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1#!/usr/bin/env perl
2#
3# ====================================================================
4# Written by Andy Polyakov <appro@fy.chalmers.se> 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# ====================================================================
9#
10# Eternal question is what's wrong with compiler generated code? The
11# trick is that it's possible to reduce the number of shifts required
12# to perform rotations by maintaining copy of 32-bit value in upper
13# bits of 64-bit register. Just follow mux2 and shrp instructions...
14# Performance under big-endian OS such as HP-UX is 179MBps*1GHz, which
15# is >50% better than HP C and >2x better than gcc.
16
17$code=<<___;
18.ident \"sha1-ia64.s, version 1.3\"
19.ident \"IA-64 ISA artwork by Andy Polyakov <appro\@fy.chalmers.se>\"
20.explicit
21
22___
23
24
25if ($^O eq "hpux") {
26 $ADDP="addp4";
27 for (@ARGV) { $ADDP="add" if (/[\+DD|\-mlp]64/); }
28} else { $ADDP="add"; }
29
30#$human=1;
31if ($human) { # useful for visual code auditing...
32 ($A,$B,$C,$D,$E) = ("A","B","C","D","E");
33 ($h0,$h1,$h2,$h3,$h4) = ("h0","h1","h2","h3","h4");
34 ($K_00_19, $K_20_39, $K_40_59, $K_60_79) =
35 ( "K_00_19","K_20_39","K_40_59","K_60_79" );
36 @X= ( "X0", "X1", "X2", "X3", "X4", "X5", "X6", "X7",
37 "X8", "X9","X10","X11","X12","X13","X14","X15" );
38}
39else {
40 ($A,$B,$C,$D,$E) = ("loc0","loc1","loc2","loc3","loc4");
41 ($h0,$h1,$h2,$h3,$h4) = ("loc5","loc6","loc7","loc8","loc9");
42 ($K_00_19, $K_20_39, $K_40_59, $K_60_79) =
43 ( "r14", "r15", "loc10", "loc11" );
44 @X= ( "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
45 "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31" );
46}
47
48sub BODY_00_15 {
49local *code=shift;
50my ($i,$a,$b,$c,$d,$e)=@_;
51my $j=$i+1;
52my $Xn=@X[$j%16];
53
54$code.=<<___ if ($i==0);
55{ .mmi; ld1 $X[$i]=[inp],2 // MSB
56 ld1 tmp2=[tmp3],2 };;
57{ .mmi; ld1 tmp0=[inp],2
58 ld1 tmp4=[tmp3],2 // LSB
59 dep $X[$i]=$X[$i],tmp2,8,8 };;
60___
61if ($i<15) {
62 $code.=<<___;
63{ .mmi; ld1 $Xn=[inp],2 // forward Xload
64 nop.m 0x0
65 dep tmp1=tmp0,tmp4,8,8 };;
66{ .mmi; ld1 tmp2=[tmp3],2 // forward Xload
67 and tmp4=$c,$b
68 dep $X[$i]=$X[$i],tmp1,16,16} //;;
69{ .mmi; add $e=$e,$K_00_19 // e+=K_00_19
70 andcm tmp1=$d,$b
71 dep.z tmp5=$a,5,27 };; // a<<5
72{ .mmi; add $e=$e,$X[$i] // e+=Xload
73 or tmp4=tmp4,tmp1 // F_00_19(b,c,d)=(b&c)|(~b&d)
74 extr.u tmp1=$a,27,5 };; // a>>27
75{ .mmi; ld1 tmp0=[inp],2 // forward Xload
76 add $e=$e,tmp4 // e+=F_00_19(b,c,d)
77 shrp $b=tmp6,tmp6,2 } // b=ROTATE(b,30)
78{ .mmi; ld1 tmp4=[tmp3],2 // forward Xload
79 or tmp5=tmp1,tmp5 // ROTATE(a,5)
80 mux2 tmp6=$a,0x44 };; // see b in next iteration
81{ .mii; add $e=$e,tmp5 // e+=ROTATE(a,5)
82 dep $Xn=$Xn,tmp2,8,8 // forward Xload
83 mux2 $X[$i]=$X[$i],0x44 } //;;
84
85___
86 }
87else {
88 $code.=<<___;
89{ .mii; and tmp3=$c,$b
90 dep tmp1=tmp0,tmp4,8,8;;
91 dep $X[$i]=$X[$i],tmp1,16,16} //;;
92{ .mmi; add $e=$e,$K_00_19 // e+=K_00_19
93 andcm tmp1=$d,$b
94 dep.z tmp5=$a,5,27 };; // a<<5
95{ .mmi; add $e=$e,$X[$i] // e+=Xupdate
96 or tmp4=tmp3,tmp1 // F_00_19(b,c,d)=(b&c)|(~b&d)
97 extr.u tmp1=$a,27,5 } // a>>27
98{ .mmi; xor $Xn=$Xn,$X[($j+2)%16] // forward Xupdate
99 xor tmp3=$X[($j+8)%16],$X[($j+13)%16] // forward Xupdate
100 nop.i 0 };;
101{ .mmi; add $e=$e,tmp4 // e+=F_00_19(b,c,d)
102 xor $Xn=$Xn,tmp3 // forward Xupdate
103 shrp $b=tmp6,tmp6,2 } // b=ROTATE(b,30)
104{ .mmi; or tmp1=tmp1,tmp5 // ROTATE(a,5)
105 mux2 tmp6=$a,0x44 };; // see b in next iteration
106{ .mii; add $e=$e,tmp1 // e+=ROTATE(a,5)
107 shrp $Xn=$Xn,$Xn,31 // ROTATE(x[0]^x[2]^x[8]^x[13],1)
108 mux2 $X[$i]=$X[$i],0x44 };;
109
110___
111 }
112}
113
114sub BODY_16_19 {
115local *code=shift;
116my ($i,$a,$b,$c,$d,$e)=@_;
117my $j=$i+1;
118my $Xn=@X[$j%16];
119
120$code.=<<___;
121{ .mib; add $e=$e,$K_00_19 // e+=K_00_19
122 dep.z tmp5=$a,5,27 } // a<<5
123{ .mib; andcm tmp1=$d,$b
124 and tmp0=$c,$b };;
125{ .mmi; add $e=$e,$X[$i%16] // e+=Xupdate
126 or tmp0=tmp0,tmp1 // F_00_19(b,c,d)=(b&c)|(~b&d)
127 extr.u tmp1=$a,27,5 } // a>>27
128{ .mmi; xor $Xn=$Xn,$X[($j+2)%16] // forward Xupdate
129 xor tmp3=$X[($j+8)%16],$X[($j+13)%16] // forward Xupdate
130 nop.i 0 };;
131{ .mmi; add $e=$e,tmp0 // f+=F_00_19(b,c,d)
132 xor $Xn=$Xn,tmp3 // forward Xupdate
133 shrp $b=tmp6,tmp6,2 } // b=ROTATE(b,30)
134{ .mmi; or tmp1=tmp1,tmp5 // ROTATE(a,5)
135 mux2 tmp6=$a,0x44 };; // see b in next iteration
136{ .mii; add $e=$e,tmp1 // e+=ROTATE(a,5)
137 shrp $Xn=$Xn,$Xn,31 // ROTATE(x[0]^x[2]^x[8]^x[13],1)
138 nop.i 0 };;
139
140___
141}
142
143sub BODY_20_39 {
144local *code=shift;
145my ($i,$a,$b,$c,$d,$e,$Konst)=@_;
146 $Konst = $K_20_39 if (!defined($Konst));
147my $j=$i+1;
148my $Xn=@X[$j%16];
149
150if ($i<79) {
151$code.=<<___;
152{ .mib; add $e=$e,$Konst // e+=K_XX_XX
153 dep.z tmp5=$a,5,27 } // a<<5
154{ .mib; xor tmp0=$c,$b
155 xor $Xn=$Xn,$X[($j+2)%16] };; // forward Xupdate
156{ .mib; add $e=$e,$X[$i%16] // e+=Xupdate
157 extr.u tmp1=$a,27,5 } // a>>27
158{ .mib; xor tmp0=tmp0,$d // F_20_39(b,c,d)=b^c^d
159 xor $Xn=$Xn,$X[($j+8)%16] };; // forward Xupdate
160{ .mmi; add $e=$e,tmp0 // e+=F_20_39(b,c,d)
161 xor $Xn=$Xn,$X[($j+13)%16] // forward Xupdate
162 shrp $b=tmp6,tmp6,2 } // b=ROTATE(b,30)
163{ .mmi; or tmp1=tmp1,tmp5 // ROTATE(a,5)
164 mux2 tmp6=$a,0x44 };; // see b in next iteration
165{ .mii; add $e=$e,tmp1 // e+=ROTATE(a,5)
166 shrp $Xn=$Xn,$Xn,31 // ROTATE(x[0]^x[2]^x[8]^x[13],1)
167 nop.i 0 };;
168
169___
170}
171else {
172$code.=<<___;
173{ .mib; add $e=$e,$Konst // e+=K_60_79
174 dep.z tmp5=$a,5,27 } // a<<5
175{ .mib; xor tmp0=$c,$b
176 add $h1=$h1,$a };; // wrap up
177{ .mib; add $e=$e,$X[$i%16] // e+=Xupdate
178 extr.u tmp1=$a,27,5 } // a>>27
179{ .mib; xor tmp0=tmp0,$d // F_20_39(b,c,d)=b^c^d
180 add $h3=$h3,$c };; // wrap up
181{ .mmi; add $e=$e,tmp0 // e+=F_20_39(b,c,d)
182 or tmp1=tmp1,tmp5 // ROTATE(a,5)
183 shrp $b=tmp6,tmp6,2 };; // b=ROTATE(b,30) ;;?
184{ .mmi; add $e=$e,tmp1 // e+=ROTATE(a,5)
185 add tmp3=1,inp // used in unaligned codepath
186 add $h4=$h4,$d };; // wrap up
187
188___
189}
190}
191
192sub BODY_40_59 {
193local *code=shift;
194my ($i,$a,$b,$c,$d,$e)=@_;
195my $j=$i+1;
196my $Xn=@X[$j%16];
197
198$code.=<<___;
199{ .mib; add $e=$e,$K_40_59 // e+=K_40_59
200 dep.z tmp5=$a,5,27 } // a<<5
201{ .mib; and tmp1=$c,$d
202 xor tmp0=$c,$d };;
203{ .mmi; add $e=$e,$X[$i%16] // e+=Xupdate
204 add tmp5=tmp5,tmp1 // a<<5+(c&d)
205 extr.u tmp1=$a,27,5 } // a>>27
206{ .mmi; and tmp0=tmp0,$b
207 xor $Xn=$Xn,$X[($j+2)%16] // forward Xupdate
208 xor tmp3=$X[($j+8)%16],$X[($j+13)%16] };; // forward Xupdate
209{ .mmi; add $e=$e,tmp0 // e+=b&(c^d)
210 add tmp5=tmp5,tmp1 // ROTATE(a,5)+(c&d)
211 shrp $b=tmp6,tmp6,2 } // b=ROTATE(b,30)
212{ .mmi; xor $Xn=$Xn,tmp3
213 mux2 tmp6=$a,0x44 };; // see b in next iteration
214{ .mii; add $e=$e,tmp5 // e+=ROTATE(a,5)+(c&d)
215 shrp $Xn=$Xn,$Xn,31 // ROTATE(x[0]^x[2]^x[8]^x[13],1)
216 nop.i 0x0 };;
217
218___
219}
220sub BODY_60_79 { &BODY_20_39(@_,$K_60_79); }
221
222$code.=<<___;
223.text
224
225tmp0=r8;
226tmp1=r9;
227tmp2=r10;
228tmp3=r11;
229ctx=r32; // in0
230inp=r33; // in1
231
232// void sha1_block_data_order(SHA_CTX *c,const void *p,size_t num);
233.global sha1_block_data_order#
234.proc sha1_block_data_order#
235.align 32
236sha1_block_data_order:
237 .prologue
238{ .mmi; alloc tmp1=ar.pfs,3,14,0,0
239 $ADDP tmp0=4,ctx
240 .save ar.lc,r3
241 mov r3=ar.lc }
242{ .mmi; $ADDP ctx=0,ctx
243 $ADDP inp=0,inp
244 mov r2=pr };;
245tmp4=in2;
246tmp5=loc12;
247tmp6=loc13;
248 .body
249{ .mlx; ld4 $h0=[ctx],8
250 movl $K_00_19=0x5a827999 }
251{ .mlx; ld4 $h1=[tmp0],8
252 movl $K_20_39=0x6ed9eba1 };;
253{ .mlx; ld4 $h2=[ctx],8
254 movl $K_40_59=0x8f1bbcdc }
255{ .mlx; ld4 $h3=[tmp0]
256 movl $K_60_79=0xca62c1d6 };;
257{ .mmi; ld4 $h4=[ctx],-16
258 add in2=-1,in2 // adjust num for ar.lc
259 mov ar.ec=1 };;
260{ .mmi; nop.m 0
261 add tmp3=1,inp
262 mov ar.lc=in2 };; // brp.loop.imp: too far
263
264.Ldtop:
265{ .mmi; mov $A=$h0
266 mov $B=$h1
267 mux2 tmp6=$h1,0x44 }
268{ .mmi; mov $C=$h2
269 mov $D=$h3
270 mov $E=$h4 };;
271
272___
273
274{ my $i;
275 my @V=($A,$B,$C,$D,$E);
276
277 for($i=0;$i<16;$i++) { &BODY_00_15(\$code,$i,@V); unshift(@V,pop(@V)); }
278 for(;$i<20;$i++) { &BODY_16_19(\$code,$i,@V); unshift(@V,pop(@V)); }
279 for(;$i<40;$i++) { &BODY_20_39(\$code,$i,@V); unshift(@V,pop(@V)); }
280 for(;$i<60;$i++) { &BODY_40_59(\$code,$i,@V); unshift(@V,pop(@V)); }
281 for(;$i<80;$i++) { &BODY_60_79(\$code,$i,@V); unshift(@V,pop(@V)); }
282
283 (($V[0] eq $A) and ($V[4] eq $E)) or die; # double-check
284}
285
286$code.=<<___;
287{ .mmb; add $h0=$h0,$A
288 add $h2=$h2,$C
289 br.ctop.dptk.many .Ldtop };;
290.Ldend:
291{ .mmi; add tmp0=4,ctx
292 mov ar.lc=r3 };;
293{ .mmi; st4 [ctx]=$h0,8
294 st4 [tmp0]=$h1,8 };;
295{ .mmi; st4 [ctx]=$h2,8
296 st4 [tmp0]=$h3 };;
297{ .mib; st4 [ctx]=$h4,-16
298 mov pr=r2,0x1ffff
299 br.ret.sptk.many b0 };;
300.endp sha1_block_data_order#
301stringz "SHA1 block transform for IA64, CRYPTOGAMS by <appro\@openssl.org>"
302___
303
304$output=shift and open STDOUT,">$output";
305print $code;
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-12-26 09:30:41 +0000