From b5c54c914fcbd07752c358e0d14b7e56706195a3 Mon Sep 17 00:00:00 2001
From: Andy Polyakov <appro@openssl.org>
Date: Wed, 27 Nov 2013 22:32:56 +0100
Subject: [PATCH] Add Vector Permutation AES for PPC.

---
 crypto/aes/Makefile         |    2 +
 crypto/aes/asm/vpaes-ppc.pl | 1224 +++++++++++++++++++++++++++++++++++
 2 files changed, 1226 insertions(+)
 create mode 100644 crypto/aes/asm/vpaes-ppc.pl

diff --git a/crypto/aes/Makefile b/crypto/aes/Makefile
index ecb75a0316..fe91054465 100644
--- a/crypto/aes/Makefile
+++ b/crypto/aes/Makefile
@@ -77,6 +77,8 @@ aest4-sparcv9.s: asm/aest4-sparcv9.pl
 
 aes-ppc.s:	asm/aes-ppc.pl
 	$(PERL) asm/aes-ppc.pl $(PERLASM_SCHEME) $@
+vpaes-ppc.s:	asm/vpaes-ppc.pl
+	$(PERL) asm/vpaes-ppc.pl $(PERLASM_SCHEME) $@
 
 aes-parisc.s:	asm/aes-parisc.pl
 	$(PERL) asm/aes-parisc.pl $(PERLASM_SCHEME) $@
diff --git a/crypto/aes/asm/vpaes-ppc.pl b/crypto/aes/asm/vpaes-ppc.pl
new file mode 100644
index 0000000000..84e4fdbc23
--- /dev/null
+++ b/crypto/aes/asm/vpaes-ppc.pl
@@ -0,0 +1,1224 @@
+#!/usr/bin/env perl
+
+######################################################################
+## Constant-time SSSE3 AES core implementation.
+## version 0.1
+##
+## By Mike Hamburg (Stanford University), 2009
+## Public domain.
+##
+## For details see http://shiftleft.org/papers/vector_aes/ and
+## http://crypto.stanford.edu/vpaes/.
+
+# CBC encrypt/decrypt performance in cycles per byte processed with
+# 128-bit key.
+#
+#		aes-ppc.pl		this
+# G4e		35.5/52.1/(23.8)	11.9(*)/15.4
+# POWER6	42.7/54.3/(28.2)	63.0/92.8(**)
+# POWER7	32.3/42.9/(18.4)	18.5/23.3
+#
+# (*)	This is ~10% worse than reported in paper. The reason is
+#	twofold. This module doesn't make any assumption about
+#	key schedule (or data for that matter) alignment and handles
+#	it in-line. Secondly it, being transliterated from
+#	vpaes-x86_64.pl, relies on "nested inversion" better suited
+#	for Intel CPUs.
+# (**)	Inadequate POWER6 performance is due to astronomic AltiVec
+#	latency, 9 cycles per simple logical operation.
+
+$flavour = shift;
+
+if ($flavour =~ /64/) {
+	$SIZE_T	=8;
+	$LRSAVE	=2*$SIZE_T;
+	$STU	="stdu";
+	$POP	="ld";
+	$PUSH	="std";
+} elsif ($flavour =~ /32/) {
+	$SIZE_T	=4;
+	$LRSAVE	=$SIZE_T;
+	$STU	="stwu";
+	$POP	="lwz";
+	$PUSH	="stw";
+} else { die "nonsense $flavour"; }
+
+$sp="r1";
+$FRAME=8*$SIZE_T;
+
+$0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+( $xlate="${dir}ppc-xlate.pl" and -f $xlate ) or
+( $xlate="${dir}../../perlasm/ppc-xlate.pl" and -f $xlate) or
+die "can't locate ppc-xlate.pl";
+
+open STDOUT,"| $^X $xlate $flavour ".shift || die "can't call $xlate: $!";
+
+$code.=<<___;
+.machine	"any"
+
+.text
+
+.align	7	# totally strategic alignment
+_vpaes_consts:
+Lk_mc_forward:	# mc_forward
+	.long	0x01020300, 0x05060704, 0x090a0b08, 0x0d0e0f0c
+	.long	0x05060704, 0x090a0b08, 0x0d0e0f0c, 0x01020300
+	.long	0x090a0b08, 0x0d0e0f0c, 0x01020300, 0x05060704
+	.long	0x0d0e0f0c, 0x01020300, 0x05060704, 0x090a0b08
+Lk_mc_backward:	# mc_backward
+	.long	0x03000102, 0x07040506, 0x0b08090a, 0x0f0c0d0e
+	.long	0x0f0c0d0e, 0x03000102, 0x07040506, 0x0b08090a
+	.long	0x0b08090a, 0x0f0c0d0e, 0x03000102, 0x07040506
+	.long	0x07040506, 0x0b08090a, 0x0f0c0d0e, 0x03000102
+Lk_sr:		# sr
+	.long	0x00010203, 0x04050607, 0x08090a0b, 0x0c0d0e0f
+	.long	0x00050a0f, 0x04090e03, 0x080d0207, 0x0c01060b
+	.long	0x0009020b, 0x040d060f, 0x08010a03, 0x0c050e07
+	.long	0x000d0a07, 0x04010e0b, 0x0805020f, 0x0c090603
+
+##
+## "Hot" constants
+##
+Lk_inv:		# inv, inva
+	.long	0xf001080d, 0x0f06050e, 0x020c0b0a, 0x09030704
+	.long	0xf0070b0f, 0x060a0401, 0x09080502, 0x0c0e0d03
+Lk_ipt:		# input transform (lo, hi)
+	.long	0x00702a5a, 0x98e8b2c2, 0x08782252, 0x90e0baca
+	.long	0x004d7c31, 0x7d30014c, 0x81ccfdb0, 0xfcb180cd
+Lk_sbo:		# sbou, sbot
+	.long	0x00c7bd6f, 0x176dd2d0, 0x78a802c5, 0x7abfaa15
+	.long	0x006abb5f, 0xa574e4cf, 0xfa352b41, 0xd1901e8e
+Lk_sb1:		# sb1u, sb1t
+	.long	0x0023e2fa, 0x15d41836, 0xefd92e0d, 0xc1ccf73b
+	.long	0x003e50cb, 0x8fe19bb1, 0x44f52a14, 0x6e7adfa5
+Lk_sb2:		# sb2u, sb2t
+	.long	0x0029e10a, 0x4088eb69, 0x4a2382ab, 0xc863a1c2
+	.long	0x0024710b, 0xc6937ae2, 0xcd2f98bc, 0x55e9b75e
+
+##
+##  Decryption stuff
+##
+Lk_dipt:	# decryption input transform
+	.long	0x005f540b, 0x045b500f, 0x1a454e11, 0x1e414a15
+	.long	0x00650560, 0xe683e386, 0x94f191f4, 0x72177712
+Lk_dsbo:	# decryption sbox final output
+	.long	0x0040f97e, 0x53ea8713, 0x2d3e94d4, 0xb96daac7
+	.long	0x001d4493, 0x0f56d712, 0x9c8ec5d8, 0x59814bca
+Lk_dsb9:	# decryption sbox output *9*u, *9*t
+	.long	0x00d6869a, 0x53031c85, 0xc94c994f, 0x501fd5ca
+	.long	0x0049d7ec, 0x89173bc0, 0x65a5fbb2, 0x9e2c5e72
+Lk_dsbd:	# decryption sbox output *D*u, *D*t
+	.long	0x00a2b1e6, 0xdfcc577d, 0x39442a88, 0x139b6ef5
+	.long	0x00cbc624, 0xf7fae23c, 0xd3efde15, 0x0d183129
+Lk_dsbb:	# decryption sbox output *B*u, *B*t
+	.long	0x0042b496, 0x926422d0, 0x04d4f2b0, 0xf6462660
+	.long	0x006759cd, 0xa69894c1, 0x6baa5532, 0x3e0cfff3
+Lk_dsbe:	# decryption sbox output *E*u, *E*t
+	.long	0x00d0d426, 0x9692f246, 0xb0f6b464, 0x04604222
+	.long	0x00c1aaff, 0xcda6550c, 0x323e5998, 0x6bf36794
+
+##
+##  Key schedule constants
+##
+Lk_dksd:	# decryption key schedule: invskew x*D
+	.long	0x0047e4a3, 0x5d1ab9fe, 0xf9be1d5a, 0xa4e34007
+	.long	0x008336b5, 0xf477c241, 0x1e9d28ab, 0xea69dc5f
+Lk_dksb:	# decryption key schedule: invskew x*B
+	.long	0x00d55085, 0x1fca4f9a, 0x994cc91c, 0x8653d603
+	.long	0x004afcb6, 0xa7ed5b11, 0xc882347e, 0x6f2593d9
+Lk_dkse:	# decryption key schedule: invskew x*E + 0x63
+	.long	0x00d6c91f, 0xca1c03d5, 0x86504f99, 0x4c9a8553
+	.long	0xe87bdc4f, 0x059631a2, 0x8714b320, 0x6af95ecd
+Lk_dks9:	# decryption key schedule: invskew x*9
+	.long	0x00a7d97e, 0xc86f11b6, 0xfc5b2582, 0x3493ed4a
+	.long	0x00331427, 0x62517645, 0xcefddae9, 0xac9fb88b
+
+Lk_rcon:	# rcon
+	.long	0xb6ee9daf, 0xb991831f, 0x817d7c4d, 0x08982a70
+Lk_s63:
+	.long	0x5b5b5b5b, 0x5b5b5b5b, 0x5b5b5b5b, 0x5b5b5b5b
+
+Lk_opt:		# output transform
+	.long	0x0060b6d6, 0x29499fff, 0x0868bede, 0x214197f7
+	.long	0x00ecbc50, 0x51bded01, 0xe00c5cb0, 0xb15d0de1
+Lk_deskew:	# deskew tables: inverts the sbox's "skew"
+	.long	0x00e3a447, 0x40a3e407, 0x1af9be5d, 0x5ab9fe1d
+	.long	0x0069ea83, 0xdcb5365f, 0x771e9df4, 0xabc24128
+.align	5
+Lconsts:
+	mflr	r0
+	bcl	20,31,\$+4
+	mflr	r12	#vvvvv "distance between . and _vpaes_consts
+	addi	r12,r12,-0x308
+	mtlr	r0
+	blr
+	.long	0
+	.byte	0,12,0x14,0,0,0,0,0
+.asciz  "Vector Permutaion AES for AltiVec, Mike Hamburg (Stanford University)"
+.align	6
+___
+
+my ($inptail,$inpperm,$outhead,$outperm,$outmask,$keyperm) = map("v$_",(26..31));
+{
+my ($inp,$out,$key) = map("r$_",(3..5));
+
+my ($invlo,$invhi,$iptlo,$ipthi,$sbou,$sbot) = map("v$_",(10..15));
+my ($sb1u,$sb1t,$sb2u,$sb2t) = map("v$_",(16..19));
+my ($sb9u,$sb9t,$sbdu,$sbdt,$sbbu,$sbbt,$sbeu,$sbet)=map("v$_",(16..23));
+
+$code.=<<___;
+##
+##  _aes_preheat
+##
+##  Fills register %r10 -> .aes_consts (so you can -fPIC)
+##  and %xmm9-%xmm15 as specified below.
+##
+.align	4
+_vpaes_encrypt_preheat:
+	mflr	r8
+	bl	Lconsts
+	mtlr	r8
+	li	r11, 0xc0		# Lk_inv
+	li	r10, 0xd0
+	li	r9,  0xe0		# Lk_ipt
+	li	r8,  0xf0
+	vxor	v7, v7, v7		# 0x00..00
+	vspltisb	v8,4		# 0x04..04
+	vspltisb	v9,0x0f		# 0x0f..0f
+	lvx	$invlo, r12, r11
+	li	r11, 0x100
+	lvx	$invhi, r12, r10
+	li	r10, 0x110
+	lvx	$iptlo, r12, r9
+	li	r9,  0x120
+	lvx	$ipthi, r12, r8
+	li	r8,  0x130
+	lvx	$sbou, r12, r11
+	li	r11, 0x140
+	lvx	$sbot, r12, r10
+	li	r10, 0x150
+	lvx	$sb1u, r12, r9
+	lvx	$sb1t, r12, r8
+	lvx	$sb2u, r12, r11
+	lvx	$sb2t, r12, r10
+	blr
+	.long	0
+	.byte	0,12,0x14,0,0,0,0,0
+
+##
+##  _aes_encrypt_core
+##
+##  AES-encrypt %xmm0.
+##
+##  Inputs:
+##     %xmm0 = input
+##     %xmm9-%xmm15 as in _vpaes_preheat
+##    (%rdx) = scheduled keys
+##
+##  Output in %xmm0
+##  Clobbers  %xmm1-%xmm6, %r9, %r10, %r11, %rax
+##
+##
+.align 5
+_vpaes_encrypt_core:
+	lwz	r8, 240($key)		# pull rounds
+	li	r9, 16
+	lvx	v5, 0, $key		# vmovdqu	(%r9),	%xmm5		# round0 key
+	li	r11, 0x10
+	lvx	v6, r9, $key
+	addi	r9, r9, 16
+	vperm	v5, v5, v6, $keyperm	# align round key
+	addi	r10, r11, 0x40
+	vsrb	v1, v0, v8		# vpsrlb	\$4,	%xmm0,	%xmm0
+	vperm	v0, $iptlo, $iptlo, v0	# vpshufb	%xmm1,	%xmm2,	%xmm1
+	vperm	v1, $ipthi, $ipthi, v1	# vpshufb	%xmm0,	%xmm3,	%xmm2
+	vxor	v0, v0, v5		# vpxor	%xmm5,	%xmm1,	%xmm0
+	vxor	v0, v0, v1		# vpxor	%xmm2,	%xmm0,	%xmm0
+	mtctr	r8
+	b	Lenc_entry
+
+.align 4
+Lenc_loop:
+	# middle of middle round
+	vperm	v4, $sb1t, v7, v2	# vpshufb	%xmm2,	%xmm13,	%xmm4	# 4 = sb1u
+	lvx	v1, r12, r11		# vmovdqa	-0x40(%r11,%r10), %xmm1	# .Lk_mc_forward[]
+	addi	r11, r11, 16
+	vperm	v0, $sb1u, v7, v3	# vpshufb	%xmm3,	%xmm12,	%xmm0	# 0 = sb1t
+	vxor	v4, v4, v5		# vpxor		%xmm5,	%xmm4,	%xmm4	# 4 = sb1u + k
+	andi.	r11, r11, 0x30		# and		\$0x30, %r11	# ... mod 4
+	vperm	v5, $sb2t, v7, v2	# vpshufb	%xmm2,	%xmm15,	%xmm5	# 4 = sb2u
+	vxor	v0, v0, v4		# vpxor		%xmm4,	%xmm0,	%xmm0	# 0 = A
+	vperm	v2, $sb2u, v7, v3	# vpshufb	%xmm3,	%xmm14,	%xmm2	# 2 = sb2t
+	lvx	v4, r12, r10		# vmovdqa	(%r11,%r10), %xmm4	# .Lk_mc_backward[]
+	addi	r10, r11, 0x40
+	vperm	v3, v0, v7, v1		# vpshufb	%xmm1,	%xmm0,	%xmm3	# 0 = B
+	vxor	v2, v2, v5		# vpxor		%xmm5,	%xmm2,	%xmm2	# 2 = 2A
+	vperm	v0, v0, v7, v4		# vpshufb	%xmm4,	%xmm0,	%xmm0	# 3 = D
+	vxor	v3, v3, v2		# vpxor		%xmm2,	%xmm3,	%xmm3	# 0 = 2A+B
+	vperm	v4, v3, v7, v1		# vpshufb	%xmm1,	%xmm3,	%xmm4	# 0 = 2B+C
+	vxor	v0, v0, v3		# vpxor		%xmm3,	%xmm0,	%xmm0	# 3 = 2A+B+D
+	vxor	v0, v0, v4		# vpxor		%xmm4,	%xmm0, %xmm0	# 0 = 2A+3B+C+D
+
+Lenc_entry:
+	# top of round
+	vsrb	v1, v0, v8		# vpsrlb	\$4,	%xmm0,	%xmm0	# 1 = i
+	vperm	v5, $invhi, $invhi, v0	# vpshufb	%xmm1,	%xmm11,	%xmm5	# 2 = a/k
+	vxor	v0, v0, v1		# vpxor		%xmm0,	%xmm1,	%xmm1	# 0 = j
+	vperm	v3, $invlo, $invlo, v1	# vpshufb	%xmm0, 	%xmm10,	%xmm3  	# 3 = 1/i
+	vperm	v4, $invlo, $invlo, v0	# vpshufb	%xmm1, 	%xmm10,	%xmm4  	# 4 = 1/j
+	vand	v0, v0, v9
+	vxor	v3, v3, v5		# vpxor		%xmm5,	%xmm3,	%xmm3	# 3 = iak = 1/i + a/k
+	vxor	v4, v4, v5		# vpxor		%xmm5,	%xmm4,	%xmm4  	# 4 = jak = 1/j + a/k
+	vperm	v2, $invlo, v7, v3	# vpshufb	%xmm3,	%xmm10,	%xmm2  	# 2 = 1/iak
+	vmr	v5, v6
+	lvx	v6, r9, $key		# vmovdqu	(%r9), %xmm5
+	vperm	v3, $invlo, v7, v4	# vpshufb	%xmm4,	%xmm10,	%xmm3	# 3 = 1/jak
+	addi	r9, r9, 16
+	vxor	v2, v2, v0		# vpxor		%xmm1,	%xmm2,	%xmm2  	# 2 = io
+	vperm	v5, v5, v6, $keyperm	# align round key
+	vxor	v3, v3, v1		# vpxor		%xmm0,	%xmm3,	%xmm3	# 3 = jo
+	bdnz	Lenc_loop
+
+	# middle of last round
+	addi	r10, r11, 0x80
+					# vmovdqa	-0x60(%r10), %xmm4	# 3 : sbou	.Lk_sbo
+					# vmovdqa	-0x50(%r10), %xmm0	# 0 : sbot	.Lk_sbo+16
+	vperm	v4, $sbou, v7, v2	# vpshufb	%xmm2,	%xmm4,	%xmm4	# 4 = sbou
+	lvx	v1, r12, r10		# vmovdqa	0x40(%r11,%r10), %xmm1	# .Lk_sr[]
+	vperm	v0, $sbot, v7, v3	# vpshufb	%xmm3,	%xmm0,	%xmm0	# 0 = sb1t
+	vxor	v4, v4, v5		# vpxor		%xmm5,	%xmm4,	%xmm4	# 4 = sb1u + k
+	vxor	v0, v0, v4		# vpxor		%xmm4,	%xmm0,	%xmm0	# 0 = A
+	vperm	v0, v0, v7, v1		# vpshufb	%xmm1,	%xmm0,	%xmm0
+	blr
+	.long	0
+	.byte	0,12,0x14,0,0,0,0,0
+
+.globl	.vpaes_encrypt
+.align	5
+.vpaes_encrypt:
+	mflr	r6
+	mfspr	r7, 256			# save vrsave
+	li	r0, -1
+	$PUSH	r6,$LRSAVE($sp)
+	mtspr	256, r0			# preserve all AltiVec registers
+
+	bl	_vpaes_encrypt_preheat
+
+	lvx	v0, 0, $inp
+	neg	r8, $inp		# prepare for unaligned access
+	lvsl	$keyperm, 0, $key
+	 lvsr	$outperm, 0, $out
+	lvsr	$inpperm, 0, r8		# -$inp
+	 vnor	$outmask, v7, v7	# 0xff..ff
+	lvx	$inptail, 0, $inp
+	 vperm	$outmask, v7, $outmask, $outperm
+	addi	$inp, $inp, 15		# 15 is not a typo
+	 lvx	$outhead, 0, $out
+
+	########
+	vmr	v0, $inptail
+	lvx	$inptail, 0, $inp	# redundant in aligned case
+	addi	$inp, $inp, 16
+	vperm	v0, v0, $inptail, $inpperm
+
+	bl	_vpaes_encrypt_core
+
+	vperm	v0, v0, v0, $outperm	# rotate left
+	vsel	v1, $outhead, v0, $outmask
+	vmr	$outhead, v0
+	stvx	v1, 0, $out
+	addi	$out, $out, 15		# 15 is not a typo
+	########
+
+	lvx	v1, 0, $out		# redundant in aligned case
+	vsel	v1, $outhead, v1, $outmask
+	stvx	v1, 0, $out
+
+	mtlr	r6
+	mtspr	256, r7			# restore vrsave
+	blr
+	.long	0
+	.byte	0,12,0x14,1,0,0,3,0
+	.long	0
+.size	.vpaes_encrypt,.-.vpaes_encrypt
+
+.align	4
+_vpaes_decrypt_preheat:
+	mflr	r8
+	bl	Lconsts
+	mtlr	r8
+	li	r11, 0xc0		# Lk_inv
+	li	r10, 0xd0
+	li	r9,  0x160		# Ldipt
+	li	r8,  0x170
+	vxor	v7, v7, v7		# 0x00..00
+	vspltisb	v8,4		# 0x04..04
+	vspltisb	v9,0x0f		# 0x0f..0f
+	lvx	$invlo, r12, r11
+	li	r11, 0x180
+	lvx	$invhi, r12, r10
+	li	r10, 0x190
+	lvx	$iptlo, r12, r9
+	li	r9,  0x1a0
+	lvx	$ipthi, r12, r8
+	li	r8,  0x1b0
+	lvx	$sbou, r12, r11
+	li	r11, 0x1c0
+	lvx	$sbot, r12, r10
+	li	r10, 0x1d0
+	lvx	$sb9u, r12, r9
+	li	r9,  0x1e0
+	lvx	$sb9t, r12, r8
+	li	r8,  0x1f0
+	lvx	$sbdu, r12, r11
+	li	r11, 0x200
+	lvx	$sbdt, r12, r10
+	li	r10, 0x210
+	lvx	$sbbu, r12, r9
+	lvx	$sbbt, r12, r8
+	lvx	$sbeu, r12, r11
+	lvx	$sbet, r12, r10
+	blr
+	.long	0
+	.byte	0,12,0x14,0,0,0,0,0
+
+##
+##  Decryption core
+##
+##  Same API as encryption core.
+##
+.align	4
+_vpaes_decrypt_core:
+	lwz	r8, 240($key)		# pull rounds
+	li	r9, 16
+	lvx	v5, 0, $key		# vmovdqu	(%r9),	%xmm4		# round0 key
+	li	r11, 0x30
+	lvx	v6, r9, $key
+	addi	r9, r9, 16
+	vperm	v5, v5, v6, $keyperm	# align round key
+	vsrb	v1, v0, v8		# vpsrlb	\$4,	%xmm0,	%xmm0
+	vperm	v0, $iptlo, $iptlo, v0	# vpshufb	%xmm1,	%xmm2,	%xmm2
+	vperm	v1, $ipthi, $ipthi, v1	# vpshufb	%xmm0,	%xmm1,	%xmm0
+	vxor	v0, v0, v5		# vpxor	%xmm4,	%xmm2,	%xmm2
+	vxor	v0, v0, v1		# vpxor	%xmm2,	%xmm0,	%xmm0
+	mtctr	r8
+	b	Ldec_entry
+
+.align 4
+Ldec_loop:
+#
+#  Inverse mix columns
+#
+	lvx	v0, r12, r11		# v5 and v0 are flipped
+					# vmovdqa	-0x20(%r10),%xmm4		# 4 : sb9u
+					# vmovdqa	-0x10(%r10),%xmm1		# 0 : sb9t
+	vperm	v4, $sb9u, v7, v2	# vpshufb	%xmm2,	%xmm4,	%xmm4		# 4 = sb9u
+	subi	r11, r11, 16
+	vperm	v1, $sb9t, v7, v3	# vpshufb	%xmm3,	%xmm1,	%xmm1		# 0 = sb9t
+	andi.	r11, r11, 0x30
+	vxor	v5, v5, v4		# vpxor		%xmm4,	%xmm0,	%xmm0
+					# vmovdqa	0x00(%r10),%xmm4		# 4 : sbdu
+	vxor	v5, v5, v1		# vpxor		%xmm1,	%xmm0,	%xmm0		# 0 = ch
+					# vmovdqa	0x10(%r10),%xmm1		# 0 : sbdt
+
+	vperm	v4, $sbdu, v7, v2	# vpshufb	%xmm2,	%xmm4,	%xmm4		# 4 = sbdu
+	vperm 	v5, v5, v7, v0		# vpshufb	%xmm5,	%xmm0,	%xmm0		# MC ch
+	vperm	v1, $sbdt, v7, v3	# vpshufb	%xmm3,	%xmm1,	%xmm1		# 0 = sbdt
+	vxor	v5, v5, v4		# vpxor		%xmm4,	%xmm0,	%xmm0		# 4 = ch
+					# vmovdqa	0x20(%r10),	%xmm4		# 4 : sbbu
+	vxor	v5, v5, v1		# vpxor		%xmm1,	%xmm0,	%xmm0		# 0 = ch
+					# vmovdqa	0x30(%r10),	%xmm1		# 0 : sbbt
+
+	vperm	v4, $sbbu, v7, v2	# vpshufb	%xmm2,	%xmm4,	%xmm4		# 4 = sbbu
+	vperm	v5, v5, v7, v0		# vpshufb	%xmm5,	%xmm0,	%xmm0		# MC ch
+	vperm	v1, $sbbt, v7, v3	# vpshufb	%xmm3,	%xmm1,	%xmm1		# 0 = sbbt
+	vxor	v5, v5, v4		# vpxor		%xmm4,	%xmm0,	%xmm0		# 4 = ch
+					# vmovdqa	0x40(%r10),	%xmm4		# 4 : sbeu
+	vxor	v5, v5, v1		# vpxor		%xmm1,	%xmm0,	%xmm0		# 0 = ch
+					# vmovdqa	0x50(%r10),	%xmm1		# 0 : sbet
+
+	vperm	v4, $sbeu, v7, v2	# vpshufb	%xmm2,	%xmm4,	%xmm4		# 4 = sbeu
+	vperm	v5, v5, v7, v0		# vpshufb	%xmm5,	%xmm0,	%xmm0		# MC ch
+	vperm	v1, $sbet, v7, v3	# vpshufb	%xmm3,	%xmm1,	%xmm1		# 0 = sbet
+	vxor	v0, v5, v4		# vpxor		%xmm4,	%xmm0,	%xmm0		# 4 = ch
+	vxor	v0, v0, v1		# vpxor		%xmm1,	%xmm0,	%xmm0		# 0 = ch
+
+Ldec_entry:
+	# top of round
+	vsrb	v1, v0, v8		# vpsrlb	\$4,	%xmm0,	%xmm0	# 1 = i
+	vperm	v2, $invhi, $invhi, v0	# vpshufb	%xmm1,	%xmm11,	%xmm2	# 2 = a/k
+	vxor	v0, v0, v1		# vpxor		%xmm0,	%xmm1,	%xmm1	# 0 = j
+	vperm	v3, $invlo, $invlo, v1	# vpshufb	%xmm0, 	%xmm10,	%xmm3	# 3 = 1/i
+	vperm	v4, $invlo, $invlo, v0	# vpshufb	%xmm1,	%xmm10,	%xmm4	# 4 = 1/j
+	vand	v0, v0, v9
+	vxor	v3, v3, v2		# vpxor		%xmm2,	%xmm3,	%xmm3	# 3 = iak = 1/i + a/k
+	vxor	v4, v4, v2		# vpxor		%xmm2, 	%xmm4,	%xmm4	# 4 = jak = 1/j + a/k
+	vperm	v2, $invlo, v7, v3	# vpshufb	%xmm3,	%xmm10,	%xmm2	# 2 = 1/iak
+	vmr	v5, v6
+	lvx	v6, r9, $key		# vmovdqu	(%r9),	%xmm0
+	vperm	v3, $invlo, v7, v4	# vpshufb	%xmm4,  %xmm10,	%xmm3	# 3 = 1/jak
+	addi	r9, r9, 16
+	vxor	v2, v2, v0		# vpxor		%xmm1,	%xmm2,	%xmm2	# 2 = io
+	vperm	v5, v5, v6, $keyperm	# align round key
+	vxor	v3, v3, v1		# vpxor		%xmm0,  %xmm3,	%xmm3	# 3 = jo
+	bdnz	Ldec_loop
+
+	# middle of last round
+	addi	r10, r11, 0x80
+					# vmovdqa	0x60(%r10),	%xmm4	# 3 : sbou
+	vperm	v4, $sbou, v7, v2	# vpshufb	%xmm2,	%xmm4,	%xmm4	# 4 = sbou
+					# vmovdqa	0x70(%r10),	%xmm1	# 0 : sbot
+	lvx	v2, r12, r10		# vmovdqa	-0x160(%r11),	%xmm2	# .Lk_sr-.Lk_dsbd=-0x160
+	vperm	v1, $sbot, v7, v3	# vpshufb	%xmm3,	%xmm1,	%xmm1	# 0 = sb1t
+	vxor	v4, v4, v5		# vpxor		%xmm0,	%xmm4,	%xmm4	# 4 = sb1u + k
+	vxor	v0, v1, v4		# vpxor		%xmm4,	%xmm1,	%xmm0	# 0 = A
+	vperm	v0, v0, v7, v2		# vpshufb	%xmm2,	%xmm0,	%xmm0
+	blr
+	.long	0
+	.byte	0,12,0x14,0,0,0,0,0
+
+.globl	.vpaes_decrypt
+.align	5
+.vpaes_decrypt:
+	mflr	r6
+	mfspr	r7, 256			# save vrsave
+	li	r0, -1
+	$PUSH	r6,$LRSAVE($sp)
+	mtspr	256, r0			# preserve all AltiVec registers
+
+	bl	_vpaes_decrypt_preheat
+
+	lvx	v0, 0, $inp
+	neg	r8, $inp		# prepare for unaligned access
+	lvsl	$keyperm, 0, $key
+	 lvsr	$outperm, 0, $out
+	lvsr	$inpperm, 0, r8		# -$inp
+	 vnor	$outmask, v7, v7	# 0xff..ff
+	lvx	$inptail, 0, $inp
+	 vperm	$outmask, v7, $outmask, $outperm
+	addi	$inp, $inp, 15		# 15 is not a typo
+	 lvx	$outhead, 0, $out
+
+	########
+	vmr	v0, $inptail
+	lvx	$inptail, 0, $inp	# redundant in aligned case
+	addi	$inp, $inp, 16
+	vperm	v0, v0, $inptail, $inpperm
+
+	bl	_vpaes_decrypt_core
+
+	vperm	v0, v0, v0, $outperm	# rotate left
+	vsel	v1, $outhead, v0, $outmask
+	vmr	$outhead, v0
+	stvx	v1, 0, $out
+	addi	$out, $out, 15		# 15 is not a typo
+	########
+
+	lvx	v1, 0, $out		# redundant in aligned case
+	vsel	v1, $outhead, v1, $outmask
+	stvx	v1, 0, $out
+
+	mtlr	r6
+	mtspr	256, r7			# restore vrsave
+	blr
+	.long	0
+	.byte	0,12,0x14,1,0,0,3,0
+	.long	0
+.size	.vpaes_decrypt,.-.vpaes_decrypt
+
+.globl	.vpaes_cbc_encrypt
+.align	5
+.vpaes_cbc_encrypt:
+	$STU	$sp,-$FRAME($sp)
+	mflr	r0
+	$PUSH	r30,$FRAME-$SIZE_T*2($sp)
+	li	r9, 16
+	$PUSH	r31,$FRAME-$SIZE_T*1($sp)
+	$PUSH	r0, $FRAME+$LRSAVE($sp)
+
+	sub.	r30, r5, r9		# copy length-16
+	mr	r5, r6			# copy pointer to key
+	mr	r31, r7			# copy pointer to iv
+	blt	Lcbc_abort
+	cmpwi	r8, 0			# test direction
+	li	r6, -1
+	mfspr	r7, 256
+	mtspr	256, r6			# preserve all AltiVec registers
+
+	neg	r8, r31			# load [potentially unaligned] iv
+	li	r9, 15
+	lvx	v24, 0, r31
+	lvsr	$inpperm, 0, r8		# -ivp
+	lvx	v25, r9, r31
+	vperm	v24, v24, v25, $inpperm
+
+	lvx	v0, 0, $inp
+	neg	r8, $inp		# prepare for unaligned access
+	 vxor	v7, v7, v7
+	lvsl	$keyperm, 0, $key
+	 lvsr	$outperm, 0, $out
+	lvsr	$inpperm, 0, r8		# -$inp
+	 vnor	$outmask, v7, v7	# 0xff..ff
+	lvx	$inptail, 0, $inp
+	 vperm	$outmask, v7, $outmask, $outperm
+	addi	$inp, $inp, 15		# 15 is not a typo
+	 lvx	$outhead, 0, $out
+
+	beq	Lcbc_decrypt
+
+	bl	_vpaes_encrypt_preheat
+	li	r0, 16
+
+Lcbc_enc_loop:
+	vmr	v0, $inptail
+	lvx	$inptail, 0, $inp
+	addi	$inp, $inp, 16
+	vperm	v0, v0, $inptail, $inpperm
+	vxor	v0, v0, v24		# ^= iv
+
+	bl	_vpaes_encrypt_core
+
+	vmr	v24, v0			# put aside iv
+	sub.	r30, r30, r0		# len -= 16
+	vperm	v0, v0, v0, $outperm	# rotate left
+	vsel	v1, $outhead, v0, $outmask
+	vmr	$outhead, v0
+	stvx	v1, 0, $out
+	addi	$out, $out, 16
+	bge	Lcbc_enc_loop
+
+	b	Lcbc_done
+
+.align	5
+Lcbc_decrypt:
+	bl	_vpaes_decrypt_preheat
+	li	r0, 16
+
+Lcbc_dec_loop:
+	vmr	v0, $inptail
+	lvx	$inptail, 0, $inp
+	addi	$inp, $inp, 16
+	vperm	v0, v0, $inptail, $inpperm
+	vmr	v25, v0			# put aside input
+
+	bl	_vpaes_decrypt_core
+
+	vxor	v0, v0, v24		# ^= iv
+	vmr	v24, v25
+	sub.	r30, r30, r0		# len -= 16
+	vperm	v0, v0, v0, $outperm	# rotate left
+	vsel	v1, $outhead, v0, $outmask
+	vmr	$outhead, v0
+	stvx	v1, 0, $out
+	addi	$out, $out, 16
+	bge	Lcbc_dec_loop
+
+Lcbc_done:
+	addi	$out, $out, -1
+	lvx	v1, 0, $out		# redundant in aligned case
+	vsel	v1, $outhead, v1, $outmask
+	stvx	v1, 0, $out
+
+	lvsr	$outperm, 0, r31	# write [potentially unaligned] iv
+	li	r6, 15
+	vnor	$outmask, v7, v7	# 0xff..ff
+	vperm	$outmask, v7, $outmask, $outperm
+	lvx	$outhead, 0, $out
+	vperm	v24, v24, v24, $outperm	# rotate
+	vsel	v0, $outhead, v24, $outmask
+	lvx	v1, r6, r31
+	stvx	v0, 0, r31
+	vsel	v1, v24, v1, $outmask
+	stvx	v1, r6, r31
+
+	mtspr	256, r7			# restore vrsave
+Lcbc_abort:
+	$POP	r0, $FRAME+$LRSAVE($sp)
+	$POP	r30,$FRAME-$SIZE_T*2($sp)
+	$POP	r31,$FRAME-$SIZE_T*1($sp)
+	mtlr	r0
+	addi	$sp,$sp,$FRAME
+	blr
+	.long	0
+	.byte	0,12,0x04,1,0x80,2,6,0
+	.long	0
+.size	.vpaes_cbc_encrypt,.-.vpaes_cbc_encrypt
+___
+}
+{
+my ($inp,$bits,$out)=map("r$_",(3..5));
+my $dir="cr3";
+my ($invlo,$invhi,$iptlo,$ipthi,$rcon) = map("v$_",(10..13,24));
+
+$code.=<<___;
+########################################################
+##                                                    ##
+##                  AES key schedule                  ##
+##                                                    ##
+########################################################
+.align	4
+_vpaes_key_preheat:
+	mflr	r8
+	bl	Lconsts
+	mtlr	r8
+	li	r11, 0xc0		# Lk_inv
+	li	r10, 0xd0
+	li	r9,  0xe0		# L_ipt
+	li	r8,  0xf0
+
+	vspltisb	v8,4		# 0x04..04
+	vxor	v9,v9,v9		# 0x00..00
+	lvx	$invlo, r12, r11	# Lk_inv
+	li	r11, 0x120
+	lvx	$invhi, r12, r10
+	li	r10, 0x130
+	lvx	$iptlo, r12, r9		# Lk_ipt
+	li	r9, 0x220
+	lvx	$ipthi, r12, r8
+	li	r8, 0x230
+
+	lvx	v14, r12, r11		# Lk_sb1
+	li	r11, 0x240
+	lvx	v15, r12, r10
+	li	r10, 0x250
+
+	lvx	v16, r12, r9		# Lk_dksd
+	li	r9, 0x260
+	lvx	v17, r12, r8
+	li	r8, 0x270
+	lvx	v18, r12, r11		# Lk_dksb
+	li	r11, 0x280
+	lvx	v19, r12, r10
+	li	r10, 0x290
+	lvx	v20, r12, r9		# Lk_dkse
+	li	r9, 0x2a0
+	lvx	v21, r12, r8
+	li	r8, 0x2b0
+	lvx	v22, r12, r11		# Lk_dks9
+	lvx	v23, r12, r10
+
+	lvx	v24, r12, r9		# Lk_rcon
+	lvx	v25, 0, r12		# Lk_mc_forward[0]
+	lvx	v26, r12, r8		# Lks63
+	blr
+	.long	0
+	.byte	0,12,0x14,0,0,0,0,0
+
+.align	4
+_vpaes_schedule_core:
+	mflr	r7
+
+	bl	_vpaes_key_preheat	# load the tables
+
+	#lvx	v0, 0, $inp		# vmovdqu	(%rdi),	%xmm0		# load key (unaligned)
+	neg	r8, $inp		# prepare for unaligned access
+	lvx	v0, 0, $inp
+	addi	$inp, $inp, 15		# 15 is not typo
+	lvsr	$inpperm, 0, r8		# -$inp
+	lvx	v6, 0, $inp		# v6 serves as inptail
+	addi	$inp, $inp, 8
+	vperm	v0, v0, v6, $inpperm
+
+	# input transform
+	vmr	v3, v0			# vmovdqa	%xmm0,	%xmm3
+	bl	_vpaes_schedule_transform
+	vmr	v7, v0			# vmovdqa	%xmm0,	%xmm7
+
+	bne	$dir, Lschedule_am_decrypting
+
+	# encrypting, output zeroth round key after transform
+	li	r8, 0x30		# mov	\$0x30,%r8d
+	addi	r10, r12, 0x80		# lea	.Lk_sr(%rip),%r10
+
+	lvsr	$outperm, 0, $out	# prepare for unaligned access
+	vspltisb	$outmask, -1	# 0xff..ff
+	lvx	$outhead, 0, $out
+	vperm	$outmask, v9, $outmask, $outperm
+
+	#stvx	v0, 0, $out		# vmovdqu	%xmm0,	(%rdx)
+	vperm	v1, v0, v0, $outperm	# rotate left
+	vsel	v2, $outhead, v1, $outmask
+	vmr	$outhead, v1
+	stvx	v2, 0, $out
+	b	Lschedule_go
+
+Lschedule_am_decrypting:
+	srwi	r8, $bits, 1		# shr	\$1,%r8d
+	andi.	r8, r8, 32		# and	\$32,%r8d
+	xori	r8, r8, 32		# xor	\$32,%r8d	# nbits==192?0:32
+	addi	r10, r12, 0x80		# lea	.Lk_sr(%rip),%r10
+	# decrypting, output zeroth round key after shiftrows
+	lvx	v1, r8, r10		# vmovdqa	(%r8,%r10),	%xmm1
+	vperm	v4, v3, v3, v1		# vpshufb	%xmm1,	%xmm3,	%xmm3
+
+	neg	r0, $out		# prepare for unaligned access
+	lvsl	$outperm, 0, r0
+	addi	$out, $out, 15		# 15 is not typo
+	vspltisb	$outmask, -1	# 0xff..ff
+	lvx	$outhead, 0, $out
+	vperm	$outmask, $outmask, v9, $outperm
+
+	#stvx	v4, 0, $out		# vmovdqu	%xmm3,	(%rdx)
+	vperm	v4, v4, v4, $outperm	# rotate left
+	vsel	v2, $outhead, v4, $outmask
+	vmr	$outhead, v4
+	stvx	v2, 0, $out
+	xori	r8, r8, 0x30		# xor	\$0x30, %r8
+
+Lschedule_go:
+	cmplwi	$bits, 192		# cmp	\$192,	%esi
+	bgt	Lschedule_256
+	beq	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:
+	li	r0, 10			# mov	\$10, %esi
+	mtctr	r0
+
+Loop_schedule_128:
+	bl 	_vpaes_schedule_round
+	bdz 	Lschedule_mangle_last	# dec	%esi
+	bl	_vpaes_schedule_mangle	# write output
+	b 	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	4
+Lschedule_192:
+	li	r0, 4			# mov	\$4,	%esi
+	lvx	v0, 0, $inp
+	vperm	v0, v6, v0, $inpperm
+	vsldoi	v0, v3, v0, 8		# vmovdqu	8(%rdi),%xmm0		# load key part 2 (very unaligned)
+	bl	_vpaes_schedule_transform	# input transform
+	vsldoi	v6, v0, v9, 8
+	vsldoi	v6, v9, v6, 8		# clobber "low" side with zeros
+	mtctr	r0
+
+Loop_schedule_192:
+	bl	_vpaes_schedule_round
+	vsldoi	v0, v6, v0, 8		# vpalignr	\$8,%xmm6,%xmm0,%xmm0
+	bl	_vpaes_schedule_mangle	# save key n
+	bl	_vpaes_schedule_192_smear
+	bl	_vpaes_schedule_mangle	# save key n+1
+	bl	_vpaes_schedule_round
+	bdz 	Lschedule_mangle_last	# dec	%esi
+	bl	_vpaes_schedule_mangle	# save key n+2
+	bl	_vpaes_schedule_192_smear
+	b	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	4
+Lschedule_256:
+	li	r0, 7			# mov	\$7, %esi
+	addi	$inp, $inp, 8
+	lvx	v0, 0, $inp		# vmovdqu	16(%rdi),%xmm0		# load key part 2 (unaligned)
+	vperm	v0, v6, v0, $inpperm
+	bl	_vpaes_schedule_transform	# input transform
+	mtctr	r0
+
+Loop_schedule_256:
+	bl	_vpaes_schedule_mangle	# output low result
+	vmr	v6, v0			# vmovdqa	%xmm0,	%xmm6		# save cur_lo in xmm6
+
+	# high round
+	bl	_vpaes_schedule_round
+	bdz 	Lschedule_mangle_last	# dec	%esi
+	bl	_vpaes_schedule_mangle	
+
+	# low round. swap xmm7 and xmm6
+	vspltw	v0, v0, 3		# vpshufd	\$0xFF,	%xmm0,	%xmm0
+	vmr	v5, v7			# vmovdqa	%xmm7,	%xmm5
+	vmr	v7, v6			# vmovdqa	%xmm6,	%xmm7
+	bl	_vpaes_schedule_low_round
+	vmr	v7, v5			# vmovdqa	%xmm5,	%xmm7
+	
+	b	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	4
+Lschedule_mangle_last:
+	# schedule last round key from xmm0
+	li	r11, 0x2e0		# lea	.Lk_deskew(%rip),%r11
+	li	r9,  0x2f0
+	bne	$dir, Lschedule_mangle_last_dec
+
+	# encrypting
+	lvx	v1, r8, r10		# vmovdqa	(%r8,%r10),%xmm1
+	li	r11, 0x2c0		# lea		.Lk_opt(%rip),	%r11	# prepare to output transform
+	li	r9,  0x2d0		# prepare to output transform
+	vperm	v0, v0, v0, v1		# vpshufb	%xmm1,	%xmm0,	%xmm0	# output permute
+
+	lvx	$iptlo, r11, r12	# reload $ipt
+	lvx	$ipthi, r9, r12
+	addi	$out, $out, 16		# add	\$16,	%rdx
+	vxor	v0, v0, v26		# vpxor		.Lk_s63(%rip),	%xmm0,	%xmm0
+	bl	_vpaes_schedule_transform	# output transform
+
+	#stvx	v0, r0, $out		# vmovdqu	%xmm0,	(%rdx)		# save last key
+	vperm	v0, v0, v0, $outperm	# rotate left
+	vsel	v2, $outhead, v0, $outmask
+	vmr	$outhead, v0
+	stvx	v2, 0, $out
+
+	addi	$out, $out, 15		# 15 is not typo
+	lvx	v1, 0, $out		# redundant in aligned case
+	vsel	v1, $outhead, v1, $outmask
+	stvx	v1, 0, $out
+	b	Lschedule_mangle_done
+
+.align	4
+Lschedule_mangle_last_dec:
+	lvx	$iptlo, r11, r12	# reload $ipt
+	lvx	$ipthi, r9,  r12
+	addi	$out, $out, -16		# add	\$-16,	%rdx 
+	vxor	v0, v0, v26		# vpxor	.Lk_s63(%rip),	%xmm0,	%xmm0
+	bl	_vpaes_schedule_transform	# output transform
+
+	#stvx	v0, r0, $out		# vmovdqu	%xmm0,	(%rdx)		# save last key
+	vperm	v0, v0, v0, $outperm	# rotate left
+	vsel	v2, $outhead, v0, $outmask
+	vmr	$outhead, v0
+	stvx	v2, 0, $out
+
+	addi	$out, $out, -15		# -15 is not typo
+	lvx	v1, 0, $out		# redundant in aligned case
+	vsel	v1, $outhead, v1, $outmask
+	stvx	v1, 0, $out
+
+Lschedule_mangle_done:
+	mtlr	r7
+	# cleanup
+	vxor	v0, v0, v0		# vpxor		%xmm0,	%xmm0,	%xmm0
+	vxor	v1, v1, v1		# vpxor		%xmm1,	%xmm1,	%xmm1
+	vxor	v2, v2, v2		# vpxor		%xmm2,	%xmm2,	%xmm2
+	vxor	v3, v3, v3		# vpxor		%xmm3,	%xmm3,	%xmm3
+	vxor	v4, v4, v4		# vpxor		%xmm4,	%xmm4,	%xmm4
+	vxor	v5, v5, v5		# vpxor		%xmm5,	%xmm5,	%xmm5
+	vxor	v6, v6, v6		# vpxor		%xmm6,	%xmm6,	%xmm6
+	vxor	v7, v7, v7		# vpxor		%xmm7,	%xmm7,	%xmm7
+
+	blr
+	.long	0
+	.byte	0,12,0x14,0,0,0,0,0
+
+##
+##  .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
+##
+.align	4
+_vpaes_schedule_192_smear:
+	vspltw	v0, v7, 3
+	vsldoi	v1, v9, v6, 12		# vpshufd	\$0x80,	%xmm6,	%xmm1	# d c 0 0 -> c 0 0 0
+	vsldoi	v0, v7, v0, 8		# vpshufd	\$0xFE,	%xmm7,	%xmm0	# b a _ _ -> b b b a
+	vxor	v6, v6, v1		# vpxor		%xmm1,	%xmm6,	%xmm6	# -> c+d c 0 0
+	vxor	v6, v6, v0		# vpxor		%xmm0,	%xmm6,	%xmm6	# -> b+c+d b+c b a
+	vmr	v0, v6
+	vsldoi	v6, v6, v9, 8
+	vsldoi	v6, v9, v6, 8		# clobber low side with zeros
+	blr
+	.long	0
+	.byte	0,12,0x14,0,0,0,0,0
+
+##
+##  .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.
+##
+.align	4
+_vpaes_schedule_round:
+	# extract rcon from xmm8
+	#vxor	v4, v4, v4		# vpxor		%xmm4,	%xmm4,	%xmm4
+	vsldoi	v1, $rcon, v9, 15	# vpalignr	\$15,	%xmm8,	%xmm4,	%xmm1
+	vsldoi	$rcon, $rcon, $rcon, 15	# vpalignr	\$15,	%xmm8,	%xmm8,	%xmm8
+	vxor	v7, v7, v1		# vpxor		%xmm1,	%xmm7,	%xmm7
+
+	# rotate
+	vspltw	v0, v0, 3		# vpshufd	\$0xFF,	%xmm0,	%xmm0
+	vsldoi	v0, v0, v0, 1		# vpalignr	\$1,	%xmm0,	%xmm0,	%xmm0
+
+	# fall through...
+
+	# low round: same as high round, but no rotation and no rcon.
+_vpaes_schedule_low_round:
+	# smear xmm7
+	vsldoi	v1, v9, v7, 12		# vpslldq	\$4,	%xmm7,	%xmm1
+	vxor	v7, v7, v1		# vpxor		%xmm1,	%xmm7,	%xmm7
+	vspltisb	v1, 0x0f	# 0x0f..0f
+	vsldoi	v4, v9, v7, 8		# vpslldq	\$8,	%xmm7,	%xmm4
+
+	# subbytes
+	vand	v1, v1, v0		# vpand		%xmm9,	%xmm0,	%xmm1		# 0 = k
+	vsrb	v0, v0, v8		# vpsrlb	\$4,	%xmm0,	%xmm0		# 1 = i
+	 vxor	v7, v7, v4		# vpxor		%xmm4,	%xmm7,	%xmm7
+	vperm	v2, $invhi, v9, v1	# vpshufb	%xmm1,	%xmm11,	%xmm2		# 2 = a/k
+	vxor	v1, v1, v0		# vpxor		%xmm0,	%xmm1,	%xmm1		# 0 = j
+	vperm	v3, $invlo, v9, v0	# vpshufb	%xmm0, 	%xmm10,	%xmm3		# 3 = 1/i
+	vxor	v3, v3, v2		# vpxor		%xmm2,	%xmm3,	%xmm3		# 3 = iak = 1/i + a/k
+	vperm	v4, $invlo, v9, v1	# vpshufb	%xmm1,	%xmm10,	%xmm4		# 4 = 1/j
+	 vxor	v7, v7, v26		# vpxor		.Lk_s63(%rip),	%xmm7,	%xmm7
+	vperm	v3, $invlo, v9, v3	# vpshufb	%xmm3,	%xmm10,	%xmm3		# 2 = 1/iak
+	vxor	v4, v4, v2		# vpxor		%xmm2,	%xmm4,	%xmm4		# 4 = jak = 1/j + a/k
+	vperm	v2, $invlo, v9, v4	# vpshufb	%xmm4,	%xmm10,	%xmm2		# 3 = 1/jak
+	vxor	v3, v3, v1		# vpxor		%xmm1,	%xmm3,	%xmm3		# 2 = io
+	vxor	v2, v2, v0		# vpxor		%xmm0,	%xmm2,	%xmm2		# 3 = jo
+	vperm	v4, v15, v9, v3		# vpshufb	%xmm3,	%xmm13,	%xmm4		# 4 = sbou
+	vperm	v1, v14, v9, v2		# vpshufb	%xmm2,	%xmm12,	%xmm1		# 0 = sb1t
+	vxor	v1, v1, v4		# vpxor		%xmm4,	%xmm1,	%xmm1		# 0 = sbox output
+
+	# add in smeared stuff
+	vxor	v0, v1, v7		# vpxor		%xmm7,	%xmm1,	%xmm0
+	vxor	v7, v1, v7		# vmovdqa	%xmm0,	%xmm7
+	blr
+	.long	0
+	.byte	0,12,0x14,0,0,0,0,0
+
+##
+##  .aes_schedule_transform
+##
+##  Linear-transform %xmm0 according to tables at (%r11)
+##
+##  Requires that %xmm9 = 0x0F0F... as in preheat
+##  Output in %xmm0
+##  Clobbers %xmm2
+##
+.align	4
+_vpaes_schedule_transform:
+	#vand	v1, v0, v9		# vpand		%xmm9,	%xmm0,	%xmm1
+	vsrb	v2, v0, v8		# vpsrlb	\$4,	%xmm0,	%xmm0
+					# vmovdqa	(%r11),	%xmm2 	# lo
+	vperm	v0, $iptlo, $iptlo, v0	# vpshufb	%xmm1,	%xmm2,	%xmm2
+					# vmovdqa	16(%r11),	%xmm1 # hi
+	vperm	v2, $ipthi, $ipthi, v2	# vpshufb	%xmm0,	%xmm1,	%xmm0
+	vxor	v0, v0, v2		# vpxor		%xmm2,	%xmm0,	%xmm0
+	blr
+	.long	0
+	.byte	0,12,0x14,0,0,0,0,0
+
+##
+##  .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
+##
+.align	4
+_vpaes_schedule_mangle:
+	#vmr	v4, v0			# vmovdqa	%xmm0,	%xmm4	# save xmm0 for later
+					# vmovdqa	.Lk_mc_forward(%rip),%xmm5
+	bne	$dir, Lschedule_mangle_dec
+
+	# encrypting
+	vxor	v4, v0, v26		# vpxor	.Lk_s63(%rip),	%xmm0,	%xmm4
+	addi	$out, $out, 16		# add	\$16,	%rdx
+	vperm	v4, v4, v4, v25		# vpshufb	%xmm5,	%xmm4,	%xmm4
+	vperm	v1, v4, v4, v25		# vpshufb	%xmm5,	%xmm4,	%xmm1
+	vperm	v3, v1, v1, v25		# vpshufb	%xmm5,	%xmm1,	%xmm3
+	vxor	v4, v4, v1		# vpxor		%xmm1,	%xmm4,	%xmm4
+	lvx	v1, r8, r10		# vmovdqa	(%r8,%r10),	%xmm1
+	vxor	v3, v3, v4		# vpxor		%xmm4,	%xmm3,	%xmm3
+
+	vperm	v3, v3, v3, v1		# vpshufb	%xmm1,	%xmm3,	%xmm3
+	addi	r8, r8, -16		# add	\$-16,	%r8
+	andi.	r8, r8, 0x30		# and	\$0x30,	%r8
+
+	#stvx	v3, 0, $out		# vmovdqu	%xmm3,	(%rdx)
+	vperm	v1, v3, v3, $outperm	# rotate left
+	vsel	v2, $outhead, v1, $outmask
+	vmr	$outhead, v1
+	stvx	v2, 0, $out
+	blr
+
+.align	4
+Lschedule_mangle_dec:
+	# inverse mix columns
+					# lea	.Lk_dksd(%rip),%r11
+	vsrb	v1, v0, v8		# vpsrlb	\$4,	%xmm4,	%xmm1	# 1 = hi
+	#and	v4, v0, v9		# vpand		%xmm9,	%xmm4,	%xmm4	# 4 = lo
+
+					# vmovdqa	0x00(%r11),	%xmm2
+	vperm	v2, v16, v16, v0	# vpshufb	%xmm4,	%xmm2,	%xmm2
+					# vmovdqa	0x10(%r11),	%xmm3
+	vperm	v3, v17, v17, v1	# vpshufb	%xmm1,	%xmm3,	%xmm3
+	vxor	v3, v3, v2		# vpxor		%xmm2,	%xmm3,	%xmm3
+	vperm	v3, v3, v9, v25		# vpshufb	%xmm5,	%xmm3,	%xmm3
+
+					# vmovdqa	0x20(%r11),	%xmm2
+	vperm	v2, v18, v18, v0	# vpshufb	%xmm4,	%xmm2,	%xmm2
+	vxor	v2, v2, v3		# vpxor		%xmm3,	%xmm2,	%xmm2
+					# vmovdqa	0x30(%r11),	%xmm3
+	vperm	v3, v19, v19, v1	# vpshufb	%xmm1,	%xmm3,	%xmm3
+	vxor	v3, v3, v2		# vpxor		%xmm2,	%xmm3,	%xmm3
+	vperm	v3, v3, v9, v25		# vpshufb	%xmm5,	%xmm3,	%xmm3
+
+					# vmovdqa	0x40(%r11),	%xmm2
+	vperm	v2, v20, v20, v0	# vpshufb	%xmm4,	%xmm2,	%xmm2
+	vxor	v2, v2, v3		# vpxor		%xmm3,	%xmm2,	%xmm2
+					# vmovdqa	0x50(%r11),	%xmm3
+	vperm	v3, v21, v21, v1	# vpshufb	%xmm1,	%xmm3,	%xmm3
+	vxor	v3, v3, v2		# vpxor		%xmm2,	%xmm3,	%xmm3
+
+					# vmovdqa	0x60(%r11),	%xmm2
+	vperm	v2, v22, v22, v0	# vpshufb	%xmm4,	%xmm2,	%xmm2
+	vperm	v3, v3, v9, v25		# vpshufb	%xmm5,	%xmm3,	%xmm3
+					# vmovdqa	0x70(%r11),	%xmm4
+	vperm	v4, v23, v23, v1	# vpshufb	%xmm1,	%xmm4,	%xmm4
+	lvx	v1, r8, r10		# vmovdqa	(%r8,%r10),	%xmm1
+	vxor	v2, v2, v3		# vpxor		%xmm3,	%xmm2,	%xmm2
+	vxor	v3, v4, v2		# vpxor		%xmm2,	%xmm4,	%xmm3
+
+	addi	$out, $out, -16		# add	\$-16,	%rdx
+
+	vperm	v3, v3, v3, v1		# vpshufb	%xmm1,	%xmm3,	%xmm3
+	addi	r8, r8, -16		# add	\$-16,	%r8
+	andi.	r8, r8, 0x30		# and	\$0x30,	%r8
+
+	#stvx	v3, 0, $out		# vmovdqu	%xmm3,	(%rdx)
+	vperm	v1, v3, v3, $outperm	# rotate left
+	vsel	v2, $outhead, v1, $outmask
+	vmr	$outhead, v1
+	stvx	v2, 0, $out
+	blr
+	.long	0
+	.byte	0,12,0x14,0,0,0,0,0
+
+.globl	.vpaes_set_encrypt_key
+.align	5
+.vpaes_set_encrypt_key:
+	mflr	r0
+	mfspr	r6, 256			# save vrsave
+	li	r7, -1
+	$PUSH	r0, $LRSAVE($sp)
+	mtspr	256, r7			# preserve all AltiVec registers
+
+	srwi	r9, $bits, 5		# shr	\$5,%eax
+	addi	r9, r9, 6		# add	\$5,%eax
+	stw	r9, 240($out)		# mov	%eax,240(%rdx)	# AES_KEY->rounds = nbits/32+5;
+
+	cmplw	$dir, $bits, $bits
+	li	r8, 0x30		# mov	\$0x30,%r8d
+	bl	_vpaes_schedule_core
+
+	$POP	r0, $LRSAVE($sp)
+	mtspr	256, r6			# restore vrsave
+	mtlr	r0
+	xor	r3, r3, r3
+	blr
+	.long	0
+	.byte	0,12,0x14,1,0,3,0
+	.long	0
+.size	.vpaes_set_encrypt_key,.-.vpaes_set_encrypt_key
+
+.globl	.vpaes_set_decrypt_key
+.align	4
+.vpaes_set_decrypt_key:
+	mflr	r0
+	mfspr	r6, 256			# save vrsave
+	li	r7, -1
+	$PUSH	r0, $LRSAVE($sp)
+	mtspr	256, r7			# preserve all AltiVec registers
+
+	srwi	r9, $bits, 5		# shr	\$5,%eax
+	addi	r9, r9, 6		# add	\$5,%eax
+	stw	r9, 240($out)		# mov	%eax,240(%rdx)	# AES_KEY->rounds = nbits/32+5;
+
+	slwi	r9, r9, 4		# shl	\$4,%eax
+	add	$out, $out, r9		# lea	(%rdx,%rax),%rdx
+
+	cmplwi	$dir, $bits, 0
+	srwi	r8, $bits, 1		# shr	\$1,%r8d
+	andi.	r8, r8, 32		# and	\$32,%r8d
+	xori	r8, r8, 32		# xor	\$32,%r8d	# nbits==192?0:32
+	bl	_vpaes_schedule_core
+
+	$POP	r0,  $LRSAVE($sp)
+	mtspr	256, r6			# restore vrsave
+	mtlr	r0
+	xor	r3, r3, r3
+	blr
+	.long	0
+	.byte	0,12,0x14,1,0,3,0
+	.long	0
+.size	.vpaes_set_decrypt_key,.-.vpaes_set_decrypt_key
+___
+}
+
+print $code;
+
+close STDOUT;
-- 
2.34.1