#! /usr/bin/env perl
# Copyright 2011-2020 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License").  You may not use
# this file except in compliance with the License.  You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html

######################################################################
## Constant-time SSSE3 AES core implementation.
## version 0.1
##
## By Mike Hamburg (Stanford University), 2009
## Public domain.
##
## For details see http://shiftleft.org/papers/vector_aes/ and
## http://crypto.stanford.edu/vpaes/.

######################################################################
# September 2011.
#
# Port vpaes-x86_64.pl as 32-bit "almost" drop-in replacement for
# aes-586.pl. "Almost" refers to the fact that AES_cbc_encrypt
# doesn't handle partial vectors (doesn't have to if called from
# EVP only). "Drop-in" implies that this module doesn't share key
# schedule structure with the original nor does it make assumption
# about its alignment...
#
# Performance summary. aes-586.pl column lists large-block CBC
# encrypt/decrypt/with-hyper-threading-off(*) results in cycles per
# byte processed with 128-bit key, and vpaes-x86.pl column - [also
# large-block CBC] encrypt/decrypt.
#
#		aes-586.pl		vpaes-x86.pl
#
# Core 2(**)	28.1/41.4/18.3		21.9/25.2(***)
# Nehalem	27.9/40.4/18.1		10.2/11.9
# Atom		70.7/92.1/60.1		61.1/75.4(***)
# Silvermont	45.4/62.9/24.1		49.2/61.1(***)
#
# (*)	"Hyper-threading" in the context refers rather to cache shared
#	among multiple cores, than to specifically Intel HTT. As vast
#	majority of contemporary cores share cache, slower code path
#	is common place. In other words "with-hyper-threading-off"
#	results are presented mostly for reference purposes.
#
# (**)	"Core 2" refers to initial 65nm design, a.k.a. Conroe.
#
# (***)	Less impressive improvement on Core 2 and Atom is due to slow
#	pshufb,	yet it's respectable +28%/64%  improvement on Core 2
#	and +15% on Atom (as implied, over "hyper-threading-safe"
#	code path).
#
#						<appro@openssl.org>

$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
push(@INC,"${dir}","${dir}../../perlasm");
require "x86asm.pl";

$output = pop;
open OUT,">$output";
*STDOUT=*OUT;

&asm_init($ARGV[0],$x86only = $ARGV[$#ARGV] eq "386");

$PREFIX="vpaes";

my  ($round, $base, $magic, $key, $const, $inp, $out)=
    ("eax",  "ebx", "ecx",  "edx","ebp",  "esi","edi");

&static_label("_vpaes_consts");
&static_label("_vpaes_schedule_low_round");

&set_label("_vpaes_consts",64);
$k_inv=-0x30;		# inv, inva
	&data_word(0x0D080180,0x0E05060F,0x0A0B0C02,0x04070309);
	&data_word(0x0F0B0780,0x01040A06,0x02050809,0x030D0E0C);

$k_s0F=-0x10;		# s0F
	&data_word(0x0F0F0F0F,0x0F0F0F0F,0x0F0F0F0F,0x0F0F0F0F);

$k_ipt=0x00;		# input transform (lo, hi)
	&data_word(0x5A2A7000,0xC2B2E898,0x52227808,0xCABAE090);
	&data_word(0x317C4D00,0x4C01307D,0xB0FDCC81,0xCD80B1FC);

$k_sb1=0x20;		# sb1u, sb1t
	&data_word(0xCB503E00,0xB19BE18F,0x142AF544,0xA5DF7A6E);
	&data_word(0xFAE22300,0x3618D415,0x0D2ED9EF,0x3BF7CCC1);
$k_sb2=0x40;		# sb2u, sb2t
	&data_word(0x0B712400,0xE27A93C6,0xBC982FCD,0x5EB7E955);
	&data_word(0x0AE12900,0x69EB8840,0xAB82234A,0xC2A163C8);
$k_sbo=0x60;		# sbou, sbot
	&data_word(0x6FBDC700,0xD0D26D17,0xC502A878,0x15AABF7A);
	&data_word(0x5FBB6A00,0xCFE474A5,0x412B35FA,0x8E1E90D1);

$k_mc_forward=0x80;	# mc_forward
	&data_word(0x00030201,0x04070605,0x080B0A09,0x0C0F0E0D);
	&data_word(0x04070605,0x080B0A09,0x0C0F0E0D,0x00030201);
	&data_word(0x080B0A09,0x0C0F0E0D,0x00030201,0x04070605);
	&data_word(0x0C0F0E0D,0x00030201,0x04070605,0x080B0A09);

$k_mc_backward=0xc0;	# mc_backward
	&data_word(0x02010003,0x06050407,0x0A09080B,0x0E0D0C0F);
	&data_word(0x0E0D0C0F,0x02010003,0x06050407,0x0A09080B);
	&data_word(0x0A09080B,0x0E0D0C0F,0x02010003,0x06050407);
	&data_word(0x06050407,0x0A09080B,0x0E0D0C0F,0x02010003);

$k_sr=0x100;		# sr
	&data_word(0x03020100,0x07060504,0x0B0A0908,0x0F0E0D0C);
	&data_word(0x0F0A0500,0x030E0904,0x07020D08,0x0B06010C);
	&data_word(0x0B020900,0x0F060D04,0x030A0108,0x070E050C);
	&data_word(0x070A0D00,0x0B0E0104,0x0F020508,0x0306090C);

$k_rcon=0x140;		# rcon
	&data_word(0xAF9DEEB6,0x1F8391B9,0x4D7C7D81,0x702A9808);

$k_s63=0x150;		# s63: all equal to 0x63 transformed
	&data_word(0x5B5B5B5B,0x5B5B5B5B,0x5B5B5B5B,0x5B5B5B5B);

$k_opt=0x160;		# output transform
	&data_word(0xD6B66000,0xFF9F4929,0xDEBE6808,0xF7974121);
	&data_word(0x50BCEC00,0x01EDBD51,0xB05C0CE0,0xE10D5DB1);

$k_deskew=0x180;	# deskew tables: inverts the sbox's "skew"
	&data_word(0x47A4E300,0x07E4A340,0x5DBEF91A,0x1DFEB95A);
	&data_word(0x83EA6900,0x5F36B5DC,0xF49D1E77,0x2841C2AB);
##
##  Decryption stuff
##  Key schedule constants
##
$k_dksd=0x1a0;		# decryption key schedule: invskew x*D
	&data_word(0xA3E44700,0xFEB91A5D,0x5A1DBEF9,0x0740E3A4);
	&data_word(0xB5368300,0x41C277F4,0xAB289D1E,0x5FDC69EA);
$k_dksb=0x1c0;		# decryption key schedule: invskew x*B
	&data_word(0x8550D500,0x9A4FCA1F,0x1CC94C99,0x03D65386);
	&data_word(0xB6FC4A00,0x115BEDA7,0x7E3482C8,0xD993256F);
$k_dkse=0x1e0;		# decryption key schedule: invskew x*E + 0x63
	&data_word(0x1FC9D600,0xD5031CCA,0x994F5086,0x53859A4C);
	&data_word(0x4FDC7BE8,0xA2319605,0x20B31487,0xCD5EF96A);
$k_dks9=0x200;		# decryption key schedule: invskew x*9
	&data_word(0x7ED9A700,0xB6116FC8,0x82255BFC,0x4AED9334);
	&data_word(0x27143300,0x45765162,0xE9DAFDCE,0x8BB89FAC);

##
##  Decryption stuff
##  Round function constants
##
$k_dipt=0x220;		# decryption input transform
	&data_word(0x0B545F00,0x0F505B04,0x114E451A,0x154A411E);
	&data_word(0x60056500,0x86E383E6,0xF491F194,0x12771772);

$k_dsb9=0x240;		# decryption sbox output *9*u, *9*t
	&data_word(0x9A86D600,0x851C0353,0x4F994CC9,0xCAD51F50);
	&data_word(0xECD74900,0xC03B1789,0xB2FBA565,0x725E2C9E);
$k_dsbd=0x260;		# decryption sbox output *D*u, *D*t
	&data_word(0xE6B1A200,0x7D57CCDF,0x882A4439,0xF56E9B13);
	&data_word(0x24C6CB00,0x3CE2FAF7,0x15DEEFD3,0x2931180D);
$k_dsbb=0x280;		# decryption sbox output *B*u, *B*t
	&data_word(0x96B44200,0xD0226492,0xB0F2D404,0x602646F6);
	&data_word(0xCD596700,0xC19498A6,0x3255AA6B,0xF3FF0C3E);
$k_dsbe=0x2a0;		# decryption sbox output *E*u, *E*t
	&data_word(0x26D4D000,0x46F29296,0x64B4F6B0,0x22426004);
	&data_word(0xFFAAC100,0x0C55A6CD,0x98593E32,0x9467F36B);
$k_dsbo=0x2c0;		# decryption sbox final output
	&data_word(0x7EF94000,0x1387EA53,0xD4943E2D,0xC7AA6DB9);
	&data_word(0x93441D00,0x12D7560F,0xD8C58E9C,0xCA4B8159);
&asciz	("Vector Permutation AES for x86/SSSE3, Mike Hamburg (Stanford University)");
&align	(64);

&function_begin_B("_vpaes_preheat");
	&add	($const,&DWP(0,"esp"));
	&movdqa	("xmm7",&QWP($k_inv,$const));
	&movdqa	("xmm6",&QWP($k_s0F,$const));
	&ret	();
&function_end_B("_vpaes_preheat");

##
##  _aes_encrypt_core
##
##  AES-encrypt %xmm0.
##
##  Inputs:
##     %xmm0 = input
##     %xmm6-%xmm7 as in _vpaes_preheat
##    (%edx) = scheduled keys
##
##  Output in %xmm0
##  Clobbers  %xmm1-%xmm5, %eax, %ebx, %ecx, %edx
##
##
&function_begin_B("_vpaes_encrypt_core");
	&mov	($magic,16);
	&mov	($round,&DWP(240,$key));
	&movdqa	("xmm1","xmm6")
	&movdqa	("xmm2",&QWP($k_ipt,$const));
	&pandn	("xmm1","xmm0");
	&pand	("xmm0","xmm6");
	&movdqu	("xmm5",&QWP(0,$key));
	&pshufb	("xmm2","xmm0");
	&movdqa	("xmm0",&QWP($k_ipt+16,$const));
	&pxor	("xmm2","xmm5");
	&psrld	("xmm1",4);
	&add	($key,16);
	&pshufb	("xmm0","xmm1");
	&lea	($base,&DWP($k_mc_backward,$const));
	&pxor	("xmm0","xmm2");
	&jmp	(&label("enc_entry"));

&set_label("enc_loop",16);
	# middle of middle round
	&movdqa	("xmm4",&QWP($k_sb1,$const));	# 4 : sb1u
	&movdqa	("xmm0",&QWP($k_sb1+16,$const));# 0 : sb1t
	&pshufb	("xmm4","xmm2");		# 4 = sb1u
	&pshufb	("xmm0","xmm3");		# 0 = sb1t
	&pxor	("xmm4","xmm5");		# 4 = sb1u + k
	&movdqa	("xmm5",&QWP($k_sb2,$const));	# 4 : sb2u
	&pxor	("xmm0","xmm4");		# 0 = A
	&movdqa	("xmm1",&QWP(-0x40,$base,$magic));# .Lk_mc_forward[]
	&pshufb	("xmm5","xmm2");		# 4 = sb2u
	&movdqa	("xmm2",&QWP($k_sb2+16,$const));# 2 : sb2t
	&movdqa	("xmm4",&QWP(0,$base,$magic));	# .Lk_mc_backward[]
	&pshufb	("xmm2","xmm3");		# 2 = sb2t
	&movdqa	("xmm3","xmm0");		# 3 = A
	&pxor	("xmm2","xmm5");		# 2 = 2A
	&pshufb	("xmm0","xmm1");		# 0 = B
	&add	($key,16);			# next key
	&pxor	("xmm0","xmm2");		# 0 = 2A+B
	&pshufb	("xmm3","xmm4");		# 3 = D
	&add	($magic,16);			# next mc
	&pxor	("xmm3","xmm0");		# 3 = 2A+B+D
	&pshufb	("xmm0","xmm1");		# 0 = 2B+C
	&and	($magic,0x30);			# ... mod 4
	&sub	($round,1);			# nr--
	&pxor	("xmm0","xmm3");		# 0 = 2A+3B+C+D

&set_label("enc_entry");
	# top of round
	&movdqa	("xmm1","xmm6");		# 1 : i
	&movdqa	("xmm5",&QWP($k_inv+16,$const));# 2 : a/k
	&pandn	("xmm1","xmm0");		# 1 = i<<4
	&psrld	("xmm1",4);			# 1 = i
	&pand	("xmm0","xmm6");		# 0 = k
	&pshufb	("xmm5","xmm0");		# 2 = a/k
	&movdqa	("xmm3","xmm7");		# 3 : 1/i
	&pxor	("xmm0","xmm1");		# 0 = j
	&pshufb	("xmm3","xmm1");		# 3 = 1/i
	&movdqa	("xmm4","xmm7");		# 4 : 1/j
	&pxor	("xmm3","xmm5");		# 3 = iak = 1/i + a/k
	&pshufb	("xmm4","xmm0");		# 4 = 1/j
	&movdqa	("xmm2","xmm7");		# 2 : 1/iak
	&pxor	("xmm4","xmm5");		# 4 = jak = 1/j + a/k
	&pshufb	("xmm2","xmm3");		# 2 = 1/iak
	&movdqa	("xmm3","xmm7");		# 3 : 1/jak
	&pxor	("xmm2","xmm0");		# 2 = io
	&pshufb	("xmm3","xmm4");		# 3 = 1/jak
	&movdqu	("xmm5",&QWP(0,$key));
	&pxor	("xmm3","xmm1");		# 3 = jo
	&jnz	(&label("enc_loop"));

	# middle of last round
	&movdqa	("xmm4",&QWP($k_sbo,$const));	# 3 : sbou      .Lk_sbo
	&movdqa	("xmm0",&QWP($k_sbo+16,$const));# 3 : sbot      .Lk_sbo+16
	&pshufb	("xmm4","xmm2");		# 4 = sbou
	&pxor	("xmm4","xmm5");		# 4 = sb1u + k
	&pshufb	("xmm0","xmm3");		# 0 = sb1t
	&movdqa	("xmm1",&QWP(0x40,$base,$magic));# .Lk_sr[]
	&pxor	("xmm0","xmm4");		# 0 = A
	&pshufb	("xmm0","xmm1");
	&ret	();
&function_end_B("_vpaes_encrypt_core");

##
##  Decryption core
##
##  Same API as encryption core.
##
&function_begin_B("_vpaes_decrypt_core");
	&lea	($base,&DWP($k_dsbd,$const));
	&mov	($round,&DWP(240,$key));
	&movdqa	("xmm1","xmm6");
	&movdqa	("xmm2",&QWP($k_dipt-$k_dsbd,$base));
	&pandn	("xmm1","xmm0");
	&mov	($magic,$round);
	&psrld	("xmm1",4)
	&movdqu	("xmm5",&QWP(0,$key));
	&shl	($magic,4);
	&pand	("xmm0","xmm6");
	&pshufb	("xmm2","xmm0");
	&movdqa	("xmm0",&QWP($k_dipt-$k_dsbd+16,$base));
	&xor	($magic,0x30);
	&pshufb	("xmm0","xmm1");
	&and	($magic,0x30);
	&pxor	("xmm2","xmm5");
	&movdqa	("xmm5",&QWP($k_mc_forward+48,$const));
	&pxor	("xmm0","xmm2");
	&add	($key,16);
	&lea	($magic,&DWP($k_sr-$k_dsbd,$base,$magic));
	&jmp	(&label("dec_entry"));

&set_label("dec_loop",16);
##
##  Inverse mix columns
##
	&movdqa	("xmm4",&QWP(-0x20,$base));	# 4 : sb9u
	&movdqa	("xmm1",&QWP(-0x10,$base));	# 0 : sb9t
	&pshufb	("xmm4","xmm2");		# 4 = sb9u
	&pshufb	("xmm1","xmm3");		# 0 = sb9t
	&pxor	("xmm0","xmm4");
	&movdqa	("xmm4",&QWP(0,$base));		# 4 : sbdu
	&pxor	("xmm0","xmm1");		# 0 = ch
	&movdqa	("xmm1",&QWP(0x10,$base));	# 0 : sbdt

	&pshufb	("xmm4","xmm2");		# 4 = sbdu
	&pshufb	("xmm0","xmm5");		# MC ch
	&pshufb	("xmm1","xmm3");		# 0 = sbdt
	&pxor	("xmm0","xmm4");		# 4 = ch
	&movdqa	("xmm4",&QWP(0x20,$base));	# 4 : sbbu
	&pxor	("xmm0","xmm1");		# 0 = ch
	&movdqa	("xmm1",&QWP(0x30,$base));	# 0 : sbbt

	&pshufb	("xmm4","xmm2");		# 4 = sbbu
	&pshufb	("xmm0","xmm5");		# MC ch
	&pshufb	("xmm1","xmm3");		# 0 = sbbt
	&pxor	("xmm0","xmm4");		# 4 = ch
	&movdqa	("xmm4",&QWP(0x40,$base));	# 4 : sbeu
	&pxor	("xmm0","xmm1");		# 0 = ch
	&movdqa	("xmm1",&QWP(0x50,$base));	# 0 : sbet

	&pshufb	("xmm4","xmm2");		# 4 = sbeu
	&pshufb	("xmm0","xmm5");		# MC ch
	&pshufb	("xmm1","xmm3");		# 0 = sbet
	&pxor	("xmm0","xmm4");		# 4 = ch
	&add	($key,16);			# next round key
	&palignr("xmm5","xmm5",12);
	&pxor	("xmm0","xmm1");		# 0 = ch
	&sub	($round,1);			# nr--

&set_label("dec_entry");
	# top of round
	&movdqa	("xmm1","xmm6");		# 1 : i
	&movdqa	("xmm2",&QWP($k_inv+16,$const));# 2 : a/k
	&pandn	("xmm1","xmm0");		# 1 = i<<4
	&pand	("xmm0","xmm6");		# 0 = k
	&psrld	("xmm1",4);			# 1 = i
	&pshufb	("xmm2","xmm0");		# 2 = a/k
	&movdqa	("xmm3","xmm7");		# 3 : 1/i
	&pxor	("xmm0","xmm1");		# 0 = j
	&pshufb	("xmm3","xmm1");		# 3 = 1/i
	&movdqa	("xmm4","xmm7");		# 4 : 1/j
	&pxor	("xmm3","xmm2");		# 3 = iak = 1/i + a/k
	&pshufb	("xmm4","xmm0");		# 4 = 1/j
	&pxor	("xmm4","xmm2");		# 4 = jak = 1/j + a/k
	&movdqa	("xmm2","xmm7");		# 2 : 1/iak
	&pshufb	("xmm2","xmm3");		# 2 = 1/iak
	&movdqa	("xmm3","xmm7");		# 3 : 1/jak
	&pxor	("xmm2","xmm0");		# 2 = io
	&pshufb	("xmm3","xmm4");		# 3 = 1/jak
	&movdqu	("xmm0",&QWP(0,$key));
	&pxor	("xmm3","xmm1");		# 3 = jo
	&jnz	(&label("dec_loop"));

	# middle of last round
	&movdqa	("xmm4",&QWP(0x60,$base));	# 3 : sbou
	&pshufb	("xmm4","xmm2");		# 4 = sbou
	&pxor	("xmm4","xmm0");		# 4 = sb1u + k
	&movdqa	("xmm0",&QWP(0x70,$base));	# 0 : sbot
	&movdqa	("xmm2",&QWP(0,$magic));
	&pshufb	("xmm0","xmm3");		# 0 = sb1t
	&pxor	("xmm0","xmm4");		# 0 = A
	&pshufb	("xmm0","xmm2");
	&ret	();
&function_end_B("_vpaes_decrypt_core");

########################################################
##                                                    ##
##                  AES key schedule                  ##
##                                                    ##
########################################################
&function_begin_B("_vpaes_schedule_core");
	&add	($const,&DWP(0,"esp"));
	&movdqu	("xmm0",&QWP(0,$inp));		# load key (unaligned)
	&movdqa	("xmm2",&QWP($k_rcon,$const));	# load rcon

	# input transform
	&movdqa	("xmm3","xmm0");
	&lea	($base,&DWP($k_ipt,$const));
	&movdqa	(&QWP(4,"esp"),"xmm2");		# xmm8
	&call	("_vpaes_schedule_transform");
	&movdqa	("xmm7","xmm0");

	&test	($out,$out);
	&jnz	(&label("schedule_am_decrypting"));

	# encrypting, output zeroth round key after transform
	&movdqu	(&QWP(0,$key),"xmm0");
	&jmp	(&label("schedule_go"));

&set_label("schedule_am_decrypting");
	# decrypting, output zeroth round key after shiftrows
	&movdqa	("xmm1",&QWP($k_sr,$const,$magic));
	&pshufb	("xmm3","xmm1");
	&movdqu	(&QWP(0,$key),"xmm3");
	&xor	($magic,0x30);

&set_label("schedule_go");
	&cmp	($round,192);
	&ja	(&label("schedule_256"));
	&je	(&label("schedule_192"));
	# 128: fall though

##
##  .schedule_128
##
##  128-bit specific part of key schedule.
##
##  This schedule is really simple, because all its parts
##  are accomplished by the subroutines.
##
&set_label("schedule_128");
	&mov	($round,10);

&set_label("loop_schedule_128");
	&call	("_vpaes_schedule_round");
	&dec	($round);
	&jz	(&label("schedule_mangle_last"));
	&call	("_vpaes_schedule_mangle");	# write output
	&jmp	(&label("loop_schedule_128"));

##
##  .aes_schedule_192
##
##  192-bit specific part of key schedule.
##
##  The main body of this schedule is the same as the 128-bit
##  schedule, but with more smearing.  The long, high side is
##  stored in %xmm7 as before, and the short, low side is in
##  the high bits of %xmm6.
##
##  This schedule is somewhat nastier, however, because each
##  round produces 192 bits of key material, or 1.5 round keys.
##  Therefore, on each cycle we do 2 rounds and produce 3 round
##  keys.
##
&set_label("schedule_192",16);
	&movdqu	("xmm0",&QWP(8,$inp));		# load key part 2 (very unaligned)
	&call	("_vpaes_schedule_transform");	# input transform
	&movdqa	("xmm6","xmm0");		# save short part
	&pxor	("xmm4","xmm4");		# clear 4
	&movhlps("xmm6","xmm4");		# clobber low side with zeros
	&mov	($round,4);

&set_label("loop_schedule_192");
	&call	("_vpaes_schedule_round");
	&palignr("xmm0","xmm6",8);
	&call	("_vpaes_schedule_mangle");	# save key n
	&call	("_vpaes_schedule_192_smear");
	&call	("_vpaes_schedule_mangle");	# save key n+1
	&call	("_vpaes_schedule_round");
	&dec	($round);
	&jz	(&label("schedule_mangle_last"));
	&call	("_vpaes_schedule_mangle");	# save key n+2
	&call	("_vpaes_schedule_192_smear");
	&jmp	(&label("loop_schedule_192"));

##
##  .aes_schedule_256
##
##  256-bit specific part of key schedule.
##
##  The structure here is very similar to the 128-bit
##  schedule, but with an additional "low side" in
##  %xmm6.  The low side's rounds are the same as the
##  high side's, except no rcon and no rotation.
##
&set_label("schedule_256",16);
	&movdqu	("xmm0",&QWP(16,$inp));		# load key part 2 (unaligned)
	&call	("_vpaes_schedule_transform");	# input transform
	&mov	($round,7);

&set_label("loop_schedule_256");
	&call	("_vpaes_schedule_mangle");	# output low result
	&movdqa	("xmm6","xmm0");		# save cur_lo in xmm6

	# high round
	&call	("_vpaes_schedule_round");
	&dec	($round);
	&jz	(&label("schedule_mangle_last"));
	&call	("_vpaes_schedule_mangle");

	# low round. swap xmm7 and xmm6
	&pshufd	("xmm0","xmm0",0xFF);
	&movdqa	(&QWP(20,"esp"),"xmm7");
	&movdqa	("xmm7","xmm6");
	&call	("_vpaes_schedule_low_round");
	&movdqa	("xmm7",&QWP(20,"esp"));

	&jmp	(&label("loop_schedule_256"));

##
##  .aes_schedule_mangle_last
##
##  Mangler for last round of key schedule
##  Mangles %xmm0
##    when encrypting, outputs out(%xmm0) ^ 63
##    when decrypting, outputs unskew(%xmm0)
##
##  Always called right before return... jumps to cleanup and exits
##
&set_label("schedule_mangle_last",16);
	# schedule last round key from xmm0
	&lea	($base,&DWP($k_deskew,$const));
	&test	($out,$out);
	&jnz	(&label("schedule_mangle_last_dec"));

	# encrypting
	&movdqa	("xmm1",&QWP($k_sr,$const,$magic));
	&pshufb	("xmm0","xmm1");		# output permute
	&lea	($base,&DWP($k_opt,$const));	# prepare to output transform
	&add	($key,32);

&set_label("schedule_mangle_last_dec");
	&add	($key,-16);
	&pxor	("xmm0",&QWP($k_s63,$const));
	&call	("_vpaes_schedule_transform");	# output transform
	&movdqu	(&QWP(0,$key),"xmm0");		# save last key

	# cleanup
	&pxor	("xmm0","xmm0");
	&pxor	("xmm1","xmm1");
	&pxor	("xmm2","xmm2");
	&pxor	("xmm3","xmm3");
	&pxor	("xmm4","xmm4");
	&pxor	("xmm5","xmm5");
	&pxor	("xmm6","xmm6");
	&pxor	("xmm7","xmm7");
	&ret	();
&function_end_B("_vpaes_schedule_core");

##
##  .aes_schedule_192_smear
##
##  Smear the short, low side in the 192-bit key schedule.
##
##  Inputs:
##    %xmm7: high side, b  a  x  y
##    %xmm6:  low side, d  c  0  0
##    %xmm13: 0
##
##  Outputs:
##    %xmm6: b+c+d  b+c  0  0
##    %xmm0: b+c+d  b+c  b  a
##
&function_begin_B("_vpaes_schedule_192_smear");
	&pshufd	("xmm1","xmm6",0x80);		# d c 0 0 -> c 0 0 0
	&pshufd	("xmm0","xmm7",0xFE);		# b a _ _ -> b b b a
	&pxor	("xmm6","xmm1");		# -> c+d c 0 0
	&pxor	("xmm1","xmm1");
	&pxor	("xmm6","xmm0");		# -> b+c+d b+c b a
	&movdqa	("xmm0","xmm6");
	&movhlps("xmm6","xmm1");		# clobber low side with zeros
	&ret	();
&function_end_B("_vpaes_schedule_192_smear");

##
##  .aes_schedule_round
##
##  Runs one main round of the key schedule on %xmm0, %xmm7
##
##  Specifically, runs subbytes on the high dword of %xmm0
##  then rotates it by one byte and xors into the low dword of
##  %xmm7.
##
##  Adds rcon from low byte of %xmm8, then rotates %xmm8 for
##  next rcon.
##
##  Smears the dwords of %xmm7 by xoring the low into the
##  second low, result into third, result into highest.
##
##  Returns results in %xmm7 = %xmm0.
##  Clobbers %xmm1-%xmm5.
##
&function_begin_B("_vpaes_schedule_round");
	# extract rcon from xmm8
	&movdqa	("xmm2",&QWP(8,"esp"));		# xmm8
	&pxor	("xmm1","xmm1");
	&palignr("xmm1","xmm2",15);
	&palignr("xmm2","xmm2",15);
	&pxor	("xmm7","xmm1");

	# rotate
	&pshufd	("xmm0","xmm0",0xFF);
	&palignr("xmm0","xmm0",1);

	# fall through...
	&movdqa	(&QWP(8,"esp"),"xmm2");		# xmm8

	# low round: same as high round, but no rotation and no rcon.
&set_label("_vpaes_schedule_low_round");
	# smear xmm7
	&movdqa	("xmm1","xmm7");
	&pslldq	("xmm7",4);
	&pxor	("xmm7","xmm1");
	&movdqa	("xmm1","xmm7");
	&pslldq	("xmm7",8);
	&pxor	("xmm7","xmm1");
	&pxor	("xmm7",&QWP($k_s63,$const));

	# subbyte
	&movdqa	("xmm4",&QWP($k_s0F,$const));
	&movdqa	("xmm5",&QWP($k_inv,$const));	# 4 : 1/j
	&movdqa	("xmm1","xmm4");
	&pandn	("xmm1","xmm0");
	&psrld	("xmm1",4);			# 1 = i
	&pand	("xmm0","xmm4");		# 0 = k
	&movdqa	("xmm2",&QWP($k_inv+16,$const));# 2 : a/k
	&pshufb	("xmm2","xmm0");		# 2 = a/k
	&pxor	("xmm0","xmm1");		# 0 = j
	&movdqa	("xmm3","xmm5");		# 3 : 1/i
	&pshufb	("xmm3","xmm1");		# 3 = 1/i
	&pxor	("xmm3","xmm2");		# 3 = iak = 1/i + a/k
	&movdqa	("xmm4","xmm5");		# 4 : 1/j
	&pshufb	("xmm4","xmm0");		# 4 = 1/j
	&pxor	("xmm4","xmm2");		# 4 = jak = 1/j + a/k
	&movdqa	("xmm2","xmm5");		# 2 : 1/iak
	&pshufb	("xmm2","xmm3");		# 2 = 1/iak
	&pxor	("xmm2","xmm0");		# 2 = io
	&movdqa	("xmm3","xmm5");		# 3 : 1/jak
	&pshufb	("xmm3","xmm4");		# 3 = 1/jak
	&pxor	("xmm3","xmm1");		# 3 = jo
	&movdqa	("xmm4",&QWP($k_sb1,$const));	# 4 : sbou
	&pshufb	("xmm4","xmm2");		# 4 = sbou
	&movdqa	("xmm0",&QWP($k_sb1+16,$const));# 0 : sbot
	&pshufb	("xmm0","xmm3");		# 0 = sb1t
	&pxor	("xmm0","xmm4");		# 0 = sbox output

	# add in smeared stuff
	&pxor	("xmm0","xmm7");
	&movdqa	("xmm7","xmm0");
	&ret	();
&function_end_B("_vpaes_schedule_round");

##
##  .aes_schedule_transform
##
##  Linear-transform %xmm0 according to tables at (%ebx)
##
##  Output in %xmm0
##  Clobbers %xmm1, %xmm2
##
&function_begin_B("_vpaes_schedule_transform");
	&movdqa	("xmm2",&QWP($k_s0F,$const));
	&movdqa	("xmm1","xmm2");
	&pandn	("xmm1","xmm0");
	&psrld	("xmm1",4);
	&pand	("xmm0","xmm2");
	&movdqa	("xmm2",&QWP(0,$base));
	&pshufb	("xmm2","xmm0");
	&movdqa	("xmm0",&QWP(16,$base));
	&pshufb	("xmm0","xmm1");
	&pxor	("xmm0","xmm2");
	&ret	();
&function_end_B("_vpaes_schedule_transform");

##
##  .aes_schedule_mangle
##
##  Mangle xmm0 from (basis-transformed) standard version
##  to our version.
##
##  On encrypt,
##    xor with 0x63
##    multiply by circulant 0,1,1,1
##    apply shiftrows transform
##
##  On decrypt,
##    xor with 0x63
##    multiply by "inverse mixcolumns" circulant E,B,D,9
##    deskew
##    apply shiftrows transform
##
##
##  Writes out to (%edx), and increments or decrements it
##  Keeps track of round number mod 4 in %ecx
##  Preserves xmm0
##  Clobbers xmm1-xmm5
##
&function_begin_B("_vpaes_schedule_mangle");
	&movdqa	("xmm4","xmm0");	# save xmm0 for later
	&movdqa	("xmm5",&QWP($k_mc_forward,$const));
	&test	($out,$out);
	&jnz	(&label("schedule_mangle_dec"));

	# encrypting
	&add	($key,16);
	&pxor	("xmm4",&QWP($k_s63,$const));
	&pshufb	("xmm4","xmm5");
	&movdqa	("xmm3","xmm4");
	&pshufb	("xmm4","xmm5");
	&pxor	("xmm3","xmm4");
	&pshufb	("xmm4","xmm5");
	&pxor	("xmm3","xmm4");

	&jmp	(&label("schedule_mangle_both"));

&set_label("schedule_mangle_dec",16);
	# inverse mix columns
	&movdqa	("xmm2",&QWP($k_s0F,$const));
	&lea	($inp,&DWP($k_dksd,$const));
	&movdqa	("xmm1","xmm2");
	&pandn	("xmm1","xmm4");
	&psrld	("xmm1",4);			# 1 = hi
	&pand	("xmm4","xmm2");		# 4 = lo

	&movdqa	("xmm2",&QWP(0,$inp));
	&pshufb	("xmm2","xmm4");
	&movdqa	("xmm3",&QWP(0x10,$inp));
	&pshufb	("xmm3","xmm1");
	&pxor	("xmm3","xmm2");
	&pshufb	("xmm3","xmm5");

	&movdqa	("xmm2",&QWP(0x20,$inp));
	&pshufb	("xmm2","xmm4");
	&pxor	("xmm2","xmm3");
	&movdqa	("xmm3",&QWP(0x30,$inp));
	&pshufb	("xmm3","xmm1");
	&pxor	("xmm3","xmm2");
	&pshufb	("xmm3","xmm5");

	&movdqa	("xmm2",&QWP(0x40,$inp));
	&pshufb	("xmm2","xmm4");
	&pxor	("xmm2","xmm3");
	&movdqa	("xmm3",&QWP(0x50,$inp));
	&pshufb	("xmm3","xmm1");
	&pxor	("xmm3","xmm2");
	&pshufb	("xmm3","xmm5");

	&movdqa	("xmm2",&QWP(0x60,$inp));
	&pshufb	("xmm2","xmm4");
	&pxor	("xmm2","xmm3");
	&movdqa	("xmm3",&QWP(0x70,$inp));
	&pshufb	("xmm3","xmm1");
	&pxor	("xmm3","xmm2");

	&add	($key,-16);

&set_label("schedule_mangle_both");
	&movdqa	("xmm1",&QWP($k_sr,$const,$magic));
	&pshufb	("xmm3","xmm1");
	&add	($magic,-16);
	&and	($magic,0x30);
	&movdqu	(&QWP(0,$key),"xmm3");
	&ret	();
&function_end_B("_vpaes_schedule_mangle");

#
# Interface to OpenSSL
#
&function_begin("${PREFIX}_set_encrypt_key");
	&mov	($inp,&wparam(0));		# inp
	&lea	($base,&DWP(-56,"esp"));
	&mov	($round,&wparam(1));		# bits
	&and	($base,-16);
	&mov	($key,&wparam(2));		# key
	&xchg	($base,"esp");			# alloca
	&mov	(&DWP(48,"esp"),$base);

	&mov	($base,$round);
	&shr	($base,5);
	&add	($base,5);
	&mov	(&DWP(240,$key),$base);		# AES_KEY->rounds = nbits/32+5;
	&mov	($magic,0x30);
	&mov	($out,0);

	&lea	($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point")));
	&call	("_vpaes_schedule_core");
&set_label("pic_point");

	&mov	("esp",&DWP(48,"esp"));
	&xor	("eax","eax");
&function_end("${PREFIX}_set_encrypt_key");

&function_begin("${PREFIX}_set_decrypt_key");
	&mov	($inp,&wparam(0));		# inp
	&lea	($base,&DWP(-56,"esp"));
	&mov	($round,&wparam(1));		# bits
	&and	($base,-16);
	&mov	($key,&wparam(2));		# key
	&xchg	($base,"esp");			# alloca
	&mov	(&DWP(48,"esp"),$base);

	&mov	($base,$round);
	&shr	($base,5);
	&add	($base,5);
	&mov	(&DWP(240,$key),$base);	# AES_KEY->rounds = nbits/32+5;
	&shl	($base,4);
	&lea	($key,&DWP(16,$key,$base));

	&mov	($out,1);
	&mov	($magic,$round);
	&shr	($magic,1);
	&and	($magic,32);
	&xor	($magic,32);			# nbist==192?0:32;

	&lea	($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point")));
	&call	("_vpaes_schedule_core");
&set_label("pic_point");

	&mov	("esp",&DWP(48,"esp"));
	&xor	("eax","eax");
&function_end("${PREFIX}_set_decrypt_key");

&function_begin("${PREFIX}_encrypt");
	&lea	($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point")));
	&call	("_vpaes_preheat");
&set_label("pic_point");
	&mov	($inp,&wparam(0));		# inp
	&lea	($base,&DWP(-56,"esp"));
	&mov	($out,&wparam(1));		# out
	&and	($base,-16);
	&mov	($key,&wparam(2));		# key
	&xchg	($base,"esp");			# alloca
	&mov	(&DWP(48,"esp"),$base);

	&movdqu	("xmm0",&QWP(0,$inp));
	&call	("_vpaes_encrypt_core");
	&movdqu	(&QWP(0,$out),"xmm0");

	&mov	("esp",&DWP(48,"esp"));
&function_end("${PREFIX}_encrypt");

&function_begin("${PREFIX}_decrypt");
	&lea	($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point")));
	&call	("_vpaes_preheat");
&set_label("pic_point");
	&mov	($inp,&wparam(0));		# inp
	&lea	($base,&DWP(-56,"esp"));
	&mov	($out,&wparam(1));		# out
	&and	($base,-16);
	&mov	($key,&wparam(2));		# key
	&xchg	($base,"esp");			# alloca
	&mov	(&DWP(48,"esp"),$base);

	&movdqu	("xmm0",&QWP(0,$inp));
	&call	("_vpaes_decrypt_core");
	&movdqu	(&QWP(0,$out),"xmm0");

	&mov	("esp",&DWP(48,"esp"));
&function_end("${PREFIX}_decrypt");

&function_begin("${PREFIX}_cbc_encrypt");
	&mov	($inp,&wparam(0));		# inp
	&mov	($out,&wparam(1));		# out
	&mov	($round,&wparam(2));		# len
	&mov	($key,&wparam(3));		# key
	&sub	($round,16);
	&jc	(&label("cbc_abort"));
	&lea	($base,&DWP(-56,"esp"));
	&mov	($const,&wparam(4));		# ivp
	&and	($base,-16);
	&mov	($magic,&wparam(5));		# enc
	&xchg	($base,"esp");			# alloca
	&movdqu	("xmm1",&QWP(0,$const));	# load IV
	&sub	($out,$inp);
	&mov	(&DWP(48,"esp"),$base);

	&mov	(&DWP(0,"esp"),$out);		# save out
	&mov	(&DWP(4,"esp"),$key)		# save key
	&mov	(&DWP(8,"esp"),$const);		# save ivp
	&mov	($out,$round);			# $out works as $len

	&lea	($const,&DWP(&label("_vpaes_consts")."+0x30-".&label("pic_point")));
	&call	("_vpaes_preheat");
&set_label("pic_point");
	&cmp	($magic,0);
	&je	(&label("cbc_dec_loop"));
	&jmp	(&label("cbc_enc_loop"));

&set_label("cbc_enc_loop",16);
	&movdqu	("xmm0",&QWP(0,$inp));		# load input
	&pxor	("xmm0","xmm1");		# inp^=iv
	&call	("_vpaes_encrypt_core");
	&mov	($base,&DWP(0,"esp"));		# restore out
	&mov	($key,&DWP(4,"esp"));		# restore key
	&movdqa	("xmm1","xmm0");
	&movdqu	(&QWP(0,$base,$inp),"xmm0");	# write output
	&lea	($inp,&DWP(16,$inp));
	&sub	($out,16);
	&jnc	(&label("cbc_enc_loop"));
	&jmp	(&label("cbc_done"));

&set_label("cbc_dec_loop",16);
	&movdqu	("xmm0",&QWP(0,$inp));		# load input
	&movdqa	(&QWP(16,"esp"),"xmm1");	# save IV
	&movdqa	(&QWP(32,"esp"),"xmm0");	# save future IV
	&call	("_vpaes_decrypt_core");
	&mov	($base,&DWP(0,"esp"));		# restore out
	&mov	($key,&DWP(4,"esp"));		# restore key
	&pxor	("xmm0",&QWP(16,"esp"));	# out^=iv
	&movdqa	("xmm1",&QWP(32,"esp"));	# load next IV
	&movdqu	(&QWP(0,$base,$inp),"xmm0");	# write output
	&lea	($inp,&DWP(16,$inp));
	&sub	($out,16);
	&jnc	(&label("cbc_dec_loop"));

&set_label("cbc_done");
	&mov	($base,&DWP(8,"esp"));		# restore ivp
	&mov	("esp",&DWP(48,"esp"));
	&movdqu	(&QWP(0,$base),"xmm1");		# write IV
&set_label("cbc_abort");
&function_end("${PREFIX}_cbc_encrypt");

&asm_finish();

close STDOUT or die "error closing STDOUT: $!";


#! /usr/bin/env perl
# Copyright 2011-2020 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License").  You may not use
# this file except in compliance with the License.  You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html

######################################################################
## Constant-time SSSE3 AES core implementation.
## version 0.1
##
## By Mike Hamburg (Stanford University), 2009
## Public domain.
##
## For details see http://shiftleft.org/papers/vector_aes/ and
## http://crypto.stanford.edu/vpaes/.

######################################################################
# September 2011.
#
# Interface to OpenSSL as "almost" drop-in replacement for
# aes-x86_64.pl. "Almost" refers to the fact that AES_cbc_encrypt
# doesn't handle partial vectors (doesn't have to if called from
# EVP only). "Drop-in" implies that this module doesn't share key
# schedule structure with the original nor does it make assumption
# about its alignment...
#
# Performance summary. aes-x86_64.pl column lists large-block CBC
# encrypt/decrypt/with-hyper-threading-off(*) results in cycles per
# byte processed with 128-bit key, and vpaes-x86_64.pl column -
# [also large-block CBC] encrypt/decrypt.
#
#		aes-x86_64.pl		vpaes-x86_64.pl
#
# Core 2(**)	29.6/41.1/14.3		21.9/25.2(***)
# Nehalem	29.6/40.3/14.6		10.0/11.8
# Atom		57.3/74.2/32.1		60.9/77.2(***)
# Silvermont	52.7/64.0/19.5		48.8/60.8(***)
# Goldmont	38.9/49.0/17.8		10.6/12.6
#
# (*)	"Hyper-threading" in the context refers rather to cache shared
#	among multiple cores, than to specifically Intel HTT. As vast
#	majority of contemporary cores share cache, slower code path
#	is common place. In other words "with-hyper-threading-off"
#	results are presented mostly for reference purposes.
#
# (**)	"Core 2" refers to initial 65nm design, a.k.a. Conroe.
#
# (***)	Less impressive improvement on Core 2 and Atom is due to slow
#	pshufb,	yet it's respectable +36%/62% improvement on Core 2
#	(as implied, over "hyper-threading-safe" code path).
#
#						<appro@openssl.org>

$flavour = shift;
$output  = shift;
if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }

$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);

$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
die "can't locate x86_64-xlate.pl";

open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\"";
*STDOUT=*OUT;

$PREFIX="vpaes";

$code.=<<___;
.text

##
##  _aes_encrypt_core
##
##  AES-encrypt %xmm0.
##
##  Inputs:
##     %xmm0 = input
##     %xmm9-%xmm15 as in _vpaes_preheat
##    (%rdx) = scheduled keys
##
##  Output in %xmm0
##  Clobbers  %xmm1-%xmm5, %r9, %r10, %r11, %rax
##  Preserves %xmm6 - %xmm8 so you get some local vectors
##
##
.type	_vpaes_encrypt_core,\@abi-omnipotent
.align 16
_vpaes_encrypt_core:
.cfi_startproc
	mov	%rdx,	%r9
	mov	\$16,	%r11
	mov	240(%rdx),%eax
	movdqa	%xmm9,	%xmm1
	movdqa	.Lk_ipt(%rip), %xmm2	# iptlo
	pandn	%xmm0,	%xmm1
	movdqu	(%r9),	%xmm5		# round0 key
	psrld	\$4,	%xmm1
	pand	%xmm9,	%xmm0
	pshufb	%xmm0,	%xmm2
	movdqa	.Lk_ipt+16(%rip), %xmm0	# ipthi
	pshufb	%xmm1,	%xmm0
	pxor	%xmm5,	%xmm2
	add	\$16,	%r9
	pxor	%xmm2,	%xmm0
	lea	.Lk_mc_backward(%rip),%r10
	jmp	.Lenc_entry

.align 16
.Lenc_loop:
	# middle of middle round
	movdqa  %xmm13,	%xmm4	# 4 : sb1u
	movdqa  %xmm12,	%xmm0	# 0 : sb1t
	pshufb  %xmm2,	%xmm4	# 4 = sb1u
	pshufb  %xmm3,	%xmm0	# 0 = sb1t
	pxor	%xmm5,	%xmm4	# 4 = sb1u + k
	movdqa  %xmm15,	%xmm5	# 4 : sb2u
	pxor	%xmm4,	%xmm0	# 0 = A
	movdqa	-0x40(%r11,%r10), %xmm1		# .Lk_mc_forward[]
	pshufb	%xmm2,	%xmm5	# 4 = sb2u
	movdqa	(%r11,%r10), %xmm4		# .Lk_mc_backward[]
	movdqa	%xmm14, %xmm2	# 2 : sb2t
	pshufb	%xmm3,  %xmm2	# 2 = sb2t
	movdqa	%xmm0,  %xmm3	# 3 = A
	pxor	%xmm5,	%xmm2	# 2 = 2A
	pshufb  %xmm1,  %xmm0	# 0 = B
	add	\$16,	%r9	# next key
	pxor	%xmm2,  %xmm0	# 0 = 2A+B
	pshufb	%xmm4,	%xmm3	# 3 = D
	add	\$16,	%r11	# next mc
	pxor	%xmm0,	%xmm3	# 3 = 2A+B+D
	pshufb  %xmm1,	%xmm0	# 0 = 2B+C
	and	\$0x30,	%r11	# ... mod 4
	sub	\$1,%rax	# nr--
	pxor	%xmm3,	%xmm0	# 0 = 2A+3B+C+D

.Lenc_entry:
	# top of round
	movdqa  %xmm9, 	%xmm1	# 1 : i
	movdqa	%xmm11, %xmm5	# 2 : a/k
	pandn	%xmm0, 	%xmm1	# 1 = i<<4
	psrld	\$4,   	%xmm1   # 1 = i
	pand	%xmm9, 	%xmm0   # 0 = k
	pshufb  %xmm0,  %xmm5	# 2 = a/k
	movdqa	%xmm10,	%xmm3  	# 3 : 1/i
	pxor	%xmm1,	%xmm0	# 0 = j
	pshufb  %xmm1, 	%xmm3  	# 3 = 1/i
	movdqa	%xmm10,	%xmm4  	# 4 : 1/j
	pxor	%xmm5, 	%xmm3  	# 3 = iak = 1/i + a/k
	pshufb	%xmm0, 	%xmm4  	# 4 = 1/j
	movdqa	%xmm10,	%xmm2  	# 2 : 1/iak
	pxor	%xmm5, 	%xmm4  	# 4 = jak = 1/j + a/k
	pshufb  %xmm3,	%xmm2  	# 2 = 1/iak
	movdqa	%xmm10, %xmm3   # 3 : 1/jak
	pxor	%xmm0, 	%xmm2  	# 2 = io
	pshufb  %xmm4,  %xmm3   # 3 = 1/jak
	movdqu	(%r9),	%xmm5
	pxor	%xmm1,  %xmm3   # 3 = jo
	jnz	.Lenc_loop

	# middle of last round
	movdqa	-0x60(%r10), %xmm4	# 3 : sbou	.Lk_sbo
	movdqa	-0x50(%r10), %xmm0	# 0 : sbot	.Lk_sbo+16
	pshufb  %xmm2,  %xmm4	# 4 = sbou
	pxor	%xmm5,  %xmm4	# 4 = sb1u + k
	pshufb  %xmm3,	%xmm0	# 0 = sb1t
	movdqa	0x40(%r11,%r10), %xmm1		# .Lk_sr[]
	pxor	%xmm4,	%xmm0	# 0 = A
	pshufb	%xmm1,	%xmm0
	ret
.cfi_endproc
.size	_vpaes_encrypt_core,.-_vpaes_encrypt_core

##
##  Decryption core
##
##  Same API as encryption core.
##
.type	_vpaes_decrypt_core,\@abi-omnipotent
.align	16
_vpaes_decrypt_core:
.cfi_startproc
	mov	%rdx,	%r9		# load key
	mov	240(%rdx),%eax
	movdqa	%xmm9,	%xmm1
	movdqa	.Lk_dipt(%rip), %xmm2	# iptlo
	pandn	%xmm0,	%xmm1
	mov	%rax,	%r11
	psrld	\$4,	%xmm1
	movdqu	(%r9),	%xmm5		# round0 key
	shl	\$4,	%r11
	pand	%xmm9,	%xmm0
	pshufb	%xmm0,	%xmm2
	movdqa	.Lk_dipt+16(%rip), %xmm0 # ipthi
	xor	\$0x30,	%r11
	lea	.Lk_dsbd(%rip),%r10
	pshufb	%xmm1,	%xmm0
	and	\$0x30,	%r11
	pxor	%xmm5,	%xmm2
	movdqa	.Lk_mc_forward+48(%rip), %xmm5
	pxor	%xmm2,	%xmm0
	add	\$16,	%r9
	add	%r10,	%r11
	jmp	.Ldec_entry

.align 16
.Ldec_loop:
##
##  Inverse mix columns
##
	movdqa  -0x20(%r10),%xmm4	# 4 : sb9u
	movdqa  -0x10(%r10),%xmm1	# 0 : sb9t
	pshufb	%xmm2,	%xmm4		# 4 = sb9u
	pshufb	%xmm3,	%xmm1		# 0 = sb9t
	pxor	%xmm4,	%xmm0
	movdqa  0x00(%r10),%xmm4	# 4 : sbdu
	pxor	%xmm1,	%xmm0		# 0 = ch
	movdqa  0x10(%r10),%xmm1	# 0 : sbdt

	pshufb	%xmm2,	%xmm4		# 4 = sbdu
	pshufb	%xmm5,	%xmm0		# MC ch
	pshufb	%xmm3,	%xmm1		# 0 = sbdt
	pxor	%xmm4,	%xmm0		# 4 = ch
	movdqa  0x20(%r10),%xmm4	# 4 : sbbu
	pxor	%xmm1,	%xmm0		# 0 = ch
	movdqa  0x30(%r10),%xmm1	# 0 : sbbt

	pshufb	%xmm2,	%xmm4		# 4 = sbbu
	pshufb	%xmm5,	%xmm0		# MC ch
	pshufb	%xmm3,	%xmm1		# 0 = sbbt
	pxor	%xmm4,	%xmm0		# 4 = ch
	movdqa  0x40(%r10),%xmm4	# 4 : sbeu
	pxor	%xmm1,	%xmm0		# 0 = ch
	movdqa  0x50(%r10),%xmm1	# 0 : sbet

	pshufb	%xmm2,	%xmm4		# 4 = sbeu
	pshufb	%xmm5,	%xmm0		# MC ch
	pshufb	%xmm3,	%xmm1		# 0 = sbet
	pxor	%xmm4,	%xmm0		# 4 = ch
	add	\$16, %r9		# next round key
	palignr	\$12,	%xmm5,	%xmm5
	pxor	%xmm1,	%xmm0		# 0 = ch
	sub	\$1,%rax		# nr--

.Ldec_entry:
	# top of round
	movdqa  %xmm9, 	%xmm1	# 1 : i
	pandn	%xmm0, 	%xmm1	# 1 = i<<4
	movdqa	%xmm11, %xmm2	# 2 : a/k
	psrld	\$4,    %xmm1	# 1 = i
	pand	%xmm9, 	%xmm0	# 0 = k
	pshufb  %xmm0,  %xmm2	# 2 = a/k
	movdqa	%xmm10,	%xmm3	# 3 : 1/i
	pxor	%xmm1,	%xmm0	# 0 = j
	pshufb  %xmm1, 	%xmm3	# 3 = 1/i
	movdqa	%xmm10,	%xmm4	# 4 : 1/j
	pxor	%xmm2, 	%xmm3	# 3 = iak = 1/i + a/k
	pshufb	%xmm0, 	%xmm4	# 4 = 1/j
	pxor	%xmm2, 	%xmm4	# 4 = jak = 1/j + a/k
	movdqa	%xmm10,	%xmm2	# 2 : 1/iak
	pshufb  %xmm3,	%xmm2	# 2 = 1/iak
	movdqa	%xmm10, %xmm3	# 3 : 1/jak
	pxor	%xmm0, 	%xmm2	# 2 = io
	pshufb  %xmm4,  %xmm3	# 3 = 1/jak
	movdqu	(%r9),	%xmm0
	pxor	%xmm1,  %xmm3	# 3 = jo
	jnz	.Ldec_loop

	# middle of last round
	movdqa	0x60(%r10), %xmm4	# 3 : sbou
	pshufb  %xmm2,  %xmm4	# 4 = sbou
	pxor	%xmm0,  %xmm4	# 4 = sb1u + k
	movdqa	0x70(%r10), %xmm0	# 0 : sbot
	movdqa	-0x160(%r11), %xmm2	# .Lk_sr-.Lk_dsbd=-0x160
	pshufb  %xmm3,	%xmm0	# 0 = sb1t
	pxor	%xmm4,	%xmm0	# 0 = A
	pshufb	%xmm2,	%xmm0
	ret
.cfi_endproc
.size	_vpaes_decrypt_core,.-_vpaes_decrypt_core

########################################################
##                                                    ##
##                  AES key schedule                  ##
##                                                    ##
########################################################
.type	_vpaes_schedule_core,\@abi-omnipotent
.align	16
_vpaes_schedule_core:
.cfi_startproc
	# rdi = key
	# rsi = size in bits
	# rdx = buffer
	# rcx = direction.  0=encrypt, 1=decrypt

	call	_vpaes_preheat		# load the tables
	movdqa	.Lk_rcon(%rip), %xmm8	# load rcon
	movdqu	(%rdi),	%xmm0		# load key (unaligned)

	# input transform
	movdqa	%xmm0,	%xmm3
	lea	.Lk_ipt(%rip), %r11
	call	_vpaes_schedule_transform
	movdqa	%xmm0,	%xmm7

	lea	.Lk_sr(%rip),%r10
	test	%rcx,	%rcx
	jnz	.Lschedule_am_decrypting

	# encrypting, output zeroth round key after transform
	movdqu	%xmm0,	(%rdx)
	jmp	.Lschedule_go

.Lschedule_am_decrypting:
	# decrypting, output zeroth round key after shiftrows
	movdqa	(%r8,%r10),%xmm1
	pshufb  %xmm1,	%xmm3
	movdqu	%xmm3,	(%rdx)
	xor	\$0x30, %r8

.Lschedule_go:
	cmp	\$192,	%esi
	ja	.Lschedule_256
	je	.Lschedule_192
	# 128: fall though

##
##  .schedule_128
##
##  128-bit specific part of key schedule.
##
##  This schedule is really simple, because all its parts
##  are accomplished by the subroutines.
##
.Lschedule_128:
	mov	\$10, %esi

.Loop_schedule_128:
	call 	_vpaes_schedule_round
	dec	%rsi
	jz 	.Lschedule_mangle_last
	call	_vpaes_schedule_mangle	# write output
	jmp 	.Loop_schedule_128

##
##  .aes_schedule_192
##
##  192-bit specific part of key schedule.
##
##  The main body of this schedule is the same as the 128-bit
##  schedule, but with more smearing.  The long, high side is
##  stored in %xmm7 as before, and the short, low side is in
##  the high bits of %xmm6.
##
##  This schedule is somewhat nastier, however, because each
##  round produces 192 bits of key material, or 1.5 round keys.
##  Therefore, on each cycle we do 2 rounds and produce 3 round
##  keys.
##
.align	16
.Lschedule_192:
	movdqu	8(%rdi),%xmm0		# load key part 2 (very unaligned)
	call	_vpaes_schedule_transform	# input transform
	movdqa	%xmm0,	%xmm6		# save short part
	pxor	%xmm4,	%xmm4		# clear 4
	movhlps	%xmm4,	%xmm6		# clobber low side with zeros
	mov	\$4,	%esi

.Loop_schedule_192:
	call	_vpaes_schedule_round
	palignr	\$8,%xmm6,%xmm0
	call	_vpaes_schedule_mangle	# save key n
	call	_vpaes_schedule_192_smear
	call	_vpaes_schedule_mangle	# save key n+1
	call	_vpaes_schedule_round
	dec	%rsi
	jz 	.Lschedule_mangle_last
	call	_vpaes_schedule_mangle	# save key n+2
	call	_vpaes_schedule_192_smear
	jmp	.Loop_schedule_192

##
##  .aes_schedule_256
##
##  256-bit specific part of key schedule.
##
##  The structure here is very similar to the 128-bit
##  schedule, but with an additional "low side" in
##  %xmm6.  The low side's rounds are the same as the
##  high side's, except no rcon and no rotation.
##
.align	16
.Lschedule_256:
	movdqu	16(%rdi),%xmm0		# load key part 2 (unaligned)
	call	_vpaes_schedule_transform	# input transform
	mov	\$7, %esi

.Loop_schedule_256:
	call	_vpaes_schedule_mangle	# output low result
	movdqa	%xmm0,	%xmm6		# save cur_lo in xmm6

	# high round
	call	_vpaes_schedule_round
	dec	%rsi
	jz 	.Lschedule_mangle_last
	call	_vpaes_schedule_mangle

	# low round. swap xmm7 and xmm6
	pshufd	\$0xFF,	%xmm0,	%xmm0
	movdqa	%xmm7,	%xmm5
	movdqa	%xmm6,	%xmm7
	call	_vpaes_schedule_low_round
	movdqa	%xmm5,	%xmm7

	jmp	.Loop_schedule_256

##
##  .aes_schedule_mangle_last
##
##  Mangler for last round of key schedule
##  Mangles %xmm0
##    when encrypting, outputs out(%xmm0) ^ 63
##    when decrypting, outputs unskew(%xmm0)
##
##  Always called right before return... jumps to cleanup and exits
##
.align	16
.Lschedule_mangle_last:
	# schedule last round key from xmm0
	lea	.Lk_deskew(%rip),%r11	# prepare to deskew
	test	%rcx, 	%rcx
	jnz	.Lschedule_mangle_last_dec

	# encrypting
	movdqa	(%r8,%r10),%xmm1
	pshufb	%xmm1,	%xmm0		# output permute
	lea	.Lk_opt(%rip),	%r11	# prepare to output transform
	add	\$32,	%rdx

.Lschedule_mangle_last_dec:
	add	\$-16,	%rdx
	pxor	.Lk_s63(%rip),	%xmm0
	call	_vpaes_schedule_transform # output transform
	movdqu	%xmm0,	(%rdx)		# save last key

	# cleanup
	pxor	%xmm0,  %xmm0
	pxor	%xmm1,  %xmm1
	pxor	%xmm2,  %xmm2
	pxor	%xmm3,  %xmm3
	pxor	%xmm4,  %xmm4
	pxor	%xmm5,  %xmm5
	pxor	%xmm6,  %xmm6
	pxor	%xmm7,  %xmm7
	ret
.cfi_endproc
.size	_vpaes_schedule_core,.-_vpaes_schedule_core

##
##  .aes_schedule_192_smear
##
##  Smear the short, low side in the 192-bit key schedule.
##
##  Inputs:
##    %xmm7: high side, b  a  x  y
##    %xmm6:  low side, d  c  0  0
##    %xmm13: 0
##
##  Outputs:
##    %xmm6: b+c+d  b+c  0  0
##    %xmm0: b+c+d  b+c  b  a
##
.type	_vpaes_schedule_192_smear,\@abi-omnipotent
.align	16
_vpaes_schedule_192_smear:
.cfi_startproc
	pshufd	\$0x80,	%xmm6,	%xmm1	# d c 0 0 -> c 0 0 0
	pshufd	\$0xFE,	%xmm7,	%xmm0	# b a _ _ -> b b b a
	pxor	%xmm1,	%xmm6		# -> c+d c 0 0
	pxor	%xmm1,	%xmm1
	pxor	%xmm0,	%xmm6		# -> b+c+d b+c b a
	movdqa	%xmm6,	%xmm0
	movhlps	%xmm1,	%xmm6		# clobber low side with zeros
	ret
.cfi_endproc
.size	_vpaes_schedule_192_smear,.-_vpaes_schedule_192_smear

##
##  .aes_schedule_round
##
##  Runs one main round of the key schedule on %xmm0, %xmm7
##
##  Specifically, runs subbytes on the high dword of %xmm0
##  then rotates it by one byte and xors into the low dword of
##  %xmm7.
##
##  Adds rcon from low byte of %xmm8, then rotates %xmm8 for
##  next rcon.
##
##  Smears the dwords of %xmm7 by xoring the low into the
##  second low, result into third, result into highest.
##
##  Returns results in %xmm7 = %xmm0.
##  Clobbers %xmm1-%xmm4, %r11.
##
.type	_vpaes_schedule_round,\@abi-omnipotent
.align	16
_vpaes_schedule_round:
.cfi_startproc
	# extract rcon from xmm8
	pxor	%xmm1,	%xmm1
	palignr	\$15,	%xmm8,	%xmm1
	palignr	\$15,	%xmm8,	%xmm8
	pxor	%xmm1,	%xmm7

	# rotate
	pshufd	\$0xFF,	%xmm0,	%xmm0
	palignr	\$1,	%xmm0,	%xmm0

	# fall through...

	# low round: same as high round, but no rotation and no rcon.
_vpaes_schedule_low_round:
	# smear xmm7
	movdqa	%xmm7,	%xmm1
	pslldq	\$4,	%xmm7
	pxor	%xmm1,	%xmm7
	movdqa	%xmm7,	%xmm1
	pslldq	\$8,	%xmm7
	pxor	%xmm1,	%xmm7
	pxor	.Lk_s63(%rip), %xmm7

	# subbytes
	movdqa  %xmm9, 	%xmm1
	pandn	%xmm0, 	%xmm1
	psrld	\$4,    %xmm1		# 1 = i
	pand	%xmm9, 	%xmm0		# 0 = k
	movdqa	%xmm11, %xmm2		# 2 : a/k
	pshufb  %xmm0,  %xmm2		# 2 = a/k
	pxor	%xmm1,	%xmm0		# 0 = j
	movdqa	%xmm10,	%xmm3		# 3 : 1/i
	pshufb  %xmm1, 	%xmm3		# 3 = 1/i
	pxor	%xmm2, 	%xmm3		# 3 = iak = 1/i + a/k
	movdqa	%xmm10,	%xmm4		# 4 : 1/j
	pshufb	%xmm0, 	%xmm4		# 4 = 1/j
	pxor	%xmm2, 	%xmm4		# 4 = jak = 1/j + a/k
	movdqa	%xmm10,	%xmm2		# 2 : 1/iak
	pshufb  %xmm3,	%xmm2		# 2 = 1/iak
	pxor	%xmm0, 	%xmm2		# 2 = io
	movdqa	%xmm10, %xmm3		# 3 : 1/jak
	pshufb  %xmm4,  %xmm3		# 3 = 1/jak
	pxor	%xmm1,  %xmm3		# 3 = jo
	movdqa	%xmm13, %xmm4		# 4 : sbou
	pshufb  %xmm2,  %xmm4		# 4 = sbou
	movdqa	%xmm12, %xmm0		# 0 : sbot
	pshufb  %xmm3,	%xmm0		# 0 = sb1t
	pxor	%xmm4, 	%xmm0		# 0 = sbox output

	# add in smeared stuff
	pxor	%xmm7,	%xmm0
	movdqa	%xmm0,	%xmm7
	ret
.cfi_endproc
.size	_vpaes_schedule_round,.-_vpaes_schedule_round

##
##  .aes_schedule_transform
##
##  Linear-transform %xmm0 according to tables at (%r11)
##
##  Requires that %xmm9 = 0x0F0F... as in preheat
##  Output in %xmm0
##  Clobbers %xmm1, %xmm2
##
.type	_vpaes_schedule_transform,\@abi-omnipotent
.align	16
_vpaes_schedule_transform:
.cfi_startproc
	movdqa	%xmm9,	%xmm1
	pandn	%xmm0,	%xmm1
	psrld	\$4,	%xmm1
	pand	%xmm9,	%xmm0
	movdqa	(%r11), %xmm2 	# lo
	pshufb	%xmm0,	%xmm2
	movdqa	16(%r11), %xmm0 # hi
	pshufb	%xmm1,	%xmm0
	pxor	%xmm2,	%xmm0
	ret
.cfi_endproc
.size	_vpaes_schedule_transform,.-_vpaes_schedule_transform

##
##  .aes_schedule_mangle
##
##  Mangle xmm0 from (basis-transformed) standard version
##  to our version.
##
##  On encrypt,
##    xor with 0x63
##    multiply by circulant 0,1,1,1
##    apply shiftrows transform
##
##  On decrypt,
##    xor with 0x63
##    multiply by "inverse mixcolumns" circulant E,B,D,9
##    deskew
##    apply shiftrows transform
##
##
##  Writes out to (%rdx), and increments or decrements it
##  Keeps track of round number mod 4 in %r8
##  Preserves xmm0
##  Clobbers xmm1-xmm5
##
.type	_vpaes_schedule_mangle,\@abi-omnipotent
.align	16
_vpaes_schedule_mangle:
.cfi_startproc
	movdqa	%xmm0,	%xmm4	# save xmm0 for later
	movdqa	.Lk_mc_forward(%rip),%xmm5
	test	%rcx, 	%rcx
	jnz	.Lschedule_mangle_dec

	# encrypting
	add	\$16,	%rdx
	pxor	.Lk_s63(%rip),%xmm4
	pshufb	%xmm5,	%xmm4
	movdqa	%xmm4,	%xmm3
	pshufb	%xmm5,	%xmm4
	pxor	%xmm4,	%xmm3
	pshufb	%xmm5,	%xmm4
	pxor	%xmm4,	%xmm3

	jmp	.Lschedule_mangle_both
.align	16
.Lschedule_mangle_dec:
	# inverse mix columns
	lea	.Lk_dksd(%rip),%r11
	movdqa	%xmm9,	%xmm1
	pandn	%xmm4,	%xmm1
	psrld	\$4,	%xmm1	# 1 = hi
	pand	%xmm9,	%xmm4	# 4 = lo

	movdqa	0x00(%r11), %xmm2
	pshufb	%xmm4,	%xmm2
	movdqa	0x10(%r11), %xmm3
	pshufb	%xmm1,	%xmm3
	pxor	%xmm2,	%xmm3
	pshufb	%xmm5,	%xmm3

	movdqa	0x20(%r11), %xmm2
	pshufb	%xmm4,	%xmm2
	pxor	%xmm3,	%xmm2
	movdqa	0x30(%r11), %xmm3
	pshufb	%xmm1,	%xmm3
	pxor	%xmm2,	%xmm3
	pshufb	%xmm5,	%xmm3

	movdqa	0x40(%r11), %xmm2
	pshufb	%xmm4,	%xmm2
	pxor	%xmm3,	%xmm2
	movdqa	0x50(%r11), %xmm3
	pshufb	%xmm1,	%xmm3
	pxor	%xmm2,	%xmm3
	pshufb	%xmm5,	%xmm3

	movdqa	0x60(%r11), %xmm2
	pshufb	%xmm4,	%xmm2
	pxor	%xmm3,	%xmm2
	movdqa	0x70(%r11), %xmm3
	pshufb	%xmm1,	%xmm3
	pxor	%xmm2,	%xmm3

	add	\$-16,	%rdx

.Lschedule_mangle_both:
	movdqa	(%r8,%r10),%xmm1
	pshufb	%xmm1,%xmm3
	add	\$-16,	%r8
	and	\$0x30,	%r8
	movdqu	%xmm3,	(%rdx)
	ret
.cfi_endproc
.size	_vpaes_schedule_mangle,.-_vpaes_schedule_mangle

#
# Interface to OpenSSL
#
.globl	${PREFIX}_set_encrypt_key
.type	${PREFIX}_set_encrypt_key,\@function,3
.align	16
${PREFIX}_set_encrypt_key:
.cfi_startproc
___
$code.=<<___ if ($win64);
	lea	-0xb8(%rsp),%rsp
	movaps	%xmm6,0x10(%rsp)
	movaps	%xmm7,0x20(%rsp)
	movaps	%xmm8,0x30(%rsp)
	movaps	%xmm9,0x40(%rsp)
	movaps	%xmm10,0x50(%rsp)
	movaps	%xmm11,0x60(%rsp)
	movaps	%xmm12,0x70(%rsp)
	movaps	%xmm13,0x80(%rsp)
	movaps	%xmm14,0x90(%rsp)
	movaps	%xmm15,0xa0(%rsp)
.Lenc_key_body:
___
$code.=<<___;
	mov	%esi,%eax
	shr	\$5,%eax
	add	\$5,%eax
	mov	%eax,240(%rdx)	# AES_KEY->rounds = nbits/32+5;

	mov	\$0,%ecx
	mov	\$0x30,%r8d
	call	_vpaes_schedule_core
___
$code.=<<___ if ($win64);
	movaps	0x10(%rsp),%xmm6
	movaps	0x20(%rsp),%xmm7
	movaps	0x30(%rsp),%xmm8
	movaps	0x40(%rsp),%xmm9
	movaps	0x50(%rsp),%xmm10
	movaps	0x60(%rsp),%xmm11
	movaps	0x70(%rsp),%xmm12
	movaps	0x80(%rsp),%xmm13
	movaps	0x90(%rsp),%xmm14
	movaps	0xa0(%rsp),%xmm15
	lea	0xb8(%rsp),%rsp
.Lenc_key_epilogue:
___
$code.=<<___;
	xor	%eax,%eax
	ret
.cfi_endproc
.size	${PREFIX}_set_encrypt_key,.-${PREFIX}_set_encrypt_key

.globl	${PREFIX}_set_decrypt_key
.type	${PREFIX}_set_decrypt_key,\@function,3
.align	16
${PREFIX}_set_decrypt_key:
.cfi_startproc
___
$code.=<<___ if ($win64);
	lea	-0xb8(%rsp),%rsp
	movaps	%xmm6,0x10(%rsp)
	movaps	%xmm7,0x20(%rsp)
	movaps	%xmm8,0x30(%rsp)
	movaps	%xmm9,0x40(%rsp)
	movaps	%xmm10,0x50(%rsp)
	movaps	%xmm11,0x60(%rsp)
	movaps	%xmm12,0x70(%rsp)
	movaps	%xmm13,0x80(%rsp)
	movaps	%xmm14,0x90(%rsp)
	movaps	%xmm15,0xa0(%rsp)
.Ldec_key_body:
___
$code.=<<___;
	mov	%esi,%eax
	shr	\$5,%eax
	add	\$5,%eax
	mov	%eax,240(%rdx)	# AES_KEY->rounds = nbits/32+5;
	shl	\$4,%eax
	lea	16(%rdx,%rax),%rdx

	mov	\$1,%ecx
	mov	%esi,%r8d
	shr	\$1,%r8d
	and	\$32,%r8d
	xor	\$32,%r8d	# nbits==192?0:32
	call	_vpaes_schedule_core
___
$code.=<<___ if ($win64);
	movaps	0x10(%rsp),%xmm6
	movaps	0x20(%rsp),%xmm7
	movaps	0x30(%rsp),%xmm8
	movaps	0x40(%rsp),%xmm9
	movaps	0x50(%rsp),%xmm10
	movaps	0x60(%rsp),%xmm11
	movaps	0x70(%rsp),%xmm12
	movaps	0x80(%rsp),%xmm13
	movaps	0x90(%rsp),%xmm14
	movaps	0xa0(%rsp),%xmm15
	lea	0xb8(%rsp),%rsp
.Ldec_key_epilogue:
___
$code.=<<___;
	xor	%eax,%eax
	ret
.cfi_endproc
.size	${PREFIX}_set_decrypt_key,.-${PREFIX}_set_decrypt_key

.globl	${PREFIX}_encrypt
.type	${PREFIX}_encrypt,\@function,3
.align	16
${PREFIX}_encrypt:
.cfi_startproc
___
$code.=<<___ if ($win64);
	lea	-0xb8(%rsp),%rsp
	movaps	%xmm6,0x10(%rsp)
	movaps	%xmm7,0x20(%rsp)
	movaps	%xmm8,0x30(%rsp)
	movaps	%xmm9,0x40(%rsp)
	movaps	%xmm10,0x50(%rsp)
	movaps	%xmm11,0x60(%rsp)
	movaps	%xmm12,0x70(%rsp)
	movaps	%xmm13,0x80(%rsp)
	movaps	%xmm14,0x90(%rsp)
	movaps	%xmm15,0xa0(%rsp)
.Lenc_body:
___
$code.=<<___;
	movdqu	(%rdi),%xmm0
	call	_vpaes_preheat
	call	_vpaes_encrypt_core
	movdqu	%xmm0,(%rsi)
___
$code.=<<___ if ($win64);
	movaps	0x10(%rsp),%xmm6
	movaps	0x20(%rsp),%xmm7
	movaps	0x30(%rsp),%xmm8
	movaps	0x40(%rsp),%xmm9
	movaps	0x50(%rsp),%xmm10
	movaps	0x60(%rsp),%xmm11
	movaps	0x70(%rsp),%xmm12
	movaps	0x80(%rsp),%xmm13
	movaps	0x90(%rsp),%xmm14
	movaps	0xa0(%rsp),%xmm15
	lea	0xb8(%rsp),%rsp
.Lenc_epilogue:
___
$code.=<<___;
	ret
.cfi_endproc
.size	${PREFIX}_encrypt,.-${PREFIX}_encrypt

.globl	${PREFIX}_decrypt
.type	${PREFIX}_decrypt,\@function,3
.align	16
${PREFIX}_decrypt:
.cfi_startproc
___
$code.=<<___ if ($win64);
	lea	-0xb8(%rsp),%rsp
	movaps	%xmm6,0x10(%rsp)
	movaps	%xmm7,0x20(%rsp)
	movaps	%xmm8,0x30(%rsp)
	movaps	%xmm9,0x40(%rsp)
	movaps	%xmm10,0x50(%rsp)
	movaps	%xmm11,0x60(%rsp)
	movaps	%xmm12,0x70(%rsp)
	movaps	%xmm13,0x80(%rsp)
	movaps	%xmm14,0x90(%rsp)
	movaps	%xmm15,0xa0(%rsp)
.Ldec_body:
___
$code.=<<___;
	movdqu	(%rdi),%xmm0
	call	_vpaes_preheat
	call	_vpaes_decrypt_core
	movdqu	%xmm0,(%rsi)
___
$code.=<<___ if ($win64);
	movaps	0x10(%rsp),%xmm6
	movaps	0x20(%rsp),%xmm7
	movaps	0x30(%rsp),%xmm8
	movaps	0x40(%rsp),%xmm9
	movaps	0x50(%rsp),%xmm10
	movaps	0x60(%rsp),%xmm11
	movaps	0x70(%rsp),%xmm12
	movaps	0x80(%rsp),%xmm13
	movaps	0x90(%rsp),%xmm14
	movaps	0xa0(%rsp),%xmm15
	lea	0xb8(%rsp),%rsp
.Ldec_epilogue:
___
$code.=<<___;
	ret
.cfi_endproc
.size	${PREFIX}_decrypt,.-${PREFIX}_decrypt
___
{
my ($inp,$out,$len,$key,$ivp,$enc)=("%rdi","%rsi","%rdx","%rcx","%r8","%r9");
# void AES_cbc_encrypt (const void char *inp, unsigned char *out,
#                       size_t length, const AES_KEY *key,
#                       unsigned char *ivp,const int enc);
$code.=<<___;
.globl	${PREFIX}_cbc_encrypt
.type	${PREFIX}_cbc_encrypt,\@function,6
.align	16
${PREFIX}_cbc_encrypt:
.cfi_startproc
	xchg	$key,$len
___
($len,$key)=($key,$len);
$code.=<<___;
	sub	\$16,$len
	jc	.Lcbc_abort
___
$code.=<<___ if ($win64);
	lea	-0xb8(%rsp),%rsp
	movaps	%xmm6,0x10(%rsp)
	movaps	%xmm7,0x20(%rsp)
	movaps	%xmm8,0x30(%rsp)
	movaps	%xmm9,0x40(%rsp)
	movaps	%xmm10,0x50(%rsp)
	movaps	%xmm11,0x60(%rsp)
	movaps	%xmm12,0x70(%rsp)
	movaps	%xmm13,0x80(%rsp)
	movaps	%xmm14,0x90(%rsp)
	movaps	%xmm15,0xa0(%rsp)
.Lcbc_body:
___
$code.=<<___;
	movdqu	($ivp),%xmm6		# load IV
	sub	$inp,$out
	call	_vpaes_preheat
	cmp	\$0,${enc}d
	je	.Lcbc_dec_loop
	jmp	.Lcbc_enc_loop
.align	16
.Lcbc_enc_loop:
	movdqu	($inp),%xmm0
	pxor	%xmm6,%xmm0
	call	_vpaes_encrypt_core
	movdqa	%xmm0,%xmm6
	movdqu	%xmm0,($out,$inp)
	lea	16($inp),$inp
	sub	\$16,$len
	jnc	.Lcbc_enc_loop
	jmp	.Lcbc_done
.align	16
.Lcbc_dec_loop:
	movdqu	($inp),%xmm0
	movdqa	%xmm0,%xmm7
	call	_vpaes_decrypt_core
	pxor	%xmm6,%xmm0
	movdqa	%xmm7,%xmm6
	movdqu	%xmm0,($out,$inp)
	lea	16($inp),$inp
	sub	\$16,$len
	jnc	.Lcbc_dec_loop
.Lcbc_done:
	movdqu	%xmm6,($ivp)		# save IV
___
$code.=<<___ if ($win64);
	movaps	0x10(%rsp),%xmm6
	movaps	0x20(%rsp),%xmm7
	movaps	0x30(%rsp),%xmm8
	movaps	0x40(%rsp),%xmm9
	movaps	0x50(%rsp),%xmm10
	movaps	0x60(%rsp),%xmm11
	movaps	0x70(%rsp),%xmm12
	movaps	0x80(%rsp),%xmm13
	movaps	0x90(%rsp),%xmm14
	movaps	0xa0(%rsp),%xmm15
	lea	0xb8(%rsp),%rsp
.Lcbc_epilogue:
___
$code.=<<___;
.Lcbc_abort:
	ret
.cfi_endproc
.size	${PREFIX}_cbc_encrypt,.-${PREFIX}_cbc_encrypt
___
}
$code.=<<___;
##
##  _aes_preheat
##
##  Fills register %r10 -> .aes_consts (so you can -fPIC)
##  and %xmm9-%xmm15 as specified below.
##
.type	_vpaes_preheat,\@abi-omnipotent
.align	16
_vpaes_preheat:
.cfi_startproc
	lea	.Lk_s0F(%rip), %r10
	movdqa	-0x20(%r10), %xmm10	# .Lk_inv
	movdqa	-0x10(%r10), %xmm11	# .Lk_inv+16
	movdqa	0x00(%r10), %xmm9	# .Lk_s0F
	movdqa	0x30(%r10), %xmm13	# .Lk_sb1
	movdqa	0x40(%r10), %xmm12	# .Lk_sb1+16
	movdqa	0x50(%r10), %xmm15	# .Lk_sb2
	movdqa	0x60(%r10), %xmm14	# .Lk_sb2+16
	ret
.cfi_endproc
.size	_vpaes_preheat,.-_vpaes_preheat
########################################################
##                                                    ##
##                     Constants                      ##
##                                                    ##
########################################################
.type	_vpaes_consts,\@object
.align	64
_vpaes_consts:
.Lk_inv:	# inv, inva
	.quad	0x0E05060F0D080180, 0x040703090A0B0C02
	.quad	0x01040A060F0B0780, 0x030D0E0C02050809

.Lk_s0F:	# s0F
	.quad	0x0F0F0F0F0F0F0F0F, 0x0F0F0F0F0F0F0F0F

.Lk_ipt:	# input transform (lo, hi)
	.quad	0xC2B2E8985A2A7000, 0xCABAE09052227808
	.quad	0x4C01307D317C4D00, 0xCD80B1FCB0FDCC81

.Lk_sb1:	# sb1u, sb1t
	.quad	0xB19BE18FCB503E00, 0xA5DF7A6E142AF544
	.quad	0x3618D415FAE22300, 0x3BF7CCC10D2ED9EF
.Lk_sb2:	# sb2u, sb2t
	.quad	0xE27A93C60B712400, 0x5EB7E955BC982FCD
	.quad	0x69EB88400AE12900, 0xC2A163C8AB82234A
.Lk_sbo:	# sbou, sbot
	.quad	0xD0D26D176FBDC700, 0x15AABF7AC502A878
	.quad	0xCFE474A55FBB6A00, 0x8E1E90D1412B35FA

.Lk_mc_forward:	# mc_forward
	.quad	0x0407060500030201, 0x0C0F0E0D080B0A09
	.quad	0x080B0A0904070605, 0x000302010C0F0E0D
	.quad	0x0C0F0E0D080B0A09, 0x0407060500030201
	.quad	0x000302010C0F0E0D, 0x080B0A0904070605

.Lk_mc_backward:# mc_backward
	.quad	0x0605040702010003, 0x0E0D0C0F0A09080B
	.quad	0x020100030E0D0C0F, 0x0A09080B06050407
	.quad	0x0E0D0C0F0A09080B, 0x0605040702010003
	.quad	0x0A09080B06050407, 0x020100030E0D0C0F

.Lk_sr:		# sr
	.quad	0x0706050403020100, 0x0F0E0D0C0B0A0908
	.quad	0x030E09040F0A0500, 0x0B06010C07020D08
	.quad	0x0F060D040B020900, 0x070E050C030A0108
	.quad	0x0B0E0104070A0D00, 0x0306090C0F020508

.Lk_rcon:	# rcon
	.quad	0x1F8391B9AF9DEEB6, 0x702A98084D7C7D81

.Lk_s63:	# s63: all equal to 0x63 transformed
	.quad	0x5B5B5B5B5B5B5B5B, 0x5B5B5B5B5B5B5B5B

.Lk_opt:	# output transform
	.quad	0xFF9F4929D6B66000, 0xF7974121DEBE6808
	.quad	0x01EDBD5150BCEC00, 0xE10D5DB1B05C0CE0

.Lk_deskew:	# deskew tables: inverts the sbox's "skew"
	.quad	0x07E4A34047A4E300, 0x1DFEB95A5DBEF91A
	.quad	0x5F36B5DC83EA6900, 0x2841C2ABF49D1E77

##
##  Decryption stuff
##  Key schedule constants
##
.Lk_dksd:	# decryption key schedule: invskew x*D
	.quad	0xFEB91A5DA3E44700, 0x0740E3A45A1DBEF9
	.quad	0x41C277F4B5368300, 0x5FDC69EAAB289D1E
.Lk_dksb:	# decryption key schedule: invskew x*B
	.quad	0x9A4FCA1F8550D500, 0x03D653861CC94C99
	.quad	0x115BEDA7B6FC4A00, 0xD993256F7E3482C8
.Lk_dkse:	# decryption key schedule: invskew x*E + 0x63
	.quad	0xD5031CCA1FC9D600, 0x53859A4C994F5086
	.quad	0xA23196054FDC7BE8, 0xCD5EF96A20B31487
.Lk_dks9:	# decryption key schedule: invskew x*9
	.quad	0xB6116FC87ED9A700, 0x4AED933482255BFC
	.quad	0x4576516227143300, 0x8BB89FACE9DAFDCE

##
##  Decryption stuff
##  Round function constants
##
.Lk_dipt:	# decryption input transform
	.quad	0x0F505B040B545F00, 0x154A411E114E451A
	.quad	0x86E383E660056500, 0x12771772F491F194

.Lk_dsb9:	# decryption sbox output *9*u, *9*t
	.quad	0x851C03539A86D600, 0xCAD51F504F994CC9
	.quad	0xC03B1789ECD74900, 0x725E2C9EB2FBA565
.Lk_dsbd:	# decryption sbox output *D*u, *D*t
	.quad	0x7D57CCDFE6B1A200, 0xF56E9B13882A4439
	.quad	0x3CE2FAF724C6CB00, 0x2931180D15DEEFD3
.Lk_dsbb:	# decryption sbox output *B*u, *B*t
	.quad	0xD022649296B44200, 0x602646F6B0F2D404
	.quad	0xC19498A6CD596700, 0xF3FF0C3E3255AA6B
.Lk_dsbe:	# decryption sbox output *E*u, *E*t
	.quad	0x46F2929626D4D000, 0x2242600464B4F6B0
	.quad	0x0C55A6CDFFAAC100, 0x9467F36B98593E32
.Lk_dsbo:	# decryption sbox final output
	.quad	0x1387EA537EF94000, 0xC7AA6DB9D4943E2D
	.quad	0x12D7560F93441D00, 0xCA4B8159D8C58E9C
.asciz	"Vector Permutation AES for x86_64/SSSE3, Mike Hamburg (Stanford University)"
.align	64
.size	_vpaes_consts,.-_vpaes_consts
___

if ($win64) {
# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
#		CONTEXT *context,DISPATCHER_CONTEXT *disp)
$rec="%rcx";
$frame="%rdx";
$context="%r8";
$disp="%r9";

$code.=<<___;
.extern	__imp_RtlVirtualUnwind
.type	se_handler,\@abi-omnipotent
.align	16
se_handler:
	push	%rsi
	push	%rdi
	push	%rbx
	push	%rbp
	push	%r12
	push	%r13
	push	%r14
	push	%r15
	pushfq
	sub	\$64,%rsp

	mov	120($context),%rax	# pull context->Rax
	mov	248($context),%rbx	# pull context->Rip

	mov	8($disp),%rsi		# disp->ImageBase
	mov	56($disp),%r11		# disp->HandlerData

	mov	0(%r11),%r10d		# HandlerData[0]
	lea	(%rsi,%r10),%r10	# prologue label
	cmp	%r10,%rbx		# context->Rip<prologue label
	jb	.Lin_prologue

	mov	152($context),%rax	# pull context->Rsp

	mov	4(%r11),%r10d		# HandlerData[1]
	lea	(%rsi,%r10),%r10	# epilogue label
	cmp	%r10,%rbx		# context->Rip>=epilogue label
	jae	.Lin_prologue

	lea	16(%rax),%rsi		# %xmm save area
	lea	512($context),%rdi	# &context.Xmm6
	mov	\$20,%ecx		# 10*sizeof(%xmm0)/sizeof(%rax)
	.long	0xa548f3fc		# cld; rep movsq
	lea	0xb8(%rax),%rax		# adjust stack pointer

.Lin_prologue:
	mov	8(%rax),%rdi
	mov	16(%rax),%rsi
	mov	%rax,152($context)	# restore context->Rsp
	mov	%rsi,168($context)	# restore context->Rsi
	mov	%rdi,176($context)	# restore context->Rdi

	mov	40($disp),%rdi		# disp->ContextRecord
	mov	$context,%rsi		# context
	mov	\$`1232/8`,%ecx		# sizeof(CONTEXT)
	.long	0xa548f3fc		# cld; rep movsq

	mov	$disp,%rsi
	xor	%rcx,%rcx		# arg1, UNW_FLAG_NHANDLER
	mov	8(%rsi),%rdx		# arg2, disp->ImageBase
	mov	0(%rsi),%r8		# arg3, disp->ControlPc
	mov	16(%rsi),%r9		# arg4, disp->FunctionEntry
	mov	40(%rsi),%r10		# disp->ContextRecord
	lea	56(%rsi),%r11		# &disp->HandlerData
	lea	24(%rsi),%r12		# &disp->EstablisherFrame
	mov	%r10,32(%rsp)		# arg5
	mov	%r11,40(%rsp)		# arg6
	mov	%r12,48(%rsp)		# arg7
	mov	%rcx,56(%rsp)		# arg8, (NULL)
	call	*__imp_RtlVirtualUnwind(%rip)

	mov	\$1,%eax		# ExceptionContinueSearch
	add	\$64,%rsp
	popfq
	pop	%r15
	pop	%r14
	pop	%r13
	pop	%r12
	pop	%rbp
	pop	%rbx
	pop	%rdi
	pop	%rsi
	ret
.size	se_handler,.-se_handler

.section	.pdata
.align	4
	.rva	.LSEH_begin_${PREFIX}_set_encrypt_key
	.rva	.LSEH_end_${PREFIX}_set_encrypt_key
	.rva	.LSEH_info_${PREFIX}_set_encrypt_key

	.rva	.LSEH_begin_${PREFIX}_set_decrypt_key
	.rva	.LSEH_end_${PREFIX}_set_decrypt_key
	.rva	.LSEH_info_${PREFIX}_set_decrypt_key

	.rva	.LSEH_begin_${PREFIX}_encrypt
	.rva	.LSEH_end_${PREFIX}_encrypt
	.rva	.LSEH_info_${PREFIX}_encrypt

	.rva	.LSEH_begin_${PREFIX}_decrypt
	.rva	.LSEH_end_${PREFIX}_decrypt
	.rva	.LSEH_info_${PREFIX}_decrypt

	.rva	.LSEH_begin_${PREFIX}_cbc_encrypt
	.rva	.LSEH_end_${PREFIX}_cbc_encrypt
	.rva	.LSEH_info_${PREFIX}_cbc_encrypt

.section	.xdata
.align	8
.LSEH_info_${PREFIX}_set_encrypt_key:
	.byte	9,0,0,0
	.rva	se_handler
	.rva	.Lenc_key_body,.Lenc_key_epilogue	# HandlerData[]
.LSEH_info_${PREFIX}_set_decrypt_key:
	.byte	9,0,0,0
	.rva	se_handler
	.rva	.Ldec_key_body,.Ldec_key_epilogue	# HandlerData[]
.LSEH_info_${PREFIX}_encrypt:
	.byte	9,0,0,0
	.rva	se_handler
	.rva	.Lenc_body,.Lenc_epilogue		# HandlerData[]
.LSEH_info_${PREFIX}_decrypt:
	.byte	9,0,0,0
	.rva	se_handler
	.rva	.Ldec_body,.Ldec_epilogue		# HandlerData[]
.LSEH_info_${PREFIX}_cbc_encrypt:
	.byte	9,0,0,0
	.rva	se_handler
	.rva	.Lcbc_body,.Lcbc_epilogue		# HandlerData[]
___
}

$code =~ s/\`([^\`]*)\`/eval($1)/gem;

print $code;

close STDOUT or die "error closing STDOUT: $!";


#! /usr/bin/env perl
# Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License").  You may not use
# this file except in compliance with the License.  You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html

use strict;

my ($i, @arr);

# Set up an array with the type of ASCII characters
# Each set bit represents a character property.

# RFC2253 character properties
my $RFC2253_ESC = 1;	# Character escaped with \
my $ESC_CTRL	= 2;	# Escaped control character
# These are used with RFC1779 quoting using "
my $NOESC_QUOTE	= 8;	# Not escaped if quoted
my $PSTRING_CHAR = 0x10;	# Valid PrintableString character
my $RFC2253_FIRST_ESC = 0x20; # Escaped with \ if first character
my $RFC2253_LAST_ESC = 0x40;  # Escaped with \ if last character
my $RFC2254_ESC = 0x400;	# Character escaped \XX
my $HOST_ANY = 0x1000;      # Valid hostname character anywhere in label
my $HOST_DOT = 0x2000;  # Dot: hostname label separator
my $HOST_HYPHEN = 0x4000; # Hyphen: not valid at start or end.
my $HOST_WILD = 0x8000; # Wildcard character

for($i = 0; $i < 128; $i++) {
	# Set the RFC2253 escape characters (control)
	$arr[$i] = 0;
	if(($i < 32) || ($i > 126)) {
		$arr[$i] |= $ESC_CTRL;
	}

	# Some PrintableString characters
	if(		   ( ( $i >= ord("a")) && ( $i <= ord("z")) )
			|| (  ( $i >= ord("A")) && ( $i <= ord("Z")) )
			|| (  ( $i >= ord("0")) && ( $i <= ord("9")) )  ) {
		$arr[$i] |= $PSTRING_CHAR | $HOST_ANY;
	}
}

# Now setup the rest

# Remaining RFC2253 escaped characters

$arr[ord(" ")] |= $NOESC_QUOTE | $RFC2253_FIRST_ESC | $RFC2253_LAST_ESC;
$arr[ord("#")] |= $NOESC_QUOTE | $RFC2253_FIRST_ESC;

$arr[ord(",")] |= $NOESC_QUOTE | $RFC2253_ESC;
$arr[ord("+")] |= $NOESC_QUOTE | $RFC2253_ESC;
$arr[ord("\"")] |= $RFC2253_ESC;
$arr[ord("\\")] |= $RFC2253_ESC;
$arr[ord("<")] |= $NOESC_QUOTE | $RFC2253_ESC;
$arr[ord(">")] |= $NOESC_QUOTE | $RFC2253_ESC;
$arr[ord(";")] |= $NOESC_QUOTE | $RFC2253_ESC;

# Remaining RFC2254 characters

$arr[0] |= $RFC2254_ESC;
$arr[ord("(")] |= $RFC2254_ESC;
$arr[ord(")")] |= $RFC2254_ESC;
$arr[ord("*")] |= $RFC2254_ESC | $HOST_WILD;
$arr[ord("\\")] |= $RFC2254_ESC;

# Remaining PrintableString characters

$arr[ord(" ")] |= $PSTRING_CHAR;
$arr[ord("'")] |= $PSTRING_CHAR;
$arr[ord("(")] |= $PSTRING_CHAR;
$arr[ord(")")] |= $PSTRING_CHAR;
$arr[ord("+")] |= $PSTRING_CHAR;
$arr[ord(",")] |= $PSTRING_CHAR;
$arr[ord("-")] |= $PSTRING_CHAR | $HOST_HYPHEN;
$arr[ord(".")] |= $PSTRING_CHAR | $HOST_DOT;
$arr[ord("/")] |= $PSTRING_CHAR;
$arr[ord(":")] |= $PSTRING_CHAR;
$arr[ord("=")] |= $PSTRING_CHAR;
$arr[ord("?")] |= $PSTRING_CHAR;

# Now generate the C code

# Output year depends on the year of the script.
my $YEAR = [localtime([stat($0)]->[9])]->[5] + 1900;
print <<EOF;
/*
 * WARNING: do not edit!
 * Generated by crypto/asn1/charmap.pl
 *
 * Copyright 2000-$YEAR The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#define CHARTYPE_HOST_ANY $HOST_ANY
#define CHARTYPE_HOST_DOT $HOST_DOT
#define CHARTYPE_HOST_HYPHEN $HOST_HYPHEN
#define CHARTYPE_HOST_WILD $HOST_WILD

/*
 * Mask of various character properties
 */

static const unsigned short char_type[] = {
EOF

print "   ";
for($i = 0; $i < 128; $i++) {
	print("\n   ") if($i && (($i % 12) == 0));
	printf(" %4d", $arr[$i]);
	print(",") if ($i != 127);
}
print("\n};\n");


#! /usr/bin/env perl
# Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License").  You may not use
# this file except in compliance with the License.  You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html

$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
push(@INC,"${dir}","${dir}../../perlasm");
require "x86asm.pl";
require "cbc.pl";

$output = pop;
open STDOUT,">$output";

&asm_init($ARGV[0],$ARGV[$#ARGV] eq "386");

$BF_ROUNDS=16;
$BF_OFF=($BF_ROUNDS+2)*4;
$L="edi";
$R="esi";
$P="ebp";
$tmp1="eax";
$tmp2="ebx";
$tmp3="ecx";
$tmp4="edx";

&BF_encrypt("BF_encrypt",1);
&BF_encrypt("BF_decrypt",0);
&cbc("BF_cbc_encrypt","BF_encrypt","BF_decrypt",1,4,5,3,-1,-1);
&asm_finish();

close STDOUT or die "error closing STDOUT: $!";

sub BF_encrypt
	{
	local($name,$enc)=@_;

	&function_begin_B($name,"");

	&comment("");

	&push("ebp");
	&push("ebx");
	&mov($tmp2,&wparam(0));
	&mov($P,&wparam(1));
	&push("esi");
	&push("edi");

	&comment("Load the 2 words");
	&mov($L,&DWP(0,$tmp2,"",0));
	&mov($R,&DWP(4,$tmp2,"",0));

	&xor(	$tmp1,	$tmp1);

	# encrypting part

	if ($enc)
		{
		 &mov($tmp2,&DWP(0,$P,"",0));
		&xor(	$tmp3,	$tmp3);

		&xor($L,$tmp2);
		for ($i=0; $i<$BF_ROUNDS; $i+=2)
			{
			&comment("");
			&comment("Round $i");
			&BF_ENCRYPT($i+1,$R,$L,$P,$tmp1,$tmp2,$tmp3,$tmp4,1);

			&comment("");
			&comment("Round ".sprintf("%d",$i+1));
			&BF_ENCRYPT($i+2,$L,$R,$P,$tmp1,$tmp2,$tmp3,$tmp4,1);
			}
		# &mov($tmp1,&wparam(0)); In last loop
		&mov($tmp4,&DWP(($BF_ROUNDS+1)*4,$P,"",0));
		}
	else
		{
		 &mov($tmp2,&DWP(($BF_ROUNDS+1)*4,$P,"",0));
		&xor(	$tmp3,	$tmp3);

		&xor($L,$tmp2);
		for ($i=$BF_ROUNDS; $i>0; $i-=2)
			{
			&comment("");
			&comment("Round $i");
			&BF_ENCRYPT($i,$R,$L,$P,$tmp1,$tmp2,$tmp3,$tmp4,0);
			&comment("");
			&comment("Round ".sprintf("%d",$i-1));
			&BF_ENCRYPT($i-1,$L,$R,$P,$tmp1,$tmp2,$tmp3,$tmp4,0);
			}
		# &mov($tmp1,&wparam(0)); In last loop
		&mov($tmp4,&DWP(0,$P,"",0));
		}

	&xor($R,$tmp4);
	&mov(&DWP(4,$tmp1,"",0),$L);

	&mov(&DWP(0,$tmp1,"",0),$R);
	&function_end($name);
	}

sub BF_ENCRYPT
	{
	local($i,$L,$R,$P,$tmp1,$tmp2,$tmp3,$tmp4,$enc)=@_;

	&mov(	$tmp4,		&DWP(&n2a($i*4),$P,"",0)); # for next round

	&mov(	$tmp2,		$R);
	&xor(	$L,		$tmp4);

	&shr(	$tmp2,		16);
	&mov(	$tmp4,		$R);

	&movb(	&LB($tmp1),	&HB($tmp2));	# A
	&and(	$tmp2,		0xff);		# B

	&movb(	&LB($tmp3),	&HB($tmp4));	# C
	&and(	$tmp4,		0xff);		# D

	&mov(	$tmp1,		&DWP(&n2a($BF_OFF+0x0000),$P,$tmp1,4));
	&mov(	$tmp2,		&DWP(&n2a($BF_OFF+0x0400),$P,$tmp2,4));

	&add(	$tmp2,		$tmp1);
	&mov(	$tmp1,		&DWP(&n2a($BF_OFF+0x0800),$P,$tmp3,4));

	&xor(	$tmp2,		$tmp1);
	&mov(	$tmp4,		&DWP(&n2a($BF_OFF+0x0C00),$P,$tmp4,4));

	&add(	$tmp2,		$tmp4);
	if (($enc && ($i != 16)) || ((!$enc) && ($i != 1)))
		{ &xor(	$tmp1,		$tmp1); }
	else
		{
		&comment("Load parameter 0 ($i) enc=$enc");
		&mov($tmp1,&wparam(0));
		} # In last loop

	&xor(	$L,		$tmp2);
	# delay
	}

sub n2a
	{
	sprintf("%d",$_[0]);
	}


#! /usr/bin/env perl
# Copyright 1998-2019 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License").  You may not use
# this file except in compliance with the License.  You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html

# Output year depends on the year of the script.
my $YEAR = [localtime([stat($0)]->[9])]->[5] + 1900;
print <<"EOF";
/*
 * WARNING: do not edit!
 * Generated by crypto/bn/bn_prime.pl
 *
 * Copyright 1998-$YEAR The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

EOF

my $num = shift || 2048;
my @primes = ( 2 );
my $p = 1;
loop: while ($#primes < $num-1) {
    $p += 2;
    my $s = int(sqrt($p));

    for (my $i = 0; defined($primes[$i]) && $primes[$i] <= $s; $i++) {
        next loop if ($p % $primes[$i]) == 0;
    }
    push(@primes, $p);
}

print "typedef unsigned short prime_t;\n";
printf "# define NUMPRIMES %d\n\n", $num;

printf "static const prime_t primes[%d] = {", $num;
for (my $i = 0; $i <= $#primes; $i++) {
    printf "\n   " if ($i % 8) == 0;
    printf " %5d,", $primes[$i];
}
print "\n};\n";


#! /usr/bin/env perl
# Copyright 2006-2020 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License").  You may not use
# this file except in compliance with the License.  You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html

#
# ====================================================================
# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
#
# On 21264 RSA sign performance improves by 70/35/20/15 percent for
# 512/1024/2048/4096 bit key lengths. This is against vendor compiler
# instructed to '-tune host' code with in-line assembler. Other
# benchmarks improve by 15-20%. To anchor it to something else, the
# code provides approximately the same performance per GHz as AMD64.
# I.e. if you compare 1GHz 21264 and 2GHz Opteron, you'll observe ~2x
# difference.

$output=pop;
open STDOUT,">$output";

# int bn_mul_mont(
$rp="a0";	# BN_ULONG *rp,
$ap="a1";	# const BN_ULONG *ap,
$bp="a2";	# const BN_ULONG *bp,
$np="a3";	# const BN_ULONG *np,
$n0="a4";	# const BN_ULONG *n0,
$num="a5";	# int num);

$lo0="t0";
$hi0="t1";
$lo1="t2";
$hi1="t3";
$aj="t4";
$bi="t5";
$nj="t6";
$tp="t7";
$alo="t8";
$ahi="t9";
$nlo="t10";
$nhi="t11";
$tj="t12";
$i="s3";
$j="s4";
$m1="s5";

$code=<<___;
#ifdef __linux__
#include <asm/regdef.h>
#else
#include <asm.h>
#include <regdef.h>
#endif

.text

.set	noat
.set	noreorder

.globl	bn_mul_mont
.align	5
.ent	bn_mul_mont
bn_mul_mont:
	lda	sp,-48(sp)
	stq	ra,0(sp)
	stq	s3,8(sp)
	stq	s4,16(sp)
	stq	s5,24(sp)
	stq	fp,32(sp)
	mov	sp,fp
	.mask	0x0400f000,-48
	.frame	fp,48,ra
	.prologue 0

	.align	4
	.set	reorder
	sextl	$num,$num
	mov	0,v0
	cmplt	$num,4,AT
	bne	AT,.Lexit

	ldq	$hi0,0($ap)	# ap[0]
	s8addq	$num,16,AT
	ldq	$aj,8($ap)
	subq	sp,AT,sp
	ldq	$bi,0($bp)	# bp[0]
	lda	AT,-4096(zero)	# mov	-4096,AT
	ldq	$n0,0($n0)
	and	sp,AT,sp

	mulq	$hi0,$bi,$lo0
	ldq	$hi1,0($np)	# np[0]
	umulh	$hi0,$bi,$hi0
	ldq	$nj,8($np)

	mulq	$lo0,$n0,$m1

	mulq	$hi1,$m1,$lo1
	umulh	$hi1,$m1,$hi1

	addq	$lo1,$lo0,$lo1
	cmpult	$lo1,$lo0,AT
	addq	$hi1,AT,$hi1

	mulq	$aj,$bi,$alo
	mov	2,$j
	umulh	$aj,$bi,$ahi
	mov	sp,$tp

	mulq	$nj,$m1,$nlo
	s8addq	$j,$ap,$aj
	umulh	$nj,$m1,$nhi
	s8addq	$j,$np,$nj
.align	4
.L1st:
	.set	noreorder
	ldq	$aj,0($aj)
	addl	$j,1,$j
	ldq	$nj,0($nj)
	lda	$tp,8($tp)

	addq	$alo,$hi0,$lo0
	mulq	$aj,$bi,$alo
	cmpult	$lo0,$hi0,AT
	addq	$nlo,$hi1,$lo1

	mulq	$nj,$m1,$nlo
	addq	$ahi,AT,$hi0
	cmpult	$lo1,$hi1,v0
	cmplt	$j,$num,$tj

	umulh	$aj,$bi,$ahi
	addq	$nhi,v0,$hi1
	addq	$lo1,$lo0,$lo1
	s8addq	$j,$ap,$aj

	umulh	$nj,$m1,$nhi
	cmpult	$lo1,$lo0,v0
	addq	$hi1,v0,$hi1
	s8addq	$j,$np,$nj

	stq	$lo1,-8($tp)
	nop
	unop
	bne	$tj,.L1st
	.set	reorder

	addq	$alo,$hi0,$lo0
	addq	$nlo,$hi1,$lo1
	cmpult	$lo0,$hi0,AT
	cmpult	$lo1,$hi1,v0
	addq	$ahi,AT,$hi0
	addq	$nhi,v0,$hi1

	addq	$lo1,$lo0,$lo1
	cmpult	$lo1,$lo0,v0
	addq	$hi1,v0,$hi1

	stq	$lo1,0($tp)

	addq	$hi1,$hi0,$hi1
	cmpult	$hi1,$hi0,AT
	stq	$hi1,8($tp)
	stq	AT,16($tp)

	mov	1,$i
.align	4
.Louter:
	s8addq	$i,$bp,$bi
	ldq	$hi0,0($ap)
	ldq	$aj,8($ap)
	ldq	$bi,0($bi)
	ldq	$hi1,0($np)
	ldq	$nj,8($np)
	ldq	$tj,0(sp)

	mulq	$hi0,$bi,$lo0
	umulh	$hi0,$bi,$hi0

	addq	$lo0,$tj,$lo0
	cmpult	$lo0,$tj,AT
	addq	$hi0,AT,$hi0

	mulq	$lo0,$n0,$m1

	mulq	$hi1,$m1,$lo1
	umulh	$hi1,$m1,$hi1

	addq	$lo1,$lo0,$lo1
	cmpult	$lo1,$lo0,AT
	mov	2,$j
	addq	$hi1,AT,$hi1

	mulq	$aj,$bi,$alo
	mov	sp,$tp
	umulh	$aj,$bi,$ahi

	mulq	$nj,$m1,$nlo
	s8addq	$j,$ap,$aj
	umulh	$nj,$m1,$nhi
.align	4
.Linner:
	.set	noreorder
	ldq	$tj,8($tp)	#L0
	nop			#U1
	ldq	$aj,0($aj)	#L1
	s8addq	$j,$np,$nj	#U0

	ldq	$nj,0($nj)	#L0
	nop			#U1
	addq	$alo,$hi0,$lo0	#L1
	lda	$tp,8($tp)

	mulq	$aj,$bi,$alo	#U1
	cmpult	$lo0,$hi0,AT	#L0
	addq	$nlo,$hi1,$lo1	#L1
	addl	$j,1,$j

	mulq	$nj,$m1,$nlo	#U1
	addq	$ahi,AT,$hi0	#L0
	addq	$lo0,$tj,$lo0	#L1
	cmpult	$lo1,$hi1,v0	#U0

	umulh	$aj,$bi,$ahi	#U1
	cmpult	$lo0,$tj,AT	#L0
	addq	$lo1,$lo0,$lo1	#L1
	addq	$nhi,v0,$hi1	#U0

	umulh	$nj,$m1,$nhi	#U1
	s8addq	$j,$ap,$aj	#L0
	cmpult	$lo1,$lo0,v0	#L1
	cmplt	$j,$num,$tj	#U0	# borrow $tj

	addq	$hi0,AT,$hi0	#L0
	addq	$hi1,v0,$hi1	#U1
	stq	$lo1,-8($tp)	#L1
	bne	$tj,.Linner	#U0
	.set	reorder

	ldq	$tj,8($tp)
	addq	$alo,$hi0,$lo0
	addq	$nlo,$hi1,$lo1
	cmpult	$lo0,$hi0,AT
	cmpult	$lo1,$hi1,v0
	addq	$ahi,AT,$hi0
	addq	$nhi,v0,$hi1

	addq	$lo0,$tj,$lo0
	cmpult	$lo0,$tj,AT
	addq	$hi0,AT,$hi0

	ldq	$tj,16($tp)
	addq	$lo1,$lo0,$j
	cmpult	$j,$lo0,v0
	addq	$hi1,v0,$hi1

	addq	$hi1,$hi0,$lo1
	stq	$j,0($tp)
	cmpult	$lo1,$hi0,$hi1
	addq	$lo1,$tj,$lo1
	cmpult	$lo1,$tj,AT
	addl	$i,1,$i
	addq	$hi1,AT,$hi1
	stq	$lo1,8($tp)
	cmplt	$i,$num,$tj	# borrow $tj
	stq	$hi1,16($tp)
	bne	$tj,.Louter

	s8addq	$num,sp,$tj	# &tp[num]
	mov	$rp,$bp		# put rp aside
	mov	sp,$tp
	mov	sp,$ap
	mov	0,$hi0		# clear borrow bit

.align	4
.Lsub:	ldq	$lo0,0($tp)
	ldq	$lo1,0($np)
	lda	$tp,8($tp)
	lda	$np,8($np)
	subq	$lo0,$lo1,$lo1	# tp[i]-np[i]
	cmpult	$lo0,$lo1,AT
	subq	$lo1,$hi0,$lo0
	cmpult	$lo1,$lo0,$hi0
	or	$hi0,AT,$hi0
	stq	$lo0,0($rp)
	cmpult	$tp,$tj,v0
	lda	$rp,8($rp)
	bne	v0,.Lsub

	subq	$hi1,$hi0,$hi0	# handle upmost overflow bit
	mov	sp,$tp
	mov	$bp,$rp		# restore rp

.align	4
.Lcopy:	ldq	$aj,0($tp)	# conditional copy
	ldq	$nj,0($rp)
	lda	$tp,8($tp)
	lda	$rp,8($rp)
	cmoveq	$hi0,$nj,$aj
	stq	zero,-8($tp)	# zap tp
	cmpult	$tp,$tj,AT
	stq	$aj,-8($rp)
	bne	AT,.Lcopy
	mov	1,v0

.Lexit:
	.set	noreorder
	mov	fp,sp
	/*ldq	ra,0(sp)*/
	ldq	s3,8(sp)
	ldq	s4,16(sp)
	ldq	s5,24(sp)
	ldq	fp,32(sp)
	lda	sp,48(sp)
	ret	(ra)
.end	bn_mul_mont
.ascii	"Montgomery Multiplication for Alpha, CRYPTOGAMS by <appro\@openssl.org>"
.align	2
___

print $code;
close STDOUT or die "error closing STDOUT: $!";


#! /usr/bin/env perl
# Copyright 2011-2020 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License").  You may not use
# this file except in compliance with the License.  You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html

#
# ====================================================================
# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
#
# May 2011
#
# The module implements bn_GF2m_mul_2x2 polynomial multiplication
# used in bn_gf2m.c. It's kind of low-hanging mechanical port from
# C for the time being... Except that it has two code paths: pure
# integer code suitable for any ARMv4 and later CPU and NEON code
# suitable for ARMv7. Pure integer 1x1 multiplication subroutine runs
# in ~45 cycles on dual-issue core such as Cortex A8, which is ~50%
# faster than compiler-generated code. For ECDH and ECDSA verify (but
# not for ECDSA sign) it means 25%-45% improvement depending on key
# length, more for longer keys. Even though NEON 1x1 multiplication
# runs in even less cycles, ~30, improvement is measurable only on
# longer keys. One has to optimize code elsewhere to get NEON glow...
#
# April 2014
#
# Double bn_GF2m_mul_2x2 performance by using algorithm from paper
# referred below, which improves ECDH and ECDSA verify benchmarks
# by 18-40%.
#
# CÃ¢mara, D.; GouvÃªa, C. P. L.; LÃ³pez, J. & Dahab, R.: Fast Software
# Polynomial Multiplication on ARM Processors using the NEON Engine.
#
# http://conradoplg.cryptoland.net/files/2010/12/mocrysen13.pdf

$flavour = shift;
if ($flavour=~/\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; }
else { while (($output=shift) && ($output!~/\w[\w\-]*\.\w+$/)) {} }

if ($flavour && $flavour ne "void") {
    $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
    ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
    ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
    die "can't locate arm-xlate.pl";

    open STDOUT,"| \"$^X\" $xlate $flavour $output";
} else {
    open STDOUT,">$output";
}

$code=<<___;
#include "arm_arch.h"

.text
#if defined(__thumb2__)
.syntax	unified
.thumb
#else
.code	32
#endif
___
################
# private interface to mul_1x1_ialu
#
$a="r1";
$b="r0";

($a0,$a1,$a2,$a12,$a4,$a14)=
($hi,$lo,$t0,$t1, $i0,$i1 )=map("r$_",(4..9),12);

$mask="r12";

$code.=<<___;
.type	mul_1x1_ialu,%function
.align	5
mul_1x1_ialu:
	mov	$a0,#0
	bic	$a1,$a,#3<<30		@ a1=a&0x3fffffff
	str	$a0,[sp,#0]		@ tab[0]=0
	add	$a2,$a1,$a1		@ a2=a1<<1
	str	$a1,[sp,#4]		@ tab[1]=a1
	eor	$a12,$a1,$a2		@ a1^a2
	str	$a2,[sp,#8]		@ tab[2]=a2
	mov	$a4,$a1,lsl#2		@ a4=a1<<2
	str	$a12,[sp,#12]		@ tab[3]=a1^a2
	eor	$a14,$a1,$a4		@ a1^a4
	str	$a4,[sp,#16]		@ tab[4]=a4
	eor	$a0,$a2,$a4		@ a2^a4
	str	$a14,[sp,#20]		@ tab[5]=a1^a4
	eor	$a12,$a12,$a4		@ a1^a2^a4
	str	$a0,[sp,#24]		@ tab[6]=a2^a4
	and	$i0,$mask,$b,lsl#2
	str	$a12,[sp,#28]		@ tab[7]=a1^a2^a4

	and	$i1,$mask,$b,lsr#1
	ldr	$lo,[sp,$i0]		@ tab[b       & 0x7]
	and	$i0,$mask,$b,lsr#4
	ldr	$t1,[sp,$i1]		@ tab[b >>  3 & 0x7]
	and	$i1,$mask,$b,lsr#7
	ldr	$t0,[sp,$i0]		@ tab[b >>  6 & 0x7]
	eor	$lo,$lo,$t1,lsl#3	@ stall
	mov	$hi,$t1,lsr#29
	ldr	$t1,[sp,$i1]		@ tab[b >>  9 & 0x7]

	and	$i0,$mask,$b,lsr#10
	eor	$lo,$lo,$t0,lsl#6
	eor	$hi,$hi,$t0,lsr#26
	ldr	$t0,[sp,$i0]		@ tab[b >> 12 & 0x7]

	and	$i1,$mask,$b,lsr#13
	eor	$lo,$lo,$t1,lsl#9
	eor	$hi,$hi,$t1,lsr#23
	ldr	$t1,[sp,$i1]		@ tab[b >> 15 & 0x7]

	and	$i0,$mask,$b,lsr#16
	eor	$lo,$lo,$t0,lsl#12
	eor	$hi,$hi,$t0,lsr#20
	ldr	$t0,[sp,$i0]		@ tab[b >> 18 & 0x7]

	and	$i1,$mask,$b,lsr#19
	eor	$lo,$lo,$t1,lsl#15
	eor	$hi,$hi,$t1,lsr#17
	ldr	$t1,[sp,$i1]		@ tab[b >> 21 & 0x7]

	and	$i0,$mask,$b,lsr#22
	eor	$lo,$lo,$t0,lsl#18
	eor	$hi,$hi,$t0,lsr#14
	ldr	$t0,[sp,$i0]		@ tab[b >> 24 & 0x7]

	and	$i1,$mask,$b,lsr#25
	eor	$lo,$lo,$t1,lsl#21
	eor	$hi,$hi,$t1,lsr#11
	ldr	$t1,[sp,$i1]		@ tab[b >> 27 & 0x7]

	tst	$a,#1<<30
	and	$i0,$mask,$b,lsr#28
	eor	$lo,$lo,$t0,lsl#24
	eor	$hi,$hi,$t0,lsr#8
	ldr	$t0,[sp,$i0]		@ tab[b >> 30      ]

#ifdef	__thumb2__
	itt	ne
#endif
	eorne	$lo,$lo,$b,lsl#30
	eorne	$hi,$hi,$b,lsr#2
	tst	$a,#1<<31
	eor	$lo,$lo,$t1,lsl#27
	eor	$hi,$hi,$t1,lsr#5
#ifdef	__thumb2__
	itt	ne
#endif
	eorne	$lo,$lo,$b,lsl#31
	eorne	$hi,$hi,$b,lsr#1
	eor	$lo,$lo,$t0,lsl#30
	eor	$hi,$hi,$t0,lsr#2

	mov	pc,lr
.size	mul_1x1_ialu,.-mul_1x1_ialu
___
################
# void	bn_GF2m_mul_2x2(BN_ULONG *r,
#	BN_ULONG a1,BN_ULONG a0,
#	BN_ULONG b1,BN_ULONG b0);	# r[3..0]=a1a0Â·b1b0
{
$code.=<<___;
.global	bn_GF2m_mul_2x2
.type	bn_GF2m_mul_2x2,%function
.align	5
bn_GF2m_mul_2x2:
#if __ARM_MAX_ARCH__>=7
	stmdb	sp!,{r10,lr}
	ldr	r12,.LOPENSSL_armcap
	adr	r10,.LOPENSSL_armcap
	ldr	r12,[r12,r10]
#ifdef	__APPLE__
	ldr	r12,[r12]
#endif
	tst	r12,#ARMV7_NEON
	itt	ne
	ldrne	r10,[sp],#8
	bne	.LNEON
	stmdb	sp!,{r4-r9}
#else
	stmdb	sp!,{r4-r10,lr}
#endif
___
$ret="r10";	# reassigned 1st argument
$code.=<<___;
	mov	$ret,r0			@ reassign 1st argument
	mov	$b,r3			@ $b=b1
	sub	r7,sp,#36
	mov	r8,sp
	and	r7,r7,#-32
	ldr	r3,[sp,#32]		@ load b0
	mov	$mask,#7<<2
	mov	sp,r7			@ allocate tab[8]
	str	r8,[r7,#32]

	bl	mul_1x1_ialu		@ a1Â·b1
	str	$lo,[$ret,#8]
	str	$hi,[$ret,#12]

	eor	$b,$b,r3		@ flip b0 and b1
	 eor	$a,$a,r2		@ flip a0 and a1
	eor	r3,r3,$b
	 eor	r2,r2,$a
	eor	$b,$b,r3
	 eor	$a,$a,r2
	bl	mul_1x1_ialu		@ a0Â·b0
	str	$lo,[$ret]
	str	$hi,[$ret,#4]

	eor	$a,$a,r2
	eor	$b,$b,r3
	bl	mul_1x1_ialu		@ (a1+a0)Â·(b1+b0)
___
@r=map("r$_",(6..9));
$code.=<<___;
	ldmia	$ret,{@r[0]-@r[3]}
	eor	$lo,$lo,$hi
	ldr	sp,[sp,#32]		@ destroy tab[8]
	eor	$hi,$hi,@r[1]
	eor	$lo,$lo,@r[0]
	eor	$hi,$hi,@r[2]
	eor	$lo,$lo,@r[3]
	eor	$hi,$hi,@r[3]
	str	$hi,[$ret,#8]
	eor	$lo,$lo,$hi
	str	$lo,[$ret,#4]

#if __ARM_ARCH__>=5
	ldmia	sp!,{r4-r10,pc}
#else
	ldmia	sp!,{r4-r10,lr}
	tst	lr,#1
	moveq	pc,lr			@ be binary compatible with V4, yet
	bx	lr			@ interoperable with Thumb ISA:-)
#endif
___
}
{
my ($r,$t0,$t1,$t2,$t3)=map("q$_",(0..3,8..12));
my ($a,$b,$k48,$k32,$k16)=map("d$_",(26..31));

$code.=<<___;
#if __ARM_MAX_ARCH__>=7
.arch	armv7-a
.fpu	neon

.align	5
.LNEON:
	ldr		r12, [sp]		@ 5th argument
	vmov		$a, r2, r1
	vmov		$b, r12, r3
	vmov.i64	$k48, #0x0000ffffffffffff
	vmov.i64	$k32, #0x00000000ffffffff
	vmov.i64	$k16, #0x000000000000ffff

	vext.8		$t0#lo, $a, $a, #1	@ A1
	vmull.p8	$t0, $t0#lo, $b		@ F = A1*B
	vext.8		$r#lo, $b, $b, #1	@ B1
	vmull.p8	$r, $a, $r#lo		@ E = A*B1
	vext.8		$t1#lo, $a, $a, #2	@ A2
	vmull.p8	$t1, $t1#lo, $b		@ H = A2*B
	vext.8		$t3#lo, $b, $b, #2	@ B2
	vmull.p8	$t3, $a, $t3#lo		@ G = A*B2
	vext.8		$t2#lo, $a, $a, #3	@ A3
	veor		$t0, $t0, $r		@ L = E + F
	vmull.p8	$t2, $t2#lo, $b		@ J = A3*B
	vext.8		$r#lo, $b, $b, #3	@ B3
	veor		$t1, $t1, $t3		@ M = G + H
	vmull.p8	$r, $a, $r#lo		@ I = A*B3
	veor		$t0#lo, $t0#lo, $t0#hi	@ t0 = (L) (P0 + P1) << 8
	vand		$t0#hi, $t0#hi, $k48
	vext.8		$t3#lo, $b, $b, #4	@ B4
	veor		$t1#lo, $t1#lo, $t1#hi	@ t1 = (M) (P2 + P3) << 16
	vand		$t1#hi, $t1#hi, $k32
	vmull.p8	$t3, $a, $t3#lo		@ K = A*B4
	veor		$t2, $t2, $r		@ N = I + J
	veor		$t0#lo, $t0#lo, $t0#hi
	veor		$t1#lo, $t1#lo, $t1#hi
	veor		$t2#lo, $t2#lo, $t2#hi	@ t2 = (N) (P4 + P5) << 24
	vand		$t2#hi, $t2#hi, $k16
	vext.8		$t0, $t0, $t0, #15
	veor		$t3#lo, $t3#lo, $t3#hi	@ t3 = (K) (P6 + P7) << 32
	vmov.i64	$t3#hi, #0
	vext.8		$t1, $t1, $t1, #14
	veor		$t2#lo, $t2#lo, $t2#hi
	vmull.p8	$r, $a, $b		@ D = A*B
	vext.8		$t3, $t3, $t3, #12
	vext.8		$t2, $t2, $t2, #13
	veor		$t0, $t0, $t1
	veor		$t2, $t2, $t3
	veor		$r, $r, $t0
	veor		$r, $r, $t2

	vst1.32		{$r}, [r0]
	ret		@ bx lr
#endif
___
}
$code.=<<___;
.size	bn_GF2m_mul_2x2,.-bn_GF2m_mul_2x2
#if __ARM_MAX_ARCH__>=7
.align	5
.LOPENSSL_armcap:
.word	OPENSSL_armcap_P-.
#endif
.asciz	"GF(2^m) Multiplication for ARMv4/NEON, CRYPTOGAMS by <appro\@openssl.org>"
.align	5

#if __ARM_MAX_ARCH__>=7
.comm	OPENSSL_armcap_P,4,4
#endif
___

foreach (split("\n",$code)) {
	s/\`([^\`]*)\`/eval $1/geo;

	s/\bq([0-9]+)#(lo|hi)/sprintf "d%d",2*$1+($2 eq "hi")/geo	or
	s/\bret\b/bx	lr/go		or
	s/\bbx\s+lr\b/.word\t0xe12fff1e/go;    # make it possible to compile with -march=armv4

	print $_,"\n";
}
close STDOUT or die "error closing STDOUT: $!";   # enforce flush