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|
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Serpent Cipher 8-way parallel algorithm (x86_64/SSE2)
*
* Copyright (C) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
*
* Based on crypto/serpent.c by
* Copyright (C) 2002 Dag Arne Osvik <osvik@ii.uib.no>
* 2003 Herbert Valerio Riedel <hvr@gnu.org>
*/
#include <linux/linkage.h>
.file "serpent-sse2-x86_64-asm_64.S"
.text
#define CTX %rdi
/**********************************************************************
8-way SSE2 serpent
**********************************************************************/
#define RA1 %xmm0
#define RB1 %xmm1
#define RC1 %xmm2
#define RD1 %xmm3
#define RE1 %xmm4
#define RA2 %xmm5
#define RB2 %xmm6
#define RC2 %xmm7
#define RD2 %xmm8
#define RE2 %xmm9
#define RNOT %xmm10
#define RK0 %xmm11
#define RK1 %xmm12
#define RK2 %xmm13
#define RK3 %xmm14
#define S0_1(x0, x1, x2, x3, x4) \
movdqa x3, x4; \
por x0, x3; \
pxor x4, x0; \
pxor x2, x4; \
pxor RNOT, x4; \
pxor x1, x3; \
pand x0, x1; \
pxor x4, x1; \
pxor x0, x2;
#define S0_2(x0, x1, x2, x3, x4) \
pxor x3, x0; \
por x0, x4; \
pxor x2, x0; \
pand x1, x2; \
pxor x2, x3; \
pxor RNOT, x1; \
pxor x4, x2; \
pxor x2, x1;
#define S1_1(x0, x1, x2, x3, x4) \
movdqa x1, x4; \
pxor x0, x1; \
pxor x3, x0; \
pxor RNOT, x3; \
pand x1, x4; \
por x1, x0; \
pxor x2, x3; \
pxor x3, x0; \
pxor x3, x1;
#define S1_2(x0, x1, x2, x3, x4) \
pxor x4, x3; \
por x4, x1; \
pxor x2, x4; \
pand x0, x2; \
pxor x1, x2; \
por x0, x1; \
pxor RNOT, x0; \
pxor x2, x0; \
pxor x1, x4;
#define S2_1(x0, x1, x2, x3, x4) \
pxor RNOT, x3; \
pxor x0, x1; \
movdqa x0, x4; \
pand x2, x0; \
pxor x3, x0; \
por x4, x3; \
pxor x1, x2; \
pxor x1, x3; \
pand x0, x1;
#define S2_2(x0, x1, x2, x3, x4) \
pxor x2, x0; \
pand x3, x2; \
por x1, x3; \
pxor RNOT, x0; \
pxor x0, x3; \
pxor x0, x4; \
pxor x2, x0; \
por x2, x1;
#define S3_1(x0, x1, x2, x3, x4) \
movdqa x1, x4; \
pxor x3, x1; \
por x0, x3; \
pand x0, x4; \
pxor x2, x0; \
pxor x1, x2; \
pand x3, x1; \
pxor x3, x2; \
por x4, x0; \
pxor x3, x4;
#define S3_2(x0, x1, x2, x3, x4) \
pxor x0, x1; \
pand x3, x0; \
pand x4, x3; \
pxor x2, x3; \
por x1, x4; \
pand x1, x2; \
pxor x3, x4; \
pxor x3, x0; \
pxor x2, x3;
#define S4_1(x0, x1, x2, x3, x4) \
movdqa x3, x4; \
pand x0, x3; \
pxor x4, x0; \
pxor x2, x3; \
por x4, x2; \
pxor x1, x0; \
pxor x3, x4; \
por x0, x2; \
pxor x1, x2;
#define S4_2(x0, x1, x2, x3, x4) \
pand x0, x1; \
pxor x4, x1; \
pand x2, x4; \
pxor x3, x2; \
pxor x0, x4; \
por x1, x3; \
pxor RNOT, x1; \
pxor x0, x3;
#define S5_1(x0, x1, x2, x3, x4) \
movdqa x1, x4; \
por x0, x1; \
pxor x1, x2; \
pxor RNOT, x3; \
pxor x0, x4; \
pxor x2, x0; \
pand x4, x1; \
por x3, x4; \
pxor x0, x4;
#define S5_2(x0, x1, x2, x3, x4) \
pand x3, x0; \
pxor x3, x1; \
pxor x2, x3; \
pxor x1, x0; \
pand x4, x2; \
pxor x2, x1; \
pand x0, x2; \
pxor x2, x3;
#define S6_1(x0, x1, x2, x3, x4) \
movdqa x1, x4; \
pxor x0, x3; \
pxor x2, x1; \
pxor x0, x2; \
pand x3, x0; \
por x3, x1; \
pxor RNOT, x4; \
pxor x1, x0; \
pxor x2, x1;
#define S6_2(x0, x1, x2, x3, x4) \
pxor x4, x3; \
pxor x0, x4; \
pand x0, x2; \
pxor x1, x4; \
pxor x3, x2; \
pand x1, x3; \
pxor x0, x3; \
pxor x2, x1;
#define S7_1(x0, x1, x2, x3, x4) \
pxor RNOT, x1; \
movdqa x1, x4; \
pxor RNOT, x0; \
pand x2, x1; \
pxor x3, x1; \
por x4, x3; \
pxor x2, x4; \
pxor x3, x2; \
pxor x0, x3; \
por x1, x0;
#define S7_2(x0, x1, x2, x3, x4) \
pand x0, x2; \
pxor x4, x0; \
pxor x3, x4; \
pand x0, x3; \
pxor x1, x4; \
pxor x4, x2; \
pxor x1, x3; \
por x0, x4; \
pxor x1, x4;
#define SI0_1(x0, x1, x2, x3, x4) \
movdqa x3, x4; \
pxor x0, x1; \
por x1, x3; \
pxor x1, x4; \
pxor RNOT, x0; \
pxor x3, x2; \
pxor x0, x3; \
pand x1, x0; \
pxor x2, x0;
#define SI0_2(x0, x1, x2, x3, x4) \
pand x3, x2; \
pxor x4, x3; \
pxor x3, x2; \
pxor x3, x1; \
pand x0, x3; \
pxor x0, x1; \
pxor x2, x0; \
pxor x3, x4;
#define SI1_1(x0, x1, x2, x3, x4) \
pxor x3, x1; \
movdqa x0, x4; \
pxor x2, x0; \
pxor RNOT, x2; \
por x1, x4; \
pxor x3, x4; \
pand x1, x3; \
pxor x2, x1; \
pand x4, x2;
#define SI1_2(x0, x1, x2, x3, x4) \
pxor x1, x4; \
por x3, x1; \
pxor x0, x3; \
pxor x0, x2; \
por x4, x0; \
pxor x4, x2; \
pxor x0, x1; \
pxor x1, x4;
#define SI2_1(x0, x1, x2, x3, x4) \
pxor x1, x2; \
movdqa x3, x4; \
pxor RNOT, x3; \
por x2, x3; \
pxor x4, x2; \
pxor x0, x4; \
pxor x1, x3; \
por x2, x1; \
pxor x0, x2;
#define SI2_2(x0, x1, x2, x3, x4) \
pxor x4, x1; \
por x3, x4; \
pxor x3, x2; \
pxor x2, x4; \
pand x1, x2; \
pxor x3, x2; \
pxor x4, x3; \
pxor x0, x4;
#define SI3_1(x0, x1, x2, x3, x4) \
pxor x1, x2; \
movdqa x1, x4; \
pand x2, x1; \
pxor x0, x1; \
por x4, x0; \
pxor x3, x4; \
pxor x3, x0; \
por x1, x3; \
pxor x2, x1;
#define SI3_2(x0, x1, x2, x3, x4) \
pxor x3, x1; \
pxor x2, x0; \
pxor x3, x2; \
pand x1, x3; \
pxor x0, x1; \
pand x2, x0; \
pxor x3, x4; \
pxor x0, x3; \
pxor x1, x0;
#define SI4_1(x0, x1, x2, x3, x4) \
pxor x3, x2; \
movdqa x0, x4; \
pand x1, x0; \
pxor x2, x0; \
por x3, x2; \
pxor RNOT, x4; \
pxor x0, x1; \
pxor x2, x0; \
pand x4, x2;
#define SI4_2(x0, x1, x2, x3, x4) \
pxor x0, x2; \
por x4, x0; \
pxor x3, x0; \
pand x2, x3; \
pxor x3, x4; \
pxor x1, x3; \
pand x0, x1; \
pxor x1, x4; \
pxor x3, x0;
#define SI5_1(x0, x1, x2, x3, x4) \
movdqa x1, x4; \
por x2, x1; \
pxor x4, x2; \
pxor x3, x1; \
pand x4, x3; \
pxor x3, x2; \
por x0, x3; \
pxor RNOT, x0; \
pxor x2, x3; \
por x0, x2;
#define SI5_2(x0, x1, x2, x3, x4) \
pxor x1, x4; \
pxor x4, x2; \
pand x0, x4; \
pxor x1, x0; \
pxor x3, x1; \
pand x2, x0; \
pxor x3, x2; \
pxor x2, x0; \
pxor x4, x2; \
pxor x3, x4;
#define SI6_1(x0, x1, x2, x3, x4) \
pxor x2, x0; \
movdqa x0, x4; \
pand x3, x0; \
pxor x3, x2; \
pxor x2, x0; \
pxor x1, x3; \
por x4, x2; \
pxor x3, x2; \
pand x0, x3;
#define SI6_2(x0, x1, x2, x3, x4) \
pxor RNOT, x0; \
pxor x1, x3; \
pand x2, x1; \
pxor x0, x4; \
pxor x4, x3; \
pxor x2, x4; \
pxor x1, x0; \
pxor x0, x2;
#define SI7_1(x0, x1, x2, x3, x4) \
movdqa x3, x4; \
pand x0, x3; \
pxor x2, x0; \
por x4, x2; \
pxor x1, x4; \
pxor RNOT, x0; \
por x3, x1; \
pxor x0, x4; \
pand x2, x0; \
pxor x1, x0;
#define SI7_2(x0, x1, x2, x3, x4) \
pand x2, x1; \
pxor x2, x3; \
pxor x3, x4; \
pand x3, x2; \
por x0, x3; \
pxor x4, x1; \
pxor x4, x3; \
pand x0, x4; \
pxor x2, x4;
#define get_key(i, j, t) \
movd (4*(i)+(j))*4(CTX), t; \
pshufd $0, t, t;
#define K2(x0, x1, x2, x3, x4, i) \
get_key(i, 0, RK0); \
get_key(i, 1, RK1); \
get_key(i, 2, RK2); \
get_key(i, 3, RK3); \
pxor RK0, x0 ## 1; \
pxor RK1, x1 ## 1; \
pxor RK2, x2 ## 1; \
pxor RK3, x3 ## 1; \
pxor RK0, x0 ## 2; \
pxor RK1, x1 ## 2; \
pxor RK2, x2 ## 2; \
pxor RK3, x3 ## 2;
#define LK2(x0, x1, x2, x3, x4, i) \
movdqa x0 ## 1, x4 ## 1; \
pslld $13, x0 ## 1; \
psrld $(32 - 13), x4 ## 1; \
por x4 ## 1, x0 ## 1; \
pxor x0 ## 1, x1 ## 1; \
movdqa x2 ## 1, x4 ## 1; \
pslld $3, x2 ## 1; \
psrld $(32 - 3), x4 ## 1; \
por x4 ## 1, x2 ## 1; \
pxor x2 ## 1, x1 ## 1; \
movdqa x0 ## 2, x4 ## 2; \
pslld $13, x0 ## 2; \
psrld $(32 - 13), x4 ## 2; \
por x4 ## 2, x0 ## 2; \
pxor x0 ## 2, x1 ## 2; \
movdqa x2 ## 2, x4 ## 2; \
pslld $3, x2 ## 2; \
psrld $(32 - 3), x4 ## 2; \
por x4 ## 2, x2 ## 2; \
pxor x2 ## 2, x1 ## 2; \
movdqa x1 ## 1, x4 ## 1; \
pslld $1, x1 ## 1; \
psrld $(32 - 1), x4 ## 1; \
por x4 ## 1, x1 ## 1; \
movdqa x0 ## 1, x4 ## 1; \
pslld $3, x4 ## 1; \
pxor x2 ## 1, x3 ## 1; \
pxor x4 ## 1, x3 ## 1; \
movdqa x3 ## 1, x4 ## 1; \
get_key(i, 1, RK1); \
movdqa x1 ## 2, x4 ## 2; \
pslld $1, x1 ## 2; \
psrld $(32 - 1), x4 ## 2; \
por x4 ## 2, x1 ## 2; \
movdqa x0 ## 2, x4 ## 2; \
pslld $3, x4 ## 2; \
pxor x2 ## 2, x3 ## 2; \
pxor x4 ## 2, x3 ## 2; \
movdqa x3 ## 2, x4 ## 2; \
get_key(i, 3, RK3); \
pslld $7, x3 ## 1; \
psrld $(32 - 7), x4 ## 1; \
por x4 ## 1, x3 ## 1; \
movdqa x1 ## 1, x4 ## 1; \
pslld $7, x4 ## 1; \
pxor x1 ## 1, x0 ## 1; \
pxor x3 ## 1, x0 ## 1; \
pxor x3 ## 1, x2 ## 1; \
pxor x4 ## 1, x2 ## 1; \
get_key(i, 0, RK0); \
pslld $7, x3 ## 2; \
psrld $(32 - 7), x4 ## 2; \
por x4 ## 2, x3 ## 2; \
movdqa x1 ## 2, x4 ## 2; \
pslld $7, x4 ## 2; \
pxor x1 ## 2, x0 ## 2; \
pxor x3 ## 2, x0 ## 2; \
pxor x3 ## 2, x2 ## 2; \
pxor x4 ## 2, x2 ## 2; \
get_key(i, 2, RK2); \
pxor RK1, x1 ## 1; \
pxor RK3, x3 ## 1; \
movdqa x0 ## 1, x4 ## 1; \
pslld $5, x0 ## 1; \
psrld $(32 - 5), x4 ## 1; \
por x4 ## 1, x0 ## 1; \
movdqa x2 ## 1, x4 ## 1; \
pslld $22, x2 ## 1; \
psrld $(32 - 22), x4 ## 1; \
por x4 ## 1, x2 ## 1; \
pxor RK0, x0 ## 1; \
pxor RK2, x2 ## 1; \
pxor RK1, x1 ## 2; \
pxor RK3, x3 ## 2; \
movdqa x0 ## 2, x4 ## 2; \
pslld $5, x0 ## 2; \
psrld $(32 - 5), x4 ## 2; \
por x4 ## 2, x0 ## 2; \
movdqa x2 ## 2, x4 ## 2; \
pslld $22, x2 ## 2; \
psrld $(32 - 22), x4 ## 2; \
por x4 ## 2, x2 ## 2; \
pxor RK0, x0 ## 2; \
pxor RK2, x2 ## 2;
#define KL2(x0, x1, x2, x3, x4, i) \
pxor RK0, x0 ## 1; \
pxor RK2, x2 ## 1; \
movdqa x0 ## 1, x4 ## 1; \
psrld $5, x0 ## 1; \
pslld $(32 - 5), x4 ## 1; \
por x4 ## 1, x0 ## 1; \
pxor RK3, x3 ## 1; \
pxor RK1, x1 ## 1; \
movdqa x2 ## 1, x4 ## 1; \
psrld $22, x2 ## 1; \
pslld $(32 - 22), x4 ## 1; \
por x4 ## 1, x2 ## 1; \
pxor x3 ## 1, x2 ## 1; \
pxor RK0, x0 ## 2; \
pxor RK2, x2 ## 2; \
movdqa x0 ## 2, x4 ## 2; \
psrld $5, x0 ## 2; \
pslld $(32 - 5), x4 ## 2; \
por x4 ## 2, x0 ## 2; \
pxor RK3, x3 ## 2; \
pxor RK1, x1 ## 2; \
movdqa x2 ## 2, x4 ## 2; \
psrld $22, x2 ## 2; \
pslld $(32 - 22), x4 ## 2; \
por x4 ## 2, x2 ## 2; \
pxor x3 ## 2, x2 ## 2; \
pxor x3 ## 1, x0 ## 1; \
movdqa x1 ## 1, x4 ## 1; \
pslld $7, x4 ## 1; \
pxor x1 ## 1, x0 ## 1; \
pxor x4 ## 1, x2 ## 1; \
movdqa x1 ## 1, x4 ## 1; \
psrld $1, x1 ## 1; \
pslld $(32 - 1), x4 ## 1; \
por x4 ## 1, x1 ## 1; \
pxor x3 ## 2, x0 ## 2; \
movdqa x1 ## 2, x4 ## 2; \
pslld $7, x4 ## 2; \
pxor x1 ## 2, x0 ## 2; \
pxor x4 ## 2, x2 ## 2; \
movdqa x1 ## 2, x4 ## 2; \
psrld $1, x1 ## 2; \
pslld $(32 - 1), x4 ## 2; \
por x4 ## 2, x1 ## 2; \
movdqa x3 ## 1, x4 ## 1; \
psrld $7, x3 ## 1; \
pslld $(32 - 7), x4 ## 1; \
por x4 ## 1, x3 ## 1; \
pxor x0 ## 1, x1 ## 1; \
movdqa x0 ## 1, x4 ## 1; \
pslld $3, x4 ## 1; \
pxor x4 ## 1, x3 ## 1; \
movdqa x0 ## 1, x4 ## 1; \
movdqa x3 ## 2, x4 ## 2; \
psrld $7, x3 ## 2; \
pslld $(32 - 7), x4 ## 2; \
por x4 ## 2, x3 ## 2; \
pxor x0 ## 2, x1 ## 2; \
movdqa x0 ## 2, x4 ## 2; \
pslld $3, x4 ## 2; \
pxor x4 ## 2, x3 ## 2; \
movdqa x0 ## 2, x4 ## 2; \
psrld $13, x0 ## 1; \
pslld $(32 - 13), x4 ## 1; \
por x4 ## 1, x0 ## 1; \
pxor x2 ## 1, x1 ## 1; \
pxor x2 ## 1, x3 ## 1; \
movdqa x2 ## 1, x4 ## 1; \
psrld $3, x2 ## 1; \
pslld $(32 - 3), x4 ## 1; \
por x4 ## 1, x2 ## 1; \
psrld $13, x0 ## 2; \
pslld $(32 - 13), x4 ## 2; \
por x4 ## 2, x0 ## 2; \
pxor x2 ## 2, x1 ## 2; \
pxor x2 ## 2, x3 ## 2; \
movdqa x2 ## 2, x4 ## 2; \
psrld $3, x2 ## 2; \
pslld $(32 - 3), x4 ## 2; \
por x4 ## 2, x2 ## 2;
#define S(SBOX, x0, x1, x2, x3, x4) \
SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2);
#define SP(SBOX, x0, x1, x2, x3, x4, i) \
get_key(i, 0, RK0); \
SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
get_key(i, 2, RK2); \
SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
get_key(i, 3, RK3); \
SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
get_key(i, 1, RK1); \
SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
movdqa x0, t2; \
punpckldq x1, x0; \
punpckhdq x1, t2; \
movdqa x2, t1; \
punpckhdq x3, x2; \
punpckldq x3, t1; \
movdqa x0, x1; \
punpcklqdq t1, x0; \
punpckhqdq t1, x1; \
movdqa t2, x3; \
punpcklqdq x2, t2; \
punpckhqdq x2, x3; \
movdqa t2, x2;
#define read_blocks(in, x0, x1, x2, x3, t0, t1, t2) \
movdqu (0*4*4)(in), x0; \
movdqu (1*4*4)(in), x1; \
movdqu (2*4*4)(in), x2; \
movdqu (3*4*4)(in), x3; \
\
transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
#define write_blocks(out, x0, x1, x2, x3, t0, t1, t2) \
transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
\
movdqu x0, (0*4*4)(out); \
movdqu x1, (1*4*4)(out); \
movdqu x2, (2*4*4)(out); \
movdqu x3, (3*4*4)(out);
#define xor_blocks(out, x0, x1, x2, x3, t0, t1, t2) \
transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
\
movdqu (0*4*4)(out), t0; \
pxor t0, x0; \
movdqu x0, (0*4*4)(out); \
movdqu (1*4*4)(out), t0; \
pxor t0, x1; \
movdqu x1, (1*4*4)(out); \
movdqu (2*4*4)(out), t0; \
pxor t0, x2; \
movdqu x2, (2*4*4)(out); \
movdqu (3*4*4)(out), t0; \
pxor t0, x3; \
movdqu x3, (3*4*4)(out);
ENTRY(__serpent_enc_blk_8way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
* %rdx: src
* %rcx: bool, if true: xor output
*/
pcmpeqd RNOT, RNOT;
leaq (4*4*4)(%rdx), %rax;
read_blocks(%rdx, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
read_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
K2(RA, RB, RC, RD, RE, 0);
S(S0, RA, RB, RC, RD, RE); LK2(RC, RB, RD, RA, RE, 1);
S(S1, RC, RB, RD, RA, RE); LK2(RE, RD, RA, RC, RB, 2);
S(S2, RE, RD, RA, RC, RB); LK2(RB, RD, RE, RC, RA, 3);
S(S3, RB, RD, RE, RC, RA); LK2(RC, RA, RD, RB, RE, 4);
S(S4, RC, RA, RD, RB, RE); LK2(RA, RD, RB, RE, RC, 5);
S(S5, RA, RD, RB, RE, RC); LK2(RC, RA, RD, RE, RB, 6);
S(S6, RC, RA, RD, RE, RB); LK2(RD, RB, RA, RE, RC, 7);
S(S7, RD, RB, RA, RE, RC); LK2(RC, RA, RE, RD, RB, 8);
S(S0, RC, RA, RE, RD, RB); LK2(RE, RA, RD, RC, RB, 9);
S(S1, RE, RA, RD, RC, RB); LK2(RB, RD, RC, RE, RA, 10);
S(S2, RB, RD, RC, RE, RA); LK2(RA, RD, RB, RE, RC, 11);
S(S3, RA, RD, RB, RE, RC); LK2(RE, RC, RD, RA, RB, 12);
S(S4, RE, RC, RD, RA, RB); LK2(RC, RD, RA, RB, RE, 13);
S(S5, RC, RD, RA, RB, RE); LK2(RE, RC, RD, RB, RA, 14);
S(S6, RE, RC, RD, RB, RA); LK2(RD, RA, RC, RB, RE, 15);
S(S7, RD, RA, RC, RB, RE); LK2(RE, RC, RB, RD, RA, 16);
S(S0, RE, RC, RB, RD, RA); LK2(RB, RC, RD, RE, RA, 17);
S(S1, RB, RC, RD, RE, RA); LK2(RA, RD, RE, RB, RC, 18);
S(S2, RA, RD, RE, RB, RC); LK2(RC, RD, RA, RB, RE, 19);
S(S3, RC, RD, RA, RB, RE); LK2(RB, RE, RD, RC, RA, 20);
S(S4, RB, RE, RD, RC, RA); LK2(RE, RD, RC, RA, RB, 21);
S(S5, RE, RD, RC, RA, RB); LK2(RB, RE, RD, RA, RC, 22);
S(S6, RB, RE, RD, RA, RC); LK2(RD, RC, RE, RA, RB, 23);
S(S7, RD, RC, RE, RA, RB); LK2(RB, RE, RA, RD, RC, 24);
S(S0, RB, RE, RA, RD, RC); LK2(RA, RE, RD, RB, RC, 25);
S(S1, RA, RE, RD, RB, RC); LK2(RC, RD, RB, RA, RE, 26);
S(S2, RC, RD, RB, RA, RE); LK2(RE, RD, RC, RA, RB, 27);
S(S3, RE, RD, RC, RA, RB); LK2(RA, RB, RD, RE, RC, 28);
S(S4, RA, RB, RD, RE, RC); LK2(RB, RD, RE, RC, RA, 29);
S(S5, RB, RD, RE, RC, RA); LK2(RA, RB, RD, RC, RE, 30);
S(S6, RA, RB, RD, RC, RE); LK2(RD, RE, RB, RC, RA, 31);
S(S7, RD, RE, RB, RC, RA); K2(RA, RB, RC, RD, RE, 32);
leaq (4*4*4)(%rsi), %rax;
testb %cl, %cl;
jnz .L__enc_xor8;
write_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
write_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
ret;
.L__enc_xor8:
xor_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
ret;
ENDPROC(__serpent_enc_blk_8way)
ENTRY(serpent_dec_blk_8way)
/* input:
* %rdi: ctx, CTX
* %rsi: dst
* %rdx: src
*/
pcmpeqd RNOT, RNOT;
leaq (4*4*4)(%rdx), %rax;
read_blocks(%rdx, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
read_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
K2(RA, RB, RC, RD, RE, 32);
SP(SI7, RA, RB, RC, RD, RE, 31); KL2(RB, RD, RA, RE, RC, 31);
SP(SI6, RB, RD, RA, RE, RC, 30); KL2(RA, RC, RE, RB, RD, 30);
SP(SI5, RA, RC, RE, RB, RD, 29); KL2(RC, RD, RA, RE, RB, 29);
SP(SI4, RC, RD, RA, RE, RB, 28); KL2(RC, RA, RB, RE, RD, 28);
SP(SI3, RC, RA, RB, RE, RD, 27); KL2(RB, RC, RD, RE, RA, 27);
SP(SI2, RB, RC, RD, RE, RA, 26); KL2(RC, RA, RE, RD, RB, 26);
SP(SI1, RC, RA, RE, RD, RB, 25); KL2(RB, RA, RE, RD, RC, 25);
SP(SI0, RB, RA, RE, RD, RC, 24); KL2(RE, RC, RA, RB, RD, 24);
SP(SI7, RE, RC, RA, RB, RD, 23); KL2(RC, RB, RE, RD, RA, 23);
SP(SI6, RC, RB, RE, RD, RA, 22); KL2(RE, RA, RD, RC, RB, 22);
SP(SI5, RE, RA, RD, RC, RB, 21); KL2(RA, RB, RE, RD, RC, 21);
SP(SI4, RA, RB, RE, RD, RC, 20); KL2(RA, RE, RC, RD, RB, 20);
SP(SI3, RA, RE, RC, RD, RB, 19); KL2(RC, RA, RB, RD, RE, 19);
SP(SI2, RC, RA, RB, RD, RE, 18); KL2(RA, RE, RD, RB, RC, 18);
SP(SI1, RA, RE, RD, RB, RC, 17); KL2(RC, RE, RD, RB, RA, 17);
SP(SI0, RC, RE, RD, RB, RA, 16); KL2(RD, RA, RE, RC, RB, 16);
SP(SI7, RD, RA, RE, RC, RB, 15); KL2(RA, RC, RD, RB, RE, 15);
SP(SI6, RA, RC, RD, RB, RE, 14); KL2(RD, RE, RB, RA, RC, 14);
SP(SI5, RD, RE, RB, RA, RC, 13); KL2(RE, RC, RD, RB, RA, 13);
SP(SI4, RE, RC, RD, RB, RA, 12); KL2(RE, RD, RA, RB, RC, 12);
SP(SI3, RE, RD, RA, RB, RC, 11); KL2(RA, RE, RC, RB, RD, 11);
SP(SI2, RA, RE, RC, RB, RD, 10); KL2(RE, RD, RB, RC, RA, 10);
SP(SI1, RE, RD, RB, RC, RA, 9); KL2(RA, RD, RB, RC, RE, 9);
SP(SI0, RA, RD, RB, RC, RE, 8); KL2(RB, RE, RD, RA, RC, 8);
SP(SI7, RB, RE, RD, RA, RC, 7); KL2(RE, RA, RB, RC, RD, 7);
SP(SI6, RE, RA, RB, RC, RD, 6); KL2(RB, RD, RC, RE, RA, 6);
SP(SI5, RB, RD, RC, RE, RA, 5); KL2(RD, RA, RB, RC, RE, 5);
SP(SI4, RD, RA, RB, RC, RE, 4); KL2(RD, RB, RE, RC, RA, 4);
SP(SI3, RD, RB, RE, RC, RA, 3); KL2(RE, RD, RA, RC, RB, 3);
SP(SI2, RE, RD, RA, RC, RB, 2); KL2(RD, RB, RC, RA, RE, 2);
SP(SI1, RD, RB, RC, RA, RE, 1); KL2(RE, RB, RC, RA, RD, 1);
S(SI0, RE, RB, RC, RA, RD); K2(RC, RD, RB, RE, RA, 0);
leaq (4*4*4)(%rsi), %rax;
write_blocks(%rsi, RC1, RD1, RB1, RE1, RK0, RK1, RK2);
write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2);
ret;
ENDPROC(serpent_dec_blk_8way)
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