-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy patharith_mipsx.s
467 lines (458 loc) · 9.04 KB
/
arith_mipsx.s
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
// Copyright 2025 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Code generated by 'go generate' (with ./internal/asmgen). DO NOT EDIT.
//go:build !math_big_pure_go && (mips || mipsle)
#include "textflag.h"
// func addVV(z, x, y []Word) (c Word)
TEXT ·addVV(SB), NOSPLIT, $0
MOVW z_len+4(FP), R1
MOVW x_base+12(FP), R2
MOVW y_base+24(FP), R3
MOVW z_base+0(FP), R4
// compute unrolled loop lengths
AND $3, R1, R5
SRL $2, R1
XOR R26, R26 // clear carry
loop1:
BEQ R5, loop1done
loop1cont:
// unroll 1X
MOVW 0(R2), R6
MOVW 0(R3), R7
ADDU R7, R6 // ADCS R7, R6, R6 (cr=R26)
SGTU R7, R6, R23 // ...
ADDU R26, R6 // ...
SGTU R26, R6, R26 // ...
ADDU R23, R26 // ...
MOVW R6, 0(R4)
ADDU $4, R2
ADDU $4, R3
ADDU $4, R4
SUBU $1, R5
BNE R5, loop1cont
loop1done:
loop4:
BEQ R1, loop4done
loop4cont:
// unroll 4X
MOVW 0(R2), R5
MOVW 4(R2), R6
MOVW 8(R2), R7
MOVW 12(R2), R8
MOVW 0(R3), R9
MOVW 4(R3), R10
MOVW 8(R3), R11
MOVW 12(R3), R12
ADDU R9, R5 // ADCS R9, R5, R5 (cr=R26)
SGTU R9, R5, R23 // ...
ADDU R26, R5 // ...
SGTU R26, R5, R26 // ...
ADDU R23, R26 // ...
ADDU R10, R6 // ADCS R10, R6, R6 (cr=R26)
SGTU R10, R6, R23 // ...
ADDU R26, R6 // ...
SGTU R26, R6, R26 // ...
ADDU R23, R26 // ...
ADDU R11, R7 // ADCS R11, R7, R7 (cr=R26)
SGTU R11, R7, R23 // ...
ADDU R26, R7 // ...
SGTU R26, R7, R26 // ...
ADDU R23, R26 // ...
ADDU R12, R8 // ADCS R12, R8, R8 (cr=R26)
SGTU R12, R8, R23 // ...
ADDU R26, R8 // ...
SGTU R26, R8, R26 // ...
ADDU R23, R26 // ...
MOVW R5, 0(R4)
MOVW R6, 4(R4)
MOVW R7, 8(R4)
MOVW R8, 12(R4)
ADDU $16, R2
ADDU $16, R3
ADDU $16, R4
SUBU $1, R1
BNE R1, loop4cont
loop4done:
MOVW R26, c+36(FP)
RET
// func subVV(z, x, y []Word) (c Word)
TEXT ·subVV(SB), NOSPLIT, $0
MOVW z_len+4(FP), R1
MOVW x_base+12(FP), R2
MOVW y_base+24(FP), R3
MOVW z_base+0(FP), R4
// compute unrolled loop lengths
AND $3, R1, R5
SRL $2, R1
XOR R26, R26 // clear carry
loop1:
BEQ R5, loop1done
loop1cont:
// unroll 1X
MOVW 0(R2), R6
MOVW 0(R3), R7
SGTU R26, R6, R23 // SBCS R7, R6, R6
SUBU R26, R6 // ...
SGTU R7, R6, R26 // ...
SUBU R7, R6 // ...
ADDU R23, R26 // ...
MOVW R6, 0(R4)
ADDU $4, R2
ADDU $4, R3
ADDU $4, R4
SUBU $1, R5
BNE R5, loop1cont
loop1done:
loop4:
BEQ R1, loop4done
loop4cont:
// unroll 4X
MOVW 0(R2), R5
MOVW 4(R2), R6
MOVW 8(R2), R7
MOVW 12(R2), R8
MOVW 0(R3), R9
MOVW 4(R3), R10
MOVW 8(R3), R11
MOVW 12(R3), R12
SGTU R26, R5, R23 // SBCS R9, R5, R5
SUBU R26, R5 // ...
SGTU R9, R5, R26 // ...
SUBU R9, R5 // ...
ADDU R23, R26 // ...
SGTU R26, R6, R23 // SBCS R10, R6, R6
SUBU R26, R6 // ...
SGTU R10, R6, R26 // ...
SUBU R10, R6 // ...
ADDU R23, R26 // ...
SGTU R26, R7, R23 // SBCS R11, R7, R7
SUBU R26, R7 // ...
SGTU R11, R7, R26 // ...
SUBU R11, R7 // ...
ADDU R23, R26 // ...
SGTU R26, R8, R23 // SBCS R12, R8, R8
SUBU R26, R8 // ...
SGTU R12, R8, R26 // ...
SUBU R12, R8 // ...
ADDU R23, R26 // ...
MOVW R5, 0(R4)
MOVW R6, 4(R4)
MOVW R7, 8(R4)
MOVW R8, 12(R4)
ADDU $16, R2
ADDU $16, R3
ADDU $16, R4
SUBU $1, R1
BNE R1, loop4cont
loop4done:
MOVW R26, c+36(FP)
RET
// func lshVU(z, x []Word, s uint) (c Word)
TEXT ·lshVU(SB), NOSPLIT, $0
MOVW z_len+4(FP), R1
BEQ R1, ret0
MOVW s+24(FP), R2
MOVW x_base+12(FP), R3
MOVW z_base+0(FP), R4
// run loop backward
SLL $2, R1, R5
ADDU R5, R3
SLL $2, R1, R5
ADDU R5, R4
// shift first word into carry
MOVW -4(R3), R5
MOVW $32, R6
SUBU R2, R6
SRL R6, R5, R7
SLL R2, R5
MOVW R7, c+28(FP)
// shift remaining words
SUBU $1, R1
// compute unrolled loop lengths
AND $3, R1, R7
SRL $2, R1
loop1:
BEQ R7, loop1done
loop1cont:
// unroll 1X
MOVW -8(R3), R8
SRL R6, R8, R9
OR R5, R9
SLL R2, R8, R5
MOVW R9, -4(R4)
ADDU $-4, R3
ADDU $-4, R4
SUBU $1, R7
BNE R7, loop1cont
loop1done:
loop4:
BEQ R1, loop4done
loop4cont:
// unroll 4X
MOVW -8(R3), R7
MOVW -12(R3), R8
MOVW -16(R3), R9
MOVW -20(R3), R10
SRL R6, R7, R11
OR R5, R11
SLL R2, R7, R5
SRL R6, R8, R7
OR R5, R7
SLL R2, R8, R5
SRL R6, R9, R8
OR R5, R8
SLL R2, R9, R5
SRL R6, R10, R9
OR R5, R9
SLL R2, R10, R5
MOVW R11, -4(R4)
MOVW R7, -8(R4)
MOVW R8, -12(R4)
MOVW R9, -16(R4)
ADDU $-16, R3
ADDU $-16, R4
SUBU $1, R1
BNE R1, loop4cont
loop4done:
// store final shifted bits
MOVW R5, -4(R4)
RET
ret0:
MOVW R0, c+28(FP)
RET
// func rshVU(z, x []Word, s uint) (c Word)
TEXT ·rshVU(SB), NOSPLIT, $0
MOVW z_len+4(FP), R1
BEQ R1, ret0
MOVW s+24(FP), R2
MOVW x_base+12(FP), R3
MOVW z_base+0(FP), R4
// shift first word into carry
MOVW 0(R3), R5
MOVW $32, R6
SUBU R2, R6
SLL R6, R5, R7
SRL R2, R5
MOVW R7, c+28(FP)
// shift remaining words
SUBU $1, R1
// compute unrolled loop lengths
AND $3, R1, R7
SRL $2, R1
loop1:
BEQ R7, loop1done
loop1cont:
// unroll 1X
MOVW 4(R3), R8
SLL R6, R8, R9
OR R5, R9
SRL R2, R8, R5
MOVW R9, 0(R4)
ADDU $4, R3
ADDU $4, R4
SUBU $1, R7
BNE R7, loop1cont
loop1done:
loop4:
BEQ R1, loop4done
loop4cont:
// unroll 4X
MOVW 4(R3), R7
MOVW 8(R3), R8
MOVW 12(R3), R9
MOVW 16(R3), R10
SLL R6, R7, R11
OR R5, R11
SRL R2, R7, R5
SLL R6, R8, R7
OR R5, R7
SRL R2, R8, R5
SLL R6, R9, R8
OR R5, R8
SRL R2, R9, R5
SLL R6, R10, R9
OR R5, R9
SRL R2, R10, R5
MOVW R11, 0(R4)
MOVW R7, 4(R4)
MOVW R8, 8(R4)
MOVW R9, 12(R4)
ADDU $16, R3
ADDU $16, R4
SUBU $1, R1
BNE R1, loop4cont
loop4done:
// store final shifted bits
MOVW R5, 0(R4)
RET
ret0:
MOVW R0, c+28(FP)
RET
// func mulAddVWW(z, x []Word, m, a Word) (c Word)
TEXT ·mulAddVWW(SB), NOSPLIT, $0
MOVW m+24(FP), R1
MOVW a+28(FP), R2
MOVW z_len+4(FP), R3
MOVW x_base+12(FP), R4
MOVW z_base+0(FP), R5
// compute unrolled loop lengths
AND $3, R3, R6
SRL $2, R3
loop1:
BEQ R6, loop1done
loop1cont:
// unroll 1X
MOVW 0(R4), R7
// synthetic carry, one column at a time
MULU R1, R7
MOVW LO, R8
MOVW HI, R9
ADDU R2, R8, R7 // ADDS R2, R8, R7 (cr=R26)
SGTU R2, R7, R26 // ...
ADDU R26, R9, R2 // ADC $0, R9, R2
MOVW R7, 0(R5)
ADDU $4, R4
ADDU $4, R5
SUBU $1, R6
BNE R6, loop1cont
loop1done:
loop4:
BEQ R3, loop4done
loop4cont:
// unroll 4X
MOVW 0(R4), R6
MOVW 4(R4), R7
MOVW 8(R4), R8
MOVW 12(R4), R9
// synthetic carry, one column at a time
MULU R1, R6
MOVW LO, R10
MOVW HI, R11
ADDU R2, R10, R6 // ADDS R2, R10, R6 (cr=R26)
SGTU R2, R6, R26 // ...
ADDU R26, R11, R2 // ADC $0, R11, R2
MULU R1, R7
MOVW LO, R10
MOVW HI, R11
ADDU R2, R10, R7 // ADDS R2, R10, R7 (cr=R26)
SGTU R2, R7, R26 // ...
ADDU R26, R11, R2 // ADC $0, R11, R2
MULU R1, R8
MOVW LO, R10
MOVW HI, R11
ADDU R2, R10, R8 // ADDS R2, R10, R8 (cr=R26)
SGTU R2, R8, R26 // ...
ADDU R26, R11, R2 // ADC $0, R11, R2
MULU R1, R9
MOVW LO, R10
MOVW HI, R11
ADDU R2, R10, R9 // ADDS R2, R10, R9 (cr=R26)
SGTU R2, R9, R26 // ...
ADDU R26, R11, R2 // ADC $0, R11, R2
MOVW R6, 0(R5)
MOVW R7, 4(R5)
MOVW R8, 8(R5)
MOVW R9, 12(R5)
ADDU $16, R4
ADDU $16, R5
SUBU $1, R3
BNE R3, loop4cont
loop4done:
MOVW R2, c+32(FP)
RET
// func addMulVVWW(z, x, y []Word, m, a Word) (c Word)
TEXT ·addMulVVWW(SB), NOSPLIT, $0
MOVW m+36(FP), R1
MOVW a+40(FP), R2
MOVW z_len+4(FP), R3
MOVW x_base+12(FP), R4
MOVW y_base+24(FP), R5
MOVW z_base+0(FP), R6
// compute unrolled loop lengths
AND $3, R3, R7
SRL $2, R3
loop1:
BEQ R7, loop1done
loop1cont:
// unroll 1X
MOVW 0(R4), R8
MOVW 0(R5), R9
// synthetic carry, one column at a time
MULU R1, R9
MOVW LO, R10
MOVW HI, R11
ADDU R8, R10 // ADDS R8, R10, R10 (cr=R26)
SGTU R8, R10, R26 // ...
ADDU R26, R11 // ADC $0, R11, R11
ADDU R2, R10, R9 // ADDS R2, R10, R9 (cr=R26)
SGTU R2, R9, R26 // ...
ADDU R26, R11, R2 // ADC $0, R11, R2
MOVW R9, 0(R6)
ADDU $4, R4
ADDU $4, R5
ADDU $4, R6
SUBU $1, R7
BNE R7, loop1cont
loop1done:
loop4:
BEQ R3, loop4done
loop4cont:
// unroll 4X
MOVW 0(R4), R7
MOVW 4(R4), R8
MOVW 8(R4), R9
MOVW 12(R4), R10
MOVW 0(R5), R11
MOVW 4(R5), R12
MOVW 8(R5), R13
MOVW 12(R5), R14
// synthetic carry, one column at a time
MULU R1, R11
MOVW LO, R15
MOVW HI, R16
ADDU R7, R15 // ADDS R7, R15, R15 (cr=R26)
SGTU R7, R15, R26 // ...
ADDU R26, R16 // ADC $0, R16, R16
ADDU R2, R15, R11 // ADDS R2, R15, R11 (cr=R26)
SGTU R2, R11, R26 // ...
ADDU R26, R16, R2 // ADC $0, R16, R2
MULU R1, R12
MOVW LO, R15
MOVW HI, R16
ADDU R8, R15 // ADDS R8, R15, R15 (cr=R26)
SGTU R8, R15, R26 // ...
ADDU R26, R16 // ADC $0, R16, R16
ADDU R2, R15, R12 // ADDS R2, R15, R12 (cr=R26)
SGTU R2, R12, R26 // ...
ADDU R26, R16, R2 // ADC $0, R16, R2
MULU R1, R13
MOVW LO, R15
MOVW HI, R16
ADDU R9, R15 // ADDS R9, R15, R15 (cr=R26)
SGTU R9, R15, R26 // ...
ADDU R26, R16 // ADC $0, R16, R16
ADDU R2, R15, R13 // ADDS R2, R15, R13 (cr=R26)
SGTU R2, R13, R26 // ...
ADDU R26, R16, R2 // ADC $0, R16, R2
MULU R1, R14
MOVW LO, R15
MOVW HI, R16
ADDU R10, R15 // ADDS R10, R15, R15 (cr=R26)
SGTU R10, R15, R26 // ...
ADDU R26, R16 // ADC $0, R16, R16
ADDU R2, R15, R14 // ADDS R2, R15, R14 (cr=R26)
SGTU R2, R14, R26 // ...
ADDU R26, R16, R2 // ADC $0, R16, R2
MOVW R11, 0(R6)
MOVW R12, 4(R6)
MOVW R13, 8(R6)
MOVW R14, 12(R6)
ADDU $16, R4
ADDU $16, R5
ADDU $16, R6
SUBU $1, R3
BNE R3, loop4cont
loop4done:
MOVW R2, c+44(FP)
RET