summaryrefslogtreecommitdiff
path: root/arch/x86/crypto/serpent-sse2-i586-asm_32.S
blob: d348f1553a793b3713688ee5de98a640c3bdf161 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
/*
 * Serpent Cipher 4-way parallel algorithm (i586/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>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 * USA
 *
 */

#include <linux/linkage.h>

.file "serpent-sse2-i586-asm_32.S"
.text

#define arg_ctx 4
#define arg_dst 8
#define arg_src 12
#define arg_xor 16

/**********************************************************************
  4-way SSE2 serpent
 **********************************************************************/
#define CTX %edx

#define RA %xmm0
#define RB %xmm1
#define RC %xmm2
#define RD %xmm3
#define RE %xmm4

#define RT0 %xmm5
#define RT1 %xmm6

#define RNOT %xmm7

#define get_key(i, j, t) \
	movd (4*(i)+(j))*4(CTX), t; \
	pshufd $0, t, t;

#define K(x0, x1, x2, x3, x4, i) \
	get_key(i, 0, x4); \
	get_key(i, 1, RT0); \
	get_key(i, 2, RT1); \
	pxor x4,		x0; \
	pxor RT0,		x1; \
	pxor RT1,		x2; \
	get_key(i, 3, x4); \
	pxor x4,		x3;

#define LK(x0, x1, x2, x3, x4, i) \
	movdqa x0,		x4; \
	pslld $13,		x0; \
	psrld $(32 - 13),	x4; \
	por x4,			x0; \
	pxor x0,		x1; \
	movdqa x2,		x4; \
	pslld $3,		x2; \
	psrld $(32 - 3),	x4; \
	por x4,			x2; \
	pxor x2,		x1; \
	movdqa x1,		x4; \
	pslld $1,		x1; \
	psrld $(32 - 1),	x4; \
	por x4,			x1; \
	movdqa x0,		x4; \
	pslld $3,		x4; \
	pxor x2,		x3; \
	pxor x4,		x3; \
	movdqa x3,		x4; \
	pslld $7,		x3; \
	psrld $(32 - 7),	x4; \
	por x4,			x3; \
	movdqa x1,		x4; \
	pslld $7,		x4; \
	pxor x1,		x0; \
	pxor x3,		x0; \
	pxor x3,		x2; \
	pxor x4,		x2; \
	movdqa x0,		x4; \
	get_key(i, 1, RT0); \
	pxor RT0,		x1; \
	get_key(i, 3, RT0); \
	pxor RT0,		x3; \
	pslld $5,		x0; \
	psrld $(32 - 5),	x4; \
	por x4,			x0; \
	movdqa x2,		x4; \
	pslld $22,		x2; \
	psrld $(32 - 22),	x4; \
	por x4,			x2; \
	get_key(i, 0, RT0); \
	pxor RT0,		x0; \
	get_key(i, 2, RT0); \
	pxor RT0,		x2;

#define KL(x0, x1, x2, x3, x4, i) \
	K(x0, x1, x2, x3, x4, i); \
	movdqa x0,		x4; \
	psrld $5,		x0; \
	pslld $(32 - 5),	x4; \
	por x4,			x0; \
	movdqa x2,		x4; \
	psrld $22,		x2; \
	pslld $(32 - 22),	x4; \
	por x4,			x2; \
	pxor x3,		x2; \
	pxor x3,		x0; \
	movdqa x1,		x4; \
	pslld $7,		x4; \
	pxor x1,		x0; \
	pxor x4,		x2; \
	movdqa x1,		x4; \
	psrld $1,		x1; \
	pslld $(32 - 1),	x4; \
	por x4,			x1; \
	movdqa x3,		x4; \
	psrld $7,		x3; \
	pslld $(32 - 7),	x4; \
	por x4,			x3; \
	pxor x0,		x1; \
	movdqa x0,		x4; \
	pslld $3,		x4; \
	pxor x4,		x3; \
	movdqa x0,		x4; \
	psrld $13,		x0; \
	pslld $(32 - 13),	x4; \
	por x4,			x0; \
	pxor x2,		x1; \
	pxor x2,		x3; \
	movdqa x2,		x4; \
	psrld $3,		x2; \
	pslld $(32 - 3),	x4; \
	por x4,			x2;

#define S0(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; \
	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(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; \
	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(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; \
	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(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; \
	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(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; \
	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(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; \
	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(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; \
	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(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; \
	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(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; \
	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(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; \
	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(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; \
	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(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; \
	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(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; \
	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(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; \
	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(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; \
	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(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; \
	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 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_4way)
	/* input:
	 *	arg_ctx(%esp): ctx, CTX
	 *	arg_dst(%esp): dst
	 *	arg_src(%esp): src
	 *	arg_xor(%esp): bool, if true: xor output
	 */

	pcmpeqd RNOT, RNOT;

	movl arg_ctx(%esp), CTX;

	movl arg_src(%esp), %eax;
	read_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);

					 K(RA, RB, RC, RD, RE, 0);
	S0(RA, RB, RC, RD, RE);		LK(RC, RB, RD, RA, RE, 1);
	S1(RC, RB, RD, RA, RE);		LK(RE, RD, RA, RC, RB, 2);
	S2(RE, RD, RA, RC, RB);		LK(RB, RD, RE, RC, RA, 3);
	S3(RB, RD, RE, RC, RA);		LK(RC, RA, RD, RB, RE, 4);
	S4(RC, RA, RD, RB, RE);		LK(RA, RD, RB, RE, RC, 5);
	S5(RA, RD, RB, RE, RC);		LK(RC, RA, RD, RE, RB, 6);
	S6(RC, RA, RD, RE, RB);		LK(RD, RB, RA, RE, RC, 7);
	S7(RD, RB, RA, RE, RC);		LK(RC, RA, RE, RD, RB, 8);
	S0(RC, RA, RE, RD, RB);		LK(RE, RA, RD, RC, RB, 9);
	S1(RE, RA, RD, RC, RB);		LK(RB, RD, RC, RE, RA, 10);
	S2(RB, RD, RC, RE, RA);		LK(RA, RD, RB, RE, RC, 11);
	S3(RA, RD, RB, RE, RC);		LK(RE, RC, RD, RA, RB, 12);
	S4(RE, RC, RD, RA, RB);		LK(RC, RD, RA, RB, RE, 13);
	S5(RC, RD, RA, RB, RE);		LK(RE, RC, RD, RB, RA, 14);
	S6(RE, RC, RD, RB, RA);		LK(RD, RA, RC, RB, RE, 15);
	S7(RD, RA, RC, RB, RE);		LK(RE, RC, RB, RD, RA, 16);
	S0(RE, RC, RB, RD, RA);		LK(RB, RC, RD, RE, RA, 17);
	S1(RB, RC, RD, RE, RA);		LK(RA, RD, RE, RB, RC, 18);
	S2(RA, RD, RE, RB, RC);		LK(RC, RD, RA, RB, RE, 19);
	S3(RC, RD, RA, RB, RE);		LK(RB, RE, RD, RC, RA, 20);
	S4(RB, RE, RD, RC, RA);		LK(RE, RD, RC, RA, RB, 21);
	S5(RE, RD, RC, RA, RB);		LK(RB, RE, RD, RA, RC, 22);
	S6(RB, RE, RD, RA, RC);		LK(RD, RC, RE, RA, RB, 23);
	S7(RD, RC, RE, RA, RB);		LK(RB, RE, RA, RD, RC, 24);
	S0(RB, RE, RA, RD, RC);		LK(RA, RE, RD, RB, RC, 25);
	S1(RA, RE, RD, RB, RC);		LK(RC, RD, RB, RA, RE, 26);
	S2(RC, RD, RB, RA, RE);		LK(RE, RD, RC, RA, RB, 27);
	S3(RE, RD, RC, RA, RB);		LK(RA, RB, RD, RE, RC, 28);
	S4(RA, RB, RD, RE, RC);		LK(RB, RD, RE, RC, RA, 29);
	S5(RB, RD, RE, RC, RA);		LK(RA, RB, RD, RC, RE, 30);
	S6(RA, RB, RD, RC, RE);		LK(RD, RE, RB, RC, RA, 31);
	S7(RD, RE, RB, RC, RA);		 K(RA, RB, RC, RD, RE, 32);

	movl arg_dst(%esp), %eax;

	cmpb $0, arg_xor(%esp);
	jnz .L__enc_xor4;

	write_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);

	ret;

.L__enc_xor4:
	xor_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);

	ret;
ENDPROC(__serpent_enc_blk_4way)

ENTRY(serpent_dec_blk_4way)
	/* input:
	 *	arg_ctx(%esp): ctx, CTX
	 *	arg_dst(%esp): dst
	 *	arg_src(%esp): src
	 */

	pcmpeqd RNOT, RNOT;

	movl arg_ctx(%esp), CTX;

	movl arg_src(%esp), %eax;
	read_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);

					 K(RA, RB, RC, RD, RE, 32);
	SI7(RA, RB, RC, RD, RE);	KL(RB, RD, RA, RE, RC, 31);
	SI6(RB, RD, RA, RE, RC);	KL(RA, RC, RE, RB, RD, 30);
	SI5(RA, RC, RE, RB, RD);	KL(RC, RD, RA, RE, RB, 29);
	SI4(RC, RD, RA, RE, RB);	KL(RC, RA, RB, RE, RD, 28);
	SI3(RC, RA, RB, RE, RD);	KL(RB, RC, RD, RE, RA, 27);
	SI2(RB, RC, RD, RE, RA);	KL(RC, RA, RE, RD, RB, 26);
	SI1(RC, RA, RE, RD, RB);	KL(RB, RA, RE, RD, RC, 25);
	SI0(RB, RA, RE, RD, RC);	KL(RE, RC, RA, RB, RD, 24);
	SI7(RE, RC, RA, RB, RD);	KL(RC, RB, RE, RD, RA, 23);
	SI6(RC, RB, RE, RD, RA);	KL(RE, RA, RD, RC, RB, 22);
	SI5(RE, RA, RD, RC, RB);	KL(RA, RB, RE, RD, RC, 21);
	SI4(RA, RB, RE, RD, RC);	KL(RA, RE, RC, RD, RB, 20);
	SI3(RA, RE, RC, RD, RB);	KL(RC, RA, RB, RD, RE, 19);
	SI2(RC, RA, RB, RD, RE);	KL(RA, RE, RD, RB, RC, 18);
	SI1(RA, RE, RD, RB, RC);	KL(RC, RE, RD, RB, RA, 17);
	SI0(RC, RE, RD, RB, RA);	KL(RD, RA, RE, RC, RB, 16);
	SI7(RD, RA, RE, RC, RB);	KL(RA, RC, RD, RB, RE, 15);
	SI6(RA, RC, RD, RB, RE);	KL(RD, RE, RB, RA, RC, 14);
	SI5(RD, RE, RB, RA, RC);	KL(RE, RC, RD, RB, RA, 13);
	SI4(RE, RC, RD, RB, RA);	KL(RE, RD, RA, RB, RC, 12);
	SI3(RE, RD, RA, RB, RC);	KL(RA, RE, RC, RB, RD, 11);
	SI2(RA, RE, RC, RB, RD);	KL(RE, RD, RB, RC, RA, 10);
	SI1(RE, RD, RB, RC, RA);	KL(RA, RD, RB, RC, RE, 9);
	SI0(RA, RD, RB, RC, RE);	KL(RB, RE, RD, RA, RC, 8);
	SI7(RB, RE, RD, RA, RC);	KL(RE, RA, RB, RC, RD, 7);
	SI6(RE, RA, RB, RC, RD);	KL(RB, RD, RC, RE, RA, 6);
	SI5(RB, RD, RC, RE, RA);	KL(RD, RA, RB, RC, RE, 5);
	SI4(RD, RA, RB, RC, RE);	KL(RD, RB, RE, RC, RA, 4);
	SI3(RD, RB, RE, RC, RA);	KL(RE, RD, RA, RC, RB, 3);
	SI2(RE, RD, RA, RC, RB);	KL(RD, RB, RC, RA, RE, 2);
	SI1(RD, RB, RC, RA, RE);	KL(RE, RB, RC, RA, RD, 1);
	SI0(RE, RB, RC, RA, RD);	 K(RC, RD, RB, RE, RA, 0);

	movl arg_dst(%esp), %eax;
	write_blocks(%eax, RC, RD, RB, RE, RT0, RT1, RA);

	ret;
ENDPROC(serpent_dec_blk_4way)