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
|
#! /usr/bin/env perl
# Copyright 2012-2020 The OpenSSL Project Authors. All Rights Reserved.
#
# Licensed under the OpenSSL license (the "License"). You may not use
# this file except in compliance with the License. You can obtain a copy
# in the file LICENSE in the source distribution or at
# https://www.openssl.org/source/license.html
#
# ====================================================================
# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
#
# SHA256 for C64x+.
#
# January 2012
#
# Performance is just below 10 cycles per processed byte, which is
# almost 40% faster than compiler-generated code. Unroll is unlikely
# to give more than ~8% improvement...
#
# !!! Note that this module uses AMR, which means that all interrupt
# service routines are expected to preserve it and for own well-being
# zero it upon entry.
while (($output=shift) && ($output!~/\w[\w\-]*\.\w+$/)) {}
open STDOUT,">$output";
($CTXA,$INP,$NUM) = ("A4","B4","A6"); # arguments
$K256="A3";
($A,$Actx,$B,$Bctx,$C,$Cctx,$D,$Dctx,$T2,$S0,$s1,$t0a,$t1a,$t2a,$X9,$X14)
=map("A$_",(16..31));
($E,$Ectx,$F,$Fctx,$G,$Gctx,$H,$Hctx,$T1,$S1,$s0,$t0e,$t1e,$t2e,$X1,$X15)
=map("B$_",(16..31));
($Xia,$Xib)=("A5","B5"); # circular/ring buffer
$CTXB=$t2e;
($Xn,$X0,$K)=("B7","B8","B9");
($Maj,$Ch)=($T2,"B6");
$code.=<<___;
.text
.if .ASSEMBLER_VERSION<7000000
.asg 0,__TI_EABI__
.endif
.if __TI_EABI__
.nocmp
.asg sha256_block_data_order,_sha256_block_data_order
.endif
.asg B3,RA
.asg A15,FP
.asg B15,SP
.if .BIG_ENDIAN
.asg SWAP2,MV
.asg SWAP4,MV
.endif
.global _sha256_block_data_order
_sha256_block_data_order:
__sha256_block:
.asmfunc stack_usage(64)
MV $NUM,A0 ; reassign $NUM
|| MVK -64,B0
[!A0] BNOP RA ; if ($NUM==0) return;
|| [A0] STW FP,*SP--[16] ; save frame pointer and alloca(64)
|| [A0] MV SP,FP
[A0] ADDKPC __sha256_block,B2
|| [A0] AND B0,SP,SP ; align stack at 64 bytes
.if __TI_EABI__
[A0] MVK 0x00404,B1
|| [A0] MVKL \$PCR_OFFSET(K256,__sha256_block),$K256
[A0] MVKH 0x50000,B1
|| [A0] MVKH \$PCR_OFFSET(K256,__sha256_block),$K256
.else
[A0] MVK 0x00404,B1
|| [A0] MVKL (K256-__sha256_block),$K256
[A0] MVKH 0x50000,B1
|| [A0] MVKH (K256-__sha256_block),$K256
.endif
[A0] MVC B1,AMR ; setup circular addressing
|| [A0] MV SP,$Xia
[A0] MV SP,$Xib
|| [A0] ADD B2,$K256,$K256
|| [A0] MV $CTXA,$CTXB
|| [A0] SUBAW SP,2,SP ; reserve two words above buffer
LDW *${CTXA}[0],$A ; load ctx
|| LDW *${CTXB}[4],$E
LDW *${CTXA}[1],$B
|| LDW *${CTXB}[5],$F
LDW *${CTXA}[2],$C
|| LDW *${CTXB}[6],$G
LDW *${CTXA}[3],$D
|| LDW *${CTXB}[7],$H
LDNW *$INP++,$Xn ; pre-fetch input
LDW *$K256++,$K ; pre-fetch K256[0]
MVK 14,B0 ; loop counters
MVK 47,B1
|| ADDAW $Xia,9,$Xia
outerloop?:
SUB A0,1,A0
|| MV $A,$Actx
|| MV $E,$Ectx
|| MVD $B,$Bctx
|| MVD $F,$Fctx
MV $C,$Cctx
|| MV $G,$Gctx
|| MVD $D,$Dctx
|| MVD $H,$Hctx
|| SWAP4 $Xn,$X0
SPLOOPD 8 ; BODY_00_14
|| MVC B0,ILC
|| SWAP2 $X0,$X0
LDNW *$INP++,$Xn
|| ROTL $A,30,$S0
|| OR $A,$B,$Maj
|| AND $A,$B,$t2a
|| ROTL $E,26,$S1
|| AND $F,$E,$Ch
|| ANDN $G,$E,$t2e
ROTL $A,19,$t0a
|| AND $C,$Maj,$Maj
|| ROTL $E,21,$t0e
|| XOR $t2e,$Ch,$Ch ; Ch(e,f,g) = (e&f)^(~e&g)
ROTL $A,10,$t1a
|| OR $t2a,$Maj,$Maj ; Maj(a,b,c) = ((a|b)&c)|(a&b)
|| ROTL $E,7,$t1e
|| ADD $K,$H,$T1 ; T1 = h + K256[i]
ADD $X0,$T1,$T1 ; T1 += X[i];
|| STW $X0,*$Xib++
|| XOR $t0a,$S0,$S0
|| XOR $t0e,$S1,$S1
XOR $t1a,$S0,$S0 ; Sigma0(a)
|| XOR $t1e,$S1,$S1 ; Sigma1(e)
|| LDW *$K256++,$K ; pre-fetch K256[i+1]
|| ADD $Ch,$T1,$T1 ; T1 += Ch(e,f,g)
ADD $S1,$T1,$T1 ; T1 += Sigma1(e)
|| ADD $S0,$Maj,$T2 ; T2 = Sigma0(a) + Maj(a,b,c)
|| ROTL $G,0,$H ; h = g
|| MV $F,$G ; g = f
|| MV $X0,$X14
|| SWAP4 $Xn,$X0
SWAP2 $X0,$X0
|| MV $E,$F ; f = e
|| ADD $D,$T1,$E ; e = d + T1
|| MV $C,$D ; d = c
MV $B,$C ; c = b
|| MV $A,$B ; b = a
|| ADD $T1,$T2,$A ; a = T1 + T2
SPKERNEL
ROTL $A,30,$S0 ; BODY_15
|| OR $A,$B,$Maj
|| AND $A,$B,$t2a
|| ROTL $E,26,$S1
|| AND $F,$E,$Ch
|| ANDN $G,$E,$t2e
|| LDW *${Xib}[1],$Xn ; modulo-scheduled
ROTL $A,19,$t0a
|| AND $C,$Maj,$Maj
|| ROTL $E,21,$t0e
|| XOR $t2e,$Ch,$Ch ; Ch(e,f,g) = (e&f)^(~e&g)
|| LDW *${Xib}[2],$X1 ; modulo-scheduled
ROTL $A,10,$t1a
|| OR $t2a,$Maj,$Maj ; Maj(a,b,c) = ((a|b)&c)|(a&b)
|| ROTL $E,7,$t1e
|| ADD $K,$H,$T1 ; T1 = h + K256[i]
ADD $X0,$T1,$T1 ; T1 += X[i];
|| STW $X0,*$Xib++
|| XOR $t0a,$S0,$S0
|| XOR $t0e,$S1,$S1
XOR $t1a,$S0,$S0 ; Sigma0(a)
|| XOR $t1e,$S1,$S1 ; Sigma1(e)
|| LDW *$K256++,$K ; pre-fetch K256[i+1]
|| ADD $Ch,$T1,$T1 ; T1 += Ch(e,f,g)
ADD $S1,$T1,$T1 ; T1 += Sigma1(e)
|| ADD $S0,$Maj,$T2 ; T2 = Sigma0(a) + Maj(a,b,c)
|| ROTL $G,0,$H ; h = g
|| MV $F,$G ; g = f
|| MV $X0,$X15
MV $E,$F ; f = e
|| ADD $D,$T1,$E ; e = d + T1
|| MV $C,$D ; d = c
|| MV $Xn,$X0 ; modulo-scheduled
|| LDW *$Xia,$X9 ; modulo-scheduled
|| ROTL $X1,25,$t0e ; modulo-scheduled
|| ROTL $X14,15,$t0a ; modulo-scheduled
SHRU $X1,3,$s0 ; modulo-scheduled
|| SHRU $X14,10,$s1 ; modulo-scheduled
|| ROTL $B,0,$C ; c = b
|| MV $A,$B ; b = a
|| ADD $T1,$T2,$A ; a = T1 + T2
SPLOOPD 10 ; BODY_16_63
|| MVC B1,ILC
|| ROTL $X1,14,$t1e ; modulo-scheduled
|| ROTL $X14,13,$t1a ; modulo-scheduled
XOR $t0e,$s0,$s0
|| XOR $t0a,$s1,$s1
|| MV $X15,$X14
|| MV $X1,$Xn
XOR $t1e,$s0,$s0 ; sigma0(X[i+1])
|| XOR $t1a,$s1,$s1 ; sigma1(X[i+14])
|| LDW *${Xib}[2],$X1 ; module-scheduled
ROTL $A,30,$S0
|| OR $A,$B,$Maj
|| AND $A,$B,$t2a
|| ROTL $E,26,$S1
|| AND $F,$E,$Ch
|| ANDN $G,$E,$t2e
|| ADD $X9,$X0,$X0 ; X[i] += X[i+9]
ROTL $A,19,$t0a
|| AND $C,$Maj,$Maj
|| ROTL $E,21,$t0e
|| XOR $t2e,$Ch,$Ch ; Ch(e,f,g) = (e&f)^(~e&g)
|| ADD $s0,$X0,$X0 ; X[i] += sigma1(X[i+1])
ROTL $A,10,$t1a
|| OR $t2a,$Maj,$Maj ; Maj(a,b,c) = ((a|b)&c)|(a&b)
|| ROTL $E,7,$t1e
|| ADD $H,$K,$T1 ; T1 = h + K256[i]
|| ADD $s1,$X0,$X0 ; X[i] += sigma1(X[i+14])
XOR $t0a,$S0,$S0
|| XOR $t0e,$S1,$S1
|| ADD $X0,$T1,$T1 ; T1 += X[i]
|| STW $X0,*$Xib++
XOR $t1a,$S0,$S0 ; Sigma0(a)
|| XOR $t1e,$S1,$S1 ; Sigma1(e)
|| ADD $Ch,$T1,$T1 ; T1 += Ch(e,f,g)
|| MV $X0,$X15
|| ROTL $G,0,$H ; h = g
|| LDW *$K256++,$K ; pre-fetch K256[i+1]
ADD $S1,$T1,$T1 ; T1 += Sigma1(e)
|| ADD $S0,$Maj,$T2 ; T2 = Sigma0(a) + Maj(a,b,c)
|| MV $F,$G ; g = f
|| MV $Xn,$X0 ; modulo-scheduled
|| LDW *++$Xia,$X9 ; modulo-scheduled
|| ROTL $X1,25,$t0e ; module-scheduled
|| ROTL $X14,15,$t0a ; modulo-scheduled
ROTL $X1,14,$t1e ; modulo-scheduled
|| ROTL $X14,13,$t1a ; modulo-scheduled
|| MV $E,$F ; f = e
|| ADD $D,$T1,$E ; e = d + T1
|| MV $C,$D ; d = c
|| MV $B,$C ; c = b
MV $A,$B ; b = a
|| ADD $T1,$T2,$A ; a = T1 + T2
|| SHRU $X1,3,$s0 ; modulo-scheduled
|| SHRU $X14,10,$s1 ; modulo-scheduled
SPKERNEL
[A0] B outerloop?
|| [A0] LDNW *$INP++,$Xn ; pre-fetch input
|| [A0] ADDK -260,$K256 ; rewind K256
|| ADD $Actx,$A,$A ; accumulate ctx
|| ADD $Ectx,$E,$E
|| ADD $Bctx,$B,$B
ADD $Fctx,$F,$F
|| ADD $Cctx,$C,$C
|| ADD $Gctx,$G,$G
|| ADD $Dctx,$D,$D
|| ADD $Hctx,$H,$H
|| [A0] LDW *$K256++,$K ; pre-fetch K256[0]
[!A0] BNOP RA
||[!A0] MV $CTXA,$CTXB
[!A0] MV FP,SP ; restore stack pointer
||[!A0] LDW *FP[0],FP ; restore frame pointer
[!A0] STW $A,*${CTXA}[0] ; save ctx
||[!A0] STW $E,*${CTXB}[4]
||[!A0] MVK 0,B0
[!A0] STW $B,*${CTXA}[1]
||[!A0] STW $F,*${CTXB}[5]
||[!A0] MVC B0,AMR ; clear AMR
STW $C,*${CTXA}[2]
|| STW $G,*${CTXB}[6]
STW $D,*${CTXA}[3]
|| STW $H,*${CTXB}[7]
.endasmfunc
.if __TI_EABI__
.sect ".text:sha_asm.const"
.else
.sect ".const:sha_asm"
.endif
.align 128
K256:
.uword 0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5
.uword 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5
.uword 0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3
.uword 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174
.uword 0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc
.uword 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da
.uword 0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7
.uword 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967
.uword 0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13
.uword 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85
.uword 0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3
.uword 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070
.uword 0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5
.uword 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3
.uword 0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208
.uword 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
.cstring "SHA256 block transform for C64x+, CRYPTOGAMS by <appro\@openssl.org>"
.align 4
___
print $code;
close STDOUT or die "error closing STDOUT: $!";
|
