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mirror of https://github.com/openssl/openssl.git synced 2025-04-24 20:51:14 +08:00

Enable x86-64 SHA-512 family optimizations with SHA512 ISA extension

The SHA-256 (SZ=4) and SHA-512 (SZ=8) dispatcher paths have been
separated while keeping the SHA-256 path unmodified.

Due to early constraints in register availability, two 32-bit
`OPENSSL_ia32cap_P` reads have been coalesced into one. As a
consequence, several bit positions used in feature checks have gained a
32 bits offset.

Replaced `test` with `bt` to allow use of 64-bit immediate indices in
CPUID feature checks.

Split the SHA512 BMI2+AVX2+BMI1 dispatcher branch into:
- AVX2+SHA512: high priority, with SHA512 ISA extension
- AVX2+BMI2+BMI1: fallback

The added implementation has its own copy of `K512` without duplicated
elements every 16 bytes. Shuffle indices have been reused from `K512`.

Added binary translators for `vsha512msg1`, `vsha512msg2`,
`vsha512rnds2` for older assemblers.

Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: Paul Dale <ppzgs1@gmail.com>
(Merged from https://github.com/openssl/openssl/pull/26147)
This commit is contained in:
Stanciu, Adrian 2025-02-11 13:14:55 -08:00 committed by Pauli
parent e1eb6fdb3a
commit 196b36f0d0
2 changed files with 376 additions and 20 deletions

@ -50,6 +50,13 @@ OpenSSL 3.6
*Alina Elizarova*
* Enabled x86-64 SHA-512 optimizations with SHA512 ISA Extension.
Optimized digests: `sha384`, `sha512`, `sha512-224`, `sha512-256`.
`openssl speed` shows speedups ranging from 1.6x to 4.5x on
the P-cores of Intel Core Ultra 5 238V.
*Adrian Stanciu*
OpenSSL 3.5
-----------

@ -80,6 +80,10 @@
# March 2014.
#
# Add support for Intel SHA Extensions.
#
# December 2024.
#
# Add support for Intel(R) SHA512 Extensions.
######################################################################
# Current performance in cycles per processed byte (less is better):
@ -276,34 +280,54 @@ $func:
.cfi_startproc
___
$code.=<<___ if ($SZ==4 || $avx);
lea OPENSSL_ia32cap_P(%rip),%r11
mov 0(%r11),%r9d
mov 4(%r11),%r10d
mov 8(%r11),%r11d
lea OPENSSL_ia32cap_P(%rip),%r10
mov 0(%r10),%r9
mov 8(%r10),%r11d
___
$code.=<<___ if ($SZ==4 && $shaext);
test \$`1<<29`,%r11d # check for SHA
jnz _shaext_shortcut
$code.=<<___ if ($SZ==8);
mov 20(%r10),%r10d
___
$code.=<<___ if ($avx && $SZ==8);
test \$`1<<11`,%r10d # check for XOP
jnz .Lxop_shortcut
if ($SZ==4) {
$code.=<<___ if ($shaext);
test \$`1<<29`,%r11d # check for SHA
jnz _shaext_shortcut
___
$code.=<<___ if ($avx>1);
and \$`1<<8|1<<5|1<<3`,%r11d # check for BMI2+AVX2+BMI1
cmp \$`1<<8|1<<5|1<<3`,%r11d
je .Lavx2_shortcut
and \$`1<<8|1<<5|1<<3`,%r11d # check for BMI2+AVX2+BMI1
cmp \$`1<<8|1<<5|1<<3`,%r11d
je .Lavx2_shortcut
___
} else { # $SZ==8
$code.=<<___ if ($avx);
and \$`1<<30`,%r9d # mask "Intel CPU" bit
and \$`1<<28|1<<9`,%r10d # mask AVX and SSSE3 bits
or %r9d,%r10d
cmp \$`1<<28|1<<9|1<<30`,%r10d
je .Lavx_shortcut
bt \$43,%r9 # check for XOP
jc .Lxop_shortcut
___
if ($avx>1) { # $SZ==8 && $avx>1
$code.=<<___;
test \$`1<<5`,%r11d # check for AVX2
jz .Lavx_dispatch
___
$code.=<<___ if ($SZ==8);
test \$`1<<0`,%r10d # AVX2 confirmed, check SHA512
jnz .Lsha512ext_shortcut
___
$code.=<<___;
and \$`1<<8|1<<3`,%r11d # AVX2 confirmed, check BMI2+BMI1
cmp \$`1<<8|1<<3`,%r11d
je .Lavx2_shortcut
___
}}
$code.=<<___ if ($avx);
.Lavx_dispatch: # AVX2 not detected/enabled
mov \$`1<<60|1<<41|1<<30`,%r11 # mask "Intel CPU", AVX, SSSE3
and %r11,%r9
cmp %r11,%r9
je .Lavx_shortcut
___
$code.=<<___ if ($SZ==4);
test \$`1<<9`,%r10d
jnz .Lssse3_shortcut
bt \$41,%r9 # mask SSSE3
jc .Lssse3_shortcut
___
$code.=<<___;
mov %rsp,%rax # copy %rsp
@ -554,6 +578,52 @@ $TABLE:
.quad 0x0001020304050607,0x08090a0b0c0d0e0f
.quad 0x0001020304050607,0x08090a0b0c0d0e0f
.asciz "SHA512 block transform for x86_64, CRYPTOGAMS by <https://github.com/dot-asm>"
# $K512 duplicates data every 16 bytes.
# The Intel(R) SHA512 implementation requires reads of 32 consecutive bytes.
.align 64
.type ${TABLE}_single,\@object
${TABLE}_single:
.quad 0x428a2f98d728ae22, 0x7137449123ef65cd
.quad 0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc
.quad 0x3956c25bf348b538, 0x59f111f1b605d019
.quad 0x923f82a4af194f9b, 0xab1c5ed5da6d8118
.quad 0xd807aa98a3030242, 0x12835b0145706fbe
.quad 0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2
.quad 0x72be5d74f27b896f, 0x80deb1fe3b1696b1
.quad 0x9bdc06a725c71235, 0xc19bf174cf692694
.quad 0xe49b69c19ef14ad2, 0xefbe4786384f25e3
.quad 0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65
.quad 0x2de92c6f592b0275, 0x4a7484aa6ea6e483
.quad 0x5cb0a9dcbd41fbd4, 0x76f988da831153b5
.quad 0x983e5152ee66dfab, 0xa831c66d2db43210
.quad 0xb00327c898fb213f, 0xbf597fc7beef0ee4
.quad 0xc6e00bf33da88fc2, 0xd5a79147930aa725
.quad 0x06ca6351e003826f, 0x142929670a0e6e70
.quad 0x27b70a8546d22ffc, 0x2e1b21385c26c926
.quad 0x4d2c6dfc5ac42aed, 0x53380d139d95b3df
.quad 0x650a73548baf63de, 0x766a0abb3c77b2a8
.quad 0x81c2c92e47edaee6, 0x92722c851482353b
.quad 0xa2bfe8a14cf10364, 0xa81a664bbc423001
.quad 0xc24b8b70d0f89791, 0xc76c51a30654be30
.quad 0xd192e819d6ef5218, 0xd69906245565a910
.quad 0xf40e35855771202a, 0x106aa07032bbd1b8
.quad 0x19a4c116b8d2d0c8, 0x1e376c085141ab53
.quad 0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8
.quad 0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb
.quad 0x5b9cca4f7763e373, 0x682e6ff3d6b2b8a3
.quad 0x748f82ee5defb2fc, 0x78a5636f43172f60
.quad 0x84c87814a1f0ab72, 0x8cc702081a6439ec
.quad 0x90befffa23631e28, 0xa4506cebde82bde9
.quad 0xbef9a3f7b2c67915, 0xc67178f2e372532b
.quad 0xca273eceea26619c, 0xd186b8c721c0c207
.quad 0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178
.quad 0x06f067aa72176fba, 0x0a637dc5a2c898a6
.quad 0x113f9804bef90dae, 0x1b710b35131c471b
.quad 0x28db77f523047d84, 0x32caab7b40c72493
.quad 0x3c9ebe0a15c9bebc, 0x431d67c49c100d4c
.quad 0x4cc5d4becb3e42b6, 0x597f299cfc657e2a
.quad 0x5fcb6fab3ad6faec, 0x6c44198c4a475817
.previous
___
}
@ -2313,6 +2383,256 @@ ___
}}
}}}}}
if ($SZ==8) {
$code.=<<___;
.type ${func}_sha512ext,\@function,3
.align 64
${func}_sha512ext:
.cfi_startproc
endbranch
.Lsha512ext_shortcut:
___
my ($arg_hash,$arg_msg,$arg_num_blks)=("%rdi","%rsi","%rdx");
$code.=<<___;
or $arg_num_blks, $arg_num_blks
je .Lsha512ext_done
___
$code.=<<___ if($win64);
# xmm6:xmm9, xmm11:xmm15 need to be maintained for Windows
# xmm10 not used
sub \$`9*16`,%rsp
.cfi_adjust_cfa_offset \$`9*16`
vmovdqu %xmm6, 16*0(%rsp)
vmovdqu %xmm7, 16*1(%rsp)
vmovdqu %xmm8, 16*2(%rsp)
vmovdqu %xmm9, 16*3(%rsp)
vmovdqu %xmm11,16*4(%rsp)
vmovdqu %xmm12,16*5(%rsp)
vmovdqu %xmm13,16*6(%rsp)
vmovdqu %xmm14,16*7(%rsp)
vmovdqu %xmm15,16*8(%rsp)
___
$code.=<<___;
# reuse shuffle indices from $K512
vbroadcasti128 0x500+$TABLE(%rip),%ymm15
#################################################
# Format of comments describing register contents
#################################################
# ymm0 = ABCD
# A is the most significant word in `ymm0`
# D is the least significant word in `ymm0`
#################################################
# load current hash value and transform
vmovdqu 0x00($arg_hash),%ymm0
vmovdqu 0x20($arg_hash),%ymm1
# ymm0 = DCBA, ymm1 = HGFE
vperm2i128 \$0x20,%ymm1,%ymm0,%ymm2
vperm2i128 \$0x31,%ymm1,%ymm0,%ymm3
# ymm2 = FEBA, ymm3 = HGDC
vpermq \$0x1b,%ymm2,%ymm13
vpermq \$0x1b,%ymm3,%ymm14
# ymm13 = ABEF, ymm14 = CDGH
lea ${TABLE}_single(%rip),%r9
.align 32
.Lsha512ext_block_loop:
vmovdqa %ymm13,%ymm11 # ABEF
vmovdqa %ymm14,%ymm12 # CDGH
# R0 - R3
vmovdqu 0*32($arg_msg),%ymm0
vpshufb %ymm15,%ymm0,%ymm3 # ymm0/ymm3 = W[0..3]
vpaddq 0*32(%r9),%ymm3,%ymm0
vsha512rnds2 %xmm0,%ymm11,%ymm12
vperm2i128 \$0x1,%ymm0,%ymm0,%ymm0
vsha512rnds2 %xmm0,%ymm12,%ymm11
# R4 - R7
vmovdqu 1*32($arg_msg),%ymm0
vpshufb %ymm15,%ymm0,%ymm4 # ymm0/ymm4 = W[4..7]
vpaddq 1*32(%r9),%ymm4,%ymm0
vsha512rnds2 %xmm0,%ymm11,%ymm12
vperm2i128 \$0x1,%ymm0,%ymm0,%ymm0
vsha512rnds2 %xmm0,%ymm12,%ymm11
vsha512msg1 %xmm4,%ymm3 # ymm3 = W[0..3] + S0(W[1..4])
# R8 - R11
vmovdqu 2*32($arg_msg),%ymm0
vpshufb %ymm15,%ymm0,%ymm5 # ymm0/ymm5 = W[8..11]
vpaddq 2*32(%r9),%ymm5,%ymm0
vsha512rnds2 %xmm0,%ymm11,%ymm12
vperm2i128 \$0x1,%ymm0,%ymm0,%ymm0
vsha512rnds2 %xmm0,%ymm12,%ymm11
vsha512msg1 %xmm5,%ymm4 # ymm4 = W[4..7] + S0(W[5..8])
# R12 - R15
vmovdqu 3*32($arg_msg),%ymm0
vpshufb %ymm15,%ymm0,%ymm6 # ymm0/ymm6 = W[12..15]
vpaddq 3*32(%r9),%ymm6,%ymm0
vpermq \$0x1b,%ymm6,%ymm8 # ymm8 = W[12] W[13] W[14] W[15]
vpermq \$0x39,%ymm5,%ymm9 # ymm9 = W[8] W[11] W[10] W[9]
vpblendd \$0x3f,%ymm9,%ymm8,%ymm8 # ymm8 = W[12] W[11] W[10] W[9]
vpaddq %ymm8,%ymm3,%ymm3 # ymm3 = W[0..3] + S0(W[1..4]) + W[9..12]
vsha512msg2 %ymm6,%ymm3 # W[16..19] = ymm3 + S1(W[14..17])
vsha512rnds2 %xmm0,%ymm11,%ymm12
vperm2i128 \$0x1,%ymm0,%ymm0,%ymm0
vsha512rnds2 %xmm0,%ymm12,%ymm11
vsha512msg1 %xmm6,%ymm5 # ymm5 = W[8..11] + S0(W[9..12])
___
# R16 - R63
for($i=4;$i<16;) {
$code.=<<___;
# R16 - R19, R32 - R35, R48 - R51
vpaddq `$i * 32`(%r9),%ymm3,%ymm0
vpermq \$0x1b,%ymm3,%ymm8 # ymm8 = W[16] W[17] W[18] W[19]
vpermq \$0x39,%ymm6,%ymm9 # ymm9 = W[12] W[15] W[14] W[13]
vpblendd \$0x3f,%ymm9,%ymm8,%ymm7 # ymm7 = W[16] W[15] W[14] W[13]
vpaddq %ymm7,%ymm4,%ymm4 # ymm4 = W[4..7] + S0(W[5..8]) + W[13..16]
vsha512msg2 %ymm3,%ymm4 # W[20..23] = ymm4 + S1(W[18..21])
vsha512rnds2 %xmm0,%ymm11,%ymm12
vperm2i128 \$0x1,%ymm0,%ymm0,%ymm0
vsha512rnds2 %xmm0,%ymm12,%ymm11
vsha512msg1 %xmm3,%ymm6 # ymm6 = W[12..15] + S0(W[13..16])
___
$i++;
$code.=<<___;
# R20 - R23, R36 - R39, R52 - R55
vpaddq `$i * 32`(%r9),%ymm4,%ymm0
vpermq \$0x1b,%ymm4,%ymm8 # ymm8 = W[20] W[21] W[22] W[23]
vpermq \$0x39,%ymm3,%ymm9 # ymm9 = W[16] W[19] W[18] W[17]
vpblendd \$0x3f,%ymm9,%ymm8,%ymm7 # ymm7 = W[20] W[19] W[18] W[17]
vpaddq %ymm7,%ymm5,%ymm5 # ymm5 = W[8..11] + S0(W[9..12]) + W[17..20]
vsha512msg2 %ymm4,%ymm5 # W[24..27] = ymm5 + S1(W[22..25])
vsha512rnds2 %xmm0,%ymm11,%ymm12
vperm2i128 \$0x1,%ymm0,%ymm0,%ymm0
vsha512rnds2 %xmm0,%ymm12,%ymm11
vsha512msg1 %xmm4,%ymm3 # ymm3 = W[16..19] + S0(W[17..20])
___
$i++;
$code.=<<___;
# R24 - R27, R40 - R43, R56 - R59
vpaddq `$i * 32`(%r9),%ymm5,%ymm0
vpermq \$0x1b,%ymm5,%ymm8 # ymm8 = W[24] W[25] W[26] W[27]
vpermq \$0x39,%ymm4,%ymm9 # ymm9 = W[20] W[23] W[22] W[21]
vpblendd \$0x3f,%ymm9,%ymm8,%ymm7 # ymm7 = W[24] W[23] W[22] W[21]
vpaddq %ymm7,%ymm6,%ymm6 # ymm6 = W[12..15] + S0(W[13..16]) + W[21..24]
vsha512msg2 %ymm5,%ymm6 # W[28..31] = ymm6 + S1(W[26..29])
vsha512rnds2 %xmm0,%ymm11,%ymm12
vperm2i128 \$0x1,%ymm0,%ymm0,%ymm0
vsha512rnds2 %xmm0,%ymm12,%ymm11
vsha512msg1 %xmm5,%ymm4 # ymm4 = W[20..23] + S0(W[21..24])
___
$i++;
$code.=<<___;
# R28 - R31, R44 - R47, R60 - R63
vpaddq `$i * 32`(%r9),%ymm6,%ymm0
vpermq \$0x1b,%ymm6,%ymm8 # ymm8 = W[28] W[29] W[30] W[31]
vpermq \$0x39,%ymm5,%ymm9 # ymm9 = W[24] W[27] W[26] W[25]
vpblendd \$0x3f,%ymm9,%ymm8,%ymm7 # ymm7 = W[28] W[27] W[26] W[25]
vpaddq %ymm7,%ymm3,%ymm3 # ymm3 = W[16..19] + S0(W[17..20]) + W[25..28]
vsha512msg2 %ymm6,%ymm3 # W[32..35] = ymm3 + S1(W[30..33])
vsha512rnds2 %xmm0,%ymm11,%ymm12
vperm2i128 \$0x1,%ymm0,%ymm0,%ymm0
vsha512rnds2 %xmm0,%ymm12,%ymm11
vsha512msg1 %xmm6,%ymm5 # ymm5 = W[24..27] + S0(W[25..28])
___
$i++;
}
$code.=<<___;
# R64 - R67
vpaddq 16*32(%r9),%ymm3,%ymm0
vpermq \$0x1b,%ymm3,%ymm8 # ymm8 = W[64] W[65] W[66] W[67]
vpermq \$0x39,%ymm6,%ymm9 # ymm9 = W[60] W[63] W[62] W[61]
vpblendd \$0x3f,%ymm9,%ymm8,%ymm7 # ymm7 = W[64] W[63] W[62] W[61]
vpaddq %ymm7,%ymm4,%ymm4 # ymm4 = W[52..55] + S0(W[53..56]) + W[61..64]
vsha512msg2 %ymm3,%ymm4 # W[64..67] = ymm4 + S1(W[62..65])
vsha512rnds2 %xmm0,%ymm11,%ymm12
vperm2i128 \$0x1,%ymm0,%ymm0,%ymm0
vsha512rnds2 %xmm0,%ymm12,%ymm11
vsha512msg1 %xmm3,%ymm6 # ymm6 = W[60..63] + S0(W[61..64])
# R68 - R71
vpaddq 17*32(%r9),%ymm4,%ymm0
vpermq \$0x1b,%ymm4,%ymm8 # ymm8 = W[68] W[69] W[70] W[71]
vpermq \$0x39,%ymm3,%ymm9 # ymm9 = W[64] W[67] W[66] W[65]
vpblendd \$0x3f,%ymm9,%ymm8,%ymm7 # ymm7 = W[68] W[67] W[66] W[65]
vpaddq %ymm7,%ymm5,%ymm5 # ymm5 = W[56..59] + S0(W[57..60]) + W[65..68]
vsha512msg2 %ymm4,%ymm5 # W[68..71] = ymm5 + S1(W[66..69])
vsha512rnds2 %xmm0,%ymm11,%ymm12
vperm2i128 \$0x1,%ymm0,%ymm0,%ymm0
vsha512rnds2 %xmm0,%ymm12,%ymm11
# R72 - R75
vpaddq 18*32(%r9),%ymm5,%ymm0
vpermq \$0x1b,%ymm5,%ymm8 # ymm8 = W[72] W[73] W[74] W[75]
vpermq \$0x39,%ymm4,%ymm9 # ymm9 = W[68] W[71] W[70] W[69]
vpblendd \$0x3f,%ymm9,%ymm8,%ymm7 # ymm7 = W[72] W[71] W[70] W[69]
vpaddq %ymm7,%ymm6,%ymm6 # ymm6 = W[60..63] + S0(W[61..64]) + W[69..72]
vsha512msg2 %ymm5,%ymm6 # W[72..75] = ymm6 + S1(W[70..73])
vsha512rnds2 %xmm0,%ymm11,%ymm12
vperm2i128 \$0x1,%ymm0,%ymm0,%ymm0
vsha512rnds2 %xmm0,%ymm12,%ymm11
# R76 - R79
vpaddq 19*32(%r9),%ymm6,%ymm0
vsha512rnds2 %xmm0,%ymm11,%ymm12
vperm2i128 \$0x1,%ymm0,%ymm0,%ymm0
vsha512rnds2 %xmm0,%ymm12,%ymm11
# update hash value
vpaddq %ymm12,%ymm14,%ymm14
vpaddq %ymm11,%ymm13,%ymm13
add \$`4*32`,$arg_msg
dec $arg_num_blks
jnz .Lsha512ext_block_loop
# store the hash value back in memory
# ymm13 = ABEF
# ymm14 = CDGH
vperm2i128 \$0x31,%ymm14,%ymm13,%ymm1
vperm2i128 \$0x20,%ymm14,%ymm13,%ymm2
vpermq \$0xb1,%ymm1,%ymm1 # ymm1 = DCBA
vpermq \$0xb1,%ymm2,%ymm2 # ymm2 = HGFE
vmovdqu %ymm1,0x00($arg_hash)
vmovdqu %ymm2,0x20($arg_hash)
vzeroupper
___
$code.=<<___ if($win64);
# xmm6:xmm9, xmm11:xmm15 need to be maintained for Windows
# xmm10 not used
vmovdqu 16*0(%rsp),%xmm6
vmovdqu 16*1(%rsp),%xmm7
vmovdqu 16*2(%rsp),%xmm8
vmovdqu 16*3(%rsp),%xmm9
vmovdqu 16*4(%rsp),%xmm11
vmovdqu 16*5(%rsp),%xmm12
vmovdqu 16*6(%rsp),%xmm13
vmovdqu 16*7(%rsp),%xmm14
vmovdqu 16*8(%rsp),%xmm15
add \$`9*16`,%rsp
.cfi_adjust_cfa_offset \$`-9*16`
___
$code.=<<___;
.Lsha512ext_done:
ret
.cfi_endproc
.size ${func}_sha512ext,.-${func}_sha512ext
___
}
# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
# CONTEXT *context,DISPATCHER_CONTEXT *disp)
if ($win64) {
@ -2537,6 +2857,34 @@ $code.=<<___ if ($avx>1);
___
}
sub sha512op {
my $instr = shift;
my $args = shift;
if ($args =~ /^(.+)\s*#/) {
$args = $1; # drop comment and its leading whitespace
}
if (($instr eq "vsha512msg1") && ($args =~ /%xmm(\d{1,2})\s*,\s*%ymm(\d{1,2})/)) {
my $b1 = sprintf("0x%02x", 0x42 | ((1-int($1/8))<<5) | ((1-int($2/8))<<7) );
my $b2 = sprintf("0x%02x", 0xc0 | ($1 & 7) | (($2 & 7)<<3) );
return ".byte 0xc4,".$b1.",0x7f,0xcc,".$b2;
}
elsif (($instr eq "vsha512msg2") && ($args =~ /%ymm(\d{1,2})\s*,\s*%ymm(\d{1,2})/)) {
my $b1 = sprintf("0x%02x", 0x42 | ((1-int($1/8))<<5) | ((1-int($2/8))<<7) );
my $b2 = sprintf("0x%02x", 0xc0 | ($1 & 7) | (($2 & 7)<<3) );
return ".byte 0xc4,".$b1.",0x7f,0xcd,".$b2;
}
elsif (($instr eq "vsha512rnds2") && ($args =~ /%xmm(\d{1,2})\s*,\s*%ymm(\d{1,2})\s*,\s*%ymm(\d{1,2})/)) {
my $b1 = sprintf("0x%02x", 0x42 | ((1-int($1/8))<<5) | ((1-int($3/8))<<7) );
my $b2 = sprintf("0x%02x", 0x07 | (15 - $2 & 15)<<3 );
my $b3 = sprintf("0x%02x", 0xc0 | ($1 & 7) | (($3 & 7)<<3) );
return ".byte 0xc4,".$b1.",".$b2.",0xcb,".$b3;
}
return $instr."\t".$args;
}
sub sha256op38 {
my $instr = shift;
my %opcodelet = (
@ -2557,6 +2905,7 @@ sub sha256op38 {
foreach (split("\n",$code)) {
s/\`([^\`]*)\`/eval $1/geo;
s/\b(vsha512[^\s]*)\s+(.*)/sha512op($1,$2)/geo;
s/\b(sha256[^\s]*)\s+(.*)/sha256op38($1,$2)/geo;
print $_,"\n";