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A		 1// $Id: WKdmDecompress.intel.s,v 1.1 2010/01/30 00:39:21 cclee Exp cclee $
2
3// This file contains i386 and x86_64 (no SSE) optimized implementation of WKdm Decompressor.
4// The implementation is derived by compiling (gcc -O3) the original C code (WKdmDecompress.c)
5// followed by hand tweaking of the compiled assembly code.
6// cclee, 1/29/10
7
8#if defined __i386__
9 .text
10 .align 4,0x90
11
12 .globl _WKdm_decompress
13_WKdm_decompress:
14
15 // save registers, set up base pointer %ebp, and allocate stack memory for local veriables
16
17 pushl %ebp
18 movl %esp, %ebp
19 pushl %edi
20 pushl %esi
21 pushl %ebx
22 subl $7324, %esp
23
24 // PRELOAD_DICTIONARY; dictionary starting address : -88(%ebp)
25 movl $1, -88(%ebp)
26 movl $1, -84(%ebp)
27 movl $1, -80(%ebp)
28 movl $1, -76(%ebp)
29 movl $1, -72(%ebp)
30 movl $1, -68(%ebp)
31 movl $1, -64(%ebp)
32 movl $1, -60(%ebp)
33 movl $1, -56(%ebp)
34 movl $1, -52(%ebp)
35 movl $1, -48(%ebp)
36 movl $1, -44(%ebp)
37 movl $1, -40(%ebp)
38 movl $1, -36(%ebp)
39 movl $1, -32(%ebp)
40 movl $1, -28(%ebp)
41
42 #define dictionary_addr -88(%ebp)
43 #define TAGS_AREA_END -7292(%ebp)
44 #define tempTagsArray -7300(%ebp)
45 #define tempQPosArray -2488(%ebp)
46 #define tempLowBitsArray -7288(%ebp)
47 #define next_low_bits -7296(%ebp)
48 #define dictionary -7308(%ebp)
49 #define tag_area_end -7304(%ebp)
50
51 // WK_unpack_2bits(TAGS_AREA_START(src_buf), TAGS_AREA_END(src_buf), tempTagsArray);
52
53 movl 8(%ebp), %eax // src_buf
54 addl $272, %eax // src_buf + 16 (WKdm Header) + 256 (Tags)
55 movl %eax, TAGS_AREA_END // TAGS_AREA_END(src_buf)
56 movl 8(%ebp), %eax // src_buf
57 movl %eax, %edi // src_buf
58 addl $16, %eax // TAGS_AREA_START(src_buf) = src_buf + 16 (WKdm Header)
59 leal -1288(%ebp), %edx // tempTagsArray
60 movl %edx, tempTagsArray // save a copy of tempTagsArray[] at the said location
61 cmpl %eax, TAGS_AREA_END // TAGS_AREA_END vs TAGS_AREA_START
62 jbe 1f // if TAGS_AREA_END<=TAGS_AREA_START, no need for WK_unpack_2bits
63 movl %edx, %ecx // %ecx -> tempTagsArray[0]
64 xorl %esi, %esi // i=0
65 movl $50529027, %ebx // 0x03030303, mask to extract 4 2-bit tags
66 .align 4,0x90
67L_WK_unpack_2bits:
68 movl 16(%edi,%esi,4), %edx // src_buf[i] for 16 tags, 16 (WKdm header)
69 movl %edx, %eax // w = src_buf[i]
70 andl %ebx, %eax // 1st 4 tags, each in bytes
71 movl %eax, (%ecx) // save 1st 4 tags
72 movl %edx, %eax // w = src_buf[i]
73 shrl $2, %eax // shift down 2 bits
74 andl %ebx, %eax // 2nd 4 tags, each in bytes
75 movl %eax, 4(%ecx) // save 2nd 4 tags
76 shrl $4, %edx // shift down w by 4 bits
77 movl %edx, %eax // w>>4
78 andl %ebx, %eax // 3rd 4 tags
79 movl %eax, 8(%ecx) // save 3rd 4 tags
80 shrl $2, %edx // w>>6
81 andl %ebx, %edx // 4th 4 tags
82 movl %edx, 12(%ecx) // save 4th 4 tags
83 addl $16, %ecx // point to next tempTagsArray[i*16]
84 incl %esi // i++
85 cmpl $64, %esi // i vs 64
86 jne L_WK_unpack_2bits // repeat the loop until i==64
871:
88
89 // WK_unpack_4bits(QPOS_AREA_START(src_buf), QPOS_AREA_END(src_buf), tempQPosArray);
90
91 movl 8(%edi), %eax // WKdm header qpos end
92 leal (%edi,%eax,4), %esi // QPOS_AREA_END
93 movl 4(%edi), %eax // WKdm header qpos start
94 leal (%edi,%eax,4), %ecx // QPOS_AREA_START
95 cmpl %ecx, %esi // QPOS_AREA_END vs QPOS_AREA_START
96 jbe 1f // if QPOS_AREA_END <= QPOS_AREA_START, skip WK_unpack_4bits
97 leal tempQPosArray, %edi // tempQPosArray
98 movl $252645135, %ebx // 0x0f0f0f0f : mask to extract 4 4-bit qpos
99L_WK_unpack_4bits:
100 movl (%ecx), %eax // w
101 movl %eax, %edx // w
102 andl %ebx, %edx // 1st 4 qpos
103 movl %edx, (%edi) // save 1st 4 qpos
104 shrl $4, %eax // w>>4
105 andl %ebx, %eax // 2nd 4 qpos
106 movl %eax, 4(%edi) // save 2nd 4 qpos
107 addl $4, %ecx // point to next word w
108 addl $8, %edi // qpos += 8
109 cmpl %ecx, %esi // QPOS_AREA_END vs qpos_pointer
110 ja L_WK_unpack_4bits // repeat until qpos_pointer >= QPOS_AREA_END
111
112 // WK_unpack_3_tenbits(LOW_BITS_AREA_START(src_buf), LOW_BITS_AREA_END(src_buf), tempLowBitsArray);
113
1141:
115 movl 8(%ebp), %edx // src_buf
116 movl 12(%edx), %eax // LOW_BITS_AREA_END offset
117 leal (%edx,%eax,4), %edi // LOW_BITS_AREA_END
118 cmpl %edi, %esi // LOW_BITS_AREA_START(=QPOS_AREA_END) vs LOW_BITS_AREA_END
119 jae 1f // if (LOW_BITS_AREA_START>=LOW_BITS_AREA_END) skip unpack_3_tenbits
120 leal tempLowBitsArray, %ecx // tempLowBitsArray
121 movl $1023, %ebx // 0x03ff to extact lower 10-bits
122
123 .align 4,0x90
124L_WK_unpack_3_tenbits:
125 movl (%esi), %eax // w = *next_low_bits
126 movl %eax, %edx // w
127 andl %ebx, %edx // 1st 10-bit
128 movl %edx, (%ecx) // save 1st 10-bit
129 shrl $10, %eax // (w>>10)
130 movl %eax, %edx // (w>>10)
131 andl %ebx, %edx // 2nd 10-bit
132 movl %edx, 4(%ecx) // save 2nd 10-bit
133 shrl $10, %eax // (w>>20), no need to and with mask, the top 2 bits should be zero
134 movl %eax, 8(%ecx) // save 3rd 10-bits
135 addl $4, %esi // point to next w
136 addl $12, %ecx // tempLowBitsArray += 3;
137 cmpl %esi, %edi // LOW_BITS_AREA_END vs next_low_bits
138 ja L_WK_unpack_3_tenbits // repeat until next_low_bits>=LOW_BITS_AREA_END
1391:
140 call Lhash
141Lhash:
142 popl %ebx // set up %ebx for use in Hash Table loopup[
143
144 #define next_tag %esi
145 #define next_qpos %edi
146
147 movl tempTagsArray, next_tag // next_tag = tempTagsArray
148 leal tempQPosArray, next_qpos // next_qpos = tempQPosArray
149 movl 12(%ebp), %ecx // dest_buf
150 addl $4, %ecx // for some reason, performance is better if we points to the next one
151 leal tempLowBitsArray, %eax // tempLowBitsArray
152 movl %eax, next_low_bits // next_low_bits = next_low_bits;
153 leal -264(%ebp), %edx
154 movl %edx, tag_area_end // tag_area_end
155 leal dictionary_addr, %eax // dictionary starting address
156 movl %eax, dictionary // dictionary
157 jmp L11
158 .align 4,0x90
159L29:
160 jle L_ZERO_TAG
161 cmpb $2, %al // MISS_TAG
162 je L_MISS_TAG
163L_EXACT_TAG:
164 movsbl (next_qpos),%eax // qpos = *next_qpos
165 incl next_qpos // next_qpos++
166 movl dictionary, %edx // dictionary
167 movl (%edx,%eax,4), %eax // w = dictionary[qpos]
168 movl %eax, -4(%ecx) // *dest_buf = w
169 .align 4,0x90
170L_next:
171 incl next_tag // next_tag++
172 addl $4, %ecx // dest_buf++
173 cmpl tag_area_end, next_tag // next_tag vs tag_area_end
174 jae L_done // if (next_tag>=tag_area_end)
175L11:
176 movzbl (next_tag), %eax // tag = *next_tag
177 cmpb $1, %al // Partial match?
178 jne L29
179L_PARTIAL_TAG:
180 movsbl (next_qpos),%edx // qpos = *next_qpos
181 movl dictionary, %eax // dictionary
182 leal (%eax,%edx,4), %edx // dict_location = &dictionary[qpos]
183 movl %edx, -7324(%ebp) // save dict_location to release %edx
184 incl next_qpos // next_qpos++
185 movl (%edx), %eax // read dictionary word
186 andl $-1024, %eax // keep only higher 22-bits
187 movl next_low_bits, %edx // low_bits = *next_low_bits
188 orl (%edx), %eax // construct the new partially matched word
189 addl $4, %edx //
190 movl %edx, next_low_bits // next_low_bits++
191 movl -7324(%ebp), %edx // dict_location
192 movl %eax, (%edx) // update *dict_location with the newly constructed word
193 movl %eax, -4(%ecx) // *dest_buf = the newly constructed word
194 incl next_tag // next_tag++
195 addl $4, %ecx // dest_buf++
196 cmpl tag_area_end, next_tag // next_tag vs tag_area_end
197 jb L11 // if next_tag < tag_area_end, repeat the loop
198L_done:
199
200 // release stack memory, restore registers, and return
201 addl $7324, %esp
202 popl %ebx
203 popl %esi
204 popl %edi
205 leave
206 ret
207
208 #define next_full_patt -7292(%ebp) /* next_full_patt starts with initial value of TAGS_AREA_END */
209
210 .align 4,0x90
211L_MISS_TAG:
212 movl next_full_patt, %edx // next_full_patt
213 movl (%edx), %eax // word = *next_full_patt
214 addl $4, %edx // next_full_patt++
215 movl %edx, next_full_patt // save next_full_patt
216 movl %eax, %edx // word
217 shrl $10, %edx // word>>10
218 andl $255, %edx // 8-bit hash table index
219 movsbl _hashLookupTable-Lhash(%ebx,%edx),%edx // qpos
220 movl %eax, -88(%ebp,%edx) // dictionary[qpos] = word
221 movl %eax, -4(%ecx) // *dest_buf = word
222 jmp L_next // repeat the loop
223
224 .align 4,0x90
225L_ZERO_TAG:
226 movl $0, -4(%ecx) // *dest_buf = 0
227 jmp L_next // repeat the loop
228
229#endif // __i386__
230
231#if defined __x86_64__
232
233
234 .text
235 .align 4,0x90
236
237 .globl _WKdm_decompress
238_WKdm_decompress:
239
240 // save registers, and allocate stack memory for local variables
241
242 pushq %rbp
243 movq %rsp, %rbp
244 pushq %r12
245 pushq %rbx
246 subq $7144, %rsp
247
248 movq %rsi, %r12 // dest_buf
249
250 // PRELOAD_DICTIONARY; dictionary starting address : starting address -80(%rpb)
251 movl $1, -80(%rbp)
252 movl $1, -76(%rbp)
253 movl $1, -72(%rbp)
254 movl $1, -68(%rbp)
255 movl $1, -64(%rbp)
256 movl $1, -60(%rbp)
257 movl $1, -56(%rbp)
258 movl $1, -52(%rbp)
259 movl $1, -48(%rbp)
260 movl $1, -44(%rbp)
261 movl $1, -40(%rbp)
262 movl $1, -36(%rbp)
263 movl $1, -32(%rbp)
264 movl $1, -28(%rbp)
265 movl $1, -24(%rbp)
266 movl $1, -20(%rbp)
267
268 // WK_unpack_2bits(TAGS_AREA_START(src_buf), TAGS_AREA_END(src_buf), tempTagsArray);
269 leaq 272(%rdi), %r10 // TAGS_AREA_END
270 leaq 16(%rdi), %rax // TAGS_AREA_START
271 leaq -1280(%rbp), %rsi // tempTagsArray
272 cmpq %rax, %r10 // TAGS_AREA_END vs TAGS_AREA_START
273 jbe 1f // if TAGS_AREA_END <= TAGS_AREA_START, skip L_WK_unpack_2bits
274 movq %rsi, %rcx // next_word
275 xorl %r8d, %r8d // i = 0
276 .align 4,0x90
277L_WK_unpack_2bits:
278 movl 16(%rdi,%r8,4), %edx // w = *next_word
279 movl %edx, %eax // w
280 andl $50529027, %eax // 1st 4 tags
281 movl %eax, (%rcx) // write 1st 4 tags
282 movl %edx, %eax // w
283 shrl $2, %eax // w>>2
284 andl $50529027, %eax // 2nd 4 tags
285 movl %eax, 4(%rcx) // write 2nd 4 tags
286 shrl $4, %edx // w>>4
287 movl %edx, %eax // w>>4
288 andl $50529027, %eax // 3rd 4 tags
289 movl %eax, 8(%rcx) // write 3rd 4 tags
290 shrl $2, %edx // w>>6
291 andl $50529027, %edx // 4th 4 tags
292 movl %edx, 12(%rcx) // write 4th 4 tags
293 addq $16, %rcx // next_tags += 16
294 incq %r8 // i++
295 cmpq $64, %r8 // i vs 64
296 jne L_WK_unpack_2bits // repeat loop until i==64
2971:
298
299 // WK_unpack_4bits(QPOS_AREA_START(src_buf), QPOS_AREA_END(src_buf), tempQPosArray);
300
301 mov 8(%rdi), %eax // WKdm header qpos end
302 leaq (%rdi,%rax,4), %r9 // QPOS_AREA_END
303 mov 4(%rdi), %eax // WKdm header qpos start
304 leaq (%rdi,%rax,4), %r8 // QPOS_AREA_START
305 leaq -2480(%rbp), %rbx // tempQPosArray
306 cmpq %r8, %r9 // QPOS_AREA_END vs QPOS_AREA_START
307 jbe 1f // if QPOS_AREA_END <= QPOS_AREA_START, skip L_WK_unpack_4bits
308 leaq 8(%rbx), %rcx // next_qpos
309L_WK_unpack_4bits:
310 movl (%r8), %eax // w = *next_word
311 movl %eax, %edx // w
312 andl $252645135, %edx // 1st 4 qpos
313 movl %edx, -8(%rcx) // write 1st 4 qpos
314 shrl $4, %eax // w>>4
315 andl $252645135, %eax // 2nd 4 qpos
316 movl %eax, -4(%rcx) // write 2nd 4 qpos
317 addq $4, %r8 // next_word++
318 addq $8, %rcx // next_qpos+=8
319 cmpq %r8, %r9 // QPOS_AREA_END vs QPOS_AREA_START
320 ja L_WK_unpack_4bits // repeat loop until QPOS_AREA_END <= QPOS_AREA_START
3211:
322
323 // WK_unpack_3_tenbits(LOW_BITS_AREA_START(src_buf), LOW_BITS_AREA_END(src_buf), tempLowBitsArray);
324
325 mov 12(%rdi), %eax // LOW_BITS_AREA_END offset
326 leaq (%rdi,%rax,4), %rdi // LOW_BITS_AREA_END
327 leaq -7280(%rbp), %r11 // tempLowBitsArray
328 cmpq %rdi, %r9 // LOW_BITS_AREA_START vs LOW_BITS_AREA_END
329 jae 1f // if START>=END, skip L_WK_unpack_3_tenbits
330 leaq 12(%r11), %rcx // next_low_bits
331L_WK_unpack_3_tenbits:
332 movl (%r9), %eax // w = *next_word
333 movl %eax, %edx // w
334 andl $1023, %edx // 1st tenbits
335 movl %edx, -12(%rcx) // write 1st tenbits
336 shrl $10, %eax // w >> 10
337 movl %eax, %edx // w >> 10
338 andl $1023, %edx // 2nd tenbits
339 movl %edx, -8(%rcx) // write 2nd tenbits
340 shrl $10, %eax // w >> 20, 3rd tenbits
341 movl %eax, -4(%rcx) // write 3rd tenbits
342 addq $4, %r9 // next_word++
343 addq $12, %rcx // next_low_bits += 3
344 cmpq %r9, %rdi // LOW_BITS_AREA_END vs next_word
345 ja L_WK_unpack_3_tenbits // repeat loop if LOW_BITS_AREA_END > next_word
3461:
347 movq %rsi, %rdi // next_tag
348 movq %rbx, %r8 // next_qpos
349 leaq 4(%r12), %rcx // dest_buf
350 movq %r11, %r9 // next_low_bits
351 leaq -80(%rbp), %r11 // dictionary
352 leaq _hashLookupTable(%rip), %rbx // hash look up table
353 leaq 1024(%rsi), %rsi // tag_area_end
354
355 jmp L11
356 .align 4,0x90
357L31:
358 jle L_ZERO_TAG
359 cmpb $2, %al // MISS_TAG
360 je L_MISS_TAG
361L_EXACT_TAG:
362 movsbq (%r8),%rax // qpos = *next_qpos
363 incq %r8 // next_qpos++
364 movl (%r11,%rax,4), %eax // w = dictionary[qpos]
365 movl %eax, -4(%rcx) // *dest_buf = w
366 .align 4,0x90
367L_next:
368 incq %rdi // next_tag++
369 addq $4, %rcx // dest_buf++
370 cmpq %rsi, %rdi // next_tag vs tag_area_end
371 jae L_done // if next_tag >= tag_area_end, we're done
372L11:
373 movzbl (%rdi), %eax // tag = *next_tag
374 cmpb $1, %al // partial match tag ?
375 jne L31
376L_PARTIAL_TAG:
377 movsbq (%r8),%rdx // qpos = *next_qpos
378 leaq (%r11,%rdx,4), %rdx // dict_location = &dictionary[qpos]
379 incq %r8 // next_qpos++
380 movl (%rdx), %eax // read dictionary word
381 andl $-1024, %eax // clear lower 10 bits
382 orl (%r9), %eax // pad the lower 10-bits from *next_low_bits
383 addq $4, %r9 // next_low_bits++
384 movl %eax, (%rdx) // *dict_location = newly formed word
385 movl %eax, -4(%rcx) // *dest_buf = newly formed word
386 cmpq %rsi, %rdi // compare next_tag vs tag_area_end
387 jne L_next // repeat loop until next_tag==tag_area_end
388L_done:
389
390 // release stack memory, restore registers, and return
391 addq $7144, %rsp
392 popq %rbx
393 popq %r12
394 leave
395 ret
396
397 .align 4,0x90
398L_MISS_TAG:
399 movl (%r10), %eax // w = *next_full_patt
400 addq $4, %r10 // next_full_patt++
401 movl %eax, %edx // w
402 shrl $10, %edx // w>>10
403 movzbl %dl, %edx // 8-bit hash table index
404 movsbq (%rbx,%rdx),%rdx // qpos
405 movl %eax, -80(%rbp,%rdx) // dictionary[qpos] = word
406 movl %eax, -4(%rcx) // *dest_buf = word
407 jmp L_next // repeat the loop
408
409 .align 4,0x90
410L_ZERO_TAG:
411 movl $0, -4(%rcx) // *dest_buf = 0
412 jmp L_next // repeat the loop
413
414#endif // --X86_64__
415
416.globl _hashLookupTable
417 .const
418 .align 5
419_hashLookupTable:
420 .byte 0
421 .byte 52
422 .byte 8
423 .byte 56
424 .byte 16
425 .byte 12
426 .byte 28
427 .byte 20
428 .byte 4
429 .byte 36
430 .byte 48
431 .byte 24
432 .byte 44
433 .byte 40
434 .byte 32
435 .byte 60
436 .byte 8
437 .byte 12
438 .byte 28
439 .byte 20
440 .byte 4
441 .byte 60
442 .byte 16
443 .byte 36
444 .byte 24
445 .byte 48
446 .byte 44
447 .byte 32
448 .byte 52
449 .byte 56
450 .byte 40
451 .byte 12
452 .byte 8
453 .byte 48
454 .byte 16
455 .byte 52
456 .byte 60
457 .byte 28
458 .byte 56
459 .byte 32
460 .byte 20
461 .byte 24
462 .byte 36
463 .byte 40
464 .byte 44
465 .byte 4
466 .byte 8
467 .byte 40
468 .byte 60
469 .byte 32
470 .byte 20
471 .byte 44
472 .byte 4
473 .byte 36
474 .byte 52
475 .byte 24
476 .byte 16
477 .byte 56
478 .byte 48
479 .byte 12
480 .byte 28
481 .byte 16
482 .byte 8
483 .byte 40
484 .byte 36
485 .byte 28
486 .byte 32
487 .byte 12
488 .byte 4
489 .byte 44
490 .byte 52
491 .byte 20
492 .byte 24
493 .byte 48
494 .byte 60
495 .byte 56
496 .byte 40
497 .byte 48
498 .byte 8
499 .byte 32
500 .byte 28
501 .byte 36
502 .byte 4
503 .byte 44
504 .byte 20
505 .byte 56
506 .byte 60
507 .byte 24
508 .byte 52
509 .byte 16
510 .byte 12
511 .byte 12
512 .byte 4
513 .byte 48
514 .byte 20
515 .byte 8
516 .byte 52
517 .byte 16
518 .byte 60
519 .byte 24
520 .byte 36
521 .byte 44
522 .byte 28
523 .byte 56
524 .byte 40
525 .byte 32
526 .byte 36
527 .byte 20
528 .byte 24
529 .byte 60
530 .byte 40
531 .byte 44
532 .byte 52
533 .byte 16
534 .byte 32
535 .byte 4
536 .byte 48
537 .byte 8
538 .byte 28
539 .byte 56
540 .byte 12
541 .byte 28
542 .byte 32
543 .byte 40
544 .byte 52
545 .byte 36
546 .byte 16
547 .byte 20
548 .byte 48
549 .byte 8
550 .byte 4
551 .byte 60
552 .byte 24
553 .byte 56
554 .byte 44
555 .byte 12
556 .byte 8
557 .byte 36
558 .byte 24
559 .byte 28
560 .byte 16
561 .byte 60
562 .byte 20
563 .byte 56
564 .byte 32
565 .byte 40
566 .byte 48
567 .byte 12
568 .byte 4
569 .byte 44
570 .byte 52
571 .byte 44
572 .byte 40
573 .byte 12
574 .byte 56
575 .byte 8
576 .byte 36
577 .byte 24
578 .byte 60
579 .byte 28
580 .byte 48
581 .byte 4
582 .byte 32
583 .byte 20
584 .byte 16
585 .byte 52
586 .byte 60
587 .byte 12
588 .byte 24
589 .byte 36
590 .byte 8
591 .byte 4
592 .byte 16
593 .byte 56
594 .byte 48
595 .byte 44
596 .byte 40
597 .byte 52
598 .byte 32
599 .byte 20
600 .byte 28
601 .byte 32
602 .byte 12
603 .byte 36
604 .byte 28
605 .byte 24
606 .byte 56
607 .byte 40
608 .byte 16
609 .byte 52
610 .byte 44
611 .byte 4
612 .byte 20
613 .byte 60
614 .byte 8
615 .byte 48
616 .byte 48
617 .byte 52
618 .byte 12
619 .byte 20
620 .byte 32
621 .byte 44
622 .byte 36
623 .byte 28
624 .byte 4
625 .byte 40
626 .byte 24
627 .byte 8
628 .byte 56
629 .byte 60
630 .byte 16
631 .byte 36
632 .byte 32
633 .byte 8
634 .byte 40
635 .byte 4
636 .byte 52
637 .byte 24
638 .byte 44
639 .byte 20
640 .byte 12
641 .byte 28
642 .byte 48
643 .byte 56
644 .byte 16
645 .byte 60
646 .byte 4
647 .byte 52
648 .byte 60
649 .byte 48
650 .byte 20
651 .byte 16
652 .byte 56
653 .byte 44
654 .byte 24
655 .byte 8
656 .byte 40
657 .byte 12
658 .byte 32
659 .byte 28
660 .byte 36
661 .byte 24
662 .byte 32
663 .byte 12
664 .byte 4
665 .byte 20
666 .byte 16
667 .byte 60
668 .byte 36
669 .byte 28
670 .byte 8
671 .byte 52
672 .byte 40
673 .byte 48
674 .byte 44
675 .byte 56
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