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;
242 '''
243 buildImmDataInst(mnem + 's', code, flagType,
244 suffix = "ImmPclr", buildCc = False,
245 instFlags = ["IsSerializeAfter","IsNonSpeculative"])
246 buildRegDataInst(mnem + 's', code, flagType,
247 suffix = "RegPclr", buildCc = False,
248 instFlags = ["IsSerializeAfter","IsNonSpeculative"])
249
250 buildDataInst("and", "Dest = resTemp = Op1 & secondOp;")
251 buildDataInst("eor", "Dest = resTemp = Op1 ^ secondOp;")
252 buildDataInst("sub", "Dest = resTemp = Op1 - secondOp;", "sub")
253 buildDataInst("rsb", "Dest = resTemp = secondOp - Op1;", "rsb")
254 buildDataInst("add", "Dest = resTemp = Op1 + secondOp;", "add")
255 buildImmDataInst("adr", '''
256 Dest = resTemp = (readPC(xc) & ~0x3) +
257 (op1 ? secondOp : -secondOp);
258 ''')
259 buildDataInst("adc", "Dest = resTemp = Op1 + secondOp + %s;" % oldC, "add")
260 buildDataInst("sbc", "Dest = resTemp = Op1 - secondOp - !%s;" % oldC, "sub")
261 buildDataInst("rsc", "Dest = resTemp = secondOp - Op1 - !%s;" % oldC, "rsb")
262 buildDataInst("tst", "resTemp = Op1 & secondOp;", aiw = False)
263 buildDataInst("teq", "resTemp = Op1 ^ secondOp;", aiw = False)
264 buildDataInst("cmp", "resTemp = Op1 - secondOp;", "sub", aiw = False)
265 buildDataInst("cmn", "resTemp = Op1 + secondOp;", "add", aiw = False)
266 buildDataInst("orr", "Dest = resTemp = Op1 | secondOp;")
267 buildDataInst("orn", "Dest = resTemp = Op1 | ~secondOp;", aiw = False)
268 buildDataInst("mov", "Dest = resTemp = secondOp;", regRegAiw = False)
269 buildDataInst("bic", "Dest = resTemp = Op1 & ~secondOp;")
270 buildDataInst("mvn", "Dest = resTemp = ~secondOp;")
271 buildDataInst("movt",
272 "Dest = resTemp = insertBits(Op1, 31, 16, secondOp);",
273 aiw = False)
274
275 buildRegDataInst("qadd", '''
276 int32_t midRes;
277 resTemp = saturateOp<32>(midRes, Op1.sw, Op2.sw);
278 Dest = midRes;
279 ''', flagType="saturate", buildNonCc=False)
280 buildRegDataInst("qadd16", '''
281 int32_t midRes;
282 for (unsigned i = 0; i < 2; i++) {
283 int high = (i + 1) * 16 - 1;
284 int low = i * 16;
285 int64_t arg1 = sext<16>(bits(Op1.sw, high, low));
286 int64_t arg2 = sext<16>(bits(Op2.sw, high, low));
287 saturateOp<16>(midRes, arg1, arg2);
288 replaceBits(resTemp, high, low, midRes);
289 }
290 Dest = resTemp;
291 ''', flagType="none", buildCc=False)
292 buildRegDataInst("qadd8", '''
293 int32_t midRes;
294 for (unsigned i = 0; i < 4; i++) {
295 int high = (i + 1) * 8 - 1;
296 int low = i * 8;
297 int64_t arg1 = sext<8>(bits(Op1.sw, high, low));
298 int64_t arg2 = sext<8>(bits(Op2.sw, high, low));
299 saturateOp<8>(midRes, arg1, arg2);
300 replaceBits(resTemp, high, low, midRes);
301 }
302 Dest = resTemp;
303 ''', flagType="none", buildCc=False)
304 buildRegDataInst("qdadd", '''
305 int32_t midRes;
306 resTemp = saturateOp<32>(midRes, Op2.sw, Op2.sw) |
307 saturateOp<32>(midRes, Op1.sw, midRes);
308 Dest = midRes;
309 ''', flagType="saturate", buildNonCc=False)
310 buildRegDataInst("qsub", '''
311 int32_t midRes;
312 resTemp = saturateOp<32>(midRes, Op1.sw, Op2.sw, true);
313 Dest = midRes;
314 ''', flagType="saturate")
315 buildRegDataInst("qsub16", '''
316 int32_t midRes;
317 for (unsigned i = 0; i < 2; i++) {
318 int high = (i + 1) * 16 - 1;
319 int low = i * 16;
320 int64_t arg1 = sext<16>(bits(Op1.sw, high, low));
321 int64_t arg2 = sext<16>(bits(Op2.sw, high, low));
322 saturateOp<16>(midRes, arg1, arg2, true);
323 replaceBits(resTemp, high, low, midRes);
324 }
325 Dest = resTemp;
326 ''', flagType="none", buildCc=False)
327 buildRegDataInst("qsub8", '''
328 int32_t midRes;
329 for (unsigned i = 0; i < 4; i++) {
330 int high = (i + 1) * 8 - 1;
331 int low = i * 8;
332 int64_t arg1 = sext<8>(bits(Op1.sw, high, low));
333 int64_t arg2 = sext<8>(bits(Op2.sw, high, low));
334 saturateOp<8>(midRes, arg1, arg2, true);
335 replaceBits(resTemp, high, low, midRes);
336 }
337 Dest = resTemp;
338 ''', flagType="none", buildCc=False)
339 buildRegDataInst("qdsub", '''
340 int32_t midRes;
341 resTemp = saturateOp<32>(midRes, Op2.sw, Op2.sw) |
342 saturateOp<32>(midRes, Op1.sw, midRes, true);
343 Dest = midRes;
344 ''', flagType="saturate", buildNonCc=False)
345 buildRegDataInst("qasx", '''
346 int32_t midRes;
347 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
348 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
349 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
350 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
351 saturateOp<16>(midRes, arg1Low, arg2High, true);
352 replaceBits(resTemp, 15, 0, midRes);
353 saturateOp<16>(midRes, arg1High, arg2Low);
354 replaceBits(resTemp, 31, 16, midRes);
355 Dest = resTemp;
356 ''', flagType="none", buildCc=False)
357 buildRegDataInst("qsax", '''
358 int32_t midRes;
359 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
360 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
361 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
362 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
363 saturateOp<16>(midRes, arg1Low, arg2High);
364 replaceBits(resTemp, 15, 0, midRes);
365 saturateOp<16>(midRes, arg1High, arg2Low, true);
366 replaceBits(resTemp, 31, 16, midRes);
367 Dest = resTemp;
368 ''', flagType="none", buildCc=False)
369
370 buildRegDataInst("sadd8", '''
371 uint32_t geBits = 0;
372 resTemp = 0;
373 for (unsigned i = 0; i < 4; i++) {
374 int high = (i + 1) * 8 - 1;
375 int low = i * 8;
376 int32_t midRes = sext<8>(bits(Op1.sw, high, low)) +
377 sext<8>(bits(Op2.sw, high, low));
378 replaceBits(resTemp, high, low, midRes);
379 if (midRes >= 0) {
380 geBits = geBits | (1 << i);
381 }
382 }
383 Dest = resTemp;
384 resTemp = geBits;
385 ''', flagType="ge", buildNonCc=False)
386 buildRegDataInst("sadd16", '''
387 uint32_t geBits = 0;
388 resTemp = 0;
389 for (unsigned i = 0; i < 2; i++) {
390 int high = (i + 1) * 16 - 1;
391 int low = i * 16;
392 int32_t midRes = sext<16>(bits(Op1.sw, high, low)) +
393 sext<16>(bits(Op2.sw, high, low));
394 replaceBits(resTemp, high, low, midRes);
395 if (midRes >= 0) {
396 geBits = geBits | (0x3 << (i * 2));
397 }
398 }
399 Dest = resTemp;
400 resTemp = geBits;
401 ''', flagType="ge", buildNonCc=False)
402
403 buildRegDataInst("ssub8", '''
404 uint32_t geBits = 0;
405 resTemp = 0;
406 for (unsigned i = 0; i < 4; i++) {
407 int high = (i + 1) * 8 - 1;
408 int low = i * 8;
409 int32_t midRes = sext<8>(bits(Op1.sw, high, low)) -
410 sext<8>(bits(Op2.sw, high, low));
411 replaceBits(resTemp, high, low, midRes);
412 if (midRes >= 0) {
413 geBits = geBits | (1 << i);
414 }
415 }
416 Dest = resTemp;
417 resTemp = geBits;
418 ''', flagType="ge", buildNonCc=False)
419 buildRegDataInst("ssub16", '''
420 uint32_t geBits = 0;
421 resTemp = 0;
422 for (unsigned i = 0; i < 2; i++) {
423 int high = (i + 1) * 16 - 1;
424 int low = i * 16;
425 int32_t midRes = sext<16>(bits(Op1.sw, high, low)) -
426 sext<16>(bits(Op2.sw, high, low));
427 replaceBits(resTemp, high, low, midRes);
428 if (midRes >= 0) {
429 geBits = geBits | (0x3 << (i * 2));
430 }
431 }
432 Dest = resTemp;
433 resTemp = geBits;
434 ''', flagType="ge", buildNonCc=False)
435 buildRegDataInst("sasx", '''
436 int32_t midRes, geBits = 0;
437 resTemp = 0;
438 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
439 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
440 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
441 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
442 midRes = arg1Low - arg2High;
443 if (midRes >= 0) {
444 geBits = geBits | 0x3;
445 }
446 replaceBits(resTemp, 15, 0, midRes);
447 midRes = arg1High + arg2Low;
448 if (midRes >= 0) {
449 geBits = geBits | 0xc;
450 }
451 replaceBits(resTemp, 31, 16, midRes);
452 Dest = resTemp;
453 resTemp = geBits;
454 ''', flagType="ge", buildNonCc=True)
455 buildRegDataInst("ssax", '''
456 int32_t midRes, geBits = 0;
457 resTemp = 0;
458 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
459 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
460 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
461 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
462 midRes = arg1Low + arg2High;
463 if (midRes >= 0) {
464 geBits = geBits | 0x3;
465 }
466 replaceBits(resTemp, 15, 0, midRes);
467 midRes = arg1High - arg2Low;
468 if (midRes >= 0) {
469 geBits = geBits | 0xc;
470 }
471 replaceBits(resTemp, 31, 16, midRes);
472 Dest = resTemp;
473 resTemp = geBits;
474 ''', flagType="ge", buildNonCc=True)
475
476 buildRegDataInst("shadd8", '''
477 resTemp = 0;
478 for (unsigned i = 0; i < 4; i++) {
479 int high = (i + 1) * 8 - 1;
480 int low = i * 8;
481 int32_t midRes =
482 (uint64_t)(sext<8>(bits(Op1.sw, high, low)) +
483 sext<8>(bits(Op2.sw, high, low))) >> 1;
484 replaceBits(resTemp, high, low, midRes);
485 }
486 Dest = resTemp;
487 ''', flagType="none", buildCc=False)
488 buildRegDataInst("shadd16", '''
489 resTemp = 0;
490 for (unsigned i = 0; i < 2; i++) {
491 int high = (i + 1) * 16 - 1;
492 int low = i * 16;
493 int32_t midRes =
494 (uint64_t)(sext<16>(bits(Op1.sw, high, low)) +
495 sext<16>(bits(Op2.sw, high, low))) >> 1;
496 replaceBits(resTemp, high, low, midRes);
497 }
498 Dest = resTemp;
499 ''', flagType="none", buildCc=False)
500 buildRegDataInst("shsub8", '''
501 resTemp = 0;
502 for (unsigned i = 0; i < 4; i++) {
503 int high = (i + 1) * 8 - 1;
504 int low = i * 8;
505 int32_t midRes =
506 (uint64_t)(sext<8>(bits(Op1.sw, high, low)) -
507 sext<8>(bits(Op2.sw, high, low))) >> 1;
508 replaceBits(resTemp, high, low, midRes);
509 }
510 Dest = resTemp;
511 ''', flagType="none", buildCc=False)
512 buildRegDataInst("shsub16", '''
513 resTemp = 0;
514 for (unsigned i = 0; i < 2; i++) {
515 int high = (i + 1) * 16 - 1;
516 int low = i * 16;
517 int32_t midRes =
518 (uint64_t)(sext<16>(bits(Op1.sw, high, low)) -
519 sext<16>(bits(Op2.sw, high, low))) >> 1;
520 replaceBits(resTemp, high, low, midRes);
521 }
522 Dest = resTemp;
523 ''', flagType="none", buildCc=False)
524 buildRegDataInst("shasx", '''
525 int32_t midRes;
526 resTemp = 0;
527 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
528 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
529 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
530 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
531 midRes = (uint64_t)(arg1Low - arg2High) >> 1;
532 replaceBits(resTemp, 15, 0, midRes);
533 midRes = (arg1High + arg2Low) >> 1;
534 replaceBits(resTemp, 31, 16, midRes);
535 Dest = resTemp;
536 ''', flagType="none", buildCc=True)
537 buildRegDataInst("shsax", '''
538 int32_t midRes;
539 resTemp = 0;
540 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
541 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
542 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
543 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
544 midRes = (uint64_t)(arg1Low + arg2High) >> 1;
545 replaceBits(resTemp, 15, 0, midRes);
546 midRes = (uint64_t)(arg1High - arg2Low) >> 1;
547 replaceBits(resTemp, 31, 16, midRes);
548 Dest = resTemp;
549 ''', flagType="none", buildCc=True)
550
551 buildRegDataInst("uqadd16", '''
552 uint32_t midRes;
553 for (unsigned i = 0; i < 2; i++) {
554 int high = (i + 1) * 16 - 1;
555 int low = i * 16;
556 uint64_t arg1 = bits(Op1, high, low);
557 uint64_t arg2 = bits(Op2, high, low);
558 uSaturateOp<16>(midRes, arg1, arg2);
559 replaceBits(resTemp, high, low, midRes);
560 }
561 Dest = resTemp;
562 ''', flagType="none", buildCc=False)
563 buildRegDataInst("uqadd8", '''
564 uint32_t midRes;
565 for (unsigned i = 0; i < 4; i++) {
566 int high = (i + 1) * 8 - 1;
567 int low = i * 8;
568 uint64_t arg1 = bits(Op1, high, low);
569 uint64_t arg2 = bits(Op2, high, low);
570 uSaturateOp<8>(midRes, arg1, arg2);
571 replaceBits(resTemp, high, low, midRes);
572 }
573 Dest = resTemp;
574 ''', flagType="none", buildCc=False)
575 buildRegDataInst("uqsub16", '''
576 uint32_t midRes;
577 for (unsigned i = 0; i < 2; i++) {
578 int high = (i + 1) * 16 - 1;
579 int low = i * 16;
580 uint64_t arg1 = bits(Op1, high, low);
581 uint64_t arg2 = bits(Op2, high, low);
582 uSaturateOp<16>(midRes, arg1, arg2, true);
583 replaceBits(resTemp, high, low, midRes);
584 }
585 Dest = resTemp;
586 ''', flagType="none", buildCc=False)
587 buildRegDataInst("uqsub8", '''
588 uint32_t midRes;
589 for (unsigned i = 0; i < 4; i++) {
590 int high = (i + 1) * 8 - 1;
591 int low = i * 8;
592 uint64_t arg1 = bits(Op1, high, low);
593 uint64_t arg2 = bits(Op2, high, low);
594 uSaturateOp<8>(midRes, arg1, arg2, true);
595 replaceBits(resTemp, high, low, midRes);
596 }
597 Dest = resTemp;
598 ''', flagType="none", buildCc=False)
599 buildRegDataInst("uqasx", '''
600 uint32_t midRes;
601 uint64_t arg1Low = bits(Op1.sw, 15, 0);
602 uint64_t arg1High = bits(Op1.sw, 31, 16);
603 uint64_t arg2Low = bits(Op2.sw, 15, 0);
604 uint64_t arg2High = bits(Op2.sw, 31, 16);
605 uSaturateOp<16>(midRes, arg1Low, arg2High, true);
606 replaceBits(resTemp, 15, 0, midRes);
607 uSaturateOp<16>(midRes, arg1High, arg2Low);
608 replaceBits(resTemp, 31, 16, midRes);
609 Dest = resTemp;
610 ''', flagType="none", buildCc=False)
611 buildRegDataInst("uqsax", '''
612 uint32_t midRes;
613 uint64_t arg1Low = bits(Op1.sw, 15, 0);
614 uint64_t arg1High = bits(Op1.sw, 31, 16);
615 uint64_t arg2Low = bits(Op2.sw, 15, 0);
616 uint64_t arg2High = bits(Op2.sw, 31, 16);
617 uSaturateOp<16>(midRes, arg1Low, arg2High);
618 replaceBits(resTemp, 15, 0, midRes);
619 uSaturateOp<16>(midRes, arg1High, arg2Low, true);
620 replaceBits(resTemp, 31, 16, midRes);
621 Dest = resTemp;
622 ''', flagType="none", buildCc=False)
623
624 buildRegDataInst("uadd16", '''
625 uint32_t geBits = 0;
626 resTemp = 0;
627 for (unsigned i = 0; i < 2; i++) {
628 int high = (i + 1) * 16 - 1;
629 int low = i * 16;
630 int32_t midRes = bits(Op1, high, low) +
631 bits(Op2, high, low);
632 if (midRes >= 0x10000) {
633 geBits = geBits | (0x3 << (i * 2));
634 }
635 replaceBits(resTemp, high, low, midRes);
636 }
637 Dest = resTemp;
638 resTemp = geBits;
639 ''', flagType="ge", buildNonCc=False)
640 buildRegDataInst("uadd8", '''
641 uint32_t geBits = 0;
642 resTemp = 0;
643 for (unsigned i = 0; i < 4; i++) {
644 int high = (i + 1) * 8 - 1;
645 int low = i * 8;
646 int32_t midRes = bits(Op1, high, low) +
647 bits(Op2, high, low);
648 if (midRes >= 0x100) {
649 geBits = geBits | (1 << i);
650 }
651 replaceBits(resTemp, high, low, midRes);
652 }
653 Dest = resTemp;
654 resTemp = geBits;
655 ''', flagType="ge", buildNonCc=False)
656 buildRegDataInst("usub16", '''
657 uint32_t geBits = 0;
658 resTemp = 0;
659 for (unsigned i = 0; i < 2; i++) {
660 int high = (i + 1) * 16 - 1;
661 int low = i * 16;
662 int32_t midRes = bits(Op1, high, low) -
663 bits(Op2, high, low);
664 if (midRes >= 0) {
665 geBits = geBits | (0x3 << (i * 2));
666 }
667 replaceBits(resTemp, high, low, midRes);
668 }
669 Dest = resTemp;
670 resTemp = geBits;
671 ''', flagType="ge", buildNonCc=False)
672 buildRegDataInst("usub8", '''
673 uint32_t geBits = 0;
674 resTemp = 0;
675 for (unsigned i = 0; i < 4; i++) {
676 int high = (i + 1) * 8 - 1;
677 int low = i * 8;
678 int32_t midRes = bits(Op1, high, low) -
679 bits(Op2, high, low);
680 if (midRes >= 0) {
681 geBits = geBits | (1 << i);
682 }
683 replaceBits(resTemp, high, low, midRes);
684 }
685 Dest = resTemp;
686 resTemp = geBits;
687 ''', flagType="ge", buildNonCc=False)
688 buildRegDataInst("uasx", '''
689 int32_t midRes, geBits = 0;
690 resTemp = 0;
691 int64_t arg1Low = bits(Op1.sw, 15, 0);
692 int64_t arg1High = bits(Op1.sw, 31, 16);
693 int64_t arg2Low = bits(Op2.sw, 15, 0);
694 int64_t arg2High = bits(Op2.sw, 31, 16);
695 midRes = arg1Low - arg2High;
696 if (midRes >= 0) {
697 geBits = geBits | 0x3;
698 }
699 replaceBits(resTemp, 15, 0, midRes);
700 midRes = arg1High + arg2Low;
701 if (midRes >= 0x10000) {
702 geBits = geBits | 0xc;
703 }
704 replaceBits(resTemp, 31, 16, midRes);
705 Dest = resTemp;
706 resTemp = geBits;
707 ''', flagType="ge", buildNonCc=False)
708 buildRegDataInst("usax", '''
709 int32_t midRes, geBits = 0;
710 resTemp = 0;
711 int64_t arg1Low = bits(Op1.sw, 15, 0);
712 int64_t arg1High = bits(Op1.sw, 31, 16);
713 int64_t arg2Low = bits(Op2.sw, 15, 0);
714 int64_t arg2High = bits(Op2.sw, 31, 16);
715 midRes = arg1Low + arg2High;
716 if (midRes >= 0x10000) {
717 geBits = geBits | 0x3;
718 }
719 replaceBits(resTemp, 15, 0, midRes);
720 midRes = arg1High - arg2Low;
721 if (midRes >= 0) {
722 geBits = geBits | 0xc;
723 }
724 replaceBits(resTemp, 31, 16, midRes);
725 Dest = resTemp;
726 resTemp = geBits;
727 ''', flagType="ge", buildNonCc=False)
728
729 buildRegDataInst("uhadd16", '''
730 resTemp = 0;
731 for (unsigned i = 0; i < 2; i++) {
732 int high = (i + 1) * 16 - 1;
733 int low = i * 16;
734 int32_t midRes = (bits(Op1, high, low) +
735 bits(Op2, high, low)) >> 1;
736 replaceBits(resTemp, high, low, midRes);
737 }
738 Dest = resTemp;
739 ''', flagType="none", buildCc=False)
740 buildRegDataInst("uhadd8", '''
741 resTemp = 0;
742 for (unsigned i = 0; i < 4; i++) {
743 int high = (i + 1) * 8 - 1;
744 int low = i * 8;
745 int32_t midRes = (bits(Op1, high, low) +
746 bits(Op2, high, low)) >> 1;
747 replaceBits(resTemp, high, low, midRes);
748 }
749 Dest = resTemp;
750 ''', flagType="none", buildCc=False)
751 buildRegDataInst("uhsub16", '''
752 resTemp = 0;
753 for (unsigned i = 0; i < 2; i++) {
754 int high = (i + 1) * 16 - 1;
755 int low = i * 16;
756 int32_t midRes = (bits(Op1, high, low) -
757 bits(Op2, high, low)) >> 1;
758 replaceBits(resTemp, high, low, midRes);
759 }
760 Dest = resTemp;
761 ''', flagType="none", buildCc=False)
762 buildRegDataInst("uhsub8", '''
763 resTemp = 0;
764 for (unsigned i = 0; i < 4; i++) {
765 int high = (i + 1) * 8 - 1;
766 int low = i * 8;
767 int32_t midRes = (bits(Op1, high, low) -
768 bits(Op2, high, low)) >> 1;
769 replaceBits(resTemp, high, low, midRes);
770 }
771 Dest = resTemp;
772 ''', flagType="none", buildCc=False)
773 buildRegDataInst("uhasx", '''
774 int32_t midRes;
775 resTemp = 0;
776 int64_t arg1Low = bits(Op1.sw, 15, 0);
777 int64_t arg1High = bits(Op1.sw, 31, 16);
778 int64_t arg2Low = bits(Op2.sw, 15, 0);
779 int64_t arg2High = bits(Op2.sw, 31, 16);
780 midRes = (arg1Low - arg2High) >> 1;
781 replaceBits(resTemp, 15, 0, midRes);
782 midRes = (arg1High + arg2Low) >> 1;
783 replaceBits(resTemp, 31, 16, midRes);
784 Dest = resTemp;
785 ''', flagType="none", buildCc=False)
786 buildRegDataInst("uhsax", '''
787 int32_t midRes;
788 resTemp = 0;
789 int64_t arg1Low = bits(Op1.sw, 15, 0);
790 int64_t arg1High = bits(Op1.sw, 31, 16);
791 int64_t arg2Low = bits(Op2.sw, 15, 0);
792 int64_t arg2High = bits(Op2.sw, 31, 16);
793 midRes = (arg1Low + arg2High) >> 1;
794 replaceBits(resTemp, 15, 0, midRes);
795 midRes = (arg1High - arg2Low) >> 1;
796 replaceBits(resTemp, 31, 16, midRes);
797 Dest = resTemp;
798 ''', flagType="none", buildCc=False)
799
800 buildRegDataInst("pkhbt", '''
801 uint32_t resTemp = 0;
802 uint16_t arg1Low = bits(Op1, 15, 0);
803 uint16_t arg2High = bits(secondOp, 31, 16);
804 replaceBits(resTemp, 15, 0, arg1Low);
805 replaceBits(resTemp, 31, 16, arg2High);
806 Dest = resTemp;
807 ''', flagType="none", buildCc=False)
808 buildRegDataInst("pkhtb", '''
809 uint32_t resTemp = 0;
810 uint16_t arg1High = bits(Op1, 31, 16);
811 uint16_t arg2Low = bits(secondOp, 15, 0);
812 replaceBits(resTemp, 15, 0, arg2Low);
813 replaceBits(resTemp, 31, 16, arg1High);
814 Dest = resTemp;
815 ''', flagType="none", buildCc=False)
816}};
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;
242 '''
243 buildImmDataInst(mnem + 's', code, flagType,
244 suffix = "ImmPclr", buildCc = False,
245 instFlags = ["IsSerializeAfter","IsNonSpeculative"])
246 buildRegDataInst(mnem + 's', code, flagType,
247 suffix = "RegPclr", buildCc = False,
248 instFlags = ["IsSerializeAfter","IsNonSpeculative"])
249
250 buildDataInst("and", "Dest = resTemp = Op1 & secondOp;")
251 buildDataInst("eor", "Dest = resTemp = Op1 ^ secondOp;")
252 buildDataInst("sub", "Dest = resTemp = Op1 - secondOp;", "sub")
253 buildDataInst("rsb", "Dest = resTemp = secondOp - Op1;", "rsb")
254 buildDataInst("add", "Dest = resTemp = Op1 + secondOp;", "add")
255 buildImmDataInst("adr", '''
256 Dest = resTemp = (readPC(xc) & ~0x3) +
257 (op1 ? secondOp : -secondOp);
258 ''')
259 buildDataInst("adc", "Dest = resTemp = Op1 + secondOp + %s;" % oldC, "add")
260 buildDataInst("sbc", "Dest = resTemp = Op1 - secondOp - !%s;" % oldC, "sub")
261 buildDataInst("rsc", "Dest = resTemp = secondOp - Op1 - !%s;" % oldC, "rsb")
262 buildDataInst("tst", "resTemp = Op1 & secondOp;", aiw = False)
263 buildDataInst("teq", "resTemp = Op1 ^ secondOp;", aiw = False)
264 buildDataInst("cmp", "resTemp = Op1 - secondOp;", "sub", aiw = False)
265 buildDataInst("cmn", "resTemp = Op1 + secondOp;", "add", aiw = False)
266 buildDataInst("orr", "Dest = resTemp = Op1 | secondOp;")
267 buildDataInst("orn", "Dest = resTemp = Op1 | ~secondOp;", aiw = False)
268 buildDataInst("mov", "Dest = resTemp = secondOp;", regRegAiw = False)
269 buildDataInst("bic", "Dest = resTemp = Op1 & ~secondOp;")
270 buildDataInst("mvn", "Dest = resTemp = ~secondOp;")
271 buildDataInst("movt",
272 "Dest = resTemp = insertBits(Op1, 31, 16, secondOp);",
273 aiw = False)
274
275 buildRegDataInst("qadd", '''
276 int32_t midRes;
277 resTemp = saturateOp<32>(midRes, Op1.sw, Op2.sw);
278 Dest = midRes;
279 ''', flagType="saturate", buildNonCc=False)
280 buildRegDataInst("qadd16", '''
281 int32_t midRes;
282 for (unsigned i = 0; i < 2; i++) {
283 int high = (i + 1) * 16 - 1;
284 int low = i * 16;
285 int64_t arg1 = sext<16>(bits(Op1.sw, high, low));
286 int64_t arg2 = sext<16>(bits(Op2.sw, high, low));
287 saturateOp<16>(midRes, arg1, arg2);
288 replaceBits(resTemp, high, low, midRes);
289 }
290 Dest = resTemp;
291 ''', flagType="none", buildCc=False)
292 buildRegDataInst("qadd8", '''
293 int32_t midRes;
294 for (unsigned i = 0; i < 4; i++) {
295 int high = (i + 1) * 8 - 1;
296 int low = i * 8;
297 int64_t arg1 = sext<8>(bits(Op1.sw, high, low));
298 int64_t arg2 = sext<8>(bits(Op2.sw, high, low));
299 saturateOp<8>(midRes, arg1, arg2);
300 replaceBits(resTemp, high, low, midRes);
301 }
302 Dest = resTemp;
303 ''', flagType="none", buildCc=False)
304 buildRegDataInst("qdadd", '''
305 int32_t midRes;
306 resTemp = saturateOp<32>(midRes, Op2.sw, Op2.sw) |
307 saturateOp<32>(midRes, Op1.sw, midRes);
308 Dest = midRes;
309 ''', flagType="saturate", buildNonCc=False)
310 buildRegDataInst("qsub", '''
311 int32_t midRes;
312 resTemp = saturateOp<32>(midRes, Op1.sw, Op2.sw, true);
313 Dest = midRes;
314 ''', flagType="saturate")
315 buildRegDataInst("qsub16", '''
316 int32_t midRes;
317 for (unsigned i = 0; i < 2; i++) {
318 int high = (i + 1) * 16 - 1;
319 int low = i * 16;
320 int64_t arg1 = sext<16>(bits(Op1.sw, high, low));
321 int64_t arg2 = sext<16>(bits(Op2.sw, high, low));
322 saturateOp<16>(midRes, arg1, arg2, true);
323 replaceBits(resTemp, high, low, midRes);
324 }
325 Dest = resTemp;
326 ''', flagType="none", buildCc=False)
327 buildRegDataInst("qsub8", '''
328 int32_t midRes;
329 for (unsigned i = 0; i < 4; i++) {
330 int high = (i + 1) * 8 - 1;
331 int low = i * 8;
332 int64_t arg1 = sext<8>(bits(Op1.sw, high, low));
333 int64_t arg2 = sext<8>(bits(Op2.sw, high, low));
334 saturateOp<8>(midRes, arg1, arg2, true);
335 replaceBits(resTemp, high, low, midRes);
336 }
337 Dest = resTemp;
338 ''', flagType="none", buildCc=False)
339 buildRegDataInst("qdsub", '''
340 int32_t midRes;
341 resTemp = saturateOp<32>(midRes, Op2.sw, Op2.sw) |
342 saturateOp<32>(midRes, Op1.sw, midRes, true);
343 Dest = midRes;
344 ''', flagType="saturate", buildNonCc=False)
345 buildRegDataInst("qasx", '''
346 int32_t midRes;
347 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
348 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
349 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
350 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
351 saturateOp<16>(midRes, arg1Low, arg2High, true);
352 replaceBits(resTemp, 15, 0, midRes);
353 saturateOp<16>(midRes, arg1High, arg2Low);
354 replaceBits(resTemp, 31, 16, midRes);
355 Dest = resTemp;
356 ''', flagType="none", buildCc=False)
357 buildRegDataInst("qsax", '''
358 int32_t midRes;
359 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
360 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
361 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
362 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
363 saturateOp<16>(midRes, arg1Low, arg2High);
364 replaceBits(resTemp, 15, 0, midRes);
365 saturateOp<16>(midRes, arg1High, arg2Low, true);
366 replaceBits(resTemp, 31, 16, midRes);
367 Dest = resTemp;
368 ''', flagType="none", buildCc=False)
369
370 buildRegDataInst("sadd8", '''
371 uint32_t geBits = 0;
372 resTemp = 0;
373 for (unsigned i = 0; i < 4; i++) {
374 int high = (i + 1) * 8 - 1;
375 int low = i * 8;
376 int32_t midRes = sext<8>(bits(Op1.sw, high, low)) +
377 sext<8>(bits(Op2.sw, high, low));
378 replaceBits(resTemp, high, low, midRes);
379 if (midRes >= 0) {
380 geBits = geBits | (1 << i);
381 }
382 }
383 Dest = resTemp;
384 resTemp = geBits;
385 ''', flagType="ge", buildNonCc=False)
386 buildRegDataInst("sadd16", '''
387 uint32_t geBits = 0;
388 resTemp = 0;
389 for (unsigned i = 0; i < 2; i++) {
390 int high = (i + 1) * 16 - 1;
391 int low = i * 16;
392 int32_t midRes = sext<16>(bits(Op1.sw, high, low)) +
393 sext<16>(bits(Op2.sw, high, low));
394 replaceBits(resTemp, high, low, midRes);
395 if (midRes >= 0) {
396 geBits = geBits | (0x3 << (i * 2));
397 }
398 }
399 Dest = resTemp;
400 resTemp = geBits;
401 ''', flagType="ge", buildNonCc=False)
402
403 buildRegDataInst("ssub8", '''
404 uint32_t geBits = 0;
405 resTemp = 0;
406 for (unsigned i = 0; i < 4; i++) {
407 int high = (i + 1) * 8 - 1;
408 int low = i * 8;
409 int32_t midRes = sext<8>(bits(Op1.sw, high, low)) -
410 sext<8>(bits(Op2.sw, high, low));
411 replaceBits(resTemp, high, low, midRes);
412 if (midRes >= 0) {
413 geBits = geBits | (1 << i);
414 }
415 }
416 Dest = resTemp;
417 resTemp = geBits;
418 ''', flagType="ge", buildNonCc=False)
419 buildRegDataInst("ssub16", '''
420 uint32_t geBits = 0;
421 resTemp = 0;
422 for (unsigned i = 0; i < 2; i++) {
423 int high = (i + 1) * 16 - 1;
424 int low = i * 16;
425 int32_t midRes = sext<16>(bits(Op1.sw, high, low)) -
426 sext<16>(bits(Op2.sw, high, low));
427 replaceBits(resTemp, high, low, midRes);
428 if (midRes >= 0) {
429 geBits = geBits | (0x3 << (i * 2));
430 }
431 }
432 Dest = resTemp;
433 resTemp = geBits;
434 ''', flagType="ge", buildNonCc=False)
435 buildRegDataInst("sasx", '''
436 int32_t midRes, geBits = 0;
437 resTemp = 0;
438 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
439 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
440 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
441 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
442 midRes = arg1Low - arg2High;
443 if (midRes >= 0) {
444 geBits = geBits | 0x3;
445 }
446 replaceBits(resTemp, 15, 0, midRes);
447 midRes = arg1High + arg2Low;
448 if (midRes >= 0) {
449 geBits = geBits | 0xc;
450 }
451 replaceBits(resTemp, 31, 16, midRes);
452 Dest = resTemp;
453 resTemp = geBits;
454 ''', flagType="ge", buildNonCc=True)
455 buildRegDataInst("ssax", '''
456 int32_t midRes, geBits = 0;
457 resTemp = 0;
458 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
459 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
460 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
461 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
462 midRes = arg1Low + arg2High;
463 if (midRes >= 0) {
464 geBits = geBits | 0x3;
465 }
466 replaceBits(resTemp, 15, 0, midRes);
467 midRes = arg1High - arg2Low;
468 if (midRes >= 0) {
469 geBits = geBits | 0xc;
470 }
471 replaceBits(resTemp, 31, 16, midRes);
472 Dest = resTemp;
473 resTemp = geBits;
474 ''', flagType="ge", buildNonCc=True)
475
476 buildRegDataInst("shadd8", '''
477 resTemp = 0;
478 for (unsigned i = 0; i < 4; i++) {
479 int high = (i + 1) * 8 - 1;
480 int low = i * 8;
481 int32_t midRes =
482 (uint64_t)(sext<8>(bits(Op1.sw, high, low)) +
483 sext<8>(bits(Op2.sw, high, low))) >> 1;
484 replaceBits(resTemp, high, low, midRes);
485 }
486 Dest = resTemp;
487 ''', flagType="none", buildCc=False)
488 buildRegDataInst("shadd16", '''
489 resTemp = 0;
490 for (unsigned i = 0; i < 2; i++) {
491 int high = (i + 1) * 16 - 1;
492 int low = i * 16;
493 int32_t midRes =
494 (uint64_t)(sext<16>(bits(Op1.sw, high, low)) +
495 sext<16>(bits(Op2.sw, high, low))) >> 1;
496 replaceBits(resTemp, high, low, midRes);
497 }
498 Dest = resTemp;
499 ''', flagType="none", buildCc=False)
500 buildRegDataInst("shsub8", '''
501 resTemp = 0;
502 for (unsigned i = 0; i < 4; i++) {
503 int high = (i + 1) * 8 - 1;
504 int low = i * 8;
505 int32_t midRes =
506 (uint64_t)(sext<8>(bits(Op1.sw, high, low)) -
507 sext<8>(bits(Op2.sw, high, low))) >> 1;
508 replaceBits(resTemp, high, low, midRes);
509 }
510 Dest = resTemp;
511 ''', flagType="none", buildCc=False)
512 buildRegDataInst("shsub16", '''
513 resTemp = 0;
514 for (unsigned i = 0; i < 2; i++) {
515 int high = (i + 1) * 16 - 1;
516 int low = i * 16;
517 int32_t midRes =
518 (uint64_t)(sext<16>(bits(Op1.sw, high, low)) -
519 sext<16>(bits(Op2.sw, high, low))) >> 1;
520 replaceBits(resTemp, high, low, midRes);
521 }
522 Dest = resTemp;
523 ''', flagType="none", buildCc=False)
524 buildRegDataInst("shasx", '''
525 int32_t midRes;
526 resTemp = 0;
527 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
528 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
529 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
530 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
531 midRes = (uint64_t)(arg1Low - arg2High) >> 1;
532 replaceBits(resTemp, 15, 0, midRes);
533 midRes = (arg1High + arg2Low) >> 1;
534 replaceBits(resTemp, 31, 16, midRes);
535 Dest = resTemp;
536 ''', flagType="none", buildCc=True)
537 buildRegDataInst("shsax", '''
538 int32_t midRes;
539 resTemp = 0;
540 int64_t arg1Low = sext<16>(bits(Op1.sw, 15, 0));
541 int64_t arg1High = sext<16>(bits(Op1.sw, 31, 16));
542 int64_t arg2Low = sext<16>(bits(Op2.sw, 15, 0));
543 int64_t arg2High = sext<16>(bits(Op2.sw, 31, 16));
544 midRes = (uint64_t)(arg1Low + arg2High) >> 1;
545 replaceBits(resTemp, 15, 0, midRes);
546 midRes = (uint64_t)(arg1High - arg2Low) >> 1;
547 replaceBits(resTemp, 31, 16, midRes);
548 Dest = resTemp;
549 ''', flagType="none", buildCc=True)
550
551 buildRegDataInst("uqadd16", '''
552 uint32_t midRes;
553 for (unsigned i = 0; i < 2; i++) {
554 int high = (i + 1) * 16 - 1;
555 int low = i * 16;
556 uint64_t arg1 = bits(Op1, high, low);
557 uint64_t arg2 = bits(Op2, high, low);
558 uSaturateOp<16>(midRes, arg1, arg2);
559 replaceBits(resTemp, high, low, midRes);
560 }
561 Dest = resTemp;
562 ''', flagType="none", buildCc=False)
563 buildRegDataInst("uqadd8", '''
564 uint32_t midRes;
565 for (unsigned i = 0; i < 4; i++) {
566 int high = (i + 1) * 8 - 1;
567 int low = i * 8;
568 uint64_t arg1 = bits(Op1, high, low);
569 uint64_t arg2 = bits(Op2, high, low);
570 uSaturateOp<8>(midRes, arg1, arg2);
571 replaceBits(resTemp, high, low, midRes);
572 }
573 Dest = resTemp;
574 ''', flagType="none", buildCc=False)
575 buildRegDataInst("uqsub16", '''
576 uint32_t midRes;
577 for (unsigned i = 0; i < 2; i++) {
578 int high = (i + 1) * 16 - 1;
579 int low = i * 16;
580 uint64_t arg1 = bits(Op1, high, low);
581 uint64_t arg2 = bits(Op2, high, low);
582 uSaturateOp<16>(midRes, arg1, arg2, true);
583 replaceBits(resTemp, high, low, midRes);
584 }
585 Dest = resTemp;
586 ''', flagType="none", buildCc=False)
587 buildRegDataInst("uqsub8", '''
588 uint32_t midRes;
589 for (unsigned i = 0; i < 4; i++) {
590 int high = (i + 1) * 8 - 1;
591 int low = i * 8;
592 uint64_t arg1 = bits(Op1, high, low);
593 uint64_t arg2 = bits(Op2, high, low);
594 uSaturateOp<8>(midRes, arg1, arg2, true);
595 replaceBits(resTemp, high, low, midRes);
596 }
597 Dest = resTemp;
598 ''', flagType="none", buildCc=False)
599 buildRegDataInst("uqasx", '''
600 uint32_t midRes;
601 uint64_t arg1Low = bits(Op1.sw, 15, 0);
602 uint64_t arg1High = bits(Op1.sw, 31, 16);
603 uint64_t arg2Low = bits(Op2.sw, 15, 0);
604 uint64_t arg2High = bits(Op2.sw, 31, 16);
605 uSaturateOp<16>(midRes, arg1Low, arg2High, true);
606 replaceBits(resTemp, 15, 0, midRes);
607 uSaturateOp<16>(midRes, arg1High, arg2Low);
608 replaceBits(resTemp, 31, 16, midRes);
609 Dest = resTemp;
610 ''', flagType="none", buildCc=False)
611 buildRegDataInst("uqsax", '''
612 uint32_t midRes;
613 uint64_t arg1Low = bits(Op1.sw, 15, 0);
614 uint64_t arg1High = bits(Op1.sw, 31, 16);
615 uint64_t arg2Low = bits(Op2.sw, 15, 0);
616 uint64_t arg2High = bits(Op2.sw, 31, 16);
617 uSaturateOp<16>(midRes, arg1Low, arg2High);
618 replaceBits(resTemp, 15, 0, midRes);
619 uSaturateOp<16>(midRes, arg1High, arg2Low, true);
620 replaceBits(resTemp, 31, 16, midRes);
621 Dest = resTemp;
622 ''', flagType="none", buildCc=False)
623
624 buildRegDataInst("uadd16", '''
625 uint32_t geBits = 0;
626 resTemp = 0;
627 for (unsigned i = 0; i < 2; i++) {
628 int high = (i + 1) * 16 - 1;
629 int low = i * 16;
630 int32_t midRes = bits(Op1, high, low) +
631 bits(Op2, high, low);
632 if (midRes >= 0x10000) {
633 geBits = geBits | (0x3 << (i * 2));
634 }
635 replaceBits(resTemp, high, low, midRes);
636 }
637 Dest = resTemp;
638 resTemp = geBits;
639 ''', flagType="ge", buildNonCc=False)
640 buildRegDataInst("uadd8", '''
641 uint32_t geBits = 0;
642 resTemp = 0;
643 for (unsigned i = 0; i < 4; i++) {
644 int high = (i + 1) * 8 - 1;
645 int low = i * 8;
646 int32_t midRes = bits(Op1, high, low) +
647 bits(Op2, high, low);
648 if (midRes >= 0x100) {
649 geBits = geBits | (1 << i);
650 }
651 replaceBits(resTemp, high, low, midRes);
652 }
653 Dest = resTemp;
654 resTemp = geBits;
655 ''', flagType="ge", buildNonCc=False)
656 buildRegDataInst("usub16", '''
657 uint32_t geBits = 0;
658 resTemp = 0;
659 for (unsigned i = 0; i < 2; i++) {
660 int high = (i + 1) * 16 - 1;
661 int low = i * 16;
662 int32_t midRes = bits(Op1, high, low) -
663 bits(Op2, high, low);
664 if (midRes >= 0) {
665 geBits = geBits | (0x3 << (i * 2));
666 }
667 replaceBits(resTemp, high, low, midRes);
668 }
669 Dest = resTemp;
670 resTemp = geBits;
671 ''', flagType="ge", buildNonCc=False)
672 buildRegDataInst("usub8", '''
673 uint32_t geBits = 0;
674 resTemp = 0;
675 for (unsigned i = 0; i < 4; i++) {
676 int high = (i + 1) * 8 - 1;
677 int low = i * 8;
678 int32_t midRes = bits(Op1, high, low) -
679 bits(Op2, high, low);
680 if (midRes >= 0) {
681 geBits = geBits | (1 << i);
682 }
683 replaceBits(resTemp, high, low, midRes);
684 }
685 Dest = resTemp;
686 resTemp = geBits;
687 ''', flagType="ge", buildNonCc=False)
688 buildRegDataInst("uasx", '''
689 int32_t midRes, geBits = 0;
690 resTemp = 0;
691 int64_t arg1Low = bits(Op1.sw, 15, 0);
692 int64_t arg1High = bits(Op1.sw, 31, 16);
693 int64_t arg2Low = bits(Op2.sw, 15, 0);
694 int64_t arg2High = bits(Op2.sw, 31, 16);
695 midRes = arg1Low - arg2High;
696 if (midRes >= 0) {
697 geBits = geBits | 0x3;
698 }
699 replaceBits(resTemp, 15, 0, midRes);
700 midRes = arg1High + arg2Low;
701 if (midRes >= 0x10000) {
702 geBits = geBits | 0xc;
703 }
704 replaceBits(resTemp, 31, 16, midRes);
705 Dest = resTemp;
706 resTemp = geBits;
707 ''', flagType="ge", buildNonCc=False)
708 buildRegDataInst("usax", '''
709 int32_t midRes, geBits = 0;
710 resTemp = 0;
711 int64_t arg1Low = bits(Op1.sw, 15, 0);
712 int64_t arg1High = bits(Op1.sw, 31, 16);
713 int64_t arg2Low = bits(Op2.sw, 15, 0);
714 int64_t arg2High = bits(Op2.sw, 31, 16);
715 midRes = arg1Low + arg2High;
716 if (midRes >= 0x10000) {
717 geBits = geBits | 0x3;
718 }
719 replaceBits(resTemp, 15, 0, midRes);
720 midRes = arg1High - arg2Low;
721 if (midRes >= 0) {
722 geBits = geBits | 0xc;
723 }
724 replaceBits(resTemp, 31, 16, midRes);
725 Dest = resTemp;
726 resTemp = geBits;
727 ''', flagType="ge", buildNonCc=False)
728
729 buildRegDataInst("uhadd16", '''
730 resTemp = 0;
731 for (unsigned i = 0; i < 2; i++) {
732 int high = (i + 1) * 16 - 1;
733 int low = i * 16;
734 int32_t midRes = (bits(Op1, high, low) +
735 bits(Op2, high, low)) >> 1;
736 replaceBits(resTemp, high, low, midRes);
737 }
738 Dest = resTemp;
739 ''', flagType="none", buildCc=False)
740 buildRegDataInst("uhadd8", '''
741 resTemp = 0;
742 for (unsigned i = 0; i < 4; i++) {
743 int high = (i + 1) * 8 - 1;
744 int low = i * 8;
745 int32_t midRes = (bits(Op1, high, low) +
746 bits(Op2, high, low)) >> 1;
747 replaceBits(resTemp, high, low, midRes);
748 }
749 Dest = resTemp;
750 ''', flagType="none", buildCc=False)
751 buildRegDataInst("uhsub16", '''
752 resTemp = 0;
753 for (unsigned i = 0; i < 2; i++) {
754 int high = (i + 1) * 16 - 1;
755 int low = i * 16;
756 int32_t midRes = (bits(Op1, high, low) -
757 bits(Op2, high, low)) >> 1;
758 replaceBits(resTemp, high, low, midRes);
759 }
760 Dest = resTemp;
761 ''', flagType="none", buildCc=False)
762 buildRegDataInst("uhsub8", '''
763 resTemp = 0;
764 for (unsigned i = 0; i < 4; i++) {
765 int high = (i + 1) * 8 - 1;
766 int low = i * 8;
767 int32_t midRes = (bits(Op1, high, low) -
768 bits(Op2, high, low)) >> 1;
769 replaceBits(resTemp, high, low, midRes);
770 }
771 Dest = resTemp;
772 ''', flagType="none", buildCc=False)
773 buildRegDataInst("uhasx", '''
774 int32_t midRes;
775 resTemp = 0;
776 int64_t arg1Low = bits(Op1.sw, 15, 0);
777 int64_t arg1High = bits(Op1.sw, 31, 16);
778 int64_t arg2Low = bits(Op2.sw, 15, 0);
779 int64_t arg2High = bits(Op2.sw, 31, 16);
780 midRes = (arg1Low - arg2High) >> 1;
781 replaceBits(resTemp, 15, 0, midRes);
782 midRes = (arg1High + arg2Low) >> 1;
783 replaceBits(resTemp, 31, 16, midRes);
784 Dest = resTemp;
785 ''', flagType="none", buildCc=False)
786 buildRegDataInst("uhsax", '''
787 int32_t midRes;
788 resTemp = 0;
789 int64_t arg1Low = bits(Op1.sw, 15, 0);
790 int64_t arg1High = bits(Op1.sw, 31, 16);
791 int64_t arg2Low = bits(Op2.sw, 15, 0);
792 int64_t arg2High = bits(Op2.sw, 31, 16);
793 midRes = (arg1Low + arg2High) >> 1;
794 replaceBits(resTemp, 15, 0, midRes);
795 midRes = (arg1High - arg2Low) >> 1;
796 replaceBits(resTemp, 31, 16, midRes);
797 Dest = resTemp;
798 ''', flagType="none", buildCc=False)
799
800 buildRegDataInst("pkhbt", '''
801 uint32_t resTemp = 0;
802 uint16_t arg1Low = bits(Op1, 15, 0);
803 uint16_t arg2High = bits(secondOp, 31, 16);
804 replaceBits(resTemp, 15, 0, arg1Low);
805 replaceBits(resTemp, 31, 16, arg2High);
806 Dest = resTemp;
807 ''', flagType="none", buildCc=False)
808 buildRegDataInst("pkhtb", '''
809 uint32_t resTemp = 0;
810 uint16_t arg1High = bits(Op1, 31, 16);
811 uint16_t arg2Low = bits(secondOp, 15, 0);
812 replaceBits(resTemp, 15, 0, arg2Low);
813 replaceBits(resTemp, 31, 16, arg1High);
814 Dest = resTemp;
815 ''', flagType="none", buildCc=False)
816}};