_set1_epi64x(S->h[i]);
}
counter = _mm256_set1_epi64x(128 + S->buflen + sizeof(uint32_t));
flag = _mm256_set1_epi64x(~0);
v[24] = v[ 8] = _mm256_set1_epi64x(blake2b_IV[0]);
v[25] = v[ 9] = _mm256_set1_epi64x(blake2b_IV[1]);
v[26] = v[10] = _mm256_set1_epi64x(blake2b_IV[2]);
v[27] = v[11] = _mm256_set1_epi64x(blake2b_IV[3]);
v[28] = v[12] = XOR(_mm256_set1_epi64x(blake2b_IV[4]), counter);
v[29] = v[13] = _mm256_set1_epi64x(blake2b_IV[5]);
v[30] = v[14] = XOR(_mm256_set1_epi64x(blake2b_IV[6]), flag);
v[31] = v[15] = _mm256_set1_epi64x(blake2b_IV[7]);
BLAKE2B_LOADMSG_V4(w, buffer);
BLAKE2B_LOADMSG_V4((w+16), (buffer+512));
for(r = 0; r < 12; ++r) {
BLAKE2B_ROUND_V8(v, w, r);
}
for(i = 0; i < 8; ++i) {
v[ i] = XOR(XOR(v[ i], v[ 8+i]), iv[i]);
v[16+i] = XOR(XOR(v[16+i], v[24+i]), iv[i]);
}
BLAKE2B_UNPACK_STATE_V4( s , v );
BLAKE2B_UNPACK_STATE_V4((s+8), (v+16));
memcpy(out, s, 8*64);
#endif
}
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