xref: /freebsd/crypto/openssl/crypto/sha/asm/sha1-parisc.pl (revision ec4deee4e4f2aef1b97d9424f25d04e91fd7dc10) 
1#! /usr/bin/env perl
2# Copyright 2009-2020 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# SHA1 block procedure for PA-RISC.
18
19# June 2009.
20#
21# On PA-7100LC performance is >30% better than gcc 3.2 generated code
22# for aligned input and >50% better for unaligned. Compared to vendor
23# compiler on PA-8600 it's almost 60% faster in 64-bit build and just
24# few percent faster in 32-bit one (this for aligned input, data for
25# unaligned input is not available).
26#
27# Special thanks to polarhome.com for providing HP-UX account.
28
29$flavour = shift;
30$output = shift;
31open STDOUT,">$output";
32
33if ($flavour =~ /64/) {
34	$LEVEL		="2.0W";
35	$SIZE_T		=8;
36	$FRAME_MARKER	=80;
37	$SAVED_RP	=16;
38	$PUSH		="std";
39	$PUSHMA		="std,ma";
40	$POP		="ldd";
41	$POPMB		="ldd,mb";
42} else {
43	$LEVEL		="1.0";
44	$SIZE_T		=4;
45	$FRAME_MARKER	=48;
46	$SAVED_RP	=20;
47	$PUSH		="stw";
48	$PUSHMA		="stwm";
49	$POP		="ldw";
50	$POPMB		="ldwm";
51}
52
53$FRAME=14*$SIZE_T+$FRAME_MARKER;# 14 saved regs + frame marker
54				#                 [+ argument transfer]
55$ctx="%r26";		# arg0
56$inp="%r25";		# arg1
57$num="%r24";		# arg2
58
59$t0="%r28";
60$t1="%r29";
61$K="%r31";
62
63@X=("%r1", "%r2", "%r3", "%r4", "%r5", "%r6", "%r7", "%r8",
64    "%r9", "%r10","%r11","%r12","%r13","%r14","%r15","%r16",$t0);
65
66@V=($A,$B,$C,$D,$E)=("%r19","%r20","%r21","%r22","%r23");
67
68sub BODY_00_19 {
69my ($i,$a,$b,$c,$d,$e)=@_;
70my $j=$i+1;
71$code.=<<___ if ($i<15);
72	addl	$K,$e,$e	; $i
73	shd	$a,$a,27,$t1
74	addl	@X[$i],$e,$e
75	and	$c,$b,$t0
76	addl	$t1,$e,$e
77	andcm	$d,$b,$t1
78	shd	$b,$b,2,$b
79	or	$t1,$t0,$t0
80	addl	$t0,$e,$e
81___
82$code.=<<___ if ($i>=15);	# with forward Xupdate
83	addl	$K,$e,$e	; $i
84	shd	$a,$a,27,$t1
85	xor	@X[($j+2)%16],@X[$j%16],@X[$j%16]
86	addl	@X[$i%16],$e,$e
87	and	$c,$b,$t0
88	xor	@X[($j+8)%16],@X[$j%16],@X[$j%16]
89	addl	$t1,$e,$e
90	andcm	$d,$b,$t1
91	shd	$b,$b,2,$b
92	or	$t1,$t0,$t0
93	xor	@X[($j+13)%16],@X[$j%16],@X[$j%16]
94	add	$t0,$e,$e
95	shd	@X[$j%16],@X[$j%16],31,@X[$j%16]
96___
97}
98
99sub BODY_20_39 {
100my ($i,$a,$b,$c,$d,$e)=@_;
101my $j=$i+1;
102$code.=<<___ if ($i<79);
103	xor	@X[($j+2)%16],@X[$j%16],@X[$j%16]	; $i
104	addl	$K,$e,$e
105	shd	$a,$a,27,$t1
106	xor	@X[($j+8)%16],@X[$j%16],@X[$j%16]
107	addl	@X[$i%16],$e,$e
108	xor	$b,$c,$t0
109	xor	@X[($j+13)%16],@X[$j%16],@X[$j%16]
110	addl	$t1,$e,$e
111	shd	$b,$b,2,$b
112	xor	$d,$t0,$t0
113	shd	@X[$j%16],@X[$j%16],31,@X[$j%16]
114	addl	$t0,$e,$e
115___
116$code.=<<___ if ($i==79);	# with context load
117	ldw	0($ctx),@X[0]	; $i
118	addl	$K,$e,$e
119	shd	$a,$a,27,$t1
120	ldw	4($ctx),@X[1]
121	addl	@X[$i%16],$e,$e
122	xor	$b,$c,$t0
123	ldw	8($ctx),@X[2]
124	addl	$t1,$e,$e
125	shd	$b,$b,2,$b
126	xor	$d,$t0,$t0
127	ldw	12($ctx),@X[3]
128	addl	$t0,$e,$e
129	ldw	16($ctx),@X[4]
130___
131}
132
133sub BODY_40_59 {
134my ($i,$a,$b,$c,$d,$e)=@_;
135my $j=$i+1;
136$code.=<<___;
137	shd	$a,$a,27,$t1	; $i
138	addl	$K,$e,$e
139	xor	@X[($j+2)%16],@X[$j%16],@X[$j%16]
140	xor	$d,$c,$t0
141	addl	@X[$i%16],$e,$e
142	xor	@X[($j+8)%16],@X[$j%16],@X[$j%16]
143	and	$b,$t0,$t0
144	addl	$t1,$e,$e
145	shd	$b,$b,2,$b
146	xor	@X[($j+13)%16],@X[$j%16],@X[$j%16]
147	addl	$t0,$e,$e
148	and	$d,$c,$t1
149	shd	@X[$j%16],@X[$j%16],31,@X[$j%16]
150	addl	$t1,$e,$e
151___
152}
153
154$code=<<___;
155	.LEVEL	$LEVEL
156	.SPACE	\$TEXT\$
157	.SUBSPA	\$CODE\$,QUAD=0,ALIGN=8,ACCESS=0x2C,CODE_ONLY
158
159	.EXPORT	sha1_block_data_order,ENTRY,ARGW0=GR,ARGW1=GR,ARGW2=GR
160sha1_block_data_order
161	.PROC
162	.CALLINFO	FRAME=`$FRAME-14*$SIZE_T`,NO_CALLS,SAVE_RP,ENTRY_GR=16
163	.ENTRY
164	$PUSH	%r2,-$SAVED_RP(%sp)	; standard prologue
165	$PUSHMA	%r3,$FRAME(%sp)
166	$PUSH	%r4,`-$FRAME+1*$SIZE_T`(%sp)
167	$PUSH	%r5,`-$FRAME+2*$SIZE_T`(%sp)
168	$PUSH	%r6,`-$FRAME+3*$SIZE_T`(%sp)
169	$PUSH	%r7,`-$FRAME+4*$SIZE_T`(%sp)
170	$PUSH	%r8,`-$FRAME+5*$SIZE_T`(%sp)
171	$PUSH	%r9,`-$FRAME+6*$SIZE_T`(%sp)
172	$PUSH	%r10,`-$FRAME+7*$SIZE_T`(%sp)
173	$PUSH	%r11,`-$FRAME+8*$SIZE_T`(%sp)
174	$PUSH	%r12,`-$FRAME+9*$SIZE_T`(%sp)
175	$PUSH	%r13,`-$FRAME+10*$SIZE_T`(%sp)
176	$PUSH	%r14,`-$FRAME+11*$SIZE_T`(%sp)
177	$PUSH	%r15,`-$FRAME+12*$SIZE_T`(%sp)
178	$PUSH	%r16,`-$FRAME+13*$SIZE_T`(%sp)
179
180	ldw	0($ctx),$A
181	ldw	4($ctx),$B
182	ldw	8($ctx),$C
183	ldw	12($ctx),$D
184	ldw	16($ctx),$E
185
186	extru	$inp,31,2,$t0		; t0=inp&3;
187	sh3addl	$t0,%r0,$t0		; t0*=8;
188	subi	32,$t0,$t0		; t0=32-t0;
189	mtctl	$t0,%cr11		; %sar=t0;
190
191L\$oop
192	ldi	3,$t0
193	andcm	$inp,$t0,$t0		; 64-bit neutral
194___
195	for ($i=0;$i<15;$i++) {		# load input block
196	$code.="\tldw	`4*$i`($t0),@X[$i]\n";		}
197$code.=<<___;
198	cmpb,*=	$inp,$t0,L\$aligned
199	ldw	60($t0),@X[15]
200	ldw	64($t0),@X[16]
201___
202	for ($i=0;$i<16;$i++) {		# align input
203	$code.="\tvshd	@X[$i],@X[$i+1],@X[$i]\n";	}
204$code.=<<___;
205L\$aligned
206	ldil	L'0x5a827000,$K		; K_00_19
207	ldo	0x999($K),$K
208___
209for ($i=0;$i<20;$i++)   { &BODY_00_19($i,@V); unshift(@V,pop(@V)); }
210$code.=<<___;
211	ldil	L'0x6ed9e000,$K		; K_20_39
212	ldo	0xba1($K),$K
213___
214
215for (;$i<40;$i++)       { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
216$code.=<<___;
217	ldil	L'0x8f1bb000,$K		; K_40_59
218	ldo	0xcdc($K),$K
219___
220
221for (;$i<60;$i++)       { &BODY_40_59($i,@V); unshift(@V,pop(@V)); }
222$code.=<<___;
223	ldil	L'0xca62c000,$K		; K_60_79
224	ldo	0x1d6($K),$K
225___
226for (;$i<80;$i++)       { &BODY_20_39($i,@V); unshift(@V,pop(@V)); }
227
228$code.=<<___;
229	addl	@X[0],$A,$A
230	addl	@X[1],$B,$B
231	addl	@X[2],$C,$C
232	addl	@X[3],$D,$D
233	addl	@X[4],$E,$E
234	stw	$A,0($ctx)
235	stw	$B,4($ctx)
236	stw	$C,8($ctx)
237	stw	$D,12($ctx)
238	stw	$E,16($ctx)
239	addib,*<> -1,$num,L\$oop
240	ldo	64($inp),$inp
241
242	$POP	`-$FRAME-$SAVED_RP`(%sp),%r2	; standard epilogue
243	$POP	`-$FRAME+1*$SIZE_T`(%sp),%r4
244	$POP	`-$FRAME+2*$SIZE_T`(%sp),%r5
245	$POP	`-$FRAME+3*$SIZE_T`(%sp),%r6
246	$POP	`-$FRAME+4*$SIZE_T`(%sp),%r7
247	$POP	`-$FRAME+5*$SIZE_T`(%sp),%r8
248	$POP	`-$FRAME+6*$SIZE_T`(%sp),%r9
249	$POP	`-$FRAME+7*$SIZE_T`(%sp),%r10
250	$POP	`-$FRAME+8*$SIZE_T`(%sp),%r11
251	$POP	`-$FRAME+9*$SIZE_T`(%sp),%r12
252	$POP	`-$FRAME+10*$SIZE_T`(%sp),%r13
253	$POP	`-$FRAME+11*$SIZE_T`(%sp),%r14
254	$POP	`-$FRAME+12*$SIZE_T`(%sp),%r15
255	$POP	`-$FRAME+13*$SIZE_T`(%sp),%r16
256	bv	(%r2)
257	.EXIT
258	$POPMB	-$FRAME(%sp),%r3
259	.PROCEND
260	.STRINGZ "SHA1 block transform for PA-RISC, CRYPTOGAMS by <appro\@openssl.org>"
261___
262
263if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
264	=~ /GNU assembler/) {
265    $gnuas = 1;
266}
267
268foreach(split("\n",$code)) {
269	s/\`([^\`]*)\`/eval $1/ge;
270
271	s/(\.LEVEL\s+2\.0)W/$1w/	if ($gnuas && $SIZE_T==8);
272	s/\.SPACE\s+\$TEXT\$/.text/	if ($gnuas && $SIZE_T==8);
273	s/\.SUBSPA.*//			if ($gnuas && $SIZE_T==8);
274	s/,\*/,/			if ($SIZE_T==4);
275	s/\bbv\b/bve/			if ($SIZE_T==8);
276
277	print $_,"\n";
278}
279close STDOUT or die "error closing STDOUT: $!";
280