2 # Copyright 2007-2018 The OpenSSL Project Authors. All Rights Reserved.
4 # Licensed under the Apache License 2.0 (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__
79 #if defined(__thumb2__) && !defined(__APPLE__)
92 .word 0xc66363a5, 0xf87c7c84, 0xee777799, 0xf67b7b8d
93 .word 0xfff2f20d, 0xd66b6bbd, 0xde6f6fb1, 0x91c5c554
94 .word 0x60303050, 0x02010103, 0xce6767a9, 0x562b2b7d
95 .word 0xe7fefe19, 0xb5d7d762, 0x4dababe6, 0xec76769a
96 .word 0x8fcaca45, 0x1f82829d, 0x89c9c940, 0xfa7d7d87
97 .word 0xeffafa15, 0xb25959eb, 0x8e4747c9, 0xfbf0f00b
98 .word 0x41adadec, 0xb3d4d467, 0x5fa2a2fd, 0x45afafea
99 .word 0x239c9cbf, 0x53a4a4f7, 0xe4727296, 0x9bc0c05b
100 .word 0x75b7b7c2, 0xe1fdfd1c, 0x3d9393ae, 0x4c26266a
101 .word 0x6c36365a, 0x7e3f3f41, 0xf5f7f702, 0x83cccc4f
102 .word 0x6834345c, 0x51a5a5f4, 0xd1e5e534, 0xf9f1f108
103 .word 0xe2717193, 0xabd8d873, 0x62313153, 0x2a15153f
104 .word 0x0804040c, 0x95c7c752, 0x46232365, 0x9dc3c35e
105 .word 0x30181828, 0x379696a1, 0x0a05050f, 0x2f9a9ab5
106 .word 0x0e070709, 0x24121236, 0x1b80809b, 0xdfe2e23d
107 .word 0xcdebeb26, 0x4e272769, 0x7fb2b2cd, 0xea75759f
108 .word 0x1209091b, 0x1d83839e, 0x582c2c74, 0x341a1a2e
109 .word 0x361b1b2d, 0xdc6e6eb2, 0xb45a5aee, 0x5ba0a0fb
110 .word 0xa45252f6, 0x763b3b4d, 0xb7d6d661, 0x7db3b3ce
111 .word 0x5229297b, 0xdde3e33e, 0x5e2f2f71, 0x13848497
112 .word 0xa65353f5, 0xb9d1d168, 0x00000000, 0xc1eded2c
113 .word 0x40202060, 0xe3fcfc1f, 0x79b1b1c8, 0xb65b5bed
114 .word 0xd46a6abe, 0x8dcbcb46, 0x67bebed9, 0x7239394b
115 .word 0x944a4ade, 0x984c4cd4, 0xb05858e8, 0x85cfcf4a
116 .word 0xbbd0d06b, 0xc5efef2a, 0x4faaaae5, 0xedfbfb16
117 .word 0x864343c5, 0x9a4d4dd7, 0x66333355, 0x11858594
118 .word 0x8a4545cf, 0xe9f9f910, 0x04020206, 0xfe7f7f81
119 .word 0xa05050f0, 0x783c3c44, 0x259f9fba, 0x4ba8a8e3
120 .word 0xa25151f3, 0x5da3a3fe, 0x804040c0, 0x058f8f8a
121 .word 0x3f9292ad, 0x219d9dbc, 0x70383848, 0xf1f5f504
122 .word 0x63bcbcdf, 0x77b6b6c1, 0xafdada75, 0x42212163
123 .word 0x20101030, 0xe5ffff1a, 0xfdf3f30e, 0xbfd2d26d
124 .word 0x81cdcd4c, 0x180c0c14, 0x26131335, 0xc3ecec2f
125 .word 0xbe5f5fe1, 0x359797a2, 0x884444cc, 0x2e171739
126 .word 0x93c4c457, 0x55a7a7f2, 0xfc7e7e82, 0x7a3d3d47
127 .word 0xc86464ac, 0xba5d5de7, 0x3219192b, 0xe6737395
128 .word 0xc06060a0, 0x19818198, 0x9e4f4fd1, 0xa3dcdc7f
129 .word 0x44222266, 0x542a2a7e, 0x3b9090ab, 0x0b888883
130 .word 0x8c4646ca, 0xc7eeee29, 0x6bb8b8d3, 0x2814143c
131 .word 0xa7dede79, 0xbc5e5ee2, 0x160b0b1d, 0xaddbdb76
132 .word 0xdbe0e03b, 0x64323256, 0x743a3a4e, 0x140a0a1e
133 .word 0x924949db, 0x0c06060a, 0x4824246c, 0xb85c5ce4
134 .word 0x9fc2c25d, 0xbdd3d36e, 0x43acacef, 0xc46262a6
135 .word 0x399191a8, 0x319595a4, 0xd3e4e437, 0xf279798b
136 .word 0xd5e7e732, 0x8bc8c843, 0x6e373759, 0xda6d6db7
137 .word 0x018d8d8c, 0xb1d5d564, 0x9c4e4ed2, 0x49a9a9e0
138 .word 0xd86c6cb4, 0xac5656fa, 0xf3f4f407, 0xcfeaea25
139 .word 0xca6565af, 0xf47a7a8e, 0x47aeaee9, 0x10080818
140 .word 0x6fbabad5, 0xf0787888, 0x4a25256f, 0x5c2e2e72
141 .word 0x381c1c24, 0x57a6a6f1, 0x73b4b4c7, 0x97c6c651
142 .word 0xcbe8e823, 0xa1dddd7c, 0xe874749c, 0x3e1f1f21
143 .word 0x964b4bdd, 0x61bdbddc, 0x0d8b8b86, 0x0f8a8a85
144 .word 0xe0707090, 0x7c3e3e42, 0x71b5b5c4, 0xcc6666aa
145 .word 0x904848d8, 0x06030305, 0xf7f6f601, 0x1c0e0e12
146 .word 0xc26161a3, 0x6a35355f, 0xae5757f9, 0x69b9b9d0
147 .word 0x17868691, 0x99c1c158, 0x3a1d1d27, 0x279e9eb9
148 .word 0xd9e1e138, 0xebf8f813, 0x2b9898b3, 0x22111133
149 .word 0xd26969bb, 0xa9d9d970, 0x078e8e89, 0x339494a7
150 .word 0x2d9b9bb6, 0x3c1e1e22, 0x15878792, 0xc9e9e920
151 .word 0x87cece49, 0xaa5555ff, 0x50282878, 0xa5dfdf7a
152 .word 0x038c8c8f, 0x59a1a1f8, 0x09898980, 0x1a0d0d17
153 .word 0x65bfbfda, 0xd7e6e631, 0x844242c6, 0xd06868b8
154 .word 0x824141c3, 0x299999b0, 0x5a2d2d77, 0x1e0f0f11
155 .word 0x7bb0b0cb, 0xa85454fc, 0x6dbbbbd6, 0x2c16163a
157 .byte 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5
158 .byte 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76
159 .byte 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0
160 .byte 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0
161 .byte 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc
162 .byte 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15
163 .byte 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a
164 .byte 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75
165 .byte 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0
166 .byte 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84
167 .byte 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b
168 .byte 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf
169 .byte 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85
170 .byte 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8
171 .byte 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5
172 .byte 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2
173 .byte 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17
174 .byte 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73
175 .byte 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88
176 .byte 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb
177 .byte 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c
178 .byte 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79
179 .byte 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9
180 .byte 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08
181 .byte 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6
182 .byte 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a
183 .byte 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e
184 .byte 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e
185 .byte 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94
186 .byte 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf
187 .byte 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68
188 .byte 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
190 .word 0x01000000, 0x02000000, 0x04000000, 0x08000000
191 .word 0x10000000, 0x20000000, 0x40000000, 0x80000000
192 .word 0x1B000000, 0x36000000, 0, 0, 0, 0, 0, 0
193 .size AES_Te,.-AES_Te
195 @ void AES_encrypt(const unsigned char *in, unsigned char *out,
196 @ const AES_KEY *key) {
198 .type AES_encrypt,%function
202 sub r3,pc,#8 @ AES_encrypt
206 stmdb sp!,{r1,r4-r12,lr}
207 #if defined(__thumb2__) || defined(__APPLE__)
210 sub $tbl,r3,#AES_encrypt-AES_Te @ Te
215 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral
216 ldrb $t1,[$rounds,#2] @ manner...
217 ldrb $t2,[$rounds,#1]
218 ldrb $t3,[$rounds,#0]
219 orr $s0,$s0,$t1,lsl#8
220 ldrb $s1,[$rounds,#7]
221 orr $s0,$s0,$t2,lsl#16
222 ldrb $t1,[$rounds,#6]
223 orr $s0,$s0,$t3,lsl#24
224 ldrb $t2,[$rounds,#5]
225 ldrb $t3,[$rounds,#4]
226 orr $s1,$s1,$t1,lsl#8
227 ldrb $s2,[$rounds,#11]
228 orr $s1,$s1,$t2,lsl#16
229 ldrb $t1,[$rounds,#10]
230 orr $s1,$s1,$t3,lsl#24
231 ldrb $t2,[$rounds,#9]
232 ldrb $t3,[$rounds,#8]
233 orr $s2,$s2,$t1,lsl#8
234 ldrb $s3,[$rounds,#15]
235 orr $s2,$s2,$t2,lsl#16
236 ldrb $t1,[$rounds,#14]
237 orr $s2,$s2,$t3,lsl#24
238 ldrb $t2,[$rounds,#13]
239 ldrb $t3,[$rounds,#12]
240 orr $s3,$s3,$t1,lsl#8
241 orr $s3,$s3,$t2,lsl#16
242 orr $s3,$s3,$t3,lsl#24
247 ldr $s3,[$rounds,#12]
255 bl _armv4_AES_encrypt
257 ldr $rounds,[sp],#4 @ pop out
268 str $s3,[$rounds,#12]
270 mov $t1,$s0,lsr#24 @ write output in endian-neutral
271 mov $t2,$s0,lsr#16 @ manner...
273 strb $t1,[$rounds,#0]
274 strb $t2,[$rounds,#1]
276 strb $t3,[$rounds,#2]
278 strb $s0,[$rounds,#3]
280 strb $t1,[$rounds,#4]
281 strb $t2,[$rounds,#5]
283 strb $t3,[$rounds,#6]
285 strb $s1,[$rounds,#7]
287 strb $t1,[$rounds,#8]
288 strb $t2,[$rounds,#9]
290 strb $t3,[$rounds,#10]
292 strb $s2,[$rounds,#11]
294 strb $t1,[$rounds,#12]
295 strb $t2,[$rounds,#13]
296 strb $t3,[$rounds,#14]
297 strb $s3,[$rounds,#15]
300 ldmia sp!,{r4-r12,pc}
302 ldmia sp!,{r4-r12,lr}
304 moveq pc,lr @ be binary compatible with V4, yet
305 bx lr @ interoperable with Thumb ISA:-)
307 .size AES_encrypt,.-AES_encrypt
309 .type _armv4_AES_encrypt,%function
312 str lr,[sp,#-4]! @ push lr
313 ldmia $key!,{$t1-$i1}
315 ldr $rounds,[$key,#240-16]
319 sub $rounds,$rounds,#1
324 and $i3,lr,$s0,lsr#16
327 ldr $t1,[$tbl,$i1,lsl#2] @ Te3[s0>>0]
328 and $i1,lr,$s1,lsr#16 @ i0
329 ldr $t2,[$tbl,$i2,lsl#2] @ Te2[s0>>8]
331 ldr $t3,[$tbl,$i3,lsl#2] @ Te1[s0>>16]
333 ldr $s0,[$tbl,$s0,lsl#2] @ Te0[s0>>24]
336 ldr $i1,[$tbl,$i1,lsl#2] @ Te1[s1>>16]
337 ldr $i2,[$tbl,$i2,lsl#2] @ Te3[s1>>0]
338 ldr $i3,[$tbl,$i3,lsl#2] @ Te2[s1>>8]
339 eor $s0,$s0,$i1,ror#8
340 ldr $s1,[$tbl,$s1,lsl#2] @ Te0[s1>>24]
341 and $i1,lr,$s2,lsr#8 @ i0
342 eor $t2,$t2,$i2,ror#8
343 and $i2,lr,$s2,lsr#16 @ i1
344 eor $t3,$t3,$i3,ror#8
346 ldr $i1,[$tbl,$i1,lsl#2] @ Te2[s2>>8]
347 eor $s1,$s1,$t1,ror#24
348 ldr $i2,[$tbl,$i2,lsl#2] @ Te1[s2>>16]
351 ldr $i3,[$tbl,$i3,lsl#2] @ Te3[s2>>0]
352 eor $s0,$s0,$i1,ror#16
353 ldr $s2,[$tbl,$s2,lsl#2] @ Te0[s2>>24]
355 eor $s1,$s1,$i2,ror#8
356 and $i2,lr,$s3,lsr#8 @ i1
357 eor $t3,$t3,$i3,ror#16
358 and $i3,lr,$s3,lsr#16 @ i2
359 ldr $i1,[$tbl,$i1,lsl#2] @ Te3[s3>>0]
360 eor $s2,$s2,$t2,ror#16
361 ldr $i2,[$tbl,$i2,lsl#2] @ Te2[s3>>8]
364 ldr $i3,[$tbl,$i3,lsl#2] @ Te1[s3>>16]
365 eor $s0,$s0,$i1,ror#24
367 eor $s1,$s1,$i2,ror#16
368 ldr $s3,[$tbl,$s3,lsl#2] @ Te0[s3>>24]
369 eor $s2,$s2,$i3,ror#8
371 eor $s3,$s3,$t3,ror#8
380 and $i3,lr,$s0,lsr#16
384 subs $rounds,$rounds,#1
389 ldrb $t1,[$tbl,$i1,lsl#2] @ Te4[s0>>0]
390 and $i1,lr,$s1,lsr#16 @ i0
391 ldrb $t2,[$tbl,$i2,lsl#2] @ Te4[s0>>8]
393 ldrb $t3,[$tbl,$i3,lsl#2] @ Te4[s0>>16]
395 ldrb $s0,[$tbl,$s0,lsl#2] @ Te4[s0>>24]
398 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s1>>16]
399 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s1>>0]
400 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s1>>8]
401 eor $s0,$i1,$s0,lsl#8
402 ldrb $s1,[$tbl,$s1,lsl#2] @ Te4[s1>>24]
403 and $i1,lr,$s2,lsr#8 @ i0
404 eor $t2,$i2,$t2,lsl#8
405 and $i2,lr,$s2,lsr#16 @ i1
406 eor $t3,$i3,$t3,lsl#8
408 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s2>>8]
409 eor $s1,$t1,$s1,lsl#24
410 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s2>>16]
413 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s2>>0]
414 eor $s0,$i1,$s0,lsl#8
415 ldrb $s2,[$tbl,$s2,lsl#2] @ Te4[s2>>24]
417 eor $s1,$s1,$i2,lsl#16
418 and $i2,lr,$s3,lsr#8 @ i1
419 eor $t3,$i3,$t3,lsl#8
420 and $i3,lr,$s3,lsr#16 @ i2
421 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s3>>0]
422 eor $s2,$t2,$s2,lsl#24
423 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s3>>8]
426 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s3>>16]
427 eor $s0,$i1,$s0,lsl#8
429 ldrb $s3,[$tbl,$s3,lsl#2] @ Te4[s3>>24]
430 eor $s1,$s1,$i2,lsl#8
432 eor $s2,$s2,$i3,lsl#16
434 eor $s3,$t3,$s3,lsl#24
443 ldr pc,[sp],#4 @ pop and return
444 .size _armv4_AES_encrypt,.-_armv4_AES_encrypt
446 .global AES_set_encrypt_key
447 .type AES_set_encrypt_key,%function
450 _armv4_AES_set_encrypt_key:
452 sub r3,pc,#8 @ AES_set_encrypt_key
458 itt eq @ Thumb2 thing, sanity check in ARM
464 itt eq @ Thumb2 thing, sanity check in ARM
475 itt ne @ Thumb2 thing, sanity check in ARM
480 .Lok: stmdb sp!,{r4-r12,lr}
485 #if defined(__thumb2__) || defined(__APPLE__)
486 adr $tbl,AES_Te+1024 @ Te4
488 sub $tbl,r3,#_armv4_AES_set_encrypt_key-AES_Te-1024 @ Te4
492 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral
493 ldrb $t1,[$rounds,#2] @ manner...
494 ldrb $t2,[$rounds,#1]
495 ldrb $t3,[$rounds,#0]
496 orr $s0,$s0,$t1,lsl#8
497 ldrb $s1,[$rounds,#7]
498 orr $s0,$s0,$t2,lsl#16
499 ldrb $t1,[$rounds,#6]
500 orr $s0,$s0,$t3,lsl#24
501 ldrb $t2,[$rounds,#5]
502 ldrb $t3,[$rounds,#4]
503 orr $s1,$s1,$t1,lsl#8
504 ldrb $s2,[$rounds,#11]
505 orr $s1,$s1,$t2,lsl#16
506 ldrb $t1,[$rounds,#10]
507 orr $s1,$s1,$t3,lsl#24
508 ldrb $t2,[$rounds,#9]
509 ldrb $t3,[$rounds,#8]
510 orr $s2,$s2,$t1,lsl#8
511 ldrb $s3,[$rounds,#15]
512 orr $s2,$s2,$t2,lsl#16
513 ldrb $t1,[$rounds,#14]
514 orr $s2,$s2,$t3,lsl#24
515 ldrb $t2,[$rounds,#13]
516 ldrb $t3,[$rounds,#12]
517 orr $s3,$s3,$t1,lsl#8
519 orr $s3,$s3,$t2,lsl#16
521 orr $s3,$s3,$t3,lsl#24
528 ldr $s3,[$rounds,#12]
544 str $rounds,[$key,#240-16]
545 add $t3,$tbl,#256 @ rcon
549 and $t2,lr,$s3,lsr#24
550 and $i1,lr,$s3,lsr#16
556 orr $t2,$t2,$i1,lsl#24
558 orr $t2,$t2,$i2,lsl#16
559 ldr $t1,[$t3],#4 @ rcon[i++]
560 orr $t2,$t2,$i3,lsl#8
562 eor $s0,$s0,$t2 @ rk[4]=rk[0]^...
563 eor $s1,$s1,$s0 @ rk[5]=rk[1]^rk[4]
565 eor $s2,$s2,$s1 @ rk[6]=rk[2]^rk[5]
567 eor $s3,$s3,$s2 @ rk[7]=rk[3]^rk[6]
569 subs $rounds,$rounds,#1
577 ldrb $i2,[$rounds,#19]
578 ldrb $t1,[$rounds,#18]
579 ldrb $t2,[$rounds,#17]
580 ldrb $t3,[$rounds,#16]
581 orr $i2,$i2,$t1,lsl#8
582 ldrb $i3,[$rounds,#23]
583 orr $i2,$i2,$t2,lsl#16
584 ldrb $t1,[$rounds,#22]
585 orr $i2,$i2,$t3,lsl#24
586 ldrb $t2,[$rounds,#21]
587 ldrb $t3,[$rounds,#20]
588 orr $i3,$i3,$t1,lsl#8
589 orr $i3,$i3,$t2,lsl#16
591 orr $i3,$i3,$t3,lsl#24
594 ldr $i2,[$rounds,#16]
595 ldr $i3,[$rounds,#20]
607 str $rounds,[$key,#240-24]
608 add $t3,$tbl,#256 @ rcon
613 and $t2,lr,$i3,lsr#24
614 and $i1,lr,$i3,lsr#16
620 orr $t2,$t2,$i1,lsl#24
622 orr $t2,$t2,$i2,lsl#16
623 ldr $t1,[$t3],#4 @ rcon[i++]
624 orr $t2,$t2,$i3,lsl#8
626 eor $s0,$s0,$i3 @ rk[6]=rk[0]^...
627 eor $s1,$s1,$s0 @ rk[7]=rk[1]^rk[6]
629 eor $s2,$s2,$s1 @ rk[8]=rk[2]^rk[7]
631 eor $s3,$s3,$s2 @ rk[9]=rk[3]^rk[8]
633 subs $rounds,$rounds,#1
636 itt eq @ Thumb2 thing, sanity check in ARM
643 eor $i1,$i1,$s3 @ rk[10]=rk[4]^rk[9]
644 eor $i3,$i2,$i1 @ rk[11]=rk[5]^rk[10]
651 ldrb $i2,[$rounds,#27]
652 ldrb $t1,[$rounds,#26]
653 ldrb $t2,[$rounds,#25]
654 ldrb $t3,[$rounds,#24]
655 orr $i2,$i2,$t1,lsl#8
656 ldrb $i3,[$rounds,#31]
657 orr $i2,$i2,$t2,lsl#16
658 ldrb $t1,[$rounds,#30]
659 orr $i2,$i2,$t3,lsl#24
660 ldrb $t2,[$rounds,#29]
661 ldrb $t3,[$rounds,#28]
662 orr $i3,$i3,$t1,lsl#8
663 orr $i3,$i3,$t2,lsl#16
665 orr $i3,$i3,$t3,lsl#24
668 ldr $i2,[$rounds,#24]
669 ldr $i3,[$rounds,#28]
679 str $rounds,[$key,#240-32]
680 add $t3,$tbl,#256 @ rcon
685 and $t2,lr,$i3,lsr#24
686 and $i1,lr,$i3,lsr#16
692 orr $t2,$t2,$i1,lsl#24
694 orr $t2,$t2,$i2,lsl#16
695 ldr $t1,[$t3],#4 @ rcon[i++]
696 orr $t2,$t2,$i3,lsl#8
698 eor $s0,$s0,$i3 @ rk[8]=rk[0]^...
699 eor $s1,$s1,$s0 @ rk[9]=rk[1]^rk[8]
701 eor $s2,$s2,$s1 @ rk[10]=rk[2]^rk[9]
703 eor $s3,$s3,$s2 @ rk[11]=rk[3]^rk[10]
705 subs $rounds,$rounds,#1
708 itt eq @ Thumb2 thing, sanity check in ARM
716 and $i2,lr,$s3,lsr#16
718 and $i3,lr,$s3,lsr#24
720 orr $t2,$t2,$i1,lsl#8
722 orr $t2,$t2,$i2,lsl#16
724 orr $t2,$t2,$i3,lsl#24
728 eor $t1,$t1,$t2 @ rk[12]=rk[4]^...
730 eor $i1,$i1,$t1 @ rk[13]=rk[5]^rk[12]
732 eor $i2,$i2,$i1 @ rk[14]=rk[6]^rk[13]
734 eor $i3,$i3,$i2 @ rk[15]=rk[7]^rk[14]
741 ldmia sp!,{r4-r12,lr}
747 moveq pc,lr @ be binary compatible with V4, yet
748 bx lr @ interoperable with Thumb ISA:-)
750 .size AES_set_encrypt_key,.-AES_set_encrypt_key
752 .global AES_set_decrypt_key
753 .type AES_set_decrypt_key,%function
756 str lr,[sp,#-4]! @ push lr
757 bl _armv4_AES_set_encrypt_key
759 ldr lr,[sp],#4 @ pop lr
762 mov r0,r2 @ AES_set_encrypt_key preserves r2,
763 mov r1,r2 @ which is AES_KEY *key
764 b _armv4_AES_set_enc2dec_key
765 .size AES_set_decrypt_key,.-AES_set_decrypt_key
767 @ void AES_set_enc2dec_key(const AES_KEY *inp,AES_KEY *out)
768 .global AES_set_enc2dec_key
769 .type AES_set_enc2dec_key,%function
772 _armv4_AES_set_enc2dec_key:
773 stmdb sp!,{r4-r12,lr}
775 ldr $rounds,[r0,#240]
777 add $i2,r0,$rounds,lsl#4
779 add $tbl,r1,$rounds,lsl#4
780 str $rounds,[r1,#240]
782 .Linv: ldr $s0,[$i1],#16
793 str $s3,[$tbl,#16+12]
809 sub $key,$key,$rounds,lsl#3
815 ldr $s0,[$key,#16]! @ prefetch tp1
818 orr $mask80,$mask80,#0x8000
819 orr $mask1b,$mask1b,#0x1b00
820 orr $mask80,$mask80,$mask80,lsl#16
821 orr $mask1b,$mask1b,$mask1b,lsl#16
822 sub $rounds,$rounds,#1
824 mov $rounds,$rounds,lsl#2 @ (rounds-1)*4
826 .Lmix: and $t1,$s0,$mask80
828 sub $t1,$t1,$t1,lsr#7
830 eor $s1,$t1,$s1,lsl#1 @ tp2
834 sub $t1,$t1,$t1,lsr#7
836 eor $s2,$t1,$s2,lsl#1 @ tp4
840 sub $t1,$t1,$t1,lsr#7
842 eor $s3,$t1,$s3,lsl#1 @ tp8
845 eor $t2,$s0,$s3 @ tp9
846 eor $t1,$t1,$s3 @ tpe
847 eor $t1,$t1,$s1,ror#24
848 eor $t1,$t1,$t2,ror#24 @ ^= ROTATE(tpb=tp9^tp2,8)
849 eor $t1,$t1,$s2,ror#16
850 eor $t1,$t1,$t2,ror#16 @ ^= ROTATE(tpd=tp9^tp4,16)
851 eor $t1,$t1,$t2,ror#8 @ ^= ROTATE(tp9,24)
853 ldr $s0,[$key,#4] @ prefetch tp1
855 subs $rounds,$rounds,#1
860 ldmia sp!,{r4-r12,pc}
862 ldmia sp!,{r4-r12,lr}
864 moveq pc,lr @ be binary compatible with V4, yet
865 bx lr @ interoperable with Thumb ISA:-)
867 .size AES_set_enc2dec_key,.-AES_set_enc2dec_key
872 .word 0x51f4a750, 0x7e416553, 0x1a17a4c3, 0x3a275e96
873 .word 0x3bab6bcb, 0x1f9d45f1, 0xacfa58ab, 0x4be30393
874 .word 0x2030fa55, 0xad766df6, 0x88cc7691, 0xf5024c25
875 .word 0x4fe5d7fc, 0xc52acbd7, 0x26354480, 0xb562a38f
876 .word 0xdeb15a49, 0x25ba1b67, 0x45ea0e98, 0x5dfec0e1
877 .word 0xc32f7502, 0x814cf012, 0x8d4697a3, 0x6bd3f9c6
878 .word 0x038f5fe7, 0x15929c95, 0xbf6d7aeb, 0x955259da
879 .word 0xd4be832d, 0x587421d3, 0x49e06929, 0x8ec9c844
880 .word 0x75c2896a, 0xf48e7978, 0x99583e6b, 0x27b971dd
881 .word 0xbee14fb6, 0xf088ad17, 0xc920ac66, 0x7dce3ab4
882 .word 0x63df4a18, 0xe51a3182, 0x97513360, 0x62537f45
883 .word 0xb16477e0, 0xbb6bae84, 0xfe81a01c, 0xf9082b94
884 .word 0x70486858, 0x8f45fd19, 0x94de6c87, 0x527bf8b7
885 .word 0xab73d323, 0x724b02e2, 0xe31f8f57, 0x6655ab2a
886 .word 0xb2eb2807, 0x2fb5c203, 0x86c57b9a, 0xd33708a5
887 .word 0x302887f2, 0x23bfa5b2, 0x02036aba, 0xed16825c
888 .word 0x8acf1c2b, 0xa779b492, 0xf307f2f0, 0x4e69e2a1
889 .word 0x65daf4cd, 0x0605bed5, 0xd134621f, 0xc4a6fe8a
890 .word 0x342e539d, 0xa2f355a0, 0x058ae132, 0xa4f6eb75
891 .word 0x0b83ec39, 0x4060efaa, 0x5e719f06, 0xbd6e1051
892 .word 0x3e218af9, 0x96dd063d, 0xdd3e05ae, 0x4de6bd46
893 .word 0x91548db5, 0x71c45d05, 0x0406d46f, 0x605015ff
894 .word 0x1998fb24, 0xd6bde997, 0x894043cc, 0x67d99e77
895 .word 0xb0e842bd, 0x07898b88, 0xe7195b38, 0x79c8eedb
896 .word 0xa17c0a47, 0x7c420fe9, 0xf8841ec9, 0x00000000
897 .word 0x09808683, 0x322bed48, 0x1e1170ac, 0x6c5a724e
898 .word 0xfd0efffb, 0x0f853856, 0x3daed51e, 0x362d3927
899 .word 0x0a0fd964, 0x685ca621, 0x9b5b54d1, 0x24362e3a
900 .word 0x0c0a67b1, 0x9357e70f, 0xb4ee96d2, 0x1b9b919e
901 .word 0x80c0c54f, 0x61dc20a2, 0x5a774b69, 0x1c121a16
902 .word 0xe293ba0a, 0xc0a02ae5, 0x3c22e043, 0x121b171d
903 .word 0x0e090d0b, 0xf28bc7ad, 0x2db6a8b9, 0x141ea9c8
904 .word 0x57f11985, 0xaf75074c, 0xee99ddbb, 0xa37f60fd
905 .word 0xf701269f, 0x5c72f5bc, 0x44663bc5, 0x5bfb7e34
906 .word 0x8b432976, 0xcb23c6dc, 0xb6edfc68, 0xb8e4f163
907 .word 0xd731dcca, 0x42638510, 0x13972240, 0x84c61120
908 .word 0x854a247d, 0xd2bb3df8, 0xaef93211, 0xc729a16d
909 .word 0x1d9e2f4b, 0xdcb230f3, 0x0d8652ec, 0x77c1e3d0
910 .word 0x2bb3166c, 0xa970b999, 0x119448fa, 0x47e96422
911 .word 0xa8fc8cc4, 0xa0f03f1a, 0x567d2cd8, 0x223390ef
912 .word 0x87494ec7, 0xd938d1c1, 0x8ccaa2fe, 0x98d40b36
913 .word 0xa6f581cf, 0xa57ade28, 0xdab78e26, 0x3fadbfa4
914 .word 0x2c3a9de4, 0x5078920d, 0x6a5fcc9b, 0x547e4662
915 .word 0xf68d13c2, 0x90d8b8e8, 0x2e39f75e, 0x82c3aff5
916 .word 0x9f5d80be, 0x69d0937c, 0x6fd52da9, 0xcf2512b3
917 .word 0xc8ac993b, 0x10187da7, 0xe89c636e, 0xdb3bbb7b
918 .word 0xcd267809, 0x6e5918f4, 0xec9ab701, 0x834f9aa8
919 .word 0xe6956e65, 0xaaffe67e, 0x21bccf08, 0xef15e8e6
920 .word 0xbae79bd9, 0x4a6f36ce, 0xea9f09d4, 0x29b07cd6
921 .word 0x31a4b2af, 0x2a3f2331, 0xc6a59430, 0x35a266c0
922 .word 0x744ebc37, 0xfc82caa6, 0xe090d0b0, 0x33a7d815
923 .word 0xf104984a, 0x41ecdaf7, 0x7fcd500e, 0x1791f62f
924 .word 0x764dd68d, 0x43efb04d, 0xccaa4d54, 0xe49604df
925 .word 0x9ed1b5e3, 0x4c6a881b, 0xc12c1fb8, 0x4665517f
926 .word 0x9d5eea04, 0x018c355d, 0xfa877473, 0xfb0b412e
927 .word 0xb3671d5a, 0x92dbd252, 0xe9105633, 0x6dd64713
928 .word 0x9ad7618c, 0x37a10c7a, 0x59f8148e, 0xeb133c89
929 .word 0xcea927ee, 0xb761c935, 0xe11ce5ed, 0x7a47b13c
930 .word 0x9cd2df59, 0x55f2733f, 0x1814ce79, 0x73c737bf
931 .word 0x53f7cdea, 0x5ffdaa5b, 0xdf3d6f14, 0x7844db86
932 .word 0xcaaff381, 0xb968c43e, 0x3824342c, 0xc2a3405f
933 .word 0x161dc372, 0xbce2250c, 0x283c498b, 0xff0d9541
934 .word 0x39a80171, 0x080cb3de, 0xd8b4e49c, 0x6456c190
935 .word 0x7bcb8461, 0xd532b670, 0x486c5c74, 0xd0b85742
937 .byte 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38
938 .byte 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb
939 .byte 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87
940 .byte 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb
941 .byte 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d
942 .byte 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e
943 .byte 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2
944 .byte 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25
945 .byte 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16
946 .byte 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92
947 .byte 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda
948 .byte 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84
949 .byte 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a
950 .byte 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06
951 .byte 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02
952 .byte 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b
953 .byte 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea
954 .byte 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73
955 .byte 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85
956 .byte 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e
957 .byte 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89
958 .byte 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b
959 .byte 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20
960 .byte 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4
961 .byte 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31
962 .byte 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f
963 .byte 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d
964 .byte 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef
965 .byte 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0
966 .byte 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61
967 .byte 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26
968 .byte 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d
969 .size AES_Td,.-AES_Td
971 @ void AES_decrypt(const unsigned char *in, unsigned char *out,
972 @ const AES_KEY *key) {
974 .type AES_decrypt,%function
978 sub r3,pc,#8 @ AES_decrypt
982 stmdb sp!,{r1,r4-r12,lr}
983 #if defined(__thumb2__) || defined(__APPLE__)
986 sub $tbl,r3,#AES_decrypt-AES_Td @ Td
991 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral
992 ldrb $t1,[$rounds,#2] @ manner...
993 ldrb $t2,[$rounds,#1]
994 ldrb $t3,[$rounds,#0]
995 orr $s0,$s0,$t1,lsl#8
996 ldrb $s1,[$rounds,#7]
997 orr $s0,$s0,$t2,lsl#16
998 ldrb $t1,[$rounds,#6]
999 orr $s0,$s0,$t3,lsl#24
1000 ldrb $t2,[$rounds,#5]
1001 ldrb $t3,[$rounds,#4]
1002 orr $s1,$s1,$t1,lsl#8
1003 ldrb $s2,[$rounds,#11]
1004 orr $s1,$s1,$t2,lsl#16
1005 ldrb $t1,[$rounds,#10]
1006 orr $s1,$s1,$t3,lsl#24
1007 ldrb $t2,[$rounds,#9]
1008 ldrb $t3,[$rounds,#8]
1009 orr $s2,$s2,$t1,lsl#8
1010 ldrb $s3,[$rounds,#15]
1011 orr $s2,$s2,$t2,lsl#16
1012 ldrb $t1,[$rounds,#14]
1013 orr $s2,$s2,$t3,lsl#24
1014 ldrb $t2,[$rounds,#13]
1015 ldrb $t3,[$rounds,#12]
1016 orr $s3,$s3,$t1,lsl#8
1017 orr $s3,$s3,$t2,lsl#16
1018 orr $s3,$s3,$t3,lsl#24
1020 ldr $s0,[$rounds,#0]
1021 ldr $s1,[$rounds,#4]
1022 ldr $s2,[$rounds,#8]
1023 ldr $s3,[$rounds,#12]
1031 bl _armv4_AES_decrypt
1033 ldr $rounds,[sp],#4 @ pop out
1041 str $s0,[$rounds,#0]
1042 str $s1,[$rounds,#4]
1043 str $s2,[$rounds,#8]
1044 str $s3,[$rounds,#12]
1046 mov $t1,$s0,lsr#24 @ write output in endian-neutral
1047 mov $t2,$s0,lsr#16 @ manner...
1049 strb $t1,[$rounds,#0]
1050 strb $t2,[$rounds,#1]
1052 strb $t3,[$rounds,#2]
1054 strb $s0,[$rounds,#3]
1056 strb $t1,[$rounds,#4]
1057 strb $t2,[$rounds,#5]
1059 strb $t3,[$rounds,#6]
1061 strb $s1,[$rounds,#7]
1063 strb $t1,[$rounds,#8]
1064 strb $t2,[$rounds,#9]
1066 strb $t3,[$rounds,#10]
1068 strb $s2,[$rounds,#11]
1070 strb $t1,[$rounds,#12]
1071 strb $t2,[$rounds,#13]
1072 strb $t3,[$rounds,#14]
1073 strb $s3,[$rounds,#15]
1076 ldmia sp!,{r4-r12,pc}
1078 ldmia sp!,{r4-r12,lr}
1080 moveq pc,lr @ be binary compatible with V4, yet
1081 bx lr @ interoperable with Thumb ISA:-)
1083 .size AES_decrypt,.-AES_decrypt
1085 .type _armv4_AES_decrypt,%function
1088 str lr,[sp,#-4]! @ push lr
1089 ldmia $key!,{$t1-$i1}
1091 ldr $rounds,[$key,#240-16]
1095 sub $rounds,$rounds,#1
1098 and $i1,lr,$s0,lsr#16
1099 and $i2,lr,$s0,lsr#8
1103 ldr $t1,[$tbl,$i1,lsl#2] @ Td1[s0>>16]
1105 ldr $t2,[$tbl,$i2,lsl#2] @ Td2[s0>>8]
1106 and $i2,lr,$s1,lsr#16
1107 ldr $t3,[$tbl,$i3,lsl#2] @ Td3[s0>>0]
1108 and $i3,lr,$s1,lsr#8
1109 ldr $s0,[$tbl,$s0,lsl#2] @ Td0[s0>>24]
1112 ldr $i1,[$tbl,$i1,lsl#2] @ Td3[s1>>0]
1113 ldr $i2,[$tbl,$i2,lsl#2] @ Td1[s1>>16]
1114 ldr $i3,[$tbl,$i3,lsl#2] @ Td2[s1>>8]
1115 eor $s0,$s0,$i1,ror#24
1116 ldr $s1,[$tbl,$s1,lsl#2] @ Td0[s1>>24]
1117 and $i1,lr,$s2,lsr#8 @ i0
1118 eor $t2,$i2,$t2,ror#8
1120 eor $t3,$i3,$t3,ror#8
1121 and $i3,lr,$s2,lsr#16
1122 ldr $i1,[$tbl,$i1,lsl#2] @ Td2[s2>>8]
1123 eor $s1,$s1,$t1,ror#8
1124 ldr $i2,[$tbl,$i2,lsl#2] @ Td3[s2>>0]
1127 ldr $i3,[$tbl,$i3,lsl#2] @ Td1[s2>>16]
1128 eor $s0,$s0,$i1,ror#16
1129 ldr $s2,[$tbl,$s2,lsl#2] @ Td0[s2>>24]
1130 and $i1,lr,$s3,lsr#16 @ i0
1131 eor $s1,$s1,$i2,ror#24
1132 and $i2,lr,$s3,lsr#8 @ i1
1133 eor $t3,$i3,$t3,ror#8
1135 ldr $i1,[$tbl,$i1,lsl#2] @ Td1[s3>>16]
1136 eor $s2,$s2,$t2,ror#8
1137 ldr $i2,[$tbl,$i2,lsl#2] @ Td2[s3>>8]
1140 ldr $i3,[$tbl,$i3,lsl#2] @ Td3[s3>>0]
1141 eor $s0,$s0,$i1,ror#8
1143 eor $s1,$s1,$i2,ror#16
1144 ldr $s3,[$tbl,$s3,lsl#2] @ Td0[s3>>24]
1145 eor $s2,$s2,$i3,ror#24
1150 eor $s3,$s3,$t3,ror#8
1152 and $i1,lr,$s0,lsr#16
1154 and $i2,lr,$s0,lsr#8
1160 subs $rounds,$rounds,#1
1165 ldr $t2,[$tbl,#0] @ prefetch Td4
1174 ldrb $s0,[$tbl,$s0] @ Td4[s0>>24]
1175 ldrb $t1,[$tbl,$i1] @ Td4[s0>>16]
1177 ldrb $t2,[$tbl,$i2] @ Td4[s0>>8]
1178 and $i2,lr,$s1,lsr#16
1179 ldrb $t3,[$tbl,$i3] @ Td4[s0>>0]
1180 and $i3,lr,$s1,lsr#8
1182 add $s1,$tbl,$s1,lsr#24
1183 ldrb $i1,[$tbl,$i1] @ Td4[s1>>0]
1184 ldrb $s1,[$s1] @ Td4[s1>>24]
1185 ldrb $i2,[$tbl,$i2] @ Td4[s1>>16]
1186 eor $s0,$i1,$s0,lsl#24
1187 ldrb $i3,[$tbl,$i3] @ Td4[s1>>8]
1188 eor $s1,$t1,$s1,lsl#8
1189 and $i1,lr,$s2,lsr#8 @ i0
1190 eor $t2,$t2,$i2,lsl#8
1192 ldrb $i1,[$tbl,$i1] @ Td4[s2>>8]
1193 eor $t3,$t3,$i3,lsl#8
1194 ldrb $i2,[$tbl,$i2] @ Td4[s2>>0]
1195 and $i3,lr,$s2,lsr#16
1197 add $s2,$tbl,$s2,lsr#24
1198 ldrb $s2,[$s2] @ Td4[s2>>24]
1199 eor $s0,$s0,$i1,lsl#8
1200 ldrb $i3,[$tbl,$i3] @ Td4[s2>>16]
1201 eor $s1,$i2,$s1,lsl#16
1202 and $i1,lr,$s3,lsr#16 @ i0
1203 eor $s2,$t2,$s2,lsl#16
1204 and $i2,lr,$s3,lsr#8 @ i1
1205 ldrb $i1,[$tbl,$i1] @ Td4[s3>>16]
1206 eor $t3,$t3,$i3,lsl#16
1207 ldrb $i2,[$tbl,$i2] @ Td4[s3>>8]
1210 add $s3,$tbl,$s3,lsr#24
1211 ldrb $i3,[$tbl,$i3] @ Td4[s3>>0]
1212 ldrb $s3,[$s3] @ Td4[s3>>24]
1213 eor $s0,$s0,$i1,lsl#16
1215 eor $s1,$s1,$i2,lsl#8
1217 eor $s2,$i3,$s2,lsl#8
1219 eor $s3,$t3,$s3,lsl#24
1228 ldr pc,[sp],#4 @ pop and return
1229 .size _armv4_AES_decrypt,.-_armv4_AES_decrypt
1230 .asciz "AES for ARMv4, CRYPTOGAMS by <appro\@openssl.org>"
1234 $code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4
1235 $code =~ s/\bret\b/bx\tlr/gm;
1240 last if (!s/^#/@/ and !/^$/);
1246 close STDOUT; # enforce flush