/*
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Copyright (c) 2012, Intel Corporation
;
; All rights reserved.
;
; Redistribution and use in source and binary forms, with or without
; modification, are permitted provided that the following conditions are
; met:
;
; * Redistributions of source code must retain the above copyright
; notice, this list of conditions and the following disclaimer.
;
; * Redistributions in binary form must reproduce the above copyright
; notice, this list of conditions and the following disclaimer in the
; documentation and/or other materials provided with the
; distribution.
;
; * Neither the name of the Intel Corporation nor the names of its
; contributors may be used to endorse or promote products derived from
; this software without specific prior written permission.
;
;
; THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION "AS IS" AND ANY
; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
; PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR
; CONTRIBUTORS 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 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;
; This code is described in an Intel White-Paper:
; "Fast SHA-256 Implementations on Intel Architecture Processors"
;
; To find it, surf to http://www.intel.com/p/en_US/embedded
; and search for that title.
; The paper is expected to be released roughly at the end of April, 2012
;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; This code schedules 1 blocks at a time, with 4 lanes per block
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
*/
/*
* Conversion to GAS assembly and integration to libgcrypt
* by Jussi Kivilinna <jussi.kivilinna@iki.fi>
*
* Note: Based on the SSSE3 implementation.
*/
#ifdef __x86_64
#include <config.h>
#if (defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \
defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS)) && \
defined(HAVE_INTEL_SYNTAX_PLATFORM_AS) && \
defined(HAVE_GCC_INLINE_ASM_AVX) && defined(USE_SHA256)
#ifdef __PIC__
# define ADD_RIP +rip
#else
# define ADD_RIP
#endif
#ifdef HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS
# define ELF(...) __VA_ARGS__
#else
# define ELF(...) /*_*/
#endif
.intel_syntax noprefix
#define VMOVDQ vmovdqu /* assume buffers not aligned */
.macro ROR p1 p2
/* shld is faster than ror on Intel Sandybridge */
shld \p1, \p1, (32 - \p2)
.endm
/*;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Define Macros*/
/* addm [mem], reg
* Add reg to mem using reg-mem add and store */
.macro addm p1 p2
add \p2, \p1
mov \p1, \p2
.endm
/*;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;*/
/* COPY_XMM_AND_BSWAP xmm, [mem], byte_flip_mask
* Load xmm with mem and byte swap each dword */
.macro COPY_XMM_AND_BSWAP p1 p2 p3
VMOVDQ \p1, \p2
vpshufb \p1, \p1, \p3
.endm
/*;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;*/
X0 = xmm4
X1 = xmm5
X2 = xmm6
X3 = xmm7
XTMP0 = xmm0
XTMP1 = xmm1
XTMP2 = xmm2
XTMP3 = xmm3
XTMP4 = xmm8
XFER = xmm9
SHUF_00BA = xmm10 /* shuffle xBxA -> 00BA */
SHUF_DC00 = xmm11 /* shuffle xDxC -> DC00 */
BYTE_FLIP_MASK = xmm12
NUM_BLKS = rdx /* 3rd arg */
CTX = rsi /* 2nd arg */
INP = rdi /* 1st arg */
SRND = rdi /* clobbers INP */
c = ecx
d = r8d
e = edx
TBL = rbp
a = eax
b = ebx
f = r9d
g = r10d
h = r11d
y0 = r13d
y1 = r14d
y2 = r15d
#define _INP_END_SIZE 8
#define _INP_SIZE 8
#define _XFER_SIZE 8
#define _XMM_SAVE_SIZE 0
/* STACK_SIZE plus pushes must be an odd multiple of 8 */
#define _ALIGN_SIZE 8
#define _INP_END 0
#define _INP (_INP_END + _INP_END_SIZE)
#define _XFER (_INP + _INP_SIZE)
#define _XMM_SAVE (_XFER + _XFER_SIZE + _ALIGN_SIZE)
#define STACK_SIZE (_XMM_SAVE + _XMM_SAVE_SIZE)
/* rotate_Xs
* Rotate values of symbols X0...X3 */
.macro rotate_Xs
X_ = X0
X0 = X1
X1 = X2
X2 = X3
X3 = X_
.endm
/* ROTATE_ARGS
* Rotate values of symbols a...h */
.macro ROTATE_ARGS
TMP_ = h
h = g
g = f
f = e
e = d
d = c
c = b
b = a
a = TMP_
.endm
.macro FOUR_ROUNDS_AND_SCHED
/* compute s0 four at a time and s1 two at a time
* compute W[-16] + W[-7] 4 at a time */
mov y0, e /* y0 = e */
ROR y0, (25-11) /* y0 = e >> (25-11) */
mov y1, a /* y1 = a */
vpalignr XTMP0, X3, X2, 4 /* XTMP0 = W[-7] */
ROR y1, (22-13) /* y1 = a >> (22-13) */
xor y0, e /* y0 = e ^ (e >> (25-11)) */
mov y2, f /* y2 = f */
ROR y0, (11-6) /* y0 = (e >> (11-6)) ^ (e >> (25-6)) */
xor y1, a /* y1 = a ^ (a >> (22-13) */
xor y2, g /* y2 = f^g */
vpaddd XTMP0, XTMP0, X0 /* XTMP0 = W[-7] + W[-16] */
xor y0, e /* y0 = e ^ (e >> (11-6)) ^ (e >> (25-6)) */
and y2, e /* y2 = (f^g)&e */
ROR y1, (13-2) /* y1 = (a >> (13-2)) ^ (a >> (22-2)) */
/* compute s0 */
vpalignr XTMP1, X1, X0, 4 /* XTMP1 = W[-15] */
xor y1, a /* y1 = a ^ (a >> (13-2)) ^ (a >> (22-2)) */
ROR y0, 6 /* y0 = S1 = (e>>6) & (e>>11) ^ (e>>25) */
xor y2, g /* y2 = CH = ((f^g)&e)^g */
ROR y1, 2 /* y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22) */
add y2, y0 /* y2 = S1 + CH */
add y2, [rsp + _XFER + 0*4] /* y2 = k + w + S1 + CH */
mov y0, a /* y0 = a */
add h, y2 /* h = h + S1 + CH + k + w */
mov y2, a /* y2 = a */
vpslld XTMP2, XTMP1, (32-7)
or y0, c /* y0 = a|c */
add d, h /* d = d + h + S1 + CH + k + w */
and y2, c /* y2 = a&c */
vpsrld XTMP3, XTMP1, 7
and y0, b /* y0 = (a|c)&b */
add h, y1 /* h = h + S1 + CH + k + w + S0 */
vpor XTMP3, XTMP3, XTMP2 /* XTMP1 = W[-15] ror 7 */
or y0, y2 /* y0 = MAJ = (a|c)&b)|(a&c) */
lea h, [h + y0] /* h = h + S1 + CH + k + w + S0 + MAJ */
ROTATE_ARGS
mov y0, e /* y0 = e */
mov y1, a /* y1 = a */
ROR y0, (25-11) /* y0 = e >> (25-11) */
xor y0, e /* y0 = e ^ (e >> (25-11)) */
mov y2, f /* y2 = f */
ROR y1, (22-13) /* y1 = a >> (22-13) */
vpslld XTMP2, XTMP1, (32-18)
xor y1, a /* y1 = a ^ (a >> (22-13) */
ROR y0, (11-6) /* y0 = (e >> (11-6)) ^ (e >> (25-6)) */
xor y2, g /* y2 = f^g */
vpsrld XTMP4, XTMP1, 18
ROR y1, (13-2) /* y1 = (a >> (13-2)) ^ (a >> (22-2)) */
xor y0, e /* y0 = e ^ (e >> (11-6)) ^ (e >> (25-6)) */
and y2, e /* y2 = (f^g)&e */
ROR y0, 6 /* y0 = S1 = (e>>6) & (e>>11) ^ (e>>25) */
vpxor XTMP4, XTMP4, XTMP3
xor y1, a /* y1 = a ^ (a >> (13-2)) ^ (a >> (22-2)) */
xor y2, g /* y2 = CH = ((f^g)&e)^g */
vpsrld XTMP1, XTMP1, 3 /* XTMP4 = W[-15] >> 3 */
add y2, y0 /* y2 = S1 + CH */
add y2, [rsp + _XFER + 1*4] /* y2 = k + w + S1 + CH */
ROR y1, 2 /* y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22) */
vpxor XTMP1, XTMP1, XTMP2 /* XTMP1 = W[-15] ror 7 ^ W[-15] ror 18 */
mov y0, a /* y0 = a */
add h, y2 /* h = h + S1 + CH + k + w */
mov y2, a /* y2 = a */
vpxor XTMP1, XTMP1, XTMP4 /* XTMP1 = s0 */
or y0, c /* y0 = a|c */
add d, h /* d = d + h + S1 + CH + k + w */
and y2, c /* y2 = a&c */
/* compute low s1 */
vpshufd XTMP2, X3, 0b11111010 /* XTMP2 = W[-2] {BBAA} */
and y0, b /* y0 = (a|c)&b */
add h, y1 /* h = h + S1 + CH + k + w + S0 */
vpaddd XTMP0, XTMP0, XTMP1 /* XTMP0 = W[-16] + W[-7] + s0 */
or y0, y2 /* y0 = MAJ = (a|c)&b)|(a&c) */
lea h, [h + y0] /* h = h + S1 + CH + k + w + S0 + MAJ */
ROTATE_ARGS
mov y0, e /* y0 = e */
mov y1, a /* y1 = a */
ROR y0, (25-11) /* y0 = e >> (25-11) */
xor y0, e /* y0 = e ^ (e >> (25-11)) */
ROR y1, (22-13) /* y1 = a >> (22-13) */
mov y2, f /* y2 = f */
xor y1, a /* y1 = a ^ (a >> (22-13) */
ROR y0, (11-6) /* y0 = (e >> (11-6)) ^ (e >> (25-6)) */
vpsrlq XTMP3, XTMP2, 17 /* XTMP2 = W[-2] ror 17 {xBxA} */
xor y2, g /* y2 = f^g */
vpsrlq XTMP4, XTMP2, 19 /* XTMP3 = W[-2] ror 19 {xBxA} */
xor y0, e /* y0 = e ^ (e >> (11-6)) ^ (e >> (25-6)) */
and y2, e /* y2 = (f^g)&e */
vpsrld XTMP2, XTMP2, 10 /* XTMP4 = W[-2] >> 10 {BBAA} */
ROR y1, (13-2) /* y1 = (a >> (13-2)) ^ (a >> (22-2)) */
xor y1, a /* y1 = a ^ (a >> (13-2)) ^ (a >> (22-2)) */
xor y2, g /* y2 = CH = ((f^g)&e)^g */
ROR y0, 6 /* y0 = S1 = (e>>6) & (e>>11) ^ (e>>25) */
vpxor XTMP2, XTMP2, XTMP3
add y2, y0 /* y2 = S1 + CH */
ROR y1, 2 /* y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22) */
add y2, [rsp + _XFER + 2*4] /* y2 = k + w + S1 + CH */
vpxor XTMP4, XTMP4, XTMP2 /* XTMP4 = s1 {xBxA} */
mov y0, a /* y0 = a */
add h, y2 /* h = h + S1 + CH + k + w */
mov y2, a /* y2 = a */
vpshufb XTMP4, XTMP4, SHUF_00BA /* XTMP4 = s1 {00BA} */
or y0, c /* y0 = a|c */
add d, h /* d = d + h + S1 + CH + k + w */
and y2, c /* y2 = a&c */
vpaddd XTMP0, XTMP0, XTMP4 /* XTMP0 = {..., ..., W[1], W[0]} */
and y0, b /* y0 = (a|c)&b */
add h, y1 /* h = h + S1 + CH + k + w + S0 */
/* compute high s1 */
vpshufd XTMP2, XTMP0, 0b01010000 /* XTMP2 = W[-2] {DDCC} */
or y0, y2 /* y0 = MAJ = (a|c)&b)|(a&c) */
lea h, [h + y0] /* h = h + S1 + CH + k + w + S0 + MAJ */
ROTATE_ARGS
mov y0, e /* y0 = e */
ROR y0, (25-11) /* y0 = e >> (25-11) */
mov y1, a /* y1 = a */
ROR y1, (22-13) /* y1 = a >> (22-13) */
xor y0, e /* y0 = e ^ (e >> (25-11)) */
mov y2, f /* y2 = f */
ROR y0, (11-6) /* y0 = (e >> (11-6)) ^ (e >> (25-6)) */
vpsrlq XTMP3, XTMP2, 17 /* XTMP2 = W[-2] ror 17 {xDxC} */
xor y1, a /* y1 = a ^ (a >> (22-13) */
xor y2, g /* y2 = f^g */
vpsrlq X0, XTMP2, 19 /* XTMP3 = W[-2] ror 19 {xDxC} */
xor y0, e /* y0 = e ^ (e >> (11-6)) ^ (e >> (25-6)) */
and y2, e /* y2 = (f^g)&e */
ROR y1, (13-2) /* y1 = (a >> (13-2)) ^ (a >> (22-2)) */
vpsrld XTMP2, XTMP2, 10 /* X0 = W[-2] >> 10 {DDCC} */
xor y1, a /* y1 = a ^ (a >> (13-2)) ^ (a >> (22-2)) */
ROR y0, 6 /* y0 = S1 = (e>>6) & (e>>11) ^ (e>>25) */
xor y2, g /* y2 = CH = ((f^g)&e)^g */
vpxor XTMP2, XTMP2, XTMP3
ROR y1, 2 /* y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22) */
add y2, y0 /* y2 = S1 + CH */
add y2, [rsp + _XFER + 3*4] /* y2 = k + w + S1 + CH */
vpxor X0, X0, XTMP2 /* X0 = s1 {xDxC} */
mov y0, a /* y0 = a */
add h, y2 /* h = h + S1 + CH + k + w */
mov y2, a /* y2 = a */
vpshufb X0, X0, SHUF_DC00 /* X0 = s1 {DC00} */
or y0, c /* y0 = a|c */
add d, h /* d = d + h + S1 + CH + k + w */
and y2, c /* y2 = a&c */
vpaddd X0, X0, XTMP0 /* X0 = {W[3], W[2], W[1], W[0]} */
and y0, b /* y0 = (a|c)&b */
add h, y1 /* h = h + S1 + CH + k + w + S0 */
or y0, y2 /* y0 = MAJ = (a|c)&b)|(a&c) */
lea h, [h + y0] /* h = h + S1 + CH + k + w + S0 + MAJ */
ROTATE_ARGS
rotate_Xs
.endm
/* input is [rsp + _XFER + %1 * 4] */
.macro DO_ROUND i1
mov y0, e /* y0 = e */
ROR y0, (25-11) /* y0 = e >> (25-11) */
mov y1, a /* y1 = a */
xor y0, e /* y0 = e ^ (e >> (25-11)) */
ROR y1, (22-13) /* y1 = a >> (22-13) */
mov y2, f /* y2 = f */
xor y1, a /* y1 = a ^ (a >> (22-13) */
ROR y0, (11-6) /* y0 = (e >> (11-6)) ^ (e >> (25-6)) */
xor y2, g /* y2 = f^g */
xor y0, e /* y0 = e ^ (e >> (11-6)) ^ (e >> (25-6)) */
ROR y1, (13-2) /* y1 = (a >> (13-2)) ^ (a >> (22-2)) */
and y2, e /* y2 = (f^g)&e */
xor y1, a /* y1 = a ^ (a >> (13-2)) ^ (a >> (22-2)) */
ROR y0, 6 /* y0 = S1 = (e>>6) & (e>>11) ^ (e>>25) */
xor y2, g /* y2 = CH = ((f^g)&e)^g */
add y2, y0 /* y2 = S1 + CH */
ROR y1, 2 /* y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22) */
add y2, [rsp + _XFER + \i1 * 4] /* y2 = k + w + S1 + CH */
mov y0, a /* y0 = a */
add h, y2 /* h = h + S1 + CH + k + w */
mov y2, a /* y2 = a */
or y0, c /* y0 = a|c */
add d, h /* d = d + h + S1 + CH + k + w */
and y2, c /* y2 = a&c */
and y0, b /* y0 = (a|c)&b */
add h, y1 /* h = h + S1 + CH + k + w + S0 */
or y0, y2 /* y0 = MAJ = (a|c)&b)|(a&c) */
lea h, [h + y0] /* h = h + S1 + CH + k + w + S0 + MAJ */
ROTATE_ARGS
.endm
/*
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; void sha256_avx(void *input_data, UINT32 digest[8], UINT64 num_blks)
;; arg 1 : pointer to input data
;; arg 2 : pointer to digest
;; arg 3 : Num blocks
*/
.text
.globl _gcry_sha256_transform_amd64_avx
ELF(.type _gcry_sha256_transform_amd64_avx,@function;)
.align 16
_gcry_sha256_transform_amd64_avx:
vzeroupper
push rbx
push rbp
push r13
push r14
push r15
sub rsp, STACK_SIZE
shl NUM_BLKS, 6 /* convert to bytes */
jz .Ldone_hash
add NUM_BLKS, INP /* pointer to end of data */
mov [rsp + _INP_END], NUM_BLKS
/* load initial digest */
mov a,[4*0 + CTX]
mov b,[4*1 + CTX]
mov c,[4*2 + CTX]
mov d,[4*3 + CTX]
mov e,[4*4 + CTX]
mov f,[4*5 + CTX]
mov g,[4*6 + CTX]
mov h,[4*7 + CTX]
vmovdqa BYTE_FLIP_MASK, [.LPSHUFFLE_BYTE_FLIP_MASK ADD_RIP]
vmovdqa SHUF_00BA, [.L_SHUF_00BA ADD_RIP]
vmovdqa SHUF_DC00, [.L_SHUF_DC00 ADD_RIP]
.Loop0:
lea TBL, [.LK256 ADD_RIP]
/* byte swap first 16 dwords */
COPY_XMM_AND_BSWAP X0, [INP + 0*16], BYTE_FLIP_MASK
COPY_XMM_AND_BSWAP X1, [INP + 1*16], BYTE_FLIP_MASK
COPY_XMM_AND_BSWAP X2, [INP + 2*16], BYTE_FLIP_MASK
COPY_XMM_AND_BSWAP X3, [INP + 3*16], BYTE_FLIP_MASK
mov [rsp + _INP], INP
/* schedule 48 input dwords, by doing 3 rounds of 16 each */
mov SRND, 3
.align 16
.Loop1:
vpaddd XFER, X0, [TBL + 0*16]
vmovdqa [rsp + _XFER], XFER
FOUR_ROUNDS_AND_SCHED
vpaddd XFER, X0, [TBL + 1*16]
vmovdqa [rsp + _XFER], XFER
FOUR_ROUNDS_AND_SCHED
vpaddd XFER, X0, [TBL + 2*16]
vmovdqa [rsp + _XFER], XFER
FOUR_ROUNDS_AND_SCHED
vpaddd XFER, X0, [TBL + 3*16]
vmovdqa [rsp + _XFER], XFER
add TBL, 4*16
FOUR_ROUNDS_AND_SCHED
sub SRND, 1
jne .Loop1
mov SRND, 2
.Loop2:
vpaddd X0, X0, [TBL + 0*16]
vmovdqa [rsp + _XFER], X0
DO_ROUND 0
DO_ROUND 1
DO_ROUND 2
DO_ROUND 3
vpaddd X1, X1, [TBL + 1*16]
vmovdqa [rsp + _XFER], X1
add TBL, 2*16
DO_ROUND 0
DO_ROUND 1
DO_ROUND 2
DO_ROUND 3
vmovdqa X0, X2
vmovdqa X1, X3
sub SRND, 1
jne .Loop2
addm [4*0 + CTX],a
addm [4*1 + CTX],b
addm [4*2 + CTX],c
addm [4*3 + CTX],d
addm [4*4 + CTX],e
addm [4*5 + CTX],f
addm [4*6 + CTX],g
addm [4*7 + CTX],h
mov INP, [rsp + _INP]
add INP, 64
cmp INP, [rsp + _INP_END]
jne .Loop0
vzeroall
.Ldone_hash:
add rsp, STACK_SIZE
pop r15
pop r14
pop r13
pop rbp
pop rbx
mov eax, STACK_SIZE + 5*8
ret
.align 16
.LK256:
.long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
.long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
.long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
.long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
.long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
.long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
.long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
.long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
.long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
.long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
.long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
.long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
.long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
.long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
.long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
.long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
.LPSHUFFLE_BYTE_FLIP_MASK: .octa 0x0c0d0e0f08090a0b0405060700010203
/* shuffle xBxA -> 00BA */
.L_SHUF_00BA: .octa 0xFFFFFFFFFFFFFFFF0b0a090803020100
/* shuffle xDxC -> DC00 */
.L_SHUF_DC00: .octa 0x0b0a090803020100FFFFFFFFFFFFFFFF
#endif
#endif
