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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# SHA256/512_Transform for Itanium.
11#
12# sha512_block runs in 1003 cycles on Itanium 2, which is almost 50%
13# faster than gcc and >60%(!) faster than code generated by HP-UX
14# compiler (yes, HP-UX is generating slower code, because unlike gcc,
15# it failed to deploy "shift right pair," 'shrp' instruction, which
16# substitutes for 64-bit rotate).
17#
18# 924 cycles long sha256_block outperforms gcc by over factor of 2(!)
19# and HP-UX compiler - by >40% (yes, gcc won sha512_block, but lost
20# this one big time). Note that "formally" 924 is about 100 cycles
21# too much. I mean it's 64 32-bit rounds vs. 80 virtually identical
22# 64-bit ones and 1003*64/80 gives 802. Extra cycles, 2 per round,
23# are spent on extra work to provide for 32-bit rotations. 32-bit
24# rotations are still handled by 'shrp' instruction and for this
25# reason lower 32 bits are deposited to upper half of 64-bit register
26# prior 'shrp' issue. And in order to minimize the amount of such
27# operations, X[16] values are *maintained* with copies of lower
28# halves in upper halves, which is why you'll spot such instructions
29# as custom 'mux2', "parallel 32-bit add," 'padd4' and "parallel
30# 32-bit unsigned right shift," 'pshr4.u' instructions here.
31#
32# Rules of engagement.
33#
34# There is only one integer shifter meaning that if I have two rotate,
35# deposit or extract instructions in adjacent bundles, they shall
36# split [at run-time if they have to]. But note that variable and
37# parallel shifts are performed by multi-media ALU and *are* pairable
38# with rotates [and alike]. On the backside MMALU is rather slow: it
39# takes 2 extra cycles before the result of integer operation is
40# available *to* MMALU and 2(*) extra cycles before the result of MM
41# operation is available "back" *to* integer ALU, not to mention that
42# MMALU itself has 2 cycles latency. However! I explicitly scheduled
43# these MM instructions to avoid MM stalls, so that all these extra
44# latencies get "hidden" in instruction-level parallelism.
45#
46# (*) 2 cycles on Itanium 1 and 1 cycle on Itanium 2. But I schedule
47# for 2 in order to provide for best *overall* performance,
48# because on Itanium 1 stall on MM result is accompanied by
49# pipeline flush, which takes 6 cycles:-(
50#
51# Resulting performance numbers for 900MHz Itanium 2 system:
52#
53# The 'numbers' are in 1000s of bytes per second processed.
54# type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes
55# sha1(*) 6210.14k 20376.30k 52447.83k 85870.05k 105478.12k
56# sha256 7476.45k 20572.05k 41538.34k 56062.29k 62093.18k
57# sha512 4996.56k 20026.28k 47597.20k 85278.79k 111501.31k
58#
59# (*) SHA1 numbers are for HP-UX compiler and are presented purely
60# for reference purposes. I bet it can improved too...
61#
62# To generate code, pass the file name with either 256 or 512 in its
63# name and compiler flags.
64
65$output=shift;
66
67if ($output =~ /512.*\.[s|asm]/) {
68 $SZ=8;
69 $BITS=8*$SZ;
70 $LDW="ld8";
71 $STW="st8";
72 $ADD="add";
73 $SHRU="shr.u";
74 $TABLE="K512";
75 $func="sha512_block_data_order";
76 @Sigma0=(28,34,39);
77 @Sigma1=(14,18,41);
78 @sigma0=(1, 8, 7);
79 @sigma1=(19,61, 6);
80 $rounds=80;
81} elsif ($output =~ /256.*\.[s|asm]/) {
82 $SZ=4;
83 $BITS=8*$SZ;
84 $LDW="ld4";
85 $STW="st4";
86 $ADD="padd4";
87 $SHRU="pshr4.u";
88 $TABLE="K256";
89 $func="sha256_block_data_order";
90 @Sigma0=( 2,13,22);
91 @Sigma1=( 6,11,25);
92 @sigma0=( 7,18, 3);
93 @sigma1=(17,19,10);
94 $rounds=64;
95} else { die "nonsense $output"; }
96
97open STDOUT,">$output" || die "can't open $output: $!";
98
99if ($^O eq "hpux") {
100 $ADDP="addp4";
101 for (@ARGV) { $ADDP="add" if (/[\+DD|\-mlp]64/); }
102} else { $ADDP="add"; }
103for (@ARGV) { $big_endian=1 if (/\-DB_ENDIAN/);
104 $big_endian=0 if (/\-DL_ENDIAN/); }
105if (!defined($big_endian))
106 { $big_endian=(unpack('L',pack('N',1))==1); }
107
108$code=<<___;
109.ident \"$output, version 1.1\"
110.ident \"IA-64 ISA artwork by Andy Polyakov <appro\@fy.chalmers.se>\"
111.explicit
112.text
113
114pfssave=r2;
115lcsave=r3;
116prsave=r14;
117K=r15;
118A=r16; B=r17; C=r18; D=r19;
119E=r20; F=r21; G=r22; H=r23;
120T1=r24; T2=r25;
121s0=r26; s1=r27; t0=r28; t1=r29;
122Ktbl=r30;
123ctx=r31; // 1st arg
124input=r48; // 2nd arg
125num=r49; // 3rd arg
126sgm0=r50; sgm1=r51; // small constants
127A_=r54; B_=r55; C_=r56; D_=r57;
128E_=r58; F_=r59; G_=r60; H_=r61;
129
130// void $func (SHA_CTX *ctx, const void *in,size_t num[,int host])
131.global $func#
132.proc $func#
133.align 32
134$func:
135 .prologue
136 .save ar.pfs,pfssave
137{ .mmi; alloc pfssave=ar.pfs,3,27,0,16
138 $ADDP ctx=0,r32 // 1st arg
139 .save ar.lc,lcsave
140 mov lcsave=ar.lc }
141{ .mmi; $ADDP input=0,r33 // 2nd arg
142 mov num=r34 // 3rd arg
143 .save pr,prsave
144 mov prsave=pr };;
145
146 .body
147{ .mib; add r8=0*$SZ,ctx
148 add r9=1*$SZ,ctx
149 brp.loop.imp .L_first16,.L_first16_end-16 }
150{ .mib; add r10=2*$SZ,ctx
151 add r11=3*$SZ,ctx
152 brp.loop.imp .L_rest,.L_rest_end-16 };;
153
154// load A-H
155.Lpic_point:
156{ .mmi; $LDW A_=[r8],4*$SZ
157 $LDW B_=[r9],4*$SZ
158 mov Ktbl=ip }
159{ .mmi; $LDW C_=[r10],4*$SZ
160 $LDW D_=[r11],4*$SZ
161 mov sgm0=$sigma0[2] };;
162{ .mmi; $LDW E_=[r8]
163 $LDW F_=[r9]
164 add Ktbl=($TABLE#-.Lpic_point),Ktbl }
165{ .mmi; $LDW G_=[r10]
166 $LDW H_=[r11]
167 cmp.ne p0,p16=0,r0 };; // used in sha256_block
168___
169$code.=<<___ if ($BITS==64);
170{ .mii; and r8=7,input
171 and input=~7,input;;
172 cmp.eq p9,p0=1,r8 }
173{ .mmi; cmp.eq p10,p0=2,r8
174 cmp.eq p11,p0=3,r8
175 cmp.eq p12,p0=4,r8 }
176{ .mmi; cmp.eq p13,p0=5,r8
177 cmp.eq p14,p0=6,r8
178 cmp.eq p15,p0=7,r8 };;
179___
180$code.=<<___;
181.L_outer:
182.rotr X[16]
183{ .mmi; mov A=A_
184 mov B=B_
185 mov ar.lc=14 }
186{ .mmi; mov C=C_
187 mov D=D_
188 mov E=E_ }
189{ .mmi; mov F=F_
190 mov G=G_
191 mov ar.ec=2 }
192{ .mmi; ld1 X[15]=[input],$SZ // eliminated in 64-bit
193 mov H=H_
194 mov sgm1=$sigma1[2] };;
195
196___
197$t0="t0", $t1="t1", $code.=<<___ if ($BITS==32);
198.align 32
199.L_first16:
200{ .mmi; add r9=1-$SZ,input
201 add r10=2-$SZ,input
202 add r11=3-$SZ,input };;
203{ .mmi; ld1 r9=[r9]
204 ld1 r10=[r10]
205 dep.z $t1=E,32,32 }
206{ .mmi; $LDW K=[Ktbl],$SZ
207 ld1 r11=[r11]
208 zxt4 E=E };;
209{ .mii; or $t1=$t1,E
210 dep X[15]=X[15],r9,8,8
211 dep r11=r10,r11,8,8 };;
212{ .mmi; and T1=F,E
213 and T2=A,B
214 dep X[15]=X[15],r11,16,16 }
215{ .mmi; andcm r8=G,E
216 and r9=A,C
217 mux2 $t0=A,0x44 };; // copy lower half to upper
218{ .mmi; (p16) ld1 X[15-1]=[input],$SZ // prefetch
219 xor T1=T1,r8 // T1=((e & f) ^ (~e & g))
220 _rotr r11=$t1,$Sigma1[0] } // ROTR(e,14)
221{ .mib; and r10=B,C
222 xor T2=T2,r9 };;
223___
224$t0="A", $t1="E", $code.=<<___ if ($BITS==64);
225// in 64-bit mode I load whole X[16] at once and take care of alignment...
226{ .mmi; add r8=1*$SZ,input
227 add r9=2*$SZ,input
228 add r10=3*$SZ,input };;
229{ .mmb; $LDW X[15]=[input],4*$SZ
230 $LDW X[14]=[r8],4*$SZ
231(p9) br.cond.dpnt.many .L1byte };;
232{ .mmb; $LDW X[13]=[r9],4*$SZ
233 $LDW X[12]=[r10],4*$SZ
234(p10) br.cond.dpnt.many .L2byte };;
235{ .mmb; $LDW X[11]=[input],4*$SZ
236 $LDW X[10]=[r8],4*$SZ
237(p11) br.cond.dpnt.many .L3byte };;
238{ .mmb; $LDW X[ 9]=[r9],4*$SZ
239 $LDW X[ 8]=[r10],4*$SZ
240(p12) br.cond.dpnt.many .L4byte };;
241{ .mmb; $LDW X[ 7]=[input],4*$SZ
242 $LDW X[ 6]=[r8],4*$SZ
243(p13) br.cond.dpnt.many .L5byte };;
244{ .mmb; $LDW X[ 5]=[r9],4*$SZ
245 $LDW X[ 4]=[r10],4*$SZ
246(p14) br.cond.dpnt.many .L6byte };;
247{ .mmb; $LDW X[ 3]=[input],4*$SZ
248 $LDW X[ 2]=[r8],4*$SZ
249(p15) br.cond.dpnt.many .L7byte };;
250{ .mmb; $LDW X[ 1]=[r9],4*$SZ
251 $LDW X[ 0]=[r10],4*$SZ
252 br.many .L_first16 };;
253.L1byte:
254{ .mmi; $LDW X[13]=[r9],4*$SZ
255 $LDW X[12]=[r10],4*$SZ
256 shrp X[15]=X[15],X[14],56 };;
257{ .mmi; $LDW X[11]=[input],4*$SZ
258 $LDW X[10]=[r8],4*$SZ
259 shrp X[14]=X[14],X[13],56 }
260{ .mmi; $LDW X[ 9]=[r9],4*$SZ
261 $LDW X[ 8]=[r10],4*$SZ
262 shrp X[13]=X[13],X[12],56 };;
263{ .mmi; $LDW X[ 7]=[input],4*$SZ
264 $LDW X[ 6]=[r8],4*$SZ
265 shrp X[12]=X[12],X[11],56 }
266{ .mmi; $LDW X[ 5]=[r9],4*$SZ
267 $LDW X[ 4]=[r10],4*$SZ
268 shrp X[11]=X[11],X[10],56 };;
269{ .mmi; $LDW X[ 3]=[input],4*$SZ
270 $LDW X[ 2]=[r8],4*$SZ
271 shrp X[10]=X[10],X[ 9],56 }
272{ .mmi; $LDW X[ 1]=[r9],4*$SZ
273 $LDW X[ 0]=[r10],4*$SZ
274 shrp X[ 9]=X[ 9],X[ 8],56 };;
275{ .mii; $LDW T1=[input]
276 shrp X[ 8]=X[ 8],X[ 7],56
277 shrp X[ 7]=X[ 7],X[ 6],56 }
278{ .mii; shrp X[ 6]=X[ 6],X[ 5],56
279 shrp X[ 5]=X[ 5],X[ 4],56 };;
280{ .mii; shrp X[ 4]=X[ 4],X[ 3],56
281 shrp X[ 3]=X[ 3],X[ 2],56 }
282{ .mii; shrp X[ 2]=X[ 2],X[ 1],56
283 shrp X[ 1]=X[ 1],X[ 0],56 }
284{ .mib; shrp X[ 0]=X[ 0],T1,56
285 br.many .L_first16 };;
286.L2byte:
287{ .mmi; $LDW X[11]=[input],4*$SZ
288 $LDW X[10]=[r8],4*$SZ
289 shrp X[15]=X[15],X[14],48 }
290{ .mmi; $LDW X[ 9]=[r9],4*$SZ
291 $LDW X[ 8]=[r10],4*$SZ
292 shrp X[14]=X[14],X[13],48 };;
293{ .mmi; $LDW X[ 7]=[input],4*$SZ
294 $LDW X[ 6]=[r8],4*$SZ
295 shrp X[13]=X[13],X[12],48 }
296{ .mmi; $LDW X[ 5]=[r9],4*$SZ
297 $LDW X[ 4]=[r10],4*$SZ
298 shrp X[12]=X[12],X[11],48 };;
299{ .mmi; $LDW X[ 3]=[input],4*$SZ
300 $LDW X[ 2]=[r8],4*$SZ
301 shrp X[11]=X[11],X[10],48 }
302{ .mmi; $LDW X[ 1]=[r9],4*$SZ
303 $LDW X[ 0]=[r10],4*$SZ
304 shrp X[10]=X[10],X[ 9],48 };;
305{ .mii; $LDW T1=[input]
306 shrp X[ 9]=X[ 9],X[ 8],48
307 shrp X[ 8]=X[ 8],X[ 7],48 }
308{ .mii; shrp X[ 7]=X[ 7],X[ 6],48
309 shrp X[ 6]=X[ 6],X[ 5],48 };;
310{ .mii; shrp X[ 5]=X[ 5],X[ 4],48
311 shrp X[ 4]=X[ 4],X[ 3],48 }
312{ .mii; shrp X[ 3]=X[ 3],X[ 2],48
313 shrp X[ 2]=X[ 2],X[ 1],48 }
314{ .mii; shrp X[ 1]=X[ 1],X[ 0],48
315 shrp X[ 0]=X[ 0],T1,48 }
316{ .mfb; br.many .L_first16 };;
317.L3byte:
318{ .mmi; $LDW X[ 9]=[r9],4*$SZ
319 $LDW X[ 8]=[r10],4*$SZ
320 shrp X[15]=X[15],X[14],40 };;
321{ .mmi; $LDW X[ 7]=[input],4*$SZ
322 $LDW X[ 6]=[r8],4*$SZ
323 shrp X[14]=X[14],X[13],40 }
324{ .mmi; $LDW X[ 5]=[r9],4*$SZ
325 $LDW X[ 4]=[r10],4*$SZ
326 shrp X[13]=X[13],X[12],40 };;
327{ .mmi; $LDW X[ 3]=[input],4*$SZ
328 $LDW X[ 2]=[r8],4*$SZ
329 shrp X[12]=X[12],X[11],40 }
330{ .mmi; $LDW X[ 1]=[r9],4*$SZ
331 $LDW X[ 0]=[r10],4*$SZ
332 shrp X[11]=X[11],X[10],40 };;
333{ .mii; $LDW T1=[input]
334 shrp X[10]=X[10],X[ 9],40
335 shrp X[ 9]=X[ 9],X[ 8],40 }
336{ .mii; shrp X[ 8]=X[ 8],X[ 7],40
337 shrp X[ 7]=X[ 7],X[ 6],40 };;
338{ .mii; shrp X[ 6]=X[ 6],X[ 5],40
339 shrp X[ 5]=X[ 5],X[ 4],40 }
340{ .mii; shrp X[ 4]=X[ 4],X[ 3],40
341 shrp X[ 3]=X[ 3],X[ 2],40 }
342{ .mii; shrp X[ 2]=X[ 2],X[ 1],40
343 shrp X[ 1]=X[ 1],X[ 0],40 }
344{ .mib; shrp X[ 0]=X[ 0],T1,40
345 br.many .L_first16 };;
346.L4byte:
347{ .mmi; $LDW X[ 7]=[input],4*$SZ
348 $LDW X[ 6]=[r8],4*$SZ
349 shrp X[15]=X[15],X[14],32 }
350{ .mmi; $LDW X[ 5]=[r9],4*$SZ
351 $LDW X[ 4]=[r10],4*$SZ
352 shrp X[14]=X[14],X[13],32 };;
353{ .mmi; $LDW X[ 3]=[input],4*$SZ
354 $LDW X[ 2]=[r8],4*$SZ
355 shrp X[13]=X[13],X[12],32 }
356{ .mmi; $LDW X[ 1]=[r9],4*$SZ
357 $LDW X[ 0]=[r10],4*$SZ
358 shrp X[12]=X[12],X[11],32 };;
359{ .mii; $LDW T1=[input]
360 shrp X[11]=X[11],X[10],32
361 shrp X[10]=X[10],X[ 9],32 }
362{ .mii; shrp X[ 9]=X[ 9],X[ 8],32
363 shrp X[ 8]=X[ 8],X[ 7],32 };;
364{ .mii; shrp X[ 7]=X[ 7],X[ 6],32
365 shrp X[ 6]=X[ 6],X[ 5],32 }
366{ .mii; shrp X[ 5]=X[ 5],X[ 4],32
367 shrp X[ 4]=X[ 4],X[ 3],32 }
368{ .mii; shrp X[ 3]=X[ 3],X[ 2],32
369 shrp X[ 2]=X[ 2],X[ 1],32 }
370{ .mii; shrp X[ 1]=X[ 1],X[ 0],32
371 shrp X[ 0]=X[ 0],T1,32 }
372{ .mfb; br.many .L_first16 };;
373.L5byte:
374{ .mmi; $LDW X[ 5]=[r9],4*$SZ
375 $LDW X[ 4]=[r10],4*$SZ
376 shrp X[15]=X[15],X[14],24 };;
377{ .mmi; $LDW X[ 3]=[input],4*$SZ
378 $LDW X[ 2]=[r8],4*$SZ
379 shrp X[14]=X[14],X[13],24 }
380{ .mmi; $LDW X[ 1]=[r9],4*$SZ
381 $LDW X[ 0]=[r10],4*$SZ
382 shrp X[13]=X[13],X[12],24 };;
383{ .mii; $LDW T1=[input]
384 shrp X[12]=X[12],X[11],24
385 shrp X[11]=X[11],X[10],24 }
386{ .mii; shrp X[10]=X[10],X[ 9],24
387 shrp X[ 9]=X[ 9],X[ 8],24 };;
388{ .mii; shrp X[ 8]=X[ 8],X[ 7],24
389 shrp X[ 7]=X[ 7],X[ 6],24 }
390{ .mii; shrp X[ 6]=X[ 6],X[ 5],24
391 shrp X[ 5]=X[ 5],X[ 4],24 }
392{ .mii; shrp X[ 4]=X[ 4],X[ 3],24
393 shrp X[ 3]=X[ 3],X[ 2],24 }
394{ .mii; shrp X[ 2]=X[ 2],X[ 1],24
395 shrp X[ 1]=X[ 1],X[ 0],24 }
396{ .mib; shrp X[ 0]=X[ 0],T1,24
397 br.many .L_first16 };;
398.L6byte:
399{ .mmi; $LDW X[ 3]=[input],4*$SZ
400 $LDW X[ 2]=[r8],4*$SZ
401 shrp X[15]=X[15],X[14],16 }
402{ .mmi; $LDW X[ 1]=[r9],4*$SZ
403 $LDW X[ 0]=[r10],4*$SZ
404 shrp X[14]=X[14],X[13],16 };;
405{ .mii; $LDW T1=[input]
406 shrp X[13]=X[13],X[12],16
407 shrp X[12]=X[12],X[11],16 }
408{ .mii; shrp X[11]=X[11],X[10],16
409 shrp X[10]=X[10],X[ 9],16 };;
410{ .mii; shrp X[ 9]=X[ 9],X[ 8],16
411 shrp X[ 8]=X[ 8],X[ 7],16 }
412{ .mii; shrp X[ 7]=X[ 7],X[ 6],16
413 shrp X[ 6]=X[ 6],X[ 5],16 }
414{ .mii; shrp X[ 5]=X[ 5],X[ 4],16
415 shrp X[ 4]=X[ 4],X[ 3],16 }
416{ .mii; shrp X[ 3]=X[ 3],X[ 2],16
417 shrp X[ 2]=X[ 2],X[ 1],16 }
418{ .mii; shrp X[ 1]=X[ 1],X[ 0],16
419 shrp X[ 0]=X[ 0],T1,16 }
420{ .mfb; br.many .L_first16 };;
421.L7byte:
422{ .mmi; $LDW X[ 1]=[r9],4*$SZ
423 $LDW X[ 0]=[r10],4*$SZ
424 shrp X[15]=X[15],X[14],8 };;
425{ .mii; $LDW T1=[input]
426 shrp X[14]=X[14],X[13],8
427 shrp X[13]=X[13],X[12],8 }
428{ .mii; shrp X[12]=X[12],X[11],8
429 shrp X[11]=X[11],X[10],8 };;
430{ .mii; shrp X[10]=X[10],X[ 9],8
431 shrp X[ 9]=X[ 9],X[ 8],8 }
432{ .mii; shrp X[ 8]=X[ 8],X[ 7],8
433 shrp X[ 7]=X[ 7],X[ 6],8 }
434{ .mii; shrp X[ 6]=X[ 6],X[ 5],8
435 shrp X[ 5]=X[ 5],X[ 4],8 }
436{ .mii; shrp X[ 4]=X[ 4],X[ 3],8
437 shrp X[ 3]=X[ 3],X[ 2],8 }
438{ .mii; shrp X[ 2]=X[ 2],X[ 1],8
439 shrp X[ 1]=X[ 1],X[ 0],8 }
440{ .mib; shrp X[ 0]=X[ 0],T1,8
441 br.many .L_first16 };;
442
443.align 32
444.L_first16:
445{ .mmi; $LDW K=[Ktbl],$SZ
446 and T1=F,E
447 and T2=A,B }
448{ .mmi; //$LDW X[15]=[input],$SZ // X[i]=*input++
449 andcm r8=G,E
450 and r9=A,C };;
451{ .mmi; xor T1=T1,r8 //T1=((e & f) ^ (~e & g))
452 and r10=B,C
453 _rotr r11=$t1,$Sigma1[0] } // ROTR(e,14)
454{ .mmi; xor T2=T2,r9
455 mux1 X[15]=X[15],\@rev };; // eliminated in big-endian
456___
457$code.=<<___;
458{ .mib; add T1=T1,H // T1=Ch(e,f,g)+h
459 _rotr r8=$t1,$Sigma1[1] } // ROTR(e,18)
460{ .mib; xor T2=T2,r10 // T2=((a & b) ^ (a & c) ^ (b & c))
461 mov H=G };;
462{ .mib; xor r11=r8,r11
463 _rotr r9=$t1,$Sigma1[2] } // ROTR(e,41)
464{ .mib; mov G=F
465 mov F=E };;
466{ .mib; xor r9=r9,r11 // r9=Sigma1(e)
467 _rotr r10=$t0,$Sigma0[0] } // ROTR(a,28)
468{ .mib; add T1=T1,K // T1=Ch(e,f,g)+h+K512[i]
469 mov E=D };;
470{ .mib; add T1=T1,r9 // T1+=Sigma1(e)
471 _rotr r11=$t0,$Sigma0[1] } // ROTR(a,34)
472{ .mib; mov D=C
473 mov C=B };;
474{ .mib; add T1=T1,X[15] // T1+=X[i]
475 _rotr r8=$t0,$Sigma0[2] } // ROTR(a,39)
476{ .mib; xor r10=r10,r11
477 mux2 X[15]=X[15],0x44 };; // eliminated in 64-bit
478{ .mmi; xor r10=r8,r10 // r10=Sigma0(a)
479 mov B=A
480 add A=T1,T2 };;
481{ .mib; add E=E,T1
482 add A=A,r10 // T2=Maj(a,b,c)+Sigma0(a)
483 br.ctop.sptk .L_first16 };;
484.L_first16_end:
485
486{ .mii; mov ar.lc=$rounds-17
487 mov ar.ec=1 };;
488
489.align 32
490.L_rest:
491.rotr X[16]
492{ .mib; $LDW K=[Ktbl],$SZ
493 _rotr r8=X[15-1],$sigma0[0] } // ROTR(s0,1)
494{ .mib; $ADD X[15]=X[15],X[15-9] // X[i&0xF]+=X[(i+9)&0xF]
495 $SHRU s0=X[15-1],sgm0 };; // s0=X[(i+1)&0xF]>>7
496{ .mib; and T1=F,E
497 _rotr r9=X[15-1],$sigma0[1] } // ROTR(s0,8)
498{ .mib; andcm r10=G,E
499 $SHRU s1=X[15-14],sgm1 };; // s1=X[(i+14)&0xF]>>6
500{ .mmi; xor T1=T1,r10 // T1=((e & f) ^ (~e & g))
501 xor r9=r8,r9
502 _rotr r10=X[15-14],$sigma1[0] };;// ROTR(s1,19)
503{ .mib; and T2=A,B
504 _rotr r11=X[15-14],$sigma1[1] }// ROTR(s1,61)
505{ .mib; and r8=A,C };;
506___
507$t0="t0", $t1="t1", $code.=<<___ if ($BITS==32);
508// I adhere to mmi; in order to hold Itanium 1 back and avoid 6 cycle
509// pipeline flush in last bundle. Note that even on Itanium2 the
510// latter stalls for one clock cycle...
511{ .mmi; xor s0=s0,r9 // s0=sigma0(X[(i+1)&0xF])
512 dep.z $t1=E,32,32 }
513{ .mmi; xor r10=r11,r10
514 zxt4 E=E };;
515{ .mmi; or $t1=$t1,E
516 xor s1=s1,r10 // s1=sigma1(X[(i+14)&0xF])
517 mux2 $t0=A,0x44 };; // copy lower half to upper
518{ .mmi; xor T2=T2,r8
519 _rotr r9=$t1,$Sigma1[0] } // ROTR(e,14)
520{ .mmi; and r10=B,C
521 add T1=T1,H // T1=Ch(e,f,g)+h
522 $ADD X[15]=X[15],s0 };; // X[i&0xF]+=sigma0(X[(i+1)&0xF])
523___
524$t0="A", $t1="E", $code.=<<___ if ($BITS==64);
525{ .mib; xor s0=s0,r9 // s0=sigma0(X[(i+1)&0xF])
526 _rotr r9=$t1,$Sigma1[0] } // ROTR(e,14)
527{ .mib; xor r10=r11,r10
528 xor T2=T2,r8 };;
529{ .mib; xor s1=s1,r10 // s1=sigma1(X[(i+14)&0xF])
530 add T1=T1,H }
531{ .mib; and r10=B,C
532 $ADD X[15]=X[15],s0 };; // X[i&0xF]+=sigma0(X[(i+1)&0xF])
533___
534$code.=<<___;
535{ .mmi; xor T2=T2,r10 // T2=((a & b) ^ (a & c) ^ (b & c))
536 mov H=G
537 _rotr r8=$t1,$Sigma1[1] };; // ROTR(e,18)
538{ .mmi; xor r11=r8,r9
539 $ADD X[15]=X[15],s1 // X[i&0xF]+=sigma1(X[(i+14)&0xF])
540 _rotr r9=$t1,$Sigma1[2] } // ROTR(e,41)
541{ .mmi; mov G=F
542 mov F=E };;
543{ .mib; xor r9=r9,r11 // r9=Sigma1(e)
544 _rotr r10=$t0,$Sigma0[0] } // ROTR(a,28)
545{ .mib; add T1=T1,K // T1=Ch(e,f,g)+h+K512[i]
546 mov E=D };;
547{ .mib; add T1=T1,r9 // T1+=Sigma1(e)
548 _rotr r11=$t0,$Sigma0[1] } // ROTR(a,34)
549{ .mib; mov D=C
550 mov C=B };;
551{ .mmi; add T1=T1,X[15] // T1+=X[i]
552 xor r10=r10,r11
553 _rotr r8=$t0,$Sigma0[2] };; // ROTR(a,39)
554{ .mmi; xor r10=r8,r10 // r10=Sigma0(a)
555 mov B=A
556 add A=T1,T2 };;
557{ .mib; add E=E,T1
558 add A=A,r10 // T2=Maj(a,b,c)+Sigma0(a)
559 br.ctop.sptk .L_rest };;
560.L_rest_end:
561
562{ .mmi; add A_=A_,A
563 add B_=B_,B
564 add C_=C_,C }
565{ .mmi; add D_=D_,D
566 add E_=E_,E
567 cmp.ltu p16,p0=1,num };;
568{ .mmi; add F_=F_,F
569 add G_=G_,G
570 add H_=H_,H }
571{ .mmb; add Ktbl=-$SZ*$rounds,Ktbl
572(p16) add num=-1,num
573(p16) br.dptk.many .L_outer };;
574
575{ .mib; add r8=0*$SZ,ctx
576 add r9=1*$SZ,ctx }
577{ .mib; add r10=2*$SZ,ctx
578 add r11=3*$SZ,ctx };;
579{ .mmi; $STW [r8]=A_,4*$SZ
580 $STW [r9]=B_,4*$SZ
581 mov ar.lc=lcsave }
582{ .mmi; $STW [r10]=C_,4*$SZ
583 $STW [r11]=D_,4*$SZ
584 mov pr=prsave,0x1ffff };;
585{ .mmb; $STW [r8]=E_
586 $STW [r9]=F_ }
587{ .mmb; $STW [r10]=G_
588 $STW [r11]=H_
589 br.ret.sptk.many b0 };;
590.endp $func#
591___
592
593$code =~ s/\`([^\`]*)\`/eval $1/gem;
594$code =~ s/_rotr(\s+)([^=]+)=([^,]+),([0-9]+)/shrp$1$2=$3,$3,$4/gm;
595if ($BITS==64) {
596 $code =~ s/mux2(\s+)\S+/nop.i$1 0x0/gm;
597 $code =~ s/mux1(\s+)\S+/nop.i$1 0x0/gm if ($big_endian);
598 $code =~ s/(shrp\s+X\[[^=]+)=([^,]+),([^,]+),([1-9]+)/$1=$3,$2,64-$4/gm
599 if (!$big_endian);
600 $code =~ s/ld1(\s+)X\[\S+/nop.m$1 0x0/gm;
601}
602
603print $code;
604
605print<<___ if ($BITS==32);
606.align 64
607.type K256#,\@object
608K256: data4 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
609 data4 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
610 data4 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
611 data4 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
612 data4 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
613 data4 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
614 data4 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
615 data4 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
616 data4 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
617 data4 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
618 data4 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
619 data4 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
620 data4 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
621 data4 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
622 data4 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
623 data4 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
624.size K256#,$SZ*$rounds
625stringz "SHA256 block transform for IA64, CRYPTOGAMS by <appro\@openssl.org>"
626___
627print<<___ if ($BITS==64);
628.align 64
629.type K512#,\@object
630K512: data8 0x428a2f98d728ae22,0x7137449123ef65cd
631 data8 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
632 data8 0x3956c25bf348b538,0x59f111f1b605d019
633 data8 0x923f82a4af194f9b,0xab1c5ed5da6d8118
634 data8 0xd807aa98a3030242,0x12835b0145706fbe
635 data8 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
636 data8 0x72be5d74f27b896f,0x80deb1fe3b1696b1
637 data8 0x9bdc06a725c71235,0xc19bf174cf692694
638 data8 0xe49b69c19ef14ad2,0xefbe4786384f25e3
639 data8 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
640 data8 0x2de92c6f592b0275,0x4a7484aa6ea6e483
641 data8 0x5cb0a9dcbd41fbd4,0x76f988da831153b5
642 data8 0x983e5152ee66dfab,0xa831c66d2db43210
643 data8 0xb00327c898fb213f,0xbf597fc7beef0ee4
644 data8 0xc6e00bf33da88fc2,0xd5a79147930aa725
645 data8 0x06ca6351e003826f,0x142929670a0e6e70
646 data8 0x27b70a8546d22ffc,0x2e1b21385c26c926
647 data8 0x4d2c6dfc5ac42aed,0x53380d139d95b3df
648 data8 0x650a73548baf63de,0x766a0abb3c77b2a8
649 data8 0x81c2c92e47edaee6,0x92722c851482353b
650 data8 0xa2bfe8a14cf10364,0xa81a664bbc423001
651 data8 0xc24b8b70d0f89791,0xc76c51a30654be30
652 data8 0xd192e819d6ef5218,0xd69906245565a910
653 data8 0xf40e35855771202a,0x106aa07032bbd1b8
654 data8 0x19a4c116b8d2d0c8,0x1e376c085141ab53
655 data8 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
656 data8 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
657 data8 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
658 data8 0x748f82ee5defb2fc,0x78a5636f43172f60
659 data8 0x84c87814a1f0ab72,0x8cc702081a6439ec
660 data8 0x90befffa23631e28,0xa4506cebde82bde9
661 data8 0xbef9a3f7b2c67915,0xc67178f2e372532b
662 data8 0xca273eceea26619c,0xd186b8c721c0c207
663 data8 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
664 data8 0x06f067aa72176fba,0x0a637dc5a2c898a6
665 data8 0x113f9804bef90dae,0x1b710b35131c471b
666 data8 0x28db77f523047d84,0x32caab7b40c72493
667 data8 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
668 data8 0x4cc5d4becb3e42b6,0x597f299cfc657e2a
669 data8 0x5fcb6fab3ad6faec,0x6c44198c4a475817
670.size K512#,$SZ*$rounds
671stringz "SHA512 block transform for IA64, CRYPTOGAMS by <appro\@openssl.org>"
672___
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-08-03 23:48:45 +0000