/*
 * Copyright (C) 2022 - 2025, Stephan Mueller <smueller@chronox.de>
 *
 * License: see LICENSE file in root directory
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ALL OF
 * WHICH ARE HEREBY DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
 * USE OF THIS SOFTWARE, EVEN IF NOT ADVISED OF THE POSSIBILITY OF SUCH
 * DAMAGE.
 */
/*
Implementation by the Keccak, Keyak and Ketje Teams, namely, Guido Bertoni,
Joan Daemen, Michaël Peeters, Gilles Van Assche and Ronny Van Keer, hereby
denoted as "the implementer".

For more information, feedback or questions, please refer to our websites:
http://keccak.noekeon.org/
http://keyak.noekeon.org/
http://ketje.noekeon.org/

To the extent possible under law, the implementer has waived all copyright
and related or neighboring rights to the source code in this file.
http://creativecommons.org/publicdomain/zero/1.0/
*/

#include "alignment.h"
#include "ext_headers.h"
#include "ext_headers_x86.h"
#include "KeccakP-1600-times4-SnP.h"

#if __BYTE_ORDER__ != __ORDER_LITTLE_ENDIAN__
#error Expecting a little-endian platform
#endif

#define KeccakP1600times4_fullUnrolling

typedef __m128i V128;
typedef __m256i V256;

/*
 * We can ignore the alignment warning as we checked
 * for proper alignment.
 */
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-align"

#define laneIndex(instanceIndex, lanePosition)                                 \
	((lanePosition) * 4 + instanceIndex)

#define ANDnu256(a, b) _mm256_andnot_si256(a, b)
#define CONST256(a) _mm256_load_si256((const V256 *)&(a))
#define CONST256_64(a) (V256) _mm256_broadcast_sd((const double *)(&a))
#define LOAD256(a) _mm256_load_si256((const V256 *)&(a))
#define LOAD256u(a) _mm256_loadu_si256((const V256 *)&(a))
#define LOAD4_64(a, b, c, d)                                                   \
	_mm256_set_epi64x((int64_t)(a), (int64_t)(b), (int64_t)(c),            \
			  (int64_t)(d))
#define ROL64in256(d, a, o)                                                    \
	d = _mm256_or_si256(_mm256_slli_epi64(a, o),                           \
			    _mm256_srli_epi64(a, 64 - (o)))
#define ROL64in256_8(d, a) d = _mm256_shuffle_epi8(a, CONST256(rho8))
#define ROL64in256_56(d, a) d = _mm256_shuffle_epi8(a, CONST256(rho56))
static const uint64_t rho8[4] = { 0x0605040302010007, 0x0E0D0C0B0A09080F,
				  0x1615141312111017, 0x1E1D1C1B1A19181F };
static const uint64_t rho56[4] = { 0x0007060504030201, 0x080F0E0D0C0B0A09,
				   0x1017161514131211, 0x181F1E1D1C1B1A19 };
#define STORE256(a, b) _mm256_store_si256((V256 *)&(a), b)
#define STORE256u(a, b) _mm256_storeu_si256((V256 *)&(a), b)
#define STORE2_128(ah, al, v)                                                  \
	_mm256_storeu2_m128d((V128 *)&(ah), (V128 *)&(al), v)
#define XOR256(a, b) _mm256_xor_si256(a, b)
#define XOReq256(a, b) a = _mm256_xor_si256(a, b)
#define UNPACKL(a, b) _mm256_unpacklo_epi64((a), (b))
#define UNPACKH(a, b) _mm256_unpackhi_epi64((a), (b))
#define PERM128(a, b, c)                                                       \
	(V256) _mm256_permute2f128_ps((__m256)(a), (__m256)(b), c)
#define SHUFFLE64(a, b, c)                                                     \
	(V256) _mm256_shuffle_pd((__m256d)(a), (__m256d)(b), c)

#define UNINTLEAVE()                                                           \
	lanesL01 = UNPACKL(lanes0, lanes1),                                    \
	lanesH01 = UNPACKH(lanes0, lanes1),                                    \
	lanesL23 = UNPACKL(lanes2, lanes3),                                    \
	lanesH23 = UNPACKH(lanes2, lanes3),                                    \
	lanes0 = PERM128(lanesL01, lanesL23, 0x20),                            \
	lanes2 = PERM128(lanesL01, lanesL23, 0x31),                            \
	lanes1 = PERM128(lanesH01, lanesH23, 0x20),                            \
	lanes3 = PERM128(lanesH01, lanesH23, 0x31)

#define INTLEAVE()                                                             \
	lanesL01 = PERM128(lanes0, lanes2, 0x20),                              \
	lanesH01 = PERM128(lanes1, lanes3, 0x20),                              \
	lanesL23 = PERM128(lanes0, lanes2, 0x31),                              \
	lanesH23 = PERM128(lanes1, lanes3, 0x31),                              \
	lanes0 = SHUFFLE64(lanesL01, lanesH01, 0x00),                          \
	lanes1 = SHUFFLE64(lanesL01, lanesH01, 0x0F),                          \
	lanes2 = SHUFFLE64(lanesL23, lanesH23, 0x00),                          \
	lanes3 = SHUFFLE64(lanesL23, lanesH23, 0x0F)

#define SnP_laneLengthInBytes 8

void KeccakP1600times4_InitializeAll(void *states)
{
	memset(states, 0, KeccakP1600times4_statesSizeInBytes);
}

void KeccakP1600times4_AddBytes(void *states, unsigned int instanceIndex,
				const unsigned char *data, unsigned int offset,
				unsigned int length)
{
	unsigned int sizeLeft = length;
	unsigned int lanePosition = offset / SnP_laneLengthInBytes;
	unsigned int offsetInLane = offset % SnP_laneLengthInBytes;
	const unsigned char *curData = data;
	uint64_t *statesAsLanes = (uint64_t *)states;

	if ((sizeLeft > 0) && (offsetInLane != 0)) {
		unsigned int bytesInLane = SnP_laneLengthInBytes - offsetInLane;
		uint64_t lane = 0;
		if (bytesInLane > sizeLeft)
			bytesInLane = sizeLeft;
		memcpy((unsigned char *)&lane + offsetInLane, curData,
		       bytesInLane);
		statesAsLanes[laneIndex(instanceIndex, lanePosition)] ^= lane;
		sizeLeft -= bytesInLane;
		lanePosition++;
		curData += bytesInLane;
	}

	while (sizeLeft >= SnP_laneLengthInBytes) {
		uint64_t lane = *((const uint64_t *)curData);

		statesAsLanes[laneIndex(instanceIndex, lanePosition)] ^= lane;
		sizeLeft -= SnP_laneLengthInBytes;
		lanePosition++;
		curData += SnP_laneLengthInBytes;
	}

	if (sizeLeft > 0) {
		uint64_t lane = 0;
		memcpy(&lane, curData, sizeLeft);
		statesAsLanes[laneIndex(instanceIndex, lanePosition)] ^= lane;
	}
}

void KeccakP1600times4_AddLanesAll(void *states, const unsigned char *data,
				   unsigned int laneCount,
				   unsigned int laneOffset)
{
	V256 *stateAsLanes = (V256 *)states;
	unsigned int i;
	const uint64_t *curData0 = (const uint64_t *)data;
	const uint64_t *curData1 =
		(const uint64_t *)(data + laneOffset * SnP_laneLengthInBytes);
	const uint64_t *curData2 =
		(const uint64_t *)(data +
				   laneOffset * 2 * SnP_laneLengthInBytes);
	const uint64_t *curData3 =
		(const uint64_t *)(data +
				   laneOffset * 3 * SnP_laneLengthInBytes);
	V256 lanes0, lanes1, lanes2, lanes3, lanesL01, lanesL23, lanesH01,
		lanesH23;

#define Xor_In(argIndex)                                                       \
	XOReq256(stateAsLanes[argIndex],                                       \
		 LOAD4_64(curData3[argIndex], curData2[argIndex],              \
			  curData1[argIndex], curData0[argIndex]))

#define Xor_In4(argIndex)                                                      \
	lanes0 = LOAD256u(curData0[argIndex]),                                 \
	lanes1 = LOAD256u(curData1[argIndex]),                                 \
	lanes2 = LOAD256u(curData2[argIndex]),                                 \
	lanes3 = LOAD256u(curData3[argIndex]), INTLEAVE(),                     \
	XOReq256(stateAsLanes[argIndex + 0], lanes0),                          \
	XOReq256(stateAsLanes[argIndex + 1], lanes1),                          \
	XOReq256(stateAsLanes[argIndex + 2], lanes2),                          \
	XOReq256(stateAsLanes[argIndex + 3], lanes3)

	if (laneCount >= 16) {
		Xor_In4(0);
		Xor_In4(4);
		Xor_In4(8);
		Xor_In4(12);
		if (laneCount >= 20) {
			Xor_In4(16);
			for (i = 20; i < laneCount; i++)
				Xor_In(i);
		} else {
			for (i = 16; i < laneCount; i++)
				Xor_In(i);
		}
	} else {
		for (i = 0; i < laneCount; i++)
			Xor_In(i);
	}
#undef Xor_In
#undef Xor_In4
}

void KeccakP1600times4_OverwriteBytes(void *states, unsigned int instanceIndex,
				      const unsigned char *data,
				      unsigned int offset, unsigned int length)
{
	unsigned int sizeLeft = length;
	unsigned int lanePosition = offset / SnP_laneLengthInBytes;
	unsigned int offsetInLane = offset % SnP_laneLengthInBytes;
	const unsigned char *curData = data;
	uint64_t *statesAsLanes = (uint64_t *)states;

	if ((sizeLeft > 0) && (offsetInLane != 0)) {
		unsigned int bytesInLane = SnP_laneLengthInBytes - offsetInLane;

		if (bytesInLane > sizeLeft)
			bytesInLane = sizeLeft;
		memcpy(((unsigned char *)&statesAsLanes[laneIndex(
			       instanceIndex, lanePosition)]) +
			       offsetInLane,
		       curData, bytesInLane);
		sizeLeft -= bytesInLane;
		lanePosition++;
		curData += bytesInLane;
	}

	while (sizeLeft >= SnP_laneLengthInBytes) {
		uint64_t lane = *((const uint64_t *)curData);

		statesAsLanes[laneIndex(instanceIndex, lanePosition)] = lane;
		sizeLeft -= SnP_laneLengthInBytes;
		lanePosition++;
		curData += SnP_laneLengthInBytes;
	}

	if (sizeLeft > 0) {
		memcpy(&statesAsLanes[laneIndex(instanceIndex, lanePosition)],
		       curData, sizeLeft);
	}
}

void KeccakP1600times4_OverwriteLanesAll(void *states,
					 const unsigned char *data,
					 unsigned int laneCount,
					 unsigned int laneOffset)
{
	V256 *stateAsLanes = (V256 *)states;
	unsigned int i;
	const uint64_t *curData0 = (const uint64_t *)data;
	const uint64_t *curData1 =
		(const uint64_t *)(data + laneOffset * SnP_laneLengthInBytes);
	const uint64_t *curData2 =
		(const uint64_t *)(data +
				   laneOffset * 2 * SnP_laneLengthInBytes);
	const uint64_t *curData3 =
		(const uint64_t *)(data +
				   laneOffset * 3 * SnP_laneLengthInBytes);
	V256 lanes0, lanes1, lanes2, lanes3, lanesL01, lanesL23, lanesH01,
		lanesH23;

#define OverWr(argIndex)                                                       \
	STORE256(stateAsLanes[argIndex],                                       \
		 LOAD4_64(curData3[argIndex], curData2[argIndex],              \
			  curData1[argIndex], curData0[argIndex]))

#define OverWr4(argIndex)                                                      \
	lanes0 = LOAD256u(curData0[argIndex]),                                 \
	lanes1 = LOAD256u(curData1[argIndex]),                                 \
	lanes2 = LOAD256u(curData2[argIndex]),                                 \
	lanes3 = LOAD256u(curData3[argIndex]), INTLEAVE(),                     \
	STORE256(stateAsLanes[argIndex + 0], lanes0),                          \
	STORE256(stateAsLanes[argIndex + 1], lanes1),                          \
	STORE256(stateAsLanes[argIndex + 2], lanes2),                          \
	STORE256(stateAsLanes[argIndex + 3], lanes3)

	if (laneCount >= 16) {
		OverWr4(0);
		OverWr4(4);
		OverWr4(8);
		OverWr4(12);
		if (laneCount >= 20) {
			OverWr4(16);
			for (i = 20; i < laneCount; i++)
				OverWr(i);
		} else {
			for (i = 16; i < laneCount; i++)
				OverWr(i);
		}
	} else {
		for (i = 0; i < laneCount; i++)
			OverWr(i);
	}
#undef OverWr
#undef OverWr4
}

void KeccakP1600times4_OverwriteWithZeroes(void *states,
					   unsigned int instanceIndex,
					   unsigned int byteCount)
{
	unsigned int sizeLeft = byteCount;
	unsigned int lanePosition = 0;
	uint64_t *statesAsLanes = (uint64_t *)states;

	while (sizeLeft >= SnP_laneLengthInBytes) {
		statesAsLanes[laneIndex(instanceIndex, lanePosition)] = 0;
		sizeLeft -= SnP_laneLengthInBytes;
		lanePosition++;
	}

	if (sizeLeft > 0) {
		memset(&statesAsLanes[laneIndex(instanceIndex, lanePosition)],
		       0, sizeLeft);
	}
}

void KeccakP1600times4_ExtractBytes(const void *states,
				    unsigned int instanceIndex,
				    unsigned char *data, unsigned int offset,
				    unsigned int length)
{
	unsigned int sizeLeft = length;
	unsigned int lanePosition = offset / SnP_laneLengthInBytes;
	unsigned int offsetInLane = offset % SnP_laneLengthInBytes;
	unsigned char *curData = data;
	const uint64_t *statesAsLanes = (const uint64_t *)states;

	if ((sizeLeft > 0) && (offsetInLane != 0)) {
		unsigned int bytesInLane = SnP_laneLengthInBytes - offsetInLane;

		if (bytesInLane > sizeLeft)
			bytesInLane = sizeLeft;
		memcpy(curData,
		       ((unsigned char *)&statesAsLanes[laneIndex(
			       instanceIndex, lanePosition)]) +
			       offsetInLane,
		       bytesInLane);
		sizeLeft -= bytesInLane;
		lanePosition++;
		curData += bytesInLane;
	}

	while (sizeLeft >= SnP_laneLengthInBytes) {
		*(uint64_t *)curData =
			statesAsLanes[laneIndex(instanceIndex, lanePosition)];
		sizeLeft -= SnP_laneLengthInBytes;
		lanePosition++;
		curData += SnP_laneLengthInBytes;
	}

	if (sizeLeft > 0) {
		memcpy(curData,
		       &statesAsLanes[laneIndex(instanceIndex, lanePosition)],
		       sizeLeft);
	}
}

void KeccakP1600times4_ExtractLanesAll(const void *states, unsigned char *data,
				       unsigned int laneCount,
				       unsigned int laneOffset)
{
	uint64_t *curData0 = (uint64_t *)data;
	uint64_t *curData1 =
		(uint64_t *)(data + laneOffset * 1 * SnP_laneLengthInBytes);
	uint64_t *curData2 =
		(uint64_t *)(data + laneOffset * 2 * SnP_laneLengthInBytes);
	uint64_t *curData3 =
		(uint64_t *)(data + laneOffset * 3 * SnP_laneLengthInBytes);

	const V256 *stateAsLanes = (const V256 *)states;
	const uint64_t *stateAsLanes64 = (const uint64_t *)states;
	V256 lanes0, lanes1, lanes2, lanes3, lanesL01, lanesL23, lanesH01,
		lanesH23;
	unsigned int i;

#define Extr(argIndex)                                                         \
	curData0[argIndex] = stateAsLanes64[4 * (argIndex)],                   \
	curData1[argIndex] = stateAsLanes64[4 * (argIndex) + 1],               \
	curData2[argIndex] = stateAsLanes64[4 * (argIndex) + 2],               \
	curData3[argIndex] = stateAsLanes64[4 * (argIndex) + 3]

#define Extr4(argIndex)                                                        \
	lanes0 = LOAD256(stateAsLanes[argIndex + 0]),                          \
	lanes1 = LOAD256(stateAsLanes[argIndex + 1]),                          \
	lanes2 = LOAD256(stateAsLanes[argIndex + 2]),                          \
	lanes3 = LOAD256(stateAsLanes[argIndex + 3]), UNINTLEAVE(),            \
	STORE256u(curData0[argIndex], lanes0),                                 \
	STORE256u(curData1[argIndex], lanes1),                                 \
	STORE256u(curData2[argIndex], lanes2),                                 \
	STORE256u(curData3[argIndex], lanes3)

	if (laneCount >= 16) {
		Extr4(0);
		Extr4(4);
		Extr4(8);
		Extr4(12);
		if (laneCount >= 20) {
			Extr4(16);
			for (i = 20; i < laneCount; i++)
				Extr(i);
		} else {
			for (i = 16; i < laneCount; i++)
				Extr(i);
		}
	} else {
		for (i = 0; i < laneCount; i++)
			Extr(i);
	}
#undef Extr
#undef Extr4
}

void KeccakP1600times4_ExtractAndAddBytes(const void *states,
					  unsigned int instanceIndex,
					  const unsigned char *input,
					  unsigned char *output,
					  unsigned int offset,
					  unsigned int length)
{
	unsigned int sizeLeft = length;
	unsigned int lanePosition = offset / SnP_laneLengthInBytes;
	unsigned int offsetInLane = offset % SnP_laneLengthInBytes;
	const unsigned char *curInput = input;
	unsigned char *curOutput = output;
	const uint64_t *statesAsLanes = (const uint64_t *)states;

	if ((sizeLeft > 0) && (offsetInLane != 0)) {
		unsigned int bytesInLane = SnP_laneLengthInBytes - offsetInLane;

		uint64_t lane =
			statesAsLanes[laneIndex(instanceIndex, lanePosition)] >>
			(8 * offsetInLane);
		if (bytesInLane > sizeLeft)
			bytesInLane = sizeLeft;
		sizeLeft -= bytesInLane;
		do {
			*(curOutput++) = *(curInput++) ^ (unsigned char)lane;
			lane >>= 8;
		} while (--bytesInLane != 0);
		lanePosition++;
	}

	while (sizeLeft >= SnP_laneLengthInBytes) {
		*((uint64_t *)curOutput) =
			*((uint64_t *)curInput) ^
			statesAsLanes[laneIndex(instanceIndex, lanePosition)];
		sizeLeft -= SnP_laneLengthInBytes;
		lanePosition++;
		curInput += SnP_laneLengthInBytes;
		curOutput += SnP_laneLengthInBytes;
	}

	if (sizeLeft != 0) {
		uint64_t lane =
			statesAsLanes[laneIndex(instanceIndex, lanePosition)];

		do {
			*(curOutput++) = *(curInput++) ^ (unsigned char)lane;
			lane >>= 8;
		} while (--sizeLeft != 0);
	}
}

void KeccakP1600times4_ExtractAndAddLanesAll(const void *states,
					     const unsigned char *input,
					     unsigned char *output,
					     unsigned int laneCount,
					     unsigned int laneOffset)
{
	const uint64_t *curInput0 = (uint64_t *)input;
	const uint64_t *curInput1 =
		(uint64_t *)(input + laneOffset * 1 * SnP_laneLengthInBytes);
	const uint64_t *curInput2 =
		(uint64_t *)(input + laneOffset * 2 * SnP_laneLengthInBytes);
	const uint64_t *curInput3 =
		(uint64_t *)(input + laneOffset * 3 * SnP_laneLengthInBytes);
	uint64_t *curOutput0 = (uint64_t *)output;
	uint64_t *curOutput1 =
		(uint64_t *)(output + laneOffset * 1 * SnP_laneLengthInBytes);
	uint64_t *curOutput2 =
		(uint64_t *)(output + laneOffset * 2 * SnP_laneLengthInBytes);
	uint64_t *curOutput3 =
		(uint64_t *)(output + laneOffset * 3 * SnP_laneLengthInBytes);

	const V256 *stateAsLanes = (const V256 *)states;
	const uint64_t *stateAsLanes64 = (const uint64_t *)states;
	V256 lanes0, lanes1, lanes2, lanes3, lanesL01, lanesL23, lanesH01,
		lanesH23;
	unsigned int i;

#define ExtrXor(argIndex)                                                      \
	curOutput0[argIndex] =                                                 \
		curInput0[argIndex] ^ stateAsLanes64[4 * (argIndex)],          \
	curOutput1[argIndex] =                                                 \
		curInput1[argIndex] ^ stateAsLanes64[4 * (argIndex) + 1],      \
	curOutput2[argIndex] =                                                 \
		curInput2[argIndex] ^ stateAsLanes64[4 * (argIndex) + 2],      \
	curOutput3[argIndex] =                                                 \
		curInput3[argIndex] ^ stateAsLanes64[4 * (argIndex) + 3]

#define ExtrXor4(argIndex)                                                     \
	lanes0 = LOAD256(stateAsLanes[argIndex + 0]),                          \
	lanes1 = LOAD256(stateAsLanes[argIndex + 1]),                          \
	lanes2 = LOAD256(stateAsLanes[argIndex + 2]),                          \
	lanes3 = LOAD256(stateAsLanes[argIndex + 3]), UNINTLEAVE(),            \
	lanesL01 = LOAD256u(curInput0[argIndex]),                              \
	lanesH01 = LOAD256u(curInput1[argIndex]),                              \
	lanesL23 = LOAD256u(curInput2[argIndex]),                              \
	lanesH23 = LOAD256u(curInput3[argIndex]), XOReq256(lanes0, lanesL01),  \
	XOReq256(lanes1, lanesH01), XOReq256(lanes2, lanesL23),                \
	XOReq256(lanes3, lanesH23), STORE256u(curOutput0[argIndex], lanes0),   \
	STORE256u(curOutput1[argIndex], lanes1),                               \
	STORE256u(curOutput2[argIndex], lanes2),                               \
	STORE256u(curOutput3[argIndex], lanes3)

	if (laneCount >= 16) {
		ExtrXor4(0);
		ExtrXor4(4);
		ExtrXor4(8);
		ExtrXor4(12);
		if (laneCount >= 20) {
			ExtrXor4(16);
			for (i = 20; i < laneCount; i++)
				ExtrXor(i);
		} else {
			for (i = 16; i < laneCount; i++)
				ExtrXor(i);
		}
	} else {
		for (i = 0; i < laneCount; i++)
			ExtrXor(i);
	}
#undef ExtrXor
#undef ExtrXor4
}

#define declareABCDE                                                           \
	V256 Aba, Abe, Abi, Abo, Abu;                                          \
	V256 Aga, Age, Agi, Ago, Agu;                                          \
	V256 Aka, Ake, Aki, Ako, Aku;                                          \
	V256 Ama, Ame, Ami, Amo, Amu;                                          \
	V256 Asa, Ase, Asi, Aso, Asu;                                          \
	V256 Bba, Bbe, Bbi, Bbo, Bbu;                                          \
	V256 Bga, Bge, Bgi, Bgo, Bgu;                                          \
	V256 Bka, Bke, Bki, Bko, Bku;                                          \
	V256 Bma, Bme, Bmi, Bmo, Bmu;                                          \
	V256 Bsa, Bse, Bsi, Bso, Bsu;                                          \
	V256 Ca, Ce, Ci, Co, Cu;                                               \
	V256 Ca1, Ce1, Ci1, Co1, Cu1;                                          \
	V256 Da, De, Di, Do, Du;                                               \
	V256 Eba, Ebe, Ebi, Ebo, Ebu;                                          \
	V256 Ega, Ege, Egi, Ego, Egu;                                          \
	V256 Eka, Eke, Eki, Eko, Eku;                                          \
	V256 Ema, Eme, Emi, Emo, Emu;                                          \
	V256 Esa, Ese, Esi, Eso, Esu;

#define prepareTheta                                                           \
	Ca = XOR256(Aba, XOR256(Aga, XOR256(Aka, XOR256(Ama, Asa))));          \
	Ce = XOR256(Abe, XOR256(Age, XOR256(Ake, XOR256(Ame, Ase))));          \
	Ci = XOR256(Abi, XOR256(Agi, XOR256(Aki, XOR256(Ami, Asi))));          \
	Co = XOR256(Abo, XOR256(Ago, XOR256(Ako, XOR256(Amo, Aso))));          \
	Cu = XOR256(Abu, XOR256(Agu, XOR256(Aku, XOR256(Amu, Asu))));

/* --- Theta Rho Pi Chi Iota Prepare-theta */
/* --- 64-bit lanes mapped to 64-bit words */
#define thetaRhoPiChiIotaPrepareTheta(i, A, E)                                 \
	ROL64in256(Ce1, Ce, 1);                                                \
	Da = XOR256(Cu, Ce1);                                                  \
	ROL64in256(Ci1, Ci, 1);                                                \
	De = XOR256(Ca, Ci1);                                                  \
	ROL64in256(Co1, Co, 1);                                                \
	Di = XOR256(Ce, Co1);                                                  \
	ROL64in256(Cu1, Cu, 1);                                                \
	Do = XOR256(Ci, Cu1);                                                  \
	ROL64in256(Ca1, Ca, 1);                                                \
	Du = XOR256(Co, Ca1);                                                  \
                                                                               \
	XOReq256(A##ba, Da);                                                   \
	Bba = A##ba;                                                           \
	XOReq256(A##ge, De);                                                   \
	ROL64in256(Bbe, A##ge, 44);                                            \
	XOReq256(A##ki, Di);                                                   \
	ROL64in256(Bbi, A##ki, 43);                                            \
	E##ba = XOR256(Bba, ANDnu256(Bbe, Bbi));                               \
	XOReq256(E##ba, CONST256_64(KeccakF1600RoundConstants[i]));            \
	Ca = E##ba;                                                            \
	XOReq256(A##mo, Do);                                                   \
	ROL64in256(Bbo, A##mo, 21);                                            \
	E##be = XOR256(Bbe, ANDnu256(Bbi, Bbo));                               \
	Ce = E##be;                                                            \
	XOReq256(A##su, Du);                                                   \
	ROL64in256(Bbu, A##su, 14);                                            \
	E##bi = XOR256(Bbi, ANDnu256(Bbo, Bbu));                               \
	Ci = E##bi;                                                            \
	E##bo = XOR256(Bbo, ANDnu256(Bbu, Bba));                               \
	Co = E##bo;                                                            \
	E##bu = XOR256(Bbu, ANDnu256(Bba, Bbe));                               \
	Cu = E##bu;                                                            \
                                                                               \
	XOReq256(A##bo, Do);                                                   \
	ROL64in256(Bga, A##bo, 28);                                            \
	XOReq256(A##gu, Du);                                                   \
	ROL64in256(Bge, A##gu, 20);                                            \
	XOReq256(A##ka, Da);                                                   \
	ROL64in256(Bgi, A##ka, 3);                                             \
	E##ga = XOR256(Bga, ANDnu256(Bge, Bgi));                               \
	XOReq256(Ca, E##ga);                                                   \
	XOReq256(A##me, De);                                                   \
	ROL64in256(Bgo, A##me, 45);                                            \
	E##ge = XOR256(Bge, ANDnu256(Bgi, Bgo));                               \
	XOReq256(Ce, E##ge);                                                   \
	XOReq256(A##si, Di);                                                   \
	ROL64in256(Bgu, A##si, 61);                                            \
	E##gi = XOR256(Bgi, ANDnu256(Bgo, Bgu));                               \
	XOReq256(Ci, E##gi);                                                   \
	E##go = XOR256(Bgo, ANDnu256(Bgu, Bga));                               \
	XOReq256(Co, E##go);                                                   \
	E##gu = XOR256(Bgu, ANDnu256(Bga, Bge));                               \
	XOReq256(Cu, E##gu);                                                   \
                                                                               \
	XOReq256(A##be, De);                                                   \
	ROL64in256(Bka, A##be, 1);                                             \
	XOReq256(A##gi, Di);                                                   \
	ROL64in256(Bke, A##gi, 6);                                             \
	XOReq256(A##ko, Do);                                                   \
	ROL64in256(Bki, A##ko, 25);                                            \
	E##ka = XOR256(Bka, ANDnu256(Bke, Bki));                               \
	XOReq256(Ca, E##ka);                                                   \
	XOReq256(A##mu, Du);                                                   \
	ROL64in256_8(Bko, A##mu);                                              \
	E##ke = XOR256(Bke, ANDnu256(Bki, Bko));                               \
	XOReq256(Ce, E##ke);                                                   \
	XOReq256(A##sa, Da);                                                   \
	ROL64in256(Bku, A##sa, 18);                                            \
	E##ki = XOR256(Bki, ANDnu256(Bko, Bku));                               \
	XOReq256(Ci, E##ki);                                                   \
	E##ko = XOR256(Bko, ANDnu256(Bku, Bka));                               \
	XOReq256(Co, E##ko);                                                   \
	E##ku = XOR256(Bku, ANDnu256(Bka, Bke));                               \
	XOReq256(Cu, E##ku);                                                   \
                                                                               \
	XOReq256(A##bu, Du);                                                   \
	ROL64in256(Bma, A##bu, 27);                                            \
	XOReq256(A##ga, Da);                                                   \
	ROL64in256(Bme, A##ga, 36);                                            \
	XOReq256(A##ke, De);                                                   \
	ROL64in256(Bmi, A##ke, 10);                                            \
	E##ma = XOR256(Bma, ANDnu256(Bme, Bmi));                               \
	XOReq256(Ca, E##ma);                                                   \
	XOReq256(A##mi, Di);                                                   \
	ROL64in256(Bmo, A##mi, 15);                                            \
	E##me = XOR256(Bme, ANDnu256(Bmi, Bmo));                               \
	XOReq256(Ce, E##me);                                                   \
	XOReq256(A##so, Do);                                                   \
	ROL64in256_56(Bmu, A##so);                                             \
	E##mi = XOR256(Bmi, ANDnu256(Bmo, Bmu));                               \
	XOReq256(Ci, E##mi);                                                   \
	E##mo = XOR256(Bmo, ANDnu256(Bmu, Bma));                               \
	XOReq256(Co, E##mo);                                                   \
	E##mu = XOR256(Bmu, ANDnu256(Bma, Bme));                               \
	XOReq256(Cu, E##mu);                                                   \
                                                                               \
	XOReq256(A##bi, Di);                                                   \
	ROL64in256(Bsa, A##bi, 62);                                            \
	XOReq256(A##go, Do);                                                   \
	ROL64in256(Bse, A##go, 55);                                            \
	XOReq256(A##ku, Du);                                                   \
	ROL64in256(Bsi, A##ku, 39);                                            \
	E##sa = XOR256(Bsa, ANDnu256(Bse, Bsi));                               \
	XOReq256(Ca, E##sa);                                                   \
	XOReq256(A##ma, Da);                                                   \
	ROL64in256(Bso, A##ma, 41);                                            \
	E##se = XOR256(Bse, ANDnu256(Bsi, Bso));                               \
	XOReq256(Ce, E##se);                                                   \
	XOReq256(A##se, De);                                                   \
	ROL64in256(Bsu, A##se, 2);                                             \
	E##si = XOR256(Bsi, ANDnu256(Bso, Bsu));                               \
	XOReq256(Ci, E##si);                                                   \
	E##so = XOR256(Bso, ANDnu256(Bsu, Bsa));                               \
	XOReq256(Co, E##so);                                                   \
	E##su = XOR256(Bsu, ANDnu256(Bsa, Bse));                               \
	XOReq256(Cu, E##su);

/* --- Theta Rho Pi Chi Iota */
/* --- 64-bit lanes mapped to 64-bit words */
#define thetaRhoPiChiIota(i, A, E)                                             \
	ROL64in256(Ce1, Ce, 1);                                                \
	Da = XOR256(Cu, Ce1);                                                  \
	ROL64in256(Ci1, Ci, 1);                                                \
	De = XOR256(Ca, Ci1);                                                  \
	ROL64in256(Co1, Co, 1);                                                \
	Di = XOR256(Ce, Co1);                                                  \
	ROL64in256(Cu1, Cu, 1);                                                \
	Do = XOR256(Ci, Cu1);                                                  \
	ROL64in256(Ca1, Ca, 1);                                                \
	Du = XOR256(Co, Ca1);                                                  \
                                                                               \
	XOReq256(A##ba, Da);                                                   \
	Bba = A##ba;                                                           \
	XOReq256(A##ge, De);                                                   \
	ROL64in256(Bbe, A##ge, 44);                                            \
	XOReq256(A##ki, Di);                                                   \
	ROL64in256(Bbi, A##ki, 43);                                            \
	E##ba = XOR256(Bba, ANDnu256(Bbe, Bbi));                               \
	XOReq256(E##ba, CONST256_64(KeccakF1600RoundConstants[i]));            \
	XOReq256(A##mo, Do);                                                   \
	ROL64in256(Bbo, A##mo, 21);                                            \
	E##be = XOR256(Bbe, ANDnu256(Bbi, Bbo));                               \
	XOReq256(A##su, Du);                                                   \
	ROL64in256(Bbu, A##su, 14);                                            \
	E##bi = XOR256(Bbi, ANDnu256(Bbo, Bbu));                               \
	E##bo = XOR256(Bbo, ANDnu256(Bbu, Bba));                               \
	E##bu = XOR256(Bbu, ANDnu256(Bba, Bbe));                               \
                                                                               \
	XOReq256(A##bo, Do);                                                   \
	ROL64in256(Bga, A##bo, 28);                                            \
	XOReq256(A##gu, Du);                                                   \
	ROL64in256(Bge, A##gu, 20);                                            \
	XOReq256(A##ka, Da);                                                   \
	ROL64in256(Bgi, A##ka, 3);                                             \
	E##ga = XOR256(Bga, ANDnu256(Bge, Bgi));                               \
	XOReq256(A##me, De);                                                   \
	ROL64in256(Bgo, A##me, 45);                                            \
	E##ge = XOR256(Bge, ANDnu256(Bgi, Bgo));                               \
	XOReq256(A##si, Di);                                                   \
	ROL64in256(Bgu, A##si, 61);                                            \
	E##gi = XOR256(Bgi, ANDnu256(Bgo, Bgu));                               \
	E##go = XOR256(Bgo, ANDnu256(Bgu, Bga));                               \
	E##gu = XOR256(Bgu, ANDnu256(Bga, Bge));                               \
                                                                               \
	XOReq256(A##be, De);                                                   \
	ROL64in256(Bka, A##be, 1);                                             \
	XOReq256(A##gi, Di);                                                   \
	ROL64in256(Bke, A##gi, 6);                                             \
	XOReq256(A##ko, Do);                                                   \
	ROL64in256(Bki, A##ko, 25);                                            \
	E##ka = XOR256(Bka, ANDnu256(Bke, Bki));                               \
	XOReq256(A##mu, Du);                                                   \
	ROL64in256_8(Bko, A##mu);                                              \
	E##ke = XOR256(Bke, ANDnu256(Bki, Bko));                               \
	XOReq256(A##sa, Da);                                                   \
	ROL64in256(Bku, A##sa, 18);                                            \
	E##ki = XOR256(Bki, ANDnu256(Bko, Bku));                               \
	E##ko = XOR256(Bko, ANDnu256(Bku, Bka));                               \
	E##ku = XOR256(Bku, ANDnu256(Bka, Bke));                               \
                                                                               \
	XOReq256(A##bu, Du);                                                   \
	ROL64in256(Bma, A##bu, 27);                                            \
	XOReq256(A##ga, Da);                                                   \
	ROL64in256(Bme, A##ga, 36);                                            \
	XOReq256(A##ke, De);                                                   \
	ROL64in256(Bmi, A##ke, 10);                                            \
	E##ma = XOR256(Bma, ANDnu256(Bme, Bmi));                               \
	XOReq256(A##mi, Di);                                                   \
	ROL64in256(Bmo, A##mi, 15);                                            \
	E##me = XOR256(Bme, ANDnu256(Bmi, Bmo));                               \
	XOReq256(A##so, Do);                                                   \
	ROL64in256_56(Bmu, A##so);                                             \
	E##mi = XOR256(Bmi, ANDnu256(Bmo, Bmu));                               \
	E##mo = XOR256(Bmo, ANDnu256(Bmu, Bma));                               \
	E##mu = XOR256(Bmu, ANDnu256(Bma, Bme));                               \
                                                                               \
	XOReq256(A##bi, Di);                                                   \
	ROL64in256(Bsa, A##bi, 62);                                            \
	XOReq256(A##go, Do);                                                   \
	ROL64in256(Bse, A##go, 55);                                            \
	XOReq256(A##ku, Du);                                                   \
	ROL64in256(Bsi, A##ku, 39);                                            \
	E##sa = XOR256(Bsa, ANDnu256(Bse, Bsi));                               \
	XOReq256(A##ma, Da);                                                   \
	ROL64in256(Bso, A##ma, 41);                                            \
	E##se = XOR256(Bse, ANDnu256(Bsi, Bso));                               \
	XOReq256(A##se, De);                                                   \
	ROL64in256(Bsu, A##se, 2);                                             \
	E##si = XOR256(Bsi, ANDnu256(Bso, Bsu));                               \
	E##so = XOR256(Bso, ANDnu256(Bsu, Bsa));                               \
	E##su = XOR256(Bsu, ANDnu256(Bsa, Bse));

static __align(KeccakP1600times4_statesAlignment) const uint64_t
	KeccakF1600RoundConstants[24] = {
		0x0000000000000001ULL, 0x0000000000008082ULL,
		0x800000000000808aULL, 0x8000000080008000ULL,
		0x000000000000808bULL, 0x0000000080000001ULL,
		0x8000000080008081ULL, 0x8000000000008009ULL,
		0x000000000000008aULL, 0x0000000000000088ULL,
		0x0000000080008009ULL, 0x000000008000000aULL,
		0x000000008000808bULL, 0x800000000000008bULL,
		0x8000000000008089ULL, 0x8000000000008003ULL,
		0x8000000000008002ULL, 0x8000000000000080ULL,
		0x000000000000800aULL, 0x800000008000000aULL,
		0x8000000080008081ULL, 0x8000000000008080ULL,
		0x0000000080000001ULL, 0x8000000080008008ULL
	};

#define copyFromState(X, state)                                                \
	X##ba = LOAD256(state[0]);                                             \
	X##be = LOAD256(state[1]);                                             \
	X##bi = LOAD256(state[2]);                                             \
	X##bo = LOAD256(state[3]);                                             \
	X##bu = LOAD256(state[4]);                                             \
	X##ga = LOAD256(state[5]);                                             \
	X##ge = LOAD256(state[6]);                                             \
	X##gi = LOAD256(state[7]);                                             \
	X##go = LOAD256(state[8]);                                             \
	X##gu = LOAD256(state[9]);                                             \
	X##ka = LOAD256(state[10]);                                            \
	X##ke = LOAD256(state[11]);                                            \
	X##ki = LOAD256(state[12]);                                            \
	X##ko = LOAD256(state[13]);                                            \
	X##ku = LOAD256(state[14]);                                            \
	X##ma = LOAD256(state[15]);                                            \
	X##me = LOAD256(state[16]);                                            \
	X##mi = LOAD256(state[17]);                                            \
	X##mo = LOAD256(state[18]);                                            \
	X##mu = LOAD256(state[19]);                                            \
	X##sa = LOAD256(state[20]);                                            \
	X##se = LOAD256(state[21]);                                            \
	X##si = LOAD256(state[22]);                                            \
	X##so = LOAD256(state[23]);                                            \
	X##su = LOAD256(state[24]);

#define copyToState(state, X)                                                  \
	STORE256(state[0], X##ba);                                             \
	STORE256(state[1], X##be);                                             \
	STORE256(state[2], X##bi);                                             \
	STORE256(state[3], X##bo);                                             \
	STORE256(state[4], X##bu);                                             \
	STORE256(state[5], X##ga);                                             \
	STORE256(state[6], X##ge);                                             \
	STORE256(state[7], X##gi);                                             \
	STORE256(state[8], X##go);                                             \
	STORE256(state[9], X##gu);                                             \
	STORE256(state[10], X##ka);                                            \
	STORE256(state[11], X##ke);                                            \
	STORE256(state[12], X##ki);                                            \
	STORE256(state[13], X##ko);                                            \
	STORE256(state[14], X##ku);                                            \
	STORE256(state[15], X##ma);                                            \
	STORE256(state[16], X##me);                                            \
	STORE256(state[17], X##mi);                                            \
	STORE256(state[18], X##mo);                                            \
	STORE256(state[19], X##mu);                                            \
	STORE256(state[20], X##sa);                                            \
	STORE256(state[21], X##se);                                            \
	STORE256(state[22], X##si);                                            \
	STORE256(state[23], X##so);                                            \
	STORE256(state[24], X##su);

#define copyStateVariables(X, Y)                                               \
	X##ba = Y##ba;                                                         \
	X##be = Y##be;                                                         \
	X##bi = Y##bi;                                                         \
	X##bo = Y##bo;                                                         \
	X##bu = Y##bu;                                                         \
	X##ga = Y##ga;                                                         \
	X##ge = Y##ge;                                                         \
	X##gi = Y##gi;                                                         \
	X##go = Y##go;                                                         \
	X##gu = Y##gu;                                                         \
	X##ka = Y##ka;                                                         \
	X##ke = Y##ke;                                                         \
	X##ki = Y##ki;                                                         \
	X##ko = Y##ko;                                                         \
	X##ku = Y##ku;                                                         \
	X##ma = Y##ma;                                                         \
	X##me = Y##me;                                                         \
	X##mi = Y##mi;                                                         \
	X##mo = Y##mo;                                                         \
	X##mu = Y##mu;                                                         \
	X##sa = Y##sa;                                                         \
	X##se = Y##se;                                                         \
	X##si = Y##si;                                                         \
	X##so = Y##so;                                                         \
	X##su = Y##su;

#ifdef KeccakP1600times4_fullUnrolling
#define FullUnrolling
#else
#define Unrolling KeccakP1600times4_unrolling
#endif
#include "KeccakP-1600-unrolling.macros"

void KeccakP1600times4_PermuteAll_24rounds(void *states)
{
	V256 *statesAsLanes = (V256 *)states;
	declareABCDE
#ifndef KeccakP1600times4_fullUnrolling
		unsigned int i;
#endif

	// clang-format off
	copyFromState(A, statesAsLanes)
	rounds24
	copyToState(statesAsLanes, A)
	// clang-format on
}

void KeccakP1600times4_PermuteAll_12rounds(void *states)
{
	V256 *statesAsLanes = (V256 *)states;
	declareABCDE
#ifndef KeccakP1600times4_fullUnrolling
		unsigned int i;
#endif

	// clang-format off
	copyFromState(A, statesAsLanes)
	rounds12
	copyToState(statesAsLanes, A)
	// clang-format on
}

size_t KeccakF1600times4_FastLoop_Absorb(void *states, unsigned int laneCount,
					 unsigned int laneOffsetParallel,
					 unsigned int laneOffsetSerial,
					 const unsigned char *data,
					 size_t dataByteLen)
{
	if (laneCount == 21) {
#if 0
		const unsigned char *dataStart = data;
		const uint64_t *curData0 = (const uint64_t *)data;
		const uint64_t *curData1 = (const uint64_t *)(data+laneOffsetParallel*1*SnP_laneLengthInBytes);
		const uint64_t *curData2 = (const uint64_t *)(data+laneOffsetParallel*2*SnP_laneLengthInBytes);
		const uint64_t *curData3 = (const uint64_t *)(data+laneOffsetParallel*3*SnP_laneLengthInBytes);

		while (dataByteLen >= (laneOffsetParallel*3 + laneCount)*8) {
			V256 *stateAsLanes = (V256 *)states;
			V256 lanes0, lanes1, lanes2, lanes3, lanesL01, lanesL23, lanesH01, lanesH23;
#define Xor_In(argIndex)                                                       \
	XOReq256(stateAsLanes[argIndex],                                       \
		 LOAD4_64(curData3[argIndex], curData2[argIndex],              \
			  curData1[argIndex], curData0[argIndex]))
#define Xor_In4(argIndex)                                                      \
	lanes0 = LOAD256u(curData0[argIndex]),                                 \
	lanes1 = LOAD256u(curData1[argIndex]),                                 \
	lanes2 = LOAD256u(curData2[argIndex]),                                 \
	lanes3 = LOAD256u(curData3[argIndex]), INTLEAVE(),                     \
	XOReq256(stateAsLanes[argIndex + 0], lanes0),                          \
	XOReq256(stateAsLanes[argIndex + 1], lanes1),                          \
	XOReq256(stateAsLanes[argIndex + 2], lanes2),                          \
	XOReq256(stateAsLanes[argIndex + 3], lanes3)
			Xor_In4( 0 );
			Xor_In4( 4 );
			Xor_In4( 8 );
			Xor_In4( 12 );
			Xor_In4( 16 );
			Xor_In( 20 );
#undef Xor_In
#undef Xor_In4
			KeccakP1600times4_PermuteAll_24rounds(states);
			curData0 += laneOffsetSerial;
			curData1 += laneOffsetSerial;
			curData2 += laneOffsetSerial;
			curData3 += laneOffsetSerial;
			dataByteLen -= laneOffsetSerial*8;
		}
		return (const unsigned char *)curData0 - dataStart;
#else
		//        unsigned int i;
		const unsigned char *dataStart = data;
		const uint64_t *curData0 = (const uint64_t *)data;
		const uint64_t *curData1 =
			(const uint64_t *)(data +
					   laneOffsetParallel * 1 *
						   SnP_laneLengthInBytes);
		const uint64_t *curData2 =
			(const uint64_t *)(data +
					   laneOffsetParallel * 2 *
						   SnP_laneLengthInBytes);
		const uint64_t *curData3 =
			(const uint64_t *)(data +
					   laneOffsetParallel * 3 *
						   SnP_laneLengthInBytes);
		V256 *statesAsLanes = (V256 *)states;
		declareABCDE

		copyFromState(A, statesAsLanes) while (
			dataByteLen >= (laneOffsetParallel * 3 + laneCount) * 8)
		{
#define XOR_In(Xxx, argIndex)                                                  \
	XOReq256(Xxx, LOAD4_64(curData3[argIndex], curData2[argIndex],         \
			       curData1[argIndex], curData0[argIndex]))
			XOR_In(Aba, 0);
			XOR_In(Abe, 1);
			XOR_In(Abi, 2);
			XOR_In(Abo, 3);
			XOR_In(Abu, 4);
			XOR_In(Aga, 5);
			XOR_In(Age, 6);
			XOR_In(Agi, 7);
			XOR_In(Ago, 8);
			XOR_In(Agu, 9);
			XOR_In(Aka, 10);
			XOR_In(Ake, 11);
			XOR_In(Aki, 12);
			XOR_In(Ako, 13);
			XOR_In(Aku, 14);
			XOR_In(Ama, 15);
			XOR_In(Ame, 16);
			XOR_In(Ami, 17);
			XOR_In(Amo, 18);
			XOR_In(Amu, 19);
			XOR_In(Asa, 20);
#undef XOR_In

			rounds24 curData0 += laneOffsetSerial;
			curData1 += laneOffsetSerial;
			curData2 += laneOffsetSerial;
			curData3 += laneOffsetSerial;
			dataByteLen -= laneOffsetSerial * 8;
		}
		copyToState(statesAsLanes, A) return (
			size_t)((const unsigned char *)curData0 - dataStart);
#endif
	} else {
		//        unsigned int i;
		const unsigned char *dataStart = data;

		while (dataByteLen >=
		       (laneOffsetParallel * 3 + laneCount) * 8) {
			KeccakP1600times4_AddLanesAll(states, data, laneCount,
						      laneOffsetParallel);
			KeccakP1600times4_PermuteAll_24rounds(states);
			data += laneOffsetSerial * 8;
			dataByteLen -= laneOffsetSerial * 8;
		}
		return (size_t)(data - dataStart);
	}
}

size_t KeccakP1600times4_12rounds_FastLoop_Absorb(
	void *states, unsigned int laneCount, unsigned int laneOffsetParallel,
	unsigned int laneOffsetSerial, const unsigned char *data,
	size_t dataByteLen)
{
	if (laneCount == 21) {
#if 0
		const unsigned char *dataStart = data;
		const uint64_t *curData0 = (const uint64_t *)data;
		const uint64_t *curData1 = (const uint64_t *)(data+laneOffsetParallel*1*SnP_laneLengthInBytes);
		const uint64_t *curData2 = (const uint64_t *)(data+laneOffsetParallel*2*SnP_laneLengthInBytes);
		const uint64_t *curData3 = (const uint64_t *)(data+laneOffsetParallel*3*SnP_laneLengthInBytes);

		while(dataByteLen >= (laneOffsetParallel*3 + laneCount)*8) {
			V256 *stateAsLanes = states;
			V256 lanes0, lanes1, lanes2, lanes3, lanesL01, lanesL23, lanesH01, lanesH23;
#define Xor_In(argIndex)                                                       \
	XOReq256(stateAsLanes[argIndex],                                       \
		 LOAD4_64(curData3[argIndex], curData2[argIndex],              \
			  curData1[argIndex], curData0[argIndex]))
#define Xor_In4(argIndex)                                                      \
	lanes0 = LOAD256u(curData0[argIndex]),                                 \
	lanes1 = LOAD256u(curData1[argIndex]),                                 \
	lanes2 = LOAD256u(curData2[argIndex]),                                 \
	lanes3 = LOAD256u(curData3[argIndex]), INTLEAVE(),                     \
	XOReq256(stateAsLanes[argIndex + 0], lanes0),                          \
	XOReq256(stateAsLanes[argIndex + 1], lanes1),                          \
	XOReq256(stateAsLanes[argIndex + 2], lanes2),                          \
	XOReq256(stateAsLanes[argIndex + 3], lanes3)
			Xor_In4( 0 );
			Xor_In4( 4 );
			Xor_In4( 8 );
			Xor_In4( 12 );
			Xor_In4( 16 );
			Xor_In( 20 );
#undef Xor_In
#undef Xor_In4
			KeccakP1600times4_PermuteAll_12rounds(states);
			curData0 += laneOffsetSerial;
			curData1 += laneOffsetSerial;
			curData2 += laneOffsetSerial;
			curData3 += laneOffsetSerial;
			dataByteLen -= laneOffsetSerial*8;
		}
		return (const unsigned char *)curData0 - dataStart;
#else
		//        unsigned int i;
		const unsigned char *dataStart = data;
		const uint64_t *curData0 = (const uint64_t *)data;
		const uint64_t *curData1 =
			(const uint64_t *)(data +
					   laneOffsetParallel * 1 *
						   SnP_laneLengthInBytes);
		const uint64_t *curData2 =
			(const uint64_t *)(data +
					   laneOffsetParallel * 2 *
						   SnP_laneLengthInBytes);
		const uint64_t *curData3 =
			(const uint64_t *)(data +
					   laneOffsetParallel * 3 *
						   SnP_laneLengthInBytes);
		V256 *statesAsLanes = states;
		declareABCDE

		copyFromState(A, statesAsLanes) while (
			dataByteLen >= (laneOffsetParallel * 3 + laneCount) * 8)
		{
#define XOR_In(Xxx, argIndex)                                                  \
	XOReq256(Xxx, LOAD4_64(curData3[argIndex], curData2[argIndex],         \
			       curData1[argIndex], curData0[argIndex]))
			XOR_In(Aba, 0);
			XOR_In(Abe, 1);
			XOR_In(Abi, 2);
			XOR_In(Abo, 3);
			XOR_In(Abu, 4);
			XOR_In(Aga, 5);
			XOR_In(Age, 6);
			XOR_In(Agi, 7);
			XOR_In(Ago, 8);
			XOR_In(Agu, 9);
			XOR_In(Aka, 10);
			XOR_In(Ake, 11);
			XOR_In(Aki, 12);
			XOR_In(Ako, 13);
			XOR_In(Aku, 14);
			XOR_In(Ama, 15);
			XOR_In(Ame, 16);
			XOR_In(Ami, 17);
			XOR_In(Amo, 18);
			XOR_In(Amu, 19);
			XOR_In(Asa, 20);
#undef XOR_In

			rounds12 curData0 += laneOffsetSerial;
			curData1 += laneOffsetSerial;
			curData2 += laneOffsetSerial;
			curData3 += laneOffsetSerial;
			dataByteLen -= laneOffsetSerial * 8;
		}
		copyToState(statesAsLanes, A) return (
			size_t)((const unsigned char *)curData0 - dataStart);
#endif
	} else {
		//        unsigned int i;
		const unsigned char *dataStart = data;

		while (dataByteLen >=
		       (laneOffsetParallel * 3 + laneCount) * 8) {
			KeccakP1600times4_AddLanesAll(states, data, laneCount,
						      laneOffsetParallel);
			KeccakP1600times4_PermuteAll_12rounds(states);
			data += laneOffsetSerial * 8;
			dataByteLen -= laneOffsetSerial * 8;
		}
		return (size_t)(data - dataStart);
	}
}

#pragma GCC diagnostic pop
