1// -*- mode:c++ -*-
2
3// Copyright (c) 2010 ARM Limited
4// All rights reserved
5//
6// The license below extends only to copyright in the software and shall
7// not be construed as granting a license to any other intellectual
8// property including but not limited to intellectual property relating
9// to a hardware implementation of the functionality of the software
10// licensed hereunder. You may use the software subject to the license
11// terms below provided that you ensure that this notice is replicated
12// unmodified and in its entirety in all distributions of the software,
13// modified or unmodified, in source code or in binary form.
14//
15// Redistribution and use in source and binary forms, with or without
16// modification, are permitted provided that the following conditions are
17// met: redistributions of source code must retain the above copyright
18// notice, this list of conditions and the following disclaimer;
19// redistributions in binary form must reproduce the above copyright
20// notice, this list of conditions and the following disclaimer in the
21// documentation and/or other materials provided with the distribution;
22// neither the name of the copyright holders nor the names of its
23// contributors may be used to endorse or promote products derived from
24// this software without specific prior written permission.
25//
26// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
27// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
28// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
29// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
30// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
31// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
32// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
33// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
34// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
35// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
36// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37//
38// Authors: Gabe Black
39
40let {{
41
42 header_output = ""
43 decoder_output = ""
44 exec_output = ""
45
46 calcGECode = '''
47 CondCodes = insertBits(CondCodes, 19, 16, resTemp);
48 '''
49
50 calcQCode = '''
51 CondCodes = CondCodes | ((resTemp & 1) << 27);
52 '''
53
54 calcCcCode = '''
55 uint16_t _ic, _iv, _iz, _in;
56 _in = (resTemp >> %(negBit)d) & 1;
57 _iz = (resTemp == 0);
58 _iv = %(ivValue)s & 1;
59 _ic = %(icValue)s & 1;
60
61 CondCodes = _in << 31 | _iz << 30 | _ic << 29 | _iv << 28 |
62 (CondCodes & 0x0FFFFFFF);
63
64 DPRINTF(Arm, "(in, iz, ic, iv) = (%%d, %%d, %%d, %%d)\\n",
65 _in, _iz, _ic, _iv);
66 '''
67
68 # Dict of code to set the carry flag. (imm, reg, reg-reg)
69 oldC = 'CondCodes<29:>'
70 oldV = 'CondCodes<28:>'
71 carryCode = {
72 "none": (oldC, oldC, oldC),
73 "llbit": (oldC, oldC, oldC),
74 "saturate": ('0', '0', '0'),
75 "overflow": ('0', '0', '0'),
76 "ge": ('0', '0', '0'),
77 "add": ('findCarry(32, resTemp, Op1, secondOp)',
78 'findCarry(32, resTemp, Op1, secondOp)',
79 'findCarry(32, resTemp, Op1, secondOp)'),
80 "sub": ('findCarry(32, resTemp, Op1, ~secondOp)',
81 'findCarry(32, resTemp, Op1, ~secondOp)',
82 'findCarry(32, resTemp, Op1, ~secondOp)'),
83 "rsb": ('findCarry(32, resTemp, secondOp, ~Op1)',
84 'findCarry(32, resTemp, secondOp, ~Op1)',
85 'findCarry(32, resTemp, secondOp, ~Op1)'),
86 "logic": ('(rotC ? bits(secondOp, 31) : %s)' % oldC,
87 'shift_carry_imm(Op2, shiftAmt, shiftType, %s)' % oldC,
88 'shift_carry_rs(Op2, Shift<7:0>, shiftType, %s)' % oldC)
89 }
90 # Dict of code to set the overflow flag.
91 overflowCode = {
92 "none": oldV,
93 "llbit": oldV,
94 "saturate": '0',
95 "overflow": '0',
96 "ge": '0',
97 "add": 'findOverflow(32, resTemp, Op1, secondOp)',
98 "sub": 'findOverflow(32, resTemp, Op1, ~secondOp)',
99 "rsb": 'findOverflow(32, resTemp, secondOp, ~Op1)',
100 "logic": oldV
101 }
102
103 secondOpRe = re.compile("secondOp")
104 immOp2 = "imm"
105 regOp2 = "shift_rm_imm(Op2, shiftAmt, shiftType, CondCodes<29:>)"
106 regRegOp2 = "shift_rm_rs(Op2, Shift<7:0>, shiftType, CondCodes<29:>)"
107
108 def buildImmDataInst(mnem, code, flagType = "logic", suffix = "Imm", \
109 buildCc = True, buildNonCc = True, instFlags = []):
110 cCode = carryCode[flagType]
111 vCode = overflowCode[flagType]
112 negBit = 31
113 if flagType == "llbit":
114 negBit = 63
115 if flagType == "saturate":
116 immCcCode = calcQCode
117 elif flagType == "ge":
118 immCcCode = calcGECode
119 else:
120 immCcCode = calcCcCode % {
121 "icValue": secondOpRe.sub(immOp2, cCode[0]),
122 "ivValue": secondOpRe.sub(immOp2, vCode),
123 "negBit": negBit
124 }
125 immCode = secondOpRe.sub(immOp2, code)
126 immIop = InstObjParams(mnem, mnem.capitalize() + suffix, "DataImmOp",
127 {"code" : immCode,
128 "predicate_test": predicateTest}, instFlags)
129 immIopCc = InstObjParams(mnem + "s", mnem.capitalize() + suffix + "Cc",
130 "DataImmOp",
131 {"code" : immCode + immCcCode,
132 "predicate_test": condPredicateTest}, instFlags)
133
134 def subst(iop):
135 global header_output, decoder_output, exec_output
136 header_output += DataImmDeclare.subst(iop)
137 decoder_output += DataImmConstructor.subst(iop)
138 exec_output += PredOpExecute.subst(iop)
139
140 if buildNonCc:
141 subst(immIop)
142 if buildCc:
143 subst(immIopCc)
144
145 def buildRegDataInst(mnem, code, flagType = "logic", suffix = "Reg", \
146 buildCc = True, buildNonCc = True, instFlags = []):
147 cCode = carryCode[flagType]
148 vCode = overflowCode[flagType]
149 negBit = 31
150 if flagType == "llbit":
151 negBit = 63
152 if flagType == "saturate":
153 regCcCode = calcQCode
154 elif flagType == "ge":
155 regCcCode = calcGECode
156 else:
157 regCcCode = calcCcCode % {
158 "icValue": secondOpRe.sub(regOp2, cCode[1]),
159 "ivValue": secondOpRe.sub(regOp2, vCode),
160 "negBit": negBit
161 }
162 regCode = secondOpRe.sub(regOp2, code)
163 regIop = InstObjParams(mnem, mnem.capitalize() + suffix, "DataRegOp",
164 {"code" : regCode,
165 "predicate_test": predicateTest}, instFlags)
166 regIopCc = InstObjParams(mnem + "s", mnem.capitalize() + suffix + "Cc",
167 "DataRegOp",
168 {"code" : regCode + regCcCode,
169 "predicate_test": condPredicateTest},
170 instFlags)
171
172 def subst(iop):
173 global header_output, decoder_output, exec_output
174 header_output += DataRegDeclare.subst(iop)
175 decoder_output += DataRegConstructor.subst(iop)
176 exec_output += PredOpExecute.subst(iop)
177
178 if buildNonCc:
179 subst(regIop)
180 if buildCc:
181 subst(regIopCc)
182
183 def buildRegRegDataInst(mnem, code, flagType = "logic", \
184 suffix = "RegReg", \
185 buildCc = True, buildNonCc = True):
186 cCode = carryCode[flagType]
187 vCode = overflowCode[flagType]
188 negBit = 31
189 if flagType == "llbit":
190 negBit = 63
191 if flagType == "saturate":
192 regRegCcCode = calcQCode
193 elif flagType == "ge":
194 regRegCcCode = calcGECode
195 else:
196 regRegCcCode = calcCcCode % {
197 "icValue": secondOpRe.sub(regRegOp2, cCode[2]),
198 "ivValue": secondOpRe.sub(regRegOp2, vCode),
199 "negBit": negBit
200 }
201 regRegCode = secondOpRe.sub(regRegOp2, code)
202 regRegIop = InstObjParams(mnem, mnem.capitalize() + suffix,
203 "DataRegRegOp",
204 {"code" : regRegCode,
205 "predicate_test": predicateTest})
206 regRegIopCc = InstObjParams(mnem + "s",
207 mnem.capitalize() + suffix + "Cc",
208 "DataRegRegOp",
209 {"code" : regRegCode + regRegCcCode,
210 "predicate_test": condPredicateTest})
211
212 def subst(iop):
213 global header_output, decoder_output, exec_output
214 header_output += DataRegRegDeclare.subst(iop)
215 decoder_output += DataRegRegConstructor.subst(iop)
216 exec_output += PredOpExecute.subst(iop)
217
218 if buildNonCc:
219 subst(regRegIop)
220 if buildCc:
221 subst(regRegIopCc)
222
223 def buildDataInst(mnem, code, flagType = "logic", \
224 aiw = True, regRegAiw = True,
225 subsPcLr = True):
226 regRegCode = instCode = code
227 if aiw:
228 instCode = "AIW" + instCode
229 if regRegAiw:
230 regRegCode = "AIW" + regRegCode
231
232 buildImmDataInst(mnem, instCode, flagType)
233 buildRegDataInst(mnem, instCode, flagType)
234 buildRegRegDataInst(mnem, regRegCode, flagType)
235 if subsPcLr:
236 code += '''
237 SCTLR sctlr = Sctlr;
238 uint32_t newCpsr =
239 cpsrWriteByInstr(Cpsr | CondCodes, Spsr, 0xF, true, sctlr.nmfi);
240 Cpsr = ~CondCodesMask & newCpsr;
241 CondCodes = CondCodesMask & newCpsr;
|
262 (op1 ? secondOp : -secondOp);
263 ''')
264 buildDataInst("adc", "Dest = resTemp = Op1 + secondOp + %s;" % oldC, "add")
265 buildDataInst("sbc", "Dest = resTemp = Op1 - secondOp - !%s;" % oldC, "sub")
266 buildDataInst("rsc", "Dest = resTemp = secondOp - Op1 - !%s;" % oldC, "rsb")
267 buildDataInst("tst", "resTemp = Op1 & secondOp;", aiw = False)
268 buildDataInst("teq", "resTemp = Op1 ^ secondOp;", aiw = False)
269 buildDataInst("cmp", "resTemp = Op1 - secondOp;", "sub", aiw = False)
270 buildDataInst("cmn", "resTemp = Op1 + secondOp;", "add", aiw = False)
271 buildDataInst("orr", "Dest = resTemp = Op1 | secondOp;")
272 buildDataInst("orn", "Dest = resTemp = Op1 | ~secondOp;", aiw = False)
273 buildDataInst("mov", "Dest = resTemp = secondOp;", regRegAiw = False)
274 buildDataInst("bic", "Dest = resTemp = Op1 & ~secondOp;")
275 buildDataInst("mvn", "Dest = resTemp = ~secondOp;")
276 buildDataInst("movt",
277 "Dest = resTemp = insertBits(Op1, 31, 16, secondOp);",
278 aiw = False)
279
280 buildRegDataInst("qadd", '''
281 int32_t midRes;
282 resTemp = saturateOp<32>(midRes, Op1.sw, Op2.sw);
283 Dest = midRes;
284 ''', flagType="saturate", buildNonCc=False)
285 buildRegDataInst("qadd16", '''
286 int32_t midRes;
287 for (unsigned i = 0; i < 2; i++) {
288 int high = (i + 1) * 16 - 1;
289 int low = i * 16;
290 int64_t arg1 = sext<16>(bits(Op1.sw, high, low));
291 int64_t arg2 = sext<16>(bits(Op2.sw, high, low));
292 saturateOp<16>(midRes, arg1, arg2);
293 replaceBits(resTemp, high, low, midRes);
294 }
295 Dest = resTemp;
296 ''', flagType="none", buildCc=False)
297 buildRegDataInst("qadd8", '''
298 int32_t midRes;
299 for (unsigned i = 0; i < 4; i++) {
300 int high = (i + 1) * 8 - 1;
301 int low = i * 8;
302 int64_t arg1 = sext<8>(bits(Op1.sw, high, low));
303 int64_t arg2 = sext<8>(bits(Op2.sw, high, low));
304 saturateOp<8>(midRes, arg1, arg2);
305 replaceBits(resTemp, high, low, midRes);
306 }
307 Dest = resTemp;
308 ''', flagType="none", buildCc=False)
309 buildRegDataInst("qdadd", '''
310 int32_t midRes;
311 resTemp = saturateOp<32>(midRes, Op2.sw, Op2.sw) |
312 saturateOp<32>(midRes, Op1.sw, midRes);
313 Dest = midRes;
314 ''', flagType="saturate", buildNonCc=False)
315 buildRegDataInst("qsub", '''
316 int32_t midRes;
317 resTemp = saturateOp<32>(midRes, Op1.sw, Op2.sw, true);
318 Dest = midRes;
319 ''', flagType="saturate")
320 buildRegDataInst("qsub16", '''
321 int32_t midRes;
322 for (unsigned i = 0; i < 2; i++) {
323 int high = (i + 1) * 16 - 1;
324 int low = i * 16;
325 int64_t arg1 = sext<16>(bits(Op1.sw, high, low));
326 int64_t arg2 = sext<16>(bits(Op2.sw, high, low));
327 saturateOp<16>(midRes, arg1, arg2, true);
328 replaceBits(resTemp, high, low, midRes);
329 }
330 Dest = resTemp;
331 ''', flagType="none", buildCc=False)
332 buildRegDataInst("qsub8", '''
333 int32_t midRes;
334 for (unsigned i = 0; i < 4; i++) {
335 int high = (i + 1) * 8 - 1;
336 int low = i * 8;
337 int64_t arg1 = sext<8>(bits(Op1.sw, high, low));
338 int64_t arg2 = sext<8>(bits(Op2.sw, high, low));
339 saturateOp<8>(midRes, arg1, arg2, true);
340 replaceBits(resTemp, high, low, midRes);
341 }
342 Dest = resTemp;
343 ''', flagType="none", buildCc=False)
344 buildRegDataInst("qdsub", '''
345 int32_t midRes;
346 resTemp = saturateOp<32>(midRes, Op2.sw, Op2.sw) |
347 saturateOp<32>(midRes, Op1.sw, midRes, true);
348 Dest = midRes;
349 ''', flagType="saturate", buildNonCc=False)
350 buildRegDataInst("qasx", '''
351 int32_t midRes;
352 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
353 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
354 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
355 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
356 saturateOp<16>(midRes, arg1Low, arg2High, true);
357 replaceBits(resTemp, 15, 0, midRes);
358 saturateOp<16>(midRes, arg1High, arg2Low);
359 replaceBits(resTemp, 31, 16, midRes);
360 Dest = resTemp;
361 ''', flagType="none", buildCc=False)
362 buildRegDataInst("qsax", '''
363 int32_t midRes;
364 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
365 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
366 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
367 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
368 saturateOp<16>(midRes, arg1Low, arg2High);
369 replaceBits(resTemp, 15, 0, midRes);
370 saturateOp<16>(midRes, arg1High, arg2Low, true);
371 replaceBits(resTemp, 31, 16, midRes);
372 Dest = resTemp;
373 ''', flagType="none", buildCc=False)
374
375 buildRegDataInst("sadd8", '''
376 uint32_t geBits = 0;
377 resTemp = 0;
378 for (unsigned i = 0; i < 4; i++) {
379 int high = (i + 1) * 8 - 1;
380 int low = i * 8;
381 int32_t midRes = sext<8>(bits(Op1.sw, high, low)) +
382 sext<8>(bits(Op2.sw, high, low));
383 replaceBits(resTemp, high, low, midRes);
384 if (midRes >= 0) {
385 geBits = geBits | (1 << i);
386 }
387 }
388 Dest = resTemp;
389 resTemp = geBits;
390 ''', flagType="ge", buildNonCc=False)
391 buildRegDataInst("sadd16", '''
392 uint32_t geBits = 0;
393 resTemp = 0;
394 for (unsigned i = 0; i < 2; i++) {
395 int high = (i + 1) * 16 - 1;
396 int low = i * 16;
397 int32_t midRes = sext<16>(bits(Op1.sw, high, low)) +
398 sext<16>(bits(Op2.sw, high, low));
399 replaceBits(resTemp, high, low, midRes);
400 if (midRes >= 0) {
401 geBits = geBits | (0x3 << (i * 2));
402 }
403 }
404 Dest = resTemp;
405 resTemp = geBits;
406 ''', flagType="ge", buildNonCc=False)
407
408 buildRegDataInst("ssub8", '''
409 uint32_t geBits = 0;
410 resTemp = 0;
411 for (unsigned i = 0; i < 4; i++) {
412 int high = (i + 1) * 8 - 1;
413 int low = i * 8;
414 int32_t midRes = sext<8>(bits(Op1.sw, high, low)) -
415 sext<8>(bits(Op2.sw, high, low));
416 replaceBits(resTemp, high, low, midRes);
417 if (midRes >= 0) {
418 geBits = geBits | (1 << i);
419 }
420 }
421 Dest = resTemp;
422 resTemp = geBits;
423 ''', flagType="ge", buildNonCc=False)
424 buildRegDataInst("ssub16", '''
425 uint32_t geBits = 0;
426 resTemp = 0;
427 for (unsigned i = 0; i < 2; i++) {
428 int high = (i + 1) * 16 - 1;
429 int low = i * 16;
430 int32_t midRes = sext<16>(bits(Op1.sw, high, low)) -
431 sext<16>(bits(Op2.sw, high, low));
432 replaceBits(resTemp, high, low, midRes);
433 if (midRes >= 0) {
434 geBits = geBits | (0x3 << (i * 2));
435 }
436 }
437 Dest = resTemp;
438 resTemp = geBits;
439 ''', flagType="ge", buildNonCc=False)
440 buildRegDataInst("sasx", '''
441 int32_t midRes, geBits = 0;
442 resTemp = 0;
443 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
444 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
445 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
446 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
447 midRes = arg1Low - arg2High;
448 if (midRes >= 0) {
449 geBits = geBits | 0x3;
450 }
451 replaceBits(resTemp, 15, 0, midRes);
452 midRes = arg1High + arg2Low;
453 if (midRes >= 0) {
454 geBits = geBits | 0xc;
455 }
456 replaceBits(resTemp, 31, 16, midRes);
457 Dest = resTemp;
458 resTemp = geBits;
459 ''', flagType="ge", buildNonCc=True)
460 buildRegDataInst("ssax", '''
461 int32_t midRes, geBits = 0;
462 resTemp = 0;
463 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
464 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
465 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
466 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
467 midRes = arg1Low + arg2High;
468 if (midRes >= 0) {
469 geBits = geBits | 0x3;
470 }
471 replaceBits(resTemp, 15, 0, midRes);
472 midRes = arg1High - arg2Low;
473 if (midRes >= 0) {
474 geBits = geBits | 0xc;
475 }
476 replaceBits(resTemp, 31, 16, midRes);
477 Dest = resTemp;
478 resTemp = geBits;
479 ''', flagType="ge", buildNonCc=True)
480
481 buildRegDataInst("shadd8", '''
482 resTemp = 0;
483 for (unsigned i = 0; i < 4; i++) {
484 int high = (i + 1) * 8 - 1;
485 int low = i * 8;
486 int32_t midRes =
487 (uint64_t)(sext<8>(bits(Op1.sw, high, low)) +
488 sext<8>(bits(Op2.sw, high, low))) >> 1;
489 replaceBits(resTemp, high, low, midRes);
490 }
491 Dest = resTemp;
492 ''', flagType="none", buildCc=False)
493 buildRegDataInst("shadd16", '''
494 resTemp = 0;
495 for (unsigned i = 0; i < 2; i++) {
496 int high = (i + 1) * 16 - 1;
497 int low = i * 16;
498 int32_t midRes =
499 (uint64_t)(sext<16>(bits(Op1.sw, high, low)) +
500 sext<16>(bits(Op2.sw, high, low))) >> 1;
501 replaceBits(resTemp, high, low, midRes);
502 }
503 Dest = resTemp;
504 ''', flagType="none", buildCc=False)
505 buildRegDataInst("shsub8", '''
506 resTemp = 0;
507 for (unsigned i = 0; i < 4; i++) {
508 int high = (i + 1) * 8 - 1;
509 int low = i * 8;
510 int32_t midRes =
511 (uint64_t)(sext<8>(bits(Op1.sw, high, low)) -
512 sext<8>(bits(Op2.sw, high, low))) >> 1;
513 replaceBits(resTemp, high, low, midRes);
514 }
515 Dest = resTemp;
516 ''', flagType="none", buildCc=False)
517 buildRegDataInst("shsub16", '''
518 resTemp = 0;
519 for (unsigned i = 0; i < 2; i++) {
520 int high = (i + 1) * 16 - 1;
521 int low = i * 16;
522 int32_t midRes =
523 (uint64_t)(sext<16>(bits(Op1.sw, high, low)) -
524 sext<16>(bits(Op2.sw, high, low))) >> 1;
525 replaceBits(resTemp, high, low, midRes);
526 }
527 Dest = resTemp;
528 ''', flagType="none", buildCc=False)
529 buildRegDataInst("shasx", '''
530 int32_t midRes;
531 resTemp = 0;
532 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
533 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
534 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
535 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
536 midRes = (uint64_t)(arg1Low - arg2High) >> 1;
537 replaceBits(resTemp, 15, 0, midRes);
538 midRes = (arg1High + arg2Low) >> 1;
539 replaceBits(resTemp, 31, 16, midRes);
540 Dest = resTemp;
541 ''', flagType="none", buildCc=True)
542 buildRegDataInst("shsax", '''
543 int32_t midRes;
544 resTemp = 0;
545 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
546 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
547 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
548 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
549 midRes = (uint64_t)(arg1Low + arg2High) >> 1;
550 replaceBits(resTemp, 15, 0, midRes);
551 midRes = (uint64_t)(arg1High - arg2Low) >> 1;
552 replaceBits(resTemp, 31, 16, midRes);
553 Dest = resTemp;
554 ''', flagType="none", buildCc=True)
555
556 buildRegDataInst("uqadd16", '''
557 uint32_t midRes;
558 for (unsigned i = 0; i < 2; i++) {
559 int high = (i + 1) * 16 - 1;
560 int low = i * 16;
561 uint64_t arg1 = bits(Op1, high, low);
562 uint64_t arg2 = bits(Op2, high, low);
563 uSaturateOp<16>(midRes, arg1, arg2);
564 replaceBits(resTemp, high, low, midRes);
565 }
566 Dest = resTemp;
567 ''', flagType="none", buildCc=False)
568 buildRegDataInst("uqadd8", '''
569 uint32_t midRes;
570 for (unsigned i = 0; i < 4; i++) {
571 int high = (i + 1) * 8 - 1;
572 int low = i * 8;
573 uint64_t arg1 = bits(Op1, high, low);
574 uint64_t arg2 = bits(Op2, high, low);
575 uSaturateOp<8>(midRes, arg1, arg2);
576 replaceBits(resTemp, high, low, midRes);
577 }
578 Dest = resTemp;
579 ''', flagType="none", buildCc=False)
580 buildRegDataInst("uqsub16", '''
581 uint32_t midRes;
582 for (unsigned i = 0; i < 2; i++) {
583 int high = (i + 1) * 16 - 1;
584 int low = i * 16;
585 uint64_t arg1 = bits(Op1, high, low);
586 uint64_t arg2 = bits(Op2, high, low);
587 uSaturateOp<16>(midRes, arg1, arg2, true);
588 replaceBits(resTemp, high, low, midRes);
589 }
590 Dest = resTemp;
591 ''', flagType="none", buildCc=False)
592 buildRegDataInst("uqsub8", '''
593 uint32_t midRes;
594 for (unsigned i = 0; i < 4; i++) {
595 int high = (i + 1) * 8 - 1;
596 int low = i * 8;
597 uint64_t arg1 = bits(Op1, high, low);
598 uint64_t arg2 = bits(Op2, high, low);
599 uSaturateOp<8>(midRes, arg1, arg2, true);
600 replaceBits(resTemp, high, low, midRes);
601 }
602 Dest = resTemp;
603 ''', flagType="none", buildCc=False)
604 buildRegDataInst("uqasx", '''
605 uint32_t midRes;
606 uint64_t arg1Low = bits(Op1.sw, 15, 0);
607 uint64_t arg1High = bits(Op1.sw, 31, 16);
608 uint64_t arg2Low = bits(Op2.sw, 15, 0);
609 uint64_t arg2High = bits(Op2.sw, 31, 16);
610 uSaturateOp<16>(midRes, arg1Low, arg2High, true);
611 replaceBits(resTemp, 15, 0, midRes);
612 uSaturateOp<16>(midRes, arg1High, arg2Low);
613 replaceBits(resTemp, 31, 16, midRes);
614 Dest = resTemp;
615 ''', flagType="none", buildCc=False)
616 buildRegDataInst("uqsax", '''
617 uint32_t midRes;
618 uint64_t arg1Low = bits(Op1.sw, 15, 0);
619 uint64_t arg1High = bits(Op1.sw, 31, 16);
620 uint64_t arg2Low = bits(Op2.sw, 15, 0);
621 uint64_t arg2High = bits(Op2.sw, 31, 16);
622 uSaturateOp<16>(midRes, arg1Low, arg2High);
623 replaceBits(resTemp, 15, 0, midRes);
624 uSaturateOp<16>(midRes, arg1High, arg2Low, true);
625 replaceBits(resTemp, 31, 16, midRes);
626 Dest = resTemp;
627 ''', flagType="none", buildCc=False)
628
629 buildRegDataInst("uadd16", '''
630 uint32_t geBits = 0;
631 resTemp = 0;
632 for (unsigned i = 0; i < 2; i++) {
633 int high = (i + 1) * 16 - 1;
634 int low = i * 16;
635 int32_t midRes = bits(Op1, high, low) +
636 bits(Op2, high, low);
637 if (midRes >= 0x10000) {
638 geBits = geBits | (0x3 << (i * 2));
639 }
640 replaceBits(resTemp, high, low, midRes);
641 }
642 Dest = resTemp;
643 resTemp = geBits;
644 ''', flagType="ge", buildNonCc=False)
645 buildRegDataInst("uadd8", '''
646 uint32_t geBits = 0;
647 resTemp = 0;
648 for (unsigned i = 0; i < 4; i++) {
649 int high = (i + 1) * 8 - 1;
650 int low = i * 8;
651 int32_t midRes = bits(Op1, high, low) +
652 bits(Op2, high, low);
653 if (midRes >= 0x100) {
654 geBits = geBits | (1 << i);
655 }
656 replaceBits(resTemp, high, low, midRes);
657 }
658 Dest = resTemp;
659 resTemp = geBits;
660 ''', flagType="ge", buildNonCc=False)
661 buildRegDataInst("usub16", '''
662 uint32_t geBits = 0;
663 resTemp = 0;
664 for (unsigned i = 0; i < 2; i++) {
665 int high = (i + 1) * 16 - 1;
666 int low = i * 16;
667 int32_t midRes = bits(Op1, high, low) -
668 bits(Op2, high, low);
669 if (midRes >= 0) {
670 geBits = geBits | (0x3 << (i * 2));
671 }
672 replaceBits(resTemp, high, low, midRes);
673 }
674 Dest = resTemp;
675 resTemp = geBits;
676 ''', flagType="ge", buildNonCc=False)
677 buildRegDataInst("usub8", '''
678 uint32_t geBits = 0;
679 resTemp = 0;
680 for (unsigned i = 0; i < 4; i++) {
681 int high = (i + 1) * 8 - 1;
682 int low = i * 8;
683 int32_t midRes = bits(Op1, high, low) -
684 bits(Op2, high, low);
685 if (midRes >= 0) {
686 geBits = geBits | (1 << i);
687 }
688 replaceBits(resTemp, high, low, midRes);
689 }
690 Dest = resTemp;
691 resTemp = geBits;
692 ''', flagType="ge", buildNonCc=False)
693 buildRegDataInst("uasx", '''
694 int32_t midRes, geBits = 0;
695 resTemp = 0;
696 int64_t arg1Low = bits(Op1.sw, 15, 0);
697 int64_t arg1High = bits(Op1.sw, 31, 16);
698 int64_t arg2Low = bits(Op2.sw, 15, 0);
699 int64_t arg2High = bits(Op2.sw, 31, 16);
700 midRes = arg1Low - arg2High;
701 if (midRes >= 0) {
702 geBits = geBits | 0x3;
703 }
704 replaceBits(resTemp, 15, 0, midRes);
705 midRes = arg1High + arg2Low;
706 if (midRes >= 0x10000) {
707 geBits = geBits | 0xc;
708 }
709 replaceBits(resTemp, 31, 16, midRes);
710 Dest = resTemp;
711 resTemp = geBits;
712 ''', flagType="ge", buildNonCc=False)
713 buildRegDataInst("usax", '''
714 int32_t midRes, geBits = 0;
715 resTemp = 0;
716 int64_t arg1Low = bits(Op1.sw, 15, 0);
717 int64_t arg1High = bits(Op1.sw, 31, 16);
718 int64_t arg2Low = bits(Op2.sw, 15, 0);
719 int64_t arg2High = bits(Op2.sw, 31, 16);
720 midRes = arg1Low + arg2High;
721 if (midRes >= 0x10000) {
722 geBits = geBits | 0x3;
723 }
724 replaceBits(resTemp, 15, 0, midRes);
725 midRes = arg1High - arg2Low;
726 if (midRes >= 0) {
727 geBits = geBits | 0xc;
728 }
729 replaceBits(resTemp, 31, 16, midRes);
730 Dest = resTemp;
731 resTemp = geBits;
732 ''', flagType="ge", buildNonCc=False)
733
734 buildRegDataInst("uhadd16", '''
735 resTemp = 0;
736 for (unsigned i = 0; i < 2; i++) {
737 int high = (i + 1) * 16 - 1;
738 int low = i * 16;
739 int32_t midRes = (bits(Op1, high, low) +
740 bits(Op2, high, low)) >> 1;
741 replaceBits(resTemp, high, low, midRes);
742 }
743 Dest = resTemp;
744 ''', flagType="none", buildCc=False)
745 buildRegDataInst("uhadd8", '''
746 resTemp = 0;
747 for (unsigned i = 0; i < 4; i++) {
748 int high = (i + 1) * 8 - 1;
749 int low = i * 8;
750 int32_t midRes = (bits(Op1, high, low) +
751 bits(Op2, high, low)) >> 1;
752 replaceBits(resTemp, high, low, midRes);
753 }
754 Dest = resTemp;
755 ''', flagType="none", buildCc=False)
756 buildRegDataInst("uhsub16", '''
757 resTemp = 0;
758 for (unsigned i = 0; i < 2; i++) {
759 int high = (i + 1) * 16 - 1;
760 int low = i * 16;
761 int32_t midRes = (bits(Op1, high, low) -
762 bits(Op2, high, low)) >> 1;
763 replaceBits(resTemp, high, low, midRes);
764 }
765 Dest = resTemp;
766 ''', flagType="none", buildCc=False)
767 buildRegDataInst("uhsub8", '''
768 resTemp = 0;
769 for (unsigned i = 0; i < 4; i++) {
770 int high = (i + 1) * 8 - 1;
771 int low = i * 8;
772 int32_t midRes = (bits(Op1, high, low) -
773 bits(Op2, high, low)) >> 1;
774 replaceBits(resTemp, high, low, midRes);
775 }
776 Dest = resTemp;
777 ''', flagType="none", buildCc=False)
778 buildRegDataInst("uhasx", '''
779 int32_t midRes;
780 resTemp = 0;
781 int64_t arg1Low = bits(Op1.sw, 15, 0);
782 int64_t arg1High = bits(Op1.sw, 31, 16);
783 int64_t arg2Low = bits(Op2.sw, 15, 0);
784 int64_t arg2High = bits(Op2.sw, 31, 16);
785 midRes = (arg1Low - arg2High) >> 1;
786 replaceBits(resTemp, 15, 0, midRes);
787 midRes = (arg1High + arg2Low) >> 1;
788 replaceBits(resTemp, 31, 16, midRes);
789 Dest = resTemp;
790 ''', flagType="none", buildCc=False)
791 buildRegDataInst("uhsax", '''
792 int32_t midRes;
793 resTemp = 0;
794 int64_t arg1Low = bits(Op1.sw, 15, 0);
795 int64_t arg1High = bits(Op1.sw, 31, 16);
796 int64_t arg2Low = bits(Op2.sw, 15, 0);
797 int64_t arg2High = bits(Op2.sw, 31, 16);
798 midRes = (arg1Low + arg2High) >> 1;
799 replaceBits(resTemp, 15, 0, midRes);
800 midRes = (arg1High - arg2Low) >> 1;
801 replaceBits(resTemp, 31, 16, midRes);
802 Dest = resTemp;
803 ''', flagType="none", buildCc=False)
804
805 buildRegDataInst("pkhbt", '''
806 uint32_t resTemp = 0;
807 uint16_t arg1Low = bits(Op1, 15, 0);
808 uint16_t arg2High = bits(secondOp, 31, 16);
809 replaceBits(resTemp, 15, 0, arg1Low);
810 replaceBits(resTemp, 31, 16, arg2High);
811 Dest = resTemp;
812 ''', flagType="none", buildCc=False)
813 buildRegDataInst("pkhtb", '''
814 uint32_t resTemp = 0;
815 uint16_t arg1High = bits(Op1, 31, 16);
816 uint16_t arg2Low = bits(secondOp, 15, 0);
817 replaceBits(resTemp, 15, 0, arg2Low);
818 replaceBits(resTemp, 31, 16, arg1High);
819 Dest = resTemp;
820 ''', flagType="none", buildCc=False)
821}};
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