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minio/pkg/utils/crypto/sha512/sha512-avx-asm.S

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########################################################################
# Implement fast SHA-512 with AVX instructions. (x86_64)
#
# Copyright (C) 2013 Intel Corporation.
#
# Authors:
# James Guilford <james.guilford@intel.com>
# Kirk Yap <kirk.s.yap@intel.com>
# David Cote <david.m.cote@intel.com>
# Tim Chen <tim.c.chen@linux.intel.com>
#
# This software is available to you under a choice of one of two
# licenses. You may choose to be licensed under the terms of the GNU
# General Public License (GPL) Version 2, available from the file
# COPYING in the main directory of this source tree, or the
# OpenIB.org BSD license below:
#
# 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.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
#
########################################################################
#
# This code is described in an Intel White-Paper:
# "Fast SHA-512 Implementations on Intel Architecture Processors"
#
# To find it, surf to http://www.intel.com/p/en_US/embedded
# and search for that title.
#
########################################################################
# Using this part of Minio codebase under the license
# Apache License Version 2.0 with modifications
##
#ifdef HAS_AVX
#ifndef ENTRY
#define ENTRY(name) \
.globl name ; \
.align 4,0x90 ; \
name:
#endif
#ifndef END
#define END(name) \
.size name, .-name
#endif
#ifndef ENDPROC
#define ENDPROC(name) \
.type name, @function ; \
END(name)
#endif
#define NUM_INVALID 100
#define TYPE_R32 0
#define TYPE_R64 1
#define TYPE_XMM 2
#define TYPE_INVALID 100
.macro R32_NUM opd r32
\opd = NUM_INVALID
.ifc \r32,%eax
\opd = 0
.endif
.ifc \r32,%ecx
\opd = 1
.endif
.ifc \r32,%edx
\opd = 2
.endif
.ifc \r32,%ebx
\opd = 3
.endif
.ifc \r32,%esp
\opd = 4
.endif
.ifc \r32,%ebp
\opd = 5
.endif
.ifc \r32,%esi
\opd = 6
.endif
.ifc \r32,%edi
\opd = 7
.endif
#ifdef X86_64
.ifc \r32,%r8d
\opd = 8
.endif
.ifc \r32,%r9d
\opd = 9
.endif
.ifc \r32,%r10d
\opd = 10
.endif
.ifc \r32,%r11d
\opd = 11
.endif
.ifc \r32,%r12d
\opd = 12
.endif
.ifc \r32,%r13d
\opd = 13
.endif
.ifc \r32,%r14d
\opd = 14
.endif
.ifc \r32,%r15d
\opd = 15
.endif
#endif
.endm
.macro R64_NUM opd r64
\opd = NUM_INVALID
#ifdef X86_64
.ifc \r64,%rax
\opd = 0
.endif
.ifc \r64,%rcx
\opd = 1
.endif
.ifc \r64,%rdx
\opd = 2
.endif
.ifc \r64,%rbx
\opd = 3
.endif
.ifc \r64,%rsp
\opd = 4
.endif
.ifc \r64,%rbp
\opd = 5
.endif
.ifc \r64,%rsi
\opd = 6
.endif
.ifc \r64,%rdi
\opd = 7
.endif
.ifc \r64,%r8
\opd = 8
.endif
.ifc \r64,%r9
\opd = 9
.endif
.ifc \r64,%r10
\opd = 10
.endif
.ifc \r64,%r11
\opd = 11
.endif
.ifc \r64,%r12
\opd = 12
.endif
.ifc \r64,%r13
\opd = 13
.endif
.ifc \r64,%r14
\opd = 14
.endif
.ifc \r64,%r15
\opd = 15
.endif
#endif
.endm
.macro XMM_NUM opd xmm
\opd = NUM_INVALID
.ifc \xmm,%xmm0
\opd = 0
.endif
.ifc \xmm,%xmm1
\opd = 1
.endif
.ifc \xmm,%xmm2
\opd = 2
.endif
.ifc \xmm,%xmm3
\opd = 3
.endif
.ifc \xmm,%xmm4
\opd = 4
.endif
.ifc \xmm,%xmm5
\opd = 5
.endif
.ifc \xmm,%xmm6
\opd = 6
.endif
.ifc \xmm,%xmm7
\opd = 7
.endif
.ifc \xmm,%xmm8
\opd = 8
.endif
.ifc \xmm,%xmm9
\opd = 9
.endif
.ifc \xmm,%xmm10
\opd = 10
.endif
.ifc \xmm,%xmm11
\opd = 11
.endif
.ifc \xmm,%xmm12
\opd = 12
.endif
.ifc \xmm,%xmm13
\opd = 13
.endif
.ifc \xmm,%xmm14
\opd = 14
.endif
.ifc \xmm,%xmm15
\opd = 15
.endif
.endm
.macro TYPE type reg
R32_NUM reg_type_r32 \reg
R64_NUM reg_type_r64 \reg
XMM_NUM reg_type_xmm \reg
.if reg_type_r64 <> NUM_INVALID
\type = TYPE_R64
.elseif reg_type_r32 <> NUM_INVALID
\type = TYPE_R32
.elseif reg_type_xmm <> NUM_INVALID
\type = TYPE_XMM
.else
\type = TYPE_INVALID
.endif
.endm
.macro PFX_OPD_SIZE
.byte 0x66
.endm
.macro PFX_REX opd1 opd2 W=0
.if ((\opd1 | \opd2) & 8) || \W
.byte 0x40 | ((\opd1 & 8) >> 3) | ((\opd2 & 8) >> 1) | (\W << 3)
.endif
.endm
.macro MODRM mod opd1 opd2
.byte \mod | (\opd1 & 7) | ((\opd2 & 7) << 3)
.endm
.macro PSHUFB_XMM xmm1 xmm2
XMM_NUM pshufb_opd1 \xmm1
XMM_NUM pshufb_opd2 \xmm2
PFX_OPD_SIZE
PFX_REX pshufb_opd1 pshufb_opd2
.byte 0x0f, 0x38, 0x00
MODRM 0xc0 pshufb_opd1 pshufb_opd2
.endm
.macro PCLMULQDQ imm8 xmm1 xmm2
XMM_NUM clmul_opd1 \xmm1
XMM_NUM clmul_opd2 \xmm2
PFX_OPD_SIZE
PFX_REX clmul_opd1 clmul_opd2
.byte 0x0f, 0x3a, 0x44
MODRM 0xc0 clmul_opd1 clmul_opd2
.byte \imm8
.endm
.macro PEXTRD imm8 xmm gpr
R32_NUM extrd_opd1 \gpr
XMM_NUM extrd_opd2 \xmm
PFX_OPD_SIZE
PFX_REX extrd_opd1 extrd_opd2
.byte 0x0f, 0x3a, 0x16
MODRM 0xc0 extrd_opd1 extrd_opd2
.byte \imm8
.endm
.macro MOVQ_R64_XMM opd1 opd2
TYPE movq_r64_xmm_opd1_type \opd1
.if movq_r64_xmm_opd1_type == TYPE_XMM
XMM_NUM movq_r64_xmm_opd1 \opd1
R64_NUM movq_r64_xmm_opd2 \opd2
.else
R64_NUM movq_r64_xmm_opd1 \opd1
XMM_NUM movq_r64_xmm_opd2 \opd2
.endif
PFX_OPD_SIZE
PFX_REX movq_r64_xmm_opd1 movq_r64_xmm_opd2 1
.if movq_r64_xmm_opd1_type == TYPE_XMM
.byte 0x0f, 0x7e
.else
.byte 0x0f, 0x6e
.endif
MODRM 0xc0 movq_r64_xmm_opd1 movq_r64_xmm_opd2
.endm
.text
# Virtual Registers
# ARG1
msg = %rdi
# ARG2
digest = %rsi
# ARG3
msglen = %rdx
T1 = %rcx
T2 = %r8
a_64 = %r9
b_64 = %r10
c_64 = %r11
d_64 = %r12
e_64 = %r13
f_64 = %r14
g_64 = %r15
h_64 = %rbx
tmp0 = %rax
# Local variables (stack frame)
# Message Schedule
W_SIZE = 80*8
# W[t] + K[t] | W[t+1] + K[t+1]
WK_SIZE = 2*8
RSPSAVE_SIZE = 1*8
GPRSAVE_SIZE = 5*8
frame_W = 0
frame_WK = frame_W + W_SIZE
frame_RSPSAVE = frame_WK + WK_SIZE
frame_GPRSAVE = frame_RSPSAVE + RSPSAVE_SIZE
frame_size = frame_GPRSAVE + GPRSAVE_SIZE
# Useful QWORD "arrays" for simpler memory references
# MSG, DIGEST, K_t, W_t are arrays
# WK_2(t) points to 1 of 2 qwords at frame.WK depdending on t being odd/even
# Input message (arg1)
#define MSG(i) 8*i(msg)
# Output Digest (arg2)
#define DIGEST(i) 8*i(digest)
# SHA Constants (static mem)
#define K_t(i) 8*i+K512(%rip)
# Message Schedule (stack frame)
#define W_t(i) 8*i+frame_W(%rsp)
# W[t]+K[t] (stack frame)
#define WK_2(i) 8*((i%2))+frame_WK(%rsp)
.macro RotateState
# Rotate symbols a..h right
TMP = h_64
h_64 = g_64
g_64 = f_64
f_64 = e_64
e_64 = d_64
d_64 = c_64
c_64 = b_64
b_64 = a_64
a_64 = TMP
.endm
.macro RORQ p1 p2
# shld is faster than ror on Sandybridge
shld $(64-\p2), \p1, \p1
.endm
.macro SHA512_Round rnd
# Compute Round %%t
mov f_64, T1 # T1 = f
mov e_64, tmp0 # tmp = e
xor g_64, T1 # T1 = f ^ g
RORQ tmp0, 23 # 41 # tmp = e ror 23
and e_64, T1 # T1 = (f ^ g) & e
xor e_64, tmp0 # tmp = (e ror 23) ^ e
xor g_64, T1 # T1 = ((f ^ g) & e) ^ g = CH(e,f,g)
idx = \rnd
add WK_2(idx), T1 # W[t] + K[t] from message scheduler
RORQ tmp0, 4 # 18 # tmp = ((e ror 23) ^ e) ror 4
xor e_64, tmp0 # tmp = (((e ror 23) ^ e) ror 4) ^ e
mov a_64, T2 # T2 = a
add h_64, T1 # T1 = CH(e,f,g) + W[t] + K[t] + h
RORQ tmp0, 14 # 14 # tmp = ((((e ror23)^e)ror4)^e)ror14 = S1(e)
add tmp0, T1 # T1 = CH(e,f,g) + W[t] + K[t] + S1(e)
mov a_64, tmp0 # tmp = a
xor c_64, T2 # T2 = a ^ c
and c_64, tmp0 # tmp = a & c
and b_64, T2 # T2 = (a ^ c) & b
xor tmp0, T2 # T2 = ((a ^ c) & b) ^ (a & c) = Maj(a,b,c)
mov a_64, tmp0 # tmp = a
RORQ tmp0, 5 # 39 # tmp = a ror 5
xor a_64, tmp0 # tmp = (a ror 5) ^ a
add T1, d_64 # e(next_state) = d + T1
RORQ tmp0, 6 # 34 # tmp = ((a ror 5) ^ a) ror 6
xor a_64, tmp0 # tmp = (((a ror 5) ^ a) ror 6) ^ a
lea (T1, T2), h_64 # a(next_state) = T1 + Maj(a,b,c)
RORQ tmp0, 28 # 28 # tmp = ((((a ror5)^a)ror6)^a)ror28 = S0(a)
add tmp0, h_64 # a(next_state) = T1 + Maj(a,b,c) S0(a)
RotateState
.endm
.macro SHA512_2Sched_2Round_avx rnd
# Compute rounds t-2 and t-1
# Compute message schedule QWORDS t and t+1
# Two rounds are computed based on the values for K[t-2]+W[t-2] and
# K[t-1]+W[t-1] which were previously stored at WK_2 by the message
# scheduler.
# The two new schedule QWORDS are stored at [W_t(t)] and [W_t(t+1)].
# They are then added to their respective SHA512 constants at
# [K_t(t)] and [K_t(t+1)] and stored at dqword [WK_2(t)]
# For brievity, the comments following vectored instructions only refer to
# the first of a pair of QWORDS.
# Eg. XMM4=W[t-2] really means XMM4={W[t-2]|W[t-1]}
# The computation of the message schedule and the rounds are tightly
# stitched to take advantage of instruction-level parallelism.
idx = \rnd - 2
vmovdqa W_t(idx), %xmm4 # XMM4 = W[t-2]
idx = \rnd - 15
vmovdqu W_t(idx), %xmm5 # XMM5 = W[t-15]
mov f_64, T1
vpsrlq $61, %xmm4, %xmm0 # XMM0 = W[t-2]>>61
mov e_64, tmp0
vpsrlq $1, %xmm5, %xmm6 # XMM6 = W[t-15]>>1
xor g_64, T1
RORQ tmp0, 23 # 41
vpsrlq $19, %xmm4, %xmm1 # XMM1 = W[t-2]>>19
and e_64, T1
xor e_64, tmp0
vpxor %xmm1, %xmm0, %xmm0 # XMM0 = W[t-2]>>61 ^ W[t-2]>>19
xor g_64, T1
idx = \rnd
add WK_2(idx), T1#
vpsrlq $8, %xmm5, %xmm7 # XMM7 = W[t-15]>>8
RORQ tmp0, 4 # 18
vpsrlq $6, %xmm4, %xmm2 # XMM2 = W[t-2]>>6
xor e_64, tmp0
mov a_64, T2
add h_64, T1
vpxor %xmm7, %xmm6, %xmm6 # XMM6 = W[t-15]>>1 ^ W[t-15]>>8
RORQ tmp0, 14 # 14
add tmp0, T1
vpsrlq $7, %xmm5, %xmm8 # XMM8 = W[t-15]>>7
mov a_64, tmp0
xor c_64, T2
vpsllq $(64-61), %xmm4, %xmm3 # XMM3 = W[t-2]<<3
and c_64, tmp0
and b_64, T2
vpxor %xmm3, %xmm2, %xmm2 # XMM2 = W[t-2]>>6 ^ W[t-2]<<3
xor tmp0, T2
mov a_64, tmp0
vpsllq $(64-1), %xmm5, %xmm9 # XMM9 = W[t-15]<<63
RORQ tmp0, 5 # 39
vpxor %xmm9, %xmm8, %xmm8 # XMM8 = W[t-15]>>7 ^ W[t-15]<<63
xor a_64, tmp0
add T1, d_64
RORQ tmp0, 6 # 34
xor a_64, tmp0
vpxor %xmm8, %xmm6, %xmm6 # XMM6 = W[t-15]>>1 ^ W[t-15]>>8 ^
# W[t-15]>>7 ^ W[t-15]<<63
lea (T1, T2), h_64
RORQ tmp0, 28 # 28
vpsllq $(64-19), %xmm4, %xmm4 # XMM4 = W[t-2]<<25
add tmp0, h_64
RotateState
vpxor %xmm4, %xmm0, %xmm0 # XMM0 = W[t-2]>>61 ^ W[t-2]>>19 ^
# W[t-2]<<25
mov f_64, T1
vpxor %xmm2, %xmm0, %xmm0 # XMM0 = s1(W[t-2])
mov e_64, tmp0
xor g_64, T1
idx = \rnd - 16
vpaddq W_t(idx), %xmm0, %xmm0 # XMM0 = s1(W[t-2]) + W[t-16]
idx = \rnd - 7
vmovdqu W_t(idx), %xmm1 # XMM1 = W[t-7]
RORQ tmp0, 23 # 41
and e_64, T1
xor e_64, tmp0
xor g_64, T1
vpsllq $(64-8), %xmm5, %xmm5 # XMM5 = W[t-15]<<56
idx = \rnd + 1
add WK_2(idx), T1
vpxor %xmm5, %xmm6, %xmm6 # XMM6 = s0(W[t-15])
RORQ tmp0, 4 # 18
vpaddq %xmm6, %xmm0, %xmm0 # XMM0 = s1(W[t-2]) + W[t-16] + s0(W[t-15])
xor e_64, tmp0
vpaddq %xmm1, %xmm0, %xmm0 # XMM0 = W[t] = s1(W[t-2]) + W[t-7] +
# s0(W[t-15]) + W[t-16]
mov a_64, T2
add h_64, T1
RORQ tmp0, 14 # 14
add tmp0, T1
idx = \rnd
vmovdqa %xmm0, W_t(idx) # Store W[t]
vpaddq K_t(idx), %xmm0, %xmm0 # Compute W[t]+K[t]
vmovdqa %xmm0, WK_2(idx) # Store W[t]+K[t] for next rounds
mov a_64, tmp0
xor c_64, T2
and c_64, tmp0
and b_64, T2
xor tmp0, T2
mov a_64, tmp0
RORQ tmp0, 5 # 39
xor a_64, tmp0
add T1, d_64
RORQ tmp0, 6 # 34
xor a_64, tmp0
lea (T1, T2), h_64
RORQ tmp0, 28 # 28
add tmp0, h_64
RotateState
.endm
########################################################################
# void sha512_transform_avx(const void* M, void* D, u64 L)
# Purpose: Updates the SHA512 digest stored at D with the message stored in M.
# The size of the message pointed to by M must be an integer multiple of SHA512
# message blocks.
# L is the message length in SHA512 blocks
########################################################################
ENTRY(sha512_transform_avx)
cmp $0, msglen
je nowork
# Allocate Stack Space
mov %rsp, %rax
sub $frame_size, %rsp
and $~(0x20 - 1), %rsp
mov %rax, frame_RSPSAVE(%rsp)
# Save GPRs
mov %rbx, frame_GPRSAVE(%rsp)
mov %r12, frame_GPRSAVE +8*1(%rsp)
mov %r13, frame_GPRSAVE +8*2(%rsp)
mov %r14, frame_GPRSAVE +8*3(%rsp)
mov %r15, frame_GPRSAVE +8*4(%rsp)
updateblock:
# Load state variables
mov DIGEST(0), a_64
mov DIGEST(1), b_64
mov DIGEST(2), c_64
mov DIGEST(3), d_64
mov DIGEST(4), e_64
mov DIGEST(5), f_64
mov DIGEST(6), g_64
mov DIGEST(7), h_64
t = 0
.rept 80/2 + 1
# (80 rounds) / (2 rounds/iteration) + (1 iteration)
# +1 iteration because the scheduler leads hashing by 1 iteration
.if t < 2
# BSWAP 2 QWORDS
vmovdqa XMM_QWORD_BSWAP(%rip), %xmm1
vmovdqu MSG(t), %xmm0
vpshufb %xmm1, %xmm0, %xmm0 # BSWAP
vmovdqa %xmm0, W_t(t) # Store Scheduled Pair
vpaddq K_t(t), %xmm0, %xmm0 # Compute W[t]+K[t]
vmovdqa %xmm0, WK_2(t) # Store into WK for rounds
.elseif t < 16
# BSWAP 2 QWORDS# Compute 2 Rounds
vmovdqu MSG(t), %xmm0
vpshufb %xmm1, %xmm0, %xmm0 # BSWAP
SHA512_Round t-2 # Round t-2
vmovdqa %xmm0, W_t(t) # Store Scheduled Pair
vpaddq K_t(t), %xmm0, %xmm0 # Compute W[t]+K[t]
SHA512_Round t-1 # Round t-1
vmovdqa %xmm0, WK_2(t)# Store W[t]+K[t] into WK
.elseif t < 79
# Schedule 2 QWORDS# Compute 2 Rounds
SHA512_2Sched_2Round_avx t
.else
# Compute 2 Rounds
SHA512_Round t-2
SHA512_Round t-1
.endif
t = t+2
.endr
# Update digest
add a_64, DIGEST(0)
add b_64, DIGEST(1)
add c_64, DIGEST(2)
add d_64, DIGEST(3)
add e_64, DIGEST(4)
add f_64, DIGEST(5)
add g_64, DIGEST(6)
add h_64, DIGEST(7)
# Advance to next message block
add $16*8, msg
dec msglen
jnz updateblock
# Restore GPRs
mov frame_GPRSAVE(%rsp), %rbx
mov frame_GPRSAVE +8*1(%rsp), %r12
mov frame_GPRSAVE +8*2(%rsp), %r13
mov frame_GPRSAVE +8*3(%rsp), %r14
mov frame_GPRSAVE +8*4(%rsp), %r15
# Restore Stack Pointer
mov frame_RSPSAVE(%rsp), %rsp
nowork:
ret
ENDPROC(sha512_transform_avx)
########################################################################
### Binary Data
.data
.align 16
# Mask for byte-swapping a couple of qwords in an XMM register using (v)pshufb.
XMM_QWORD_BSWAP:
.octa 0x08090a0b0c0d0e0f0001020304050607
# K[t] used in SHA512 hashing
K512:
.quad 0x428a2f98d728ae22,0x7137449123ef65cd
.quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
.quad 0x3956c25bf348b538,0x59f111f1b605d019
.quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118
.quad 0xd807aa98a3030242,0x12835b0145706fbe
.quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
.quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1
.quad 0x9bdc06a725c71235,0xc19bf174cf692694
.quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3
.quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
.quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483
.quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5
.quad 0x983e5152ee66dfab,0xa831c66d2db43210
.quad 0xb00327c898fb213f,0xbf597fc7beef0ee4
.quad 0xc6e00bf33da88fc2,0xd5a79147930aa725
.quad 0x06ca6351e003826f,0x142929670a0e6e70
.quad 0x27b70a8546d22ffc,0x2e1b21385c26c926
.quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df
.quad 0x650a73548baf63de,0x766a0abb3c77b2a8
.quad 0x81c2c92e47edaee6,0x92722c851482353b
.quad 0xa2bfe8a14cf10364,0xa81a664bbc423001
.quad 0xc24b8b70d0f89791,0xc76c51a30654be30
.quad 0xd192e819d6ef5218,0xd69906245565a910
.quad 0xf40e35855771202a,0x106aa07032bbd1b8
.quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53
.quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
.quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
.quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
.quad 0x748f82ee5defb2fc,0x78a5636f43172f60
.quad 0x84c87814a1f0ab72,0x8cc702081a6439ec
.quad 0x90befffa23631e28,0xa4506cebde82bde9
.quad 0xbef9a3f7b2c67915,0xc67178f2e372532b
.quad 0xca273eceea26619c,0xd186b8c721c0c207
.quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
.quad 0x06f067aa72176fba,0x0a637dc5a2c898a6
.quad 0x113f9804bef90dae,0x1b710b35131c471b
.quad 0x28db77f523047d84,0x32caab7b40c72493
.quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
.quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a
.quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817
#endif