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Update copyright year range in all GDB files
[binutils-gdb.git] / sim / arm / iwmmxt.c
blob0362cf07ab495ebb6e18598c30217c412d7868e1
1 /* iwmmxt.c -- Intel(r) Wireless MMX(tm) technology co-processor interface.
2 Copyright (C) 2002-2021 Free Software Foundation, Inc.
3 Contributed by matthew green (mrg@redhat.com).
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17
18 #include <string.h>
19
20 #include "armdefs.h"
21 #include "armos.h"
22 #include "armemu.h"
23 #include "ansidecl.h"
24 #include "iwmmxt.h"
25
26 /* #define DEBUG 1 */
27
28 /* Intel(r) Wireless MMX(tm) technology co-processor.
29 It uses co-processor numbers (0 and 1). There are 16 vector registers wRx
30 and 16 control registers wCx. Co-processors 0 and 1 are used in MCR/MRC
31 to access wRx and wCx respectively. */
32
33 static ARMdword wR[16];
34 static ARMword wC[16] = { 0x69051010 };
35
36 #define SUBSTR(w,t,m,n) ((t)(w << ((sizeof (t) * 8 - 1) - (n))) \
37 >> (((sizeof (t) * 8 - 1) - (n)) + (m)))
38 #define wCBITS(w,x,y) SUBSTR (wC[w], ARMword, x, y)
39 #define wRBITS(w,x,y) SUBSTR (wR[w], ARMdword, x, y)
40 #define wCID 0
41 #define wCon 1
42 #define wCSSF 2
43 #define wCASF 3
44 #define wCGR0 8
45 #define wCGR1 9
46 #define wCGR2 10
47 #define wCGR3 11
48
49 /* Bits in the wCon register. */
50 #define WCON_CUP (1 << 0)
51 #define WCON_MUP (1 << 1)
52
53 /* Set the SIMD wCASF flags for 8, 16, 32 or 64-bit operations. */
54 #define SIMD8_SET(x, v, n, b) (x) |= ((v != 0) << ((((b) + 1) * 4) + (n)))
55 #define SIMD16_SET(x, v, n, h) (x) |= ((v != 0) << ((((h) + 1) * 8) + (n)))
56 #define SIMD32_SET(x, v, n, w) (x) |= ((v != 0) << ((((w) + 1) * 16) + (n)))
57 #define SIMD64_SET(x, v, n) (x) |= ((v != 0) << (32 + (n)))
58
59 /* Flags to pass as "n" above. */
60 #define SIMD_NBIT -1
61 #define SIMD_ZBIT -2
62 #define SIMD_CBIT -3
63 #define SIMD_VBIT -4
64
65 /* Various status bit macros. */
66 #define NBIT8(x) ((x) & 0x80)
67 #define NBIT16(x) ((x) & 0x8000)
68 #define NBIT32(x) ((x) & 0x80000000)
69 #define NBIT64(x) ((x) & 0x8000000000000000ULL)
70 #define ZBIT8(x) (((x) & 0xff) == 0)
71 #define ZBIT16(x) (((x) & 0xffff) == 0)
72 #define ZBIT32(x) (((x) & 0xffffffff) == 0)
73 #define ZBIT64(x) (x == 0)
74
75 /* Access byte/half/word "n" of register "x". */
76 #define wRBYTE(x,n) wRBITS ((x), (n) * 8, (n) * 8 + 7)
77 #define wRHALF(x,n) wRBITS ((x), (n) * 16, (n) * 16 + 15)
78 #define wRWORD(x,n) wRBITS ((x), (n) * 32, (n) * 32 + 31)
79
80 /* Macro to handle how the G bit selects wCGR registers. */
81 #define DECODE_G_BIT(state, instr, shift) \
82 { \
83 unsigned int reg; \
84 \
85 reg = BITS (0, 3); \
86 \
87 if (BIT (8)) /* G */ \
88 { \
89 if (reg < wCGR0 || reg > wCGR3) \
90 { \
91 ARMul_UndefInstr (state, instr); \
92 return ARMul_DONE; \
93 } \
94 shift = wC [reg]; \
95 } \
96 else \
97 shift = wR [reg]; \
98 \
99 shift &= 0xff; \
100 }
101
102 /* Index calculations for the satrv[] array. */
103 #define BITIDX8(x) (x)
104 #define BITIDX16(x) (((x) + 1) * 2 - 1)
105 #define BITIDX32(x) (((x) + 1) * 4 - 1)
106
107 /* Sign extension macros. */
108 #define EXTEND8(a) ((a) & 0x80 ? ((a) | 0xffffff00) : (a))
109 #define EXTEND16(a) ((a) & 0x8000 ? ((a) | 0xffff0000) : (a))
110 #define EXTEND32(a) ((a) & 0x80000000ULL ? ((a) | 0xffffffff00000000ULL) : (a))
111
112 /* Set the wCSSF from 8 values. */
113 #define SET_wCSSF(a,b,c,d,e,f,g,h) \
114 wC[wCSSF] = (((h) != 0) << 7) | (((g) != 0) << 6) \
115 | (((f) != 0) << 5) | (((e) != 0) << 4) \
116 | (((d) != 0) << 3) | (((c) != 0) << 2) \
117 | (((b) != 0) << 1) | (((a) != 0) << 0);
118
119 /* Set the wCSSR from an array with 8 values. */
120 #define SET_wCSSFvec(v) \
121 SET_wCSSF((v)[0],(v)[1],(v)[2],(v)[3],(v)[4],(v)[5],(v)[6],(v)[7])
122
123 /* Size qualifiers for vector operations. */
124 #define Bqual 0
125 #define Hqual 1
126 #define Wqual 2
127 #define Dqual 3
128
129 /* Saturation qualifiers for vector operations. */
130 #define NoSaturation 0
131 #define UnsignedSaturation 1
132 #define SignedSaturation 3
133
134 \f
135 /* Prototypes. */
136 static ARMword Add32 (ARMword, ARMword, int *, int *, ARMword);
137 static ARMdword AddS32 (ARMdword, ARMdword, int *, int *);
138 static ARMdword AddU32 (ARMdword, ARMdword, int *, int *);
139 static ARMword AddS16 (ARMword, ARMword, int *, int *);
140 static ARMword AddU16 (ARMword, ARMword, int *, int *);
141 static ARMword AddS8 (ARMword, ARMword, int *, int *);
142 static ARMword AddU8 (ARMword, ARMword, int *, int *);
143 static ARMword Sub32 (ARMword, ARMword, int *, int *, ARMword);
144 static ARMdword SubS32 (ARMdword, ARMdword, int *, int *);
145 static ARMdword SubU32 (ARMdword, ARMdword, int *, int *);
146 static ARMword SubS16 (ARMword, ARMword, int *, int *);
147 static ARMword SubS8 (ARMword, ARMword, int *, int *);
148 static ARMword SubU16 (ARMword, ARMword, int *, int *);
149 static ARMword SubU8 (ARMword, ARMword, int *, int *);
150 static unsigned char IwmmxtSaturateU8 (signed short, int *);
151 static signed char IwmmxtSaturateS8 (signed short, int *);
152 static unsigned short IwmmxtSaturateU16 (signed int, int *);
153 static signed short IwmmxtSaturateS16 (signed int, int *);
154 static unsigned long IwmmxtSaturateU32 (signed long long, int *);
155 static signed long IwmmxtSaturateS32 (signed long long, int *);
156 static ARMword Compute_Iwmmxt_Address (ARMul_State *, ARMword, int *);
157 static ARMdword Iwmmxt_Load_Double_Word (ARMul_State *, ARMword);
158 static ARMword Iwmmxt_Load_Word (ARMul_State *, ARMword);
159 static ARMword Iwmmxt_Load_Half_Word (ARMul_State *, ARMword);
160 static ARMword Iwmmxt_Load_Byte (ARMul_State *, ARMword);
161 static void Iwmmxt_Store_Double_Word (ARMul_State *, ARMword, ARMdword);
162 static void Iwmmxt_Store_Word (ARMul_State *, ARMword, ARMword);
163 static void Iwmmxt_Store_Half_Word (ARMul_State *, ARMword, ARMword);
164 static void Iwmmxt_Store_Byte (ARMul_State *, ARMword, ARMword);
165 static int Process_Instruction (ARMul_State *, ARMword);
166
167 static int TANDC (ARMul_State *, ARMword);
168 static int TBCST (ARMul_State *, ARMword);
169 static int TEXTRC (ARMul_State *, ARMword);
170 static int TEXTRM (ARMul_State *, ARMword);
171 static int TINSR (ARMul_State *, ARMword);
172 static int TMCR (ARMul_State *, ARMword);
173 static int TMCRR (ARMul_State *, ARMword);
174 static int TMIA (ARMul_State *, ARMword);
175 static int TMIAPH (ARMul_State *, ARMword);
176 static int TMIAxy (ARMul_State *, ARMword);
177 static int TMOVMSK (ARMul_State *, ARMword);
178 static int TMRC (ARMul_State *, ARMword);
179 static int TMRRC (ARMul_State *, ARMword);
180 static int TORC (ARMul_State *, ARMword);
181 static int WACC (ARMul_State *, ARMword);
182 static int WADD (ARMul_State *, ARMword);
183 static int WALIGNI (ARMword);
184 static int WALIGNR (ARMul_State *, ARMword);
185 static int WAND (ARMword);
186 static int WANDN (ARMword);
187 static int WAVG2 (ARMword);
188 static int WCMPEQ (ARMul_State *, ARMword);
189 static int WCMPGT (ARMul_State *, ARMword);
190 static int WLDR (ARMul_State *, ARMword);
191 static int WMAC (ARMword);
192 static int WMADD (ARMword);
193 static int WMAX (ARMul_State *, ARMword);
194 static int WMIN (ARMul_State *, ARMword);
195 static int WMUL (ARMword);
196 static int WOR (ARMword);
197 static int WPACK (ARMul_State *, ARMword);
198 static int WROR (ARMul_State *, ARMword);
199 static int WSAD (ARMword);
200 static int WSHUFH (ARMword);
201 static int WSLL (ARMul_State *, ARMword);
202 static int WSRA (ARMul_State *, ARMword);
203 static int WSRL (ARMul_State *, ARMword);
204 static int WSTR (ARMul_State *, ARMword);
205 static int WSUB (ARMul_State *, ARMword);
206 static int WUNPCKEH (ARMul_State *, ARMword);
207 static int WUNPCKEL (ARMul_State *, ARMword);
208 static int WUNPCKIH (ARMul_State *, ARMword);
209 static int WUNPCKIL (ARMul_State *, ARMword);
210 static int WXOR (ARMword);
211 \f
212 /* This function does the work of adding two 32bit values
213 together, and calculating if a carry has occurred. */
214
215 static ARMword
216 Add32 (ARMword a1,
217 ARMword a2,
218 int * carry_ptr,
219 int * overflow_ptr,
220 ARMword sign_mask)
221 {
222 ARMword result = (a1 + a2);
223 unsigned int uresult = (unsigned int) result;
224 unsigned int ua1 = (unsigned int) a1;
225
226 /* If (result == a1) and (a2 == 0),
227 or (result > a2) then we have no carry. */
228 * carry_ptr = ((uresult == ua1) ? (a2 != 0) : (uresult < ua1));
229
230 /* Overflow occurs when both arguments are the
231 same sign, but the result is a different sign. */
232 * overflow_ptr = ( ( (result & sign_mask) && !(a1 & sign_mask) && !(a2 & sign_mask))
233 || (!(result & sign_mask) && (a1 & sign_mask) && (a2 & sign_mask)));
234
235 return result;
236 }
237
238 static ARMdword
239 AddS32 (ARMdword a1, ARMdword a2, int * carry_ptr, int * overflow_ptr)
240 {
241 ARMdword result;
242 unsigned int uresult;
243 unsigned int ua1;
244
245 a1 = EXTEND32 (a1);
246 a2 = EXTEND32 (a2);
247
248 result = a1 + a2;
249 uresult = (unsigned int) result;
250 ua1 = (unsigned int) a1;
251
252 * carry_ptr = ((uresult == a1) ? (a2 != 0) : (uresult < ua1));
253
254 * overflow_ptr = ( ( (result & 0x80000000ULL) && !(a1 & 0x80000000ULL) && !(a2 & 0x80000000ULL))
255 || (!(result & 0x80000000ULL) && (a1 & 0x80000000ULL) && (a2 & 0x80000000ULL)));
256
257 return result;
258 }
259
260 static ARMdword
261 AddU32 (ARMdword a1, ARMdword a2, int * carry_ptr, int * overflow_ptr)
262 {
263 ARMdword result;
264 unsigned int uresult;
265 unsigned int ua1;
266
267 a1 &= 0xffffffff;
268 a2 &= 0xffffffff;
269
270 result = a1 + a2;
271 uresult = (unsigned int) result;
272 ua1 = (unsigned int) a1;
273
274 * carry_ptr = ((uresult == a1) ? (a2 != 0) : (uresult < ua1));
275
276 * overflow_ptr = ( ( (result & 0x80000000ULL) && !(a1 & 0x80000000ULL) && !(a2 & 0x80000000ULL))
277 || (!(result & 0x80000000ULL) && (a1 & 0x80000000ULL) && (a2 & 0x80000000ULL)));
278
279 return result;
280 }
281
282 static ARMword
283 AddS16 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
284 {
285 a1 = EXTEND16 (a1);
286 a2 = EXTEND16 (a2);
287
288 return Add32 (a1, a2, carry_ptr, overflow_ptr, 0x8000);
289 }
290
291 static ARMword
292 AddU16 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
293 {
294 a1 &= 0xffff;
295 a2 &= 0xffff;
296
297 return Add32 (a1, a2, carry_ptr, overflow_ptr, 0x8000);
298 }
299
300 static ARMword
301 AddS8 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
302 {
303 a1 = EXTEND8 (a1);
304 a2 = EXTEND8 (a2);
305
306 return Add32 (a1, a2, carry_ptr, overflow_ptr, 0x80);
307 }
308
309 static ARMword
310 AddU8 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
311 {
312 a1 &= 0xff;
313 a2 &= 0xff;
314
315 return Add32 (a1, a2, carry_ptr, overflow_ptr, 0x80);
316 }
317
318 static ARMword
319 Sub32 (ARMword a1,
320 ARMword a2,
321 int * borrow_ptr,
322 int * overflow_ptr,
323 ARMword sign_mask)
324 {
325 ARMword result = (a1 - a2);
326 unsigned int ua1 = (unsigned int) a1;
327 unsigned int ua2 = (unsigned int) a2;
328
329 /* A borrow occurs if a2 is (unsigned) larger than a1.
330 However the carry flag is *cleared* if a borrow occurs. */
331 * borrow_ptr = ! (ua2 > ua1);
332
333 /* Overflow occurs when a negative number is subtracted from a
334 positive number and the result is negative or a positive
335 number is subtracted from a negative number and the result is
336 positive. */
337 * overflow_ptr = ( (! (a1 & sign_mask) && (a2 & sign_mask) && (result & sign_mask))
338 || ((a1 & sign_mask) && ! (a2 & sign_mask) && ! (result & sign_mask)));
339
340 return result;
341 }
342
343 static ARMdword
344 SubS32 (ARMdword a1, ARMdword a2, int * borrow_ptr, int * overflow_ptr)
345 {
346 ARMdword result;
347 unsigned int ua1;
348 unsigned int ua2;
349
350 a1 = EXTEND32 (a1);
351 a2 = EXTEND32 (a2);
352
353 result = a1 - a2;
354 ua1 = (unsigned int) a1;
355 ua2 = (unsigned int) a2;
356
357 * borrow_ptr = ! (ua2 > ua1);
358
359 * overflow_ptr = ( (! (a1 & 0x80000000ULL) && (a2 & 0x80000000ULL) && (result & 0x80000000ULL))
360 || ((a1 & 0x80000000ULL) && ! (a2 & 0x80000000ULL) && ! (result & 0x80000000ULL)));
361
362 return result;
363 }
364
365 static ARMword
366 SubS16 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
367 {
368 a1 = EXTEND16 (a1);
369 a2 = EXTEND16 (a2);
370
371 return Sub32 (a1, a2, carry_ptr, overflow_ptr, 0x8000);
372 }
373
374 static ARMword
375 SubS8 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
376 {
377 a1 = EXTEND8 (a1);
378 a2 = EXTEND8 (a2);
379
380 return Sub32 (a1, a2, carry_ptr, overflow_ptr, 0x80);
381 }
382
383 static ARMword
384 SubU16 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
385 {
386 a1 &= 0xffff;
387 a2 &= 0xffff;
388
389 return Sub32 (a1, a2, carry_ptr, overflow_ptr, 0x8000);
390 }
391
392 static ARMword
393 SubU8 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr)
394 {
395 a1 &= 0xff;
396 a2 &= 0xff;
397
398 return Sub32 (a1, a2, carry_ptr, overflow_ptr, 0x80);
399 }
400
401 static ARMdword
402 SubU32 (ARMdword a1, ARMdword a2, int * borrow_ptr, int * overflow_ptr)
403 {
404 ARMdword result;
405 unsigned int ua1;
406 unsigned int ua2;
407
408 a1 &= 0xffffffff;
409 a2 &= 0xffffffff;
410
411 result = a1 - a2;
412 ua1 = (unsigned int) a1;
413 ua2 = (unsigned int) a2;
414
415 * borrow_ptr = ! (ua2 > ua1);
416
417 * overflow_ptr = ( (! (a1 & 0x80000000ULL) && (a2 & 0x80000000ULL) && (result & 0x80000000ULL))
418 || ((a1 & 0x80000000ULL) && ! (a2 & 0x80000000ULL) && ! (result & 0x80000000ULL)));
419
420 return result;
421 }
422
423 /* For the saturation. */
424
425 static unsigned char
426 IwmmxtSaturateU8 (signed short val, int * sat)
427 {
428 unsigned char rv;
429
430 if (val < 0)
431 {
432 rv = 0;
433 *sat = 1;
434 }
435 else if (val > 0xff)
436 {
437 rv = 0xff;
438 *sat = 1;
439 }
440 else
441 {
442 rv = val & 0xff;
443 *sat = 0;
444 }
445 return rv;
446 }
447
448 static signed char
449 IwmmxtSaturateS8 (signed short val, int * sat)
450 {
451 signed char rv;
452
453 if (val < -0x80)
454 {
455 rv = -0x80;
456 *sat = 1;
457 }
458 else if (val > 0x7f)
459 {
460 rv = 0x7f;
461 *sat = 1;
462 }
463 else
464 {
465 rv = val & 0xff;
466 *sat = 0;
467 }
468 return rv;
469 }
470
471 static unsigned short
472 IwmmxtSaturateU16 (signed int val, int * sat)
473 {
474 unsigned short rv;
475
476 if (val < 0)
477 {
478 rv = 0;
479 *sat = 1;
480 }
481 else if (val > 0xffff)
482 {
483 rv = 0xffff;
484 *sat = 1;
485 }
486 else
487 {
488 rv = val & 0xffff;
489 *sat = 0;
490 }
491 return rv;
492 }
493
494 static signed short
495 IwmmxtSaturateS16 (signed int val, int * sat)
496 {
497 signed short rv;
498
499 if (val < -0x8000)
500 {
501 rv = - 0x8000;
502 *sat = 1;
503 }
504 else if (val > 0x7fff)
505 {
506 rv = 0x7fff;
507 *sat = 1;
508 }
509 else
510 {
511 rv = val & 0xffff;
512 *sat = 0;
513 }
514 return rv;
515 }
516
517 static unsigned long
518 IwmmxtSaturateU32 (signed long long val, int * sat)
519 {
520 unsigned long rv;
521
522 if (val < 0)
523 {
524 rv = 0;
525 *sat = 1;
526 }
527 else if (val > 0xffffffff)
528 {
529 rv = 0xffffffff;
530 *sat = 1;
531 }
532 else
533 {
534 rv = val & 0xffffffff;
535 *sat = 0;
536 }
537 return rv;
538 }
539
540 static signed long
541 IwmmxtSaturateS32 (signed long long val, int * sat)
542 {
543 signed long rv;
544
545 if (val < -0x80000000LL)
546 {
547 rv = -0x80000000;
548 *sat = 1;
549 }
550 else if (val > 0x7fffffff)
551 {
552 rv = 0x7fffffff;
553 *sat = 1;
554 }
555 else
556 {
557 rv = val & 0xffffffff;
558 *sat = 0;
559 }
560 return rv;
561 }
562
563 /* Intel(r) Wireless MMX(tm) technology Acessor functions. */
564
565 unsigned
566 IwmmxtLDC (ARMul_State * state ATTRIBUTE_UNUSED,
567 unsigned type ATTRIBUTE_UNUSED,
568 ARMword instr,
569 ARMword data)
570 {
571 return ARMul_CANT;
572 }
573
574 unsigned
575 IwmmxtSTC (ARMul_State * state ATTRIBUTE_UNUSED,
576 unsigned type ATTRIBUTE_UNUSED,
577 ARMword instr,
578 ARMword * data)
579 {
580 return ARMul_CANT;
581 }
582
583 unsigned
584 IwmmxtMRC (ARMul_State * state ATTRIBUTE_UNUSED,
585 unsigned type ATTRIBUTE_UNUSED,
586 ARMword instr,
587 ARMword * value)
588 {
589 return ARMul_CANT;
590 }
591
592 unsigned
593 IwmmxtMCR (ARMul_State * state ATTRIBUTE_UNUSED,
594 unsigned type ATTRIBUTE_UNUSED,
595 ARMword instr,
596 ARMword value)
597 {
598 return ARMul_CANT;
599 }
600
601 unsigned
602 IwmmxtCDP (ARMul_State * state, unsigned type, ARMword instr)
603 {
604 return ARMul_CANT;
605 }
606
607 /* Intel(r) Wireless MMX(tm) technology instruction implementations. */
608
609 static int
610 TANDC (ARMul_State * state, ARMword instr)
611 {
612 ARMword cpsr;
613
614 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
615 return ARMul_CANT;
616
617 #ifdef DEBUG
618 fprintf (stderr, "tandc\n");
619 #endif
620
621 /* The Rd field must be r15. */
622 if (BITS (12, 15) != 15)
623 return ARMul_CANT;
624
625 /* The CRn field must be r3. */
626 if (BITS (16, 19) != 3)
627 return ARMul_CANT;
628
629 /* The CRm field must be r0. */
630 if (BITS (0, 3) != 0)
631 return ARMul_CANT;
632
633 cpsr = ARMul_GetCPSR (state) & 0x0fffffff;
634
635 switch (BITS (22, 23))
636 {
637 case Bqual:
638 cpsr |= ( (wCBITS (wCASF, 28, 31) & wCBITS (wCASF, 24, 27)
639 & wCBITS (wCASF, 20, 23) & wCBITS (wCASF, 16, 19)
640 & wCBITS (wCASF, 12, 15) & wCBITS (wCASF, 8, 11)
641 & wCBITS (wCASF, 4, 7) & wCBITS (wCASF, 0, 3)) << 28);
642 break;
643
644 case Hqual:
645 cpsr |= ( (wCBITS (wCASF, 28, 31) & wCBITS (wCASF, 20, 23)
646 & wCBITS (wCASF, 12, 15) & wCBITS (wCASF, 4, 7)) << 28);
647 break;
648
649 case Wqual:
650 cpsr |= ((wCBITS (wCASF, 28, 31) & wCBITS (wCASF, 12, 15)) << 28);
651 break;
652
653 default:
654 ARMul_UndefInstr (state, instr);
655 return ARMul_DONE;
656 }
657
658 ARMul_SetCPSR (state, cpsr);
659
660 return ARMul_DONE;
661 }
662
663 static int
664 TBCST (ARMul_State * state, ARMword instr)
665 {
666 ARMdword Rn;
667 int wRd;
668
669 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
670 return ARMul_CANT;
671
672 #ifdef DEBUG
673 fprintf (stderr, "tbcst\n");
674 #endif
675
676 Rn = state->Reg [BITS (12, 15)];
677 if (BITS (12, 15) == 15)
678 Rn &= 0xfffffffc;
679
680 wRd = BITS (16, 19);
681
682 switch (BITS (6, 7))
683 {
684 case Bqual:
685 Rn &= 0xff;
686 wR [wRd] = (Rn << 56) | (Rn << 48) | (Rn << 40) | (Rn << 32)
687 | (Rn << 24) | (Rn << 16) | (Rn << 8) | Rn;
688 break;
689
690 case Hqual:
691 Rn &= 0xffff;
692 wR [wRd] = (Rn << 48) | (Rn << 32) | (Rn << 16) | Rn;
693 break;
694
695 case Wqual:
696 Rn &= 0xffffffff;
697 wR [wRd] = (Rn << 32) | Rn;
698 break;
699
700 default:
701 ARMul_UndefInstr (state, instr);
702 break;
703 }
704
705 wC [wCon] |= WCON_MUP;
706 return ARMul_DONE;
707 }
708
709 static int
710 TEXTRC (ARMul_State * state, ARMword instr)
711 {
712 ARMword cpsr;
713 ARMword selector;
714
715 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
716 return ARMul_CANT;
717
718 #ifdef DEBUG
719 fprintf (stderr, "textrc\n");
720 #endif
721
722 /* The Rd field must be r15. */
723 if (BITS (12, 15) != 15)
724 return ARMul_CANT;
725
726 /* The CRn field must be r3. */
727 if (BITS (16, 19) != 3)
728 return ARMul_CANT;
729
730 /* The CRm field must be 0xxx. */
731 if (BIT (3) != 0)
732 return ARMul_CANT;
733
734 selector = BITS (0, 2);
735 cpsr = ARMul_GetCPSR (state) & 0x0fffffff;
736
737 switch (BITS (22, 23))
738 {
739 case Bqual: selector *= 4; break;
740 case Hqual: selector = ((selector & 3) * 8) + 4; break;
741 case Wqual: selector = ((selector & 1) * 16) + 12; break;
742
743 default:
744 ARMul_UndefInstr (state, instr);
745 return ARMul_DONE;
746 }
747
748 cpsr |= wCBITS (wCASF, selector, selector + 3) << 28;
749 ARMul_SetCPSR (state, cpsr);
750
751 return ARMul_DONE;
752 }
753
754 static int
755 TEXTRM (ARMul_State * state, ARMword instr)
756 {
757 ARMword Rd;
758 int offset;
759 int wRn;
760 int sign;
761
762 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
763 return ARMul_CANT;
764
765 #ifdef DEBUG
766 fprintf (stderr, "textrm\n");
767 #endif
768
769 wRn = BITS (16, 19);
770 sign = BIT (3);
771 offset = BITS (0, 2);
772
773 switch (BITS (22, 23))
774 {
775 case Bqual:
776 offset *= 8;
777 Rd = wRBITS (wRn, offset, offset + 7);
778 if (sign)
779 Rd = EXTEND8 (Rd);
780 break;
781
782 case Hqual:
783 offset = (offset & 3) * 16;
784 Rd = wRBITS (wRn, offset, offset + 15);
785 if (sign)
786 Rd = EXTEND16 (Rd);
787 break;
788
789 case Wqual:
790 offset = (offset & 1) * 32;
791 Rd = wRBITS (wRn, offset, offset + 31);
792 break;
793
794 default:
795 ARMul_UndefInstr (state, instr);
796 return ARMul_DONE;
797 }
798
799 if (BITS (12, 15) == 15)
800 ARMul_UndefInstr (state, instr);
801 else
802 state->Reg [BITS (12, 15)] = Rd;
803
804 return ARMul_DONE;
805 }
806
807 static int
808 TINSR (ARMul_State * state, ARMword instr)
809 {
810 ARMdword data;
811 ARMword offset;
812 int wRd;
813
814 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
815 return ARMul_CANT;
816
817 #ifdef DEBUG
818 fprintf (stderr, "tinsr\n");
819 #endif
820
821 wRd = BITS (16, 19);
822 data = state->Reg [BITS (12, 15)];
823 offset = BITS (0, 2);
824
825 switch (BITS (6, 7))
826 {
827 case Bqual:
828 data &= 0xff;
829 switch (offset)
830 {
831 case 0: wR [wRd] = data | (wRBITS (wRd, 8, 63) << 8); break;
832 case 1: wR [wRd] = wRBITS (wRd, 0, 7) | (data << 8) | (wRBITS (wRd, 16, 63) << 16); break;
833 case 2: wR [wRd] = wRBITS (wRd, 0, 15) | (data << 16) | (wRBITS (wRd, 24, 63) << 24); break;
834 case 3: wR [wRd] = wRBITS (wRd, 0, 23) | (data << 24) | (wRBITS (wRd, 32, 63) << 32); break;
835 case 4: wR [wRd] = wRBITS (wRd, 0, 31) | (data << 32) | (wRBITS (wRd, 40, 63) << 40); break;
836 case 5: wR [wRd] = wRBITS (wRd, 0, 39) | (data << 40) | (wRBITS (wRd, 48, 63) << 48); break;
837 case 6: wR [wRd] = wRBITS (wRd, 0, 47) | (data << 48) | (wRBITS (wRd, 56, 63) << 56); break;
838 case 7: wR [wRd] = wRBITS (wRd, 0, 55) | (data << 56); break;
839 }
840 break;
841
842 case Hqual:
843 data &= 0xffff;
844
845 switch (offset & 3)
846 {
847 case 0: wR [wRd] = data | (wRBITS (wRd, 16, 63) << 16); break;
848 case 1: wR [wRd] = wRBITS (wRd, 0, 15) | (data << 16) | (wRBITS (wRd, 32, 63) << 32); break;
849 case 2: wR [wRd] = wRBITS (wRd, 0, 31) | (data << 32) | (wRBITS (wRd, 48, 63) << 48); break;
850 case 3: wR [wRd] = wRBITS (wRd, 0, 47) | (data << 48); break;
851 }
852 break;
853
854 case Wqual:
855 if (offset & 1)
856 wR [wRd] = wRBITS (wRd, 0, 31) | (data << 32);
857 else
858 wR [wRd] = (wRBITS (wRd, 32, 63) << 32) | data;
859 break;
860
861 default:
862 ARMul_UndefInstr (state, instr);
863 break;
864 }
865
866 wC [wCon] |= WCON_MUP;
867 return ARMul_DONE;
868 }
869
870 static int
871 TMCR (ARMul_State * state, ARMword instr)
872 {
873 ARMword val;
874 int wCreg;
875
876 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
877 return ARMul_CANT;
878
879 #ifdef DEBUG
880 fprintf (stderr, "tmcr\n");
881 #endif
882
883 if (BITS (0, 3) != 0)
884 return ARMul_CANT;
885
886 val = state->Reg [BITS (12, 15)];
887 if (BITS (12, 15) == 15)
888 val &= 0xfffffffc;
889
890 wCreg = BITS (16, 19);
891
892 switch (wCreg)
893 {
894 case wCID:
895 /* The wCID register is read only. */
896 break;
897
898 case wCon:
899 /* Writing to the MUP or CUP bits clears them. */
900 wC [wCon] &= ~ (val & 0x3);
901 break;
902
903 case wCSSF:
904 /* Only the bottom 8 bits can be written to.
905 The higher bits write as zero. */
906 wC [wCSSF] = (val & 0xff);
907 wC [wCon] |= WCON_CUP;
908 break;
909
910 default:
911 wC [wCreg] = val;
912 wC [wCon] |= WCON_CUP;
913 break;
914 }
915
916 return ARMul_DONE;
917 }
918
919 static int
920 TMCRR (ARMul_State * state, ARMword instr)
921 {
922 ARMdword RdHi = state->Reg [BITS (16, 19)];
923 ARMword RdLo = state->Reg [BITS (12, 15)];
924
925 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
926 return ARMul_CANT;
927
928 #ifdef DEBUG
929 fprintf (stderr, "tmcrr\n");
930 #endif
931
932 if ((BITS (16, 19) == 15) || (BITS (12, 15) == 15))
933 return ARMul_CANT;
934
935 wR [BITS (0, 3)] = (RdHi << 32) | RdLo;
936
937 wC [wCon] |= WCON_MUP;
938
939 return ARMul_DONE;
940 }
941
942 static int
943 TMIA (ARMul_State * state, ARMword instr)
944 {
945 signed long long a, b;
946
947 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
948 return ARMul_CANT;
949
950 #ifdef DEBUG
951 fprintf (stderr, "tmia\n");
952 #endif
953
954 if ((BITS (0, 3) == 15) || (BITS (12, 15) == 15))
955 {
956 ARMul_UndefInstr (state, instr);
957 return ARMul_DONE;
958 }
959
960 a = state->Reg [BITS (0, 3)];
961 b = state->Reg [BITS (12, 15)];
962
963 a = EXTEND32 (a);
964 b = EXTEND32 (b);
965
966 wR [BITS (5, 8)] += a * b;
967 wC [wCon] |= WCON_MUP;
968
969 return ARMul_DONE;
970 }
971
972 static int
973 TMIAPH (ARMul_State * state, ARMword instr)
974 {
975 signed long a, b, result;
976 signed long long r;
977 ARMword Rm = state->Reg [BITS (0, 3)];
978 ARMword Rs = state->Reg [BITS (12, 15)];
979
980 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
981 return ARMul_CANT;
982
983 #ifdef DEBUG
984 fprintf (stderr, "tmiaph\n");
985 #endif
986
987 if (BITS (0, 3) == 15 || BITS (12, 15) == 15)
988 {
989 ARMul_UndefInstr (state, instr);
990 return ARMul_DONE;
991 }
992
993 a = SUBSTR (Rs, ARMword, 16, 31);
994 b = SUBSTR (Rm, ARMword, 16, 31);
995
996 a = EXTEND16 (a);
997 b = EXTEND16 (b);
998
999 result = a * b;
1000
1001 r = result;
1002 r = EXTEND32 (r);
1003
1004 wR [BITS (5, 8)] += r;
1005
1006 a = SUBSTR (Rs, ARMword, 0, 15);
1007 b = SUBSTR (Rm, ARMword, 0, 15);
1008
1009 a = EXTEND16 (a);
1010 b = EXTEND16 (b);
1011
1012 result = a * b;
1013
1014 r = result;
1015 r = EXTEND32 (r);
1016
1017 wR [BITS (5, 8)] += r;
1018 wC [wCon] |= WCON_MUP;
1019
1020 return ARMul_DONE;
1021 }
1022
1023 static int
1024 TMIAxy (ARMul_State * state, ARMword instr)
1025 {
1026 ARMword Rm;
1027 ARMword Rs;
1028 long long temp;
1029
1030 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
1031 return ARMul_CANT;
1032
1033 #ifdef DEBUG
1034 fprintf (stderr, "tmiaxy\n");
1035 #endif
1036
1037 if (BITS (0, 3) == 15 || BITS (12, 15) == 15)
1038 {
1039 ARMul_UndefInstr (state, instr);
1040 return ARMul_DONE;
1041 }
1042
1043 Rm = state->Reg [BITS (0, 3)];
1044 if (BIT (17))
1045 Rm >>= 16;
1046 else
1047 Rm &= 0xffff;
1048
1049 Rs = state->Reg [BITS (12, 15)];
1050 if (BIT (16))
1051 Rs >>= 16;
1052 else
1053 Rs &= 0xffff;
1054
1055 if (Rm & (1 << 15))
1056 Rm -= 1 << 16;
1057
1058 if (Rs & (1 << 15))
1059 Rs -= 1 << 16;
1060
1061 Rm *= Rs;
1062 temp = Rm;
1063
1064 if (temp & (1 << 31))
1065 temp -= 1ULL << 32;
1066
1067 wR [BITS (5, 8)] += temp;
1068 wC [wCon] |= WCON_MUP;
1069
1070 return ARMul_DONE;
1071 }
1072
1073 static int
1074 TMOVMSK (ARMul_State * state, ARMword instr)
1075 {
1076 ARMdword result;
1077 int wRn;
1078
1079 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
1080 return ARMul_CANT;
1081
1082 #ifdef DEBUG
1083 fprintf (stderr, "tmovmsk\n");
1084 #endif
1085
1086 /* The CRm field must be r0. */
1087 if (BITS (0, 3) != 0)
1088 return ARMul_CANT;
1089
1090 wRn = BITS (16, 19);
1091
1092 switch (BITS (22, 23))
1093 {
1094 case Bqual:
1095 result = ( (wRBITS (wRn, 63, 63) << 7)
1096 | (wRBITS (wRn, 55, 55) << 6)
1097 | (wRBITS (wRn, 47, 47) << 5)
1098 | (wRBITS (wRn, 39, 39) << 4)
1099 | (wRBITS (wRn, 31, 31) << 3)
1100 | (wRBITS (wRn, 23, 23) << 2)
1101 | (wRBITS (wRn, 15, 15) << 1)
1102 | (wRBITS (wRn, 7, 7) << 0));
1103 break;
1104
1105 case Hqual:
1106 result = ( (wRBITS (wRn, 63, 63) << 3)
1107 | (wRBITS (wRn, 47, 47) << 2)
1108 | (wRBITS (wRn, 31, 31) << 1)
1109 | (wRBITS (wRn, 15, 15) << 0));
1110 break;
1111
1112 case Wqual:
1113 result = (wRBITS (wRn, 63, 63) << 1) | wRBITS (wRn, 31, 31);
1114 break;
1115
1116 default:
1117 ARMul_UndefInstr (state, instr);
1118 return ARMul_DONE;
1119 }
1120
1121 state->Reg [BITS (12, 15)] = result;
1122
1123 return ARMul_DONE;
1124 }
1125
1126 static int
1127 TMRC (ARMul_State * state, ARMword instr)
1128 {
1129 int reg = BITS (12, 15);
1130
1131 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
1132 return ARMul_CANT;
1133
1134 #ifdef DEBUG
1135 fprintf (stderr, "tmrc\n");
1136 #endif
1137
1138 if (BITS (0, 3) != 0)
1139 return ARMul_CANT;
1140
1141 if (reg == 15)
1142 ARMul_UndefInstr (state, instr);
1143 else
1144 state->Reg [reg] = wC [BITS (16, 19)];
1145
1146 return ARMul_DONE;
1147 }
1148
1149 static int
1150 TMRRC (ARMul_State * state, ARMword instr)
1151 {
1152 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
1153 return ARMul_CANT;
1154
1155 #ifdef DEBUG
1156 fprintf (stderr, "tmrrc\n");
1157 #endif
1158
1159 if ((BITS (16, 19) == 15) || (BITS (12, 15) == 15) || (BITS (4, 11) != 0))
1160 ARMul_UndefInstr (state, instr);
1161 else
1162 {
1163 state->Reg [BITS (16, 19)] = wRBITS (BITS (0, 3), 32, 63);
1164 state->Reg [BITS (12, 15)] = wRBITS (BITS (0, 3), 0, 31);
1165 }
1166
1167 return ARMul_DONE;
1168 }
1169
1170 static int
1171 TORC (ARMul_State * state, ARMword instr)
1172 {
1173 ARMword cpsr = ARMul_GetCPSR (state);
1174
1175 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
1176 return ARMul_CANT;
1177
1178 #ifdef DEBUG
1179 fprintf (stderr, "torc\n");
1180 #endif
1181
1182 /* The Rd field must be r15. */
1183 if (BITS (12, 15) != 15)
1184 return ARMul_CANT;
1185
1186 /* The CRn field must be r3. */
1187 if (BITS (16, 19) != 3)
1188 return ARMul_CANT;
1189
1190 /* The CRm field must be r0. */
1191 if (BITS (0, 3) != 0)
1192 return ARMul_CANT;
1193
1194 cpsr &= 0x0fffffff;
1195
1196 switch (BITS (22, 23))
1197 {
1198 case Bqual:
1199 cpsr |= ( (wCBITS (wCASF, 28, 31) | wCBITS (wCASF, 24, 27)
1200 | wCBITS (wCASF, 20, 23) | wCBITS (wCASF, 16, 19)
1201 | wCBITS (wCASF, 12, 15) | wCBITS (wCASF, 8, 11)
1202 | wCBITS (wCASF, 4, 7) | wCBITS (wCASF, 0, 3)) << 28);
1203 break;
1204
1205 case Hqual:
1206 cpsr |= ( (wCBITS (wCASF, 28, 31) | wCBITS (wCASF, 20, 23)
1207 | wCBITS (wCASF, 12, 15) | wCBITS (wCASF, 4, 7)) << 28);
1208 break;
1209
1210 case Wqual:
1211 cpsr |= ((wCBITS (wCASF, 28, 31) | wCBITS (wCASF, 12, 15)) << 28);
1212 break;
1213
1214 default:
1215 ARMul_UndefInstr (state, instr);
1216 return ARMul_DONE;
1217 }
1218
1219 ARMul_SetCPSR (state, cpsr);
1220
1221 return ARMul_DONE;
1222 }
1223
1224 static int
1225 WACC (ARMul_State * state, ARMword instr)
1226 {
1227 int wRn;
1228
1229 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
1230 return ARMul_CANT;
1231
1232 #ifdef DEBUG
1233 fprintf (stderr, "wacc\n");
1234 #endif
1235
1236 wRn = BITS (16, 19);
1237
1238 switch (BITS (22, 23))
1239 {
1240 case Bqual:
1241 wR [BITS (12, 15)] =
1242 wRBITS (wRn, 56, 63) + wRBITS (wRn, 48, 55)
1243 + wRBITS (wRn, 40, 47) + wRBITS (wRn, 32, 39)
1244 + wRBITS (wRn, 24, 31) + wRBITS (wRn, 16, 23)
1245 + wRBITS (wRn, 8, 15) + wRBITS (wRn, 0, 7);
1246 break;
1247
1248 case Hqual:
1249 wR [BITS (12, 15)] =
1250 wRBITS (wRn, 48, 63) + wRBITS (wRn, 32, 47)
1251 + wRBITS (wRn, 16, 31) + wRBITS (wRn, 0, 15);
1252 break;
1253
1254 case Wqual:
1255 wR [BITS (12, 15)] = wRBITS (wRn, 32, 63) + wRBITS (wRn, 0, 31);
1256 break;
1257
1258 default:
1259 ARMul_UndefInstr (state, instr);
1260 break;
1261 }
1262
1263 wC [wCon] |= WCON_MUP;
1264 return ARMul_DONE;
1265 }
1266
1267 static int
1268 WADD (ARMul_State * state, ARMword instr)
1269 {
1270 ARMdword r = 0;
1271 ARMdword x;
1272 ARMdword s;
1273 ARMword psr = 0;
1274 int i;
1275 int carry;
1276 int overflow;
1277 int satrv[8];
1278
1279 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
1280 return ARMul_CANT;
1281
1282 #ifdef DEBUG
1283 fprintf (stderr, "wadd\n");
1284 #endif
1285
1286 /* Add two numbers using the specified function,
1287 leaving setting the carry bit as required. */
1288 #define ADDx(x, y, m, f) \
1289 (*f) (wRBITS (BITS (16, 19), (x), (y)) & (m), \
1290 wRBITS (BITS ( 0, 3), (x), (y)) & (m), \
1291 & carry, & overflow)
1292
1293 switch (BITS (22, 23))
1294 {
1295 case Bqual:
1296 for (i = 0; i < 8; i++)
1297 {
1298 switch (BITS (20, 21))
1299 {
1300 case NoSaturation:
1301 s = ADDx ((i * 8), (i * 8) + 7, 0xff, AddS8);
1302 satrv [BITIDX8 (i)] = 0;
1303 r |= (s & 0xff) << (i * 8);
1304 SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i);
1305 SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i);
1306 SIMD8_SET (psr, carry, SIMD_CBIT, i);
1307 SIMD8_SET (psr, overflow, SIMD_VBIT, i);
1308 break;
1309
1310 case UnsignedSaturation:
1311 s = ADDx ((i * 8), (i * 8) + 7, 0xff, AddU8);
1312 x = IwmmxtSaturateU8 (s, satrv + BITIDX8 (i));
1313 r |= (x & 0xff) << (i * 8);
1314 SIMD8_SET (psr, NBIT8 (x), SIMD_NBIT, i);
1315 SIMD8_SET (psr, ZBIT8 (x), SIMD_ZBIT, i);
1316 if (! satrv [BITIDX8 (i)])
1317 {
1318 SIMD8_SET (psr, carry, SIMD_CBIT, i);
1319 SIMD8_SET (psr, overflow, SIMD_VBIT, i);
1320 }
1321 break;
1322
1323 case SignedSaturation:
1324 s = ADDx ((i * 8), (i * 8) + 7, 0xff, AddS8);
1325 x = IwmmxtSaturateS8 (s, satrv + BITIDX8 (i));
1326 r |= (x & 0xff) << (i * 8);
1327 SIMD8_SET (psr, NBIT8 (x), SIMD_NBIT, i);
1328 SIMD8_SET (psr, ZBIT8 (x), SIMD_ZBIT, i);
1329 if (! satrv [BITIDX8 (i)])
1330 {
1331 SIMD8_SET (psr, carry, SIMD_CBIT, i);
1332 SIMD8_SET (psr, overflow, SIMD_VBIT, i);
1333 }
1334 break;
1335
1336 default:
1337 ARMul_UndefInstr (state, instr);
1338 return ARMul_DONE;
1339 }
1340 }
1341 break;
1342
1343 case Hqual:
1344 satrv[0] = satrv[2] = satrv[4] = satrv[6] = 0;
1345
1346 for (i = 0; i < 4; i++)
1347 {
1348 switch (BITS (20, 21))
1349 {
1350 case NoSaturation:
1351 s = ADDx ((i * 16), (i * 16) + 15, 0xffff, AddS16);
1352 satrv [BITIDX16 (i)] = 0;
1353 r |= (s & 0xffff) << (i * 16);
1354 SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
1355 SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
1356 SIMD16_SET (psr, carry, SIMD_CBIT, i);
1357 SIMD16_SET (psr, overflow, SIMD_VBIT, i);
1358 break;
1359
1360 case UnsignedSaturation:
1361 s = ADDx ((i * 16), (i * 16) + 15, 0xffff, AddU16);
1362 x = IwmmxtSaturateU16 (s, satrv + BITIDX16 (i));
1363 r |= (x & 0xffff) << (i * 16);
1364 SIMD16_SET (psr, NBIT16 (x), SIMD_NBIT, i);
1365 SIMD16_SET (psr, ZBIT16 (x), SIMD_ZBIT, i);
1366 if (! satrv [BITIDX16 (i)])
1367 {
1368 SIMD16_SET (psr, carry, SIMD_CBIT, i);
1369 SIMD16_SET (psr, overflow, SIMD_VBIT, i);
1370 }
1371 break;
1372
1373 case SignedSaturation:
1374 s = ADDx ((i * 16), (i * 16) + 15, 0xffff, AddS16);
1375 x = IwmmxtSaturateS16 (s, satrv + BITIDX16 (i));
1376 r |= (x & 0xffff) << (i * 16);
1377 SIMD16_SET (psr, NBIT16 (x), SIMD_NBIT, i);
1378 SIMD16_SET (psr, ZBIT16 (x), SIMD_ZBIT, i);
1379 if (! satrv [BITIDX16 (i)])
1380 {
1381 SIMD16_SET (psr, carry, SIMD_CBIT, i);
1382 SIMD16_SET (psr, overflow, SIMD_VBIT, i);
1383 }
1384 break;
1385
1386 default:
1387 ARMul_UndefInstr (state, instr);
1388 return ARMul_DONE;
1389 }
1390 }
1391 break;
1392
1393 case Wqual:
1394 satrv[0] = satrv[1] = satrv[2] = satrv[4] = satrv[5] = satrv[6] = 0;
1395
1396 for (i = 0; i < 2; i++)
1397 {
1398 switch (BITS (20, 21))
1399 {
1400 case NoSaturation:
1401 s = ADDx ((i * 32), (i * 32) + 31, 0xffffffff, AddS32);
1402 satrv [BITIDX32 (i)] = 0;
1403 r |= (s & 0xffffffff) << (i * 32);
1404 SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
1405 SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
1406 SIMD32_SET (psr, carry, SIMD_CBIT, i);
1407 SIMD32_SET (psr, overflow, SIMD_VBIT, i);
1408 break;
1409
1410 case UnsignedSaturation:
1411 s = ADDx ((i * 32), (i * 32) + 31, 0xffffffff, AddU32);
1412 x = IwmmxtSaturateU32 (s, satrv + BITIDX32 (i));
1413 r |= (x & 0xffffffff) << (i * 32);
1414 SIMD32_SET (psr, NBIT32 (x), SIMD_NBIT, i);
1415 SIMD32_SET (psr, ZBIT32 (x), SIMD_ZBIT, i);
1416 if (! satrv [BITIDX32 (i)])
1417 {
1418 SIMD32_SET (psr, carry, SIMD_CBIT, i);
1419 SIMD32_SET (psr, overflow, SIMD_VBIT, i);
1420 }
1421 break;
1422
1423 case SignedSaturation:
1424 s = ADDx ((i * 32), (i * 32) + 31, 0xffffffff, AddS32);
1425 x = IwmmxtSaturateS32 (s, satrv + BITIDX32 (i));
1426 r |= (x & 0xffffffff) << (i * 32);
1427 SIMD32_SET (psr, NBIT32 (x), SIMD_NBIT, i);
1428 SIMD32_SET (psr, ZBIT32 (x), SIMD_ZBIT, i);
1429 if (! satrv [BITIDX32 (i)])
1430 {
1431 SIMD32_SET (psr, carry, SIMD_CBIT, i);
1432 SIMD32_SET (psr, overflow, SIMD_VBIT, i);
1433 }
1434 break;
1435
1436 default:
1437 ARMul_UndefInstr (state, instr);
1438 return ARMul_DONE;
1439 }
1440 }
1441 break;
1442
1443 default:
1444 ARMul_UndefInstr (state, instr);
1445 return ARMul_DONE;
1446 }
1447
1448 wC [wCASF] = psr;
1449 wR [BITS (12, 15)] = r;
1450 wC [wCon] |= (WCON_MUP | WCON_CUP);
1451
1452 SET_wCSSFvec (satrv);
1453
1454 #undef ADDx
1455
1456 return ARMul_DONE;
1457 }
1458
1459 static int
1460 WALIGNI (ARMword instr)
1461 {
1462 int shift = BITS (20, 22) * 8;
1463
1464 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
1465 return ARMul_CANT;
1466
1467 #ifdef DEBUG
1468 fprintf (stderr, "waligni\n");
1469 #endif
1470
1471 if (shift)
1472 wR [BITS (12, 15)] =
1473 wRBITS (BITS (16, 19), shift, 63)
1474 | (wRBITS (BITS (0, 3), 0, shift) << ((64 - shift)));
1475 else
1476 wR [BITS (12, 15)] = wR [BITS (16, 19)];
1477
1478 wC [wCon] |= WCON_MUP;
1479 return ARMul_DONE;
1480 }
1481
1482 static int
1483 WALIGNR (ARMul_State * state, ARMword instr)
1484 {
1485 int shift = (wC [BITS (20, 21) + 8] & 0x7) * 8;
1486
1487 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
1488 return ARMul_CANT;
1489
1490 #ifdef DEBUG
1491 fprintf (stderr, "walignr\n");
1492 #endif
1493
1494 if (shift)
1495 wR [BITS (12, 15)] =
1496 wRBITS (BITS (16, 19), shift, 63)
1497 | (wRBITS (BITS (0, 3), 0, shift) << ((64 - shift)));
1498 else
1499 wR [BITS (12, 15)] = wR [BITS (16, 19)];
1500
1501 wC [wCon] |= WCON_MUP;
1502 return ARMul_DONE;
1503 }
1504
1505 static int
1506 WAND (ARMword instr)
1507 {
1508 ARMdword result;
1509 ARMword psr = 0;
1510
1511 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
1512 return ARMul_CANT;
1513
1514 #ifdef DEBUG
1515 fprintf (stderr, "wand\n");
1516 #endif
1517
1518 result = wR [BITS (16, 19)] & wR [BITS (0, 3)];
1519 wR [BITS (12, 15)] = result;
1520
1521 SIMD64_SET (psr, (result == 0), SIMD_ZBIT);
1522 SIMD64_SET (psr, (result & (1ULL << 63)), SIMD_NBIT);
1523
1524 wC [wCASF] = psr;
1525 wC [wCon] |= (WCON_CUP | WCON_MUP);
1526
1527 return ARMul_DONE;
1528 }
1529
1530 static int
1531 WANDN (ARMword instr)
1532 {
1533 ARMdword result;
1534 ARMword psr = 0;
1535
1536 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
1537 return ARMul_CANT;
1538
1539 #ifdef DEBUG
1540 fprintf (stderr, "wandn\n");
1541 #endif
1542
1543 result = wR [BITS (16, 19)] & ~ wR [BITS (0, 3)];
1544 wR [BITS (12, 15)] = result;
1545
1546 SIMD64_SET (psr, (result == 0), SIMD_ZBIT);
1547 SIMD64_SET (psr, (result & (1ULL << 63)), SIMD_NBIT);
1548
1549 wC [wCASF] = psr;
1550 wC [wCon] |= (WCON_CUP | WCON_MUP);
1551
1552 return ARMul_DONE;
1553 }
1554
1555 static int
1556 WAVG2 (ARMword instr)
1557 {
1558 ARMdword r = 0;
1559 ARMword psr = 0;
1560 ARMdword s;
1561 int i;
1562 int round = BIT (20) ? 1 : 0;
1563
1564 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
1565 return ARMul_CANT;
1566
1567 #ifdef DEBUG
1568 fprintf (stderr, "wavg2\n");
1569 #endif
1570
1571 #define AVG2x(x, y, m) (((wRBITS (BITS (16, 19), (x), (y)) & (m)) \
1572 + (wRBITS (BITS ( 0, 3), (x), (y)) & (m)) \
1573 + round) / 2)
1574
1575 if (BIT (22))
1576 {
1577 for (i = 0; i < 4; i++)
1578 {
1579 s = AVG2x ((i * 16), (i * 16) + 15, 0xffff) & 0xffff;
1580 SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
1581 r |= s << (i * 16);
1582 }
1583 }
1584 else
1585 {
1586 for (i = 0; i < 8; i++)
1587 {
1588 s = AVG2x ((i * 8), (i * 8) + 7, 0xff) & 0xff;
1589 SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i);
1590 r |= s << (i * 8);
1591 }
1592 }
1593
1594 wR [BITS (12, 15)] = r;
1595 wC [wCASF] = psr;
1596 wC [wCon] |= (WCON_CUP | WCON_MUP);
1597
1598 return ARMul_DONE;
1599 }
1600
1601 static int
1602 WCMPEQ (ARMul_State * state, ARMword instr)
1603 {
1604 ARMdword r = 0;
1605 ARMword psr = 0;
1606 ARMdword s;
1607 int i;
1608
1609 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
1610 return ARMul_CANT;
1611
1612 #ifdef DEBUG
1613 fprintf (stderr, "wcmpeq\n");
1614 #endif
1615
1616 switch (BITS (22, 23))
1617 {
1618 case Bqual:
1619 for (i = 0; i < 8; i++)
1620 {
1621 s = wRBYTE (BITS (16, 19), i) == wRBYTE (BITS (0, 3), i) ? 0xff : 0;
1622 r |= s << (i * 8);
1623 SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i);
1624 SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i);
1625 }
1626 break;
1627
1628 case Hqual:
1629 for (i = 0; i < 4; i++)
1630 {
1631 s = wRHALF (BITS (16, 19), i) == wRHALF (BITS (0, 3), i) ? 0xffff : 0;
1632 r |= s << (i * 16);
1633 SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
1634 SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
1635 }
1636 break;
1637
1638 case Wqual:
1639 for (i = 0; i < 2; i++)
1640 {
1641 s = wRWORD (BITS (16, 19), i) == wRWORD (BITS (0, 3), i) ? 0xffffffff : 0;
1642 r |= s << (i * 32);
1643 SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
1644 SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
1645 }
1646 break;
1647
1648 default:
1649 ARMul_UndefInstr (state, instr);
1650 return ARMul_DONE;
1651 }
1652
1653 wC [wCASF] = psr;
1654 wR [BITS (12, 15)] = r;
1655 wC [wCon] |= (WCON_CUP | WCON_MUP);
1656
1657 return ARMul_DONE;
1658 }
1659
1660 static int
1661 WCMPGT (ARMul_State * state, ARMword instr)
1662 {
1663 ARMdword r = 0;
1664 ARMword psr = 0;
1665 ARMdword s;
1666 int i;
1667
1668 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
1669 return ARMul_CANT;
1670
1671 #ifdef DEBUG
1672 fprintf (stderr, "wcmpgt\n");
1673 #endif
1674
1675 switch (BITS (22, 23))
1676 {
1677 case Bqual:
1678 if (BIT (21))
1679 {
1680 /* Use a signed comparison. */
1681 for (i = 0; i < 8; i++)
1682 {
1683 signed char a, b;
1684
1685 a = wRBYTE (BITS (16, 19), i);
1686 b = wRBYTE (BITS (0, 3), i);
1687
1688 s = (a > b) ? 0xff : 0;
1689 r |= s << (i * 8);
1690 SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i);
1691 SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i);
1692 }
1693 }
1694 else
1695 {
1696 for (i = 0; i < 8; i++)
1697 {
1698 s = (wRBYTE (BITS (16, 19), i) > wRBYTE (BITS (0, 3), i))
1699 ? 0xff : 0;
1700 r |= s << (i * 8);
1701 SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i);
1702 SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i);
1703 }
1704 }
1705 break;
1706
1707 case Hqual:
1708 if (BIT (21))
1709 {
1710 for (i = 0; i < 4; i++)
1711 {
1712 signed int a, b;
1713
1714 a = wRHALF (BITS (16, 19), i);
1715 a = EXTEND16 (a);
1716
1717 b = wRHALF (BITS (0, 3), i);
1718 b = EXTEND16 (b);
1719
1720 s = (a > b) ? 0xffff : 0;
1721 r |= s << (i * 16);
1722 SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
1723 SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
1724 }
1725 }
1726 else
1727 {
1728 for (i = 0; i < 4; i++)
1729 {
1730 s = (wRHALF (BITS (16, 19), i) > wRHALF (BITS (0, 3), i))
1731 ? 0xffff : 0;
1732 r |= s << (i * 16);
1733 SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
1734 SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
1735 }
1736 }
1737 break;
1738
1739 case Wqual:
1740 if (BIT (21))
1741 {
1742 for (i = 0; i < 2; i++)
1743 {
1744 signed long a, b;
1745
1746 a = EXTEND32 (wRWORD (BITS (16, 19), i));
1747 b = EXTEND32 (wRWORD (BITS (0, 3), i));
1748
1749 s = (a > b) ? 0xffffffff : 0;
1750 r |= s << (i * 32);
1751
1752 SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
1753 SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
1754 }
1755 }
1756 else
1757 {
1758 for (i = 0; i < 2; i++)
1759 {
1760 s = (wRWORD (BITS (16, 19), i) > wRWORD (BITS (0, 3), i))
1761 ? 0xffffffff : 0;
1762 r |= s << (i * 32);
1763 SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
1764 SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
1765 }
1766 }
1767 break;
1768
1769 default:
1770 ARMul_UndefInstr (state, instr);
1771 return ARMul_DONE;
1772 }
1773
1774 wC [wCASF] = psr;
1775 wR [BITS (12, 15)] = r;
1776 wC [wCon] |= (WCON_CUP | WCON_MUP);
1777
1778 return ARMul_DONE;
1779 }
1780
1781 static ARMword
1782 Compute_Iwmmxt_Address (ARMul_State * state, ARMword instr, int * pFailed)
1783 {
1784 ARMword Rn;
1785 ARMword addr;
1786 ARMword offset;
1787 ARMword multiplier;
1788
1789 * pFailed = 0;
1790 Rn = BITS (16, 19);
1791 addr = state->Reg [Rn];
1792 offset = BITS (0, 7);
1793 multiplier = BIT (8) ? 4 : 1;
1794
1795 if (BIT (24)) /* P */
1796 {
1797 /* Pre Indexed Addressing. */
1798 if (BIT (23))
1799 addr += offset * multiplier;
1800 else
1801 addr -= offset * multiplier;
1802
1803 /* Immediate Pre-Indexed. */
1804 if (BIT (21)) /* W */
1805 {
1806 if (Rn == 15)
1807 {
1808 /* Writeback into R15 is UNPREDICTABLE. */
1809 #ifdef DEBUG
1810 fprintf (stderr, "iWMMXt: writeback into r15\n");
1811 #endif
1812 * pFailed = 1;
1813 }
1814 else
1815 state->Reg [Rn] = addr;
1816 }
1817 }
1818 else
1819 {
1820 /* Post Indexed Addressing. */
1821 if (BIT (21)) /* W */
1822 {
1823 /* Handle the write back of the final address. */
1824 if (Rn == 15)
1825 {
1826 /* Writeback into R15 is UNPREDICTABLE. */
1827 #ifdef DEBUG
1828 fprintf (stderr, "iWMMXt: writeback into r15\n");
1829 #endif
1830 * pFailed = 1;
1831 }
1832 else
1833 {
1834 ARMword increment;
1835
1836 if (BIT (23))
1837 increment = offset * multiplier;
1838 else
1839 increment = - (offset * multiplier);
1840
1841 state->Reg [Rn] = addr + increment;
1842 }
1843 }
1844 else
1845 {
1846 /* P == 0, W == 0, U == 0 is UNPREDICTABLE. */
1847 if (BIT (23) == 0)
1848 {
1849 #ifdef DEBUG
1850 fprintf (stderr, "iWMMXt: undefined addressing mode\n");
1851 #endif
1852 * pFailed = 1;
1853 }
1854 }
1855 }
1856
1857 return addr;
1858 }
1859
1860 static ARMdword
1861 Iwmmxt_Load_Double_Word (ARMul_State * state, ARMword address)
1862 {
1863 ARMdword value;
1864
1865 /* The address must be aligned on a 8 byte boundary. */
1866 if (address & 0x7)
1867 {
1868 fprintf (stderr, "iWMMXt: At addr 0x%x: Unaligned double word load from 0x%x\n",
1869 (state->Reg[15] - 8) & ~0x3, address);
1870 #ifdef DEBUG
1871 #endif
1872 /* No need to check for alignment traps. An unaligned
1873 double word load with alignment trapping disabled is
1874 UNPREDICTABLE. */
1875 ARMul_Abort (state, ARMul_DataAbortV);
1876 }
1877
1878 /* Load the words. */
1879 if (! state->bigendSig)
1880 {
1881 value = ARMul_LoadWordN (state, address + 4);
1882 value <<= 32;
1883 value |= ARMul_LoadWordN (state, address);
1884 }
1885 else
1886 {
1887 value = ARMul_LoadWordN (state, address);
1888 value <<= 32;
1889 value |= ARMul_LoadWordN (state, address + 4);
1890 }
1891
1892 /* Check for data aborts. */
1893 if (state->Aborted)
1894 ARMul_Abort (state, ARMul_DataAbortV);
1895 else
1896 ARMul_Icycles (state, 2, 0L);
1897
1898 return value;
1899 }
1900
1901 static ARMword
1902 Iwmmxt_Load_Word (ARMul_State * state, ARMword address)
1903 {
1904 ARMword value;
1905
1906 /* Check for a misaligned address. */
1907 if (address & 3)
1908 {
1909 if ((read_cp15_reg (1, 0, 0) & ARMul_CP15_R1_ALIGN))
1910 ARMul_Abort (state, ARMul_DataAbortV);
1911 else
1912 address &= ~ 3;
1913 }
1914
1915 value = ARMul_LoadWordN (state, address);
1916
1917 if (state->Aborted)
1918 ARMul_Abort (state, ARMul_DataAbortV);
1919 else
1920 ARMul_Icycles (state, 1, 0L);
1921
1922 return value;
1923 }
1924
1925 static ARMword
1926 Iwmmxt_Load_Half_Word (ARMul_State * state, ARMword address)
1927 {
1928 ARMword value;
1929
1930 /* Check for a misaligned address. */
1931 if (address & 1)
1932 {
1933 if ((read_cp15_reg (1, 0, 0) & ARMul_CP15_R1_ALIGN))
1934 ARMul_Abort (state, ARMul_DataAbortV);
1935 else
1936 address &= ~ 1;
1937 }
1938
1939 value = ARMul_LoadHalfWord (state, address);
1940
1941 if (state->Aborted)
1942 ARMul_Abort (state, ARMul_DataAbortV);
1943 else
1944 ARMul_Icycles (state, 1, 0L);
1945
1946 return value;
1947 }
1948
1949 static ARMword
1950 Iwmmxt_Load_Byte (ARMul_State * state, ARMword address)
1951 {
1952 ARMword value;
1953
1954 value = ARMul_LoadByte (state, address);
1955
1956 if (state->Aborted)
1957 ARMul_Abort (state, ARMul_DataAbortV);
1958 else
1959 ARMul_Icycles (state, 1, 0L);
1960
1961 return value;
1962 }
1963
1964 static void
1965 Iwmmxt_Store_Double_Word (ARMul_State * state, ARMword address, ARMdword value)
1966 {
1967 /* The address must be aligned on a 8 byte boundary. */
1968 if (address & 0x7)
1969 {
1970 fprintf (stderr, "iWMMXt: At addr 0x%x: Unaligned double word store to 0x%x\n",
1971 (state->Reg[15] - 8) & ~0x3, address);
1972 #ifdef DEBUG
1973 #endif
1974 /* No need to check for alignment traps. An unaligned
1975 double word store with alignment trapping disabled is
1976 UNPREDICTABLE. */
1977 ARMul_Abort (state, ARMul_DataAbortV);
1978 }
1979
1980 /* Store the words. */
1981 if (! state->bigendSig)
1982 {
1983 ARMul_StoreWordN (state, address, value);
1984 ARMul_StoreWordN (state, address + 4, value >> 32);
1985 }
1986 else
1987 {
1988 ARMul_StoreWordN (state, address + 4, value);
1989 ARMul_StoreWordN (state, address, value >> 32);
1990 }
1991
1992 /* Check for data aborts. */
1993 if (state->Aborted)
1994 ARMul_Abort (state, ARMul_DataAbortV);
1995 else
1996 ARMul_Icycles (state, 2, 0L);
1997 }
1998
1999 static void
2000 Iwmmxt_Store_Word (ARMul_State * state, ARMword address, ARMword value)
2001 {
2002 /* Check for a misaligned address. */
2003 if (address & 3)
2004 {
2005 if ((read_cp15_reg (1, 0, 0) & ARMul_CP15_R1_ALIGN))
2006 ARMul_Abort (state, ARMul_DataAbortV);
2007 else
2008 address &= ~ 3;
2009 }
2010
2011 ARMul_StoreWordN (state, address, value);
2012
2013 if (state->Aborted)
2014 ARMul_Abort (state, ARMul_DataAbortV);
2015 }
2016
2017 static void
2018 Iwmmxt_Store_Half_Word (ARMul_State * state, ARMword address, ARMword value)
2019 {
2020 /* Check for a misaligned address. */
2021 if (address & 1)
2022 {
2023 if ((read_cp15_reg (1, 0, 0) & ARMul_CP15_R1_ALIGN))
2024 ARMul_Abort (state, ARMul_DataAbortV);
2025 else
2026 address &= ~ 1;
2027 }
2028
2029 ARMul_StoreHalfWord (state, address, value);
2030
2031 if (state->Aborted)
2032 ARMul_Abort (state, ARMul_DataAbortV);
2033 }
2034
2035 static void
2036 Iwmmxt_Store_Byte (ARMul_State * state, ARMword address, ARMword value)
2037 {
2038 ARMul_StoreByte (state, address, value);
2039
2040 if (state->Aborted)
2041 ARMul_Abort (state, ARMul_DataAbortV);
2042 }
2043
2044 static int
2045 WLDR (ARMul_State * state, ARMword instr)
2046 {
2047 ARMword address;
2048 int failed;
2049
2050 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
2051 return ARMul_CANT;
2052
2053 #ifdef DEBUG
2054 fprintf (stderr, "wldr\n");
2055 #endif
2056
2057 address = Compute_Iwmmxt_Address (state, instr, & failed);
2058 if (failed)
2059 return ARMul_CANT;
2060
2061 if (BITS (28, 31) == 0xf)
2062 {
2063 /* WLDRW wCx */
2064 wC [BITS (12, 15)] = Iwmmxt_Load_Word (state, address);
2065 }
2066 else if (BIT (8) == 0)
2067 {
2068 if (BIT (22) == 0)
2069 /* WLDRB */
2070 wR [BITS (12, 15)] = Iwmmxt_Load_Byte (state, address);
2071 else
2072 /* WLDRH */
2073 wR [BITS (12, 15)] = Iwmmxt_Load_Half_Word (state, address);
2074 }
2075 else
2076 {
2077 if (BIT (22) == 0)
2078 /* WLDRW wRd */
2079 wR [BITS (12, 15)] = Iwmmxt_Load_Word (state, address);
2080 else
2081 /* WLDRD */
2082 wR [BITS (12, 15)] = Iwmmxt_Load_Double_Word (state, address);
2083 }
2084
2085 wC [wCon] |= WCON_MUP;
2086
2087 return ARMul_DONE;
2088 }
2089
2090 static int
2091 WMAC (ARMword instr)
2092 {
2093 int i;
2094 ARMdword t = 0;
2095 ARMword a, b;
2096
2097 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
2098 return ARMul_CANT;
2099
2100 #ifdef DEBUG
2101 fprintf (stderr, "wmac\n");
2102 #endif
2103
2104 for (i = 0; i < 4; i++)
2105 {
2106 if (BIT (21))
2107 {
2108 /* Signed. */
2109 signed long s;
2110
2111 a = wRHALF (BITS (16, 19), i);
2112 a = EXTEND16 (a);
2113
2114 b = wRHALF (BITS (0, 3), i);
2115 b = EXTEND16 (b);
2116
2117 s = (signed long) a * (signed long) b;
2118
2119 t = t + (ARMdword) s;
2120 }
2121 else
2122 {
2123 /* Unsigned. */
2124 a = wRHALF (BITS (16, 19), i);
2125 b = wRHALF (BITS ( 0, 3), i);
2126
2127 t += a * b;
2128 }
2129 }
2130
2131 if (BIT (21))
2132 t = EXTEND32 (t);
2133 else
2134 t &= 0xffffffff;
2135
2136 if (BIT (20))
2137 wR [BITS (12, 15)] = t;
2138 else
2139 wR[BITS (12, 15)] += t;
2140
2141 wC [wCon] |= WCON_MUP;
2142
2143 return ARMul_DONE;
2144 }
2145
2146 static int
2147 WMADD (ARMword instr)
2148 {
2149 ARMdword r = 0;
2150 int i;
2151
2152 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
2153 return ARMul_CANT;
2154
2155 #ifdef DEBUG
2156 fprintf (stderr, "wmadd\n");
2157 #endif
2158
2159 for (i = 0; i < 2; i++)
2160 {
2161 ARMdword s1, s2;
2162
2163 if (BIT (21)) /* Signed. */
2164 {
2165 signed long a, b;
2166
2167 a = wRHALF (BITS (16, 19), i * 2);
2168 a = EXTEND16 (a);
2169
2170 b = wRHALF (BITS (0, 3), i * 2);
2171 b = EXTEND16 (b);
2172
2173 s1 = (ARMdword) (a * b);
2174
2175 a = wRHALF (BITS (16, 19), i * 2 + 1);
2176 a = EXTEND16 (a);
2177
2178 b = wRHALF (BITS (0, 3), i * 2 + 1);
2179 b = EXTEND16 (b);
2180
2181 s2 = (ARMdword) (a * b);
2182 }
2183 else /* Unsigned. */
2184 {
2185 unsigned long a, b;
2186
2187 a = wRHALF (BITS (16, 19), i * 2);
2188 b = wRHALF (BITS ( 0, 3), i * 2);
2189
2190 s1 = (ARMdword) (a * b);
2191
2192 a = wRHALF (BITS (16, 19), i * 2 + 1);
2193 b = wRHALF (BITS ( 0, 3), i * 2 + 1);
2194
2195 s2 = (ARMdword) a * b;
2196 }
2197
2198 r |= (ARMdword) ((s1 + s2) & 0xffffffff) << (i ? 32 : 0);
2199 }
2200
2201 wR [BITS (12, 15)] = r;
2202 wC [wCon] |= WCON_MUP;
2203
2204 return ARMul_DONE;
2205 }
2206
2207 static int
2208 WMAX (ARMul_State * state, ARMword instr)
2209 {
2210 ARMdword r = 0;
2211 ARMdword s;
2212 int i;
2213
2214 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
2215 return ARMul_CANT;
2216
2217 #ifdef DEBUG
2218 fprintf (stderr, "wmax\n");
2219 #endif
2220
2221 switch (BITS (22, 23))
2222 {
2223 case Bqual:
2224 for (i = 0; i < 8; i++)
2225 if (BIT (21)) /* Signed. */
2226 {
2227 int a, b;
2228
2229 a = wRBYTE (BITS (16, 19), i);
2230 a = EXTEND8 (a);
2231
2232 b = wRBYTE (BITS (0, 3), i);
2233 b = EXTEND8 (b);
2234
2235 if (a > b)
2236 s = a;
2237 else
2238 s = b;
2239
2240 r |= (s & 0xff) << (i * 8);
2241 }
2242 else /* Unsigned. */
2243 {
2244 unsigned int a, b;
2245
2246 a = wRBYTE (BITS (16, 19), i);
2247 b = wRBYTE (BITS (0, 3), i);
2248
2249 if (a > b)
2250 s = a;
2251 else
2252 s = b;
2253
2254 r |= (s & 0xff) << (i * 8);
2255 }
2256 break;
2257
2258 case Hqual:
2259 for (i = 0; i < 4; i++)
2260 if (BIT (21)) /* Signed. */
2261 {
2262 int a, b;
2263
2264 a = wRHALF (BITS (16, 19), i);
2265 a = EXTEND16 (a);
2266
2267 b = wRHALF (BITS (0, 3), i);
2268 b = EXTEND16 (b);
2269
2270 if (a > b)
2271 s = a;
2272 else
2273 s = b;
2274
2275 r |= (s & 0xffff) << (i * 16);
2276 }
2277 else /* Unsigned. */
2278 {
2279 unsigned int a, b;
2280
2281 a = wRHALF (BITS (16, 19), i);
2282 b = wRHALF (BITS (0, 3), i);
2283
2284 if (a > b)
2285 s = a;
2286 else
2287 s = b;
2288
2289 r |= (s & 0xffff) << (i * 16);
2290 }
2291 break;
2292
2293 case Wqual:
2294 for (i = 0; i < 2; i++)
2295 if (BIT (21)) /* Signed. */
2296 {
2297 int a, b;
2298
2299 a = wRWORD (BITS (16, 19), i);
2300 b = wRWORD (BITS (0, 3), i);
2301
2302 if (a > b)
2303 s = a;
2304 else
2305 s = b;
2306
2307 r |= (s & 0xffffffff) << (i * 32);
2308 }
2309 else
2310 {
2311 unsigned int a, b;
2312
2313 a = wRWORD (BITS (16, 19), i);
2314 b = wRWORD (BITS (0, 3), i);
2315
2316 if (a > b)
2317 s = a;
2318 else
2319 s = b;
2320
2321 r |= (s & 0xffffffff) << (i * 32);
2322 }
2323 break;
2324
2325 default:
2326 ARMul_UndefInstr (state, instr);
2327 return ARMul_DONE;
2328 }
2329
2330 wR [BITS (12, 15)] = r;
2331 wC [wCon] |= WCON_MUP;
2332
2333 return ARMul_DONE;
2334 }
2335
2336 static int
2337 WMIN (ARMul_State * state, ARMword instr)
2338 {
2339 ARMdword r = 0;
2340 ARMdword s;
2341 int i;
2342
2343 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
2344 return ARMul_CANT;
2345
2346 #ifdef DEBUG
2347 fprintf (stderr, "wmin\n");
2348 #endif
2349
2350 switch (BITS (22, 23))
2351 {
2352 case Bqual:
2353 for (i = 0; i < 8; i++)
2354 if (BIT (21)) /* Signed. */
2355 {
2356 int a, b;
2357
2358 a = wRBYTE (BITS (16, 19), i);
2359 a = EXTEND8 (a);
2360
2361 b = wRBYTE (BITS (0, 3), i);
2362 b = EXTEND8 (b);
2363
2364 if (a < b)
2365 s = a;
2366 else
2367 s = b;
2368
2369 r |= (s & 0xff) << (i * 8);
2370 }
2371 else /* Unsigned. */
2372 {
2373 unsigned int a, b;
2374
2375 a = wRBYTE (BITS (16, 19), i);
2376 b = wRBYTE (BITS (0, 3), i);
2377
2378 if (a < b)
2379 s = a;
2380 else
2381 s = b;
2382
2383 r |= (s & 0xff) << (i * 8);
2384 }
2385 break;
2386
2387 case Hqual:
2388 for (i = 0; i < 4; i++)
2389 if (BIT (21)) /* Signed. */
2390 {
2391 int a, b;
2392
2393 a = wRHALF (BITS (16, 19), i);
2394 a = EXTEND16 (a);
2395
2396 b = wRHALF (BITS (0, 3), i);
2397 b = EXTEND16 (b);
2398
2399 if (a < b)
2400 s = a;
2401 else
2402 s = b;
2403
2404 r |= (s & 0xffff) << (i * 16);
2405 }
2406 else
2407 {
2408 /* Unsigned. */
2409 unsigned int a, b;
2410
2411 a = wRHALF (BITS (16, 19), i);
2412 b = wRHALF (BITS ( 0, 3), i);
2413
2414 if (a < b)
2415 s = a;
2416 else
2417 s = b;
2418
2419 r |= (s & 0xffff) << (i * 16);
2420 }
2421 break;
2422
2423 case Wqual:
2424 for (i = 0; i < 2; i++)
2425 if (BIT (21)) /* Signed. */
2426 {
2427 int a, b;
2428
2429 a = wRWORD (BITS (16, 19), i);
2430 b = wRWORD (BITS ( 0, 3), i);
2431
2432 if (a < b)
2433 s = a;
2434 else
2435 s = b;
2436
2437 r |= (s & 0xffffffff) << (i * 32);
2438 }
2439 else
2440 {
2441 unsigned int a, b;
2442
2443 a = wRWORD (BITS (16, 19), i);
2444 b = wRWORD (BITS (0, 3), i);
2445
2446 if (a < b)
2447 s = a;
2448 else
2449 s = b;
2450
2451 r |= (s & 0xffffffff) << (i * 32);
2452 }
2453 break;
2454
2455 default:
2456 ARMul_UndefInstr (state, instr);
2457 return ARMul_DONE;
2458 }
2459
2460 wR [BITS (12, 15)] = r;
2461 wC [wCon] |= WCON_MUP;
2462
2463 return ARMul_DONE;
2464 }
2465
2466 static int
2467 WMUL (ARMword instr)
2468 {
2469 ARMdword r = 0;
2470 ARMdword s;
2471 int i;
2472
2473 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
2474 return ARMul_CANT;
2475
2476 #ifdef DEBUG
2477 fprintf (stderr, "wmul\n");
2478 #endif
2479
2480 for (i = 0; i < 4; i++)
2481 if (BIT (21)) /* Signed. */
2482 {
2483 long a, b;
2484
2485 a = wRHALF (BITS (16, 19), i);
2486 a = EXTEND16 (a);
2487
2488 b = wRHALF (BITS (0, 3), i);
2489 b = EXTEND16 (b);
2490
2491 s = a * b;
2492
2493 if (BIT (20))
2494 r |= ((s >> 16) & 0xffff) << (i * 16);
2495 else
2496 r |= (s & 0xffff) << (i * 16);
2497 }
2498 else /* Unsigned. */
2499 {
2500 unsigned long a, b;
2501
2502 a = wRHALF (BITS (16, 19), i);
2503 b = wRHALF (BITS (0, 3), i);
2504
2505 s = a * b;
2506
2507 if (BIT (20))
2508 r |= ((s >> 16) & 0xffff) << (i * 16);
2509 else
2510 r |= (s & 0xffff) << (i * 16);
2511 }
2512
2513 wR [BITS (12, 15)] = r;
2514 wC [wCon] |= WCON_MUP;
2515
2516 return ARMul_DONE;
2517 }
2518
2519 static int
2520 WOR (ARMword instr)
2521 {
2522 ARMword psr = 0;
2523 ARMdword result;
2524
2525 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
2526 return ARMul_CANT;
2527
2528 #ifdef DEBUG
2529 fprintf (stderr, "wor\n");
2530 #endif
2531
2532 result = wR [BITS (16, 19)] | wR [BITS (0, 3)];
2533 wR [BITS (12, 15)] = result;
2534
2535 SIMD64_SET (psr, (result == 0), SIMD_ZBIT);
2536 SIMD64_SET (psr, (result & (1ULL << 63)), SIMD_NBIT);
2537
2538 wC [wCASF] = psr;
2539 wC [wCon] |= (WCON_CUP | WCON_MUP);
2540
2541 return ARMul_DONE;
2542 }
2543
2544 static int
2545 WPACK (ARMul_State * state, ARMword instr)
2546 {
2547 ARMdword r = 0;
2548 ARMword psr = 0;
2549 ARMdword x;
2550 ARMdword s;
2551 int i;
2552 int satrv[8];
2553
2554 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
2555 return ARMul_CANT;
2556
2557 #ifdef DEBUG
2558 fprintf (stderr, "wpack\n");
2559 #endif
2560
2561 switch (BITS (22, 23))
2562 {
2563 case Hqual:
2564 for (i = 0; i < 8; i++)
2565 {
2566 x = wRHALF (i < 4 ? BITS (16, 19) : BITS (0, 3), i & 3);
2567
2568 switch (BITS (20, 21))
2569 {
2570 case UnsignedSaturation:
2571 s = IwmmxtSaturateU8 (x, satrv + BITIDX8 (i));
2572 break;
2573
2574 case SignedSaturation:
2575 s = IwmmxtSaturateS8 (x, satrv + BITIDX8 (i));
2576 break;
2577
2578 default:
2579 ARMul_UndefInstr (state, instr);
2580 return ARMul_DONE;
2581 }
2582
2583 r |= (s & 0xff) << (i * 8);
2584 SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i);
2585 SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i);
2586 }
2587 break;
2588
2589 case Wqual:
2590 satrv[0] = satrv[2] = satrv[4] = satrv[6] = 0;
2591
2592 for (i = 0; i < 4; i++)
2593 {
2594 x = wRWORD (i < 2 ? BITS (16, 19) : BITS (0, 3), i & 1);
2595
2596 switch (BITS (20, 21))
2597 {
2598 case UnsignedSaturation:
2599 s = IwmmxtSaturateU16 (x, satrv + BITIDX16 (i));
2600 break;
2601
2602 case SignedSaturation:
2603 s = IwmmxtSaturateS16 (x, satrv + BITIDX16 (i));
2604 break;
2605
2606 default:
2607 ARMul_UndefInstr (state, instr);
2608 return ARMul_DONE;
2609 }
2610
2611 r |= (s & 0xffff) << (i * 16);
2612 SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
2613 SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
2614 }
2615 break;
2616
2617 case Dqual:
2618 satrv[0] = satrv[1] = satrv[2] = satrv[4] = satrv[5] = satrv[6] = 0;
2619
2620 for (i = 0; i < 2; i++)
2621 {
2622 x = wR [i ? BITS (0, 3) : BITS (16, 19)];
2623
2624 switch (BITS (20, 21))
2625 {
2626 case UnsignedSaturation:
2627 s = IwmmxtSaturateU32 (x, satrv + BITIDX32 (i));
2628 break;
2629
2630 case SignedSaturation:
2631 s = IwmmxtSaturateS32 (x, satrv + BITIDX32 (i));
2632 break;
2633
2634 default:
2635 ARMul_UndefInstr (state, instr);
2636 return ARMul_DONE;
2637 }
2638
2639 r |= (s & 0xffffffff) << (i * 32);
2640 SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
2641 SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
2642 }
2643 break;
2644
2645 default:
2646 ARMul_UndefInstr (state, instr);
2647 return ARMul_DONE;
2648 }
2649
2650 wC [wCASF] = psr;
2651 wR [BITS (12, 15)] = r;
2652 SET_wCSSFvec (satrv);
2653 wC [wCon] |= (WCON_CUP | WCON_MUP);
2654
2655 return ARMul_DONE;
2656 }
2657
2658 static int
2659 WROR (ARMul_State * state, ARMword instr)
2660 {
2661 ARMdword r = 0;
2662 ARMdword s;
2663 ARMword psr = 0;
2664 int i;
2665 int shift;
2666
2667 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
2668 return ARMul_CANT;
2669
2670 #ifdef DEBUG
2671 fprintf (stderr, "wror\n");
2672 #endif
2673
2674 DECODE_G_BIT (state, instr, shift);
2675
2676 switch (BITS (22, 23))
2677 {
2678 case Hqual:
2679 shift &= 0xf;
2680 for (i = 0; i < 4; i++)
2681 {
2682 s = ((wRHALF (BITS (16, 19), i) & 0xffff) << (16 - shift))
2683 | ((wRHALF (BITS (16, 19), i) & 0xffff) >> shift);
2684 r |= (s & 0xffff) << (i * 16);
2685 SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
2686 SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
2687 }
2688 break;
2689
2690 case Wqual:
2691 shift &= 0x1f;
2692 for (i = 0; i < 2; i++)
2693 {
2694 s = ((wRWORD (BITS (16, 19), i) & 0xffffffff) << (32 - shift))
2695 | ((wRWORD (BITS (16, 19), i) & 0xffffffff) >> shift);
2696 r |= (s & 0xffffffff) << (i * 32);
2697 SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
2698 SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
2699 }
2700 break;
2701
2702 case Dqual:
2703 shift &= 0x3f;
2704 r = (wR [BITS (16, 19)] >> shift)
2705 | (wR [BITS (16, 19)] << (64 - shift));
2706
2707 SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT);
2708 SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT);
2709 break;
2710
2711 default:
2712 ARMul_UndefInstr (state, instr);
2713 return ARMul_DONE;
2714 }
2715
2716 wC [wCASF] = psr;
2717 wR [BITS (12, 15)] = r;
2718 wC [wCon] |= (WCON_CUP | WCON_MUP);
2719
2720 return ARMul_DONE;
2721 }
2722
2723 static int
2724 WSAD (ARMword instr)
2725 {
2726 ARMdword r;
2727 int s;
2728 int i;
2729
2730 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
2731 return ARMul_CANT;
2732
2733 #ifdef DEBUG
2734 fprintf (stderr, "wsad\n");
2735 #endif
2736
2737 /* Z bit. */
2738 r = BIT (20) ? 0 : (wR [BITS (12, 15)] & 0xffffffff);
2739
2740 if (BIT (22))
2741 /* Half. */
2742 for (i = 0; i < 4; i++)
2743 {
2744 s = (wRHALF (BITS (16, 19), i) - wRHALF (BITS (0, 3), i));
2745 r += abs (s);
2746 }
2747 else
2748 /* Byte. */
2749 for (i = 0; i < 8; i++)
2750 {
2751 s = (wRBYTE (BITS (16, 19), i) - wRBYTE (BITS (0, 3), i));
2752 r += abs (s);
2753 }
2754
2755 wR [BITS (12, 15)] = r;
2756 wC [wCon] |= WCON_MUP;
2757
2758 return ARMul_DONE;
2759 }
2760
2761 static int
2762 WSHUFH (ARMword instr)
2763 {
2764 ARMdword r = 0;
2765 ARMword psr = 0;
2766 ARMdword s;
2767 int i;
2768 int imm8;
2769
2770 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
2771 return ARMul_CANT;
2772
2773 #ifdef DEBUG
2774 fprintf (stderr, "wshufh\n");
2775 #endif
2776
2777 imm8 = (BITS (20, 23) << 4) | BITS (0, 3);
2778
2779 for (i = 0; i < 4; i++)
2780 {
2781 s = wRHALF (BITS (16, 19), ((imm8 >> (i * 2) & 3)) & 0xff);
2782 r |= (s & 0xffff) << (i * 16);
2783 SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
2784 SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
2785 }
2786
2787 wC [wCASF] = psr;
2788 wR [BITS (12, 15)] = r;
2789 wC [wCon] |= (WCON_CUP | WCON_MUP);
2790
2791 return ARMul_DONE;
2792 }
2793
2794 static int
2795 WSLL (ARMul_State * state, ARMword instr)
2796 {
2797 ARMdword r = 0;
2798 ARMdword s;
2799 ARMword psr = 0;
2800 int i;
2801 unsigned shift;
2802
2803 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
2804 return ARMul_CANT;
2805
2806 #ifdef DEBUG
2807 fprintf (stderr, "wsll\n");
2808 #endif
2809
2810 DECODE_G_BIT (state, instr, shift);
2811
2812 switch (BITS (22, 23))
2813 {
2814 case Hqual:
2815 for (i = 0; i < 4; i++)
2816 {
2817 if (shift > 15)
2818 s = 0;
2819 else
2820 s = ((wRHALF (BITS (16, 19), i) & 0xffff) << shift);
2821 r |= (s & 0xffff) << (i * 16);
2822 SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
2823 SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
2824 }
2825 break;
2826
2827 case Wqual:
2828 for (i = 0; i < 2; i++)
2829 {
2830 if (shift > 31)
2831 s = 0;
2832 else
2833 s = ((wRWORD (BITS (16, 19), i) & 0xffffffff) << shift);
2834 r |= (s & 0xffffffff) << (i * 32);
2835 SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
2836 SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
2837 }
2838 break;
2839
2840 case Dqual:
2841 if (shift > 63)
2842 r = 0;
2843 else
2844 r = ((wR[BITS (16, 19)] & 0xffffffffffffffffULL) << shift);
2845
2846 SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT);
2847 SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT);
2848 break;
2849
2850 default:
2851 ARMul_UndefInstr (state, instr);
2852 return ARMul_DONE;
2853 }
2854
2855 wC [wCASF] = psr;
2856 wR [BITS (12, 15)] = r;
2857 wC [wCon] |= (WCON_CUP | WCON_MUP);
2858
2859 return ARMul_DONE;
2860 }
2861
2862 static int
2863 WSRA (ARMul_State * state, ARMword instr)
2864 {
2865 ARMdword r = 0;
2866 ARMdword s;
2867 ARMword psr = 0;
2868 int i;
2869 unsigned shift;
2870 signed long t;
2871
2872 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
2873 return ARMul_CANT;
2874
2875 #ifdef DEBUG
2876 fprintf (stderr, "wsra\n");
2877 #endif
2878
2879 DECODE_G_BIT (state, instr, shift);
2880
2881 switch (BITS (22, 23))
2882 {
2883 case Hqual:
2884 for (i = 0; i < 4; i++)
2885 {
2886 if (shift > 15)
2887 t = (wRHALF (BITS (16, 19), i) & 0x8000) ? 0xffff : 0;
2888 else
2889 {
2890 t = wRHALF (BITS (16, 19), i);
2891 t = EXTEND16 (t);
2892 t >>= shift;
2893 }
2894
2895 s = t;
2896 r |= (s & 0xffff) << (i * 16);
2897 SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
2898 SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
2899 }
2900 break;
2901
2902 case Wqual:
2903 for (i = 0; i < 2; i++)
2904 {
2905 if (shift > 31)
2906 t = (wRWORD (BITS (16, 19), i) & 0x80000000) ? 0xffffffff : 0;
2907 else
2908 {
2909 t = EXTEND32 (wRWORD (BITS (16, 19), i));
2910 t >>= shift;
2911 }
2912 s = t;
2913 r |= (s & 0xffffffff) << (i * 32);
2914 SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
2915 SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
2916 }
2917 break;
2918
2919 case Dqual:
2920 if (shift > 63)
2921 r = (wR [BITS (16, 19)] & 0x8000000000000000ULL) ? 0xffffffffffffffffULL : 0;
2922 else
2923 r = ((signed long long) (wR[BITS (16, 19)] & 0xffffffffffffffffULL) >> shift);
2924 SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT);
2925 SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT);
2926 break;
2927
2928 default:
2929 ARMul_UndefInstr (state, instr);
2930 return ARMul_DONE;
2931 }
2932
2933 wC [wCASF] = psr;
2934 wR [BITS (12, 15)] = r;
2935 wC [wCon] |= (WCON_CUP | WCON_MUP);
2936
2937 return ARMul_DONE;
2938 }
2939
2940 static int
2941 WSRL (ARMul_State * state, ARMword instr)
2942 {
2943 ARMdword r = 0;
2944 ARMdword s;
2945 ARMword psr = 0;
2946 int i;
2947 unsigned int shift;
2948
2949 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
2950 return ARMul_CANT;
2951
2952 #ifdef DEBUG
2953 fprintf (stderr, "wsrl\n");
2954 #endif
2955
2956 DECODE_G_BIT (state, instr, shift);
2957
2958 switch (BITS (22, 23))
2959 {
2960 case Hqual:
2961 for (i = 0; i < 4; i++)
2962 {
2963 if (shift > 15)
2964 s = 0;
2965 else
2966 s = ((unsigned) (wRHALF (BITS (16, 19), i) & 0xffff) >> shift);
2967
2968 r |= (s & 0xffff) << (i * 16);
2969 SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
2970 SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
2971 }
2972 break;
2973
2974 case Wqual:
2975 for (i = 0; i < 2; i++)
2976 {
2977 if (shift > 31)
2978 s = 0;
2979 else
2980 s = ((unsigned long) (wRWORD (BITS (16, 19), i) & 0xffffffff) >> shift);
2981
2982 r |= (s & 0xffffffff) << (i * 32);
2983 SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
2984 SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
2985 }
2986 break;
2987
2988 case Dqual:
2989 if (shift > 63)
2990 r = 0;
2991 else
2992 r = (wR [BITS (16, 19)] & 0xffffffffffffffffULL) >> shift;
2993
2994 SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT);
2995 SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT);
2996 break;
2997
2998 default:
2999 ARMul_UndefInstr (state, instr);
3000 return ARMul_DONE;
3001 }
3002
3003 wC [wCASF] = psr;
3004 wR [BITS (12, 15)] = r;
3005 wC [wCon] |= (WCON_CUP | WCON_MUP);
3006
3007 return ARMul_DONE;
3008 }
3009
3010 static int
3011 WSTR (ARMul_State * state, ARMword instr)
3012 {
3013 ARMword address;
3014 int failed;
3015
3016
3017 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
3018 return ARMul_CANT;
3019
3020 #ifdef DEBUG
3021 fprintf (stderr, "wstr\n");
3022 #endif
3023
3024 address = Compute_Iwmmxt_Address (state, instr, & failed);
3025 if (failed)
3026 return ARMul_CANT;
3027
3028 if (BITS (28, 31) == 0xf)
3029 {
3030 /* WSTRW wCx */
3031 Iwmmxt_Store_Word (state, address, wC [BITS (12, 15)]);
3032 }
3033 else if (BIT (8) == 0)
3034 {
3035 if (BIT (22) == 0)
3036 /* WSTRB */
3037 Iwmmxt_Store_Byte (state, address, wR [BITS (12, 15)]);
3038 else
3039 /* WSTRH */
3040 Iwmmxt_Store_Half_Word (state, address, wR [BITS (12, 15)]);
3041 }
3042 else
3043 {
3044 if (BIT (22) == 0)
3045 /* WSTRW wRd */
3046 Iwmmxt_Store_Word (state, address, wR [BITS (12, 15)]);
3047 else
3048 /* WSTRD */
3049 Iwmmxt_Store_Double_Word (state, address, wR [BITS (12, 15)]);
3050 }
3051
3052 return ARMul_DONE;
3053 }
3054
3055 static int
3056 WSUB (ARMul_State * state, ARMword instr)
3057 {
3058 ARMdword r = 0;
3059 ARMword psr = 0;
3060 ARMdword x;
3061 ARMdword s;
3062 int i;
3063 int carry;
3064 int overflow;
3065 int satrv[8];
3066
3067 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
3068 return ARMul_CANT;
3069
3070 #ifdef DEBUG
3071 fprintf (stderr, "wsub\n");
3072 #endif
3073
3074 /* Subtract two numbers using the specified function,
3075 leaving setting the carry bit as required. */
3076 #define SUBx(x, y, m, f) \
3077 (*f) (wRBITS (BITS (16, 19), (x), (y)) & (m), \
3078 wRBITS (BITS ( 0, 3), (x), (y)) & (m), & carry, & overflow)
3079
3080 switch (BITS (22, 23))
3081 {
3082 case Bqual:
3083 for (i = 0; i < 8; i++)
3084 {
3085 switch (BITS (20, 21))
3086 {
3087 case NoSaturation:
3088 s = SUBx ((i * 8), (i * 8) + 7, 0xff, SubS8);
3089 satrv [BITIDX8 (i)] = 0;
3090 r |= (s & 0xff) << (i * 8);
3091 SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i);
3092 SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i);
3093 SIMD8_SET (psr, carry, SIMD_CBIT, i);
3094 SIMD8_SET (psr, overflow, SIMD_VBIT, i);
3095 break;
3096
3097 case UnsignedSaturation:
3098 s = SUBx ((i * 8), (i * 8) + 7, 0xff, SubU8);
3099 x = IwmmxtSaturateU8 (s, satrv + BITIDX8 (i));
3100 r |= (x & 0xff) << (i * 8);
3101 SIMD8_SET (psr, NBIT8 (x), SIMD_NBIT, i);
3102 SIMD8_SET (psr, ZBIT8 (x), SIMD_ZBIT, i);
3103 if (! satrv [BITIDX8 (i)])
3104 {
3105 SIMD8_SET (psr, carry, SIMD_CBIT, i);
3106 SIMD8_SET (psr, overflow, SIMD_VBIT, i);
3107 }
3108 break;
3109
3110 case SignedSaturation:
3111 s = SUBx ((i * 8), (i * 8) + 7, 0xff, SubS8);
3112 x = IwmmxtSaturateS8 (s, satrv + BITIDX8 (i));
3113 r |= (x & 0xff) << (i * 8);
3114 SIMD8_SET (psr, NBIT8 (x), SIMD_NBIT, i);
3115 SIMD8_SET (psr, ZBIT8 (x), SIMD_ZBIT, i);
3116 if (! satrv [BITIDX8 (i)])
3117 {
3118 SIMD8_SET (psr, carry, SIMD_CBIT, i);
3119 SIMD8_SET (psr, overflow, SIMD_VBIT, i);
3120 }
3121 break;
3122
3123 default:
3124 ARMul_UndefInstr (state, instr);
3125 return ARMul_DONE;
3126 }
3127 }
3128 break;
3129
3130 case Hqual:
3131 satrv[0] = satrv[2] = satrv[4] = satrv[6] = 0;
3132
3133 for (i = 0; i < 4; i++)
3134 {
3135 switch (BITS (20, 21))
3136 {
3137 case NoSaturation:
3138 s = SUBx ((i * 16), (i * 16) + 15, 0xffff, SubU16);
3139 satrv [BITIDX16 (i)] = 0;
3140 r |= (s & 0xffff) << (i * 16);
3141 SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
3142 SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
3143 SIMD16_SET (psr, carry, SIMD_CBIT, i);
3144 SIMD16_SET (psr, overflow, SIMD_VBIT, i);
3145 break;
3146
3147 case UnsignedSaturation:
3148 s = SUBx ((i * 16), (i * 16) + 15, 0xffff, SubU16);
3149 x = IwmmxtSaturateU16 (s, satrv + BITIDX16 (i));
3150 r |= (x & 0xffff) << (i * 16);
3151 SIMD16_SET (psr, NBIT16 (x & 0xffff), SIMD_NBIT, i);
3152 SIMD16_SET (psr, ZBIT16 (x), SIMD_ZBIT, i);
3153 if (! satrv [BITIDX16 (i)])
3154 {
3155 SIMD16_SET (psr, carry, SIMD_CBIT, i);
3156 SIMD16_SET (psr, overflow, SIMD_VBIT, i);
3157 }
3158 break;
3159
3160 case SignedSaturation:
3161 s = SUBx ((i * 16), (i * 16) + 15, 0xffff, SubS16);
3162 x = IwmmxtSaturateS16 (s, satrv + BITIDX16 (i));
3163 r |= (x & 0xffff) << (i * 16);
3164 SIMD16_SET (psr, NBIT16 (x), SIMD_NBIT, i);
3165 SIMD16_SET (psr, ZBIT16 (x), SIMD_ZBIT, i);
3166 if (! satrv [BITIDX16 (i)])
3167 {
3168 SIMD16_SET (psr, carry, SIMD_CBIT, i);
3169 SIMD16_SET (psr, overflow, SIMD_VBIT, i);
3170 }
3171 break;
3172
3173 default:
3174 ARMul_UndefInstr (state, instr);
3175 return ARMul_DONE;
3176 }
3177 }
3178 break;
3179
3180 case Wqual:
3181 satrv[0] = satrv[1] = satrv[2] = satrv[4] = satrv[5] = satrv[6] = 0;
3182
3183 for (i = 0; i < 2; i++)
3184 {
3185 switch (BITS (20, 21))
3186 {
3187 case NoSaturation:
3188 s = SUBx ((i * 32), (i * 32) + 31, 0xffffffff, SubU32);
3189 satrv[BITIDX32 (i)] = 0;
3190 r |= (s & 0xffffffff) << (i * 32);
3191 SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
3192 SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
3193 SIMD32_SET (psr, carry, SIMD_CBIT, i);
3194 SIMD32_SET (psr, overflow, SIMD_VBIT, i);
3195 break;
3196
3197 case UnsignedSaturation:
3198 s = SUBx ((i * 32), (i * 32) + 31, 0xffffffff, SubU32);
3199 x = IwmmxtSaturateU32 (s, satrv + BITIDX32 (i));
3200 r |= (x & 0xffffffff) << (i * 32);
3201 SIMD32_SET (psr, NBIT32 (x), SIMD_NBIT, i);
3202 SIMD32_SET (psr, ZBIT32 (x), SIMD_ZBIT, i);
3203 if (! satrv [BITIDX32 (i)])
3204 {
3205 SIMD32_SET (psr, carry, SIMD_CBIT, i);
3206 SIMD32_SET (psr, overflow, SIMD_VBIT, i);
3207 }
3208 break;
3209
3210 case SignedSaturation:
3211 s = SUBx ((i * 32), (i * 32) + 31, 0xffffffff, SubS32);
3212 x = IwmmxtSaturateS32 (s, satrv + BITIDX32 (i));
3213 r |= (x & 0xffffffff) << (i * 32);
3214 SIMD32_SET (psr, NBIT32 (x), SIMD_NBIT, i);
3215 SIMD32_SET (psr, ZBIT32 (x), SIMD_ZBIT, i);
3216 if (! satrv [BITIDX32 (i)])
3217 {
3218 SIMD32_SET (psr, carry, SIMD_CBIT, i);
3219 SIMD32_SET (psr, overflow, SIMD_VBIT, i);
3220 }
3221 break;
3222
3223 default:
3224 ARMul_UndefInstr (state, instr);
3225 return ARMul_DONE;
3226 }
3227 }
3228 break;
3229
3230 default:
3231 ARMul_UndefInstr (state, instr);
3232 return ARMul_DONE;
3233 }
3234
3235 wR [BITS (12, 15)] = r;
3236 wC [wCASF] = psr;
3237 SET_wCSSFvec (satrv);
3238 wC [wCon] |= (WCON_CUP | WCON_MUP);
3239
3240 #undef SUBx
3241
3242 return ARMul_DONE;
3243 }
3244
3245 static int
3246 WUNPCKEH (ARMul_State * state, ARMword instr)
3247 {
3248 ARMdword r = 0;
3249 ARMword psr = 0;
3250 ARMdword s;
3251 int i;
3252
3253 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
3254 return ARMul_CANT;
3255
3256 #ifdef DEBUG
3257 fprintf (stderr, "wunpckeh\n");
3258 #endif
3259
3260 switch (BITS (22, 23))
3261 {
3262 case Bqual:
3263 for (i = 0; i < 4; i++)
3264 {
3265 s = wRBYTE (BITS (16, 19), i + 4);
3266
3267 if (BIT (21) && NBIT8 (s))
3268 s |= 0xff00;
3269
3270 r |= (s & 0xffff) << (i * 16);
3271 SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
3272 SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
3273 }
3274 break;
3275
3276 case Hqual:
3277 for (i = 0; i < 2; i++)
3278 {
3279 s = wRHALF (BITS (16, 19), i + 2);
3280
3281 if (BIT (21) && NBIT16 (s))
3282 s |= 0xffff0000;
3283
3284 r |= (s & 0xffffffff) << (i * 32);
3285 SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
3286 SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
3287 }
3288 break;
3289
3290 case Wqual:
3291 r = wRWORD (BITS (16, 19), 1);
3292
3293 if (BIT (21) && NBIT32 (r))
3294 r |= 0xffffffff00000000ULL;
3295
3296 SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT);
3297 SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT);
3298 break;
3299
3300 default:
3301 ARMul_UndefInstr (state, instr);
3302 return ARMul_DONE;
3303 }
3304
3305 wC [wCASF] = psr;
3306 wR [BITS (12, 15)] = r;
3307 wC [wCon] |= (WCON_CUP | WCON_MUP);
3308
3309 return ARMul_DONE;
3310 }
3311
3312 static int
3313 WUNPCKEL (ARMul_State * state, ARMword instr)
3314 {
3315 ARMdword r = 0;
3316 ARMword psr = 0;
3317 ARMdword s;
3318 int i;
3319
3320 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
3321 return ARMul_CANT;
3322
3323 #ifdef DEBUG
3324 fprintf (stderr, "wunpckel\n");
3325 #endif
3326
3327 switch (BITS (22, 23))
3328 {
3329 case Bqual:
3330 for (i = 0; i < 4; i++)
3331 {
3332 s = wRBYTE (BITS (16, 19), i);
3333
3334 if (BIT (21) && NBIT8 (s))
3335 s |= 0xff00;
3336
3337 r |= (s & 0xffff) << (i * 16);
3338 SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i);
3339 SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i);
3340 }
3341 break;
3342
3343 case Hqual:
3344 for (i = 0; i < 2; i++)
3345 {
3346 s = wRHALF (BITS (16, 19), i);
3347
3348 if (BIT (21) && NBIT16 (s))
3349 s |= 0xffff0000;
3350
3351 r |= (s & 0xffffffff) << (i * 32);
3352 SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i);
3353 SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i);
3354 }
3355 break;
3356
3357 case Wqual:
3358 r = wRWORD (BITS (16, 19), 0);
3359
3360 if (BIT (21) && NBIT32 (r))
3361 r |= 0xffffffff00000000ULL;
3362
3363 SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT);
3364 SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT);
3365 break;
3366
3367 default:
3368 ARMul_UndefInstr (state, instr);
3369 return ARMul_DONE;
3370 }
3371
3372 wC [wCASF] = psr;
3373 wR [BITS (12, 15)] = r;
3374 wC [wCon] |= (WCON_CUP | WCON_MUP);
3375
3376 return ARMul_DONE;
3377 }
3378
3379 static int
3380 WUNPCKIH (ARMul_State * state, ARMword instr)
3381 {
3382 ARMword a, b;
3383 ARMdword r = 0;
3384 ARMword psr = 0;
3385 ARMdword s;
3386 int i;
3387
3388 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
3389 return ARMul_CANT;
3390
3391 #ifdef DEBUG
3392 fprintf (stderr, "wunpckih\n");
3393 #endif
3394
3395 switch (BITS (22, 23))
3396 {
3397 case Bqual:
3398 for (i = 0; i < 4; i++)
3399 {
3400 a = wRBYTE (BITS (16, 19), i + 4);
3401 b = wRBYTE (BITS ( 0, 3), i + 4);
3402 s = a | (b << 8);
3403 r |= (s & 0xffff) << (i * 16);
3404 SIMD8_SET (psr, NBIT8 (a), SIMD_NBIT, i * 2);
3405 SIMD8_SET (psr, ZBIT8 (a), SIMD_ZBIT, i * 2);
3406 SIMD8_SET (psr, NBIT8 (b), SIMD_NBIT, (i * 2) + 1);
3407 SIMD8_SET (psr, ZBIT8 (b), SIMD_ZBIT, (i * 2) + 1);
3408 }
3409 break;
3410
3411 case Hqual:
3412 for (i = 0; i < 2; i++)
3413 {
3414 a = wRHALF (BITS (16, 19), i + 2);
3415 b = wRHALF (BITS ( 0, 3), i + 2);
3416 s = a | (b << 16);
3417 r |= (s & 0xffffffff) << (i * 32);
3418 SIMD16_SET (psr, NBIT16 (a), SIMD_NBIT, (i * 2));
3419 SIMD16_SET (psr, ZBIT16 (a), SIMD_ZBIT, (i * 2));
3420 SIMD16_SET (psr, NBIT16 (b), SIMD_NBIT, (i * 2) + 1);
3421 SIMD16_SET (psr, ZBIT16 (b), SIMD_ZBIT, (i * 2) + 1);
3422 }
3423 break;
3424
3425 case Wqual:
3426 a = wRWORD (BITS (16, 19), 1);
3427 s = wRWORD (BITS ( 0, 3), 1);
3428 r = a | (s << 32);
3429
3430 SIMD32_SET (psr, NBIT32 (a), SIMD_NBIT, 0);
3431 SIMD32_SET (psr, ZBIT32 (a), SIMD_ZBIT, 0);
3432 SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, 1);
3433 SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, 1);
3434 break;
3435
3436 default:
3437 ARMul_UndefInstr (state, instr);
3438 return ARMul_DONE;
3439 }
3440
3441 wC [wCASF] = psr;
3442 wR [BITS (12, 15)] = r;
3443 wC [wCon] |= (WCON_CUP | WCON_MUP);
3444
3445 return ARMul_DONE;
3446 }
3447
3448 static int
3449 WUNPCKIL (ARMul_State * state, ARMword instr)
3450 {
3451 ARMword a, b;
3452 ARMdword r = 0;
3453 ARMword psr = 0;
3454 ARMdword s;
3455 int i;
3456
3457 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
3458 return ARMul_CANT;
3459
3460 #ifdef DEBUG
3461 fprintf (stderr, "wunpckil\n");
3462 #endif
3463
3464 switch (BITS (22, 23))
3465 {
3466 case Bqual:
3467 for (i = 0; i < 4; i++)
3468 {
3469 a = wRBYTE (BITS (16, 19), i);
3470 b = wRBYTE (BITS ( 0, 3), i);
3471 s = a | (b << 8);
3472 r |= (s & 0xffff) << (i * 16);
3473 SIMD8_SET (psr, NBIT8 (a), SIMD_NBIT, i * 2);
3474 SIMD8_SET (psr, ZBIT8 (a), SIMD_ZBIT, i * 2);
3475 SIMD8_SET (psr, NBIT8 (b), SIMD_NBIT, (i * 2) + 1);
3476 SIMD8_SET (psr, ZBIT8 (b), SIMD_ZBIT, (i * 2) + 1);
3477 }
3478 break;
3479
3480 case Hqual:
3481 for (i = 0; i < 2; i++)
3482 {
3483 a = wRHALF (BITS (16, 19), i);
3484 b = wRHALF (BITS ( 0, 3), i);
3485 s = a | (b << 16);
3486 r |= (s & 0xffffffff) << (i * 32);
3487 SIMD16_SET (psr, NBIT16 (a), SIMD_NBIT, (i * 2));
3488 SIMD16_SET (psr, ZBIT16 (a), SIMD_ZBIT, (i * 2));
3489 SIMD16_SET (psr, NBIT16 (b), SIMD_NBIT, (i * 2) + 1);
3490 SIMD16_SET (psr, ZBIT16 (b), SIMD_ZBIT, (i * 2) + 1);
3491 }
3492 break;
3493
3494 case Wqual:
3495 a = wRWORD (BITS (16, 19), 0);
3496 s = wRWORD (BITS ( 0, 3), 0);
3497 r = a | (s << 32);
3498
3499 SIMD32_SET (psr, NBIT32 (a), SIMD_NBIT, 0);
3500 SIMD32_SET (psr, ZBIT32 (a), SIMD_ZBIT, 0);
3501 SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, 1);
3502 SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, 1);
3503 break;
3504
3505 default:
3506 ARMul_UndefInstr (state, instr);
3507 return ARMul_DONE;
3508 }
3509
3510 wC [wCASF] = psr;
3511 wR [BITS (12, 15)] = r;
3512 wC [wCon] |= (WCON_CUP | WCON_MUP);
3513
3514 return ARMul_DONE;
3515 }
3516
3517 static int
3518 WXOR (ARMword instr)
3519 {
3520 ARMword psr = 0;
3521 ARMdword result;
3522
3523 if ((read_cp15_reg (15, 0, 1) & 3) != 3)
3524 return ARMul_CANT;
3525
3526 #ifdef DEBUG
3527 fprintf (stderr, "wxor\n");
3528 #endif
3529
3530 result = wR [BITS (16, 19)] ^ wR [BITS (0, 3)];
3531 wR [BITS (12, 15)] = result;
3532
3533 SIMD64_SET (psr, (result == 0), SIMD_ZBIT);
3534 SIMD64_SET (psr, (result & (1ULL << 63)), SIMD_NBIT);
3535
3536 wC [wCASF] = psr;
3537 wC [wCon] |= (WCON_CUP | WCON_MUP);
3538
3539 return ARMul_DONE;
3540 }
3541
3542 /* This switch table is moved to a separate function in order
3543 to work around a compiler bug in the host compiler... */
3544
3545 static int
3546 Process_Instruction (ARMul_State * state, ARMword instr)
3547 {
3548 int status = ARMul_BUSY;
3549
3550 switch ((BITS (20, 23) << 8) | BITS (4, 11))
3551 {
3552 case 0x000: status = WOR (instr); break;
3553 case 0x011: status = TMCR (state, instr); break;
3554 case 0x100: status = WXOR (instr); break;
3555 case 0x111: status = TMRC (state, instr); break;
3556 case 0x300: status = WANDN (instr); break;
3557 case 0x200: status = WAND (instr); break;
3558
3559 case 0x810: case 0xa10:
3560 status = WMADD (instr); break;
3561
3562 case 0x10e: case 0x50e: case 0x90e: case 0xd0e:
3563 status = WUNPCKIL (state, instr); break;
3564 case 0x10c: case 0x50c: case 0x90c: case 0xd0c:
3565 status = WUNPCKIH (state, instr); break;
3566 case 0x012: case 0x112: case 0x412: case 0x512:
3567 status = WSAD (instr); break;
3568 case 0x010: case 0x110: case 0x210: case 0x310:
3569 status = WMUL (instr); break;
3570 case 0x410: case 0x510: case 0x610: case 0x710:
3571 status = WMAC (instr); break;
3572 case 0x006: case 0x406: case 0x806: case 0xc06:
3573 status = WCMPEQ (state, instr); break;
3574 case 0x800: case 0x900: case 0xc00: case 0xd00:
3575 status = WAVG2 (instr); break;
3576 case 0x802: case 0x902: case 0xa02: case 0xb02:
3577 status = WALIGNR (state, instr); break;
3578 case 0x601: case 0x605: case 0x609: case 0x60d:
3579 status = TINSR (state, instr); break;
3580 case 0x107: case 0x507: case 0x907: case 0xd07:
3581 status = TEXTRM (state, instr); break;
3582 case 0x117: case 0x517: case 0x917: case 0xd17:
3583 status = TEXTRC (state, instr); break;
3584 case 0x401: case 0x405: case 0x409: case 0x40d:
3585 status = TBCST (state, instr); break;
3586 case 0x113: case 0x513: case 0x913: case 0xd13:
3587 status = TANDC (state, instr); break;
3588 case 0x01c: case 0x41c: case 0x81c: case 0xc1c:
3589 status = WACC (state, instr); break;
3590 case 0x115: case 0x515: case 0x915: case 0xd15:
3591 status = TORC (state, instr); break;
3592 case 0x103: case 0x503: case 0x903: case 0xd03:
3593 status = TMOVMSK (state, instr); break;
3594 case 0x106: case 0x306: case 0x506: case 0x706:
3595 case 0x906: case 0xb06: case 0xd06: case 0xf06:
3596 status = WCMPGT (state, instr); break;
3597 case 0x00e: case 0x20e: case 0x40e: case 0x60e:
3598 case 0x80e: case 0xa0e: case 0xc0e: case 0xe0e:
3599 status = WUNPCKEL (state, instr); break;
3600 case 0x00c: case 0x20c: case 0x40c: case 0x60c:
3601 case 0x80c: case 0xa0c: case 0xc0c: case 0xe0c:
3602 status = WUNPCKEH (state, instr); break;
3603 case 0x204: case 0x604: case 0xa04: case 0xe04:
3604 case 0x214: case 0x614: case 0xa14: case 0xe14:
3605 status = WSRL (state, instr); break;
3606 case 0x004: case 0x404: case 0x804: case 0xc04:
3607 case 0x014: case 0x414: case 0x814: case 0xc14:
3608 status = WSRA (state, instr); break;
3609 case 0x104: case 0x504: case 0x904: case 0xd04:
3610 case 0x114: case 0x514: case 0x914: case 0xd14:
3611 status = WSLL (state, instr); break;
3612 case 0x304: case 0x704: case 0xb04: case 0xf04:
3613 case 0x314: case 0x714: case 0xb14: case 0xf14:
3614 status = WROR (state, instr); break;
3615 case 0x116: case 0x316: case 0x516: case 0x716:
3616 case 0x916: case 0xb16: case 0xd16: case 0xf16:
3617 status = WMIN (state, instr); break;
3618 case 0x016: case 0x216: case 0x416: case 0x616:
3619 case 0x816: case 0xa16: case 0xc16: case 0xe16:
3620 status = WMAX (state, instr); break;
3621 case 0x002: case 0x102: case 0x202: case 0x302:
3622 case 0x402: case 0x502: case 0x602: case 0x702:
3623 status = WALIGNI (instr); break;
3624 case 0x01a: case 0x11a: case 0x21a: case 0x31a:
3625 case 0x41a: case 0x51a: case 0x61a: case 0x71a:
3626 case 0x81a: case 0x91a: case 0xa1a: case 0xb1a:
3627 case 0xc1a: case 0xd1a: case 0xe1a: case 0xf1a:
3628 status = WSUB (state, instr); break;
3629 case 0x01e: case 0x11e: case 0x21e: case 0x31e:
3630 case 0x41e: case 0x51e: case 0x61e: case 0x71e:
3631 case 0x81e: case 0x91e: case 0xa1e: case 0xb1e:
3632 case 0xc1e: case 0xd1e: case 0xe1e: case 0xf1e:
3633 status = WSHUFH (instr); break;
3634 case 0x018: case 0x118: case 0x218: case 0x318:
3635 case 0x418: case 0x518: case 0x618: case 0x718:
3636 case 0x818: case 0x918: case 0xa18: case 0xb18:
3637 case 0xc18: case 0xd18: case 0xe18: case 0xf18:
3638 status = WADD (state, instr); break;
3639 case 0x008: case 0x108: case 0x208: case 0x308:
3640 case 0x408: case 0x508: case 0x608: case 0x708:
3641 case 0x808: case 0x908: case 0xa08: case 0xb08:
3642 case 0xc08: case 0xd08: case 0xe08: case 0xf08:
3643 status = WPACK (state, instr); break;
3644 case 0x201: case 0x203: case 0x205: case 0x207:
3645 case 0x209: case 0x20b: case 0x20d: case 0x20f:
3646 case 0x211: case 0x213: case 0x215: case 0x217:
3647 case 0x219: case 0x21b: case 0x21d: case 0x21f:
3648 switch (BITS (16, 19))
3649 {
3650 case 0x0: status = TMIA (state, instr); break;
3651 case 0x8: status = TMIAPH (state, instr); break;
3652 case 0xc:
3653 case 0xd:
3654 case 0xe:
3655 case 0xf: status = TMIAxy (state, instr); break;
3656 default: break;
3657 }
3658 break;
3659 default:
3660 break;
3661 }
3662 return status;
3663 }
3664
3665 /* Process a possibly Intel(r) Wireless MMX(tm) technology instruction.
3666 Return true if the instruction was handled. */
3667
3668 int
3669 ARMul_HandleIwmmxt (ARMul_State * state, ARMword instr)
3670 {
3671 int status = ARMul_BUSY;
3672
3673 if (BITS (24, 27) == 0xe)
3674 {
3675 status = Process_Instruction (state, instr);
3676 }
3677 else if (BITS (25, 27) == 0x6)
3678 {
3679 if (BITS (4, 11) == 0x0 && BITS (20, 24) == 0x4)
3680 status = TMCRR (state, instr);
3681 else if (BITS (9, 11) == 0x0)
3682 {
3683 if (BIT (20) == 0x0)
3684 status = WSTR (state, instr);
3685 else if (BITS (20, 24) == 0x5)
3686 status = TMRRC (state, instr);
3687 else
3688 status = WLDR (state, instr);
3689 }
3690 }
3691
3692 if (status == ARMul_CANT)
3693 {
3694 /* If the instruction was a recognised but illegal,
3695 perform the abort here rather than returning false.
3696 If we return false then ARMul_MRC may be called which
3697 will still abort, but which also perform the register
3698 transfer... */
3699 ARMul_Abort (state, ARMul_UndefinedInstrV);
3700 status = ARMul_DONE;
3701 }
3702
3703 return status == ARMul_DONE;
3704 }
3705
3706 int
3707 Fetch_Iwmmxt_Register (unsigned int regnum, unsigned char * memory)
3708 {
3709 if (regnum >= 16)
3710 {
3711 memcpy (memory, wC + (regnum - 16), sizeof wC [0]);
3712 return sizeof wC [0];
3713 }
3714 else
3715 {
3716 memcpy (memory, wR + regnum, sizeof wR [0]);
3717 return sizeof wR [0];
3718 }
3719 }
3720
3721 int
3722 Store_Iwmmxt_Register (unsigned int regnum, unsigned char * memory)
3723 {
3724 if (regnum >= 16)
3725 {
3726 memcpy (wC + (regnum - 16), memory, sizeof wC [0]);
3727 return sizeof wC [0];
3728 }
3729 else
3730 {
3731 memcpy (wR + regnum, memory, sizeof wR [0]);
3732 return sizeof wR [0];
3733 }
3734 }
The GNU Binutils are a collection of binary tools.