1// Copyright (c) 2006 The Regents of The University of Michigan
2// All rights reserved.
3//
4// Redistribution and use in source and binary forms, with or without
5// modification, are permitted provided that the following conditions are
6// met: redistributions of source code must retain the above copyright
7// notice, this list of conditions and the following disclaimer;
8// redistributions in binary form must reproduce the above copyright
9// notice, this list of conditions and the following disclaimer in the
10// documentation and/or other materials provided with the distribution;
11// neither the name of the copyright holders nor the names of its
12// contributors may be used to endorse or promote products derived from
13// this software without specific prior written permission.
14//
15// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26//
27// Authors: Ali Saidi
28// Gabe Black
29// Steve Reinhardt
30
31////////////////////////////////////////////////////////////////////
32//
33// The actual decoder specification
34//
35
36decode OP default Unknown::unknown()
37{
38 0x0: decode OP2
39 {
40 //Throw an illegal instruction acception
41 0x0: Trap::illtrap({{fault = new IllegalInstruction;}});
42 format BranchN
43 {
44 0x1: decode BPCC
44 0x1: decode COND2
45 {
46 0x0: bpcci(19, {{
47 if(passesCondition(Ccr<3:0>, COND2))
46 //Branch Always
47 0x8: decode A
48 {
49 0x0: b(19, {{
50 NNPC = xc->readPC() + disp;
49 else
50 handle_annul
51 }});
52 0x2: bpccx(19, {{
53 if(passesCondition(Ccr<7:4>, COND2))
54 NNPC = xc->readPC() + disp;
55 else
56 handle_annul
57 }});
51 }});
52 0x1: b(19, {{
53 NPC = xc->readPC() + disp;
54 NNPC = NPC + 4;
55 }}, ',a');
56 }
57 //Branch Never
58 0x0: decode A
59 {
60 0x0: bn(19, {{
61 NNPC = NNPC;//Don't do anything
62 }});
63 0x1: bn(19, {{
64 NPC = xc->readNextPC() + 4;
65 NNPC = NPC + 4;
66 }}, ',a');
67 }
68 default: decode BPCC
69 {
70 0x0: bpcci(19, {{
71 if(passesCondition(Ccr<3:0>, COND2))
72 NNPC = xc->readPC() + disp;
73 else
74 handle_annul
75 }});
76 0x2: bpccx(19, {{
77 if(passesCondition(Ccr<7:4>, COND2))
78 NNPC = xc->readPC() + disp;
79 else
80 handle_annul
81 }});
82 }
83 }
84 0x2: bicc(22, {{
85 if(passesCondition(Ccr<3:0>, COND2))
86 NNPC = xc->readPC() + disp;
87 else
88 handle_annul
89 }});
90 }
91 0x3: decode RCOND2
92 {
93 format BranchSplit
94 {
95 0x1: bpreq({{
96 if(Rs1.sdw == 0)
97 NNPC = xc->readPC() + disp;
98 else
99 handle_annul
100 }});
101 0x2: bprle({{
102 if(Rs1.sdw <= 0)
103 NNPC = xc->readPC() + disp;
104 else
105 handle_annul
106 }});
107 0x3: bprl({{
108 if(Rs1.sdw < 0)
109 NNPC = xc->readPC() + disp;
110 else
111 handle_annul
112 }});
113 0x5: bprne({{
114 if(Rs1.sdw != 0)
115 NNPC = xc->readPC() + disp;
116 else
117 handle_annul
118 }});
119 0x6: bprg({{
120 if(Rs1.sdw > 0)
121 NNPC = xc->readPC() + disp;
122 else
123 handle_annul
124 }});
125 0x7: bprge({{
126 if(Rs1.sdw >= 0)
127 NNPC = xc->readPC() + disp;
128 else
129 handle_annul
130 }});
131 }
132 }
133 //SETHI (or NOP if rd == 0 and imm == 0)
134 0x4: SetHi::sethi({{Rd.udw = imm;}});
135 0x5: Trap::fbpfcc({{fault = new FpDisabled;}});
136 0x6: Trap::fbfcc({{fault = new FpDisabled;}});
137 }
138 0x1: BranchN::call(30, {{
139 R15 = xc->readPC();
140 NNPC = R15 + disp;
141 }});
142 0x2: decode OP3 {
143 format IntOp {
144 0x00: add({{Rd = Rs1.sdw + Rs2_or_imm13;}});
145 0x01: and({{Rd = Rs1.sdw & Rs2_or_imm13;}});
146 0x02: or({{Rd = Rs1.sdw | Rs2_or_imm13;}});
147 0x03: xor({{Rd = Rs1.sdw ^ Rs2_or_imm13;}});
148 0x04: sub({{Rd = Rs1.sdw - Rs2_or_imm13;}});
149 0x05: andn({{Rd = Rs1.sdw & ~Rs2_or_imm13;}});
150 0x06: orn({{Rd = Rs1.sdw | ~Rs2_or_imm13;}});
151 0x07: xnor({{Rd = ~(Rs1.sdw ^ Rs2_or_imm13);}});
152 0x08: addc({{Rd = Rs1.sdw + Rs2_or_imm13 + Ccr<0:0>;}});
153 0x09: mulx({{Rd = Rs1.sdw * Rs2_or_imm13;}});
154 0x0A: umul({{
155 Rd = Rs1.udw<31:0> * Rs2_or_imm13<31:0>;
156 Y = Rd<63:32>;
157 }});
158 0x0B: smul({{
159 Rd.sdw = Rs1.sdw<31:0> * Rs2_or_imm13<31:0>;
160 Y = Rd.sdw;
161 }});
162 0x0C: subc({{Rd.sdw = Rs1.sdw + (~Rs2_or_imm13) + 1 - Ccr<0:0>}});
163 0x0D: udivx({{
164 if(Rs2_or_imm13 == 0) fault = new DivisionByZero;
165 else Rd.udw = Rs1.udw / Rs2_or_imm13;
166 }});
167 0x0E: udiv({{
168 if(Rs2_or_imm13 == 0) fault = new DivisionByZero;
169 else
170 {
171 Rd.udw = ((Y << 32) | Rs1.udw<31:0>) / Rs2_or_imm13;
172 if(Rd.udw >> 32 != 0)
173 Rd.udw = 0xFFFFFFFF;
174 }
175 }});
176 0x0F: sdiv({{
177 if(Rs2_or_imm13.sdw == 0)
178 fault = new DivisionByZero;
179 else
180 {
181 Rd.udw = ((int64_t)((Y << 32) | Rs1.sdw<31:0>)) / Rs2_or_imm13.sdw;
182 if(Rd.udw<63:31> != 0)
183 Rd.udw = 0x7FFFFFFF;
184 else if(Rd.udw<63:> && Rd.udw<62:31> != 0xFFFFFFFF)
185 Rd.udw = 0xFFFFFFFF80000000ULL;
186 }
187 }});
188 }
189 format IntOpCc {
190 0x10: addcc({{
191 int64_t resTemp, val2 = Rs2_or_imm13;
192 Rd = resTemp = Rs1 + val2;}},
193 {{(Rs1<31:0> + val2<31:0>)<32:>}},
194 {{Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>}},
195 {{(Rs1<63:1> + val2<63:1> + (Rs1 & val2)<0:>)<63:>}},
196 {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}}
197 );
198 0x11: IntOpCcRes::andcc({{Rd = Rs1 & Rs2_or_imm13;}});
199 0x12: IntOpCcRes::orcc({{Rd = Rs1 | Rs2_or_imm13;}});
200 0x13: IntOpCcRes::xorcc({{Rd = Rs1 ^ Rs2_or_imm13;}});
201 0x14: subcc({{
202 int64_t val2 = Rs2_or_imm13;
203 Rd = Rs1 - val2;}},
204 {{(~(Rs1<31:0> + (~val2)<31:0> + 1))<32:>}},
205 {{(Rs1<31:> != val2<31:>) && (Rs1<31:> != Rd<31:>)}},
206 {{(~(Rs1<63:1> + (~val2)<63:1> +
207 (Rs1 | ~val2)<0:>))<63:>}},
208 {{Rs1<63:> != val2<63:> && Rs1<63:> != Rd<63:>}}
209 );
210 0x15: IntOpCcRes::andncc({{Rd = Rs1 & ~Rs2_or_imm13;}});
211 0x16: IntOpCcRes::orncc({{Rd = Rs1 | ~Rs2_or_imm13;}});
212 0x17: IntOpCcRes::xnorcc({{Rd = ~(Rs1 ^ Rs2_or_imm13);}});
213 0x18: addccc({{
214 int64_t resTemp, val2 = Rs2_or_imm13;
215 int64_t carryin = Ccr<0:0>;
216 Rd = resTemp = Rs1 + val2 + carryin;}},
217 {{(Rs1<31:0> + val2<31:0> + carryin)<32:>}},
218 {{Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>}},
219 {{(Rs1<63:1> + val2<63:1> +
220 ((Rs1 & val2) | (carryin & (Rs1 | val2)))<0:>)<63:>}},
221 {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}}
222 );
223 0x1A: umulcc({{
224 uint64_t resTemp;
225 Rd = resTemp = Rs1.udw<31:0> * Rs2_or_imm13.udw<31:0>;
226 Y = resTemp<63:32>;}},
227 {{0}},{{0}},{{0}},{{0}});
228 0x1B: smulcc({{
229 int64_t resTemp;
230 Rd = resTemp = Rs1.sdw<31:0> * Rs2_or_imm13.sdw<31:0>;
231 Y = resTemp<63:32>;}},
232 {{0}},{{0}},{{0}},{{0}});
233 0x1C: subccc({{
234 int64_t resTemp, val2 = Rs2_or_imm13;
235 int64_t carryin = Ccr<0:0>;
236 Rd = resTemp = Rs1 + ~val2 + 1 - carryin;}},
237 {{(~((Rs1<31:0> + (~(val2 + carryin))<31:0> + 1))<32:>)}},
238 {{Rs1<31:> != val2<31:> && Rs1<31:> != resTemp<31:>}},
239 {{(~((Rs1<63:1> + (~(val2 + carryin))<63:1>) + (Rs1<0:> + (~(val2+carryin))<0:> + 1)<63:1>))<63:>}},
240 {{Rs1<63:> != val2<63:> && Rs1<63:> != resTemp<63:>}}
241 );
242 0x1D: udivxcc({{
243 if(Rs2_or_imm13.udw == 0) fault = new DivisionByZero;
244 else Rd = Rs1.udw / Rs2_or_imm13.udw;}}
245 ,{{0}},{{0}},{{0}},{{0}});
246 0x1E: udivcc({{
247 uint32_t resTemp, val2 = Rs2_or_imm13.udw;
248 int32_t overflow = 0;
249 if(val2 == 0) fault = new DivisionByZero;
250 else
251 {
252 resTemp = (uint64_t)((Y << 32) | Rs1.udw<31:0>) / val2;
253 overflow = (resTemp<63:32> != 0);
254 if(overflow) Rd = resTemp = 0xFFFFFFFF;
255 else Rd = resTemp;
256 } }},
257 {{0}},
258 {{overflow}},
259 {{0}},
260 {{0}}
261 );
262 0x1F: sdivcc({{
263 int64_t val2 = Rs2_or_imm13.sdw<31:0>;
264 bool overflow = false, underflow = false;
265 if(val2 == 0) fault = new DivisionByZero;
266 else
267 {
268 Rd = (int64_t)((Y << 32) | Rs1.sdw<31:0>) / val2;
269 overflow = (Rd<63:31> != 0);
270 underflow = (Rd<63:> && Rd<62:31> != 0xFFFFFFFF);
271 if(overflow) Rd = 0x7FFFFFFF;
272 else if(underflow) Rd = 0xFFFFFFFF80000000ULL;
273 } }},
274 {{0}},
275 {{overflow || underflow}},
276 {{0}},
277 {{0}}
278 );
279 0x20: taddcc({{
280 int64_t resTemp, val2 = Rs2_or_imm13;
281 Rd = resTemp = Rs1 + val2;
282 int32_t overflow = Rs1<1:0> || val2<1:0> || (Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>);}},
283 {{((Rs1 & 0xFFFFFFFF + val2 & 0xFFFFFFFF) >> 31)}},
284 {{overflow}},
285 {{((Rs1 >> 1) + (val2 >> 1) + (Rs1 & val2 & 0x1))<63:>}},
286 {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}}
287 );
288 0x21: tsubcc({{
289 int64_t resTemp, val2 = Rs2_or_imm13;
290 Rd = resTemp = Rs1 + val2;
291 int32_t overflow = Rs1<1:0> || val2<1:0> || (Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>);}},
292 {{(Rs1 & 0xFFFFFFFF + val2 & 0xFFFFFFFF) >> 31}},
293 {{overflow}},
294 {{((Rs1 >> 1) + (val2 >> 1) + (Rs1 & val2 & 0x1))<63:>}},
295 {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}}
296 );
297 0x22: taddcctv({{
298 int64_t val2 = Rs2_or_imm13;
299 Rd = Rs1 + val2;
300 int32_t overflow = Rs1<1:0> || val2<1:0> ||
301 (Rs1<31:> == val2<31:> && val2<31:> != Rd<31:>);
302 if(overflow) fault = new TagOverflow;}},
303 {{((Rs1 & 0xFFFFFFFF + val2 & 0xFFFFFFFF) >> 31)}},
304 {{overflow}},
305 {{((Rs1 >> 1) + (val2 >> 1) + (Rs1 & val2 & 0x1))<63:>}},
306 {{Rs1<63:> == val2<63:> && val2<63:> != Rd<63:>}}
307 );
308 0x23: tsubcctv({{
309 int64_t resTemp, val2 = Rs2_or_imm13;
310 Rd = resTemp = Rs1 + val2;
311 int32_t overflow = Rs1<1:0> || val2<1:0> || (Rs1<31:> == val2<31:> && val2<31:> != resTemp<31:>);
312 if(overflow) fault = new TagOverflow;}},
313 {{((Rs1 & 0xFFFFFFFF + val2 & 0xFFFFFFFF) >> 31)}},
314 {{overflow}},
315 {{((Rs1 >> 1) + (val2 >> 1) + (Rs1 & val2 & 0x1))<63:>}},
316 {{Rs1<63:> == val2<63:> && val2<63:> != resTemp<63:>}}
317 );
318 0x24: mulscc({{
319 int64_t resTemp, multiplicand = Rs2_or_imm13;
320 int32_t multiplier = Rs1<31:0>;
321 int32_t savedLSB = Rs1<0:>;
322 multiplier = multiplier<31:1> |
323 ((Ccr<3:3>
324 ^ Ccr<1:1>) << 32);
325 if(!Y<0:>)
326 multiplicand = 0;
327 Rd = resTemp = multiplicand + multiplier;
328 Y = Y<31:1> | (savedLSB << 31);}},
329 {{((multiplicand & 0xFFFFFFFF + multiplier & 0xFFFFFFFF) >> 31)}},
330 {{multiplicand<31:> == multiplier<31:> && multiplier<31:> != resTemp<31:>}},
331 {{((multiplicand >> 1) + (multiplier >> 1) + (multiplicand & multiplier & 0x1))<63:>}},
332 {{multiplicand<63:> == multiplier<63:> && multiplier<63:> != resTemp<63:>}}
333 );
334 }
335 format IntOp
336 {
337 0x25: decode X {
338 0x0: sll({{Rd = Rs1 << (I ? SHCNT32 : Rs2<4:0>);}});
339 0x1: sllx({{Rd = Rs1 << (I ? SHCNT64 : Rs2<5:0>);}});
340 }
341 0x26: decode X {
342 0x0: srl({{Rd = Rs1.uw >> (I ? SHCNT32 : Rs2<4:0>);}});
343 0x1: srlx({{Rd = Rs1.udw >> (I ? SHCNT64 : Rs2<5:0>);}});
344 }
345 0x27: decode X {
346 0x0: sra({{Rd = Rs1.sw >> (I ? SHCNT32 : Rs2<4:0>);}});
347 0x1: srax({{Rd = Rs1.sdw >> (I ? SHCNT64 : Rs2<5:0>);}});
348 }
349 // XXX might want a format rdipr thing here
350 0x28: decode RS1 {
351 0xF: decode I {
352 0x0: Nop::stbar({{/*stuff*/}});
353 0x1: Nop::membar({{/*stuff*/}});
354 }
355 default: rdasr({{
356 Rd = xc->readMiscRegWithEffect(RS1 + AsrStart, fault);
357 }});
358 }
359 0x29: HPriv::rdhpr({{
360 // XXX Need to protect with format that traps non-priv/priv
361 // access
362 Rd = xc->readMiscRegWithEffect(RS1 + HprStart, fault);
363 }});
364 0x2A: Priv::rdpr({{
365 // XXX Need to protect with format that traps non-priv
366 // access
367 Rd = xc->readMiscRegWithEffect(RS1 + PrStart, fault);
368 }});
369 0x2B: BasicOperate::flushw({{
370 if(NWindows - 2 - Cansave == 0)
371 {
372 if(Otherwin)
373 fault = new SpillNOther(Wstate<5:3>);
374 else
375 fault = new SpillNNormal(Wstate<2:0>);
376 }
377 }});
378 0x2C: decode MOVCC3
379 {
380 0x0: Trap::movccfcc({{fault = new FpDisabled;}});
381 0x1: decode CC
382 {
383 0x0: movcci({{
384 if(passesCondition(Ccr<3:0>, COND4))
385 Rd = Rs2_or_imm11;
386 else
387 Rd = Rd;
388 }});
389 0x2: movccx({{
390 if(passesCondition(Ccr<7:4>, COND4))
391 Rd = Rs2_or_imm11;
392 else
393 Rd = Rd;
394 }});
395 }
396 }
397 0x2D: sdivx({{
398 if(Rs2_or_imm13.sdw == 0) fault = new DivisionByZero;
399 else Rd.sdw = Rs1.sdw / Rs2_or_imm13.sdw;
400 }});
401 0x2E: decode RS1 {
402 0x0: IntOp::popc({{
403 int64_t count = 0;
404 uint64_t temp = Rs2_or_imm13;
405 //Count the 1s in the front 4bits until none are left
406 uint8_t oneBits[] = {0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4};
407 while(temp)
408 {
409 count += oneBits[temp & 0xF];
410 temp = temp >> 4;
411 }
412 Rd = count;
413 }});
414 }
415 0x2F: decode RCOND3
416 {
417 0x1: movreq({{Rd = (Rs1.sdw == 0) ? Rs2_or_imm10 : Rd;}});
418 0x2: movrle({{Rd = (Rs1.sdw <= 0) ? Rs2_or_imm10 : Rd;}});
419 0x3: movrl({{Rd = (Rs1.sdw < 0) ? Rs2_or_imm10 : Rd;}});
420 0x5: movrne({{Rd = (Rs1.sdw != 0) ? Rs2_or_imm10 : Rd;}});
421 0x6: movrg({{Rd = (Rs1.sdw > 0) ? Rs2_or_imm10 : Rd;}});
422 0x7: movrge({{Rd = (Rs1.sdw >= 0) ? Rs2_or_imm10 : Rd;}});
423 }
424 0x30: wrasr({{
425 xc->setMiscRegWithEffect(RD + AsrStart, Rs1 ^ Rs2_or_imm13);
426 }});
427 0x31: decode FCN {
428 0x0: BasicOperate::saved({{/*Boogy Boogy*/}});
429 0x1: BasicOperate::restored({{/*Boogy Boogy*/}});
430 }
431 0x32: Priv::wrpr({{
432 // XXX Need to protect with format that traps non-priv
433 // access
434 fault = xc->setMiscRegWithEffect(RD + PrStart, Rs1 ^ Rs2_or_imm13);
435 }});
436 0x33: HPriv::wrhpr({{
437 // XXX Need to protect with format that traps non-priv/priv
438 // access
439 fault = xc->setMiscRegWithEffect(RD + HprStart, Rs1 ^ Rs2_or_imm13);
440 }});
441 0x34: decode OPF{
442 format BasicOperate{
443 0x01: fmovs({{
444 Frd.sf = Frs2.sf;
445 //fsr.ftt = fsr.cexc = 0
446 Fsr &= ~(7 << 14);
447 Fsr &= ~(0x1F);
448 }});
449 0x02: fmovd({{
450 Frd.df = Frs2.df;
451 //fsr.ftt = fsr.cexc = 0
452 Fsr &= ~(7 << 14);
453 Fsr &= ~(0x1F);
454 }});
455 0x03: Trap::fmovq({{fault = new FpDisabled;}});
456 0x05: fnegs({{
457 //XXX might want to explicitly flip the sign bit
458 //So cases with Nan and +/-0 don't do weird things
459 Frd.sf = -Frs2.sf;
460 //fsr.ftt = fsr.cexc = 0
461 Fsr &= ~(7 << 14);
462 Fsr &= ~(0x1F);
463 }});
464 0x06: fnegd({{
465 //XXX might want to explicitly flip the sign bit
466 //So cases with Nan and +/-0 don't do weird things
467 Frd.df = -Frs2.df;
468 //fsr.ftt = fsr.cexc = 0
469 Fsr &= ~(7 << 14);
470 Fsr &= ~(0x1F);
471 }});
472 0x07: Trap::fnegq({{fault = new FpDisabled;}});
473 0x09: fabss({{
474 //XXX this instruction should be tested individually
475 //Clear the sign bit
476 Frd.sf = (float)(~(1 << 31) & ((uint32_t)Frs2.sf));
477 //fsr.ftt = fsr.cexc = 0
478 Fsr &= ~(7 << 14);
479 Fsr &= ~(0x1F);
480 }});
481 0x0A: fabsd({{
482 //XXX this instruction should be tested individually
483 //Clear the sign bit
484 Frd.df = (float)(~((uint64_t)1 << 63) & ((uint64_t)Frs2.df));
485 //fsr.ftt = fsr.cexc = 0
486 Fsr &= ~(7 << 14);
487 Fsr &= ~(0x1F);
488 }});
489 0x0B: Trap::fabsq({{fault = new FpDisabled;}});
490 0x29: fsqrts({{Frd.sf = sqrt(Frs2.sf);}});
491 0x2A: fsqrtd({{Frd.df = sqrt(Frs2.df);}});
492 0x2B: Trap::fsqrtq({{fault = new FpDisabled;}});
493 0x41: fadds({{Frd.sf = Frs1.sf + Frs2.sf;}});
494 0x42: faddd({{Frd.df = Frs1.df + Frs2.df;}});
495 0x43: Trap::faddq({{fault = new FpDisabled;}});
496 0x45: fsubs({{Frd.sf = Frs1.sf - Frs2.sf;}});
497 0x46: fsubd({{Frd.df = Frs1.df - Frs2.df;}});
498 0x47: Trap::fsubq({{fault = new FpDisabled;}});
499 0x49: fmuls({{Frd.sf = Frs1.sf * Frs2.sf;}});
500 0x4A: fmuld({{Frd.df = Frs1.df * Frs2.df;}});
501 0x4B: Trap::fmulq({{fault = new FpDisabled;}});
502 0x4D: fdivs({{Frd.sf = Frs1.sf / Frs2.sf;}});
503 0x4E: fdivd({{Frd.df = Frs1.df / Frs2.df;}});
504 0x4F: Trap::fdivq({{fault = new FpDisabled;}});
505 0x69: fsmuld({{Frd.df = Frs1.sf * Frs2.sf;}});
506 0x6E: Trap::fdmulq({{fault = new FpDisabled;}});
507 0x81: fstox({{
508 Frd.df = (double)static_cast<int64_t>(Frs2.sf);
509 }});
510 0x82: fdtox({{
511 Frd.df = (double)static_cast<int64_t>(Frs2.df);
512 }});
513 0x83: Trap::fqtox({{fault = new FpDisabled;}});
514 0x84: fxtos({{
515 Frd.sf = static_cast<float>((int64_t)Frs2.df);
516 }});
517 0x88: fxtod({{
518 Frd.df = static_cast<double>((int64_t)Frs2.df);
519 }});
520 0x8C: Trap::fxtoq({{fault = new FpDisabled;}});
521 0xC4: fitos({{
522 Frd.sf = static_cast<float>((int32_t)Frs2.sf);
523 }});
524 0xC6: fdtos({{Frd.sf = Frs2.df;}});
525 0xC7: Trap::fqtos({{fault = new FpDisabled;}});
526 0xC8: fitod({{
527 Frd.df = static_cast<double>((int32_t)Frs2.sf);
528 }});
529 0xC9: fstod({{Frd.df = Frs2.sf;}});
530 0xCB: Trap::fqtod({{fault = new FpDisabled;}});
531 0xCC: Trap::fitoq({{fault = new FpDisabled;}});
532 0xCD: Trap::fstoq({{fault = new FpDisabled;}});
533 0xCE: Trap::fdtoq({{fault = new FpDisabled;}});
534 0xD1: fstoi({{
535 Frd.sf = (float)static_cast<int32_t>(Frs2.sf);
536 }});
537 0xD2: fdtoi({{
538 Frd.sf = (float)static_cast<int32_t>(Frs2.df);
539 }});
540 0xD3: Trap::fqtoi({{fault = new FpDisabled;}});
541 default: Trap::fpop1({{fault = new FpDisabled;}});
542 }
543 }
544 0x35: Trap::fpop2({{fault = new FpDisabled;}});
545 //This used to be just impdep1, but now it's a whole bunch
546 //of instructions
547 0x36: decode OPF{
548 0x00: Trap::edge8({{fault = new IllegalInstruction;}});
549 0x01: Trap::edge8n({{fault = new IllegalInstruction;}});
550 0x02: Trap::edge8l({{fault = new IllegalInstruction;}});
551 0x03: Trap::edge8ln({{fault = new IllegalInstruction;}});
552 0x04: Trap::edge16({{fault = new IllegalInstruction;}});
553 0x05: Trap::edge16n({{fault = new IllegalInstruction;}});
554 0x06: Trap::edge16l({{fault = new IllegalInstruction;}});
555 0x07: Trap::edge16ln({{fault = new IllegalInstruction;}});
556 0x08: Trap::edge32({{fault = new IllegalInstruction;}});
557 0x09: Trap::edge32n({{fault = new IllegalInstruction;}});
558 0x0A: Trap::edge32l({{fault = new IllegalInstruction;}});
559 0x0B: Trap::edge32ln({{fault = new IllegalInstruction;}});
560 0x10: Trap::array8({{fault = new IllegalInstruction;}});
561 0x12: Trap::array16({{fault = new IllegalInstruction;}});
562 0x14: Trap::array32({{fault = new IllegalInstruction;}});
563 0x18: BasicOperate::alignaddr({{
564 uint64_t sum = Rs1 + Rs2;
565 Rd = sum & ~7;
566 Gsr = (Gsr & ~7) | (sum & 7);
567 }});
568 0x19: Trap::bmask({{fault = new IllegalInstruction;}});
569 0x1A: BasicOperate::alignaddresslittle({{
570 uint64_t sum = Rs1 + Rs2;
571 Rd = sum & ~7;
572 Gsr = (Gsr & ~7) | ((~sum + 1) & 7);
573 }});
574 0x20: Trap::fcmple16({{fault = new IllegalInstruction;}});
575 0x22: Trap::fcmpne16({{fault = new IllegalInstruction;}});
576 0x24: Trap::fcmple32({{fault = new IllegalInstruction;}});
577 0x26: Trap::fcmpne32({{fault = new IllegalInstruction;}});
578 0x28: Trap::fcmpgt16({{fault = new IllegalInstruction;}});
579 0x2A: Trap::fcmpeq16({{fault = new IllegalInstruction;}});
580 0x2C: Trap::fcmpgt32({{fault = new IllegalInstruction;}});
581 0x2E: Trap::fcmpeq32({{fault = new IllegalInstruction;}});
582 0x31: Trap::fmul8x16({{fault = new IllegalInstruction;}});
583 0x33: Trap::fmul8x16au({{fault = new IllegalInstruction;}});
584 0x35: Trap::fmul8x16al({{fault = new IllegalInstruction;}});
585 0x36: Trap::fmul8sux16({{fault = new IllegalInstruction;}});
586 0x37: Trap::fmul8ulx16({{fault = new IllegalInstruction;}});
587 0x38: Trap::fmuld8sux16({{fault = new IllegalInstruction;}});
588 0x39: Trap::fmuld8ulx16({{fault = new IllegalInstruction;}});
589 0x3A: Trap::fpack32({{fault = new IllegalInstruction;}});
590 0x3B: Trap::fpack16({{fault = new IllegalInstruction;}});
591 0x3D: Trap::fpackfix({{fault = new IllegalInstruction;}});
592 0x3E: Trap::pdist({{fault = new IllegalInstruction;}});
593 0x48: BasicOperate::faligndata({{
594 uint64_t msbX = (uint64_t)Frs1;
595 uint64_t lsbX = (uint64_t)Frs2;
596 uint64_t msbShift = Gsr<2:0> * 8;
597 uint64_t lsbShift = (8 - Gsr<2:0>) * 8;
598 uint64_t msbMask = ((uint64_t)(-1)) << msbShift;
599 uint64_t lsbMask = ((uint64_t)(-1)) << lsbShift;
600 Frd = ((msbX << msbShift) & msbMask) |
601 ((lsbX << lsbShift) & lsbMask);
602 }});
603 0x4B: Trap::fpmerge({{fault = new IllegalInstruction;}});
604 0x4C: Trap::bshuffle({{fault = new IllegalInstruction;}});
605 0x4D: Trap::fexpand({{fault = new IllegalInstruction;}});
606 0x50: Trap::fpadd16({{fault = new IllegalInstruction;}});
607 0x51: Trap::fpadd16s({{fault = new IllegalInstruction;}});
608 0x52: Trap::fpadd32({{fault = new IllegalInstruction;}});
609 0x53: Trap::fpadd32s({{fault = new IllegalInstruction;}});
610 0x54: Trap::fpsub16({{fault = new IllegalInstruction;}});
611 0x55: Trap::fpsub16s({{fault = new IllegalInstruction;}});
612 0x56: Trap::fpsub32({{fault = new IllegalInstruction;}});
613 0x57: Trap::fpsub32s({{fault = new IllegalInstruction;}});
614 0x60: BasicOperate::fzero({{Frd.df = 0;}});
615 0x61: BasicOperate::fzeros({{Frd.sf = 0;}});
616 0x62: Trap::fnor({{fault = new IllegalInstruction;}});
617 0x63: Trap::fnors({{fault = new IllegalInstruction;}});
618 0x64: Trap::fandnot2({{fault = new IllegalInstruction;}});
619 0x65: Trap::fandnot2s({{fault = new IllegalInstruction;}});
620 0x66: BasicOperate::fnot2({{
621 Frd.df = (double)(~((uint64_t)Frs2.df));
622 }});
623 0x67: BasicOperate::fnot2s({{
624 Frd.sf = (float)(~((uint32_t)Frs2.sf));
625 }});
626 0x68: Trap::fandnot1({{fault = new IllegalInstruction;}});
627 0x69: Trap::fandnot1s({{fault = new IllegalInstruction;}});
628 0x6A: BasicOperate::fnot1({{
629 Frd.df = (double)(~((uint64_t)Frs1.df));
630 }});
631 0x6B: BasicOperate::fnot1s({{
632 Frd.sf = (float)(~((uint32_t)Frs1.sf));
633 }});
634 0x6C: Trap::fxor({{fault = new IllegalInstruction;}});
635 0x6D: Trap::fxors({{fault = new IllegalInstruction;}});
636 0x6E: Trap::fnand({{fault = new IllegalInstruction;}});
637 0x6F: Trap::fnands({{fault = new IllegalInstruction;}});
638 0x70: Trap::fand({{fault = new IllegalInstruction;}});
639 0x71: Trap::fands({{fault = new IllegalInstruction;}});
640 0x72: Trap::fxnor({{fault = new IllegalInstruction;}});
641 0x73: Trap::fxnors({{fault = new IllegalInstruction;}});
642 0x74: BasicOperate::fsrc1({{Frd.df = Frs1.df;}});
643 0x75: BasicOperate::fsrc1s({{Frd.sf = Frs1.sf;}});
644 0x76: Trap::fornot2({{fault = new IllegalInstruction;}});
645 0x77: Trap::fornot2s({{fault = new IllegalInstruction;}});
646 0x78: BasicOperate::fsrc2({{Frd.df = Frs2.df;}});
647 0x79: BasicOperate::fsrc2s({{Frd.sf = Frs2.sf;}});
648 0x7A: Trap::fornot1({{fault = new IllegalInstruction;}});
649 0x7B: Trap::fornot1s({{fault = new IllegalInstruction;}});
650 0x7C: Trap::for({{fault = new IllegalInstruction;}});
651 0x7D: Trap::fors({{fault = new IllegalInstruction;}});
652 0x7E: Trap::fone({{fault = new IllegalInstruction;}});
653 0x7F: Trap::fones({{fault = new IllegalInstruction;}});
654 0x80: Trap::shutdown({{fault = new IllegalInstruction;}});
655 0x81: Trap::siam({{fault = new IllegalInstruction;}});
656 }
657 0x37: Trap::impdep2({{fault = new IllegalInstruction;}});
658 0x38: Branch::jmpl({{
659 Addr target = Rs1 + Rs2_or_imm13;
660 if(target & 0x3)
661 fault = new MemAddressNotAligned;
662 else
663 {
664 Rd = xc->readPC();
665 NNPC = target;
666 }
667 }});
668 0x39: Branch::return({{
669 //If both MemAddressNotAligned and
670 //a fill trap happen, it's not clear
671 //which one should be returned.
672 Addr target = Rs1 + Rs2_or_imm13;
673 if(target & 0x3)
674 fault = new MemAddressNotAligned;
675 else
676 NNPC = target;
677 if(fault == NoFault)
678 {
679 //CWP should be set directly so that it always happens
680 //Also, this will allow writing to the new window and
681 //reading from the old one
682 Cwp = (Cwp - 1 + NWindows) % NWindows;
683 if(Canrestore == 0)
684 {
685 if(Otherwin)
686 fault = new FillNOther(Wstate<5:3>);
687 else
688 fault = new FillNNormal(Wstate<2:0>);
689 }
690 else
691 {
692 Rd = Rs1 + Rs2_or_imm13;
693 Cansave = Cansave + 1;
694 Canrestore = Canrestore - 1;
695 }
696 //This is here to make sure the CWP is written
697 //no matter what. This ensures that the results
698 //are written in the new window as well.
699 xc->setMiscRegWithEffect(MISCREG_CWP, Cwp);
700 }
701 }});
702 0x3A: decode CC
703 {
704 0x0: Trap::tcci({{
705 if(passesCondition(Ccr<3:0>, COND2))
706 {
707#if FULL_SYSTEM
708 int lTrapNum = I ? (Rs1 + SW_TRAP) : (Rs1 + Rs2);
709 DPRINTF(Sparc, "The trap number is %d\n", lTrapNum);
710 fault = new TrapInstruction(lTrapNum);
711#else
712 DPRINTF(Sparc, "The syscall number is %d\n", R1);
713 xc->syscall(R1);
714#endif
715 }
716 }});
717 0x2: Trap::tccx({{
718 if(passesCondition(Ccr<7:4>, COND2))
719 {
720#if FULL_SYSTEM
721 int lTrapNum = I ? (Rs1 + SW_TRAP) : (Rs1 + Rs2);
722 DPRINTF(Sparc, "The trap number is %d\n", lTrapNum);
723 fault = new TrapInstruction(lTrapNum);
724#else
725 DPRINTF(Sparc, "The syscall number is %d\n", R1);
726 xc->syscall(R1);
727#endif
728 }
729 }});
730 }
731 0x3B: Nop::flush({{/*Instruction memory flush*/}});
732 0x3C: save({{
733 //CWP should be set directly so that it always happens
734 //Also, this will allow writing to the new window and
735 //reading from the old one
736 if(Cansave == 0)
737 {
738 if(Otherwin)
739 fault = new SpillNOther(Wstate<5:3>);
740 else
741 fault = new SpillNNormal(Wstate<2:0>);
742 Cwp = (Cwp + 2) % NWindows;
743 }
744 else if(Cleanwin - Canrestore == 0)
745 {
746 Cwp = (Cwp + 1) % NWindows;
747 fault = new CleanWindow;
748 }
749 else
750 {
751 Cwp = (Cwp + 1) % NWindows;
752 Rd = Rs1 + Rs2_or_imm13;
753 Cansave = Cansave - 1;
754 Canrestore = Canrestore + 1;
755 }
756 //This is here to make sure the CWP is written
757 //no matter what. This ensures that the results
758 //are written in the new window as well.
759 xc->setMiscRegWithEffect(MISCREG_CWP, Cwp);
760 }});
761 0x3D: restore({{
762 //CWP should be set directly so that it always happens
763 //Also, this will allow writing to the new window and
764 //reading from the old one
765 Cwp = (Cwp - 1 + NWindows) % NWindows;
766 if(Canrestore == 0)
767 {
768 if(Otherwin)
769 fault = new FillNOther(Wstate<5:3>);
770 else
771 fault = new FillNNormal(Wstate<2:0>);
772 }
773 else
774 {
775 Rd = Rs1 + Rs2_or_imm13;
776 Cansave = Cansave + 1;
777 Canrestore = Canrestore - 1;
778 }
779 //This is here to make sure the CWP is written
780 //no matter what. This ensures that the results
781 //are written in the new window as well.
782 xc->setMiscRegWithEffect(MISCREG_CWP, Cwp);
783 }});
784 0x3E: decode FCN {
785 0x0: Priv::done({{
786 if(Tl == 0)
787 return new IllegalInstruction;
788
789 Cwp = Tstate<4:0>;
790 Pstate = Tstate<20:8>;
791 Asi = Tstate<31:24>;
792 Ccr = Tstate<39:32>;
793 Gl = Tstate<42:40>;
794 NPC = Tnpc;
795 NNPC = Tnpc + 4;
796 Tl = Tl - 1;
797 }});
798 0x1: Priv::retry({{
799 if(Tl == 0)
800 return new IllegalInstruction;
801 Cwp = Tstate<4:0>;
802 Pstate = Tstate<20:8>;
803 Asi = Tstate<31:24>;
804 Ccr = Tstate<39:32>;
805 Gl = Tstate<42:40>;
806 NPC = Tpc;
807 NNPC = Tnpc + 4;
808 Tl = Tl - 1;
809 }});
810 }
811 }
812 }
813 0x3: decode OP3 {
814 format Load {
815 0x00: lduw({{Rd = Mem;}}, {{32}});
816 0x01: ldub({{Rd = Mem;}}, {{8}});
817 0x02: lduh({{Rd = Mem;}}, {{16}});
818 0x03: ldd({{
819 uint64_t val = Mem;
820 RdLow = val<31:0>;
821 RdHigh = val<63:32>;
822 }}, {{64}});
823 }
824 format Store {
825 0x04: stw({{Mem = Rd.sw;}}, {{32}});
826 0x05: stb({{Mem = Rd.sb;}}, {{8}});
827 0x06: sth({{Mem = Rd.shw;}}, {{16}});
828 0x07: std({{Mem = RdLow<31:0> | RdHigh<31:0> << 32;}}, {{64}});
829 }
830 format Load {
831 0x08: ldsw({{Rd = (int32_t)Mem;}}, {{32}});
832 0x09: ldsb({{Rd = (int8_t)Mem;}}, {{8}});
833 0x0A: ldsh({{Rd = (int16_t)Mem;}}, {{16}});
834 0x0B: ldx({{Rd = (int64_t)Mem;}}, {{64}});
835 0x0D: ldstub({{
836 Rd = Mem;
837 Mem = 0xFF;
838 }}, {{8}});
839 }
840 0x0E: Store::stx({{Mem = Rd}}, {{64}});
841 0x0F: LoadStore::swap({{
842 uint32_t temp = Rd;
843 Rd = Mem;
844 Mem = temp;
845 }}, {{32}});
846 format Load {
847 0x10: lduwa({{Rd = Mem;}}, {{32}});
848 0x11: lduba({{Rd = Mem;}}, {{8}});
849 0x12: lduha({{Rd = Mem;}}, {{16}});
850 0x13: ldda({{
851 uint64_t val = Mem;
852 RdLow = val<31:0>;
853 RdHigh = val<63:32>;
854 }}, {{64}});
855 }
856 format Store {
857 0x14: stwa({{Mem = Rd;}}, {{32}});
858 0x15: stba({{Mem = Rd;}}, {{8}});
859 0x16: stha({{Mem = Rd;}}, {{16}});
860 0x17: stda({{Mem = RdLow<31:0> | RdHigh<31:0> << 32;}}, {{64}});
861 }
862 format Load {
863 0x18: ldswa({{Rd = (int32_t)Mem;}}, {{32}});
864 0x19: ldsba({{Rd = (int8_t)Mem;}}, {{8}});
865 0x1A: ldsha({{Rd = (int16_t)Mem;}}, {{16}});
866 0x1B: ldxa({{Rd = (int64_t)Mem;}}, {{64}});
867 }
868 0x1D: LoadStore::ldstuba({{
869 Rd = Mem;
870 Mem = 0xFF;
871 }}, {{8}});
872 0x1E: Store::stxa({{Mem = Rd}}, {{64}});
873 0x1F: LoadStore::swapa({{
874 uint32_t temp = Rd;
875 Rd = Mem;
876 Mem = temp;
877 }}, {{32}});
878 format Trap {
879 0x20: Load::ldf({{Frd.sf = ((float)Mem);}}, {{32}});
880 0x21: decode X {
881 0x0: Load::ldfsr({{Fsr = Mem<31:0> | Fsr<63:32>;}}, {{32}});
882 0x1: Load::ldxfsr({{Fsr = Mem;}}, {{64}});
883 }
884 0x22: ldqf({{fault = new FpDisabled;}});
885 0x23: Load::lddf({{Frd.df = ((double)Mem);}}, {{64}});
886 0x24: Store::stf({{Mem = ((int32_t)Frd.sf);}}, {{32}});
887 0x25: decode X {
888 0x0: Store::stfsr({{Mem = Fsr<31:0>;}}, {{32}});
889 0x1: Store::stxfsr({{Mem = Fsr;}}, {{64}});
890 }
891 0x26: stqf({{fault = new FpDisabled;}});
892 0x27: Store::stdf({{Mem = ((int64_t)Frd.df);}}, {{64}});
893 0x2D: Nop::prefetch({{ }});
894 0x30: Load::ldfa({{Frd.sf = ((float)Mem);}}, {{32}});
895 0x32: ldqfa({{fault = new FpDisabled;}});
896 0x33: Load::lddfa({{Frd.df = ((double)Mem);}}, {{64}});
897 0x34: Store::stfa({{Mem = ((int32_t)Frd.sf);}}, {{32}});
898 0x36: stqfa({{fault = new FpDisabled;}});
899 //XXX need to work in the ASI thing
900 0x37: Store::stdfa({{Mem = ((uint64_t)Frd.df);}}, {{64}});
901 0x3C: Cas::casa({{
902 uint64_t val = Mem.uw;
903 if(Rs2.uw == val)
904 Mem.uw = Rd.uw;
905 Rd.uw = val;
906 }});
907 0x3D: Nop::prefetcha({{ }});
908 0x3E: Cas::casxa({{
909 uint64_t val = Mem.udw;
910 if(Rs2 == val)
911 Mem.udw = Rd;
912 Rd = val;
913 }});
914 }
915 }
916}