/
ArmEmitter.h
908 lines (785 loc) · 30.1 KB
/
ArmEmitter.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
// Copyright (C) 2003 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#pragma once
#include <vector>
#include <cstdint>
#include "Common/CommonTypes.h"
#include "Common/Log.h"
#include "Common/ArmCommon.h"
#include "Common/CodeBlock.h"
// VCVT flags
#define TO_FLOAT 0
#define TO_INT 1 << 0
#define IS_SIGNED 1 << 1
#define ROUND_TO_ZERO 1 << 2
namespace ArmGen
{
enum ARMReg
{
// GPRs
R0 = 0, R1, R2, R3, R4, R5,
R6, R7, R8, R9, R10, R11,
// SPRs
// R13 - R15 are SP, LR, and PC.
// Almost always referred to by name instead of register number
R12 = 12, R13 = 13, R14 = 14, R15 = 15,
R_IP = 12, R_SP = 13, R_LR = 14, R_PC = 15,
// VFP single precision registers
S0, S1, S2, S3, S4, S5, S6,
S7, S8, S9, S10, S11, S12, S13,
S14, S15, S16, S17, S18, S19, S20,
S21, S22, S23, S24, S25, S26, S27,
S28, S29, S30, S31,
// VFP Double Precision registers
D0, D1, D2, D3, D4, D5, D6, D7,
D8, D9, D10, D11, D12, D13, D14, D15,
D16, D17, D18, D19, D20, D21, D22, D23,
D24, D25, D26, D27, D28, D29, D30, D31,
// ASIMD Quad-Word registers
Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7,
Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15,
// for NEON VLD/VST instructions
REG_UPDATE = R13,
INVALID_REG = 0xFFFFFFFF
};
enum ShiftType
{
ST_LSL = 0,
ST_ASL = 0,
ST_LSR = 1,
ST_ASR = 2,
ST_ROR = 3,
ST_RRX = 4
};
enum IntegerSize
{
I_I8 = 0,
I_I16,
I_I32,
I_I64
};
enum
{
NUMGPRs = 13,
};
class ARMXEmitter;
enum OpType
{
TYPE_IMM = 0,
TYPE_REG,
TYPE_IMMSREG,
TYPE_RSR,
TYPE_MEM
};
// This is no longer a proper operand2 class. Need to split up.
class Operand2
{
friend class ARMXEmitter;
protected:
u32 Value;
private:
OpType Type;
// IMM types
u8 Rotation = 0; // Only for u8 values
// Register types
u8 IndexOrShift = 0;
ShiftType Shift = ST_LSL;
public:
OpType GetType() const {
return Type;
}
Operand2() {
Type = TYPE_IMM;
Value = 0;
}
Operand2(u32 imm, OpType type = TYPE_IMM) {
Type = type;
Value = imm;
}
Operand2(ARMReg Reg) {
Type = TYPE_REG;
Value = Reg;
}
Operand2(u8 imm, u8 rotation) {
Type = TYPE_IMM;
Value = imm;
Rotation = rotation;
}
Operand2(ARMReg base, ShiftType type, ARMReg shift) // RSR
{
Type = TYPE_RSR;
_assert_msg_(type != ST_RRX, "Invalid Operand2: RRX does not take a register shift amount");
IndexOrShift = shift;
Shift = type;
Value = base;
}
Operand2(ARMReg base, ShiftType type, u8 shift)// For IMM shifted register
{
if(shift == 32) shift = 0;
switch (type)
{
case ST_LSL:
_assert_msg_(shift < 32, "Invalid Operand2: LSL %u", shift);
break;
case ST_LSR:
_assert_msg_(shift <= 32, "Invalid Operand2: LSR %u", shift);
if (!shift)
type = ST_LSL;
if (shift == 32)
shift = 0;
break;
case ST_ASR:
_assert_msg_(shift < 32, "Invalid Operand2: ASR %u", shift);
if (!shift)
type = ST_LSL;
if (shift == 32)
shift = 0;
break;
case ST_ROR:
_assert_msg_(shift < 32, "Invalid Operand2: ROR %u", shift);
if (!shift)
type = ST_LSL;
break;
case ST_RRX:
_assert_msg_(shift == 0, "Invalid Operand2: RRX does not take an immediate shift amount");
type = ST_ROR;
break;
}
IndexOrShift = shift;
Shift = type;
Value = base;
Type = TYPE_IMMSREG;
}
u32 GetData()
{
switch(Type)
{
case TYPE_IMM:
return Imm12Mod(); // This'll need to be changed later
case TYPE_REG:
return Rm();
case TYPE_IMMSREG:
return IMMSR();
case TYPE_RSR:
return RSR();
default:
_assert_msg_(false, "GetData with Invalid Type");
return 0;
}
}
u32 IMMSR() // IMM shifted register
{
_assert_msg_(Type == TYPE_IMMSREG, "IMMSR must be imm shifted register");
return ((IndexOrShift & 0x1f) << 7 | (Shift << 5) | Value);
}
u32 RSR() // Register shifted register
{
_assert_msg_(Type == TYPE_RSR, "RSR must be RSR Of Course");
return (IndexOrShift << 8) | (Shift << 5) | 0x10 | Value;
}
u32 Rm() const
{
_assert_msg_(Type == TYPE_REG, "Rm must be with Reg");
return Value;
}
u32 Imm5() const
{
_assert_msg_((Type == TYPE_IMM), "Imm5 not IMM value");
return ((Value & 0x0000001F) << 7);
}
u32 Imm8() const
{
_assert_msg_((Type == TYPE_IMM), "Imm8Rot not IMM value");
return Value & 0xFF;
}
u32 Imm8Rot() const // IMM8 with Rotation
{
_assert_msg_((Type == TYPE_IMM), "Imm8Rot not IMM value");
_assert_msg_((Rotation & 0xE1) != 0, "Invalid Operand2: immediate rotation %u", Rotation);
return (1 << 25) | (Rotation << 7) | (Value & 0x000000FF);
}
u32 Imm12() const
{
_assert_msg_((Type == TYPE_IMM), "Imm12 not IMM");
return (Value & 0x00000FFF);
}
u32 Imm12Mod() const
{
// This is an IMM12 with the top four bits being rotation and the
// bottom eight being an IMM. This is for instructions that need to
// expand a 8bit IMM to a 32bit value and gives you some rotation as
// well.
// Each rotation rotates to the right by 2 bits
_assert_msg_((Type == TYPE_IMM), "Imm12Mod not IMM");
return ((Rotation & 0xF) << 8) | (Value & 0xFF);
}
u32 Imm16() const
{
_assert_msg_((Type == TYPE_IMM), "Imm16 not IMM");
return ( (Value & 0xF000) << 4) | (Value & 0x0FFF);
}
u32 Imm16Low() const
{
return Imm16();
}
u32 Imm16High() const // Returns high 16bits
{
_assert_msg_((Type == TYPE_IMM), "Imm16 not IMM");
return ( ((Value >> 16) & 0xF000) << 4) | ((Value >> 16) & 0x0FFF);
}
u32 Imm24() const
{
_assert_msg_((Type == TYPE_IMM), "Imm16 not IMM");
return (Value & 0x0FFFFFFF);
}
// NEON and ASIMD specific
u32 Imm8ASIMD() const
{
_assert_msg_((Type == TYPE_IMM), "Imm8ASIMD not IMM");
return ((Value & 0x80) << 17) | ((Value & 0x70) << 12) | (Value & 0xF);
}
u32 Imm8VFP() const
{
_assert_msg_((Type == TYPE_IMM), "Imm8VFP not IMM");
return ((Value & 0xF0) << 12) | (Value & 0xF);
}
};
// Use these when you don't know if an imm can be represented as an operand2.
// This lets you generate both an optimal and a fallback solution by checking
// the return value, which will be false if these fail to find a Operand2 that
// represents your 32-bit imm value.
bool TryMakeOperand2(u32 imm, Operand2 &op2);
bool TryMakeOperand2_AllowInverse(u32 imm, Operand2 &op2, bool *inverse);
bool TryMakeOperand2_AllowNegation(s32 imm, Operand2 &op2, bool *negated);
// Use this only when you know imm can be made into an Operand2.
Operand2 AssumeMakeOperand2(u32 imm);
inline Operand2 R(ARMReg Reg) { return Operand2(Reg, TYPE_REG); }
inline Operand2 IMM(u32 Imm) { return Operand2(Imm, TYPE_IMM); }
inline Operand2 Mem(void *ptr) { return Operand2((u32)(uintptr_t)ptr, TYPE_IMM); }
//usage: struct {int e;} s; STRUCT_OFFSET(s,e)
#define STRUCT_OFF(str,elem) ((u32)((u32)&(str).elem-(u32)&(str)))
struct FixupBranch
{
u8 *ptr;
u32 condition; // Remembers our codition at the time
int type; //0 = B 1 = BL
};
struct LiteralPool
{
intptr_t loc;
u8* ldr_address;
u32 val;
};
typedef const u8* JumpTarget;
// XXX: Stop polluting the global namespace
const u32 I_8 = (1 << 0);
const u32 I_16 = (1 << 1);
const u32 I_32 = (1 << 2);
const u32 I_64 = (1 << 3);
const u32 I_SIGNED = (1 << 4);
const u32 I_UNSIGNED = (1 << 5);
const u32 F_32 = (1 << 6);
const u32 I_POLYNOMIAL = (1 << 7); // Only used in VMUL/VMULL
enum VIMMMode {
VIMM___x___x = 0x0, // 0000 VMOV
VIMM__x___x_ = 0x2, // 0010
VIMM_x___x__ = 0x4, // 0100
VIMMx___x___ = 0x6, // 0110
VIMM_x_x_x_x = 0x8, // 1000
VIMMx_x_x_x_ = 0xA, // 1010
VIMM__x1__x1 = 0xC, // 1100
VIMM_x11_x11 = 0xD, // 1101
VIMMxxxxxxxx = 0xE, // 1110 // op == 0
VIMMf000f000 = 0xF, // 1111 // op == 0 ( really aBbbbbbc defgh 00000000 00000000 ) where B = NOT b
VIMMbits2bytes = 0x1E, // Bit replication into bytes! Easily created 111111111 00000000 masks!
};
u32 EncodeVd(ARMReg Vd);
u32 EncodeVn(ARMReg Vn);
u32 EncodeVm(ARMReg Vm);
u32 encodedSize(u32 value);
// Subtracts the base from the register to give us the real one
ARMReg SubBase(ARMReg Reg);
inline bool IsQ(ARMReg r) {
return r >= Q0 && r <= Q15;
}
inline bool IsD(ARMReg r) {
return r >= D0 && r <= D31;
}
// See A.7.1 in the ARMv7-A
// VMUL F32 scalars can only be up to D15[0], D15[1] - higher scalars cannot be individually addressed
ARMReg DScalar(ARMReg dreg, int subScalar);
ARMReg QScalar(ARMReg qreg, int subScalar);
inline ARMReg XScalar(ARMReg reg, int subScalar) {
if (IsQ(reg))
return QScalar(reg, subScalar);
else
return DScalar(reg, subScalar);
}
const char *ARMRegAsString(ARMReg reg);
// Get the two halves of a Q register.
inline ARMReg D_0(ARMReg q) {
if (q >= Q0 && q <= Q15) {
return ARMReg(D0 + (q - Q0) * 2);
} else if (q >= D0 && q <= D31) {
return q;
} else {
return INVALID_REG;
}
}
inline ARMReg D_1(ARMReg q) {
return ARMReg(D0 + (q - Q0) * 2 + 1);
}
enum NEONAlignment {
ALIGN_NONE = 0,
ALIGN_64 = 1,
ALIGN_128 = 2,
ALIGN_256 = 3
};
class NEONXEmitter;
class ARMXEmitter
{
friend struct OpArg; // for Write8 etc
friend class NEONXEmitter;
private:
u8 *code, *startcode;
u8 *lastCacheFlushEnd;
u32 condition;
std::vector<LiteralPool> currentLitPool;
void WriteStoreOp(u32 Op, ARMReg Rt, ARMReg Rn, Operand2 op2, bool RegAdd);
void WriteRegStoreOp(u32 op, ARMReg dest, bool WriteBack, u16 RegList);
void WriteVRegStoreOp(u32 op, ARMReg dest, bool Double, bool WriteBack, ARMReg firstreg, u8 numregs);
void WriteShiftedDataOp(u32 op, bool SetFlags, ARMReg dest, ARMReg src, ARMReg op2);
void WriteShiftedDataOp(u32 op, bool SetFlags, ARMReg dest, ARMReg src, Operand2 op2);
void WriteSignedMultiply(u32 Op, u32 Op2, u32 Op3, ARMReg dest, ARMReg r1, ARMReg r2);
void WriteVFPDataOp(u32 Op, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void Write4OpMultiply(u32 op, ARMReg destLo, ARMReg destHi, ARMReg rn, ARMReg rm);
// New Ops
void WriteInstruction(u32 op, ARMReg Rd, ARMReg Rn, Operand2 Rm, bool SetFlags = false);
void WriteVLDST1(bool load, u32 Size, ARMReg Vd, ARMReg Rn, int regCount, NEONAlignment align, ARMReg Rm);
void WriteVLDST1_lane(bool load, u32 Size, ARMReg Vd, ARMReg Rn, int lane, bool aligned, ARMReg Rm);
void WriteVimm(ARMReg Vd, int cmode, u8 imm, int op);
void EncodeShiftByImm(u32 Size, ARMReg Vd, ARMReg Vm, int shiftAmount, u8 opcode, bool quad, bool inverse, bool halve);
protected:
inline void Write32(u32 value) {*(u32*)code = value; code+=4;}
public:
ARMXEmitter() : code(0), startcode(0), lastCacheFlushEnd(0) {
condition = CC_AL << 28;
}
ARMXEmitter(u8 *code_ptr) {
code = code_ptr;
lastCacheFlushEnd = code_ptr;
startcode = code_ptr;
condition = CC_AL << 28;
}
virtual ~ARMXEmitter() {}
void SetCodePointer(u8 *ptr, u8 *writePtr);
const u8 *GetCodePointer() const;
void ReserveCodeSpace(u32 bytes);
const u8 *AlignCode16();
const u8 *AlignCodePage();
const u8 *NopAlignCode16();
void FlushIcache();
void FlushIcacheSection(u8 *start, u8 *end);
u8 *GetWritableCodePtr();
void FlushLitPool();
void AddNewLit(u32 val);
bool TrySetValue_TwoOp(ARMReg reg, u32 val);
CCFlags GetCC() { return CCFlags(condition >> 28); }
void SetCC(CCFlags cond = CC_AL);
// Special purpose instructions
// Dynamic Endian Switching
void SETEND(bool BE);
// Debug Breakpoint
void BKPT(u16 arg);
// Hint instruction
void YIELD();
// Do nothing
void NOP(int count = 1); //nop padding - TODO: fast nop slides, for amd and intel (check their manuals)
#ifdef CALL
#undef CALL
#endif
// Branching
FixupBranch B();
FixupBranch B_CC(CCFlags Cond);
void B_CC(CCFlags Cond, const void *fnptr);
FixupBranch BL();
FixupBranch BL_CC(CCFlags Cond);
void SetJumpTarget(FixupBranch const &branch);
void B (const void *fnptr);
void B (ARMReg src);
void BL(const void *fnptr);
void BL(ARMReg src);
bool BLInRange(const void *fnptr) const;
void PUSH(const int num, ...);
void POP(const int num, ...);
// New Data Ops
void AND (ARMReg Rd, ARMReg Rn, Operand2 Rm);
void ANDS(ARMReg Rd, ARMReg Rn, Operand2 Rm);
void EOR (ARMReg dest, ARMReg src, Operand2 op2);
void EORS(ARMReg dest, ARMReg src, Operand2 op2);
void SUB (ARMReg dest, ARMReg src, Operand2 op2);
void SUBS(ARMReg dest, ARMReg src, Operand2 op2);
void RSB (ARMReg dest, ARMReg src, Operand2 op2);
void RSBS(ARMReg dest, ARMReg src, Operand2 op2);
void ADD (ARMReg dest, ARMReg src, Operand2 op2);
void ADDS(ARMReg dest, ARMReg src, Operand2 op2);
void ADC (ARMReg dest, ARMReg src, Operand2 op2);
void ADCS(ARMReg dest, ARMReg src, Operand2 op2);
void LSL (ARMReg dest, ARMReg src, Operand2 op2);
void LSL (ARMReg dest, ARMReg src, ARMReg op2);
void LSLS(ARMReg dest, ARMReg src, Operand2 op2);
void LSLS(ARMReg dest, ARMReg src, ARMReg op2);
void LSR (ARMReg dest, ARMReg src, Operand2 op2);
void LSRS(ARMReg dest, ARMReg src, Operand2 op2);
void LSR (ARMReg dest, ARMReg src, ARMReg op2);
void LSRS(ARMReg dest, ARMReg src, ARMReg op2);
void ASR (ARMReg dest, ARMReg src, Operand2 op2);
void ASRS(ARMReg dest, ARMReg src, Operand2 op2);
void ASR (ARMReg dest, ARMReg src, ARMReg op2);
void ASRS(ARMReg dest, ARMReg src, ARMReg op2);
void SBC (ARMReg dest, ARMReg src, Operand2 op2);
void SBCS(ARMReg dest, ARMReg src, Operand2 op2);
void RBIT(ARMReg dest, ARMReg src);
void REV (ARMReg dest, ARMReg src);
void REV16 (ARMReg dest, ARMReg src);
void RSC (ARMReg dest, ARMReg src, Operand2 op2);
void RSCS(ARMReg dest, ARMReg src, Operand2 op2);
void TST ( ARMReg src, Operand2 op2);
void TEQ ( ARMReg src, Operand2 op2);
void CMP ( ARMReg src, Operand2 op2);
void CMN ( ARMReg src, Operand2 op2);
void ORR (ARMReg dest, ARMReg src, Operand2 op2);
void ORRS(ARMReg dest, ARMReg src, Operand2 op2);
void MOV (ARMReg dest, Operand2 op2);
void MOVS(ARMReg dest, Operand2 op2);
void BIC (ARMReg dest, ARMReg src, Operand2 op2); // BIC = ANDN
void BICS(ARMReg dest, ARMReg src, Operand2 op2);
void MVN (ARMReg dest, Operand2 op2);
void MVNS(ARMReg dest, Operand2 op2);
void MOVW(ARMReg dest, Operand2 op2);
void MOVT(ARMReg dest, Operand2 op2, bool TopBits = false);
// UDIV and SDIV are only available on CPUs that have
// the idiva hardare capacity
void UDIV(ARMReg dest, ARMReg dividend, ARMReg divisor);
void SDIV(ARMReg dest, ARMReg dividend, ARMReg divisor);
void MUL (ARMReg dest, ARMReg src, ARMReg op2);
void MULS(ARMReg dest, ARMReg src, ARMReg op2);
void UMULL(ARMReg destLo, ARMReg destHi, ARMReg rn, ARMReg rm);
void SMULL(ARMReg destLo, ARMReg destHi, ARMReg rn, ARMReg rm);
void UMLAL(ARMReg destLo, ARMReg destHi, ARMReg rn, ARMReg rm);
void SMLAL(ARMReg destLo, ARMReg destHi, ARMReg rn, ARMReg rm);
void SXTB(ARMReg dest, ARMReg op2);
void SXTH(ARMReg dest, ARMReg op2, u8 rotation = 0);
void SXTAH(ARMReg dest, ARMReg src, ARMReg op2, u8 rotation = 0);
void BFI(ARMReg rd, ARMReg rn, u8 lsb, u8 width);
void BFC(ARMReg rd, u8 lsb, u8 width);
void UBFX(ARMReg dest, ARMReg op2, u8 lsb, u8 width);
void SBFX(ARMReg dest, ARMReg op2, u8 lsb, u8 width);
void CLZ(ARMReg rd, ARMReg rm);
void PLD(ARMReg rd, int offset, bool forWrite = false);
// Using just MSR here messes with our defines on the PPC side of stuff (when this code was in dolphin...)
// Just need to put an underscore here, bit annoying.
void _MSR (bool nzcvq, bool g, Operand2 op2);
void _MSR (bool nzcvq, bool g, ARMReg src);
void MRS (ARMReg dest);
// Memory load/store operations
void LDR (ARMReg dest, ARMReg base, Operand2 op2 = 0, bool RegAdd = true);
void LDRB (ARMReg dest, ARMReg base, Operand2 op2 = 0, bool RegAdd = true);
void LDRH (ARMReg dest, ARMReg base, Operand2 op2 = 0, bool RegAdd = true);
void LDRSB(ARMReg dest, ARMReg base, Operand2 op2 = 0, bool RegAdd = true);
void LDRSH(ARMReg dest, ARMReg base, Operand2 op2 = 0, bool RegAdd = true);
void STR (ARMReg result, ARMReg base, Operand2 op2 = 0, bool RegAdd = true);
void STRB (ARMReg result, ARMReg base, Operand2 op2 = 0, bool RegAdd = true);
void STRH (ARMReg result, ARMReg base, Operand2 op2 = 0, bool RegAdd = true);
void STMFD(ARMReg dest, bool WriteBack, const int Regnum, ...);
void LDMFD(ARMReg dest, bool WriteBack, const int Regnum, ...);
void STMIA(ARMReg dest, bool WriteBack, const int Regnum, ...);
void LDMIA(ARMReg dest, bool WriteBack, const int Regnum, ...);
void STM(ARMReg dest, bool Add, bool Before, bool WriteBack, const int Regnum, ...);
void LDM(ARMReg dest, bool Add, bool Before, bool WriteBack, const int Regnum, ...);
void STMBitmask(ARMReg dest, bool Add, bool Before, bool WriteBack, const u16 RegList);
void LDMBitmask(ARMReg dest, bool Add, bool Before, bool WriteBack, const u16 RegList);
// Exclusive Access operations
void LDREX(ARMReg dest, ARMReg base);
// result contains the result if the instruction managed to store the value
void STREX(ARMReg result, ARMReg base, ARMReg op);
void DMB ();
void SVC(Operand2 op);
// NEON and ASIMD instructions
// None of these will be created with conditional since ARM
// is deprecating conditional execution of ASIMD instructions.
// ASIMD instructions don't even have a conditional encoding.
// NEON Only
void VABD(IntegerSize size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VADD(IntegerSize size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VSUB(IntegerSize size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
// VFP Only
void VLDMIA(ARMReg dest, bool WriteBack, ARMReg firstreg, int numregs);
void VSTMIA(ARMReg dest, bool WriteBack, ARMReg firstreg, int numregs);
void VLDMDB(ARMReg dest, bool WriteBack, ARMReg firstreg, int numregs);
void VSTMDB(ARMReg dest, bool WriteBack, ARMReg firstreg, int numregs);
void VPUSH(ARMReg firstvreg, int numvregs) {
VSTMDB(R_SP, true, firstvreg, numvregs);
}
void VPOP(ARMReg firstvreg, int numvregs) {
VLDMIA(R_SP, true, firstvreg, numvregs);
}
void VLDR(ARMReg Dest, ARMReg Base, s16 offset);
void VSTR(ARMReg Src, ARMReg Base, s16 offset);
void VCMP(ARMReg Vd, ARMReg Vm);
void VCMPE(ARMReg Vd, ARMReg Vm);
// Compares against zero
void VCMP(ARMReg Vd);
void VCMPE(ARMReg Vd);
void VNMLA(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VNMLS(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VNMUL(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VDIV(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VSQRT(ARMReg Vd, ARMReg Vm);
// NEON and VFP
void VADD(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VSUB(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VABS(ARMReg Vd, ARMReg Vm);
void VNEG(ARMReg Vd, ARMReg Vm);
void VMUL(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VMLA(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VMLS(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VMOV(ARMReg Dest, Operand2 op2);
void VMOV(ARMReg Dest, ARMReg Src, bool high);
void VMOV(ARMReg Dest, ARMReg Src);
// Either Vd, Rt, Rt2 or Rt, Rt2, Vd.
void VMOV(ARMReg Dest, ARMReg Src1, ARMReg Src2);
void VCVT(ARMReg Dest, ARMReg Src, int flags);
// NEON, need to check for this (supported if VFP4 is supported)
void VCVTF32F16(ARMReg Dest, ARMReg Src);
void VCVTF16F32(ARMReg Dest, ARMReg Src);
void VABA(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VABAL(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VABD(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VABDL(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VABS(u32 Size, ARMReg Vd, ARMReg Vm);
void VACGE(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VACGT(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VACLE(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VACLT(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VADD(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VADDHN(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VADDL(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VADDW(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VBIF(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VBIT(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VBSL(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VCEQ(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VCEQ(u32 Size, ARMReg Vd, ARMReg Vm);
void VCGE(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VCGE(u32 Size, ARMReg Vd, ARMReg Vm);
void VCGT(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VCGT(u32 Size, ARMReg Vd, ARMReg Vm);
void VCLE(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VCLE(u32 Size, ARMReg Vd, ARMReg Vm);
void VCLS(u32 Size, ARMReg Vd, ARMReg Vm);
void VCLT(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VCLT(u32 Size, ARMReg Vd, ARMReg Vm);
void VCLZ(u32 Size, ARMReg Vd, ARMReg Vm);
void VCNT(u32 Size, ARMReg Vd, ARMReg Vm);
void VDUP(u32 Size, ARMReg Vd, ARMReg Vm, u8 index);
void VDUP(u32 Size, ARMReg Vd, ARMReg Rt);
void VEXT(ARMReg Vd, ARMReg Vn, ARMReg Vm, u8 index);
void VFMA(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VFMS(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VHADD(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VHSUB(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VMAX(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VMIN(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
// Three registers
void VMLA(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VMLS(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VMLAL(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VMLSL(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VMUL(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VMULL(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VQDMLAL(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VQDMLSL(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VQDMULH(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VQDMULL(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VQRDMULH(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
// Two registers and a scalar
// These two are super useful for matrix multiplication
void VMUL_scalar(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VMLA_scalar(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
// TODO:
/*
void VMLS_scalar(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VMLAL_scalar(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VMLSL_scalar(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VMULL_scalar(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VQDMLAL_scalar(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VQDMLSL_scalar(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VQDMULH_scalar(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VQDMULL_scalar(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VQRDMULH_scalar(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
*/
// Vector bitwise. These don't have an element size for obvious reasons.
void VAND(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VBIC(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VEOR(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VORN(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VORR(ARMReg Vd, ARMReg Vn, ARMReg Vm);
inline void VMOV_neon(ARMReg Dest, ARMReg Src) {
VORR(Dest, Src, Src);
}
void VMOV_neon(u32 Size, ARMReg Vd, u32 imm);
void VMOV_neon(u32 Size, ARMReg Vd, float imm) {
_dbg_assert_msg_(Size == F_32, "Expecting F_32 immediate for VMOV_neon float arg.");
union {
float f;
u32 u;
} val;
val.f = imm;
VMOV_neon(I_32, Vd, val.u);
}
void VMOV_neon(u32 Size, ARMReg Vd, ARMReg Rt, int lane);
void VNEG(u32 Size, ARMReg Vd, ARMReg Vm);
void VMVN(ARMReg Vd, ARMReg Vm);
void VPADAL(u32 Size, ARMReg Vd, ARMReg Vm);
void VPADD(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VPADDL(u32 Size, ARMReg Vd, ARMReg Vm);
void VPMAX(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VPMIN(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VQABS(u32 Size, ARMReg Vd, ARMReg Vm);
void VQADD(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VQNEG(u32 Size, ARMReg Vd, ARMReg Vm);
void VQRSHL(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VQSHL(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VQSUB(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VRADDHN(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VRECPE(u32 Size, ARMReg Vd, ARMReg Vm);
void VRECPS(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VRHADD(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VRSHL(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VRSQRTE(u32 Size, ARMReg Vd, ARMReg Vm);
void VRSQRTS(ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VRSUBHN(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VSHL(u32 Size, ARMReg Vd, ARMReg Vm, ARMReg Vn); // Register shift
void VSUB(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VSUBHN(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VSUBL(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VSUBW(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VSWP(ARMReg Vd, ARMReg Vm);
void VTRN(u32 Size, ARMReg Vd, ARMReg Vm);
void VTST(u32 Size, ARMReg Vd, ARMReg Vn, ARMReg Vm);
void VUZP(u32 Size, ARMReg Vd, ARMReg Vm);
void VZIP(u32 Size, ARMReg Vd, ARMReg Vm);
void VREVX(u32 size, u32 Size, ARMReg Vd, ARMReg Vm);
void VREV64(u32 Size, ARMReg Vd, ARMReg Vm);
void VREV32(u32 Size, ARMReg Vd, ARMReg Vm);
void VREV16(u32 Size, ARMReg Vd, ARMReg Vm);
// NEON immediate instructions
void VMOV_imm(u32 Size, ARMReg Vd, VIMMMode type, int imm);
void VMOV_immf(ARMReg Vd, float value); // This only works with a select few values (1.0f and -1.0f).
void VORR_imm(u32 Size, ARMReg Vd, VIMMMode type, int imm);
void VMVN_imm(u32 Size, ARMReg Vd, VIMMMode type, int imm);
void VBIC_imm(u32 Size, ARMReg Vd, VIMMMode type, int imm);
// Widening and narrowing moves
void VMOVL(u32 Size, ARMReg Vd, ARMReg Vm);
void VMOVN(u32 Size, ARMReg Vd, ARMReg Vm);
void VQMOVN(u32 Size, ARMReg Vd, ARMReg Vm);
void VQMOVUN(u32 Size, ARMReg Vd, ARMReg Vm);
// Shifts by immediate
void VSHL(u32 Size, ARMReg Vd, ARMReg Vm, int shiftAmount);
void VSHLL(u32 Size, ARMReg Vd, ARMReg Vm, int shiftAmount); // widening
void VSHR(u32 Size, ARMReg Vd, ARMReg Vm, int shiftAmount);
void VSHRN(u32 Size, ARMReg Vd, ARMReg Vm, int shiftAmount); // narrowing
// Vector VCVT
void VCVT(u32 DestSize, ARMReg Dest, ARMReg Src);
// Notes:
// Rm == R_PC is interpreted as no offset, otherwise, effective address is sum of Rn and Rm
// Rm == R13 is interpreted as VLD1, .... [Rn]! Added a REG_UPDATE pseudo register.
// Load/store multiple registers full of elements (a register is a D register)
// Specifying alignment when it can be guaranteed is documented to improve load/store performance.
// For example, when loading a set of four 64-bit registers that we know is 32-byte aligned, we should specify ALIGN_256.
void VLD1(u32 Size, ARMReg Vd, ARMReg Rn, int regCount, NEONAlignment align = ALIGN_NONE, ARMReg Rm = R_PC);
void VST1(u32 Size, ARMReg Vd, ARMReg Rn, int regCount, NEONAlignment align = ALIGN_NONE, ARMReg Rm = R_PC);
// Load/store single lanes of D registers
void VLD1_lane(u32 Size, ARMReg Vd, ARMReg Rn, int lane, bool aligned, ARMReg Rm = R_PC);
void VST1_lane(u32 Size, ARMReg Vd, ARMReg Rn, int lane, bool aligned, ARMReg Rm = R_PC);
// Load one value into all lanes of a D or a Q register (either supported, all formats should work).
void VLD1_all_lanes(u32 Size, ARMReg Vd, ARMReg Rn, bool aligned, ARMReg Rm = R_PC);
/*
// Deinterleave two loads... or something. TODO
void VLD2(u32 Size, ARMReg Vd, ARMReg Rn, int regCount, NEONAlignment align = ALIGN_NONE, ARMReg Rm = R_PC);
void VST2(u32 Size, ARMReg Vd, ARMReg Rn, int regCount, NEONAlignment align = ALIGN_NONE, ARMReg Rm = R_PC);
void VLD2_lane(u32 Size, ARMReg Vd, ARMReg Rn, int lane, ARMReg Rm = R_PC);
void VST2_lane(u32 Size, ARMReg Vd, ARMReg Rn, int lane, ARMReg Rm = R_PC);
void VLD3(u32 Size, ARMReg Vd, ARMReg Rn, int regCount, NEONAlignment align = ALIGN_NONE, ARMReg Rm = R_PC);
void VST3(u32 Size, ARMReg Vd, ARMReg Rn, int regCount, NEONAlignment align = ALIGN_NONE, ARMReg Rm = R_PC);
void VLD3_lane(u32 Size, ARMReg Vd, ARMReg Rn, int lane, ARMReg Rm = R_PC);
void VST3_lane(u32 Size, ARMReg Vd, ARMReg Rn, int lane, ARMReg Rm = R_PC);
void VLD4(u32 Size, ARMReg Vd, ARMReg Rn, int regCount, NEONAlignment align = ALIGN_NONE, ARMReg Rm = R_PC);
void VST4(u32 Size, ARMReg Vd, ARMReg Rn, int regCount, NEONAlignment align = ALIGN_NONE, ARMReg Rm = R_PC);
void VLD4_lane(u32 Size, ARMReg Vd, ARMReg Rn, int lane, ARMReg Rm = R_PC);
void VST4_lane(u32 Size, ARMReg Vd, ARMReg Rn, int lane, ARMReg Rm = R_PC);
*/
void VMRS_APSR();
void VMRS(ARMReg Rt);
void VMSR(ARMReg Rt);
void QuickCallFunction(ARMReg scratchreg, const void *func);
template <typename T> void QuickCallFunction(ARMReg scratchreg, T func) {
QuickCallFunction(scratchreg, (const void *)func);
}
// Wrapper around MOVT/MOVW with fallbacks.
void MOVI2R(ARMReg reg, u32 val, bool optimize = true);
void MOVI2FR(ARMReg dest, float val, bool negate = false);
void MOVI2F(ARMReg dest, float val, ARMReg tempReg, bool negate = false);
void MOVI2F_neon(ARMReg dest, float val, ARMReg tempReg, bool negate = false);
// Load pointers without casting
template <class T> void MOVP2R(ARMReg reg, T *val) {
MOVI2R(reg, (u32)(uintptr_t)(void *)val);
}
void MOVIU2F(ARMReg dest, u32 val, ARMReg tempReg, bool negate = false) {
union {
u32 u;
float f;
} v = {val};
MOVI2F(dest, v.f, tempReg, negate);
}
void ADDI2R(ARMReg rd, ARMReg rs, u32 val, ARMReg scratch);
bool TryADDI2R(ARMReg rd, ARMReg rs, u32 val);
void SUBI2R(ARMReg rd, ARMReg rs, u32 val, ARMReg scratch);
bool TrySUBI2R(ARMReg rd, ARMReg rs, u32 val);
void ANDI2R(ARMReg rd, ARMReg rs, u32 val, ARMReg scratch);
bool TryANDI2R(ARMReg rd, ARMReg rs, u32 val);
void CMPI2R(ARMReg rs, u32 val, ARMReg scratch);
bool TryCMPI2R(ARMReg rs, u32 val);
void TSTI2R(ARMReg rs, u32 val, ARMReg scratch);
bool TryTSTI2R(ARMReg rs, u32 val);
void ORI2R(ARMReg rd, ARMReg rs, u32 val, ARMReg scratch);
bool TryORI2R(ARMReg rd, ARMReg rs, u32 val);
void EORI2R(ARMReg rd, ARMReg rs, u32 val, ARMReg scratch);
bool TryEORI2R(ARMReg rd, ARMReg rs, u32 val);
}; // class ARMXEmitter
// Everything that needs to generate machine code should inherit from this.
// You get memory management for free, plus, you can use all the MOV etc functions without
// having to prefix them with gen-> or something similar.
class ARMXCodeBlock : public CodeBlock<ARMXEmitter> {
public:
void PoisonMemory(int offset) override;
};
// VFP Specific
struct VFPEnc {
s16 opc1;
s16 opc2;
};
extern const VFPEnc VFPOps[16][2];
extern const char *VFPOpNames[16];
} // namespace