1#! /usr/bin/env perl
2# Copyright 2010-2020 The OpenSSL Project Authors. All Rights Reserved.
3#
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
8
9
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# ====================================================================
16
17# SHA2 block procedures for MIPS.
18
19# October 2010.
20#
21# SHA256 performance improvement on MIPS R5000 CPU is ~27% over gcc-
22# generated code in o32 build and ~55% in n32/64 build. SHA512 [which
23# for now can only be compiled for MIPS64 ISA] improvement is modest
24# ~17%, but it comes for free, because it's same instruction sequence.
25# Improvement coefficients are for aligned input.
26
27# September 2012.
28#
29# Add MIPS[32|64]R2 code (>25% less instructions).
30
31######################################################################
32# There is a number of MIPS ABI in use, O32 and N32/64 are most
33# widely used. Then there is a new contender: NUBI. It appears that if
34# one picks the latter, it's possible to arrange code in ABI neutral
35# manner. Therefore let's stick to NUBI register layout:
36#
37($zero,$at,$t0,$t1,$t2)=map("\$$_",(0..2,24,25));
38($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11));
39($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7,$s8,$s9,$s10,$s11)=map("\$$_",(12..23));
40($gp,$tp,$sp,$fp,$ra)=map("\$$_",(3,28..31));
41#
42# The return value is placed in $a0. Following coding rules facilitate
43# interoperability:
44#
45# - never ever touch $tp, "thread pointer", former $gp [o32 can be
46#   excluded from the rule, because it's specified volatile];
47# - copy return value to $t0, former $v0 [or to $a0 if you're adapting
48#   old code];
49# - on O32 populate $a4-$a7 with 'lw $aN,4*N($sp)' if necessary;
50#
51# For reference here is register layout for N32/64 MIPS ABIs:
52#
53# ($zero,$at,$v0,$v1)=map("\$$_",(0..3));
54# ($a0,$a1,$a2,$a3,$a4,$a5,$a6,$a7)=map("\$$_",(4..11));
55# ($t0,$t1,$t2,$t3,$t8,$t9)=map("\$$_",(12..15,24,25));
56# ($s0,$s1,$s2,$s3,$s4,$s5,$s6,$s7)=map("\$$_",(16..23));
57# ($gp,$sp,$fp,$ra)=map("\$$_",(28..31));
58#
59$flavour = shift || "o32"; # supported flavours are o32,n32,64,nubi32,nubi64
60
61if ($flavour =~ /64|n32/i) {
62	$PTR_LA="dla";
63	$PTR_ADD="daddu";	# incidentally works even on n32
64	$PTR_SUB="dsubu";	# incidentally works even on n32
65	$REG_S="sd";
66	$REG_L="ld";
67	$PTR_SLL="dsll";	# incidentally works even on n32
68	$SZREG=8;
69} else {
70	$PTR_LA="la";
71	$PTR_ADD="addu";
72	$PTR_SUB="subu";
73	$REG_S="sw";
74	$REG_L="lw";
75	$PTR_SLL="sll";
76	$SZREG=4;
77}
78$pf = ($flavour =~ /nubi/i) ? $t0 : $t2;
79#
80# <appro@openssl.org>
81#
82######################################################################
83
84$big_endian=(`echo MIPSEB | $ENV{CC} -E -`=~/MIPSEB/)?0:1 if ($ENV{CC});
85
86for (@ARGV) {	$output=$_ if (/\w[\w\-]*\.\w+$/);	}
87open STDOUT,">$output";
88
89if (!defined($big_endian)) { $big_endian=(unpack('L',pack('N',1))==1); }
90
91if ($output =~ /512/) {
92	$label="512";
93	$SZ=8;
94	$LD="ld";		# load from memory
95	$ST="sd";		# store to memory
96	$SLL="dsll";		# shift left logical
97	$SRL="dsrl";		# shift right logical
98	$ADDU="daddu";
99	$ROTR="drotr";
100	@Sigma0=(28,34,39);
101	@Sigma1=(14,18,41);
102	@sigma0=( 7, 1, 8);	# right shift first
103	@sigma1=( 6,19,61);	# right shift first
104	$lastK=0x817;
105	$rounds=80;
106} else {
107	$label="256";
108	$SZ=4;
109	$LD="lw";		# load from memory
110	$ST="sw";		# store to memory
111	$SLL="sll";		# shift left logical
112	$SRL="srl";		# shift right logical
113	$ADDU="addu";
114	$ROTR="rotr";
115	@Sigma0=( 2,13,22);
116	@Sigma1=( 6,11,25);
117	@sigma0=( 3, 7,18);	# right shift first
118	@sigma1=(10,17,19);	# right shift first
119	$lastK=0x8f2;
120	$rounds=64;
121}
122
123$MSB = $big_endian ? 0 : ($SZ-1);
124$LSB = ($SZ-1)&~$MSB;
125
126@V=($A,$B,$C,$D,$E,$F,$G,$H)=map("\$$_",(1,2,3,7,24,25,30,31));
127@X=map("\$$_",(8..23));
128
129$ctx=$a0;
130$inp=$a1;
131$len=$a2;	$Ktbl=$len;
132
133sub BODY_00_15 {
134my ($i,$a,$b,$c,$d,$e,$f,$g,$h)=@_;
135my ($T1,$tmp0,$tmp1,$tmp2)=(@X[4],@X[5],@X[6],@X[7]);
136
137$code.=<<___ if ($i<15);
138#if defined(_MIPS_ARCH_MIPS32R6) || defined(_MIPS_ARCH_MIPS64R6)
139	${LD}	@X[1],`($i+1)*$SZ`($inp)
140#else
141	${LD}l	@X[1],`($i+1)*$SZ+$MSB`($inp)
142	${LD}r	@X[1],`($i+1)*$SZ+$LSB`($inp)
143#endif
144___
145$code.=<<___	if (!$big_endian && $i<16 && $SZ==4);
146#if defined(_MIPS_ARCH_MIPS32R2) || defined(_MIPS_ARCH_MIPS64R2)
147	wsbh	@X[0],@X[0]		# byte swap($i)
148	rotr	@X[0],@X[0],16
149#else
150	srl	$tmp0,@X[0],24		# byte swap($i)
151	srl	$tmp1,@X[0],8
152	andi	$tmp2,@X[0],0xFF00
153	sll	@X[0],@X[0],24
154	andi	$tmp1,0xFF00
155	sll	$tmp2,$tmp2,8
156	or	@X[0],$tmp0
157	or	$tmp1,$tmp2
158	or	@X[0],$tmp1
159#endif
160___
161$code.=<<___	if (!$big_endian && $i<16 && $SZ==8);
162#if defined(_MIPS_ARCH_MIPS64R2)
163	dsbh	@X[0],@X[0]		# byte swap($i)
164	dshd	@X[0],@X[0]
165#else
166	ori	$tmp0,$zero,0xFF
167	dsll	$tmp2,$tmp0,32
168	or	$tmp0,$tmp2		# 0x000000FF000000FF
169	and	$tmp1,@X[0],$tmp0	# byte swap($i)
170	dsrl	$tmp2,@X[0],24
171	dsll	$tmp1,24
172	and	$tmp2,$tmp0
173	dsll	$tmp0,8			# 0x0000FF000000FF00
174	or	$tmp1,$tmp2
175	and	$tmp2,@X[0],$tmp0
176	dsrl	@X[0],8
177	dsll	$tmp2,8
178	and	@X[0],$tmp0
179	or	$tmp1,$tmp2
180	or	@X[0],$tmp1
181	dsrl	$tmp1,@X[0],32
182	dsll	@X[0],32
183	or	@X[0],$tmp1
184#endif
185___
186$code.=<<___;
187#if defined(_MIPS_ARCH_MIPS32R2) || defined(_MIPS_ARCH_MIPS64R2)
188	xor	$tmp2,$f,$g			# $i
189	$ROTR	$tmp0,$e,@Sigma1[0]
190	$ADDU	$T1,$X[0],$h
191	$ROTR	$tmp1,$e,@Sigma1[1]
192	and	$tmp2,$e
193	$ROTR	$h,$e,@Sigma1[2]
194	xor	$tmp0,$tmp1
195	$ROTR	$tmp1,$a,@Sigma0[0]
196	xor	$tmp2,$g			# Ch(e,f,g)
197	xor	$tmp0,$h			# Sigma1(e)
198
199	$ROTR	$h,$a,@Sigma0[1]
200	$ADDU	$T1,$tmp2
201	$LD	$tmp2,`$i*$SZ`($Ktbl)		# K[$i]
202	xor	$h,$tmp1
203	$ROTR	$tmp1,$a,@Sigma0[2]
204	$ADDU	$T1,$tmp0
205	and	$tmp0,$b,$c
206	xor	$h,$tmp1			# Sigma0(a)
207	xor	$tmp1,$b,$c
208#else
209	$ADDU	$T1,$X[0],$h			# $i
210	$SRL	$h,$e,@Sigma1[0]
211	xor	$tmp2,$f,$g
212	$SLL	$tmp1,$e,`$SZ*8-@Sigma1[2]`
213	and	$tmp2,$e
214	$SRL	$tmp0,$e,@Sigma1[1]
215	xor	$h,$tmp1
216	$SLL	$tmp1,$e,`$SZ*8-@Sigma1[1]`
217	xor	$h,$tmp0
218	$SRL	$tmp0,$e,@Sigma1[2]
219	xor	$h,$tmp1
220	$SLL	$tmp1,$e,`$SZ*8-@Sigma1[0]`
221	xor	$h,$tmp0
222	xor	$tmp2,$g			# Ch(e,f,g)
223	xor	$tmp0,$tmp1,$h			# Sigma1(e)
224
225	$SRL	$h,$a,@Sigma0[0]
226	$ADDU	$T1,$tmp2
227	$LD	$tmp2,`$i*$SZ`($Ktbl)		# K[$i]
228	$SLL	$tmp1,$a,`$SZ*8-@Sigma0[2]`
229	$ADDU	$T1,$tmp0
230	$SRL	$tmp0,$a,@Sigma0[1]
231	xor	$h,$tmp1
232	$SLL	$tmp1,$a,`$SZ*8-@Sigma0[1]`
233	xor	$h,$tmp0
234	$SRL	$tmp0,$a,@Sigma0[2]
235	xor	$h,$tmp1
236	$SLL	$tmp1,$a,`$SZ*8-@Sigma0[0]`
237	xor	$h,$tmp0
238	and	$tmp0,$b,$c
239	xor	$h,$tmp1			# Sigma0(a)
240	xor	$tmp1,$b,$c
241#endif
242	$ST	@X[0],`($i%16)*$SZ`($sp)	# offload to ring buffer
243	$ADDU	$h,$tmp0
244	and	$tmp1,$a
245	$ADDU	$T1,$tmp2			# +=K[$i]
246	$ADDU	$h,$tmp1			# +=Maj(a,b,c)
247	$ADDU	$d,$T1
248	$ADDU	$h,$T1
249___
250$code.=<<___ if ($i>=13);
251	$LD	@X[3],`(($i+3)%16)*$SZ`($sp)	# prefetch from ring buffer
252___
253}
254
255sub BODY_16_XX {
256my $i=@_[0];
257my ($tmp0,$tmp1,$tmp2,$tmp3)=(@X[4],@X[5],@X[6],@X[7]);
258
259$code.=<<___;
260#if defined(_MIPS_ARCH_MIPS32R2) || defined(_MIPS_ARCH_MIPS64R2)
261	$SRL	$tmp2,@X[1],@sigma0[0]		# Xupdate($i)
262	$ROTR	$tmp0,@X[1],@sigma0[1]
263	$ADDU	@X[0],@X[9]			# +=X[i+9]
264	xor	$tmp2,$tmp0
265	$ROTR	$tmp0,@X[1],@sigma0[2]
266
267	$SRL	$tmp3,@X[14],@sigma1[0]
268	$ROTR	$tmp1,@X[14],@sigma1[1]
269	xor	$tmp2,$tmp0			# sigma0(X[i+1])
270	$ROTR	$tmp0,@X[14],@sigma1[2]
271	xor	$tmp3,$tmp1
272	$ADDU	@X[0],$tmp2
273#else
274	$SRL	$tmp2,@X[1],@sigma0[0]		# Xupdate($i)
275	$ADDU	@X[0],@X[9]			# +=X[i+9]
276	$SLL	$tmp1,@X[1],`$SZ*8-@sigma0[2]`
277	$SRL	$tmp0,@X[1],@sigma0[1]
278	xor	$tmp2,$tmp1
279	$SLL	$tmp1,`@sigma0[2]-@sigma0[1]`
280	xor	$tmp2,$tmp0
281	$SRL	$tmp0,@X[1],@sigma0[2]
282	xor	$tmp2,$tmp1
283
284	$SRL	$tmp3,@X[14],@sigma1[0]
285	xor	$tmp2,$tmp0			# sigma0(X[i+1])
286	$SLL	$tmp1,@X[14],`$SZ*8-@sigma1[2]`
287	$ADDU	@X[0],$tmp2
288	$SRL	$tmp0,@X[14],@sigma1[1]
289	xor	$tmp3,$tmp1
290	$SLL	$tmp1,`@sigma1[2]-@sigma1[1]`
291	xor	$tmp3,$tmp0
292	$SRL	$tmp0,@X[14],@sigma1[2]
293	xor	$tmp3,$tmp1
294#endif
295	xor	$tmp3,$tmp0			# sigma1(X[i+14])
296	$ADDU	@X[0],$tmp3
297___
298	&BODY_00_15(@_);
299}
300
301$FRAMESIZE=16*$SZ+16*$SZREG;
302$SAVED_REGS_MASK = ($flavour =~ /nubi/i) ? "0xc0fff008" : "0xc0ff0000";
303
304$code.=<<___;
305#include "mips_arch.h"
306
307.text
308.set	noat
309#if !defined(__mips_eabi) && (!defined(__vxworks) || defined(__pic__))
310.option	pic2
311#endif
312
313.align	5
314.globl	sha${label}_block_data_order
315.ent	sha${label}_block_data_order
316sha${label}_block_data_order:
317	.frame	$sp,$FRAMESIZE,$ra
318	.mask	$SAVED_REGS_MASK,-$SZREG
319	.set	noreorder
320___
321$code.=<<___ if ($flavour =~ /o32/i);	# o32 PIC-ification
322	.cpload	$pf
323___
324$code.=<<___;
325	$PTR_SUB $sp,$FRAMESIZE
326	$REG_S	$ra,$FRAMESIZE-1*$SZREG($sp)
327	$REG_S	$fp,$FRAMESIZE-2*$SZREG($sp)
328	$REG_S	$s11,$FRAMESIZE-3*$SZREG($sp)
329	$REG_S	$s10,$FRAMESIZE-4*$SZREG($sp)
330	$REG_S	$s9,$FRAMESIZE-5*$SZREG($sp)
331	$REG_S	$s8,$FRAMESIZE-6*$SZREG($sp)
332	$REG_S	$s7,$FRAMESIZE-7*$SZREG($sp)
333	$REG_S	$s6,$FRAMESIZE-8*$SZREG($sp)
334	$REG_S	$s5,$FRAMESIZE-9*$SZREG($sp)
335	$REG_S	$s4,$FRAMESIZE-10*$SZREG($sp)
336___
337$code.=<<___ if ($flavour =~ /nubi/i);	# optimize non-nubi prologue
338	$REG_S	$s3,$FRAMESIZE-11*$SZREG($sp)
339	$REG_S	$s2,$FRAMESIZE-12*$SZREG($sp)
340	$REG_S	$s1,$FRAMESIZE-13*$SZREG($sp)
341	$REG_S	$s0,$FRAMESIZE-14*$SZREG($sp)
342	$REG_S	$gp,$FRAMESIZE-15*$SZREG($sp)
343___
344$code.=<<___;
345	$PTR_SLL @X[15],$len,`log(16*$SZ)/log(2)`
346___
347$code.=<<___ if ($flavour !~ /o32/i);	# non-o32 PIC-ification
348	.cplocal	$Ktbl
349	.cpsetup	$pf,$zero,sha${label}_block_data_order
350___
351$code.=<<___;
352	.set	reorder
353	$PTR_LA	$Ktbl,K${label}		# PIC-ified 'load address'
354
355	$LD	$A,0*$SZ($ctx)		# load context
356	$LD	$B,1*$SZ($ctx)
357	$LD	$C,2*$SZ($ctx)
358	$LD	$D,3*$SZ($ctx)
359	$LD	$E,4*$SZ($ctx)
360	$LD	$F,5*$SZ($ctx)
361	$LD	$G,6*$SZ($ctx)
362	$LD	$H,7*$SZ($ctx)
363
364	$PTR_ADD @X[15],$inp		# pointer to the end of input
365	$REG_S	@X[15],16*$SZ($sp)
366	b	.Loop
367
368.align	5
369.Loop:
370#if defined(_MIPS_ARCH_MIPS32R6) || defined(_MIPS_ARCH_MIPS64R6)
371	${LD}	@X[0],($inp)
372#else
373	${LD}l	@X[0],$MSB($inp)
374	${LD}r	@X[0],$LSB($inp)
375#endif
376___
377for ($i=0;$i<16;$i++)
378{ &BODY_00_15($i,@V); unshift(@V,pop(@V)); push(@X,shift(@X)); }
379$code.=<<___;
380	b	.L16_xx
381.align	4
382.L16_xx:
383___
384for (;$i<32;$i++)
385{ &BODY_16_XX($i,@V); unshift(@V,pop(@V)); push(@X,shift(@X)); }
386$code.=<<___;
387	and	@X[6],0xfff
388	li	@X[7],$lastK
389	.set	noreorder
390	bne	@X[6],@X[7],.L16_xx
391	$PTR_ADD $Ktbl,16*$SZ		# Ktbl+=16
392
393	$REG_L	@X[15],16*$SZ($sp)	# restore pointer to the end of input
394	$LD	@X[0],0*$SZ($ctx)
395	$LD	@X[1],1*$SZ($ctx)
396	$LD	@X[2],2*$SZ($ctx)
397	$PTR_ADD $inp,16*$SZ
398	$LD	@X[3],3*$SZ($ctx)
399	$ADDU	$A,@X[0]
400	$LD	@X[4],4*$SZ($ctx)
401	$ADDU	$B,@X[1]
402	$LD	@X[5],5*$SZ($ctx)
403	$ADDU	$C,@X[2]
404	$LD	@X[6],6*$SZ($ctx)
405	$ADDU	$D,@X[3]
406	$LD	@X[7],7*$SZ($ctx)
407	$ADDU	$E,@X[4]
408	$ST	$A,0*$SZ($ctx)
409	$ADDU	$F,@X[5]
410	$ST	$B,1*$SZ($ctx)
411	$ADDU	$G,@X[6]
412	$ST	$C,2*$SZ($ctx)
413	$ADDU	$H,@X[7]
414	$ST	$D,3*$SZ($ctx)
415	$ST	$E,4*$SZ($ctx)
416	$ST	$F,5*$SZ($ctx)
417	$ST	$G,6*$SZ($ctx)
418	$ST	$H,7*$SZ($ctx)
419
420	bne	$inp,@X[15],.Loop
421	$PTR_SUB $Ktbl,`($rounds-16)*$SZ`	# rewind $Ktbl
422
423	$REG_L	$ra,$FRAMESIZE-1*$SZREG($sp)
424	$REG_L	$fp,$FRAMESIZE-2*$SZREG($sp)
425	$REG_L	$s11,$FRAMESIZE-3*$SZREG($sp)
426	$REG_L	$s10,$FRAMESIZE-4*$SZREG($sp)
427	$REG_L	$s9,$FRAMESIZE-5*$SZREG($sp)
428	$REG_L	$s8,$FRAMESIZE-6*$SZREG($sp)
429	$REG_L	$s7,$FRAMESIZE-7*$SZREG($sp)
430	$REG_L	$s6,$FRAMESIZE-8*$SZREG($sp)
431	$REG_L	$s5,$FRAMESIZE-9*$SZREG($sp)
432	$REG_L	$s4,$FRAMESIZE-10*$SZREG($sp)
433___
434$code.=<<___ if ($flavour =~ /nubi/i);
435	$REG_L	$s3,$FRAMESIZE-11*$SZREG($sp)
436	$REG_L	$s2,$FRAMESIZE-12*$SZREG($sp)
437	$REG_L	$s1,$FRAMESIZE-13*$SZREG($sp)
438	$REG_L	$s0,$FRAMESIZE-14*$SZREG($sp)
439	$REG_L	$gp,$FRAMESIZE-15*$SZREG($sp)
440___
441$code.=<<___;
442	jr	$ra
443	$PTR_ADD $sp,$FRAMESIZE
444.end	sha${label}_block_data_order
445
446.rdata
447.align	5
448K${label}:
449___
450if ($SZ==4) {
451$code.=<<___;
452	.word	0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5
453	.word	0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5
454	.word	0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3
455	.word	0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174
456	.word	0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc
457	.word	0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da
458	.word	0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7
459	.word	0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967
460	.word	0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13
461	.word	0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85
462	.word	0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3
463	.word	0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070
464	.word	0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5
465	.word	0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3
466	.word	0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208
467	.word	0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
468___
469} else {
470$code.=<<___;
471	.dword	0x428a2f98d728ae22, 0x7137449123ef65cd
472	.dword	0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc
473	.dword	0x3956c25bf348b538, 0x59f111f1b605d019
474	.dword	0x923f82a4af194f9b, 0xab1c5ed5da6d8118
475	.dword	0xd807aa98a3030242, 0x12835b0145706fbe
476	.dword	0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2
477	.dword	0x72be5d74f27b896f, 0x80deb1fe3b1696b1
478	.dword	0x9bdc06a725c71235, 0xc19bf174cf692694
479	.dword	0xe49b69c19ef14ad2, 0xefbe4786384f25e3
480	.dword	0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65
481	.dword	0x2de92c6f592b0275, 0x4a7484aa6ea6e483
482	.dword	0x5cb0a9dcbd41fbd4, 0x76f988da831153b5
483	.dword	0x983e5152ee66dfab, 0xa831c66d2db43210
484	.dword	0xb00327c898fb213f, 0xbf597fc7beef0ee4
485	.dword	0xc6e00bf33da88fc2, 0xd5a79147930aa725
486	.dword	0x06ca6351e003826f, 0x142929670a0e6e70
487	.dword	0x27b70a8546d22ffc, 0x2e1b21385c26c926
488	.dword	0x4d2c6dfc5ac42aed, 0x53380d139d95b3df
489	.dword	0x650a73548baf63de, 0x766a0abb3c77b2a8
490	.dword	0x81c2c92e47edaee6, 0x92722c851482353b
491	.dword	0xa2bfe8a14cf10364, 0xa81a664bbc423001
492	.dword	0xc24b8b70d0f89791, 0xc76c51a30654be30
493	.dword	0xd192e819d6ef5218, 0xd69906245565a910
494	.dword	0xf40e35855771202a, 0x106aa07032bbd1b8
495	.dword	0x19a4c116b8d2d0c8, 0x1e376c085141ab53
496	.dword	0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8
497	.dword	0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb
498	.dword	0x5b9cca4f7763e373, 0x682e6ff3d6b2b8a3
499	.dword	0x748f82ee5defb2fc, 0x78a5636f43172f60
500	.dword	0x84c87814a1f0ab72, 0x8cc702081a6439ec
501	.dword	0x90befffa23631e28, 0xa4506cebde82bde9
502	.dword	0xbef9a3f7b2c67915, 0xc67178f2e372532b
503	.dword	0xca273eceea26619c, 0xd186b8c721c0c207
504	.dword	0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178
505	.dword	0x06f067aa72176fba, 0x0a637dc5a2c898a6
506	.dword	0x113f9804bef90dae, 0x1b710b35131c471b
507	.dword	0x28db77f523047d84, 0x32caab7b40c72493
508	.dword	0x3c9ebe0a15c9bebc, 0x431d67c49c100d4c
509	.dword	0x4cc5d4becb3e42b6, 0x597f299cfc657e2a
510	.dword	0x5fcb6fab3ad6faec, 0x6c44198c4a475817
511___
512}
513$code.=<<___;
514.asciiz	"SHA${label} for MIPS, CRYPTOGAMS by <appro\@openssl.org>"
515.align	5
516
517___
518
519$code =~ s/\`([^\`]*)\`/eval $1/gem;
520print $code;
521close STDOUT or die "error closing STDOUT: $!";
522