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0f026fd0 | 1 | /* iwmmxt.c -- Intel(r) Wireless MMX(tm) technology co-processor interface. |
7b6bb8da JB |
2 | Copyright (C) 2002, 2007, 2008, 2009, 2010, 2011 |
3 | Free Software Foundation, Inc. | |
0f026fd0 NC |
4 | Contributed by matthew green (mrg@redhat.com). |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
4744ac1b | 8 | the Free Software Foundation; either version 3 of the License, or |
0f026fd0 | 9 | (at your option) any later version. |
4744ac1b | 10 | |
0f026fd0 NC |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
4744ac1b | 15 | |
0f026fd0 | 16 | You should have received a copy of the GNU General Public License |
4744ac1b | 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
0f026fd0 | 18 | |
a85c0b49 JS |
19 | #include <string.h> |
20 | ||
0f026fd0 NC |
21 | #include "armdefs.h" |
22 | #include "armos.h" | |
23 | #include "armemu.h" | |
24 | #include "ansidecl.h" | |
25 | #include "iwmmxt.h" | |
26 | ||
27 | /* #define DEBUG 1 */ | |
28 | ||
29 | /* Intel(r) Wireless MMX(tm) technology co-processor. | |
30 | It uses co-processor numbers (0 and 1). There are 16 vector registers wRx | |
31 | and 16 control registers wCx. Co-processors 0 and 1 are used in MCR/MRC | |
32 | to access wRx and wCx respectively. */ | |
33 | ||
34 | static ARMdword wR[16]; | |
35 | static ARMword wC[16] = { 0x69051010 }; | |
36 | ||
37 | #define SUBSTR(w,t,m,n) ((t)(w << ((sizeof (t) * 8 - 1) - (n))) \ | |
38 | >> (((sizeof (t) * 8 - 1) - (n)) + (m))) | |
39 | #define wCBITS(w,x,y) SUBSTR (wC[w], ARMword, x, y) | |
40 | #define wRBITS(w,x,y) SUBSTR (wR[w], ARMdword, x, y) | |
41 | #define wCID 0 | |
42 | #define wCon 1 | |
43 | #define wCSSF 2 | |
44 | #define wCASF 3 | |
45 | #define wCGR0 8 | |
46 | #define wCGR1 9 | |
47 | #define wCGR2 10 | |
48 | #define wCGR3 11 | |
49 | ||
50 | /* Bits in the wCon register. */ | |
51 | #define WCON_CUP (1 << 0) | |
52 | #define WCON_MUP (1 << 1) | |
53 | ||
54 | /* Set the SIMD wCASF flags for 8, 16, 32 or 64-bit operations. */ | |
55 | #define SIMD8_SET(x, v, n, b) (x) |= ((v != 0) << ((((b) + 1) * 4) + (n))) | |
56 | #define SIMD16_SET(x, v, n, h) (x) |= ((v != 0) << ((((h) + 1) * 8) + (n))) | |
57 | #define SIMD32_SET(x, v, n, w) (x) |= ((v != 0) << ((((w) + 1) * 16) + (n))) | |
58 | #define SIMD64_SET(x, v, n) (x) |= ((v != 0) << (32 + (n))) | |
59 | ||
60 | /* Flags to pass as "n" above. */ | |
61 | #define SIMD_NBIT -1 | |
62 | #define SIMD_ZBIT -2 | |
63 | #define SIMD_CBIT -3 | |
64 | #define SIMD_VBIT -4 | |
65 | ||
66 | /* Various status bit macros. */ | |
67 | #define NBIT8(x) ((x) & 0x80) | |
68 | #define NBIT16(x) ((x) & 0x8000) | |
69 | #define NBIT32(x) ((x) & 0x80000000) | |
70 | #define NBIT64(x) ((x) & 0x8000000000000000ULL) | |
71 | #define ZBIT8(x) (((x) & 0xff) == 0) | |
72 | #define ZBIT16(x) (((x) & 0xffff) == 0) | |
73 | #define ZBIT32(x) (((x) & 0xffffffff) == 0) | |
74 | #define ZBIT64(x) (x == 0) | |
75 | ||
76 | /* Access byte/half/word "n" of register "x". */ | |
77 | #define wRBYTE(x,n) wRBITS ((x), (n) * 8, (n) * 8 + 7) | |
78 | #define wRHALF(x,n) wRBITS ((x), (n) * 16, (n) * 16 + 15) | |
79 | #define wRWORD(x,n) wRBITS ((x), (n) * 32, (n) * 32 + 31) | |
80 | ||
81 | /* Macro to handle how the G bit selects wCGR registers. */ | |
82 | #define DECODE_G_BIT(state, instr, shift) \ | |
83 | { \ | |
84 | unsigned int reg; \ | |
85 | \ | |
86 | reg = BITS (0, 3); \ | |
87 | \ | |
88 | if (BIT (8)) /* G */ \ | |
89 | { \ | |
90 | if (reg < wCGR0 || reg > wCGR3) \ | |
91 | { \ | |
92 | ARMul_UndefInstr (state, instr); \ | |
93 | return ARMul_DONE; \ | |
94 | } \ | |
95 | shift = wC [reg]; \ | |
96 | } \ | |
97 | else \ | |
98 | shift = wR [reg]; \ | |
99 | \ | |
100 | shift &= 0xff; \ | |
101 | } | |
102 | ||
103 | /* Index calculations for the satrv[] array. */ | |
104 | #define BITIDX8(x) (x) | |
105 | #define BITIDX16(x) (((x) + 1) * 2 - 1) | |
106 | #define BITIDX32(x) (((x) + 1) * 4 - 1) | |
107 | ||
108 | /* Sign extension macros. */ | |
109 | #define EXTEND8(a) ((a) & 0x80 ? ((a) | 0xffffff00) : (a)) | |
110 | #define EXTEND16(a) ((a) & 0x8000 ? ((a) | 0xffff0000) : (a)) | |
111 | #define EXTEND32(a) ((a) & 0x80000000ULL ? ((a) | 0xffffffff00000000ULL) : (a)) | |
112 | ||
113 | /* Set the wCSSF from 8 values. */ | |
114 | #define SET_wCSSF(a,b,c,d,e,f,g,h) \ | |
115 | wC[wCSSF] = (((h) != 0) << 7) | (((g) != 0) << 6) \ | |
116 | | (((f) != 0) << 5) | (((e) != 0) << 4) \ | |
117 | | (((d) != 0) << 3) | (((c) != 0) << 2) \ | |
118 | | (((b) != 0) << 1) | (((a) != 0) << 0); | |
119 | ||
120 | /* Set the wCSSR from an array with 8 values. */ | |
121 | #define SET_wCSSFvec(v) \ | |
122 | SET_wCSSF((v)[0],(v)[1],(v)[2],(v)[3],(v)[4],(v)[5],(v)[6],(v)[7]) | |
123 | ||
124 | /* Size qualifiers for vector operations. */ | |
125 | #define Bqual 0 | |
126 | #define Hqual 1 | |
127 | #define Wqual 2 | |
128 | #define Dqual 3 | |
129 | ||
130 | /* Saturation qualifiers for vector operations. */ | |
131 | #define NoSaturation 0 | |
132 | #define UnsignedSaturation 1 | |
133 | #define SignedSaturation 3 | |
134 | ||
135 | \f | |
136 | /* Prototypes. */ | |
137 | static ARMword Add32 (ARMword, ARMword, int *, int *, ARMword); | |
138 | static ARMdword AddS32 (ARMdword, ARMdword, int *, int *); | |
139 | static ARMdword AddU32 (ARMdword, ARMdword, int *, int *); | |
140 | static ARMword AddS16 (ARMword, ARMword, int *, int *); | |
141 | static ARMword AddU16 (ARMword, ARMword, int *, int *); | |
142 | static ARMword AddS8 (ARMword, ARMword, int *, int *); | |
143 | static ARMword AddU8 (ARMword, ARMword, int *, int *); | |
144 | static ARMword Sub32 (ARMword, ARMword, int *, int *, ARMword); | |
145 | static ARMdword SubS32 (ARMdword, ARMdword, int *, int *); | |
146 | static ARMdword SubU32 (ARMdword, ARMdword, int *, int *); | |
147 | static ARMword SubS16 (ARMword, ARMword, int *, int *); | |
148 | static ARMword SubS8 (ARMword, ARMword, int *, int *); | |
149 | static ARMword SubU16 (ARMword, ARMword, int *, int *); | |
150 | static ARMword SubU8 (ARMword, ARMword, int *, int *); | |
151 | static unsigned char IwmmxtSaturateU8 (signed short, int *); | |
152 | static signed char IwmmxtSaturateS8 (signed short, int *); | |
153 | static unsigned short IwmmxtSaturateU16 (signed int, int *); | |
154 | static signed short IwmmxtSaturateS16 (signed int, int *); | |
155 | static unsigned long IwmmxtSaturateU32 (signed long long, int *); | |
156 | static signed long IwmmxtSaturateS32 (signed long long, int *); | |
157 | static ARMword Compute_Iwmmxt_Address (ARMul_State *, ARMword, int *); | |
158 | static ARMdword Iwmmxt_Load_Double_Word (ARMul_State *, ARMword); | |
159 | static ARMword Iwmmxt_Load_Word (ARMul_State *, ARMword); | |
160 | static ARMword Iwmmxt_Load_Half_Word (ARMul_State *, ARMword); | |
161 | static ARMword Iwmmxt_Load_Byte (ARMul_State *, ARMword); | |
162 | static void Iwmmxt_Store_Double_Word (ARMul_State *, ARMword, ARMdword); | |
163 | static void Iwmmxt_Store_Word (ARMul_State *, ARMword, ARMword); | |
164 | static void Iwmmxt_Store_Half_Word (ARMul_State *, ARMword, ARMword); | |
165 | static void Iwmmxt_Store_Byte (ARMul_State *, ARMword, ARMword); | |
166 | static int Process_Instruction (ARMul_State *, ARMword); | |
167 | ||
168 | static int TANDC (ARMul_State *, ARMword); | |
169 | static int TBCST (ARMul_State *, ARMword); | |
170 | static int TEXTRC (ARMul_State *, ARMword); | |
171 | static int TEXTRM (ARMul_State *, ARMword); | |
172 | static int TINSR (ARMul_State *, ARMword); | |
173 | static int TMCR (ARMul_State *, ARMword); | |
174 | static int TMCRR (ARMul_State *, ARMword); | |
175 | static int TMIA (ARMul_State *, ARMword); | |
176 | static int TMIAPH (ARMul_State *, ARMword); | |
177 | static int TMIAxy (ARMul_State *, ARMword); | |
178 | static int TMOVMSK (ARMul_State *, ARMword); | |
179 | static int TMRC (ARMul_State *, ARMword); | |
180 | static int TMRRC (ARMul_State *, ARMword); | |
181 | static int TORC (ARMul_State *, ARMword); | |
182 | static int WACC (ARMul_State *, ARMword); | |
183 | static int WADD (ARMul_State *, ARMword); | |
184 | static int WALIGNI (ARMword); | |
185 | static int WALIGNR (ARMul_State *, ARMword); | |
186 | static int WAND (ARMword); | |
187 | static int WANDN (ARMword); | |
188 | static int WAVG2 (ARMword); | |
189 | static int WCMPEQ (ARMul_State *, ARMword); | |
190 | static int WCMPGT (ARMul_State *, ARMword); | |
191 | static int WLDR (ARMul_State *, ARMword); | |
192 | static int WMAC (ARMword); | |
193 | static int WMADD (ARMword); | |
194 | static int WMAX (ARMul_State *, ARMword); | |
195 | static int WMIN (ARMul_State *, ARMword); | |
196 | static int WMUL (ARMword); | |
197 | static int WOR (ARMword); | |
198 | static int WPACK (ARMul_State *, ARMword); | |
199 | static int WROR (ARMul_State *, ARMword); | |
200 | static int WSAD (ARMword); | |
201 | static int WSHUFH (ARMword); | |
202 | static int WSLL (ARMul_State *, ARMword); | |
203 | static int WSRA (ARMul_State *, ARMword); | |
204 | static int WSRL (ARMul_State *, ARMword); | |
205 | static int WSTR (ARMul_State *, ARMword); | |
206 | static int WSUB (ARMul_State *, ARMword); | |
207 | static int WUNPCKEH (ARMul_State *, ARMword); | |
208 | static int WUNPCKEL (ARMul_State *, ARMword); | |
209 | static int WUNPCKIH (ARMul_State *, ARMword); | |
210 | static int WUNPCKIL (ARMul_State *, ARMword); | |
211 | static int WXOR (ARMword); | |
212 | \f | |
213 | /* This function does the work of adding two 32bit values | |
214 | together, and calculating if a carry has occurred. */ | |
215 | ||
216 | static ARMword | |
217 | Add32 (ARMword a1, | |
218 | ARMword a2, | |
219 | int * carry_ptr, | |
220 | int * overflow_ptr, | |
221 | ARMword sign_mask) | |
222 | { | |
223 | ARMword result = (a1 + a2); | |
224 | unsigned int uresult = (unsigned int) result; | |
225 | unsigned int ua1 = (unsigned int) a1; | |
226 | ||
227 | /* If (result == a1) and (a2 == 0), | |
228 | or (result > a2) then we have no carry. */ | |
229 | * carry_ptr = ((uresult == ua1) ? (a2 != 0) : (uresult < ua1)); | |
230 | ||
231 | /* Overflow occurs when both arguments are the | |
232 | same sign, but the result is a different sign. */ | |
233 | * overflow_ptr = ( ( (result & sign_mask) && !(a1 & sign_mask) && !(a2 & sign_mask)) | |
234 | || (!(result & sign_mask) && (a1 & sign_mask) && (a2 & sign_mask))); | |
235 | ||
236 | return result; | |
237 | } | |
238 | ||
239 | static ARMdword | |
240 | AddS32 (ARMdword a1, ARMdword a2, int * carry_ptr, int * overflow_ptr) | |
241 | { | |
242 | ARMdword result; | |
243 | unsigned int uresult; | |
244 | unsigned int ua1; | |
245 | ||
246 | a1 = EXTEND32 (a1); | |
247 | a2 = EXTEND32 (a2); | |
248 | ||
249 | result = a1 + a2; | |
250 | uresult = (unsigned int) result; | |
251 | ua1 = (unsigned int) a1; | |
252 | ||
253 | * carry_ptr = ((uresult == a1) ? (a2 != 0) : (uresult < ua1)); | |
254 | ||
255 | * overflow_ptr = ( ( (result & 0x80000000ULL) && !(a1 & 0x80000000ULL) && !(a2 & 0x80000000ULL)) | |
256 | || (!(result & 0x80000000ULL) && (a1 & 0x80000000ULL) && (a2 & 0x80000000ULL))); | |
257 | ||
258 | return result; | |
259 | } | |
260 | ||
261 | static ARMdword | |
262 | AddU32 (ARMdword a1, ARMdword a2, int * carry_ptr, int * overflow_ptr) | |
263 | { | |
264 | ARMdword result; | |
265 | unsigned int uresult; | |
266 | unsigned int ua1; | |
267 | ||
268 | a1 &= 0xffffffff; | |
269 | a2 &= 0xffffffff; | |
270 | ||
271 | result = a1 + a2; | |
272 | uresult = (unsigned int) result; | |
273 | ua1 = (unsigned int) a1; | |
274 | ||
275 | * carry_ptr = ((uresult == a1) ? (a2 != 0) : (uresult < ua1)); | |
276 | ||
277 | * overflow_ptr = ( ( (result & 0x80000000ULL) && !(a1 & 0x80000000ULL) && !(a2 & 0x80000000ULL)) | |
278 | || (!(result & 0x80000000ULL) && (a1 & 0x80000000ULL) && (a2 & 0x80000000ULL))); | |
279 | ||
280 | return result; | |
281 | } | |
282 | ||
283 | static ARMword | |
284 | AddS16 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr) | |
285 | { | |
286 | a1 = EXTEND16 (a1); | |
287 | a2 = EXTEND16 (a2); | |
288 | ||
289 | return Add32 (a1, a2, carry_ptr, overflow_ptr, 0x8000); | |
290 | } | |
291 | ||
292 | static ARMword | |
293 | AddU16 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr) | |
294 | { | |
295 | a1 &= 0xffff; | |
296 | a2 &= 0xffff; | |
297 | ||
298 | return Add32 (a1, a2, carry_ptr, overflow_ptr, 0x8000); | |
299 | } | |
300 | ||
301 | static ARMword | |
302 | AddS8 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr) | |
303 | { | |
304 | a1 = EXTEND8 (a1); | |
305 | a2 = EXTEND8 (a2); | |
306 | ||
307 | return Add32 (a1, a2, carry_ptr, overflow_ptr, 0x80); | |
308 | } | |
309 | ||
310 | static ARMword | |
311 | AddU8 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr) | |
312 | { | |
313 | a1 &= 0xff; | |
314 | a2 &= 0xff; | |
315 | ||
316 | return Add32 (a1, a2, carry_ptr, overflow_ptr, 0x80); | |
317 | } | |
318 | ||
319 | static ARMword | |
320 | Sub32 (ARMword a1, | |
321 | ARMword a2, | |
322 | int * borrow_ptr, | |
323 | int * overflow_ptr, | |
324 | ARMword sign_mask) | |
325 | { | |
326 | ARMword result = (a1 - a2); | |
327 | unsigned int ua1 = (unsigned int) a1; | |
328 | unsigned int ua2 = (unsigned int) a2; | |
329 | ||
330 | /* A borrow occurs if a2 is (unsigned) larger than a1. | |
331 | However the carry flag is *cleared* if a borrow occurs. */ | |
332 | * borrow_ptr = ! (ua2 > ua1); | |
333 | ||
334 | /* Overflow occurs when a negative number is subtracted from a | |
335 | positive number and the result is negative or a positive | |
336 | number is subtracted from a negative number and the result is | |
337 | positive. */ | |
338 | * overflow_ptr = ( (! (a1 & sign_mask) && (a2 & sign_mask) && (result & sign_mask)) | |
339 | || ((a1 & sign_mask) && ! (a2 & sign_mask) && ! (result & sign_mask))); | |
340 | ||
341 | return result; | |
342 | } | |
343 | ||
344 | static ARMdword | |
345 | SubS32 (ARMdword a1, ARMdword a2, int * borrow_ptr, int * overflow_ptr) | |
346 | { | |
347 | ARMdword result; | |
348 | unsigned int ua1; | |
349 | unsigned int ua2; | |
350 | ||
351 | a1 = EXTEND32 (a1); | |
352 | a2 = EXTEND32 (a2); | |
353 | ||
354 | result = a1 - a2; | |
355 | ua1 = (unsigned int) a1; | |
356 | ua2 = (unsigned int) a2; | |
357 | ||
358 | * borrow_ptr = ! (ua2 > ua1); | |
359 | ||
360 | * overflow_ptr = ( (! (a1 & 0x80000000ULL) && (a2 & 0x80000000ULL) && (result & 0x80000000ULL)) | |
361 | || ((a1 & 0x80000000ULL) && ! (a2 & 0x80000000ULL) && ! (result & 0x80000000ULL))); | |
362 | ||
363 | return result; | |
364 | } | |
365 | ||
366 | static ARMword | |
367 | SubS16 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr) | |
368 | { | |
369 | a1 = EXTEND16 (a1); | |
370 | a2 = EXTEND16 (a2); | |
371 | ||
372 | return Sub32 (a1, a2, carry_ptr, overflow_ptr, 0x8000); | |
373 | } | |
374 | ||
375 | static ARMword | |
376 | SubS8 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr) | |
377 | { | |
378 | a1 = EXTEND8 (a1); | |
379 | a2 = EXTEND8 (a2); | |
380 | ||
381 | return Sub32 (a1, a2, carry_ptr, overflow_ptr, 0x80); | |
382 | } | |
383 | ||
384 | static ARMword | |
385 | SubU16 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr) | |
386 | { | |
387 | a1 &= 0xffff; | |
388 | a2 &= 0xffff; | |
389 | ||
390 | return Sub32 (a1, a2, carry_ptr, overflow_ptr, 0x8000); | |
391 | } | |
392 | ||
393 | static ARMword | |
394 | SubU8 (ARMword a1, ARMword a2, int * carry_ptr, int * overflow_ptr) | |
395 | { | |
396 | a1 &= 0xff; | |
397 | a2 &= 0xff; | |
398 | ||
399 | return Sub32 (a1, a2, carry_ptr, overflow_ptr, 0x80); | |
400 | } | |
401 | ||
402 | static ARMdword | |
403 | SubU32 (ARMdword a1, ARMdword a2, int * borrow_ptr, int * overflow_ptr) | |
404 | { | |
405 | ARMdword result; | |
406 | unsigned int ua1; | |
407 | unsigned int ua2; | |
408 | ||
409 | a1 &= 0xffffffff; | |
410 | a2 &= 0xffffffff; | |
411 | ||
412 | result = a1 - a2; | |
413 | ua1 = (unsigned int) a1; | |
414 | ua2 = (unsigned int) a2; | |
415 | ||
416 | * borrow_ptr = ! (ua2 > ua1); | |
417 | ||
418 | * overflow_ptr = ( (! (a1 & 0x80000000ULL) && (a2 & 0x80000000ULL) && (result & 0x80000000ULL)) | |
419 | || ((a1 & 0x80000000ULL) && ! (a2 & 0x80000000ULL) && ! (result & 0x80000000ULL))); | |
420 | ||
421 | return result; | |
422 | } | |
423 | ||
424 | /* For the saturation. */ | |
425 | ||
426 | static unsigned char | |
427 | IwmmxtSaturateU8 (signed short val, int * sat) | |
428 | { | |
429 | unsigned char rv; | |
430 | ||
431 | if (val < 0) | |
432 | { | |
433 | rv = 0; | |
434 | *sat = 1; | |
435 | } | |
436 | else if (val > 0xff) | |
437 | { | |
438 | rv = 0xff; | |
439 | *sat = 1; | |
440 | } | |
441 | else | |
442 | { | |
443 | rv = val & 0xff; | |
444 | *sat = 0; | |
445 | } | |
446 | return rv; | |
447 | } | |
448 | ||
449 | static signed char | |
450 | IwmmxtSaturateS8 (signed short val, int * sat) | |
451 | { | |
452 | signed char rv; | |
453 | ||
454 | if (val < -0x80) | |
455 | { | |
456 | rv = -0x80; | |
457 | *sat = 1; | |
458 | } | |
459 | else if (val > 0x7f) | |
460 | { | |
461 | rv = 0x7f; | |
462 | *sat = 1; | |
463 | } | |
464 | else | |
465 | { | |
466 | rv = val & 0xff; | |
467 | *sat = 0; | |
468 | } | |
469 | return rv; | |
470 | } | |
471 | ||
472 | static unsigned short | |
473 | IwmmxtSaturateU16 (signed int val, int * sat) | |
474 | { | |
475 | unsigned short rv; | |
476 | ||
477 | if (val < 0) | |
478 | { | |
479 | rv = 0; | |
480 | *sat = 1; | |
481 | } | |
482 | else if (val > 0xffff) | |
483 | { | |
484 | rv = 0xffff; | |
485 | *sat = 1; | |
486 | } | |
487 | else | |
488 | { | |
489 | rv = val & 0xffff; | |
490 | *sat = 0; | |
491 | } | |
492 | return rv; | |
493 | } | |
494 | ||
495 | static signed short | |
496 | IwmmxtSaturateS16 (signed int val, int * sat) | |
497 | { | |
498 | signed short rv; | |
499 | ||
500 | if (val < -0x8000) | |
501 | { | |
502 | rv = - 0x8000; | |
503 | *sat = 1; | |
504 | } | |
505 | else if (val > 0x7fff) | |
506 | { | |
507 | rv = 0x7fff; | |
508 | *sat = 1; | |
509 | } | |
510 | else | |
511 | { | |
512 | rv = val & 0xffff; | |
513 | *sat = 0; | |
514 | } | |
515 | return rv; | |
516 | } | |
517 | ||
518 | static unsigned long | |
519 | IwmmxtSaturateU32 (signed long long val, int * sat) | |
520 | { | |
521 | unsigned long rv; | |
522 | ||
523 | if (val < 0) | |
524 | { | |
525 | rv = 0; | |
526 | *sat = 1; | |
527 | } | |
528 | else if (val > 0xffffffff) | |
529 | { | |
530 | rv = 0xffffffff; | |
531 | *sat = 1; | |
532 | } | |
533 | else | |
534 | { | |
535 | rv = val & 0xffffffff; | |
536 | *sat = 0; | |
537 | } | |
538 | return rv; | |
539 | } | |
540 | ||
541 | static signed long | |
542 | IwmmxtSaturateS32 (signed long long val, int * sat) | |
543 | { | |
544 | signed long rv; | |
545 | ||
546 | if (val < -0x80000000LL) | |
547 | { | |
548 | rv = -0x80000000; | |
549 | *sat = 1; | |
550 | } | |
551 | else if (val > 0x7fffffff) | |
552 | { | |
553 | rv = 0x7fffffff; | |
554 | *sat = 1; | |
555 | } | |
556 | else | |
557 | { | |
558 | rv = val & 0xffffffff; | |
559 | *sat = 0; | |
560 | } | |
561 | return rv; | |
562 | } | |
563 | ||
564 | /* Intel(r) Wireless MMX(tm) technology Acessor functions. */ | |
565 | ||
566 | unsigned | |
567 | IwmmxtLDC (ARMul_State * state ATTRIBUTE_UNUSED, | |
568 | unsigned type ATTRIBUTE_UNUSED, | |
569 | ARMword instr, | |
570 | ARMword data) | |
571 | { | |
572 | return ARMul_CANT; | |
573 | } | |
574 | ||
575 | unsigned | |
576 | IwmmxtSTC (ARMul_State * state ATTRIBUTE_UNUSED, | |
577 | unsigned type ATTRIBUTE_UNUSED, | |
578 | ARMword instr, | |
579 | ARMword * data) | |
580 | { | |
581 | return ARMul_CANT; | |
582 | } | |
583 | ||
584 | unsigned | |
585 | IwmmxtMRC (ARMul_State * state ATTRIBUTE_UNUSED, | |
586 | unsigned type ATTRIBUTE_UNUSED, | |
587 | ARMword instr, | |
588 | ARMword * value) | |
589 | { | |
590 | return ARMul_CANT; | |
591 | } | |
592 | ||
593 | unsigned | |
594 | IwmmxtMCR (ARMul_State * state ATTRIBUTE_UNUSED, | |
595 | unsigned type ATTRIBUTE_UNUSED, | |
596 | ARMword instr, | |
597 | ARMword value) | |
598 | { | |
599 | return ARMul_CANT; | |
600 | } | |
601 | ||
602 | unsigned | |
603 | IwmmxtCDP (ARMul_State * state, unsigned type, ARMword instr) | |
604 | { | |
605 | return ARMul_CANT; | |
606 | } | |
607 | ||
608 | /* Intel(r) Wireless MMX(tm) technology instruction implementations. */ | |
609 | ||
610 | static int | |
611 | TANDC (ARMul_State * state, ARMword instr) | |
612 | { | |
613 | ARMword cpsr; | |
614 | ||
615 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
616 | return ARMul_CANT; | |
617 | ||
618 | #ifdef DEBUG | |
619 | fprintf (stderr, "tandc\n"); | |
620 | #endif | |
621 | ||
622 | /* The Rd field must be r15. */ | |
623 | if (BITS (12, 15) != 15) | |
624 | return ARMul_CANT; | |
625 | ||
626 | /* The CRn field must be r3. */ | |
627 | if (BITS (16, 19) != 3) | |
628 | return ARMul_CANT; | |
629 | ||
630 | /* The CRm field must be r0. */ | |
631 | if (BITS (0, 3) != 0) | |
632 | return ARMul_CANT; | |
633 | ||
634 | cpsr = ARMul_GetCPSR (state) & 0x0fffffff; | |
635 | ||
636 | switch (BITS (22, 23)) | |
637 | { | |
638 | case Bqual: | |
639 | cpsr |= ( (wCBITS (wCASF, 28, 31) & wCBITS (wCASF, 24, 27) | |
640 | & wCBITS (wCASF, 20, 23) & wCBITS (wCASF, 16, 19) | |
641 | & wCBITS (wCASF, 12, 15) & wCBITS (wCASF, 8, 11) | |
642 | & wCBITS (wCASF, 4, 7) & wCBITS (wCASF, 0, 3)) << 28); | |
643 | break; | |
644 | ||
645 | case Hqual: | |
646 | cpsr |= ( (wCBITS (wCASF, 28, 31) & wCBITS (wCASF, 20, 23) | |
647 | & wCBITS (wCASF, 12, 15) & wCBITS (wCASF, 4, 7)) << 28); | |
648 | break; | |
649 | ||
650 | case Wqual: | |
651 | cpsr |= ((wCBITS (wCASF, 28, 31) & wCBITS (wCASF, 12, 15)) << 28); | |
652 | break; | |
653 | ||
654 | default: | |
655 | ARMul_UndefInstr (state, instr); | |
656 | return ARMul_DONE; | |
657 | } | |
658 | ||
659 | ARMul_SetCPSR (state, cpsr); | |
660 | ||
661 | return ARMul_DONE; | |
662 | } | |
663 | ||
664 | static int | |
665 | TBCST (ARMul_State * state, ARMword instr) | |
666 | { | |
667 | ARMdword Rn; | |
668 | int wRd; | |
669 | ||
670 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
671 | return ARMul_CANT; | |
672 | ||
673 | #ifdef DEBUG | |
674 | fprintf (stderr, "tbcst\n"); | |
675 | #endif | |
676 | ||
677 | Rn = state->Reg [BITS (12, 15)]; | |
678 | if (BITS (12, 15) == 15) | |
679 | Rn &= 0xfffffffc; | |
680 | ||
681 | wRd = BITS (16, 19); | |
682 | ||
683 | switch (BITS (6, 7)) | |
684 | { | |
685 | case Bqual: | |
686 | Rn &= 0xff; | |
687 | wR [wRd] = (Rn << 56) | (Rn << 48) | (Rn << 40) | (Rn << 32) | |
688 | | (Rn << 24) | (Rn << 16) | (Rn << 8) | Rn; | |
689 | break; | |
690 | ||
691 | case Hqual: | |
692 | Rn &= 0xffff; | |
693 | wR [wRd] = (Rn << 48) | (Rn << 32) | (Rn << 16) | Rn; | |
694 | break; | |
695 | ||
696 | case Wqual: | |
697 | Rn &= 0xffffffff; | |
698 | wR [wRd] = (Rn << 32) | Rn; | |
699 | break; | |
700 | ||
701 | default: | |
702 | ARMul_UndefInstr (state, instr); | |
703 | break; | |
704 | } | |
705 | ||
706 | wC [wCon] |= WCON_MUP; | |
707 | return ARMul_DONE; | |
708 | } | |
709 | ||
710 | static int | |
711 | TEXTRC (ARMul_State * state, ARMword instr) | |
712 | { | |
713 | ARMword cpsr; | |
714 | ARMword selector; | |
715 | ||
716 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
717 | return ARMul_CANT; | |
718 | ||
719 | #ifdef DEBUG | |
720 | fprintf (stderr, "textrc\n"); | |
721 | #endif | |
722 | ||
723 | /* The Rd field must be r15. */ | |
724 | if (BITS (12, 15) != 15) | |
725 | return ARMul_CANT; | |
726 | ||
727 | /* The CRn field must be r3. */ | |
728 | if (BITS (16, 19) != 3) | |
729 | return ARMul_CANT; | |
730 | ||
731 | /* The CRm field must be 0xxx. */ | |
732 | if (BIT (3) != 0) | |
733 | return ARMul_CANT; | |
734 | ||
735 | selector = BITS (0, 2); | |
736 | cpsr = ARMul_GetCPSR (state) & 0x0fffffff; | |
737 | ||
738 | switch (BITS (22, 23)) | |
739 | { | |
740 | case Bqual: selector *= 4; break; | |
741 | case Hqual: selector = ((selector & 3) * 8) + 4; break; | |
742 | case Wqual: selector = ((selector & 1) * 16) + 12; break; | |
743 | ||
744 | default: | |
745 | ARMul_UndefInstr (state, instr); | |
746 | return ARMul_DONE; | |
747 | } | |
748 | ||
749 | cpsr |= wCBITS (wCASF, selector, selector + 3) << 28; | |
750 | ARMul_SetCPSR (state, cpsr); | |
751 | ||
752 | return ARMul_DONE; | |
753 | } | |
754 | ||
755 | static int | |
756 | TEXTRM (ARMul_State * state, ARMword instr) | |
757 | { | |
758 | ARMword Rd; | |
759 | int offset; | |
760 | int wRn; | |
761 | int sign; | |
762 | ||
763 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
764 | return ARMul_CANT; | |
765 | ||
766 | #ifdef DEBUG | |
767 | fprintf (stderr, "textrm\n"); | |
768 | #endif | |
769 | ||
770 | wRn = BITS (16, 19); | |
771 | sign = BIT (3); | |
772 | offset = BITS (0, 2); | |
773 | ||
774 | switch (BITS (22, 23)) | |
775 | { | |
776 | case Bqual: | |
777 | offset *= 8; | |
778 | Rd = wRBITS (wRn, offset, offset + 7); | |
779 | if (sign) | |
780 | Rd = EXTEND8 (Rd); | |
781 | break; | |
782 | ||
783 | case Hqual: | |
784 | offset = (offset & 3) * 16; | |
785 | Rd = wRBITS (wRn, offset, offset + 15); | |
786 | if (sign) | |
787 | Rd = EXTEND16 (Rd); | |
788 | break; | |
789 | ||
790 | case Wqual: | |
791 | offset = (offset & 1) * 32; | |
792 | Rd = wRBITS (wRn, offset, offset + 31); | |
793 | break; | |
794 | ||
795 | default: | |
796 | ARMul_UndefInstr (state, instr); | |
797 | return ARMul_DONE; | |
798 | } | |
799 | ||
800 | if (BITS (12, 15) == 15) | |
801 | ARMul_UndefInstr (state, instr); | |
802 | else | |
803 | state->Reg [BITS (12, 15)] = Rd; | |
804 | ||
805 | return ARMul_DONE; | |
806 | } | |
807 | ||
808 | static int | |
809 | TINSR (ARMul_State * state, ARMword instr) | |
810 | { | |
811 | ARMdword data; | |
812 | ARMword offset; | |
813 | int wRd; | |
814 | ||
815 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
816 | return ARMul_CANT; | |
817 | ||
818 | #ifdef DEBUG | |
819 | fprintf (stderr, "tinsr\n"); | |
820 | #endif | |
821 | ||
822 | wRd = BITS (16, 19); | |
823 | data = state->Reg [BITS (12, 15)]; | |
824 | offset = BITS (0, 2); | |
825 | ||
826 | switch (BITS (6, 7)) | |
827 | { | |
828 | case Bqual: | |
829 | data &= 0xff; | |
830 | switch (offset) | |
831 | { | |
832 | case 0: wR [wRd] = data | (wRBITS (wRd, 8, 63) << 8); break; | |
833 | case 1: wR [wRd] = wRBITS (wRd, 0, 7) | (data << 8) | (wRBITS (wRd, 16, 63) << 16); break; | |
834 | case 2: wR [wRd] = wRBITS (wRd, 0, 15) | (data << 16) | (wRBITS (wRd, 24, 63) << 24); break; | |
835 | case 3: wR [wRd] = wRBITS (wRd, 0, 23) | (data << 24) | (wRBITS (wRd, 32, 63) << 32); break; | |
836 | case 4: wR [wRd] = wRBITS (wRd, 0, 31) | (data << 32) | (wRBITS (wRd, 40, 63) << 40); break; | |
837 | case 5: wR [wRd] = wRBITS (wRd, 0, 39) | (data << 40) | (wRBITS (wRd, 48, 63) << 48); break; | |
838 | case 6: wR [wRd] = wRBITS (wRd, 0, 47) | (data << 48) | (wRBITS (wRd, 56, 63) << 56); break; | |
839 | case 7: wR [wRd] = wRBITS (wRd, 0, 55) | (data << 56); break; | |
840 | } | |
841 | break; | |
842 | ||
843 | case Hqual: | |
844 | data &= 0xffff; | |
845 | ||
846 | switch (offset & 3) | |
847 | { | |
848 | case 0: wR [wRd] = data | (wRBITS (wRd, 16, 63) << 16); break; | |
849 | case 1: wR [wRd] = wRBITS (wRd, 0, 15) | (data << 16) | (wRBITS (wRd, 32, 63) << 32); break; | |
850 | case 2: wR [wRd] = wRBITS (wRd, 0, 31) | (data << 32) | (wRBITS (wRd, 48, 63) << 48); break; | |
851 | case 3: wR [wRd] = wRBITS (wRd, 0, 47) | (data << 48); break; | |
852 | } | |
853 | break; | |
854 | ||
855 | case Wqual: | |
856 | if (offset & 1) | |
857 | wR [wRd] = wRBITS (wRd, 0, 31) | (data << 32); | |
858 | else | |
859 | wR [wRd] = (wRBITS (wRd, 32, 63) << 32) | data; | |
860 | break; | |
861 | ||
862 | default: | |
863 | ARMul_UndefInstr (state, instr); | |
864 | break; | |
865 | } | |
866 | ||
867 | wC [wCon] |= WCON_MUP; | |
868 | return ARMul_DONE; | |
869 | } | |
870 | ||
871 | static int | |
872 | TMCR (ARMul_State * state, ARMword instr) | |
873 | { | |
874 | ARMword val; | |
875 | int wCreg; | |
876 | ||
877 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
878 | return ARMul_CANT; | |
879 | ||
880 | #ifdef DEBUG | |
881 | fprintf (stderr, "tmcr\n"); | |
882 | #endif | |
883 | ||
884 | if (BITS (0, 3) != 0) | |
885 | return ARMul_CANT; | |
886 | ||
887 | val = state->Reg [BITS (12, 15)]; | |
888 | if (BITS (12, 15) == 15) | |
889 | val &= 0xfffffffc; | |
890 | ||
891 | wCreg = BITS (16, 19); | |
892 | ||
893 | switch (wCreg) | |
894 | { | |
895 | case wCID: | |
896 | /* The wCID register is read only. */ | |
897 | break; | |
898 | ||
899 | case wCon: | |
900 | /* Writing to the MUP or CUP bits clears them. */ | |
901 | wC [wCon] &= ~ (val & 0x3); | |
902 | break; | |
903 | ||
904 | case wCSSF: | |
905 | /* Only the bottom 8 bits can be written to. | |
906 | The higher bits write as zero. */ | |
907 | wC [wCSSF] = (val & 0xff); | |
908 | wC [wCon] |= WCON_CUP; | |
909 | break; | |
910 | ||
911 | default: | |
912 | wC [wCreg] = val; | |
913 | wC [wCon] |= WCON_CUP; | |
914 | break; | |
915 | } | |
916 | ||
917 | return ARMul_DONE; | |
918 | } | |
919 | ||
920 | static int | |
921 | TMCRR (ARMul_State * state, ARMword instr) | |
922 | { | |
923 | ARMdword RdHi = state->Reg [BITS (16, 19)]; | |
924 | ARMword RdLo = state->Reg [BITS (12, 15)]; | |
925 | ||
926 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
927 | return ARMul_CANT; | |
928 | ||
929 | #ifdef DEBUG | |
930 | fprintf (stderr, "tmcrr\n"); | |
931 | #endif | |
932 | ||
933 | if ((BITS (16, 19) == 15) || (BITS (12, 15) == 15)) | |
934 | return ARMul_CANT; | |
935 | ||
936 | wR [BITS (0, 3)] = (RdHi << 32) | RdLo; | |
937 | ||
938 | wC [wCon] |= WCON_MUP; | |
939 | ||
940 | return ARMul_DONE; | |
941 | } | |
942 | ||
943 | static int | |
944 | TMIA (ARMul_State * state, ARMword instr) | |
945 | { | |
946 | signed long long a, b; | |
947 | ||
948 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
949 | return ARMul_CANT; | |
950 | ||
951 | #ifdef DEBUG | |
952 | fprintf (stderr, "tmia\n"); | |
953 | #endif | |
954 | ||
955 | if ((BITS (0, 3) == 15) || (BITS (12, 15) == 15)) | |
956 | { | |
957 | ARMul_UndefInstr (state, instr); | |
958 | return ARMul_DONE; | |
959 | } | |
960 | ||
961 | a = state->Reg [BITS (0, 3)]; | |
962 | b = state->Reg [BITS (12, 15)]; | |
963 | ||
964 | a = EXTEND32 (a); | |
965 | b = EXTEND32 (b); | |
966 | ||
967 | wR [BITS (5, 8)] += a * b; | |
968 | wC [wCon] |= WCON_MUP; | |
969 | ||
970 | return ARMul_DONE; | |
971 | } | |
972 | ||
973 | static int | |
974 | TMIAPH (ARMul_State * state, ARMword instr) | |
975 | { | |
976 | signed long a, b, result; | |
977 | signed long long r; | |
978 | ARMword Rm = state->Reg [BITS (0, 3)]; | |
979 | ARMword Rs = state->Reg [BITS (12, 15)]; | |
980 | ||
981 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
982 | return ARMul_CANT; | |
983 | ||
984 | #ifdef DEBUG | |
985 | fprintf (stderr, "tmiaph\n"); | |
986 | #endif | |
987 | ||
988 | if (BITS (0, 3) == 15 || BITS (12, 15) == 15) | |
989 | { | |
990 | ARMul_UndefInstr (state, instr); | |
991 | return ARMul_DONE; | |
992 | } | |
993 | ||
994 | a = SUBSTR (Rs, ARMword, 16, 31); | |
995 | b = SUBSTR (Rm, ARMword, 16, 31); | |
996 | ||
997 | a = EXTEND16 (a); | |
998 | b = EXTEND16 (b); | |
999 | ||
1000 | result = a * b; | |
1001 | ||
1002 | r = result; | |
1003 | r = EXTEND32 (r); | |
1004 | ||
1005 | wR [BITS (5, 8)] += r; | |
1006 | ||
1007 | a = SUBSTR (Rs, ARMword, 0, 15); | |
1008 | b = SUBSTR (Rm, ARMword, 0, 15); | |
1009 | ||
1010 | a = EXTEND16 (a); | |
1011 | b = EXTEND16 (b); | |
1012 | ||
1013 | result = a * b; | |
1014 | ||
1015 | r = result; | |
1016 | r = EXTEND32 (r); | |
1017 | ||
1018 | wR [BITS (5, 8)] += r; | |
1019 | wC [wCon] |= WCON_MUP; | |
1020 | ||
1021 | return ARMul_DONE; | |
1022 | } | |
1023 | ||
1024 | static int | |
1025 | TMIAxy (ARMul_State * state, ARMword instr) | |
1026 | { | |
1027 | ARMword Rm; | |
1028 | ARMword Rs; | |
1029 | long long temp; | |
1030 | ||
1031 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
1032 | return ARMul_CANT; | |
1033 | ||
1034 | #ifdef DEBUG | |
1035 | fprintf (stderr, "tmiaxy\n"); | |
1036 | #endif | |
1037 | ||
1038 | if (BITS (0, 3) == 15 || BITS (12, 15) == 15) | |
1039 | { | |
1040 | ARMul_UndefInstr (state, instr); | |
1041 | return ARMul_DONE; | |
1042 | } | |
1043 | ||
1044 | Rm = state->Reg [BITS (0, 3)]; | |
1045 | if (BIT (17)) | |
1046 | Rm >>= 16; | |
1047 | else | |
1048 | Rm &= 0xffff; | |
1049 | ||
1050 | Rs = state->Reg [BITS (12, 15)]; | |
1051 | if (BIT (16)) | |
1052 | Rs >>= 16; | |
1053 | else | |
1054 | Rs &= 0xffff; | |
1055 | ||
1056 | if (Rm & (1 << 15)) | |
1057 | Rm -= 1 << 16; | |
1058 | ||
1059 | if (Rs & (1 << 15)) | |
1060 | Rs -= 1 << 16; | |
1061 | ||
1062 | Rm *= Rs; | |
1063 | temp = Rm; | |
1064 | ||
1065 | if (temp & (1 << 31)) | |
1066 | temp -= 1ULL << 32; | |
1067 | ||
1068 | wR [BITS (5, 8)] += temp; | |
1069 | wC [wCon] |= WCON_MUP; | |
1070 | ||
1071 | return ARMul_DONE; | |
1072 | } | |
1073 | ||
1074 | static int | |
1075 | TMOVMSK (ARMul_State * state, ARMword instr) | |
1076 | { | |
1077 | ARMdword result; | |
1078 | int wRn; | |
1079 | ||
1080 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
1081 | return ARMul_CANT; | |
1082 | ||
1083 | #ifdef DEBUG | |
1084 | fprintf (stderr, "tmovmsk\n"); | |
1085 | #endif | |
1086 | ||
1087 | /* The CRm field must be r0. */ | |
1088 | if (BITS (0, 3) != 0) | |
1089 | return ARMul_CANT; | |
1090 | ||
1091 | wRn = BITS (16, 19); | |
1092 | ||
1093 | switch (BITS (22, 23)) | |
1094 | { | |
1095 | case Bqual: | |
1096 | result = ( (wRBITS (wRn, 63, 63) << 7) | |
1097 | | (wRBITS (wRn, 55, 55) << 6) | |
1098 | | (wRBITS (wRn, 47, 47) << 5) | |
1099 | | (wRBITS (wRn, 39, 39) << 4) | |
1100 | | (wRBITS (wRn, 31, 31) << 3) | |
1101 | | (wRBITS (wRn, 23, 23) << 2) | |
1102 | | (wRBITS (wRn, 15, 15) << 1) | |
1103 | | (wRBITS (wRn, 7, 7) << 0)); | |
1104 | break; | |
1105 | ||
1106 | case Hqual: | |
1107 | result = ( (wRBITS (wRn, 63, 63) << 3) | |
1108 | | (wRBITS (wRn, 47, 47) << 2) | |
1109 | | (wRBITS (wRn, 31, 31) << 1) | |
1110 | | (wRBITS (wRn, 15, 15) << 0)); | |
1111 | break; | |
1112 | ||
1113 | case Wqual: | |
1114 | result = (wRBITS (wRn, 63, 63) << 1) | wRBITS (wRn, 31, 31); | |
1115 | break; | |
1116 | ||
1117 | default: | |
1118 | ARMul_UndefInstr (state, instr); | |
1119 | return ARMul_DONE; | |
1120 | } | |
1121 | ||
1122 | state->Reg [BITS (12, 15)] = result; | |
1123 | ||
1124 | return ARMul_DONE; | |
1125 | } | |
1126 | ||
1127 | static int | |
1128 | TMRC (ARMul_State * state, ARMword instr) | |
1129 | { | |
1130 | int reg = BITS (12, 15); | |
1131 | ||
1132 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
1133 | return ARMul_CANT; | |
1134 | ||
1135 | #ifdef DEBUG | |
1136 | fprintf (stderr, "tmrc\n"); | |
1137 | #endif | |
1138 | ||
1139 | if (BITS (0, 3) != 0) | |
1140 | return ARMul_CANT; | |
1141 | ||
1142 | if (reg == 15) | |
1143 | ARMul_UndefInstr (state, instr); | |
1144 | else | |
1145 | state->Reg [reg] = wC [BITS (16, 19)]; | |
1146 | ||
1147 | return ARMul_DONE; | |
1148 | } | |
1149 | ||
1150 | static int | |
1151 | TMRRC (ARMul_State * state, ARMword instr) | |
1152 | { | |
1153 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
1154 | return ARMul_CANT; | |
1155 | ||
1156 | #ifdef DEBUG | |
1157 | fprintf (stderr, "tmrrc\n"); | |
1158 | #endif | |
1159 | ||
1160 | if ((BITS (16, 19) == 15) || (BITS (12, 15) == 15) || (BITS (4, 11) != 0)) | |
1161 | ARMul_UndefInstr (state, instr); | |
1162 | else | |
1163 | { | |
1164 | state->Reg [BITS (16, 19)] = wRBITS (BITS (0, 3), 32, 63); | |
1165 | state->Reg [BITS (12, 15)] = wRBITS (BITS (0, 3), 0, 31); | |
1166 | } | |
1167 | ||
1168 | return ARMul_DONE; | |
1169 | } | |
1170 | ||
1171 | static int | |
1172 | TORC (ARMul_State * state, ARMword instr) | |
1173 | { | |
1174 | ARMword cpsr = ARMul_GetCPSR (state); | |
1175 | ||
1176 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
1177 | return ARMul_CANT; | |
1178 | ||
1179 | #ifdef DEBUG | |
1180 | fprintf (stderr, "torc\n"); | |
1181 | #endif | |
1182 | ||
1183 | /* The Rd field must be r15. */ | |
1184 | if (BITS (12, 15) != 15) | |
1185 | return ARMul_CANT; | |
1186 | ||
1187 | /* The CRn field must be r3. */ | |
1188 | if (BITS (16, 19) != 3) | |
1189 | return ARMul_CANT; | |
1190 | ||
1191 | /* The CRm field must be r0. */ | |
1192 | if (BITS (0, 3) != 0) | |
1193 | return ARMul_CANT; | |
1194 | ||
1195 | cpsr &= 0x0fffffff; | |
1196 | ||
1197 | switch (BITS (22, 23)) | |
1198 | { | |
1199 | case Bqual: | |
1200 | cpsr |= ( (wCBITS (wCASF, 28, 31) | wCBITS (wCASF, 24, 27) | |
1201 | | wCBITS (wCASF, 20, 23) | wCBITS (wCASF, 16, 19) | |
1202 | | wCBITS (wCASF, 12, 15) | wCBITS (wCASF, 8, 11) | |
1203 | | wCBITS (wCASF, 4, 7) | wCBITS (wCASF, 0, 3)) << 28); | |
1204 | break; | |
1205 | ||
1206 | case Hqual: | |
1207 | cpsr |= ( (wCBITS (wCASF, 28, 31) | wCBITS (wCASF, 20, 23) | |
1208 | | wCBITS (wCASF, 12, 15) | wCBITS (wCASF, 4, 7)) << 28); | |
1209 | break; | |
1210 | ||
1211 | case Wqual: | |
1212 | cpsr |= ((wCBITS (wCASF, 28, 31) | wCBITS (wCASF, 12, 15)) << 28); | |
1213 | break; | |
1214 | ||
1215 | default: | |
1216 | ARMul_UndefInstr (state, instr); | |
1217 | return ARMul_DONE; | |
1218 | } | |
1219 | ||
1220 | ARMul_SetCPSR (state, cpsr); | |
1221 | ||
1222 | return ARMul_DONE; | |
1223 | } | |
1224 | ||
1225 | static int | |
1226 | WACC (ARMul_State * state, ARMword instr) | |
1227 | { | |
1228 | int wRn; | |
1229 | ||
1230 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
1231 | return ARMul_CANT; | |
1232 | ||
1233 | #ifdef DEBUG | |
1234 | fprintf (stderr, "wacc\n"); | |
1235 | #endif | |
1236 | ||
1237 | wRn = BITS (16, 19); | |
1238 | ||
1239 | switch (BITS (22, 23)) | |
1240 | { | |
1241 | case Bqual: | |
1242 | wR [BITS (12, 15)] = | |
1243 | wRBITS (wRn, 56, 63) + wRBITS (wRn, 48, 55) | |
1244 | + wRBITS (wRn, 40, 47) + wRBITS (wRn, 32, 39) | |
1245 | + wRBITS (wRn, 24, 31) + wRBITS (wRn, 16, 23) | |
1246 | + wRBITS (wRn, 8, 15) + wRBITS (wRn, 0, 7); | |
1247 | break; | |
1248 | ||
1249 | case Hqual: | |
1250 | wR [BITS (12, 15)] = | |
1251 | wRBITS (wRn, 48, 63) + wRBITS (wRn, 32, 47) | |
1252 | + wRBITS (wRn, 16, 31) + wRBITS (wRn, 0, 15); | |
1253 | break; | |
1254 | ||
1255 | case Wqual: | |
1256 | wR [BITS (12, 15)] = wRBITS (wRn, 32, 63) + wRBITS (wRn, 0, 31); | |
1257 | break; | |
1258 | ||
1259 | default: | |
1260 | ARMul_UndefInstr (state, instr); | |
1261 | break; | |
1262 | } | |
1263 | ||
1264 | wC [wCon] |= WCON_MUP; | |
1265 | return ARMul_DONE; | |
1266 | } | |
1267 | ||
1268 | static int | |
1269 | WADD (ARMul_State * state, ARMword instr) | |
1270 | { | |
1271 | ARMdword r = 0; | |
1272 | ARMdword x; | |
1273 | ARMdword s; | |
1274 | ARMword psr = 0; | |
1275 | int i; | |
1276 | int carry; | |
1277 | int overflow; | |
1278 | int satrv[8]; | |
1279 | ||
1280 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
1281 | return ARMul_CANT; | |
1282 | ||
1283 | #ifdef DEBUG | |
1284 | fprintf (stderr, "wadd\n"); | |
1285 | #endif | |
1286 | ||
1287 | /* Add two numbers using the specified function, | |
1288 | leaving setting the carry bit as required. */ | |
1289 | #define ADDx(x, y, m, f) \ | |
1290 | (*f) (wRBITS (BITS (16, 19), (x), (y)) & (m), \ | |
1291 | wRBITS (BITS ( 0, 3), (x), (y)) & (m), \ | |
1292 | & carry, & overflow) | |
1293 | ||
1294 | switch (BITS (22, 23)) | |
1295 | { | |
1296 | case Bqual: | |
1297 | for (i = 0; i < 8; i++) | |
1298 | { | |
1299 | switch (BITS (20, 21)) | |
1300 | { | |
1301 | case NoSaturation: | |
1302 | s = ADDx ((i * 8), (i * 8) + 7, 0xff, AddS8); | |
1303 | satrv [BITIDX8 (i)] = 0; | |
1304 | r |= (s & 0xff) << (i * 8); | |
1305 | SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i); | |
1306 | SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i); | |
1307 | SIMD8_SET (psr, carry, SIMD_CBIT, i); | |
1308 | SIMD8_SET (psr, overflow, SIMD_VBIT, i); | |
1309 | break; | |
1310 | ||
1311 | case UnsignedSaturation: | |
1312 | s = ADDx ((i * 8), (i * 8) + 7, 0xff, AddU8); | |
1313 | x = IwmmxtSaturateU8 (s, satrv + BITIDX8 (i)); | |
1314 | r |= (x & 0xff) << (i * 8); | |
1315 | SIMD8_SET (psr, NBIT8 (x), SIMD_NBIT, i); | |
1316 | SIMD8_SET (psr, ZBIT8 (x), SIMD_ZBIT, i); | |
1317 | if (! satrv [BITIDX8 (i)]) | |
1318 | { | |
1319 | SIMD8_SET (psr, carry, SIMD_CBIT, i); | |
1320 | SIMD8_SET (psr, overflow, SIMD_VBIT, i); | |
1321 | } | |
1322 | break; | |
1323 | ||
1324 | case SignedSaturation: | |
1325 | s = ADDx ((i * 8), (i * 8) + 7, 0xff, AddS8); | |
1326 | x = IwmmxtSaturateS8 (s, satrv + BITIDX8 (i)); | |
1327 | r |= (x & 0xff) << (i * 8); | |
1328 | SIMD8_SET (psr, NBIT8 (x), SIMD_NBIT, i); | |
1329 | SIMD8_SET (psr, ZBIT8 (x), SIMD_ZBIT, i); | |
1330 | if (! satrv [BITIDX8 (i)]) | |
1331 | { | |
1332 | SIMD8_SET (psr, carry, SIMD_CBIT, i); | |
1333 | SIMD8_SET (psr, overflow, SIMD_VBIT, i); | |
1334 | } | |
1335 | break; | |
1336 | ||
1337 | default: | |
1338 | ARMul_UndefInstr (state, instr); | |
1339 | return ARMul_DONE; | |
1340 | } | |
1341 | } | |
1342 | break; | |
1343 | ||
1344 | case Hqual: | |
1345 | satrv[0] = satrv[2] = satrv[4] = satrv[6] = 0; | |
1346 | ||
1347 | for (i = 0; i < 4; i++) | |
1348 | { | |
1349 | switch (BITS (20, 21)) | |
1350 | { | |
1351 | case NoSaturation: | |
1352 | s = ADDx ((i * 16), (i * 16) + 15, 0xffff, AddS16); | |
1353 | satrv [BITIDX16 (i)] = 0; | |
1354 | r |= (s & 0xffff) << (i * 16); | |
1355 | SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i); | |
1356 | SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i); | |
1357 | SIMD16_SET (psr, carry, SIMD_CBIT, i); | |
1358 | SIMD16_SET (psr, overflow, SIMD_VBIT, i); | |
1359 | break; | |
1360 | ||
1361 | case UnsignedSaturation: | |
1362 | s = ADDx ((i * 16), (i * 16) + 15, 0xffff, AddU16); | |
1363 | x = IwmmxtSaturateU16 (s, satrv + BITIDX16 (i)); | |
1364 | r |= (x & 0xffff) << (i * 16); | |
1365 | SIMD16_SET (psr, NBIT16 (x), SIMD_NBIT, i); | |
1366 | SIMD16_SET (psr, ZBIT16 (x), SIMD_ZBIT, i); | |
1367 | if (! satrv [BITIDX16 (i)]) | |
1368 | { | |
1369 | SIMD16_SET (psr, carry, SIMD_CBIT, i); | |
1370 | SIMD16_SET (psr, overflow, SIMD_VBIT, i); | |
1371 | } | |
1372 | break; | |
1373 | ||
1374 | case SignedSaturation: | |
1375 | s = ADDx ((i * 16), (i * 16) + 15, 0xffff, AddS16); | |
1376 | x = IwmmxtSaturateS16 (s, satrv + BITIDX16 (i)); | |
1377 | r |= (x & 0xffff) << (i * 16); | |
1378 | SIMD16_SET (psr, NBIT16 (x), SIMD_NBIT, i); | |
1379 | SIMD16_SET (psr, ZBIT16 (x), SIMD_ZBIT, i); | |
1380 | if (! satrv [BITIDX16 (i)]) | |
1381 | { | |
1382 | SIMD16_SET (psr, carry, SIMD_CBIT, i); | |
1383 | SIMD16_SET (psr, overflow, SIMD_VBIT, i); | |
1384 | } | |
1385 | break; | |
1386 | ||
1387 | default: | |
1388 | ARMul_UndefInstr (state, instr); | |
1389 | return ARMul_DONE; | |
1390 | } | |
1391 | } | |
1392 | break; | |
1393 | ||
1394 | case Wqual: | |
1395 | satrv[0] = satrv[1] = satrv[2] = satrv[4] = satrv[5] = satrv[6] = 0; | |
1396 | ||
1397 | for (i = 0; i < 2; i++) | |
1398 | { | |
1399 | switch (BITS (20, 21)) | |
1400 | { | |
1401 | case NoSaturation: | |
1402 | s = ADDx ((i * 32), (i * 32) + 31, 0xffffffff, AddS32); | |
1403 | satrv [BITIDX32 (i)] = 0; | |
1404 | r |= (s & 0xffffffff) << (i * 32); | |
1405 | SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i); | |
1406 | SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i); | |
1407 | SIMD32_SET (psr, carry, SIMD_CBIT, i); | |
1408 | SIMD32_SET (psr, overflow, SIMD_VBIT, i); | |
1409 | break; | |
1410 | ||
1411 | case UnsignedSaturation: | |
1412 | s = ADDx ((i * 32), (i * 32) + 31, 0xffffffff, AddU32); | |
1413 | x = IwmmxtSaturateU32 (s, satrv + BITIDX32 (i)); | |
1414 | r |= (x & 0xffffffff) << (i * 32); | |
1415 | SIMD32_SET (psr, NBIT32 (x), SIMD_NBIT, i); | |
1416 | SIMD32_SET (psr, ZBIT32 (x), SIMD_ZBIT, i); | |
1417 | if (! satrv [BITIDX32 (i)]) | |
1418 | { | |
1419 | SIMD32_SET (psr, carry, SIMD_CBIT, i); | |
1420 | SIMD32_SET (psr, overflow, SIMD_VBIT, i); | |
1421 | } | |
1422 | break; | |
1423 | ||
1424 | case SignedSaturation: | |
1425 | s = ADDx ((i * 32), (i * 32) + 31, 0xffffffff, AddS32); | |
1426 | x = IwmmxtSaturateS32 (s, satrv + BITIDX32 (i)); | |
1427 | r |= (x & 0xffffffff) << (i * 32); | |
1428 | SIMD32_SET (psr, NBIT32 (x), SIMD_NBIT, i); | |
1429 | SIMD32_SET (psr, ZBIT32 (x), SIMD_ZBIT, i); | |
1430 | if (! satrv [BITIDX32 (i)]) | |
1431 | { | |
1432 | SIMD32_SET (psr, carry, SIMD_CBIT, i); | |
1433 | SIMD32_SET (psr, overflow, SIMD_VBIT, i); | |
1434 | } | |
1435 | break; | |
1436 | ||
1437 | default: | |
1438 | ARMul_UndefInstr (state, instr); | |
1439 | return ARMul_DONE; | |
1440 | } | |
1441 | } | |
1442 | break; | |
1443 | ||
1444 | default: | |
1445 | ARMul_UndefInstr (state, instr); | |
1446 | return ARMul_DONE; | |
1447 | } | |
1448 | ||
1449 | wC [wCASF] = psr; | |
1450 | wR [BITS (12, 15)] = r; | |
1451 | wC [wCon] |= (WCON_MUP | WCON_CUP); | |
1452 | ||
1453 | SET_wCSSFvec (satrv); | |
1454 | ||
1455 | #undef ADDx | |
1456 | ||
1457 | return ARMul_DONE; | |
1458 | } | |
1459 | ||
1460 | static int | |
1461 | WALIGNI (ARMword instr) | |
1462 | { | |
1463 | int shift = BITS (20, 22) * 8; | |
1464 | ||
1465 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
1466 | return ARMul_CANT; | |
1467 | ||
1468 | #ifdef DEBUG | |
1469 | fprintf (stderr, "waligni\n"); | |
1470 | #endif | |
1471 | ||
1472 | if (shift) | |
1473 | wR [BITS (12, 15)] = | |
1474 | wRBITS (BITS (16, 19), shift, 63) | |
1475 | | (wRBITS (BITS (0, 3), 0, shift) << ((64 - shift))); | |
1476 | else | |
1477 | wR [BITS (12, 15)] = wR [BITS (16, 19)]; | |
1478 | ||
1479 | wC [wCon] |= WCON_MUP; | |
1480 | return ARMul_DONE; | |
1481 | } | |
1482 | ||
1483 | static int | |
1484 | WALIGNR (ARMul_State * state, ARMword instr) | |
1485 | { | |
1486 | int shift = (wC [BITS (20, 21) + 8] & 0x7) * 8; | |
1487 | ||
1488 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
1489 | return ARMul_CANT; | |
1490 | ||
1491 | #ifdef DEBUG | |
1492 | fprintf (stderr, "walignr\n"); | |
1493 | #endif | |
1494 | ||
1495 | if (shift) | |
1496 | wR [BITS (12, 15)] = | |
1497 | wRBITS (BITS (16, 19), shift, 63) | |
1498 | | (wRBITS (BITS (0, 3), 0, shift) << ((64 - shift))); | |
1499 | else | |
1500 | wR [BITS (12, 15)] = wR [BITS (16, 19)]; | |
1501 | ||
1502 | wC [wCon] |= WCON_MUP; | |
1503 | return ARMul_DONE; | |
1504 | } | |
1505 | ||
1506 | static int | |
1507 | WAND (ARMword instr) | |
1508 | { | |
1509 | ARMdword result; | |
1510 | ARMword psr = 0; | |
1511 | ||
1512 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
1513 | return ARMul_CANT; | |
1514 | ||
1515 | #ifdef DEBUG | |
1516 | fprintf (stderr, "wand\n"); | |
1517 | #endif | |
1518 | ||
1519 | result = wR [BITS (16, 19)] & wR [BITS (0, 3)]; | |
1520 | wR [BITS (12, 15)] = result; | |
1521 | ||
1522 | SIMD64_SET (psr, (result == 0), SIMD_ZBIT); | |
1523 | SIMD64_SET (psr, (result & (1ULL << 63)), SIMD_NBIT); | |
1524 | ||
1525 | wC [wCASF] = psr; | |
1526 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
1527 | ||
1528 | return ARMul_DONE; | |
1529 | } | |
1530 | ||
1531 | static int | |
1532 | WANDN (ARMword instr) | |
1533 | { | |
1534 | ARMdword result; | |
1535 | ARMword psr = 0; | |
1536 | ||
1537 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
1538 | return ARMul_CANT; | |
1539 | ||
1540 | #ifdef DEBUG | |
1541 | fprintf (stderr, "wandn\n"); | |
1542 | #endif | |
1543 | ||
1544 | result = wR [BITS (16, 19)] & ~ wR [BITS (0, 3)]; | |
1545 | wR [BITS (12, 15)] = result; | |
1546 | ||
1547 | SIMD64_SET (psr, (result == 0), SIMD_ZBIT); | |
1548 | SIMD64_SET (psr, (result & (1ULL << 63)), SIMD_NBIT); | |
1549 | ||
1550 | wC [wCASF] = psr; | |
1551 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
1552 | ||
1553 | return ARMul_DONE; | |
1554 | } | |
1555 | ||
1556 | static int | |
1557 | WAVG2 (ARMword instr) | |
1558 | { | |
1559 | ARMdword r = 0; | |
1560 | ARMword psr = 0; | |
1561 | ARMdword s; | |
1562 | int i; | |
1563 | int round = BIT (20) ? 1 : 0; | |
1564 | ||
1565 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
1566 | return ARMul_CANT; | |
1567 | ||
1568 | #ifdef DEBUG | |
1569 | fprintf (stderr, "wavg2\n"); | |
1570 | #endif | |
1571 | ||
1572 | #define AVG2x(x, y, m) (((wRBITS (BITS (16, 19), (x), (y)) & (m)) \ | |
1573 | + (wRBITS (BITS ( 0, 3), (x), (y)) & (m)) \ | |
1574 | + round) / 2) | |
1575 | ||
1576 | if (BIT (22)) | |
1577 | { | |
1578 | for (i = 0; i < 4; i++) | |
1579 | { | |
1580 | s = AVG2x ((i * 16), (i * 16) + 15, 0xffff) & 0xffff; | |
1581 | SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i); | |
1582 | r |= s << (i * 16); | |
1583 | } | |
1584 | } | |
1585 | else | |
1586 | { | |
1587 | for (i = 0; i < 8; i++) | |
1588 | { | |
1589 | s = AVG2x ((i * 8), (i * 8) + 7, 0xff) & 0xff; | |
1590 | SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i); | |
1591 | r |= s << (i * 8); | |
1592 | } | |
1593 | } | |
1594 | ||
1595 | wR [BITS (12, 15)] = r; | |
1596 | wC [wCASF] = psr; | |
1597 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
1598 | ||
1599 | return ARMul_DONE; | |
1600 | } | |
1601 | ||
1602 | static int | |
1603 | WCMPEQ (ARMul_State * state, ARMword instr) | |
1604 | { | |
1605 | ARMdword r = 0; | |
1606 | ARMword psr = 0; | |
1607 | ARMdword s; | |
1608 | int i; | |
1609 | ||
1610 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
1611 | return ARMul_CANT; | |
1612 | ||
1613 | #ifdef DEBUG | |
1614 | fprintf (stderr, "wcmpeq\n"); | |
1615 | #endif | |
1616 | ||
1617 | switch (BITS (22, 23)) | |
1618 | { | |
1619 | case Bqual: | |
1620 | for (i = 0; i < 8; i++) | |
1621 | { | |
1622 | s = wRBYTE (BITS (16, 19), i) == wRBYTE (BITS (0, 3), i) ? 0xff : 0; | |
1623 | r |= s << (i * 8); | |
1624 | SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i); | |
1625 | SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i); | |
1626 | } | |
1627 | break; | |
1628 | ||
1629 | case Hqual: | |
1630 | for (i = 0; i < 4; i++) | |
1631 | { | |
1632 | s = wRHALF (BITS (16, 19), i) == wRHALF (BITS (0, 3), i) ? 0xffff : 0; | |
1633 | r |= s << (i * 16); | |
1634 | SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i); | |
1635 | SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i); | |
1636 | } | |
1637 | break; | |
1638 | ||
1639 | case Wqual: | |
1640 | for (i = 0; i < 2; i++) | |
1641 | { | |
1642 | s = wRWORD (BITS (16, 19), i) == wRWORD (BITS (0, 3), i) ? 0xffffffff : 0; | |
1643 | r |= s << (i * 32); | |
1644 | SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i); | |
1645 | SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i); | |
1646 | } | |
1647 | break; | |
1648 | ||
1649 | default: | |
1650 | ARMul_UndefInstr (state, instr); | |
1651 | return ARMul_DONE; | |
1652 | } | |
1653 | ||
1654 | wC [wCASF] = psr; | |
1655 | wR [BITS (12, 15)] = r; | |
1656 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
1657 | ||
1658 | return ARMul_DONE; | |
1659 | } | |
1660 | ||
1661 | static int | |
1662 | WCMPGT (ARMul_State * state, ARMword instr) | |
1663 | { | |
1664 | ARMdword r = 0; | |
1665 | ARMword psr = 0; | |
1666 | ARMdword s; | |
1667 | int i; | |
1668 | ||
1669 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
1670 | return ARMul_CANT; | |
1671 | ||
1672 | #ifdef DEBUG | |
1673 | fprintf (stderr, "wcmpgt\n"); | |
1674 | #endif | |
1675 | ||
1676 | switch (BITS (22, 23)) | |
1677 | { | |
1678 | case Bqual: | |
1679 | if (BIT (21)) | |
1680 | { | |
1681 | /* Use a signed comparison. */ | |
1682 | for (i = 0; i < 8; i++) | |
1683 | { | |
1684 | signed char a, b; | |
1685 | ||
1686 | a = wRBYTE (BITS (16, 19), i); | |
1687 | b = wRBYTE (BITS (0, 3), i); | |
1688 | ||
1689 | s = (a > b) ? 0xff : 0; | |
1690 | r |= s << (i * 8); | |
1691 | SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i); | |
1692 | SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i); | |
1693 | } | |
1694 | } | |
1695 | else | |
1696 | { | |
1697 | for (i = 0; i < 8; i++) | |
1698 | { | |
1699 | s = (wRBYTE (BITS (16, 19), i) > wRBYTE (BITS (0, 3), i)) | |
1700 | ? 0xff : 0; | |
1701 | r |= s << (i * 8); | |
1702 | SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i); | |
1703 | SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i); | |
1704 | } | |
1705 | } | |
1706 | break; | |
1707 | ||
1708 | case Hqual: | |
1709 | if (BIT (21)) | |
1710 | { | |
1711 | for (i = 0; i < 4; i++) | |
1712 | { | |
1713 | signed int a, b; | |
1714 | ||
1715 | a = wRHALF (BITS (16, 19), i); | |
1716 | a = EXTEND16 (a); | |
1717 | ||
1718 | b = wRHALF (BITS (0, 3), i); | |
1719 | b = EXTEND16 (b); | |
1720 | ||
1721 | s = (a > b) ? 0xffff : 0; | |
1722 | r |= s << (i * 16); | |
1723 | SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i); | |
1724 | SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i); | |
1725 | } | |
1726 | } | |
1727 | else | |
1728 | { | |
1729 | for (i = 0; i < 4; i++) | |
1730 | { | |
1731 | s = (wRHALF (BITS (16, 19), i) > wRHALF (BITS (0, 3), i)) | |
1732 | ? 0xffff : 0; | |
1733 | r |= s << (i * 16); | |
1734 | SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i); | |
1735 | SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i); | |
1736 | } | |
1737 | } | |
1738 | break; | |
1739 | ||
1740 | case Wqual: | |
1741 | if (BIT (21)) | |
1742 | { | |
1743 | for (i = 0; i < 2; i++) | |
1744 | { | |
1745 | signed long a, b; | |
1746 | ||
1747 | a = wRWORD (BITS (16, 19), i); | |
1748 | b = wRWORD (BITS (0, 3), i); | |
1749 | ||
1750 | s = (a > b) ? 0xffffffff : 0; | |
1751 | r |= s << (i * 32); | |
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 | ||
16d55f14 | 2119 | t = t + (ARMdword) s; |
0f026fd0 NC |
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 (20)) | |
2132 | wR [BITS (12, 15)] = 0; | |
2133 | ||
2134 | if (BIT (21)) /* Signed. */ | |
16d55f14 | 2135 | wR[BITS (12, 15)] += t; |
0f026fd0 NC |
2136 | else |
2137 | wR [BITS (12, 15)] += t; | |
2138 | ||
2139 | wC [wCon] |= WCON_MUP; | |
2140 | ||
2141 | return ARMul_DONE; | |
2142 | } | |
2143 | ||
2144 | static int | |
2145 | WMADD (ARMword instr) | |
2146 | { | |
2147 | ARMdword r = 0; | |
2148 | int i; | |
2149 | ||
2150 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
2151 | return ARMul_CANT; | |
2152 | ||
2153 | #ifdef DEBUG | |
2154 | fprintf (stderr, "wmadd\n"); | |
2155 | #endif | |
2156 | ||
2157 | for (i = 0; i < 2; i++) | |
2158 | { | |
2159 | ARMdword s1, s2; | |
2160 | ||
2161 | if (BIT (21)) /* Signed. */ | |
2162 | { | |
2163 | signed long a, b; | |
2164 | ||
2165 | a = wRHALF (BITS (16, 19), i * 2); | |
2166 | a = EXTEND16 (a); | |
2167 | ||
2168 | b = wRHALF (BITS (0, 3), i * 2); | |
2169 | b = EXTEND16 (b); | |
2170 | ||
16d55f14 | 2171 | s1 = (ARMdword) (a * b); |
0f026fd0 NC |
2172 | |
2173 | a = wRHALF (BITS (16, 19), i * 2 + 1); | |
2174 | a = EXTEND16 (a); | |
2175 | ||
2176 | b = wRHALF (BITS (0, 3), i * 2 + 1); | |
2177 | b = EXTEND16 (b); | |
2178 | ||
16d55f14 | 2179 | s2 = (ARMdword) (a * b); |
0f026fd0 NC |
2180 | } |
2181 | else /* Unsigned. */ | |
2182 | { | |
2183 | unsigned long a, b; | |
2184 | ||
2185 | a = wRHALF (BITS (16, 19), i * 2); | |
2186 | b = wRHALF (BITS ( 0, 3), i * 2); | |
2187 | ||
16d55f14 | 2188 | s1 = (ARMdword) (a * b); |
0f026fd0 NC |
2189 | |
2190 | a = wRHALF (BITS (16, 19), i * 2 + 1); | |
2191 | b = wRHALF (BITS ( 0, 3), i * 2 + 1); | |
2192 | ||
16d55f14 | 2193 | s2 = (ARMdword) a * b; |
0f026fd0 NC |
2194 | } |
2195 | ||
2196 | r |= (ARMdword) ((s1 + s2) & 0xffffffff) << (i ? 32 : 0); | |
2197 | } | |
2198 | ||
2199 | wR [BITS (12, 15)] = r; | |
2200 | wC [wCon] |= WCON_MUP; | |
2201 | ||
2202 | return ARMul_DONE; | |
2203 | } | |
2204 | ||
2205 | static int | |
2206 | WMAX (ARMul_State * state, ARMword instr) | |
2207 | { | |
2208 | ARMdword r = 0; | |
2209 | ARMdword s; | |
2210 | int i; | |
2211 | ||
2212 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
2213 | return ARMul_CANT; | |
2214 | ||
2215 | #ifdef DEBUG | |
2216 | fprintf (stderr, "wmax\n"); | |
2217 | #endif | |
2218 | ||
2219 | switch (BITS (22, 23)) | |
2220 | { | |
2221 | case Bqual: | |
2222 | for (i = 0; i < 8; i++) | |
2223 | if (BIT (21)) /* Signed. */ | |
2224 | { | |
2225 | int a, b; | |
2226 | ||
2227 | a = wRBYTE (BITS (16, 19), i); | |
2228 | a = EXTEND8 (a); | |
2229 | ||
2230 | b = wRBYTE (BITS (0, 3), i); | |
2231 | b = EXTEND8 (b); | |
2232 | ||
2233 | if (a > b) | |
2234 | s = a; | |
2235 | else | |
2236 | s = b; | |
2237 | ||
2238 | r |= (s & 0xff) << (i * 8); | |
2239 | } | |
2240 | else /* Unsigned. */ | |
2241 | { | |
2242 | unsigned int a, b; | |
2243 | ||
2244 | a = wRBYTE (BITS (16, 19), i); | |
2245 | b = wRBYTE (BITS (0, 3), i); | |
2246 | ||
2247 | if (a > b) | |
2248 | s = a; | |
2249 | else | |
2250 | s = b; | |
2251 | ||
2252 | r |= (s & 0xff) << (i * 8); | |
2253 | } | |
2254 | break; | |
2255 | ||
2256 | case Hqual: | |
2257 | for (i = 0; i < 4; i++) | |
2258 | if (BIT (21)) /* Signed. */ | |
2259 | { | |
2260 | int a, b; | |
2261 | ||
2262 | a = wRHALF (BITS (16, 19), i); | |
2263 | a = EXTEND16 (a); | |
2264 | ||
2265 | b = wRHALF (BITS (0, 3), i); | |
2266 | b = EXTEND16 (b); | |
2267 | ||
2268 | if (a > b) | |
2269 | s = a; | |
2270 | else | |
2271 | s = b; | |
2272 | ||
2273 | r |= (s & 0xffff) << (i * 16); | |
2274 | } | |
2275 | else /* Unsigned. */ | |
2276 | { | |
2277 | unsigned int a, b; | |
2278 | ||
2279 | a = wRHALF (BITS (16, 19), i); | |
2280 | b = wRHALF (BITS (0, 3), i); | |
2281 | ||
2282 | if (a > b) | |
2283 | s = a; | |
2284 | else | |
2285 | s = b; | |
2286 | ||
2287 | r |= (s & 0xffff) << (i * 16); | |
2288 | } | |
2289 | break; | |
2290 | ||
2291 | case Wqual: | |
2292 | for (i = 0; i < 2; i++) | |
2293 | if (BIT (21)) /* Signed. */ | |
2294 | { | |
2295 | int a, b; | |
2296 | ||
2297 | a = wRWORD (BITS (16, 19), i); | |
2298 | b = wRWORD (BITS (0, 3), i); | |
2299 | ||
2300 | if (a > b) | |
2301 | s = a; | |
2302 | else | |
2303 | s = b; | |
2304 | ||
2305 | r |= (s & 0xffffffff) << (i * 32); | |
2306 | } | |
2307 | else | |
2308 | { | |
2309 | unsigned int a, b; | |
2310 | ||
2311 | a = wRWORD (BITS (16, 19), i); | |
2312 | b = wRWORD (BITS (0, 3), i); | |
2313 | ||
2314 | if (a > b) | |
2315 | s = a; | |
2316 | else | |
2317 | s = b; | |
2318 | ||
2319 | r |= (s & 0xffffffff) << (i * 32); | |
2320 | } | |
2321 | break; | |
2322 | ||
2323 | default: | |
2324 | ARMul_UndefInstr (state, instr); | |
2325 | return ARMul_DONE; | |
2326 | } | |
2327 | ||
2328 | wR [BITS (12, 15)] = r; | |
2329 | wC [wCon] |= WCON_MUP; | |
2330 | ||
2331 | return ARMul_DONE; | |
2332 | } | |
2333 | ||
2334 | static int | |
2335 | WMIN (ARMul_State * state, ARMword instr) | |
2336 | { | |
2337 | ARMdword r = 0; | |
2338 | ARMdword s; | |
2339 | int i; | |
2340 | ||
2341 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
2342 | return ARMul_CANT; | |
2343 | ||
2344 | #ifdef DEBUG | |
2345 | fprintf (stderr, "wmin\n"); | |
2346 | #endif | |
2347 | ||
2348 | switch (BITS (22, 23)) | |
2349 | { | |
2350 | case Bqual: | |
2351 | for (i = 0; i < 8; i++) | |
2352 | if (BIT (21)) /* Signed. */ | |
2353 | { | |
2354 | int a, b; | |
2355 | ||
2356 | a = wRBYTE (BITS (16, 19), i); | |
2357 | a = EXTEND8 (a); | |
2358 | ||
2359 | b = wRBYTE (BITS (0, 3), i); | |
2360 | b = EXTEND8 (b); | |
2361 | ||
2362 | if (a < b) | |
2363 | s = a; | |
2364 | else | |
2365 | s = b; | |
2366 | ||
2367 | r |= (s & 0xff) << (i * 8); | |
2368 | } | |
2369 | else /* Unsigned. */ | |
2370 | { | |
2371 | unsigned int a, b; | |
2372 | ||
2373 | a = wRBYTE (BITS (16, 19), i); | |
2374 | b = wRBYTE (BITS (0, 3), i); | |
2375 | ||
2376 | if (a < b) | |
2377 | s = a; | |
2378 | else | |
2379 | s = b; | |
2380 | ||
2381 | r |= (s & 0xff) << (i * 8); | |
2382 | } | |
2383 | break; | |
2384 | ||
2385 | case Hqual: | |
2386 | for (i = 0; i < 4; i++) | |
2387 | if (BIT (21)) /* Signed. */ | |
2388 | { | |
2389 | int a, b; | |
2390 | ||
2391 | a = wRHALF (BITS (16, 19), i); | |
2392 | a = EXTEND16 (a); | |
2393 | ||
2394 | b = wRHALF (BITS (0, 3), i); | |
2395 | b = EXTEND16 (b); | |
2396 | ||
2397 | if (a < b) | |
2398 | s = a; | |
2399 | else | |
2400 | s = b; | |
2401 | ||
2402 | r |= (s & 0xffff) << (i * 16); | |
2403 | } | |
2404 | else | |
2405 | { | |
2406 | /* Unsigned. */ | |
2407 | unsigned int a, b; | |
2408 | ||
2409 | a = wRHALF (BITS (16, 19), i); | |
2410 | b = wRHALF (BITS ( 0, 3), i); | |
2411 | ||
2412 | if (a < b) | |
2413 | s = a; | |
2414 | else | |
2415 | s = b; | |
2416 | ||
2417 | r |= (s & 0xffff) << (i * 16); | |
2418 | } | |
2419 | break; | |
2420 | ||
2421 | case Wqual: | |
2422 | for (i = 0; i < 2; i++) | |
2423 | if (BIT (21)) /* Signed. */ | |
2424 | { | |
2425 | int a, b; | |
2426 | ||
2427 | a = wRWORD (BITS (16, 19), i); | |
2428 | b = wRWORD (BITS ( 0, 3), i); | |
2429 | ||
2430 | if (a < b) | |
2431 | s = a; | |
2432 | else | |
2433 | s = b; | |
2434 | ||
2435 | r |= (s & 0xffffffff) << (i * 32); | |
2436 | } | |
2437 | else | |
2438 | { | |
2439 | unsigned int a, b; | |
2440 | ||
2441 | a = wRWORD (BITS (16, 19), i); | |
2442 | b = wRWORD (BITS (0, 3), i); | |
2443 | ||
2444 | if (a < b) | |
2445 | s = a; | |
2446 | else | |
2447 | s = b; | |
2448 | ||
2449 | r |= (s & 0xffffffff) << (i * 32); | |
2450 | } | |
2451 | break; | |
2452 | ||
2453 | default: | |
2454 | ARMul_UndefInstr (state, instr); | |
2455 | return ARMul_DONE; | |
2456 | } | |
2457 | ||
2458 | wR [BITS (12, 15)] = r; | |
2459 | wC [wCon] |= WCON_MUP; | |
2460 | ||
2461 | return ARMul_DONE; | |
2462 | } | |
2463 | ||
2464 | static int | |
2465 | WMUL (ARMword instr) | |
2466 | { | |
2467 | ARMdword r = 0; | |
2468 | ARMdword s; | |
2469 | int i; | |
2470 | ||
2471 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
2472 | return ARMul_CANT; | |
2473 | ||
2474 | #ifdef DEBUG | |
2475 | fprintf (stderr, "wmul\n"); | |
2476 | #endif | |
2477 | ||
2478 | for (i = 0; i < 4; i++) | |
2479 | if (BIT (21)) /* Signed. */ | |
2480 | { | |
2481 | long a, b; | |
2482 | ||
2483 | a = wRHALF (BITS (16, 19), i); | |
2484 | a = EXTEND16 (a); | |
2485 | ||
2486 | b = wRHALF (BITS (0, 3), i); | |
2487 | b = EXTEND16 (b); | |
2488 | ||
2489 | s = a * b; | |
2490 | ||
2491 | if (BIT (20)) | |
2492 | r |= ((s >> 16) & 0xffff) << (i * 16); | |
2493 | else | |
2494 | r |= (s & 0xffff) << (i * 16); | |
2495 | } | |
2496 | else /* Unsigned. */ | |
2497 | { | |
2498 | unsigned long a, b; | |
2499 | ||
2500 | a = wRHALF (BITS (16, 19), i); | |
2501 | b = wRHALF (BITS (0, 3), i); | |
2502 | ||
2503 | s = a * b; | |
2504 | ||
2505 | if (BIT (20)) | |
2506 | r |= ((s >> 16) & 0xffff) << (i * 16); | |
2507 | else | |
2508 | r |= (s & 0xffff) << (i * 16); | |
2509 | } | |
2510 | ||
2511 | wR [BITS (12, 15)] = r; | |
2512 | wC [wCon] |= WCON_MUP; | |
2513 | ||
2514 | return ARMul_DONE; | |
2515 | } | |
2516 | ||
2517 | static int | |
2518 | WOR (ARMword instr) | |
2519 | { | |
2520 | ARMword psr = 0; | |
2521 | ARMdword result; | |
2522 | ||
2523 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
2524 | return ARMul_CANT; | |
2525 | ||
2526 | #ifdef DEBUG | |
2527 | fprintf (stderr, "wor\n"); | |
2528 | #endif | |
2529 | ||
2530 | result = wR [BITS (16, 19)] | wR [BITS (0, 3)]; | |
2531 | wR [BITS (12, 15)] = result; | |
2532 | ||
2533 | SIMD64_SET (psr, (result == 0), SIMD_ZBIT); | |
2534 | SIMD64_SET (psr, (result & (1ULL << 63)), SIMD_NBIT); | |
2535 | ||
2536 | wC [wCASF] = psr; | |
2537 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
2538 | ||
2539 | return ARMul_DONE; | |
2540 | } | |
2541 | ||
2542 | static int | |
2543 | WPACK (ARMul_State * state, ARMword instr) | |
2544 | { | |
2545 | ARMdword r = 0; | |
2546 | ARMword psr = 0; | |
2547 | ARMdword x; | |
2548 | ARMdword s; | |
2549 | int i; | |
2550 | int satrv[8]; | |
2551 | ||
2552 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
2553 | return ARMul_CANT; | |
2554 | ||
2555 | #ifdef DEBUG | |
2556 | fprintf (stderr, "wpack\n"); | |
2557 | #endif | |
2558 | ||
2559 | switch (BITS (22, 23)) | |
2560 | { | |
2561 | case Hqual: | |
2562 | for (i = 0; i < 8; i++) | |
2563 | { | |
2564 | x = wRHALF (i < 4 ? BITS (16, 19) : BITS (0, 3), i & 3); | |
2565 | ||
2566 | switch (BITS (20, 21)) | |
2567 | { | |
2568 | case UnsignedSaturation: | |
2569 | s = IwmmxtSaturateU8 (x, satrv + BITIDX8 (i)); | |
2570 | break; | |
2571 | ||
2572 | case SignedSaturation: | |
2573 | s = IwmmxtSaturateS8 (x, satrv + BITIDX8 (i)); | |
2574 | break; | |
2575 | ||
2576 | default: | |
2577 | ARMul_UndefInstr (state, instr); | |
2578 | return ARMul_DONE; | |
2579 | } | |
2580 | ||
2581 | r |= (s & 0xff) << (i * 8); | |
2582 | SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i); | |
2583 | SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i); | |
2584 | } | |
2585 | break; | |
2586 | ||
2587 | case Wqual: | |
2588 | satrv[0] = satrv[2] = satrv[4] = satrv[6] = 0; | |
2589 | ||
2590 | for (i = 0; i < 4; i++) | |
2591 | { | |
2592 | x = wRWORD (i < 2 ? BITS (16, 19) : BITS (0, 3), i & 1); | |
2593 | ||
2594 | switch (BITS (20, 21)) | |
2595 | { | |
2596 | case UnsignedSaturation: | |
2597 | s = IwmmxtSaturateU16 (x, satrv + BITIDX16 (i)); | |
2598 | break; | |
2599 | ||
2600 | case SignedSaturation: | |
2601 | s = IwmmxtSaturateS16 (x, satrv + BITIDX16 (i)); | |
2602 | break; | |
2603 | ||
2604 | default: | |
2605 | ARMul_UndefInstr (state, instr); | |
2606 | return ARMul_DONE; | |
2607 | } | |
2608 | ||
2609 | r |= (s & 0xffff) << (i * 16); | |
2610 | SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i); | |
2611 | SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i); | |
2612 | } | |
2613 | break; | |
2614 | ||
2615 | case Dqual: | |
2616 | satrv[0] = satrv[1] = satrv[2] = satrv[4] = satrv[5] = satrv[6] = 0; | |
2617 | ||
2618 | for (i = 0; i < 2; i++) | |
2619 | { | |
2620 | x = wR [i ? BITS (0, 3) : BITS (16, 19)]; | |
2621 | ||
2622 | switch (BITS (20, 21)) | |
2623 | { | |
2624 | case UnsignedSaturation: | |
2625 | s = IwmmxtSaturateU32 (x, satrv + BITIDX32 (i)); | |
2626 | break; | |
2627 | ||
2628 | case SignedSaturation: | |
2629 | s = IwmmxtSaturateS32 (x, satrv + BITIDX32 (i)); | |
2630 | break; | |
2631 | ||
2632 | default: | |
2633 | ARMul_UndefInstr (state, instr); | |
2634 | return ARMul_DONE; | |
2635 | } | |
2636 | ||
2637 | r |= (s & 0xffffffff) << (i * 32); | |
2638 | SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i); | |
2639 | SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i); | |
2640 | } | |
2641 | break; | |
2642 | ||
2643 | default: | |
2644 | ARMul_UndefInstr (state, instr); | |
2645 | return ARMul_DONE; | |
2646 | } | |
2647 | ||
2648 | wC [wCASF] = psr; | |
2649 | wR [BITS (12, 15)] = r; | |
2650 | SET_wCSSFvec (satrv); | |
2651 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
2652 | ||
2653 | return ARMul_DONE; | |
2654 | } | |
2655 | ||
2656 | static int | |
2657 | WROR (ARMul_State * state, ARMword instr) | |
2658 | { | |
2659 | ARMdword r = 0; | |
2660 | ARMdword s; | |
2661 | ARMword psr = 0; | |
2662 | int i; | |
2663 | int shift; | |
2664 | ||
2665 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
2666 | return ARMul_CANT; | |
2667 | ||
2668 | #ifdef DEBUG | |
2669 | fprintf (stderr, "wror\n"); | |
2670 | #endif | |
2671 | ||
2672 | DECODE_G_BIT (state, instr, shift); | |
2673 | ||
2674 | switch (BITS (22, 23)) | |
2675 | { | |
2676 | case Hqual: | |
2677 | shift &= 0xf; | |
2678 | for (i = 0; i < 4; i++) | |
2679 | { | |
2680 | s = ((wRHALF (BITS (16, 19), i) & 0xffff) << (16 - shift)) | |
2681 | | ((wRHALF (BITS (16, 19), i) & 0xffff) >> shift); | |
2682 | r |= (s & 0xffff) << (i * 16); | |
2683 | SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i); | |
2684 | SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i); | |
2685 | } | |
2686 | break; | |
2687 | ||
2688 | case Wqual: | |
2689 | shift &= 0x1f; | |
2690 | for (i = 0; i < 2; i++) | |
2691 | { | |
2692 | s = ((wRWORD (BITS (16, 19), i) & 0xffffffff) << (32 - shift)) | |
2693 | | ((wRWORD (BITS (16, 19), i) & 0xffffffff) >> shift); | |
2694 | r |= (s & 0xffffffff) << (i * 32); | |
2695 | SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i); | |
2696 | SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i); | |
2697 | } | |
2698 | break; | |
2699 | ||
2700 | case Dqual: | |
2701 | shift &= 0x3f; | |
2702 | r = (wR [BITS (16, 19)] >> shift) | |
2703 | | (wR [BITS (16, 19)] << (64 - shift)); | |
2704 | ||
2705 | SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT); | |
2706 | SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT); | |
2707 | break; | |
2708 | ||
2709 | default: | |
2710 | ARMul_UndefInstr (state, instr); | |
2711 | return ARMul_DONE; | |
2712 | } | |
2713 | ||
2714 | wC [wCASF] = psr; | |
2715 | wR [BITS (12, 15)] = r; | |
2716 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
2717 | ||
2718 | return ARMul_DONE; | |
2719 | } | |
2720 | ||
2721 | static int | |
2722 | WSAD (ARMword instr) | |
2723 | { | |
2724 | ARMdword r; | |
2725 | int s; | |
2726 | int i; | |
2727 | ||
2728 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
2729 | return ARMul_CANT; | |
2730 | ||
2731 | #ifdef DEBUG | |
2732 | fprintf (stderr, "wsad\n"); | |
2733 | #endif | |
2734 | ||
2735 | /* Z bit. */ | |
2736 | r = BIT (20) ? 0 : (wR [BITS (12, 15)] & 0xffffffff); | |
2737 | ||
2738 | if (BIT (22)) | |
2739 | /* Half. */ | |
2740 | for (i = 0; i < 4; i++) | |
2741 | { | |
2742 | s = (wRHALF (BITS (16, 19), i) - wRHALF (BITS (0, 3), i)); | |
2743 | r += abs (s); | |
2744 | } | |
2745 | else | |
2746 | /* Byte. */ | |
2747 | for (i = 0; i < 8; i++) | |
2748 | { | |
2749 | s = (wRBYTE (BITS (16, 19), i) - wRBYTE (BITS (0, 3), i)); | |
2750 | r += abs (s); | |
2751 | } | |
2752 | ||
2753 | wR [BITS (12, 15)] = r; | |
2754 | wC [wCon] |= WCON_MUP; | |
2755 | ||
2756 | return ARMul_DONE; | |
2757 | } | |
2758 | ||
2759 | static int | |
2760 | WSHUFH (ARMword instr) | |
2761 | { | |
2762 | ARMdword r = 0; | |
2763 | ARMword psr = 0; | |
2764 | ARMdword s; | |
2765 | int i; | |
2766 | int imm8; | |
2767 | ||
2768 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
2769 | return ARMul_CANT; | |
2770 | ||
2771 | #ifdef DEBUG | |
2772 | fprintf (stderr, "wshufh\n"); | |
2773 | #endif | |
2774 | ||
2775 | imm8 = (BITS (20, 23) << 4) | BITS (0, 3); | |
2776 | ||
2777 | for (i = 0; i < 4; i++) | |
2778 | { | |
2779 | s = wRHALF (BITS (16, 19), ((imm8 >> (i * 2) & 3)) & 0xff); | |
2780 | r |= (s & 0xffff) << (i * 16); | |
2781 | SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i); | |
2782 | SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i); | |
2783 | } | |
2784 | ||
2785 | wC [wCASF] = psr; | |
2786 | wR [BITS (12, 15)] = r; | |
2787 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
2788 | ||
2789 | return ARMul_DONE; | |
2790 | } | |
2791 | ||
2792 | static int | |
2793 | WSLL (ARMul_State * state, ARMword instr) | |
2794 | { | |
2795 | ARMdword r = 0; | |
2796 | ARMdword s; | |
2797 | ARMword psr = 0; | |
2798 | int i; | |
2799 | unsigned shift; | |
2800 | ||
2801 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
2802 | return ARMul_CANT; | |
2803 | ||
2804 | #ifdef DEBUG | |
2805 | fprintf (stderr, "wsll\n"); | |
2806 | #endif | |
2807 | ||
2808 | DECODE_G_BIT (state, instr, shift); | |
2809 | ||
2810 | switch (BITS (22, 23)) | |
2811 | { | |
2812 | case Hqual: | |
2813 | for (i = 0; i < 4; i++) | |
2814 | { | |
2815 | if (shift > 15) | |
2816 | s = 0; | |
2817 | else | |
2818 | s = ((wRHALF (BITS (16, 19), i) & 0xffff) << shift); | |
2819 | r |= (s & 0xffff) << (i * 16); | |
2820 | SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i); | |
2821 | SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i); | |
2822 | } | |
2823 | break; | |
2824 | ||
2825 | case Wqual: | |
2826 | for (i = 0; i < 2; i++) | |
2827 | { | |
2828 | if (shift > 31) | |
2829 | s = 0; | |
2830 | else | |
2831 | s = ((wRWORD (BITS (16, 19), i) & 0xffffffff) << shift); | |
2832 | r |= (s & 0xffffffff) << (i * 32); | |
2833 | SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i); | |
2834 | SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i); | |
2835 | } | |
2836 | break; | |
2837 | ||
2838 | case Dqual: | |
2839 | if (shift > 63) | |
2840 | r = 0; | |
2841 | else | |
16d55f14 | 2842 | r = ((wR[BITS (16, 19)] & 0xffffffffffffffffULL) << shift); |
0f026fd0 NC |
2843 | |
2844 | SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT); | |
2845 | SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT); | |
2846 | break; | |
2847 | ||
2848 | default: | |
2849 | ARMul_UndefInstr (state, instr); | |
2850 | return ARMul_DONE; | |
2851 | } | |
2852 | ||
2853 | wC [wCASF] = psr; | |
2854 | wR [BITS (12, 15)] = r; | |
2855 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
2856 | ||
2857 | return ARMul_DONE; | |
2858 | } | |
2859 | ||
2860 | static int | |
2861 | WSRA (ARMul_State * state, ARMword instr) | |
2862 | { | |
2863 | ARMdword r = 0; | |
2864 | ARMdword s; | |
2865 | ARMword psr = 0; | |
2866 | int i; | |
2867 | unsigned shift; | |
2868 | signed long t; | |
2869 | ||
2870 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
2871 | return ARMul_CANT; | |
2872 | ||
2873 | #ifdef DEBUG | |
2874 | fprintf (stderr, "wsra\n"); | |
2875 | #endif | |
2876 | ||
2877 | DECODE_G_BIT (state, instr, shift); | |
2878 | ||
2879 | switch (BITS (22, 23)) | |
2880 | { | |
2881 | case Hqual: | |
2882 | for (i = 0; i < 4; i++) | |
2883 | { | |
2884 | if (shift > 15) | |
2885 | t = (wRHALF (BITS (16, 19), i) & 0x8000) ? 0xffff : 0; | |
2886 | else | |
2887 | { | |
2888 | t = wRHALF (BITS (16, 19), i); | |
2889 | t = EXTEND16 (t); | |
2890 | t >>= shift; | |
2891 | } | |
2892 | ||
2893 | s = t; | |
2894 | r |= (s & 0xffff) << (i * 16); | |
2895 | SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i); | |
2896 | SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i); | |
2897 | } | |
2898 | break; | |
2899 | ||
2900 | case Wqual: | |
2901 | for (i = 0; i < 2; i++) | |
2902 | { | |
2903 | if (shift > 31) | |
2904 | t = (wRWORD (BITS (16, 19), i) & 0x80000000) ? 0xffffffff : 0; | |
2905 | else | |
2906 | { | |
2907 | t = wRWORD (BITS (16, 19), i); | |
2908 | t >>= shift; | |
2909 | } | |
2910 | s = t; | |
2911 | r |= (s & 0xffffffff) << (i * 32); | |
2912 | SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i); | |
2913 | SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i); | |
2914 | } | |
2915 | break; | |
2916 | ||
2917 | case Dqual: | |
2918 | if (shift > 63) | |
16d55f14 | 2919 | r = (wR [BITS (16, 19)] & 0x8000000000000000ULL) ? 0xffffffffffffffffULL : 0; |
0f026fd0 | 2920 | else |
16d55f14 | 2921 | r = ((signed long long) (wR[BITS (16, 19)] & 0xffffffffffffffffULL) >> shift); |
0f026fd0 NC |
2922 | SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT); |
2923 | SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT); | |
2924 | break; | |
2925 | ||
2926 | default: | |
2927 | ARMul_UndefInstr (state, instr); | |
2928 | return ARMul_DONE; | |
2929 | } | |
2930 | ||
2931 | wC [wCASF] = psr; | |
2932 | wR [BITS (12, 15)] = r; | |
2933 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
2934 | ||
2935 | return ARMul_DONE; | |
2936 | } | |
2937 | ||
2938 | static int | |
2939 | WSRL (ARMul_State * state, ARMword instr) | |
2940 | { | |
2941 | ARMdword r = 0; | |
2942 | ARMdword s; | |
2943 | ARMword psr = 0; | |
2944 | int i; | |
2945 | unsigned int shift; | |
2946 | ||
2947 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
2948 | return ARMul_CANT; | |
2949 | ||
2950 | #ifdef DEBUG | |
2951 | fprintf (stderr, "wsrl\n"); | |
2952 | #endif | |
2953 | ||
2954 | DECODE_G_BIT (state, instr, shift); | |
2955 | ||
2956 | switch (BITS (22, 23)) | |
2957 | { | |
2958 | case Hqual: | |
2959 | for (i = 0; i < 4; i++) | |
2960 | { | |
2961 | if (shift > 15) | |
2962 | s = 0; | |
2963 | else | |
2964 | s = ((unsigned) (wRHALF (BITS (16, 19), i) & 0xffff) >> shift); | |
2965 | ||
2966 | r |= (s & 0xffff) << (i * 16); | |
2967 | SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i); | |
2968 | SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i); | |
2969 | } | |
2970 | break; | |
2971 | ||
2972 | case Wqual: | |
2973 | for (i = 0; i < 2; i++) | |
2974 | { | |
2975 | if (shift > 31) | |
2976 | s = 0; | |
2977 | else | |
2978 | s = ((unsigned long) (wRWORD (BITS (16, 19), i) & 0xffffffff) >> shift); | |
2979 | ||
2980 | r |= (s & 0xffffffff) << (i * 32); | |
2981 | SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i); | |
2982 | SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i); | |
2983 | } | |
2984 | break; | |
2985 | ||
2986 | case Dqual: | |
2987 | if (shift > 63) | |
2988 | r = 0; | |
2989 | else | |
16d55f14 | 2990 | r = (wR [BITS (16, 19)] & 0xffffffffffffffffULL) >> shift; |
0f026fd0 NC |
2991 | |
2992 | SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT); | |
2993 | SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT); | |
2994 | break; | |
2995 | ||
2996 | default: | |
2997 | ARMul_UndefInstr (state, instr); | |
2998 | return ARMul_DONE; | |
2999 | } | |
3000 | ||
3001 | wC [wCASF] = psr; | |
3002 | wR [BITS (12, 15)] = r; | |
3003 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
3004 | ||
3005 | return ARMul_DONE; | |
3006 | } | |
3007 | ||
3008 | static int | |
3009 | WSTR (ARMul_State * state, ARMword instr) | |
3010 | { | |
3011 | ARMword address; | |
3012 | int failed; | |
3013 | ||
3014 | ||
3015 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
3016 | return ARMul_CANT; | |
3017 | ||
3018 | #ifdef DEBUG | |
3019 | fprintf (stderr, "wstr\n"); | |
3020 | #endif | |
3021 | ||
3022 | address = Compute_Iwmmxt_Address (state, instr, & failed); | |
3023 | if (failed) | |
3024 | return ARMul_CANT; | |
3025 | ||
3026 | if (BITS (28, 31) == 0xf) | |
3027 | { | |
3028 | /* WSTRW wCx */ | |
3029 | Iwmmxt_Store_Word (state, address, wC [BITS (12, 15)]); | |
3030 | } | |
3031 | else if (BIT (8) == 0) | |
3032 | { | |
3033 | if (BIT (22) == 0) | |
3034 | /* WSTRB */ | |
3035 | Iwmmxt_Store_Byte (state, address, wR [BITS (12, 15)]); | |
3036 | else | |
3037 | /* WSTRH */ | |
3038 | Iwmmxt_Store_Half_Word (state, address, wR [BITS (12, 15)]); | |
3039 | } | |
3040 | else | |
3041 | { | |
3042 | if (BIT (22) == 0) | |
3043 | /* WSTRW wRd */ | |
3044 | Iwmmxt_Store_Word (state, address, wR [BITS (12, 15)]); | |
3045 | else | |
3046 | /* WSTRD */ | |
3047 | Iwmmxt_Store_Double_Word (state, address, wR [BITS (12, 15)]); | |
3048 | } | |
3049 | ||
3050 | return ARMul_DONE; | |
3051 | } | |
3052 | ||
3053 | static int | |
3054 | WSUB (ARMul_State * state, ARMword instr) | |
3055 | { | |
3056 | ARMdword r = 0; | |
3057 | ARMword psr = 0; | |
3058 | ARMdword x; | |
3059 | ARMdword s; | |
3060 | int i; | |
3061 | int carry; | |
3062 | int overflow; | |
3063 | int satrv[8]; | |
3064 | ||
3065 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
3066 | return ARMul_CANT; | |
3067 | ||
3068 | #ifdef DEBUG | |
3069 | fprintf (stderr, "wsub\n"); | |
3070 | #endif | |
3071 | ||
3072 | /* Subtract two numbers using the specified function, | |
3073 | leaving setting the carry bit as required. */ | |
3074 | #define SUBx(x, y, m, f) \ | |
3075 | (*f) (wRBITS (BITS (16, 19), (x), (y)) & (m), \ | |
3076 | wRBITS (BITS ( 0, 3), (x), (y)) & (m), & carry, & overflow) | |
3077 | ||
3078 | switch (BITS (22, 23)) | |
3079 | { | |
3080 | case Bqual: | |
3081 | for (i = 0; i < 8; i++) | |
3082 | { | |
3083 | switch (BITS (20, 21)) | |
3084 | { | |
3085 | case NoSaturation: | |
3086 | s = SUBx ((i * 8), (i * 8) + 7, 0xff, SubS8); | |
3087 | satrv [BITIDX8 (i)] = 0; | |
3088 | r |= (s & 0xff) << (i * 8); | |
3089 | SIMD8_SET (psr, NBIT8 (s), SIMD_NBIT, i); | |
3090 | SIMD8_SET (psr, ZBIT8 (s), SIMD_ZBIT, i); | |
3091 | SIMD8_SET (psr, carry, SIMD_CBIT, i); | |
3092 | SIMD8_SET (psr, overflow, SIMD_VBIT, i); | |
3093 | break; | |
3094 | ||
3095 | case UnsignedSaturation: | |
3096 | s = SUBx ((i * 8), (i * 8) + 7, 0xff, SubU8); | |
3097 | x = IwmmxtSaturateU8 (s, satrv + BITIDX8 (i)); | |
3098 | r |= (x & 0xff) << (i * 8); | |
3099 | SIMD8_SET (psr, NBIT8 (x), SIMD_NBIT, i); | |
3100 | SIMD8_SET (psr, ZBIT8 (x), SIMD_ZBIT, i); | |
3101 | if (! satrv [BITIDX8 (i)]) | |
3102 | { | |
3103 | SIMD8_SET (psr, carry, SIMD_CBIT, i); | |
3104 | SIMD8_SET (psr, overflow, SIMD_VBIT, i); | |
3105 | } | |
3106 | break; | |
3107 | ||
3108 | case SignedSaturation: | |
3109 | s = SUBx ((i * 8), (i * 8) + 7, 0xff, SubS8); | |
3110 | x = IwmmxtSaturateS8 (s, satrv + BITIDX8 (i)); | |
3111 | r |= (x & 0xff) << (i * 8); | |
3112 | SIMD8_SET (psr, NBIT8 (x), SIMD_NBIT, i); | |
3113 | SIMD8_SET (psr, ZBIT8 (x), SIMD_ZBIT, i); | |
3114 | if (! satrv [BITIDX8 (i)]) | |
3115 | { | |
3116 | SIMD8_SET (psr, carry, SIMD_CBIT, i); | |
3117 | SIMD8_SET (psr, overflow, SIMD_VBIT, i); | |
3118 | } | |
3119 | break; | |
3120 | ||
3121 | default: | |
3122 | ARMul_UndefInstr (state, instr); | |
3123 | return ARMul_DONE; | |
3124 | } | |
3125 | } | |
3126 | break; | |
3127 | ||
3128 | case Hqual: | |
3129 | satrv[0] = satrv[2] = satrv[4] = satrv[6] = 0; | |
3130 | ||
3131 | for (i = 0; i < 4; i++) | |
3132 | { | |
3133 | switch (BITS (20, 21)) | |
3134 | { | |
3135 | case NoSaturation: | |
3136 | s = SUBx ((i * 16), (i * 16) + 15, 0xffff, SubU16); | |
3137 | satrv [BITIDX16 (i)] = 0; | |
3138 | r |= (s & 0xffff) << (i * 16); | |
3139 | SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i); | |
3140 | SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i); | |
3141 | SIMD16_SET (psr, carry, SIMD_CBIT, i); | |
3142 | SIMD16_SET (psr, overflow, SIMD_VBIT, i); | |
3143 | break; | |
3144 | ||
3145 | case UnsignedSaturation: | |
3146 | s = SUBx ((i * 16), (i * 16) + 15, 0xffff, SubU16); | |
3147 | x = IwmmxtSaturateU16 (s, satrv + BITIDX16 (i)); | |
3148 | r |= (x & 0xffff) << (i * 16); | |
3149 | SIMD16_SET (psr, NBIT16 (x & 0xffff), SIMD_NBIT, i); | |
3150 | SIMD16_SET (psr, ZBIT16 (x), SIMD_ZBIT, i); | |
3151 | if (! satrv [BITIDX16 (i)]) | |
3152 | { | |
3153 | SIMD16_SET (psr, carry, SIMD_CBIT, i); | |
3154 | SIMD16_SET (psr, overflow, SIMD_VBIT, i); | |
3155 | } | |
3156 | break; | |
3157 | ||
3158 | case SignedSaturation: | |
3159 | s = SUBx ((i * 16), (i * 16) + 15, 0xffff, SubS16); | |
3160 | x = IwmmxtSaturateS16 (s, satrv + BITIDX16 (i)); | |
3161 | r |= (x & 0xffff) << (i * 16); | |
3162 | SIMD16_SET (psr, NBIT16 (x), SIMD_NBIT, i); | |
3163 | SIMD16_SET (psr, ZBIT16 (x), SIMD_ZBIT, i); | |
3164 | if (! satrv [BITIDX16 (i)]) | |
3165 | { | |
3166 | SIMD16_SET (psr, carry, SIMD_CBIT, i); | |
3167 | SIMD16_SET (psr, overflow, SIMD_VBIT, i); | |
3168 | } | |
3169 | break; | |
3170 | ||
3171 | default: | |
3172 | ARMul_UndefInstr (state, instr); | |
3173 | return ARMul_DONE; | |
3174 | } | |
3175 | } | |
3176 | break; | |
3177 | ||
3178 | case Wqual: | |
3179 | satrv[0] = satrv[1] = satrv[2] = satrv[4] = satrv[5] = satrv[6] = 0; | |
3180 | ||
3181 | for (i = 0; i < 2; i++) | |
3182 | { | |
3183 | switch (BITS (20, 21)) | |
3184 | { | |
3185 | case NoSaturation: | |
3186 | s = SUBx ((i * 32), (i * 32) + 31, 0xffffffff, SubU32); | |
3187 | satrv[BITIDX32 (i)] = 0; | |
3188 | r |= (s & 0xffffffff) << (i * 32); | |
3189 | SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i); | |
3190 | SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i); | |
3191 | SIMD32_SET (psr, carry, SIMD_CBIT, i); | |
3192 | SIMD32_SET (psr, overflow, SIMD_VBIT, i); | |
3193 | break; | |
3194 | ||
3195 | case UnsignedSaturation: | |
3196 | s = SUBx ((i * 32), (i * 32) + 31, 0xffffffff, SubU32); | |
3197 | x = IwmmxtSaturateU32 (s, satrv + BITIDX32 (i)); | |
3198 | r |= (x & 0xffffffff) << (i * 32); | |
3199 | SIMD32_SET (psr, NBIT32 (x), SIMD_NBIT, i); | |
3200 | SIMD32_SET (psr, ZBIT32 (x), SIMD_ZBIT, i); | |
3201 | if (! satrv [BITIDX32 (i)]) | |
3202 | { | |
3203 | SIMD32_SET (psr, carry, SIMD_CBIT, i); | |
3204 | SIMD32_SET (psr, overflow, SIMD_VBIT, i); | |
3205 | } | |
3206 | break; | |
3207 | ||
3208 | case SignedSaturation: | |
3209 | s = SUBx ((i * 32), (i * 32) + 31, 0xffffffff, SubS32); | |
3210 | x = IwmmxtSaturateS32 (s, satrv + BITIDX32 (i)); | |
3211 | r |= (x & 0xffffffff) << (i * 32); | |
3212 | SIMD32_SET (psr, NBIT32 (x), SIMD_NBIT, i); | |
3213 | SIMD32_SET (psr, ZBIT32 (x), SIMD_ZBIT, i); | |
3214 | if (! satrv [BITIDX32 (i)]) | |
3215 | { | |
3216 | SIMD32_SET (psr, carry, SIMD_CBIT, i); | |
3217 | SIMD32_SET (psr, overflow, SIMD_VBIT, i); | |
3218 | } | |
3219 | break; | |
3220 | ||
3221 | default: | |
3222 | ARMul_UndefInstr (state, instr); | |
3223 | return ARMul_DONE; | |
3224 | } | |
3225 | } | |
3226 | break; | |
3227 | ||
3228 | default: | |
3229 | ARMul_UndefInstr (state, instr); | |
3230 | return ARMul_DONE; | |
3231 | } | |
3232 | ||
3233 | wR [BITS (12, 15)] = r; | |
3234 | wC [wCASF] = psr; | |
3235 | SET_wCSSFvec (satrv); | |
3236 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
3237 | ||
3238 | #undef SUBx | |
3239 | ||
3240 | return ARMul_DONE; | |
3241 | } | |
3242 | ||
3243 | static int | |
3244 | WUNPCKEH (ARMul_State * state, ARMword instr) | |
3245 | { | |
3246 | ARMdword r = 0; | |
3247 | ARMword psr = 0; | |
3248 | ARMdword s; | |
3249 | int i; | |
3250 | ||
3251 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
3252 | return ARMul_CANT; | |
3253 | ||
3254 | #ifdef DEBUG | |
3255 | fprintf (stderr, "wunpckeh\n"); | |
3256 | #endif | |
3257 | ||
3258 | switch (BITS (22, 23)) | |
3259 | { | |
3260 | case Bqual: | |
3261 | for (i = 0; i < 4; i++) | |
3262 | { | |
3263 | s = wRBYTE (BITS (16, 19), i + 4); | |
3264 | ||
3265 | if (BIT (21) && NBIT8 (s)) | |
3266 | s |= 0xff00; | |
3267 | ||
3268 | r |= (s & 0xffff) << (i * 16); | |
3269 | SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i); | |
3270 | SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i); | |
3271 | } | |
3272 | break; | |
3273 | ||
3274 | case Hqual: | |
3275 | for (i = 0; i < 2; i++) | |
3276 | { | |
3277 | s = wRHALF (BITS (16, 19), i + 2); | |
3278 | ||
3279 | if (BIT (21) && NBIT16 (s)) | |
3280 | s |= 0xffff0000; | |
3281 | ||
3282 | r |= (s & 0xffffffff) << (i * 32); | |
3283 | SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i); | |
3284 | SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i); | |
3285 | } | |
3286 | break; | |
3287 | ||
3288 | case Wqual: | |
3289 | r = wRWORD (BITS (16, 19), 1); | |
3290 | ||
3291 | if (BIT (21) && NBIT32 (r)) | |
16d55f14 | 3292 | r |= 0xffffffff00000000ULL; |
0f026fd0 NC |
3293 | |
3294 | SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT); | |
3295 | SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT); | |
3296 | break; | |
3297 | ||
3298 | default: | |
3299 | ARMul_UndefInstr (state, instr); | |
3300 | return ARMul_DONE; | |
3301 | } | |
3302 | ||
3303 | wC [wCASF] = psr; | |
3304 | wR [BITS (12, 15)] = r; | |
3305 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
3306 | ||
3307 | return ARMul_DONE; | |
3308 | } | |
3309 | ||
3310 | static int | |
3311 | WUNPCKEL (ARMul_State * state, ARMword instr) | |
3312 | { | |
3313 | ARMdword r = 0; | |
3314 | ARMword psr = 0; | |
3315 | ARMdword s; | |
3316 | int i; | |
3317 | ||
3318 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
3319 | return ARMul_CANT; | |
3320 | ||
3321 | #ifdef DEBUG | |
3322 | fprintf (stderr, "wunpckel\n"); | |
3323 | #endif | |
3324 | ||
3325 | switch (BITS (22, 23)) | |
3326 | { | |
3327 | case Bqual: | |
3328 | for (i = 0; i < 4; i++) | |
3329 | { | |
3330 | s = wRBYTE (BITS (16, 19), i); | |
3331 | ||
3332 | if (BIT (21) && NBIT8 (s)) | |
3333 | s |= 0xff00; | |
3334 | ||
3335 | r |= (s & 0xffff) << (i * 16); | |
3336 | SIMD16_SET (psr, NBIT16 (s), SIMD_NBIT, i); | |
3337 | SIMD16_SET (psr, ZBIT16 (s), SIMD_ZBIT, i); | |
3338 | } | |
3339 | break; | |
3340 | ||
3341 | case Hqual: | |
3342 | for (i = 0; i < 2; i++) | |
3343 | { | |
3344 | s = wRHALF (BITS (16, 19), i); | |
3345 | ||
3346 | if (BIT (21) && NBIT16 (s)) | |
3347 | s |= 0xffff0000; | |
3348 | ||
3349 | r |= (s & 0xffffffff) << (i * 32); | |
3350 | SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, i); | |
3351 | SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, i); | |
3352 | } | |
3353 | break; | |
3354 | ||
3355 | case Wqual: | |
3356 | r = wRWORD (BITS (16, 19), 0); | |
3357 | ||
3358 | if (BIT (21) && NBIT32 (r)) | |
16d55f14 | 3359 | r |= 0xffffffff00000000ULL; |
0f026fd0 NC |
3360 | |
3361 | SIMD64_SET (psr, NBIT64 (r), SIMD_NBIT); | |
3362 | SIMD64_SET (psr, ZBIT64 (r), SIMD_ZBIT); | |
3363 | break; | |
3364 | ||
3365 | default: | |
3366 | ARMul_UndefInstr (state, instr); | |
3367 | return ARMul_DONE; | |
3368 | } | |
3369 | ||
3370 | wC [wCASF] = psr; | |
3371 | wR [BITS (12, 15)] = r; | |
3372 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
3373 | ||
3374 | return ARMul_DONE; | |
3375 | } | |
3376 | ||
3377 | static int | |
3378 | WUNPCKIH (ARMul_State * state, ARMword instr) | |
3379 | { | |
3380 | ARMword a, b; | |
3381 | ARMdword r = 0; | |
3382 | ARMword psr = 0; | |
3383 | ARMdword s; | |
3384 | int i; | |
3385 | ||
3386 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
3387 | return ARMul_CANT; | |
3388 | ||
3389 | #ifdef DEBUG | |
3390 | fprintf (stderr, "wunpckih\n"); | |
3391 | #endif | |
3392 | ||
3393 | switch (BITS (22, 23)) | |
3394 | { | |
3395 | case Bqual: | |
3396 | for (i = 0; i < 4; i++) | |
3397 | { | |
3398 | a = wRBYTE (BITS (16, 19), i + 4); | |
3399 | b = wRBYTE (BITS ( 0, 3), i + 4); | |
3400 | s = a | (b << 8); | |
3401 | r |= (s & 0xffff) << (i * 16); | |
3402 | SIMD8_SET (psr, NBIT8 (a), SIMD_NBIT, i * 2); | |
3403 | SIMD8_SET (psr, ZBIT8 (a), SIMD_ZBIT, i * 2); | |
3404 | SIMD8_SET (psr, NBIT8 (b), SIMD_NBIT, (i * 2) + 1); | |
3405 | SIMD8_SET (psr, ZBIT8 (b), SIMD_ZBIT, (i * 2) + 1); | |
3406 | } | |
3407 | break; | |
3408 | ||
3409 | case Hqual: | |
3410 | for (i = 0; i < 2; i++) | |
3411 | { | |
3412 | a = wRHALF (BITS (16, 19), i + 2); | |
3413 | b = wRHALF (BITS ( 0, 3), i + 2); | |
3414 | s = a | (b << 16); | |
3415 | r |= (s & 0xffffffff) << (i * 32); | |
3416 | SIMD16_SET (psr, NBIT16 (a), SIMD_NBIT, (i * 2)); | |
3417 | SIMD16_SET (psr, ZBIT16 (a), SIMD_ZBIT, (i * 2)); | |
3418 | SIMD16_SET (psr, NBIT16 (b), SIMD_NBIT, (i * 2) + 1); | |
3419 | SIMD16_SET (psr, ZBIT16 (b), SIMD_ZBIT, (i * 2) + 1); | |
3420 | } | |
3421 | break; | |
3422 | ||
3423 | case Wqual: | |
3424 | a = wRWORD (BITS (16, 19), 1); | |
3425 | s = wRWORD (BITS ( 0, 3), 1); | |
3426 | r = a | (s << 32); | |
3427 | ||
3428 | SIMD32_SET (psr, NBIT32 (a), SIMD_NBIT, 0); | |
3429 | SIMD32_SET (psr, ZBIT32 (a), SIMD_ZBIT, 0); | |
3430 | SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, 1); | |
3431 | SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, 1); | |
3432 | break; | |
3433 | ||
3434 | default: | |
3435 | ARMul_UndefInstr (state, instr); | |
3436 | return ARMul_DONE; | |
3437 | } | |
3438 | ||
3439 | wC [wCASF] = psr; | |
3440 | wR [BITS (12, 15)] = r; | |
3441 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
3442 | ||
3443 | return ARMul_DONE; | |
3444 | } | |
3445 | ||
3446 | static int | |
3447 | WUNPCKIL (ARMul_State * state, ARMword instr) | |
3448 | { | |
3449 | ARMword a, b; | |
3450 | ARMdword r = 0; | |
3451 | ARMword psr = 0; | |
3452 | ARMdword s; | |
3453 | int i; | |
3454 | ||
3455 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
3456 | return ARMul_CANT; | |
3457 | ||
3458 | #ifdef DEBUG | |
3459 | fprintf (stderr, "wunpckil\n"); | |
3460 | #endif | |
3461 | ||
3462 | switch (BITS (22, 23)) | |
3463 | { | |
3464 | case Bqual: | |
3465 | for (i = 0; i < 4; i++) | |
3466 | { | |
3467 | a = wRBYTE (BITS (16, 19), i); | |
3468 | b = wRBYTE (BITS ( 0, 3), i); | |
3469 | s = a | (b << 8); | |
3470 | r |= (s & 0xffff) << (i * 16); | |
3471 | SIMD8_SET (psr, NBIT8 (a), SIMD_NBIT, i * 2); | |
3472 | SIMD8_SET (psr, ZBIT8 (a), SIMD_ZBIT, i * 2); | |
3473 | SIMD8_SET (psr, NBIT8 (b), SIMD_NBIT, (i * 2) + 1); | |
3474 | SIMD8_SET (psr, ZBIT8 (b), SIMD_ZBIT, (i * 2) + 1); | |
3475 | } | |
3476 | break; | |
3477 | ||
3478 | case Hqual: | |
3479 | for (i = 0; i < 2; i++) | |
3480 | { | |
3481 | a = wRHALF (BITS (16, 19), i); | |
3482 | b = wRHALF (BITS ( 0, 3), i); | |
3483 | s = a | (b << 16); | |
3484 | r |= (s & 0xffffffff) << (i * 32); | |
3485 | SIMD16_SET (psr, NBIT16 (a), SIMD_NBIT, (i * 2)); | |
3486 | SIMD16_SET (psr, ZBIT16 (a), SIMD_ZBIT, (i * 2)); | |
3487 | SIMD16_SET (psr, NBIT16 (b), SIMD_NBIT, (i * 2) + 1); | |
3488 | SIMD16_SET (psr, ZBIT16 (b), SIMD_ZBIT, (i * 2) + 1); | |
3489 | } | |
3490 | break; | |
3491 | ||
3492 | case Wqual: | |
3493 | a = wRWORD (BITS (16, 19), 0); | |
3494 | s = wRWORD (BITS ( 0, 3), 0); | |
3495 | r = a | (s << 32); | |
3496 | ||
3497 | SIMD32_SET (psr, NBIT32 (a), SIMD_NBIT, 0); | |
3498 | SIMD32_SET (psr, ZBIT32 (a), SIMD_ZBIT, 0); | |
3499 | SIMD32_SET (psr, NBIT32 (s), SIMD_NBIT, 1); | |
3500 | SIMD32_SET (psr, ZBIT32 (s), SIMD_ZBIT, 1); | |
3501 | break; | |
3502 | ||
3503 | default: | |
3504 | ARMul_UndefInstr (state, instr); | |
3505 | return ARMul_DONE; | |
3506 | } | |
3507 | ||
3508 | wC [wCASF] = psr; | |
3509 | wR [BITS (12, 15)] = r; | |
3510 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
3511 | ||
3512 | return ARMul_DONE; | |
3513 | } | |
3514 | ||
3515 | static int | |
3516 | WXOR (ARMword instr) | |
3517 | { | |
3518 | ARMword psr = 0; | |
3519 | ARMdword result; | |
3520 | ||
3521 | if ((read_cp15_reg (15, 0, 1) & 3) != 3) | |
3522 | return ARMul_CANT; | |
3523 | ||
3524 | #ifdef DEBUG | |
3525 | fprintf (stderr, "wxor\n"); | |
3526 | #endif | |
3527 | ||
3528 | result = wR [BITS (16, 19)] ^ wR [BITS (0, 3)]; | |
3529 | wR [BITS (12, 15)] = result; | |
3530 | ||
3531 | SIMD64_SET (psr, (result == 0), SIMD_ZBIT); | |
3532 | SIMD64_SET (psr, (result & (1ULL << 63)), SIMD_NBIT); | |
3533 | ||
3534 | wC [wCASF] = psr; | |
3535 | wC [wCon] |= (WCON_CUP | WCON_MUP); | |
3536 | ||
3537 | return ARMul_DONE; | |
3538 | } | |
3539 | ||
3540 | /* This switch table is moved to a seperate function in order | |
3541 | to work around a compiler bug in the host compiler... */ | |
3542 | ||
3543 | static int | |
3544 | Process_Instruction (ARMul_State * state, ARMword instr) | |
3545 | { | |
3546 | int status = ARMul_BUSY; | |
3547 | ||
3548 | switch ((BITS (20, 23) << 8) | BITS (4, 11)) | |
3549 | { | |
3550 | case 0x000: status = WOR (instr); break; | |
3551 | case 0x011: status = TMCR (state, instr); break; | |
3552 | case 0x100: status = WXOR (instr); break; | |
3553 | case 0x111: status = TMRC (state, instr); break; | |
3554 | case 0x300: status = WANDN (instr); break; | |
3555 | case 0x200: status = WAND (instr); break; | |
3556 | ||
3557 | case 0x810: case 0xa10: | |
3558 | status = WMADD (instr); break; | |
3559 | ||
3560 | case 0x10e: case 0x50e: case 0x90e: case 0xd0e: | |
3561 | status = WUNPCKIL (state, instr); break; | |
3562 | case 0x10c: case 0x50c: case 0x90c: case 0xd0c: | |
3563 | status = WUNPCKIH (state, instr); break; | |
3564 | case 0x012: case 0x112: case 0x412: case 0x512: | |
3565 | status = WSAD (instr); break; | |
3566 | case 0x010: case 0x110: case 0x210: case 0x310: | |
3567 | status = WMUL (instr); break; | |
3568 | case 0x410: case 0x510: case 0x610: case 0x710: | |
3569 | status = WMAC (instr); break; | |
3570 | case 0x006: case 0x406: case 0x806: case 0xc06: | |
3571 | status = WCMPEQ (state, instr); break; | |
3572 | case 0x800: case 0x900: case 0xc00: case 0xd00: | |
3573 | status = WAVG2 (instr); break; | |
3574 | case 0x802: case 0x902: case 0xa02: case 0xb02: | |
3575 | status = WALIGNR (state, instr); break; | |
3576 | case 0x601: case 0x605: case 0x609: case 0x60d: | |
3577 | status = TINSR (state, instr); break; | |
3578 | case 0x107: case 0x507: case 0x907: case 0xd07: | |
3579 | status = TEXTRM (state, instr); break; | |
3580 | case 0x117: case 0x517: case 0x917: case 0xd17: | |
3581 | status = TEXTRC (state, instr); break; | |
3582 | case 0x401: case 0x405: case 0x409: case 0x40d: | |
3583 | status = TBCST (state, instr); break; | |
3584 | case 0x113: case 0x513: case 0x913: case 0xd13: | |
3585 | status = TANDC (state, instr); break; | |
3586 | case 0x01c: case 0x41c: case 0x81c: case 0xc1c: | |
3587 | status = WACC (state, instr); break; | |
3588 | case 0x115: case 0x515: case 0x915: case 0xd15: | |
3589 | status = TORC (state, instr); break; | |
3590 | case 0x103: case 0x503: case 0x903: case 0xd03: | |
3591 | status = TMOVMSK (state, instr); break; | |
3592 | case 0x106: case 0x306: case 0x506: case 0x706: | |
3593 | case 0x906: case 0xb06: case 0xd06: case 0xf06: | |
3594 | status = WCMPGT (state, instr); break; | |
3595 | case 0x00e: case 0x20e: case 0x40e: case 0x60e: | |
3596 | case 0x80e: case 0xa0e: case 0xc0e: case 0xe0e: | |
3597 | status = WUNPCKEL (state, instr); break; | |
3598 | case 0x00c: case 0x20c: case 0x40c: case 0x60c: | |
3599 | case 0x80c: case 0xa0c: case 0xc0c: case 0xe0c: | |
3600 | status = WUNPCKEH (state, instr); break; | |
3601 | case 0x204: case 0x604: case 0xa04: case 0xe04: | |
3602 | case 0x214: case 0x614: case 0xa14: case 0xe14: | |
3603 | status = WSRL (state, instr); break; | |
3604 | case 0x004: case 0x404: case 0x804: case 0xc04: | |
3605 | case 0x014: case 0x414: case 0x814: case 0xc14: | |
3606 | status = WSRA (state, instr); break; | |
3607 | case 0x104: case 0x504: case 0x904: case 0xd04: | |
3608 | case 0x114: case 0x514: case 0x914: case 0xd14: | |
3609 | status = WSLL (state, instr); break; | |
3610 | case 0x304: case 0x704: case 0xb04: case 0xf04: | |
3611 | case 0x314: case 0x714: case 0xb14: case 0xf14: | |
3612 | status = WROR (state, instr); break; | |
3613 | case 0x116: case 0x316: case 0x516: case 0x716: | |
3614 | case 0x916: case 0xb16: case 0xd16: case 0xf16: | |
3615 | status = WMIN (state, instr); break; | |
3616 | case 0x016: case 0x216: case 0x416: case 0x616: | |
3617 | case 0x816: case 0xa16: case 0xc16: case 0xe16: | |
3618 | status = WMAX (state, instr); break; | |
3619 | case 0x002: case 0x102: case 0x202: case 0x302: | |
3620 | case 0x402: case 0x502: case 0x602: case 0x702: | |
3621 | status = WALIGNI (instr); break; | |
3622 | case 0x01a: case 0x11a: case 0x21a: case 0x31a: | |
3623 | case 0x41a: case 0x51a: case 0x61a: case 0x71a: | |
3624 | case 0x81a: case 0x91a: case 0xa1a: case 0xb1a: | |
3625 | case 0xc1a: case 0xd1a: case 0xe1a: case 0xf1a: | |
3626 | status = WSUB (state, instr); break; | |
3627 | case 0x01e: case 0x11e: case 0x21e: case 0x31e: | |
3628 | case 0x41e: case 0x51e: case 0x61e: case 0x71e: | |
3629 | case 0x81e: case 0x91e: case 0xa1e: case 0xb1e: | |
3630 | case 0xc1e: case 0xd1e: case 0xe1e: case 0xf1e: | |
3631 | status = WSHUFH (instr); break; | |
3632 | case 0x018: case 0x118: case 0x218: case 0x318: | |
3633 | case 0x418: case 0x518: case 0x618: case 0x718: | |
3634 | case 0x818: case 0x918: case 0xa18: case 0xb18: | |
3635 | case 0xc18: case 0xd18: case 0xe18: case 0xf18: | |
3636 | status = WADD (state, instr); break; | |
3637 | case 0x008: case 0x108: case 0x208: case 0x308: | |
3638 | case 0x408: case 0x508: case 0x608: case 0x708: | |
3639 | case 0x808: case 0x908: case 0xa08: case 0xb08: | |
3640 | case 0xc08: case 0xd08: case 0xe08: case 0xf08: | |
3641 | status = WPACK (state, instr); break; | |
3642 | case 0x201: case 0x203: case 0x205: case 0x207: | |
3643 | case 0x209: case 0x20b: case 0x20d: case 0x20f: | |
3644 | case 0x211: case 0x213: case 0x215: case 0x217: | |
3645 | case 0x219: case 0x21b: case 0x21d: case 0x21f: | |
3646 | switch (BITS (16, 19)) | |
3647 | { | |
3648 | case 0x0: status = TMIA (state, instr); break; | |
3649 | case 0x8: status = TMIAPH (state, instr); break; | |
3650 | case 0xc: | |
3651 | case 0xd: | |
3652 | case 0xe: | |
3653 | case 0xf: status = TMIAxy (state, instr); break; | |
3654 | default: break; | |
3655 | } | |
3656 | break; | |
3657 | default: | |
3658 | break; | |
3659 | } | |
3660 | return status; | |
3661 | } | |
3662 | ||
3663 | /* Process a possibly Intel(r) Wireless MMX(tm) technology instruction. | |
3664 | Return true if the instruction was handled. */ | |
3665 | ||
3666 | int | |
3667 | ARMul_HandleIwmmxt (ARMul_State * state, ARMword instr) | |
3668 | { | |
3669 | int status = ARMul_BUSY; | |
3670 | ||
3671 | if (BITS (24, 27) == 0xe) | |
3672 | { | |
3673 | status = Process_Instruction (state, instr); | |
3674 | } | |
3675 | else if (BITS (25, 27) == 0x6) | |
3676 | { | |
3677 | if (BITS (4, 11) == 0x0 && BITS (20, 24) == 0x4) | |
3678 | status = TMCRR (state, instr); | |
3679 | else if (BITS (9, 11) == 0x0) | |
3680 | { | |
3681 | if (BIT (20) == 0x0) | |
3682 | status = WSTR (state, instr); | |
3683 | else if (BITS (20, 24) == 0x5) | |
3684 | status = TMRRC (state, instr); | |
3685 | else | |
3686 | status = WLDR (state, instr); | |
3687 | } | |
3688 | } | |
3689 | ||
3690 | if (status == ARMul_CANT) | |
3691 | { | |
3692 | /* If the instruction was a recognised but illegal, | |
3693 | perform the abort here rather than returning false. | |
3694 | If we return false then ARMul_MRC may be called which | |
3695 | will still abort, but which also perform the register | |
3696 | transfer... */ | |
3697 | ARMul_Abort (state, ARMul_UndefinedInstrV); | |
3698 | status = ARMul_DONE; | |
3699 | } | |
3700 | ||
3701 | return status == ARMul_DONE; | |
3702 | } | |
3703 | ||
3704 | int | |
3705 | Fetch_Iwmmxt_Register (unsigned int regnum, unsigned char * memory) | |
3706 | { | |
3707 | if (regnum >= 16) | |
3708 | { | |
3709 | memcpy (memory, wC + (regnum - 16), sizeof wC [0]); | |
3710 | return sizeof wC [0]; | |
3711 | } | |
3712 | else | |
3713 | { | |
3714 | memcpy (memory, wR + regnum, sizeof wR [0]); | |
3715 | return sizeof wR [0]; | |
3716 | } | |
3717 | } | |
3718 | ||
3719 | int | |
3720 | Store_Iwmmxt_Register (unsigned int regnum, unsigned char * memory) | |
3721 | { | |
3722 | if (regnum >= 16) | |
3723 | { | |
3724 | memcpy (wC + (regnum - 16), memory, sizeof wC [0]); | |
3725 | return sizeof wC [0]; | |
3726 | } | |
3727 | else | |
3728 | { | |
3729 | memcpy (wR + regnum, memory, sizeof wR [0]); | |
3730 | return sizeof wR [0]; | |
3731 | } | |
3732 | } |