2 # Copyright 2007-2016 The OpenSSL Project Authors. All Rights Reserved.
4 # Licensed under the OpenSSL license (the "License"). You may not use
5 # this file except in compliance with the License. You can obtain a copy
6 # in the file LICENSE in the source distribution or at
7 # https://www.openssl.org/source/license.html
10 # ====================================================================
11 # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
12 # project. The module is, however, dual licensed under OpenSSL and
13 # CRYPTOGAMS licenses depending on where you obtain it. For further
14 # details see http://www.openssl.org/~appro/cryptogams/.
15 # ====================================================================
21 # Code uses single 1K S-box and is >2 times faster than code generated
22 # by gcc-3.4.1. This is thanks to unique feature of ARMv4 ISA, which
23 # allows to merge logical or arithmetic operation with shift or rotate
24 # in one instruction and emit combined result every cycle. The module
25 # is endian-neutral. The performance is ~42 cycles/byte for 128-bit
26 # key [on single-issue Xscale PXA250 core].
30 # AES_set_[en|de]crypt_key is added.
34 # Rescheduling for dual-issue pipeline resulted in 12% improvement on
35 # Cortex A8 core and ~25 cycles per byte processed with 128-bit key.
39 # Profiler-assisted and platform-specific optimization resulted in 16%
40 # improvement on Cortex A8 core and ~21.5 cycles per byte.
43 if ($flavour=~/\w[\w\-]*\.\w+$/) { $output=$flavour; undef $flavour; }
44 else { while (($output=shift) && ($output!~/\w[\w\-]*\.\w+$/)) {} }
46 if ($flavour && $flavour ne "void") {
47 $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
48 ( $xlate="${dir}arm-xlate.pl" and -f $xlate ) or
49 ( $xlate="${dir}../../perlasm/arm-xlate.pl" and -f $xlate) or
50 die "can't locate arm-xlate.pl";
52 open STDOUT,"| \"$^X\" $xlate $flavour $output";
54 open STDOUT,">$output";
74 # include "arm_arch.h"
76 # define __ARM_ARCH__ __LINUX_ARM_ARCH__
80 #if defined(__thumb2__) && !defined(__APPLE__)
91 .word 0xc66363a5, 0xf87c7c84, 0xee777799, 0xf67b7b8d
92 .word 0xfff2f20d, 0xd66b6bbd, 0xde6f6fb1, 0x91c5c554
93 .word 0x60303050, 0x02010103, 0xce6767a9, 0x562b2b7d
94 .word 0xe7fefe19, 0xb5d7d762, 0x4dababe6, 0xec76769a
95 .word 0x8fcaca45, 0x1f82829d, 0x89c9c940, 0xfa7d7d87
96 .word 0xeffafa15, 0xb25959eb, 0x8e4747c9, 0xfbf0f00b
97 .word 0x41adadec, 0xb3d4d467, 0x5fa2a2fd, 0x45afafea
98 .word 0x239c9cbf, 0x53a4a4f7, 0xe4727296, 0x9bc0c05b
99 .word 0x75b7b7c2, 0xe1fdfd1c, 0x3d9393ae, 0x4c26266a
100 .word 0x6c36365a, 0x7e3f3f41, 0xf5f7f702, 0x83cccc4f
101 .word 0x6834345c, 0x51a5a5f4, 0xd1e5e534, 0xf9f1f108
102 .word 0xe2717193, 0xabd8d873, 0x62313153, 0x2a15153f
103 .word 0x0804040c, 0x95c7c752, 0x46232365, 0x9dc3c35e
104 .word 0x30181828, 0x379696a1, 0x0a05050f, 0x2f9a9ab5
105 .word 0x0e070709, 0x24121236, 0x1b80809b, 0xdfe2e23d
106 .word 0xcdebeb26, 0x4e272769, 0x7fb2b2cd, 0xea75759f
107 .word 0x1209091b, 0x1d83839e, 0x582c2c74, 0x341a1a2e
108 .word 0x361b1b2d, 0xdc6e6eb2, 0xb45a5aee, 0x5ba0a0fb
109 .word 0xa45252f6, 0x763b3b4d, 0xb7d6d661, 0x7db3b3ce
110 .word 0x5229297b, 0xdde3e33e, 0x5e2f2f71, 0x13848497
111 .word 0xa65353f5, 0xb9d1d168, 0x00000000, 0xc1eded2c
112 .word 0x40202060, 0xe3fcfc1f, 0x79b1b1c8, 0xb65b5bed
113 .word 0xd46a6abe, 0x8dcbcb46, 0x67bebed9, 0x7239394b
114 .word 0x944a4ade, 0x984c4cd4, 0xb05858e8, 0x85cfcf4a
115 .word 0xbbd0d06b, 0xc5efef2a, 0x4faaaae5, 0xedfbfb16
116 .word 0x864343c5, 0x9a4d4dd7, 0x66333355, 0x11858594
117 .word 0x8a4545cf, 0xe9f9f910, 0x04020206, 0xfe7f7f81
118 .word 0xa05050f0, 0x783c3c44, 0x259f9fba, 0x4ba8a8e3
119 .word 0xa25151f3, 0x5da3a3fe, 0x804040c0, 0x058f8f8a
120 .word 0x3f9292ad, 0x219d9dbc, 0x70383848, 0xf1f5f504
121 .word 0x63bcbcdf, 0x77b6b6c1, 0xafdada75, 0x42212163
122 .word 0x20101030, 0xe5ffff1a, 0xfdf3f30e, 0xbfd2d26d
123 .word 0x81cdcd4c, 0x180c0c14, 0x26131335, 0xc3ecec2f
124 .word 0xbe5f5fe1, 0x359797a2, 0x884444cc, 0x2e171739
125 .word 0x93c4c457, 0x55a7a7f2, 0xfc7e7e82, 0x7a3d3d47
126 .word 0xc86464ac, 0xba5d5de7, 0x3219192b, 0xe6737395
127 .word 0xc06060a0, 0x19818198, 0x9e4f4fd1, 0xa3dcdc7f
128 .word 0x44222266, 0x542a2a7e, 0x3b9090ab, 0x0b888883
129 .word 0x8c4646ca, 0xc7eeee29, 0x6bb8b8d3, 0x2814143c
130 .word 0xa7dede79, 0xbc5e5ee2, 0x160b0b1d, 0xaddbdb76
131 .word 0xdbe0e03b, 0x64323256, 0x743a3a4e, 0x140a0a1e
132 .word 0x924949db, 0x0c06060a, 0x4824246c, 0xb85c5ce4
133 .word 0x9fc2c25d, 0xbdd3d36e, 0x43acacef, 0xc46262a6
134 .word 0x399191a8, 0x319595a4, 0xd3e4e437, 0xf279798b
135 .word 0xd5e7e732, 0x8bc8c843, 0x6e373759, 0xda6d6db7
136 .word 0x018d8d8c, 0xb1d5d564, 0x9c4e4ed2, 0x49a9a9e0
137 .word 0xd86c6cb4, 0xac5656fa, 0xf3f4f407, 0xcfeaea25
138 .word 0xca6565af, 0xf47a7a8e, 0x47aeaee9, 0x10080818
139 .word 0x6fbabad5, 0xf0787888, 0x4a25256f, 0x5c2e2e72
140 .word 0x381c1c24, 0x57a6a6f1, 0x73b4b4c7, 0x97c6c651
141 .word 0xcbe8e823, 0xa1dddd7c, 0xe874749c, 0x3e1f1f21
142 .word 0x964b4bdd, 0x61bdbddc, 0x0d8b8b86, 0x0f8a8a85
143 .word 0xe0707090, 0x7c3e3e42, 0x71b5b5c4, 0xcc6666aa
144 .word 0x904848d8, 0x06030305, 0xf7f6f601, 0x1c0e0e12
145 .word 0xc26161a3, 0x6a35355f, 0xae5757f9, 0x69b9b9d0
146 .word 0x17868691, 0x99c1c158, 0x3a1d1d27, 0x279e9eb9
147 .word 0xd9e1e138, 0xebf8f813, 0x2b9898b3, 0x22111133
148 .word 0xd26969bb, 0xa9d9d970, 0x078e8e89, 0x339494a7
149 .word 0x2d9b9bb6, 0x3c1e1e22, 0x15878792, 0xc9e9e920
150 .word 0x87cece49, 0xaa5555ff, 0x50282878, 0xa5dfdf7a
151 .word 0x038c8c8f, 0x59a1a1f8, 0x09898980, 0x1a0d0d17
152 .word 0x65bfbfda, 0xd7e6e631, 0x844242c6, 0xd06868b8
153 .word 0x824141c3, 0x299999b0, 0x5a2d2d77, 0x1e0f0f11
154 .word 0x7bb0b0cb, 0xa85454fc, 0x6dbbbbd6, 0x2c16163a
156 .byte 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5
157 .byte 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76
158 .byte 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0
159 .byte 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0
160 .byte 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc
161 .byte 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15
162 .byte 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a
163 .byte 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75
164 .byte 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0
165 .byte 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84
166 .byte 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b
167 .byte 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf
168 .byte 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85
169 .byte 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8
170 .byte 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5
171 .byte 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2
172 .byte 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17
173 .byte 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73
174 .byte 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88
175 .byte 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb
176 .byte 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c
177 .byte 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79
178 .byte 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9
179 .byte 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08
180 .byte 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6
181 .byte 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a
182 .byte 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e
183 .byte 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e
184 .byte 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94
185 .byte 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf
186 .byte 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68
187 .byte 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
189 .word 0x01000000, 0x02000000, 0x04000000, 0x08000000
190 .word 0x10000000, 0x20000000, 0x40000000, 0x80000000
191 .word 0x1B000000, 0x36000000, 0, 0, 0, 0, 0, 0
192 .size AES_Te,.-AES_Te
194 @ void AES_encrypt(const unsigned char *in, unsigned char *out,
195 @ const AES_KEY *key) {
197 .type AES_encrypt,%function
201 sub r3,pc,#8 @ AES_encrypt
205 stmdb sp!,{r1,r4-r12,lr}
209 sub $tbl,r3,#AES_encrypt-AES_Te @ Te
214 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral
215 ldrb $t1,[$rounds,#2] @ manner...
216 ldrb $t2,[$rounds,#1]
217 ldrb $t3,[$rounds,#0]
218 orr $s0,$s0,$t1,lsl#8
219 ldrb $s1,[$rounds,#7]
220 orr $s0,$s0,$t2,lsl#16
221 ldrb $t1,[$rounds,#6]
222 orr $s0,$s0,$t3,lsl#24
223 ldrb $t2,[$rounds,#5]
224 ldrb $t3,[$rounds,#4]
225 orr $s1,$s1,$t1,lsl#8
226 ldrb $s2,[$rounds,#11]
227 orr $s1,$s1,$t2,lsl#16
228 ldrb $t1,[$rounds,#10]
229 orr $s1,$s1,$t3,lsl#24
230 ldrb $t2,[$rounds,#9]
231 ldrb $t3,[$rounds,#8]
232 orr $s2,$s2,$t1,lsl#8
233 ldrb $s3,[$rounds,#15]
234 orr $s2,$s2,$t2,lsl#16
235 ldrb $t1,[$rounds,#14]
236 orr $s2,$s2,$t3,lsl#24
237 ldrb $t2,[$rounds,#13]
238 ldrb $t3,[$rounds,#12]
239 orr $s3,$s3,$t1,lsl#8
240 orr $s3,$s3,$t2,lsl#16
241 orr $s3,$s3,$t3,lsl#24
246 ldr $s3,[$rounds,#12]
254 bl _armv4_AES_encrypt
256 ldr $rounds,[sp],#4 @ pop out
267 str $s3,[$rounds,#12]
269 mov $t1,$s0,lsr#24 @ write output in endian-neutral
270 mov $t2,$s0,lsr#16 @ manner...
272 strb $t1,[$rounds,#0]
273 strb $t2,[$rounds,#1]
275 strb $t3,[$rounds,#2]
277 strb $s0,[$rounds,#3]
279 strb $t1,[$rounds,#4]
280 strb $t2,[$rounds,#5]
282 strb $t3,[$rounds,#6]
284 strb $s1,[$rounds,#7]
286 strb $t1,[$rounds,#8]
287 strb $t2,[$rounds,#9]
289 strb $t3,[$rounds,#10]
291 strb $s2,[$rounds,#11]
293 strb $t1,[$rounds,#12]
294 strb $t2,[$rounds,#13]
295 strb $t3,[$rounds,#14]
296 strb $s3,[$rounds,#15]
299 ldmia sp!,{r4-r12,pc}
301 ldmia sp!,{r4-r12,lr}
303 moveq pc,lr @ be binary compatible with V4, yet
304 bx lr @ interoperable with Thumb ISA:-)
306 .size AES_encrypt,.-AES_encrypt
308 .type _armv4_AES_encrypt,%function
311 str lr,[sp,#-4]! @ push lr
312 ldmia $key!,{$t1-$i1}
314 ldr $rounds,[$key,#240-16]
318 sub $rounds,$rounds,#1
323 and $i3,lr,$s0,lsr#16
326 ldr $t1,[$tbl,$i1,lsl#2] @ Te3[s0>>0]
327 and $i1,lr,$s1,lsr#16 @ i0
328 ldr $t2,[$tbl,$i2,lsl#2] @ Te2[s0>>8]
330 ldr $t3,[$tbl,$i3,lsl#2] @ Te1[s0>>16]
332 ldr $s0,[$tbl,$s0,lsl#2] @ Te0[s0>>24]
335 ldr $i1,[$tbl,$i1,lsl#2] @ Te1[s1>>16]
336 ldr $i2,[$tbl,$i2,lsl#2] @ Te3[s1>>0]
337 ldr $i3,[$tbl,$i3,lsl#2] @ Te2[s1>>8]
338 eor $s0,$s0,$i1,ror#8
339 ldr $s1,[$tbl,$s1,lsl#2] @ Te0[s1>>24]
340 and $i1,lr,$s2,lsr#8 @ i0
341 eor $t2,$t2,$i2,ror#8
342 and $i2,lr,$s2,lsr#16 @ i1
343 eor $t3,$t3,$i3,ror#8
345 ldr $i1,[$tbl,$i1,lsl#2] @ Te2[s2>>8]
346 eor $s1,$s1,$t1,ror#24
347 ldr $i2,[$tbl,$i2,lsl#2] @ Te1[s2>>16]
350 ldr $i3,[$tbl,$i3,lsl#2] @ Te3[s2>>0]
351 eor $s0,$s0,$i1,ror#16
352 ldr $s2,[$tbl,$s2,lsl#2] @ Te0[s2>>24]
354 eor $s1,$s1,$i2,ror#8
355 and $i2,lr,$s3,lsr#8 @ i1
356 eor $t3,$t3,$i3,ror#16
357 and $i3,lr,$s3,lsr#16 @ i2
358 ldr $i1,[$tbl,$i1,lsl#2] @ Te3[s3>>0]
359 eor $s2,$s2,$t2,ror#16
360 ldr $i2,[$tbl,$i2,lsl#2] @ Te2[s3>>8]
363 ldr $i3,[$tbl,$i3,lsl#2] @ Te1[s3>>16]
364 eor $s0,$s0,$i1,ror#24
366 eor $s1,$s1,$i2,ror#16
367 ldr $s3,[$tbl,$s3,lsl#2] @ Te0[s3>>24]
368 eor $s2,$s2,$i3,ror#8
370 eor $s3,$s3,$t3,ror#8
379 and $i3,lr,$s0,lsr#16
383 subs $rounds,$rounds,#1
388 ldrb $t1,[$tbl,$i1,lsl#2] @ Te4[s0>>0]
389 and $i1,lr,$s1,lsr#16 @ i0
390 ldrb $t2,[$tbl,$i2,lsl#2] @ Te4[s0>>8]
392 ldrb $t3,[$tbl,$i3,lsl#2] @ Te4[s0>>16]
394 ldrb $s0,[$tbl,$s0,lsl#2] @ Te4[s0>>24]
397 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s1>>16]
398 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s1>>0]
399 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s1>>8]
400 eor $s0,$i1,$s0,lsl#8
401 ldrb $s1,[$tbl,$s1,lsl#2] @ Te4[s1>>24]
402 and $i1,lr,$s2,lsr#8 @ i0
403 eor $t2,$i2,$t2,lsl#8
404 and $i2,lr,$s2,lsr#16 @ i1
405 eor $t3,$i3,$t3,lsl#8
407 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s2>>8]
408 eor $s1,$t1,$s1,lsl#24
409 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s2>>16]
412 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s2>>0]
413 eor $s0,$i1,$s0,lsl#8
414 ldrb $s2,[$tbl,$s2,lsl#2] @ Te4[s2>>24]
416 eor $s1,$s1,$i2,lsl#16
417 and $i2,lr,$s3,lsr#8 @ i1
418 eor $t3,$i3,$t3,lsl#8
419 and $i3,lr,$s3,lsr#16 @ i2
420 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s3>>0]
421 eor $s2,$t2,$s2,lsl#24
422 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s3>>8]
425 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s3>>16]
426 eor $s0,$i1,$s0,lsl#8
428 ldrb $s3,[$tbl,$s3,lsl#2] @ Te4[s3>>24]
429 eor $s1,$s1,$i2,lsl#8
431 eor $s2,$s2,$i3,lsl#16
433 eor $s3,$t3,$s3,lsl#24
442 ldr pc,[sp],#4 @ pop and return
443 .size _armv4_AES_encrypt,.-_armv4_AES_encrypt
445 .global AES_set_encrypt_key
446 .type AES_set_encrypt_key,%function
449 _armv4_AES_set_encrypt_key:
451 sub r3,pc,#8 @ AES_set_encrypt_key
453 adr r3,AES_set_encrypt_key
457 itt eq @ Thumb2 thing, sanity check in ARM
463 itt eq @ Thumb2 thing, sanity check in ARM
474 itt ne @ Thumb2 thing, sanity check in ARM
479 .Lok: stmdb sp!,{r4-r12,lr}
485 adr $tbl,AES_Te+1024 @ Te4
487 sub $tbl,r3,#_armv4_AES_set_encrypt_key-AES_Te-1024 @ Te4
491 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral
492 ldrb $t1,[$rounds,#2] @ manner...
493 ldrb $t2,[$rounds,#1]
494 ldrb $t3,[$rounds,#0]
495 orr $s0,$s0,$t1,lsl#8
496 ldrb $s1,[$rounds,#7]
497 orr $s0,$s0,$t2,lsl#16
498 ldrb $t1,[$rounds,#6]
499 orr $s0,$s0,$t3,lsl#24
500 ldrb $t2,[$rounds,#5]
501 ldrb $t3,[$rounds,#4]
502 orr $s1,$s1,$t1,lsl#8
503 ldrb $s2,[$rounds,#11]
504 orr $s1,$s1,$t2,lsl#16
505 ldrb $t1,[$rounds,#10]
506 orr $s1,$s1,$t3,lsl#24
507 ldrb $t2,[$rounds,#9]
508 ldrb $t3,[$rounds,#8]
509 orr $s2,$s2,$t1,lsl#8
510 ldrb $s3,[$rounds,#15]
511 orr $s2,$s2,$t2,lsl#16
512 ldrb $t1,[$rounds,#14]
513 orr $s2,$s2,$t3,lsl#24
514 ldrb $t2,[$rounds,#13]
515 ldrb $t3,[$rounds,#12]
516 orr $s3,$s3,$t1,lsl#8
518 orr $s3,$s3,$t2,lsl#16
520 orr $s3,$s3,$t3,lsl#24
527 ldr $s3,[$rounds,#12]
543 str $rounds,[$key,#240-16]
544 add $t3,$tbl,#256 @ rcon
548 and $t2,lr,$s3,lsr#24
549 and $i1,lr,$s3,lsr#16
555 orr $t2,$t2,$i1,lsl#24
557 orr $t2,$t2,$i2,lsl#16
558 ldr $t1,[$t3],#4 @ rcon[i++]
559 orr $t2,$t2,$i3,lsl#8
561 eor $s0,$s0,$t2 @ rk[4]=rk[0]^...
562 eor $s1,$s1,$s0 @ rk[5]=rk[1]^rk[4]
564 eor $s2,$s2,$s1 @ rk[6]=rk[2]^rk[5]
566 eor $s3,$s3,$s2 @ rk[7]=rk[3]^rk[6]
568 subs $rounds,$rounds,#1
576 ldrb $i2,[$rounds,#19]
577 ldrb $t1,[$rounds,#18]
578 ldrb $t2,[$rounds,#17]
579 ldrb $t3,[$rounds,#16]
580 orr $i2,$i2,$t1,lsl#8
581 ldrb $i3,[$rounds,#23]
582 orr $i2,$i2,$t2,lsl#16
583 ldrb $t1,[$rounds,#22]
584 orr $i2,$i2,$t3,lsl#24
585 ldrb $t2,[$rounds,#21]
586 ldrb $t3,[$rounds,#20]
587 orr $i3,$i3,$t1,lsl#8
588 orr $i3,$i3,$t2,lsl#16
590 orr $i3,$i3,$t3,lsl#24
593 ldr $i2,[$rounds,#16]
594 ldr $i3,[$rounds,#20]
606 str $rounds,[$key,#240-24]
607 add $t3,$tbl,#256 @ rcon
612 and $t2,lr,$i3,lsr#24
613 and $i1,lr,$i3,lsr#16
619 orr $t2,$t2,$i1,lsl#24
621 orr $t2,$t2,$i2,lsl#16
622 ldr $t1,[$t3],#4 @ rcon[i++]
623 orr $t2,$t2,$i3,lsl#8
625 eor $s0,$s0,$i3 @ rk[6]=rk[0]^...
626 eor $s1,$s1,$s0 @ rk[7]=rk[1]^rk[6]
628 eor $s2,$s2,$s1 @ rk[8]=rk[2]^rk[7]
630 eor $s3,$s3,$s2 @ rk[9]=rk[3]^rk[8]
632 subs $rounds,$rounds,#1
635 itt eq @ Thumb2 thing, sanity check in ARM
642 eor $i1,$i1,$s3 @ rk[10]=rk[4]^rk[9]
643 eor $i3,$i2,$i1 @ rk[11]=rk[5]^rk[10]
650 ldrb $i2,[$rounds,#27]
651 ldrb $t1,[$rounds,#26]
652 ldrb $t2,[$rounds,#25]
653 ldrb $t3,[$rounds,#24]
654 orr $i2,$i2,$t1,lsl#8
655 ldrb $i3,[$rounds,#31]
656 orr $i2,$i2,$t2,lsl#16
657 ldrb $t1,[$rounds,#30]
658 orr $i2,$i2,$t3,lsl#24
659 ldrb $t2,[$rounds,#29]
660 ldrb $t3,[$rounds,#28]
661 orr $i3,$i3,$t1,lsl#8
662 orr $i3,$i3,$t2,lsl#16
664 orr $i3,$i3,$t3,lsl#24
667 ldr $i2,[$rounds,#24]
668 ldr $i3,[$rounds,#28]
678 str $rounds,[$key,#240-32]
679 add $t3,$tbl,#256 @ rcon
684 and $t2,lr,$i3,lsr#24
685 and $i1,lr,$i3,lsr#16
691 orr $t2,$t2,$i1,lsl#24
693 orr $t2,$t2,$i2,lsl#16
694 ldr $t1,[$t3],#4 @ rcon[i++]
695 orr $t2,$t2,$i3,lsl#8
697 eor $s0,$s0,$i3 @ rk[8]=rk[0]^...
698 eor $s1,$s1,$s0 @ rk[9]=rk[1]^rk[8]
700 eor $s2,$s2,$s1 @ rk[10]=rk[2]^rk[9]
702 eor $s3,$s3,$s2 @ rk[11]=rk[3]^rk[10]
704 subs $rounds,$rounds,#1
707 itt eq @ Thumb2 thing, sanity check in ARM
715 and $i2,lr,$s3,lsr#16
717 and $i3,lr,$s3,lsr#24
719 orr $t2,$t2,$i1,lsl#8
721 orr $t2,$t2,$i2,lsl#16
723 orr $t2,$t2,$i3,lsl#24
727 eor $t1,$t1,$t2 @ rk[12]=rk[4]^...
729 eor $i1,$i1,$t1 @ rk[13]=rk[5]^rk[12]
731 eor $i2,$i2,$i1 @ rk[14]=rk[6]^rk[13]
733 eor $i3,$i3,$i2 @ rk[15]=rk[7]^rk[14]
740 ldmia sp!,{r4-r12,lr}
746 moveq pc,lr @ be binary compatible with V4, yet
747 bx lr @ interoperable with Thumb ISA:-)
749 .size AES_set_encrypt_key,.-AES_set_encrypt_key
751 .global AES_set_decrypt_key
752 .type AES_set_decrypt_key,%function
755 str lr,[sp,#-4]! @ push lr
756 bl _armv4_AES_set_encrypt_key
758 ldr lr,[sp],#4 @ pop lr
761 mov r0,r2 @ AES_set_encrypt_key preserves r2,
762 mov r1,r2 @ which is AES_KEY *key
763 b _armv4_AES_set_enc2dec_key
764 .size AES_set_decrypt_key,.-AES_set_decrypt_key
766 @ void AES_set_enc2dec_key(const AES_KEY *inp,AES_KEY *out)
767 .global AES_set_enc2dec_key
768 .type AES_set_enc2dec_key,%function
771 _armv4_AES_set_enc2dec_key:
772 stmdb sp!,{r4-r12,lr}
774 ldr $rounds,[r0,#240]
776 add $i2,r0,$rounds,lsl#4
778 add $tbl,r1,$rounds,lsl#4
779 str $rounds,[r1,#240]
781 .Linv: ldr $s0,[$i1],#16
792 str $s3,[$tbl,#16+12]
808 sub $key,$key,$rounds,lsl#3
814 ldr $s0,[$key,#16]! @ prefetch tp1
817 orr $mask80,$mask80,#0x8000
818 orr $mask1b,$mask1b,#0x1b00
819 orr $mask80,$mask80,$mask80,lsl#16
820 orr $mask1b,$mask1b,$mask1b,lsl#16
821 sub $rounds,$rounds,#1
823 mov $rounds,$rounds,lsl#2 @ (rounds-1)*4
825 .Lmix: and $t1,$s0,$mask80
827 sub $t1,$t1,$t1,lsr#7
829 eor $s1,$t1,$s1,lsl#1 @ tp2
833 sub $t1,$t1,$t1,lsr#7
835 eor $s2,$t1,$s2,lsl#1 @ tp4
839 sub $t1,$t1,$t1,lsr#7
841 eor $s3,$t1,$s3,lsl#1 @ tp8
844 eor $t2,$s0,$s3 @ tp9
845 eor $t1,$t1,$s3 @ tpe
846 eor $t1,$t1,$s1,ror#24
847 eor $t1,$t1,$t2,ror#24 @ ^= ROTATE(tpb=tp9^tp2,8)
848 eor $t1,$t1,$s2,ror#16
849 eor $t1,$t1,$t2,ror#16 @ ^= ROTATE(tpd=tp9^tp4,16)
850 eor $t1,$t1,$t2,ror#8 @ ^= ROTATE(tp9,24)
852 ldr $s0,[$key,#4] @ prefetch tp1
854 subs $rounds,$rounds,#1
859 ldmia sp!,{r4-r12,pc}
861 ldmia sp!,{r4-r12,lr}
863 moveq pc,lr @ be binary compatible with V4, yet
864 bx lr @ interoperable with Thumb ISA:-)
866 .size AES_set_enc2dec_key,.-AES_set_enc2dec_key
871 .word 0x51f4a750, 0x7e416553, 0x1a17a4c3, 0x3a275e96
872 .word 0x3bab6bcb, 0x1f9d45f1, 0xacfa58ab, 0x4be30393
873 .word 0x2030fa55, 0xad766df6, 0x88cc7691, 0xf5024c25
874 .word 0x4fe5d7fc, 0xc52acbd7, 0x26354480, 0xb562a38f
875 .word 0xdeb15a49, 0x25ba1b67, 0x45ea0e98, 0x5dfec0e1
876 .word 0xc32f7502, 0x814cf012, 0x8d4697a3, 0x6bd3f9c6
877 .word 0x038f5fe7, 0x15929c95, 0xbf6d7aeb, 0x955259da
878 .word 0xd4be832d, 0x587421d3, 0x49e06929, 0x8ec9c844
879 .word 0x75c2896a, 0xf48e7978, 0x99583e6b, 0x27b971dd
880 .word 0xbee14fb6, 0xf088ad17, 0xc920ac66, 0x7dce3ab4
881 .word 0x63df4a18, 0xe51a3182, 0x97513360, 0x62537f45
882 .word 0xb16477e0, 0xbb6bae84, 0xfe81a01c, 0xf9082b94
883 .word 0x70486858, 0x8f45fd19, 0x94de6c87, 0x527bf8b7
884 .word 0xab73d323, 0x724b02e2, 0xe31f8f57, 0x6655ab2a
885 .word 0xb2eb2807, 0x2fb5c203, 0x86c57b9a, 0xd33708a5
886 .word 0x302887f2, 0x23bfa5b2, 0x02036aba, 0xed16825c
887 .word 0x8acf1c2b, 0xa779b492, 0xf307f2f0, 0x4e69e2a1
888 .word 0x65daf4cd, 0x0605bed5, 0xd134621f, 0xc4a6fe8a
889 .word 0x342e539d, 0xa2f355a0, 0x058ae132, 0xa4f6eb75
890 .word 0x0b83ec39, 0x4060efaa, 0x5e719f06, 0xbd6e1051
891 .word 0x3e218af9, 0x96dd063d, 0xdd3e05ae, 0x4de6bd46
892 .word 0x91548db5, 0x71c45d05, 0x0406d46f, 0x605015ff
893 .word 0x1998fb24, 0xd6bde997, 0x894043cc, 0x67d99e77
894 .word 0xb0e842bd, 0x07898b88, 0xe7195b38, 0x79c8eedb
895 .word 0xa17c0a47, 0x7c420fe9, 0xf8841ec9, 0x00000000
896 .word 0x09808683, 0x322bed48, 0x1e1170ac, 0x6c5a724e
897 .word 0xfd0efffb, 0x0f853856, 0x3daed51e, 0x362d3927
898 .word 0x0a0fd964, 0x685ca621, 0x9b5b54d1, 0x24362e3a
899 .word 0x0c0a67b1, 0x9357e70f, 0xb4ee96d2, 0x1b9b919e
900 .word 0x80c0c54f, 0x61dc20a2, 0x5a774b69, 0x1c121a16
901 .word 0xe293ba0a, 0xc0a02ae5, 0x3c22e043, 0x121b171d
902 .word 0x0e090d0b, 0xf28bc7ad, 0x2db6a8b9, 0x141ea9c8
903 .word 0x57f11985, 0xaf75074c, 0xee99ddbb, 0xa37f60fd
904 .word 0xf701269f, 0x5c72f5bc, 0x44663bc5, 0x5bfb7e34
905 .word 0x8b432976, 0xcb23c6dc, 0xb6edfc68, 0xb8e4f163
906 .word 0xd731dcca, 0x42638510, 0x13972240, 0x84c61120
907 .word 0x854a247d, 0xd2bb3df8, 0xaef93211, 0xc729a16d
908 .word 0x1d9e2f4b, 0xdcb230f3, 0x0d8652ec, 0x77c1e3d0
909 .word 0x2bb3166c, 0xa970b999, 0x119448fa, 0x47e96422
910 .word 0xa8fc8cc4, 0xa0f03f1a, 0x567d2cd8, 0x223390ef
911 .word 0x87494ec7, 0xd938d1c1, 0x8ccaa2fe, 0x98d40b36
912 .word 0xa6f581cf, 0xa57ade28, 0xdab78e26, 0x3fadbfa4
913 .word 0x2c3a9de4, 0x5078920d, 0x6a5fcc9b, 0x547e4662
914 .word 0xf68d13c2, 0x90d8b8e8, 0x2e39f75e, 0x82c3aff5
915 .word 0x9f5d80be, 0x69d0937c, 0x6fd52da9, 0xcf2512b3
916 .word 0xc8ac993b, 0x10187da7, 0xe89c636e, 0xdb3bbb7b
917 .word 0xcd267809, 0x6e5918f4, 0xec9ab701, 0x834f9aa8
918 .word 0xe6956e65, 0xaaffe67e, 0x21bccf08, 0xef15e8e6
919 .word 0xbae79bd9, 0x4a6f36ce, 0xea9f09d4, 0x29b07cd6
920 .word 0x31a4b2af, 0x2a3f2331, 0xc6a59430, 0x35a266c0
921 .word 0x744ebc37, 0xfc82caa6, 0xe090d0b0, 0x33a7d815
922 .word 0xf104984a, 0x41ecdaf7, 0x7fcd500e, 0x1791f62f
923 .word 0x764dd68d, 0x43efb04d, 0xccaa4d54, 0xe49604df
924 .word 0x9ed1b5e3, 0x4c6a881b, 0xc12c1fb8, 0x4665517f
925 .word 0x9d5eea04, 0x018c355d, 0xfa877473, 0xfb0b412e
926 .word 0xb3671d5a, 0x92dbd252, 0xe9105633, 0x6dd64713
927 .word 0x9ad7618c, 0x37a10c7a, 0x59f8148e, 0xeb133c89
928 .word 0xcea927ee, 0xb761c935, 0xe11ce5ed, 0x7a47b13c
929 .word 0x9cd2df59, 0x55f2733f, 0x1814ce79, 0x73c737bf
930 .word 0x53f7cdea, 0x5ffdaa5b, 0xdf3d6f14, 0x7844db86
931 .word 0xcaaff381, 0xb968c43e, 0x3824342c, 0xc2a3405f
932 .word 0x161dc372, 0xbce2250c, 0x283c498b, 0xff0d9541
933 .word 0x39a80171, 0x080cb3de, 0xd8b4e49c, 0x6456c190
934 .word 0x7bcb8461, 0xd532b670, 0x486c5c74, 0xd0b85742
936 .byte 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38
937 .byte 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb
938 .byte 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87
939 .byte 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb
940 .byte 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d
941 .byte 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e
942 .byte 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2
943 .byte 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25
944 .byte 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16
945 .byte 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92
946 .byte 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda
947 .byte 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84
948 .byte 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a
949 .byte 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06
950 .byte 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02
951 .byte 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b
952 .byte 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea
953 .byte 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73
954 .byte 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85
955 .byte 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e
956 .byte 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89
957 .byte 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b
958 .byte 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20
959 .byte 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4
960 .byte 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31
961 .byte 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f
962 .byte 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d
963 .byte 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef
964 .byte 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0
965 .byte 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61
966 .byte 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26
967 .byte 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d
968 .size AES_Td,.-AES_Td
970 @ void AES_decrypt(const unsigned char *in, unsigned char *out,
971 @ const AES_KEY *key) {
973 .type AES_decrypt,%function
977 sub r3,pc,#8 @ AES_decrypt
981 stmdb sp!,{r1,r4-r12,lr}
985 sub $tbl,r3,#AES_decrypt-AES_Td @ Td
990 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral
991 ldrb $t1,[$rounds,#2] @ manner...
992 ldrb $t2,[$rounds,#1]
993 ldrb $t3,[$rounds,#0]
994 orr $s0,$s0,$t1,lsl#8
995 ldrb $s1,[$rounds,#7]
996 orr $s0,$s0,$t2,lsl#16
997 ldrb $t1,[$rounds,#6]
998 orr $s0,$s0,$t3,lsl#24
999 ldrb $t2,[$rounds,#5]
1000 ldrb $t3,[$rounds,#4]
1001 orr $s1,$s1,$t1,lsl#8
1002 ldrb $s2,[$rounds,#11]
1003 orr $s1,$s1,$t2,lsl#16
1004 ldrb $t1,[$rounds,#10]
1005 orr $s1,$s1,$t3,lsl#24
1006 ldrb $t2,[$rounds,#9]
1007 ldrb $t3,[$rounds,#8]
1008 orr $s2,$s2,$t1,lsl#8
1009 ldrb $s3,[$rounds,#15]
1010 orr $s2,$s2,$t2,lsl#16
1011 ldrb $t1,[$rounds,#14]
1012 orr $s2,$s2,$t3,lsl#24
1013 ldrb $t2,[$rounds,#13]
1014 ldrb $t3,[$rounds,#12]
1015 orr $s3,$s3,$t1,lsl#8
1016 orr $s3,$s3,$t2,lsl#16
1017 orr $s3,$s3,$t3,lsl#24
1019 ldr $s0,[$rounds,#0]
1020 ldr $s1,[$rounds,#4]
1021 ldr $s2,[$rounds,#8]
1022 ldr $s3,[$rounds,#12]
1030 bl _armv4_AES_decrypt
1032 ldr $rounds,[sp],#4 @ pop out
1040 str $s0,[$rounds,#0]
1041 str $s1,[$rounds,#4]
1042 str $s2,[$rounds,#8]
1043 str $s3,[$rounds,#12]
1045 mov $t1,$s0,lsr#24 @ write output in endian-neutral
1046 mov $t2,$s0,lsr#16 @ manner...
1048 strb $t1,[$rounds,#0]
1049 strb $t2,[$rounds,#1]
1051 strb $t3,[$rounds,#2]
1053 strb $s0,[$rounds,#3]
1055 strb $t1,[$rounds,#4]
1056 strb $t2,[$rounds,#5]
1058 strb $t3,[$rounds,#6]
1060 strb $s1,[$rounds,#7]
1062 strb $t1,[$rounds,#8]
1063 strb $t2,[$rounds,#9]
1065 strb $t3,[$rounds,#10]
1067 strb $s2,[$rounds,#11]
1069 strb $t1,[$rounds,#12]
1070 strb $t2,[$rounds,#13]
1071 strb $t3,[$rounds,#14]
1072 strb $s3,[$rounds,#15]
1075 ldmia sp!,{r4-r12,pc}
1077 ldmia sp!,{r4-r12,lr}
1079 moveq pc,lr @ be binary compatible with V4, yet
1080 bx lr @ interoperable with Thumb ISA:-)
1082 .size AES_decrypt,.-AES_decrypt
1084 .type _armv4_AES_decrypt,%function
1087 str lr,[sp,#-4]! @ push lr
1088 ldmia $key!,{$t1-$i1}
1090 ldr $rounds,[$key,#240-16]
1094 sub $rounds,$rounds,#1
1097 and $i1,lr,$s0,lsr#16
1098 and $i2,lr,$s0,lsr#8
1102 ldr $t1,[$tbl,$i1,lsl#2] @ Td1[s0>>16]
1104 ldr $t2,[$tbl,$i2,lsl#2] @ Td2[s0>>8]
1105 and $i2,lr,$s1,lsr#16
1106 ldr $t3,[$tbl,$i3,lsl#2] @ Td3[s0>>0]
1107 and $i3,lr,$s1,lsr#8
1108 ldr $s0,[$tbl,$s0,lsl#2] @ Td0[s0>>24]
1111 ldr $i1,[$tbl,$i1,lsl#2] @ Td3[s1>>0]
1112 ldr $i2,[$tbl,$i2,lsl#2] @ Td1[s1>>16]
1113 ldr $i3,[$tbl,$i3,lsl#2] @ Td2[s1>>8]
1114 eor $s0,$s0,$i1,ror#24
1115 ldr $s1,[$tbl,$s1,lsl#2] @ Td0[s1>>24]
1116 and $i1,lr,$s2,lsr#8 @ i0
1117 eor $t2,$i2,$t2,ror#8
1119 eor $t3,$i3,$t3,ror#8
1120 and $i3,lr,$s2,lsr#16
1121 ldr $i1,[$tbl,$i1,lsl#2] @ Td2[s2>>8]
1122 eor $s1,$s1,$t1,ror#8
1123 ldr $i2,[$tbl,$i2,lsl#2] @ Td3[s2>>0]
1126 ldr $i3,[$tbl,$i3,lsl#2] @ Td1[s2>>16]
1127 eor $s0,$s0,$i1,ror#16
1128 ldr $s2,[$tbl,$s2,lsl#2] @ Td0[s2>>24]
1129 and $i1,lr,$s3,lsr#16 @ i0
1130 eor $s1,$s1,$i2,ror#24
1131 and $i2,lr,$s3,lsr#8 @ i1
1132 eor $t3,$i3,$t3,ror#8
1134 ldr $i1,[$tbl,$i1,lsl#2] @ Td1[s3>>16]
1135 eor $s2,$s2,$t2,ror#8
1136 ldr $i2,[$tbl,$i2,lsl#2] @ Td2[s3>>8]
1139 ldr $i3,[$tbl,$i3,lsl#2] @ Td3[s3>>0]
1140 eor $s0,$s0,$i1,ror#8
1142 eor $s1,$s1,$i2,ror#16
1143 ldr $s3,[$tbl,$s3,lsl#2] @ Td0[s3>>24]
1144 eor $s2,$s2,$i3,ror#24
1149 eor $s3,$s3,$t3,ror#8
1151 and $i1,lr,$s0,lsr#16
1153 and $i2,lr,$s0,lsr#8
1159 subs $rounds,$rounds,#1
1164 ldr $t2,[$tbl,#0] @ prefetch Td4
1173 ldrb $s0,[$tbl,$s0] @ Td4[s0>>24]
1174 ldrb $t1,[$tbl,$i1] @ Td4[s0>>16]
1176 ldrb $t2,[$tbl,$i2] @ Td4[s0>>8]
1177 and $i2,lr,$s1,lsr#16
1178 ldrb $t3,[$tbl,$i3] @ Td4[s0>>0]
1179 and $i3,lr,$s1,lsr#8
1181 add $s1,$tbl,$s1,lsr#24
1182 ldrb $i1,[$tbl,$i1] @ Td4[s1>>0]
1183 ldrb $s1,[$s1] @ Td4[s1>>24]
1184 ldrb $i2,[$tbl,$i2] @ Td4[s1>>16]
1185 eor $s0,$i1,$s0,lsl#24
1186 ldrb $i3,[$tbl,$i3] @ Td4[s1>>8]
1187 eor $s1,$t1,$s1,lsl#8
1188 and $i1,lr,$s2,lsr#8 @ i0
1189 eor $t2,$t2,$i2,lsl#8
1191 ldrb $i1,[$tbl,$i1] @ Td4[s2>>8]
1192 eor $t3,$t3,$i3,lsl#8
1193 ldrb $i2,[$tbl,$i2] @ Td4[s2>>0]
1194 and $i3,lr,$s2,lsr#16
1196 add $s2,$tbl,$s2,lsr#24
1197 ldrb $s2,[$s2] @ Td4[s2>>24]
1198 eor $s0,$s0,$i1,lsl#8
1199 ldrb $i3,[$tbl,$i3] @ Td4[s2>>16]
1200 eor $s1,$i2,$s1,lsl#16
1201 and $i1,lr,$s3,lsr#16 @ i0
1202 eor $s2,$t2,$s2,lsl#16
1203 and $i2,lr,$s3,lsr#8 @ i1
1204 ldrb $i1,[$tbl,$i1] @ Td4[s3>>16]
1205 eor $t3,$t3,$i3,lsl#16
1206 ldrb $i2,[$tbl,$i2] @ Td4[s3>>8]
1209 add $s3,$tbl,$s3,lsr#24
1210 ldrb $i3,[$tbl,$i3] @ Td4[s3>>0]
1211 ldrb $s3,[$s3] @ Td4[s3>>24]
1212 eor $s0,$s0,$i1,lsl#16
1214 eor $s1,$s1,$i2,lsl#8
1216 eor $s2,$i3,$s2,lsl#8
1218 eor $s3,$t3,$s3,lsl#24
1227 ldr pc,[sp],#4 @ pop and return
1228 .size _armv4_AES_decrypt,.-_armv4_AES_decrypt
1229 .asciz "AES for ARMv4, CRYPTOGAMS by <appro\@openssl.org>"
1233 $code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4
1234 $code =~ s/\bret\b/bx\tlr/gm;
1239 last if (!s/^#/@/ and !/^$/);
1245 close STDOUT; # enforce flush