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[AArch64-emitter] Initial work on a emitter for 64bit ARM. 

I've tested a few instruction encodings and am expecting most to work as long as one stays away from VFP/SIMD.
This implements mostly instructions to bring up an initial JIT with integer support.
This can be improved to allow ease of use functions in the future, dealing with the raw imms/immr encodings is probably the worst thing ever.
This commit is contained in:
Ryan Houdek 2014-02-05 01:56:23 +00:00 committed by Ryan Houdek
parent 562c0d7ad7
commit f107b5e176
4 changed files with 1925 additions and 22 deletions
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1360
Source/Core/Common/Arm64Emitter.cpp Normal file
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Source/Core/Common/Arm64Emitter.h Normal file
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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#pragma once
#include "Common/ArmCommon.h"
#include "Common/CodeBlock.h"
#include "Common/Common.h"
namespace Arm64Gen
{
// X30 serves a dual purpose as a link register
// Encoded as <u3:type><u5:reg>
// Types:
// 000 - 32bit GPR
// 001 - 64bit GPR
// 010 - VFP single precision
// 100 - VFP double precision
// 110 - VFP quad precision
enum ARM64Reg
{
// 32bit registers
W0 = 0, W1, W2, W3, W4, W5, W6,
W7, W8, W9, W10, W11, W12, W13, W14,
W15, W16, W17, W18, W19, W20, W21, W22,
W23, W24, W25, W26, W27, W28, W29, W30,
WSP, // 32bit stack pointer
// 64bit registers
X0 = 0x20, X1, X2, X3, X4, X5, X6,
X7, X8, X9, X10, X11, X12, X13, X14,
X15, X16, X17, X18, X19, X20, X21, X22,
X23, X24, X25, X26, X27, X28, X29, X30,
SP, // 64bit stack pointer
// VFP single precision registers
S0 = 0x40, 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 = 0x80, 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 = 0xC0, Q1, Q2, Q3, Q4, Q5, Q6, Q7,
Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15,
Q16, Q17, Q18, Q19, Q20, Q21, Q22, Q23,
Q24, Q25, Q26, Q27, Q28, Q29, Q30, Q31,
// For PRFM(prefetch memory) encoding
// This is encoded in the Rt register
// Data preload
PLDL1KEEP = 0, PLDL1STRM,
PLDL2KEEP, PLDL2STRM,
PLDL3KEEP, PLDL3STRM,
// Instruction preload
PLIL1KEEP = 8, PLIL1STRM,
PLIL2KEEP, PLIL2STRM,
PLIL3KEEP, PLIL3STRM,
// Prepare for store
PLTL1KEEP = 16, PLTL1STRM,
PLTL2KEEP, PLTL2STRM,
PLTL3KEEP, PLTL3STRM,
INVALID_REG = 0xFFFFFFFF
};
inline bool is64Bit(ARM64Reg reg) { return reg & 0x20; }
inline bool is128Bit(ARM64Reg reg) { return reg & 0xC0; }
inline bool isVector(ARM64Reg reg) { return (reg & 0xC0) != 0; }
inline ARM64Reg DecodeReg(ARM64Reg reg) { return (ARM64Reg)(reg & 0x1F); }
inline ARM64Reg EncodeRegTo64(ARM64Reg reg) { return (ARM64Reg)(reg | 0x20); }
enum OpType
{
TYPE_IMM = 0,
TYPE_REG,
TYPE_IMMSREG,
TYPE_RSR,
TYPE_MEM
};
enum ShiftType
{
ST_LSL = 0,
ST_LSR = 1,
ST_ASR = 2,
ST_ROR = 3,
};
enum IndexType
{
INDEX_UNSIGNED,
INDEX_POST,
INDEX_PRE,
};
enum ShiftAmount
{
SHIFT_0 = 0,
SHIFT_16 = 1,
SHIFT_32 = 2,
SHIFT_48 = 3,
};
enum ExtendType
{
EXTEND_UXTW = 2,
EXTEND_LSL = 3, // Default for zero shift amount
EXTEND_SXTW = 6,
EXTEND_SXTX = 7,
};
struct FixupBranch
{
u8 *ptr;
// Type defines
// 0 = CBZ (32bit)
// 1 = CBNZ (32bit)
// 2 = B (conditional)
// 3 = TBZ
// 4 = TBNZ
// 5 = B (unconditional)
// 6 = BL (unconditional)
u32 type;
// Used with B.cond
CCFlags cond;
// Used with TBZ/TBNZ
u8 bit;
// Used with Test/Compare and Branch
ARM64Reg reg;
};
enum PStateField
{
FIELD_SPSel = 0,
FIELD_DAIFSet,
FIELD_DAIFClr,
};
enum SystemHint
{
HINT_NOP = 0,
HINT_YIELD,
HINT_WFE,
HINT_WFI,
HINT_SEV,
HINT_SEVL,
};
enum BarrierType
{
OSHLD = 1,
OSHST = 2,
OSH = 3,
NSHLD = 5,
NSHST = 6,
NSH = 7,
ISHLD = 9,
ISHST = 10,
ISH = 11,
LD = 13,
ST = 14,
SY = 15,
};
class ArithOption
{
public:
enum WidthSpecifier {
WIDTH_DEFAULT,
WIDTH_32BIT,
WIDTH_64BIT,
};
enum ExtendSpecifier {
EXTEND_UXTB = 0x0,
EXTEND_UXTH = 0x1,
EXTEND_UXTW = 0x2, /* Also LSL on 32bit width */
EXTEND_UXTX = 0x3, /* Also LSL on 64bit width */
EXTEND_SXTB = 0x4,
EXTEND_SXTH = 0x5,
EXTEND_SXTW = 0x6,
EXTEND_SXTX = 0x7,
};
enum TypeSpecifier {
TYPE_EXTENDEDREG,
TYPE_IMM,
TYPE_SHIFTEDREG,
};
private:
ARM64Reg _destReg;
WidthSpecifier _width;
ExtendSpecifier _extend;
TypeSpecifier _type;
ShiftType _shifttype;
u32 _shift;
public:
ArithOption(ARM64Reg Rd)
{
_destReg = Rd;
_shift = 0;
_type = TYPE_EXTENDEDREG;
if (is64Bit(Rd))
{
_width = WIDTH_64BIT;
_extend = EXTEND_UXTX;
}
else
{
_width = WIDTH_32BIT;
_extend = EXTEND_UXTW;
}
}
ArithOption(ARM64Reg Rd, ShiftType ShiftType, u32 Shift)
{
_destReg = Rd;
_shift = Shift;
_shifttype = ShiftType;
_type = TYPE_SHIFTEDREG;
if (is64Bit(Rd))
_width = WIDTH_64BIT;
else
_width = WIDTH_32BIT;
}
TypeSpecifier GetType()
{
return _type;
}
u32 GetData()
{
switch (_type)
{
case TYPE_EXTENDEDREG:
return (_width == WIDTH_64BIT ? (1 << 31) : 0) |
(_extend << 13) |
(_shift << 10);
break;
case TYPE_SHIFTEDREG:
return (_width == WIDTH_64BIT ? (1 << 31) : 0) |
(_shifttype << 22) |
(_shift << 10);
break;
default:
_dbg_assert_msg_(DYNA_REC, false, "Invalid type in GetData");
break;
}
return 0;
}
};
class ARM64XEmitter
{
private:
u8 *code, *startcode;
u8 *lastCacheFlushEnd;
void EncodeCompareBranchInst(u32 op, ARM64Reg Rt, const void* ptr);
void EncodeTestBranchInst(u32 op, ARM64Reg Rt, u8 bits, const void* ptr);
void EncodeUnconditionalBranchInst(u32 op, const void* ptr);
void EncodeUnconditionalBranchInst(u32 opc, u32 op2, u32 op3, u32 op4, ARM64Reg Rn);
void EncodeExceptionInst(u32 instenc, u32 imm);
void EncodeSystemInst(u32 op0, u32 op1, u32 CRn, u32 CRm, u32 op2, ARM64Reg Rt);
void EncodeArithmeticInst(u32 instenc, bool flags, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Option);
void EncodeArithmeticCarryInst(u32 op, bool flags, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void EncodeCondCompareImmInst(u32 op, ARM64Reg Rn, u32 imm, u32 nzcv, CCFlags cond);
void EncodeCondCompareRegInst(u32 op, ARM64Reg Rn, ARM64Reg Rm, u32 nzcv, CCFlags cond);
void EncodeCondSelectInst(u32 instenc, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, CCFlags cond);
void EncodeData1SrcInst(u32 instenc, ARM64Reg Rd, ARM64Reg Rn);
void EncodeData2SrcInst(u32 instenc, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void EncodeData3SrcInst(u32 instenc, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra);
void EncodeLogicalInst(u32 instenc, ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift);
void EncodeLoadRegisterInst(u32 bitop, ARM64Reg Rt, u32 imm);
void EncodeLoadStoreExcInst(u32 instenc, ARM64Reg Rs, ARM64Reg Rt2, ARM64Reg Rn, ARM64Reg Rt);
void EncodeLoadStorePairedInst(u32 op, ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn, u32 imm);
void EncodeLoadStoreIndexedInst(u32 op, u32 op2, ARM64Reg Rt, ARM64Reg Rn, u32 imm);
void EncodeLoadStoreIndexedInst(u32 op, ARM64Reg Rt, ARM64Reg Rn, u32 imm);
void EncodeMOVWideInst(u32 op, ARM64Reg Rd, u32 imm, ShiftAmount pos);
void EncodeBitfieldMOVInst(u32 op, ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms);
void EncodeLoadStoreRegisterOffset(u32 size, u32 opc, ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend);
void EncodeAddSubImmInst(u32 op, bool flags, u32 shift, u32 imm, ARM64Reg Rn, ARM64Reg Rd);
void EncodeLogicalImmInst(u32 op, ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms);
protected:
inline void Write32(u32 value) {*(u32*)code = value; code+=4;}
public:
ARM64XEmitter() : code(0), startcode(0), lastCacheFlushEnd(0) {}
virtual ~ARM64XEmitter() {}
void SetCodePtr(u8 *ptr);
void ReserveCodeSpace(u32 bytes);
const u8 *AlignCode16();
const u8 *AlignCodePage();
const u8 *GetCodePtr() const;
void FlushIcache();
void FlushIcacheSection(u8 *start, u8 *end);
u8 *GetWritableCodePtr();
// FixupBranch branching
void SetJumpTarget(FixupBranch const &branch);
FixupBranch CBZ(ARM64Reg Rt);
FixupBranch CBNZ(ARM64Reg Rt);
FixupBranch B(CCFlags cond);
FixupBranch TBZ(ARM64Reg Rt, u8 bit);
FixupBranch TBNZ(ARM64Reg Rt, u8 bit);
FixupBranch B();
FixupBranch BL();
// Compare and Branch
void CBZ(ARM64Reg Rt, const void* ptr);
void CBNZ(ARM64Reg Rt, const void* ptr);
// Conditional Branch
void B(CCFlags cond, const void* ptr);
// Test and Branch
void TBZ(ARM64Reg Rt, u8 bits, const void* ptr);
void TBNZ(ARM64Reg Rt, u8 bits, const void* ptr);
// Unconditional Branch
void B(const void *ptr);
void BL(const void *ptr);
// Unconditional Branch (register)
void BR(ARM64Reg Rn);
void BLR(ARM64Reg Rn);
void RET(ARM64Reg Rn);
void ERET();
void DRPS();
// Exception generation
void SVC(u32 imm);
void HVC(u32 imm);
void SMC(u32 imm);
void BRK(u32 imm);
void HLT(u32 imm);
void DCPS1(u32 imm);
void DCPS2(u32 imm);
void DCPS3(u32 imm);
// System
void _MSR(PStateField field, u8 imm);
void HINT(SystemHint op);
void CLREX();
void DSB(BarrierType type);
void DMB(BarrierType type);
void ISB(BarrierType type);
// Add/Subtract (Extended/Shifted register)
void ADD(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void ADD(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Option);
void ADDS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void ADDS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Option);
void SUB(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void SUB(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Option);
void SUBS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void SUBS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Option);
void CMN(ARM64Reg Rn, ARM64Reg Rm);
void CMN(ARM64Reg Rn, ARM64Reg Rm, ArithOption Option);
void CMP(ARM64Reg Rn, ARM64Reg Rm);
void CMP(ARM64Reg Rn, ARM64Reg Rm, ArithOption Option);
// Add/Subtract (with carry)
void ADC(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void ADCS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void SBC(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void SBCS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
// Conditional Compare (immediate)
void CCMN(ARM64Reg Rn, u32 imm, u32 nzcv, CCFlags cond);
void CCMP(ARM64Reg Rn, u32 imm, u32 nzcv, CCFlags cond);
// Conditional Compare (register)
void CCMN(ARM64Reg Rn, ARM64Reg Rm, u32 nzcv, CCFlags cond);
void CCMP(ARM64Reg Rn, ARM64Reg Rm, u32 nzcv, CCFlags cond);
// Conditional Select
void CSEL(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, CCFlags cond);
void CSINC(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, CCFlags cond);
void CSINV(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, CCFlags cond);
void CSNEG(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, CCFlags cond);
// Data-Processing 1 source
void RBIT(ARM64Reg Rd, ARM64Reg Rn);
void REV16(ARM64Reg Rd, ARM64Reg Rn);
void REV32(ARM64Reg Rd, ARM64Reg Rn);
void REV64(ARM64Reg Rd, ARM64Reg Rn);
void CLZ(ARM64Reg Rd, ARM64Reg Rn);
void CLS(ARM64Reg Rd, ARM64Reg Rn);
// Data-Processing 2 source
void UDIV(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void SDIV(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void LSLV(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void LSRV(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void ASRV(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void RORV(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void CRC32B(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void CRC32H(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void CRC32W(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void CRC32CB(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void CRC32CH(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void CRC32CW(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void CRC32X(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
void CRC32CX(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm);
// Data-Processing 3 source
void MADD(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra);
void MSUB(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra);
void SMADDL(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra);
void SMSUBL(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra);
void SMULH(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra);
void UMADDL(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra);
void UMSUBL(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra);
void UMULH(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ARM64Reg Ra);
// Logical (shifted register)
void AND(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift);
void BIC(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift);
void ORR(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift);
void ORN(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift);
void EOR(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift);
void EON(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift);
void ANDS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift);
void BICS(ARM64Reg Rd, ARM64Reg Rn, ARM64Reg Rm, ArithOption Shift);
// Logical (immediate)
void AND(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms);
void ANDS(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms);
void EOR(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms);
void ORR(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms);
void TST(ARM64Reg Rn, u32 immr, u32 imms);
// Add/subtract (immediate)
void ADD(ARM64Reg Rd, ARM64Reg Rn, u32 imm, bool shift = false);
void ADDS(ARM64Reg Rd, ARM64Reg Rn, u32 imm, bool shift = false);
void SUB(ARM64Reg Rd, ARM64Reg Rn, u32 imm, bool shift = false);
void SUBS(ARM64Reg Rd, ARM64Reg Rn, u32 imm, bool shift = false);
void CMP(ARM64Reg Rn, u32 imm, bool shift = false);
// Data Processing (Immediate)
void MOVZ(ARM64Reg Rd, u32 imm, ShiftAmount pos = SHIFT_0);
void MOVN(ARM64Reg Rd, u32 imm, ShiftAmount pos = SHIFT_0);
void MOVK(ARM64Reg Rd, u32 imm, ShiftAmount pos = SHIFT_0);
// Bitfield move
void BFM(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms);
void SBFM(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms);
void UBFM(ARM64Reg Rd, ARM64Reg Rn, u32 immr, u32 imms);
// Load Register (Literal)
void LDR(ARM64Reg Rt, u32 imm);
void LDRSW(ARM64Reg Rt, u32 imm);
void PRFM(ARM64Reg Rt, u32 imm);
// Load/Store Exclusive
void STXRB(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rn);
void STLXRB(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rn);
void LDXRB(ARM64Reg Rt, ARM64Reg Rn);
void LDAXRB(ARM64Reg Rt, ARM64Reg Rn);
void STLRB(ARM64Reg Rt, ARM64Reg Rn);
void LDARB(ARM64Reg Rt, ARM64Reg Rn);
void STXRH(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rn);
void STLXRH(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rn);
void LDXRH(ARM64Reg Rt, ARM64Reg Rn);
void LDAXRH(ARM64Reg Rt, ARM64Reg Rn);
void STLRH(ARM64Reg Rt, ARM64Reg Rn);
void LDARH(ARM64Reg Rt, ARM64Reg Rn);
void STXR(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rn);
void STLXR(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rn);
void STXP(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn);
void STLXP(ARM64Reg Rs, ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn);
void LDXR(ARM64Reg Rt, ARM64Reg Rn);
void LDAXR(ARM64Reg Rt, ARM64Reg Rn);
void LDXP(ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn);
void LDAXP(ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn);
void STLR(ARM64Reg Rt, ARM64Reg Rn);
void LDAR(ARM64Reg Rt, ARM64Reg Rn);
// Load/Store no-allocate pair (offset)
void STNP(ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn, u32 imm);
void LDNP(ARM64Reg Rt, ARM64Reg Rt2, ARM64Reg Rn, u32 imm);
// Load/Store register (immediate indexed)
void STRB(IndexType type, ARM64Reg Rt, ARM64Reg Rn, u32 imm);
void LDRB(IndexType type, ARM64Reg Rt, ARM64Reg Rn, u32 imm);
void LDRSB(IndexType type, ARM64Reg Rt, ARM64Reg Rn, u32 imm);
void STRH(IndexType type, ARM64Reg Rt, ARM64Reg Rn, u32 imm);
void LDRH(IndexType type, ARM64Reg Rt, ARM64Reg Rn, u32 imm);
void LDRSH(IndexType type, ARM64Reg Rt, ARM64Reg Rn, u32 imm);
void STR(IndexType type, ARM64Reg Rt, ARM64Reg Rn, u32 imm);
void LDR(IndexType type, ARM64Reg Rt, ARM64Reg Rn, u32 imm);
void LDRSW(IndexType type, ARM64Reg Rt, ARM64Reg Rn, u32 imm);
// Load/Store register (register offset)
void STRB(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend = EXTEND_LSL);
void LDRB(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend = EXTEND_LSL);
void LDRSB(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend = EXTEND_LSL);
void STRH(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend = EXTEND_LSL);
void LDRH(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend = EXTEND_LSL);
void LDRSH(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend = EXTEND_LSL);
void STR(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend = EXTEND_LSL);
void LDR(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend = EXTEND_LSL);
void LDRSW(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend = EXTEND_LSL);
void PRFM(ARM64Reg Rt, ARM64Reg Rn, ARM64Reg Rm, ExtendType extend = EXTEND_LSL);
// Wrapper around MOVZ+MOVK
void MOVI2R(ARM64Reg Rd, u64 imm, bool optimize = true);
};
class ARM64CodeBlock : public CodeBlock<ARM64XEmitter>
{
private:
void PoisonMemory() override
{
u32* ptr = (u32*)region;
u32* maxptr = (u32*)region + region_size;
// If our memory isn't a multiple of u32 then this won't write the last remaining bytes with anything
// Less than optimal, but there would be nothing we could do but throw a runtime warning anyway.
// AArch64: 0xD4200000 = BRK 0
while (ptr < maxptr)
*ptr++ = 0xD4200000;
}
};
}

26
Source/Core/Common/ArmCommon.h Normal file
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@ -0,0 +1,26 @@
// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
enum CCFlags
{
CC_EQ = 0, // Equal
CC_NEQ, // Not equal
CC_CS, // Carry Set
CC_CC, // Carry Clear
CC_MI, // Minus (Negative)
CC_PL, // Plus
CC_VS, // Overflow
CC_VC, // No Overflow
CC_HI, // Unsigned higher
CC_LS, // Unsigned lower or same
CC_GE, // Signed greater than or equal
CC_LT, // Signed less than
CC_GT, // Signed greater than
CC_LE, // Signed less than or equal
CC_AL, // Always (unconditional) 14
CC_HS = CC_CS, // Alias of CC_CS Unsigned higher or same
CC_LO = CC_CC, // Alias of CC_CC Unsigned lower
};
const u32 NO_COND = 0xE0000000;

23
Source/Core/Common/ArmEmitter.h
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@ -8,6 +8,7 @@
#include <vector>
#include "Common/ArmCommon.h"
#include "Common/CodeBlock.h"
#include "Common/Common.h"
@ -61,28 +62,6 @@ enum ARMReg
INVALID_REG = 0xFFFFFFFF
};
enum CCFlags
{
CC_EQ = 0, // Equal
CC_NEQ, // Not equal
CC_CS, // Carry Set
CC_CC, // Carry Clear
CC_MI, // Minus (Negative)
CC_PL, // Plus
CC_VS, // Overflow
CC_VC, // No Overflow
CC_HI, // Unsigned higher
CC_LS, // Unsigned lower or same
CC_GE, // Signed greater than or equal
CC_LT, // Signed less than
CC_GT, // Signed greater than
CC_LE, // Signed less than or equal
CC_AL, // Always (unconditional) 14
CC_HS = CC_CS, // Alias of CC_CS Unsigned higher or same
CC_LO = CC_CC, // Alias of CC_CC Unsigned lower
};
const u32 NO_COND = 0xE0000000;
enum ShiftType
{
ST_LSL = 0,