3 # ====================================================================
4 # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
5 # project. The module is, however, dual licensed under OpenSSL and
6 # CRYPTOGAMS licenses depending on where you obtain it. For further
7 # details see http://www.openssl.org/~appro/cryptogams/.
8 # ====================================================================
14 # Code uses single 1K S-box and is >2 times faster than code generated
15 # by gcc-3.4.1. This is thanks to unique feature of ARMv4 ISA, which
16 # allows to merge logical or arithmetic operation with shift or rotate
17 # in one instruction and emit combined result every cycle. The module
18 # is endian-neutral. The performance is ~42 cycles/byte for 128-bit
19 # key [on single-issue Xscale PXA250 core].
23 # AES_set_[en|de]crypt_key is added.
27 # Rescheduling for dual-issue pipeline resulted in 12% improvement on
28 # Cortex A8 core and ~25 cycles per byte processed with 128-bit key.
32 # Profiler-assisted and platform-specific optimization resulted in 16%
33 # improvement on Cortex A8 core and ~21.5 cycles per byte.
35 while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
36 open STDOUT,">$output";
55 # include "arm_arch.h"
57 # define __ARM_ARCH__ __LINUX_ARM_ARCH__
75 .word 0xc66363a5, 0xf87c7c84, 0xee777799, 0xf67b7b8d
76 .word 0xfff2f20d, 0xd66b6bbd, 0xde6f6fb1, 0x91c5c554
77 .word 0x60303050, 0x02010103, 0xce6767a9, 0x562b2b7d
78 .word 0xe7fefe19, 0xb5d7d762, 0x4dababe6, 0xec76769a
79 .word 0x8fcaca45, 0x1f82829d, 0x89c9c940, 0xfa7d7d87
80 .word 0xeffafa15, 0xb25959eb, 0x8e4747c9, 0xfbf0f00b
81 .word 0x41adadec, 0xb3d4d467, 0x5fa2a2fd, 0x45afafea
82 .word 0x239c9cbf, 0x53a4a4f7, 0xe4727296, 0x9bc0c05b
83 .word 0x75b7b7c2, 0xe1fdfd1c, 0x3d9393ae, 0x4c26266a
84 .word 0x6c36365a, 0x7e3f3f41, 0xf5f7f702, 0x83cccc4f
85 .word 0x6834345c, 0x51a5a5f4, 0xd1e5e534, 0xf9f1f108
86 .word 0xe2717193, 0xabd8d873, 0x62313153, 0x2a15153f
87 .word 0x0804040c, 0x95c7c752, 0x46232365, 0x9dc3c35e
88 .word 0x30181828, 0x379696a1, 0x0a05050f, 0x2f9a9ab5
89 .word 0x0e070709, 0x24121236, 0x1b80809b, 0xdfe2e23d
90 .word 0xcdebeb26, 0x4e272769, 0x7fb2b2cd, 0xea75759f
91 .word 0x1209091b, 0x1d83839e, 0x582c2c74, 0x341a1a2e
92 .word 0x361b1b2d, 0xdc6e6eb2, 0xb45a5aee, 0x5ba0a0fb
93 .word 0xa45252f6, 0x763b3b4d, 0xb7d6d661, 0x7db3b3ce
94 .word 0x5229297b, 0xdde3e33e, 0x5e2f2f71, 0x13848497
95 .word 0xa65353f5, 0xb9d1d168, 0x00000000, 0xc1eded2c
96 .word 0x40202060, 0xe3fcfc1f, 0x79b1b1c8, 0xb65b5bed
97 .word 0xd46a6abe, 0x8dcbcb46, 0x67bebed9, 0x7239394b
98 .word 0x944a4ade, 0x984c4cd4, 0xb05858e8, 0x85cfcf4a
99 .word 0xbbd0d06b, 0xc5efef2a, 0x4faaaae5, 0xedfbfb16
100 .word 0x864343c5, 0x9a4d4dd7, 0x66333355, 0x11858594
101 .word 0x8a4545cf, 0xe9f9f910, 0x04020206, 0xfe7f7f81
102 .word 0xa05050f0, 0x783c3c44, 0x259f9fba, 0x4ba8a8e3
103 .word 0xa25151f3, 0x5da3a3fe, 0x804040c0, 0x058f8f8a
104 .word 0x3f9292ad, 0x219d9dbc, 0x70383848, 0xf1f5f504
105 .word 0x63bcbcdf, 0x77b6b6c1, 0xafdada75, 0x42212163
106 .word 0x20101030, 0xe5ffff1a, 0xfdf3f30e, 0xbfd2d26d
107 .word 0x81cdcd4c, 0x180c0c14, 0x26131335, 0xc3ecec2f
108 .word 0xbe5f5fe1, 0x359797a2, 0x884444cc, 0x2e171739
109 .word 0x93c4c457, 0x55a7a7f2, 0xfc7e7e82, 0x7a3d3d47
110 .word 0xc86464ac, 0xba5d5de7, 0x3219192b, 0xe6737395
111 .word 0xc06060a0, 0x19818198, 0x9e4f4fd1, 0xa3dcdc7f
112 .word 0x44222266, 0x542a2a7e, 0x3b9090ab, 0x0b888883
113 .word 0x8c4646ca, 0xc7eeee29, 0x6bb8b8d3, 0x2814143c
114 .word 0xa7dede79, 0xbc5e5ee2, 0x160b0b1d, 0xaddbdb76
115 .word 0xdbe0e03b, 0x64323256, 0x743a3a4e, 0x140a0a1e
116 .word 0x924949db, 0x0c06060a, 0x4824246c, 0xb85c5ce4
117 .word 0x9fc2c25d, 0xbdd3d36e, 0x43acacef, 0xc46262a6
118 .word 0x399191a8, 0x319595a4, 0xd3e4e437, 0xf279798b
119 .word 0xd5e7e732, 0x8bc8c843, 0x6e373759, 0xda6d6db7
120 .word 0x018d8d8c, 0xb1d5d564, 0x9c4e4ed2, 0x49a9a9e0
121 .word 0xd86c6cb4, 0xac5656fa, 0xf3f4f407, 0xcfeaea25
122 .word 0xca6565af, 0xf47a7a8e, 0x47aeaee9, 0x10080818
123 .word 0x6fbabad5, 0xf0787888, 0x4a25256f, 0x5c2e2e72
124 .word 0x381c1c24, 0x57a6a6f1, 0x73b4b4c7, 0x97c6c651
125 .word 0xcbe8e823, 0xa1dddd7c, 0xe874749c, 0x3e1f1f21
126 .word 0x964b4bdd, 0x61bdbddc, 0x0d8b8b86, 0x0f8a8a85
127 .word 0xe0707090, 0x7c3e3e42, 0x71b5b5c4, 0xcc6666aa
128 .word 0x904848d8, 0x06030305, 0xf7f6f601, 0x1c0e0e12
129 .word 0xc26161a3, 0x6a35355f, 0xae5757f9, 0x69b9b9d0
130 .word 0x17868691, 0x99c1c158, 0x3a1d1d27, 0x279e9eb9
131 .word 0xd9e1e138, 0xebf8f813, 0x2b9898b3, 0x22111133
132 .word 0xd26969bb, 0xa9d9d970, 0x078e8e89, 0x339494a7
133 .word 0x2d9b9bb6, 0x3c1e1e22, 0x15878792, 0xc9e9e920
134 .word 0x87cece49, 0xaa5555ff, 0x50282878, 0xa5dfdf7a
135 .word 0x038c8c8f, 0x59a1a1f8, 0x09898980, 0x1a0d0d17
136 .word 0x65bfbfda, 0xd7e6e631, 0x844242c6, 0xd06868b8
137 .word 0x824141c3, 0x299999b0, 0x5a2d2d77, 0x1e0f0f11
138 .word 0x7bb0b0cb, 0xa85454fc, 0x6dbbbbd6, 0x2c16163a
140 .byte 0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5
141 .byte 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76
142 .byte 0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0
143 .byte 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0
144 .byte 0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc
145 .byte 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15
146 .byte 0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a
147 .byte 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75
148 .byte 0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0
149 .byte 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84
150 .byte 0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b
151 .byte 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf
152 .byte 0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85
153 .byte 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8
154 .byte 0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5
155 .byte 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2
156 .byte 0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17
157 .byte 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73
158 .byte 0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88
159 .byte 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb
160 .byte 0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c
161 .byte 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79
162 .byte 0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9
163 .byte 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08
164 .byte 0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6
165 .byte 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a
166 .byte 0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e
167 .byte 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e
168 .byte 0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94
169 .byte 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf
170 .byte 0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68
171 .byte 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
173 .word 0x01000000, 0x02000000, 0x04000000, 0x08000000
174 .word 0x10000000, 0x20000000, 0x40000000, 0x80000000
175 .word 0x1B000000, 0x36000000, 0, 0, 0, 0, 0, 0
176 .size AES_Te,.-AES_Te
178 @ void AES_encrypt(const unsigned char *in, unsigned char *out,
179 @ const AES_KEY *key) {
181 .type AES_encrypt,%function
185 sub r3,pc,#8 @ AES_encrypt
189 stmdb sp!,{r1,r4-r12,lr}
192 sub $tbl,r3,#AES_encrypt-AES_Te @ Te
194 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral
195 ldrb $t1,[$rounds,#2] @ manner...
196 ldrb $t2,[$rounds,#1]
197 ldrb $t3,[$rounds,#0]
198 orr $s0,$s0,$t1,lsl#8
199 ldrb $s1,[$rounds,#7]
200 orr $s0,$s0,$t2,lsl#16
201 ldrb $t1,[$rounds,#6]
202 orr $s0,$s0,$t3,lsl#24
203 ldrb $t2,[$rounds,#5]
204 ldrb $t3,[$rounds,#4]
205 orr $s1,$s1,$t1,lsl#8
206 ldrb $s2,[$rounds,#11]
207 orr $s1,$s1,$t2,lsl#16
208 ldrb $t1,[$rounds,#10]
209 orr $s1,$s1,$t3,lsl#24
210 ldrb $t2,[$rounds,#9]
211 ldrb $t3,[$rounds,#8]
212 orr $s2,$s2,$t1,lsl#8
213 ldrb $s3,[$rounds,#15]
214 orr $s2,$s2,$t2,lsl#16
215 ldrb $t1,[$rounds,#14]
216 orr $s2,$s2,$t3,lsl#24
217 ldrb $t2,[$rounds,#13]
218 ldrb $t3,[$rounds,#12]
219 orr $s3,$s3,$t1,lsl#8
220 orr $s3,$s3,$t2,lsl#16
221 orr $s3,$s3,$t3,lsl#24
226 ldr $s3,[$rounds,#12]
234 bl _armv4_AES_encrypt
236 ldr $rounds,[sp],#4 @ pop out
247 str $s3,[$rounds,#12]
249 mov $t1,$s0,lsr#24 @ write output in endian-neutral
250 mov $t2,$s0,lsr#16 @ manner...
252 strb $t1,[$rounds,#0]
253 strb $t2,[$rounds,#1]
255 strb $t3,[$rounds,#2]
257 strb $s0,[$rounds,#3]
259 strb $t1,[$rounds,#4]
260 strb $t2,[$rounds,#5]
262 strb $t3,[$rounds,#6]
264 strb $s1,[$rounds,#7]
266 strb $t1,[$rounds,#8]
267 strb $t2,[$rounds,#9]
269 strb $t3,[$rounds,#10]
271 strb $s2,[$rounds,#11]
273 strb $t1,[$rounds,#12]
274 strb $t2,[$rounds,#13]
275 strb $t3,[$rounds,#14]
276 strb $s3,[$rounds,#15]
279 ldmia sp!,{r4-r12,pc}
281 ldmia sp!,{r4-r12,lr}
283 moveq pc,lr @ be binary compatible with V4, yet
284 bx lr @ interoperable with Thumb ISA:-)
286 .size AES_encrypt,.-AES_encrypt
288 .type _armv4_AES_encrypt,%function
291 str lr,[sp,#-4]! @ push lr
292 ldmia $key!,{$t1-$i1}
294 ldr $rounds,[$key,#240-16]
298 sub $rounds,$rounds,#1
303 and $i3,lr,$s0,lsr#16
306 ldr $t1,[$tbl,$i1,lsl#2] @ Te3[s0>>0]
307 and $i1,lr,$s1,lsr#16 @ i0
308 ldr $t2,[$tbl,$i2,lsl#2] @ Te2[s0>>8]
310 ldr $t3,[$tbl,$i3,lsl#2] @ Te1[s0>>16]
312 ldr $s0,[$tbl,$s0,lsl#2] @ Te0[s0>>24]
315 ldr $i1,[$tbl,$i1,lsl#2] @ Te1[s1>>16]
316 ldr $i2,[$tbl,$i2,lsl#2] @ Te3[s1>>0]
317 ldr $i3,[$tbl,$i3,lsl#2] @ Te2[s1>>8]
318 eor $s0,$s0,$i1,ror#8
319 ldr $s1,[$tbl,$s1,lsl#2] @ Te0[s1>>24]
320 and $i1,lr,$s2,lsr#8 @ i0
321 eor $t2,$t2,$i2,ror#8
322 and $i2,lr,$s2,lsr#16 @ i1
323 eor $t3,$t3,$i3,ror#8
325 ldr $i1,[$tbl,$i1,lsl#2] @ Te2[s2>>8]
326 eor $s1,$s1,$t1,ror#24
327 ldr $i2,[$tbl,$i2,lsl#2] @ Te1[s2>>16]
330 ldr $i3,[$tbl,$i3,lsl#2] @ Te3[s2>>0]
331 eor $s0,$s0,$i1,ror#16
332 ldr $s2,[$tbl,$s2,lsl#2] @ Te0[s2>>24]
334 eor $s1,$s1,$i2,ror#8
335 and $i2,lr,$s3,lsr#8 @ i1
336 eor $t3,$t3,$i3,ror#16
337 and $i3,lr,$s3,lsr#16 @ i2
338 ldr $i1,[$tbl,$i1,lsl#2] @ Te3[s3>>0]
339 eor $s2,$s2,$t2,ror#16
340 ldr $i2,[$tbl,$i2,lsl#2] @ Te2[s3>>8]
343 ldr $i3,[$tbl,$i3,lsl#2] @ Te1[s3>>16]
344 eor $s0,$s0,$i1,ror#24
346 eor $s1,$s1,$i2,ror#16
347 ldr $s3,[$tbl,$s3,lsl#2] @ Te0[s3>>24]
348 eor $s2,$s2,$i3,ror#8
350 eor $s3,$s3,$t3,ror#8
359 and $i3,lr,$s0,lsr#16
363 subs $rounds,$rounds,#1
368 ldrb $t1,[$tbl,$i1,lsl#2] @ Te4[s0>>0]
369 and $i1,lr,$s1,lsr#16 @ i0
370 ldrb $t2,[$tbl,$i2,lsl#2] @ Te4[s0>>8]
372 ldrb $t3,[$tbl,$i3,lsl#2] @ Te4[s0>>16]
374 ldrb $s0,[$tbl,$s0,lsl#2] @ Te4[s0>>24]
377 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s1>>16]
378 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s1>>0]
379 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s1>>8]
380 eor $s0,$i1,$s0,lsl#8
381 ldrb $s1,[$tbl,$s1,lsl#2] @ Te4[s1>>24]
382 and $i1,lr,$s2,lsr#8 @ i0
383 eor $t2,$i2,$t2,lsl#8
384 and $i2,lr,$s2,lsr#16 @ i1
385 eor $t3,$i3,$t3,lsl#8
387 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s2>>8]
388 eor $s1,$t1,$s1,lsl#24
389 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s2>>16]
392 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s2>>0]
393 eor $s0,$i1,$s0,lsl#8
394 ldrb $s2,[$tbl,$s2,lsl#2] @ Te4[s2>>24]
396 eor $s1,$s1,$i2,lsl#16
397 and $i2,lr,$s3,lsr#8 @ i1
398 eor $t3,$i3,$t3,lsl#8
399 and $i3,lr,$s3,lsr#16 @ i2
400 ldrb $i1,[$tbl,$i1,lsl#2] @ Te4[s3>>0]
401 eor $s2,$t2,$s2,lsl#24
402 ldrb $i2,[$tbl,$i2,lsl#2] @ Te4[s3>>8]
405 ldrb $i3,[$tbl,$i3,lsl#2] @ Te4[s3>>16]
406 eor $s0,$i1,$s0,lsl#8
408 ldrb $s3,[$tbl,$s3,lsl#2] @ Te4[s3>>24]
409 eor $s1,$s1,$i2,lsl#8
411 eor $s2,$s2,$i3,lsl#16
413 eor $s3,$t3,$s3,lsl#24
422 ldr pc,[sp],#4 @ pop and return
423 .size _armv4_AES_encrypt,.-_armv4_AES_encrypt
425 .global private_AES_set_encrypt_key
426 .type private_AES_set_encrypt_key,%function
428 private_AES_set_encrypt_key:
429 _armv4_AES_set_encrypt_key:
431 sub r3,pc,#8 @ AES_set_encrypt_key
433 adr r3,private_AES_set_encrypt_key
437 itt eq @ Thumb2 thing, sanity check in ARM
443 itt eq @ Thumb2 thing, sanity check in ARM
454 itt ne @ Thumb2 thing, sanity check in ARM
459 .Lok: stmdb sp!,{r4-r12,lr}
460 sub $tbl,r3,#_armv4_AES_set_encrypt_key-AES_Te-1024 @ Te4
467 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral
468 ldrb $t1,[$rounds,#2] @ manner...
469 ldrb $t2,[$rounds,#1]
470 ldrb $t3,[$rounds,#0]
471 orr $s0,$s0,$t1,lsl#8
472 ldrb $s1,[$rounds,#7]
473 orr $s0,$s0,$t2,lsl#16
474 ldrb $t1,[$rounds,#6]
475 orr $s0,$s0,$t3,lsl#24
476 ldrb $t2,[$rounds,#5]
477 ldrb $t3,[$rounds,#4]
478 orr $s1,$s1,$t1,lsl#8
479 ldrb $s2,[$rounds,#11]
480 orr $s1,$s1,$t2,lsl#16
481 ldrb $t1,[$rounds,#10]
482 orr $s1,$s1,$t3,lsl#24
483 ldrb $t2,[$rounds,#9]
484 ldrb $t3,[$rounds,#8]
485 orr $s2,$s2,$t1,lsl#8
486 ldrb $s3,[$rounds,#15]
487 orr $s2,$s2,$t2,lsl#16
488 ldrb $t1,[$rounds,#14]
489 orr $s2,$s2,$t3,lsl#24
490 ldrb $t2,[$rounds,#13]
491 ldrb $t3,[$rounds,#12]
492 orr $s3,$s3,$t1,lsl#8
494 orr $s3,$s3,$t2,lsl#16
496 orr $s3,$s3,$t3,lsl#24
503 ldr $s3,[$rounds,#12]
519 str $rounds,[$key,#240-16]
520 add $t3,$tbl,#256 @ rcon
524 and $t2,lr,$s3,lsr#24
525 and $i1,lr,$s3,lsr#16
531 orr $t2,$t2,$i1,lsl#24
533 orr $t2,$t2,$i2,lsl#16
534 ldr $t1,[$t3],#4 @ rcon[i++]
535 orr $t2,$t2,$i3,lsl#8
537 eor $s0,$s0,$t2 @ rk[4]=rk[0]^...
538 eor $s1,$s1,$s0 @ rk[5]=rk[1]^rk[4]
540 eor $s2,$s2,$s1 @ rk[6]=rk[2]^rk[5]
542 eor $s3,$s3,$s2 @ rk[7]=rk[3]^rk[6]
544 subs $rounds,$rounds,#1
552 ldrb $i2,[$rounds,#19]
553 ldrb $t1,[$rounds,#18]
554 ldrb $t2,[$rounds,#17]
555 ldrb $t3,[$rounds,#16]
556 orr $i2,$i2,$t1,lsl#8
557 ldrb $i3,[$rounds,#23]
558 orr $i2,$i2,$t2,lsl#16
559 ldrb $t1,[$rounds,#22]
560 orr $i2,$i2,$t3,lsl#24
561 ldrb $t2,[$rounds,#21]
562 ldrb $t3,[$rounds,#20]
563 orr $i3,$i3,$t1,lsl#8
564 orr $i3,$i3,$t2,lsl#16
566 orr $i3,$i3,$t3,lsl#24
569 ldr $i2,[$rounds,#16]
570 ldr $i3,[$rounds,#20]
582 str $rounds,[$key,#240-24]
583 add $t3,$tbl,#256 @ rcon
588 and $t2,lr,$i3,lsr#24
589 and $i1,lr,$i3,lsr#16
595 orr $t2,$t2,$i1,lsl#24
597 orr $t2,$t2,$i2,lsl#16
598 ldr $t1,[$t3],#4 @ rcon[i++]
599 orr $t2,$t2,$i3,lsl#8
601 eor $s0,$s0,$i3 @ rk[6]=rk[0]^...
602 eor $s1,$s1,$s0 @ rk[7]=rk[1]^rk[6]
604 eor $s2,$s2,$s1 @ rk[8]=rk[2]^rk[7]
606 eor $s3,$s3,$s2 @ rk[9]=rk[3]^rk[8]
608 subs $rounds,$rounds,#1
611 itt eq @ Thumb2 thing, sanity check in ARM
618 eor $i1,$i1,$s3 @ rk[10]=rk[4]^rk[9]
619 eor $i3,$i2,$i1 @ rk[11]=rk[5]^rk[10]
626 ldrb $i2,[$rounds,#27]
627 ldrb $t1,[$rounds,#26]
628 ldrb $t2,[$rounds,#25]
629 ldrb $t3,[$rounds,#24]
630 orr $i2,$i2,$t1,lsl#8
631 ldrb $i3,[$rounds,#31]
632 orr $i2,$i2,$t2,lsl#16
633 ldrb $t1,[$rounds,#30]
634 orr $i2,$i2,$t3,lsl#24
635 ldrb $t2,[$rounds,#29]
636 ldrb $t3,[$rounds,#28]
637 orr $i3,$i3,$t1,lsl#8
638 orr $i3,$i3,$t2,lsl#16
640 orr $i3,$i3,$t3,lsl#24
643 ldr $i2,[$rounds,#24]
644 ldr $i3,[$rounds,#28]
654 str $rounds,[$key,#240-32]
655 add $t3,$tbl,#256 @ rcon
660 and $t2,lr,$i3,lsr#24
661 and $i1,lr,$i3,lsr#16
667 orr $t2,$t2,$i1,lsl#24
669 orr $t2,$t2,$i2,lsl#16
670 ldr $t1,[$t3],#4 @ rcon[i++]
671 orr $t2,$t2,$i3,lsl#8
673 eor $s0,$s0,$i3 @ rk[8]=rk[0]^...
674 eor $s1,$s1,$s0 @ rk[9]=rk[1]^rk[8]
676 eor $s2,$s2,$s1 @ rk[10]=rk[2]^rk[9]
678 eor $s3,$s3,$s2 @ rk[11]=rk[3]^rk[10]
680 subs $rounds,$rounds,#1
683 itt eq @ Thumb2 thing, sanity check in ARM
691 and $i2,lr,$s3,lsr#16
693 and $i3,lr,$s3,lsr#24
695 orr $t2,$t2,$i1,lsl#8
697 orr $t2,$t2,$i2,lsl#16
699 orr $t2,$t2,$i3,lsl#24
703 eor $t1,$t1,$t2 @ rk[12]=rk[4]^...
705 eor $i1,$i1,$t1 @ rk[13]=rk[5]^rk[12]
707 eor $i2,$i2,$i1 @ rk[14]=rk[6]^rk[13]
709 eor $i3,$i3,$i2 @ rk[15]=rk[7]^rk[14]
716 ldmia sp!,{r4-r12,lr}
722 moveq pc,lr @ be binary compatible with V4, yet
723 bx lr @ interoperable with Thumb ISA:-)
725 .size private_AES_set_encrypt_key,.-private_AES_set_encrypt_key
727 .global private_AES_set_decrypt_key
728 .type private_AES_set_decrypt_key,%function
730 private_AES_set_decrypt_key:
731 str lr,[sp,#-4]! @ push lr
732 bl _armv4_AES_set_encrypt_key
734 ldr lr,[sp],#4 @ pop lr
737 mov r0,r2 @ AES_set_encrypt_key preserves r2,
738 mov r1,r2 @ which is AES_KEY *key
739 b _armv4_AES_set_enc2dec_key
740 .size private_AES_set_decrypt_key,.-private_AES_set_decrypt_key
742 @ void AES_set_enc2dec_key(const AES_KEY *inp,AES_KEY *out)
743 .global AES_set_enc2dec_key
744 .type AES_set_enc2dec_key,%function
747 _armv4_AES_set_enc2dec_key:
748 stmdb sp!,{r4-r12,lr}
750 ldr $rounds,[r0,#240]
752 add $i2,r0,$rounds,lsl#4
754 add $tbl,r1,$rounds,lsl#4
755 str $rounds,[r1,#240]
757 .Linv: ldr $s0,[$i1],#16
768 str $s3,[$tbl,#16+12]
784 sub $key,$key,$rounds,lsl#3
790 ldr $s0,[$key,#16]! @ prefetch tp1
793 orr $mask80,$mask80,#0x8000
794 orr $mask1b,$mask1b,#0x1b00
795 orr $mask80,$mask80,$mask80,lsl#16
796 orr $mask1b,$mask1b,$mask1b,lsl#16
797 sub $rounds,$rounds,#1
799 mov $rounds,$rounds,lsl#2 @ (rounds-1)*4
801 .Lmix: and $t1,$s0,$mask80
803 sub $t1,$t1,$t1,lsr#7
805 eor $s1,$t1,$s1,lsl#1 @ tp2
809 sub $t1,$t1,$t1,lsr#7
811 eor $s2,$t1,$s2,lsl#1 @ tp4
815 sub $t1,$t1,$t1,lsr#7
817 eor $s3,$t1,$s3,lsl#1 @ tp8
820 eor $t2,$s0,$s3 @ tp9
821 eor $t1,$t1,$s3 @ tpe
822 eor $t1,$t1,$s1,ror#24
823 eor $t1,$t1,$t2,ror#24 @ ^= ROTATE(tpb=tp9^tp2,8)
824 eor $t1,$t1,$s2,ror#16
825 eor $t1,$t1,$t2,ror#16 @ ^= ROTATE(tpd=tp9^tp4,16)
826 eor $t1,$t1,$t2,ror#8 @ ^= ROTATE(tp9,24)
828 ldr $s0,[$key,#4] @ prefetch tp1
830 subs $rounds,$rounds,#1
835 ldmia sp!,{r4-r12,pc}
837 ldmia sp!,{r4-r12,lr}
839 moveq pc,lr @ be binary compatible with V4, yet
840 bx lr @ interoperable with Thumb ISA:-)
842 .size AES_set_enc2dec_key,.-AES_set_enc2dec_key
847 .word 0x51f4a750, 0x7e416553, 0x1a17a4c3, 0x3a275e96
848 .word 0x3bab6bcb, 0x1f9d45f1, 0xacfa58ab, 0x4be30393
849 .word 0x2030fa55, 0xad766df6, 0x88cc7691, 0xf5024c25
850 .word 0x4fe5d7fc, 0xc52acbd7, 0x26354480, 0xb562a38f
851 .word 0xdeb15a49, 0x25ba1b67, 0x45ea0e98, 0x5dfec0e1
852 .word 0xc32f7502, 0x814cf012, 0x8d4697a3, 0x6bd3f9c6
853 .word 0x038f5fe7, 0x15929c95, 0xbf6d7aeb, 0x955259da
854 .word 0xd4be832d, 0x587421d3, 0x49e06929, 0x8ec9c844
855 .word 0x75c2896a, 0xf48e7978, 0x99583e6b, 0x27b971dd
856 .word 0xbee14fb6, 0xf088ad17, 0xc920ac66, 0x7dce3ab4
857 .word 0x63df4a18, 0xe51a3182, 0x97513360, 0x62537f45
858 .word 0xb16477e0, 0xbb6bae84, 0xfe81a01c, 0xf9082b94
859 .word 0x70486858, 0x8f45fd19, 0x94de6c87, 0x527bf8b7
860 .word 0xab73d323, 0x724b02e2, 0xe31f8f57, 0x6655ab2a
861 .word 0xb2eb2807, 0x2fb5c203, 0x86c57b9a, 0xd33708a5
862 .word 0x302887f2, 0x23bfa5b2, 0x02036aba, 0xed16825c
863 .word 0x8acf1c2b, 0xa779b492, 0xf307f2f0, 0x4e69e2a1
864 .word 0x65daf4cd, 0x0605bed5, 0xd134621f, 0xc4a6fe8a
865 .word 0x342e539d, 0xa2f355a0, 0x058ae132, 0xa4f6eb75
866 .word 0x0b83ec39, 0x4060efaa, 0x5e719f06, 0xbd6e1051
867 .word 0x3e218af9, 0x96dd063d, 0xdd3e05ae, 0x4de6bd46
868 .word 0x91548db5, 0x71c45d05, 0x0406d46f, 0x605015ff
869 .word 0x1998fb24, 0xd6bde997, 0x894043cc, 0x67d99e77
870 .word 0xb0e842bd, 0x07898b88, 0xe7195b38, 0x79c8eedb
871 .word 0xa17c0a47, 0x7c420fe9, 0xf8841ec9, 0x00000000
872 .word 0x09808683, 0x322bed48, 0x1e1170ac, 0x6c5a724e
873 .word 0xfd0efffb, 0x0f853856, 0x3daed51e, 0x362d3927
874 .word 0x0a0fd964, 0x685ca621, 0x9b5b54d1, 0x24362e3a
875 .word 0x0c0a67b1, 0x9357e70f, 0xb4ee96d2, 0x1b9b919e
876 .word 0x80c0c54f, 0x61dc20a2, 0x5a774b69, 0x1c121a16
877 .word 0xe293ba0a, 0xc0a02ae5, 0x3c22e043, 0x121b171d
878 .word 0x0e090d0b, 0xf28bc7ad, 0x2db6a8b9, 0x141ea9c8
879 .word 0x57f11985, 0xaf75074c, 0xee99ddbb, 0xa37f60fd
880 .word 0xf701269f, 0x5c72f5bc, 0x44663bc5, 0x5bfb7e34
881 .word 0x8b432976, 0xcb23c6dc, 0xb6edfc68, 0xb8e4f163
882 .word 0xd731dcca, 0x42638510, 0x13972240, 0x84c61120
883 .word 0x854a247d, 0xd2bb3df8, 0xaef93211, 0xc729a16d
884 .word 0x1d9e2f4b, 0xdcb230f3, 0x0d8652ec, 0x77c1e3d0
885 .word 0x2bb3166c, 0xa970b999, 0x119448fa, 0x47e96422
886 .word 0xa8fc8cc4, 0xa0f03f1a, 0x567d2cd8, 0x223390ef
887 .word 0x87494ec7, 0xd938d1c1, 0x8ccaa2fe, 0x98d40b36
888 .word 0xa6f581cf, 0xa57ade28, 0xdab78e26, 0x3fadbfa4
889 .word 0x2c3a9de4, 0x5078920d, 0x6a5fcc9b, 0x547e4662
890 .word 0xf68d13c2, 0x90d8b8e8, 0x2e39f75e, 0x82c3aff5
891 .word 0x9f5d80be, 0x69d0937c, 0x6fd52da9, 0xcf2512b3
892 .word 0xc8ac993b, 0x10187da7, 0xe89c636e, 0xdb3bbb7b
893 .word 0xcd267809, 0x6e5918f4, 0xec9ab701, 0x834f9aa8
894 .word 0xe6956e65, 0xaaffe67e, 0x21bccf08, 0xef15e8e6
895 .word 0xbae79bd9, 0x4a6f36ce, 0xea9f09d4, 0x29b07cd6
896 .word 0x31a4b2af, 0x2a3f2331, 0xc6a59430, 0x35a266c0
897 .word 0x744ebc37, 0xfc82caa6, 0xe090d0b0, 0x33a7d815
898 .word 0xf104984a, 0x41ecdaf7, 0x7fcd500e, 0x1791f62f
899 .word 0x764dd68d, 0x43efb04d, 0xccaa4d54, 0xe49604df
900 .word 0x9ed1b5e3, 0x4c6a881b, 0xc12c1fb8, 0x4665517f
901 .word 0x9d5eea04, 0x018c355d, 0xfa877473, 0xfb0b412e
902 .word 0xb3671d5a, 0x92dbd252, 0xe9105633, 0x6dd64713
903 .word 0x9ad7618c, 0x37a10c7a, 0x59f8148e, 0xeb133c89
904 .word 0xcea927ee, 0xb761c935, 0xe11ce5ed, 0x7a47b13c
905 .word 0x9cd2df59, 0x55f2733f, 0x1814ce79, 0x73c737bf
906 .word 0x53f7cdea, 0x5ffdaa5b, 0xdf3d6f14, 0x7844db86
907 .word 0xcaaff381, 0xb968c43e, 0x3824342c, 0xc2a3405f
908 .word 0x161dc372, 0xbce2250c, 0x283c498b, 0xff0d9541
909 .word 0x39a80171, 0x080cb3de, 0xd8b4e49c, 0x6456c190
910 .word 0x7bcb8461, 0xd532b670, 0x486c5c74, 0xd0b85742
912 .byte 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38
913 .byte 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb
914 .byte 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87
915 .byte 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb
916 .byte 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d
917 .byte 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e
918 .byte 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2
919 .byte 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25
920 .byte 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16
921 .byte 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92
922 .byte 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda
923 .byte 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84
924 .byte 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a
925 .byte 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06
926 .byte 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02
927 .byte 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b
928 .byte 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea
929 .byte 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73
930 .byte 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85
931 .byte 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e
932 .byte 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89
933 .byte 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b
934 .byte 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20
935 .byte 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4
936 .byte 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31
937 .byte 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f
938 .byte 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d
939 .byte 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef
940 .byte 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0
941 .byte 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61
942 .byte 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26
943 .byte 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d
944 .size AES_Td,.-AES_Td
946 @ void AES_decrypt(const unsigned char *in, unsigned char *out,
947 @ const AES_KEY *key) {
949 .type AES_decrypt,%function
953 sub r3,pc,#8 @ AES_decrypt
957 stmdb sp!,{r1,r4-r12,lr}
960 sub $tbl,r3,#AES_decrypt-AES_Td @ Td
962 ldrb $s0,[$rounds,#3] @ load input data in endian-neutral
963 ldrb $t1,[$rounds,#2] @ manner...
964 ldrb $t2,[$rounds,#1]
965 ldrb $t3,[$rounds,#0]
966 orr $s0,$s0,$t1,lsl#8
967 ldrb $s1,[$rounds,#7]
968 orr $s0,$s0,$t2,lsl#16
969 ldrb $t1,[$rounds,#6]
970 orr $s0,$s0,$t3,lsl#24
971 ldrb $t2,[$rounds,#5]
972 ldrb $t3,[$rounds,#4]
973 orr $s1,$s1,$t1,lsl#8
974 ldrb $s2,[$rounds,#11]
975 orr $s1,$s1,$t2,lsl#16
976 ldrb $t1,[$rounds,#10]
977 orr $s1,$s1,$t3,lsl#24
978 ldrb $t2,[$rounds,#9]
979 ldrb $t3,[$rounds,#8]
980 orr $s2,$s2,$t1,lsl#8
981 ldrb $s3,[$rounds,#15]
982 orr $s2,$s2,$t2,lsl#16
983 ldrb $t1,[$rounds,#14]
984 orr $s2,$s2,$t3,lsl#24
985 ldrb $t2,[$rounds,#13]
986 ldrb $t3,[$rounds,#12]
987 orr $s3,$s3,$t1,lsl#8
988 orr $s3,$s3,$t2,lsl#16
989 orr $s3,$s3,$t3,lsl#24
994 ldr $s3,[$rounds,#12]
1002 bl _armv4_AES_decrypt
1004 ldr $rounds,[sp],#4 @ pop out
1012 str $s0,[$rounds,#0]
1013 str $s1,[$rounds,#4]
1014 str $s2,[$rounds,#8]
1015 str $s3,[$rounds,#12]
1017 mov $t1,$s0,lsr#24 @ write output in endian-neutral
1018 mov $t2,$s0,lsr#16 @ manner...
1020 strb $t1,[$rounds,#0]
1021 strb $t2,[$rounds,#1]
1023 strb $t3,[$rounds,#2]
1025 strb $s0,[$rounds,#3]
1027 strb $t1,[$rounds,#4]
1028 strb $t2,[$rounds,#5]
1030 strb $t3,[$rounds,#6]
1032 strb $s1,[$rounds,#7]
1034 strb $t1,[$rounds,#8]
1035 strb $t2,[$rounds,#9]
1037 strb $t3,[$rounds,#10]
1039 strb $s2,[$rounds,#11]
1041 strb $t1,[$rounds,#12]
1042 strb $t2,[$rounds,#13]
1043 strb $t3,[$rounds,#14]
1044 strb $s3,[$rounds,#15]
1047 ldmia sp!,{r4-r12,pc}
1049 ldmia sp!,{r4-r12,lr}
1051 moveq pc,lr @ be binary compatible with V4, yet
1052 bx lr @ interoperable with Thumb ISA:-)
1054 .size AES_decrypt,.-AES_decrypt
1056 .type _armv4_AES_decrypt,%function
1059 str lr,[sp,#-4]! @ push lr
1060 ldmia $key!,{$t1-$i1}
1062 ldr $rounds,[$key,#240-16]
1066 sub $rounds,$rounds,#1
1069 and $i1,lr,$s0,lsr#16
1070 and $i2,lr,$s0,lsr#8
1074 ldr $t1,[$tbl,$i1,lsl#2] @ Td1[s0>>16]
1076 ldr $t2,[$tbl,$i2,lsl#2] @ Td2[s0>>8]
1077 and $i2,lr,$s1,lsr#16
1078 ldr $t3,[$tbl,$i3,lsl#2] @ Td3[s0>>0]
1079 and $i3,lr,$s1,lsr#8
1080 ldr $s0,[$tbl,$s0,lsl#2] @ Td0[s0>>24]
1083 ldr $i1,[$tbl,$i1,lsl#2] @ Td3[s1>>0]
1084 ldr $i2,[$tbl,$i2,lsl#2] @ Td1[s1>>16]
1085 ldr $i3,[$tbl,$i3,lsl#2] @ Td2[s1>>8]
1086 eor $s0,$s0,$i1,ror#24
1087 ldr $s1,[$tbl,$s1,lsl#2] @ Td0[s1>>24]
1088 and $i1,lr,$s2,lsr#8 @ i0
1089 eor $t2,$i2,$t2,ror#8
1091 eor $t3,$i3,$t3,ror#8
1092 and $i3,lr,$s2,lsr#16
1093 ldr $i1,[$tbl,$i1,lsl#2] @ Td2[s2>>8]
1094 eor $s1,$s1,$t1,ror#8
1095 ldr $i2,[$tbl,$i2,lsl#2] @ Td3[s2>>0]
1098 ldr $i3,[$tbl,$i3,lsl#2] @ Td1[s2>>16]
1099 eor $s0,$s0,$i1,ror#16
1100 ldr $s2,[$tbl,$s2,lsl#2] @ Td0[s2>>24]
1101 and $i1,lr,$s3,lsr#16 @ i0
1102 eor $s1,$s1,$i2,ror#24
1103 and $i2,lr,$s3,lsr#8 @ i1
1104 eor $t3,$i3,$t3,ror#8
1106 ldr $i1,[$tbl,$i1,lsl#2] @ Td1[s3>>16]
1107 eor $s2,$s2,$t2,ror#8
1108 ldr $i2,[$tbl,$i2,lsl#2] @ Td2[s3>>8]
1111 ldr $i3,[$tbl,$i3,lsl#2] @ Td3[s3>>0]
1112 eor $s0,$s0,$i1,ror#8
1114 eor $s1,$s1,$i2,ror#16
1115 ldr $s3,[$tbl,$s3,lsl#2] @ Td0[s3>>24]
1116 eor $s2,$s2,$i3,ror#24
1121 eor $s3,$s3,$t3,ror#8
1123 and $i1,lr,$s0,lsr#16
1125 and $i2,lr,$s0,lsr#8
1131 subs $rounds,$rounds,#1
1136 ldr $t2,[$tbl,#0] @ prefetch Td4
1145 ldrb $s0,[$tbl,$s0] @ Td4[s0>>24]
1146 ldrb $t1,[$tbl,$i1] @ Td4[s0>>16]
1148 ldrb $t2,[$tbl,$i2] @ Td4[s0>>8]
1149 and $i2,lr,$s1,lsr#16
1150 ldrb $t3,[$tbl,$i3] @ Td4[s0>>0]
1151 and $i3,lr,$s1,lsr#8
1153 add $s1,$tbl,$s1,lsr#24
1154 ldrb $i1,[$tbl,$i1] @ Td4[s1>>0]
1155 ldrb $s1,[$s1] @ Td4[s1>>24]
1156 ldrb $i2,[$tbl,$i2] @ Td4[s1>>16]
1157 eor $s0,$i1,$s0,lsl#24
1158 ldrb $i3,[$tbl,$i3] @ Td4[s1>>8]
1159 eor $s1,$t1,$s1,lsl#8
1160 and $i1,lr,$s2,lsr#8 @ i0
1161 eor $t2,$t2,$i2,lsl#8
1163 ldrb $i1,[$tbl,$i1] @ Td4[s2>>8]
1164 eor $t3,$t3,$i3,lsl#8
1165 ldrb $i2,[$tbl,$i2] @ Td4[s2>>0]
1166 and $i3,lr,$s2,lsr#16
1168 add $s2,$tbl,$s2,lsr#24
1169 ldrb $s2,[$s2] @ Td4[s2>>24]
1170 eor $s0,$s0,$i1,lsl#8
1171 ldrb $i3,[$tbl,$i3] @ Td4[s2>>16]
1172 eor $s1,$i2,$s1,lsl#16
1173 and $i1,lr,$s3,lsr#16 @ i0
1174 eor $s2,$t2,$s2,lsl#16
1175 and $i2,lr,$s3,lsr#8 @ i1
1176 ldrb $i1,[$tbl,$i1] @ Td4[s3>>16]
1177 eor $t3,$t3,$i3,lsl#16
1178 ldrb $i2,[$tbl,$i2] @ Td4[s3>>8]
1181 add $s3,$tbl,$s3,lsr#24
1182 ldrb $i3,[$tbl,$i3] @ Td4[s3>>0]
1183 ldrb $s3,[$s3] @ Td4[s3>>24]
1184 eor $s0,$s0,$i1,lsl#16
1186 eor $s1,$s1,$i2,lsl#8
1188 eor $s2,$i3,$s2,lsl#8
1190 eor $s3,$t3,$s3,lsl#24
1199 ldr pc,[sp],#4 @ pop and return
1200 .size _armv4_AES_decrypt,.-_armv4_AES_decrypt
1201 .asciz "AES for ARMv4, CRYPTOGAMS by <appro\@openssl.org>"
1205 $code =~ s/\bbx\s+lr\b/.word\t0xe12fff1e/gm; # make it possible to compile with -march=armv4
1206 $code =~ s/\bret\b/bx\tlr/gm;
1211 last if (!s/^#/@/ and !/^$/);
1217 close STDOUT; # enforce flush