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authorcvs2svn <admin@example.com>2001-04-23 15:30:26 +0000
committercvs2svn <admin@example.com>2001-04-23 15:30:26 +0000
commit5c517720d5b21a720e400586177c050d4bc95721 (patch)
tree34ec35b1061b27f8770c5ac5ee02aad558cbfc90 /src/lib/libcrypto/bn/asm/bn-586.pl
parentd2092adc32c6de492232ba39518f9091db6bc67f (diff)
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This commit was manufactured by cvs2git to create tag 'OPENBSD_2_9_BASE'.OPENBSD_2_9_BASE
Diffstat (limited to 'src/lib/libcrypto/bn/asm/bn-586.pl')
-rw-r--r--src/lib/libcrypto/bn/asm/bn-586.pl384
1 files changed, 0 insertions, 384 deletions
diff --git a/src/lib/libcrypto/bn/asm/bn-586.pl b/src/lib/libcrypto/bn/asm/bn-586.pl
deleted file mode 100644
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--- a/src/lib/libcrypto/bn/asm/bn-586.pl
+++ /dev/null
@@ -1,384 +0,0 @@
1#!/usr/local/bin/perl
2
3push(@INC,"perlasm","../../perlasm");
4require "x86asm.pl";
5
6&asm_init($ARGV[0],$0);
7
8&bn_mul_add_words("bn_mul_add_words");
9&bn_mul_words("bn_mul_words");
10&bn_sqr_words("bn_sqr_words");
11&bn_div_words("bn_div_words");
12&bn_add_words("bn_add_words");
13&bn_sub_words("bn_sub_words");
14
15&asm_finish();
16
17sub bn_mul_add_words
18 {
19 local($name)=@_;
20
21 &function_begin($name,"");
22
23 &comment("");
24 $Low="eax";
25 $High="edx";
26 $a="ebx";
27 $w="ebp";
28 $r="edi";
29 $c="esi";
30
31 &xor($c,$c); # clear carry
32 &mov($r,&wparam(0)); #
33
34 &mov("ecx",&wparam(2)); #
35 &mov($a,&wparam(1)); #
36
37 &and("ecx",0xfffffff8); # num / 8
38 &mov($w,&wparam(3)); #
39
40 &push("ecx"); # Up the stack for a tmp variable
41
42 &jz(&label("maw_finish"));
43
44 &set_label("maw_loop",0);
45
46 &mov(&swtmp(0),"ecx"); #
47
48 for ($i=0; $i<32; $i+=4)
49 {
50 &comment("Round $i");
51
52 &mov("eax",&DWP($i,$a,"",0)); # *a
53 &mul($w); # *a * w
54 &add("eax",$c); # L(t)+= *r
55 &mov($c,&DWP($i,$r,"",0)); # L(t)+= *r
56 &adc("edx",0); # H(t)+=carry
57 &add("eax",$c); # L(t)+=c
58 &adc("edx",0); # H(t)+=carry
59 &mov(&DWP($i,$r,"",0),"eax"); # *r= L(t);
60 &mov($c,"edx"); # c= H(t);
61 }
62
63 &comment("");
64 &mov("ecx",&swtmp(0)); #
65 &add($a,32);
66 &add($r,32);
67 &sub("ecx",8);
68 &jnz(&label("maw_loop"));
69
70 &set_label("maw_finish",0);
71 &mov("ecx",&wparam(2)); # get num
72 &and("ecx",7);
73 &jnz(&label("maw_finish2")); # helps branch prediction
74 &jmp(&label("maw_end"));
75
76 &set_label("maw_finish2",1);
77 for ($i=0; $i<7; $i++)
78 {
79 &comment("Tail Round $i");
80 &mov("eax",&DWP($i*4,$a,"",0));# *a
81 &mul($w); # *a * w
82 &add("eax",$c); # L(t)+=c
83 &mov($c,&DWP($i*4,$r,"",0)); # L(t)+= *r
84 &adc("edx",0); # H(t)+=carry
85 &add("eax",$c);
86 &adc("edx",0); # H(t)+=carry
87 &dec("ecx") if ($i != 7-1);
88 &mov(&DWP($i*4,$r,"",0),"eax"); # *r= L(t);
89 &mov($c,"edx"); # c= H(t);
90 &jz(&label("maw_end")) if ($i != 7-1);
91 }
92 &set_label("maw_end",0);
93 &mov("eax",$c);
94
95 &pop("ecx"); # clear variable from
96
97 &function_end($name);
98 }
99
100sub bn_mul_words
101 {
102 local($name)=@_;
103
104 &function_begin($name,"");
105
106 &comment("");
107 $Low="eax";
108 $High="edx";
109 $a="ebx";
110 $w="ecx";
111 $r="edi";
112 $c="esi";
113 $num="ebp";
114
115 &xor($c,$c); # clear carry
116 &mov($r,&wparam(0)); #
117 &mov($a,&wparam(1)); #
118 &mov($num,&wparam(2)); #
119 &mov($w,&wparam(3)); #
120
121 &and($num,0xfffffff8); # num / 8
122 &jz(&label("mw_finish"));
123
124 &set_label("mw_loop",0);
125 for ($i=0; $i<32; $i+=4)
126 {
127 &comment("Round $i");
128
129 &mov("eax",&DWP($i,$a,"",0)); # *a
130 &mul($w); # *a * w
131 &add("eax",$c); # L(t)+=c
132 # XXX
133
134 &adc("edx",0); # H(t)+=carry
135 &mov(&DWP($i,$r,"",0),"eax"); # *r= L(t);
136
137 &mov($c,"edx"); # c= H(t);
138 }
139
140 &comment("");
141 &add($a,32);
142 &add($r,32);
143 &sub($num,8);
144 &jz(&label("mw_finish"));
145 &jmp(&label("mw_loop"));
146
147 &set_label("mw_finish",0);
148 &mov($num,&wparam(2)); # get num
149 &and($num,7);
150 &jnz(&label("mw_finish2"));
151 &jmp(&label("mw_end"));
152
153 &set_label("mw_finish2",1);
154 for ($i=0; $i<7; $i++)
155 {
156 &comment("Tail Round $i");
157 &mov("eax",&DWP($i*4,$a,"",0));# *a
158 &mul($w); # *a * w
159 &add("eax",$c); # L(t)+=c
160 # XXX
161 &adc("edx",0); # H(t)+=carry
162 &mov(&DWP($i*4,$r,"",0),"eax");# *r= L(t);
163 &mov($c,"edx"); # c= H(t);
164 &dec($num) if ($i != 7-1);
165 &jz(&label("mw_end")) if ($i != 7-1);
166 }
167 &set_label("mw_end",0);
168 &mov("eax",$c);
169
170 &function_end($name);
171 }
172
173sub bn_sqr_words
174 {
175 local($name)=@_;
176
177 &function_begin($name,"");
178
179 &comment("");
180 $r="esi";
181 $a="edi";
182 $num="ebx";
183
184 &mov($r,&wparam(0)); #
185 &mov($a,&wparam(1)); #
186 &mov($num,&wparam(2)); #
187
188 &and($num,0xfffffff8); # num / 8
189 &jz(&label("sw_finish"));
190
191 &set_label("sw_loop",0);
192 for ($i=0; $i<32; $i+=4)
193 {
194 &comment("Round $i");
195 &mov("eax",&DWP($i,$a,"",0)); # *a
196 # XXX
197 &mul("eax"); # *a * *a
198 &mov(&DWP($i*2,$r,"",0),"eax"); #
199 &mov(&DWP($i*2+4,$r,"",0),"edx");#
200 }
201
202 &comment("");
203 &add($a,32);
204 &add($r,64);
205 &sub($num,8);
206 &jnz(&label("sw_loop"));
207
208 &set_label("sw_finish",0);
209 &mov($num,&wparam(2)); # get num
210 &and($num,7);
211 &jz(&label("sw_end"));
212
213 for ($i=0; $i<7; $i++)
214 {
215 &comment("Tail Round $i");
216 &mov("eax",&DWP($i*4,$a,"",0)); # *a
217 # XXX
218 &mul("eax"); # *a * *a
219 &mov(&DWP($i*8,$r,"",0),"eax"); #
220 &dec($num) if ($i != 7-1);
221 &mov(&DWP($i*8+4,$r,"",0),"edx");
222 &jz(&label("sw_end")) if ($i != 7-1);
223 }
224 &set_label("sw_end",0);
225
226 &function_end($name);
227 }
228
229sub bn_div_words
230 {
231 local($name)=@_;
232
233 &function_begin($name,"");
234 &mov("edx",&wparam(0)); #
235 &mov("eax",&wparam(1)); #
236 &mov("ebx",&wparam(2)); #
237 &div("ebx");
238 &function_end($name);
239 }
240
241sub bn_add_words
242 {
243 local($name)=@_;
244
245 &function_begin($name,"");
246
247 &comment("");
248 $a="esi";
249 $b="edi";
250 $c="eax";
251 $r="ebx";
252 $tmp1="ecx";
253 $tmp2="edx";
254 $num="ebp";
255
256 &mov($r,&wparam(0)); # get r
257 &mov($a,&wparam(1)); # get a
258 &mov($b,&wparam(2)); # get b
259 &mov($num,&wparam(3)); # get num
260 &xor($c,$c); # clear carry
261 &and($num,0xfffffff8); # num / 8
262
263 &jz(&label("aw_finish"));
264
265 &set_label("aw_loop",0);
266 for ($i=0; $i<8; $i++)
267 {
268 &comment("Round $i");
269
270 &mov($tmp1,&DWP($i*4,$a,"",0)); # *a
271 &mov($tmp2,&DWP($i*4,$b,"",0)); # *b
272 &add($tmp1,$c);
273 &mov($c,0);
274 &adc($c,$c);
275 &add($tmp1,$tmp2);
276 &adc($c,0);
277 &mov(&DWP($i*4,$r,"",0),$tmp1); # *r
278 }
279
280 &comment("");
281 &add($a,32);
282 &add($b,32);
283 &add($r,32);
284 &sub($num,8);
285 &jnz(&label("aw_loop"));
286
287 &set_label("aw_finish",0);
288 &mov($num,&wparam(3)); # get num
289 &and($num,7);
290 &jz(&label("aw_end"));
291
292 for ($i=0; $i<7; $i++)
293 {
294 &comment("Tail Round $i");
295 &mov($tmp1,&DWP($i*4,$a,"",0)); # *a
296 &mov($tmp2,&DWP($i*4,$b,"",0));# *b
297 &add($tmp1,$c);
298 &mov($c,0);
299 &adc($c,$c);
300 &add($tmp1,$tmp2);
301 &adc($c,0);
302 &dec($num) if ($i != 6);
303 &mov(&DWP($i*4,$r,"",0),$tmp1); # *a
304 &jz(&label("aw_end")) if ($i != 6);
305 }
306 &set_label("aw_end",0);
307
308# &mov("eax",$c); # $c is "eax"
309
310 &function_end($name);
311 }
312
313sub bn_sub_words
314 {
315 local($name)=@_;
316
317 &function_begin($name,"");
318
319 &comment("");
320 $a="esi";
321 $b="edi";
322 $c="eax";
323 $r="ebx";
324 $tmp1="ecx";
325 $tmp2="edx";
326 $num="ebp";
327
328 &mov($r,&wparam(0)); # get r
329 &mov($a,&wparam(1)); # get a
330 &mov($b,&wparam(2)); # get b
331 &mov($num,&wparam(3)); # get num
332 &xor($c,$c); # clear carry
333 &and($num,0xfffffff8); # num / 8
334
335 &jz(&label("aw_finish"));
336
337 &set_label("aw_loop",0);
338 for ($i=0; $i<8; $i++)
339 {
340 &comment("Round $i");
341
342 &mov($tmp1,&DWP($i*4,$a,"",0)); # *a
343 &mov($tmp2,&DWP($i*4,$b,"",0)); # *b
344 &sub($tmp1,$c);
345 &mov($c,0);
346 &adc($c,$c);
347 &sub($tmp1,$tmp2);
348 &adc($c,0);
349 &mov(&DWP($i*4,$r,"",0),$tmp1); # *r
350 }
351
352 &comment("");
353 &add($a,32);
354 &add($b,32);
355 &add($r,32);
356 &sub($num,8);
357 &jnz(&label("aw_loop"));
358
359 &set_label("aw_finish",0);
360 &mov($num,&wparam(3)); # get num
361 &and($num,7);
362 &jz(&label("aw_end"));
363
364 for ($i=0; $i<7; $i++)
365 {
366 &comment("Tail Round $i");
367 &mov($tmp1,&DWP($i*4,$a,"",0)); # *a
368 &mov($tmp2,&DWP($i*4,$b,"",0));# *b
369 &sub($tmp1,$c);
370 &mov($c,0);
371 &adc($c,$c);
372 &sub($tmp1,$tmp2);
373 &adc($c,0);
374 &dec($num) if ($i != 6);
375 &mov(&DWP($i*4,$r,"",0),$tmp1); # *a
376 &jz(&label("aw_end")) if ($i != 6);
377 }
378 &set_label("aw_end",0);
379
380# &mov("eax",$c); # $c is "eax"
381
382 &function_end($name);
383 }
384
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