Add JIT infrastructure from Dolphin

This commit is contained in:
Darius Goad 2015-01-18 15:58:03 -06:00
parent 1cb31f4f06
commit 6b6229d4df
7 changed files with 3528 additions and 0 deletions

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@ -23,12 +23,16 @@ set(SRCS
thread.cpp
timer.cpp
utf8.cpp
x64_abi.cpp
x64_emitter.cpp
)
set(HEADERS
bit_set.h
bit_field.h
break_points.h
chunk_file.h
code_block.h
common.h
common_funcs.h
common_paths.h
@ -65,6 +69,8 @@ set(HEADERS
thunk.h
timer.h
utf8.h
x64_abi.h
x64_emitter.h
)
create_directory_groups(${SRCS} ${HEADERS})

167
src/common/bit_set.h Normal file
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// This file is under the public domain.
#pragma once
#include <cstddef>
#include <initializer_list>
#include <type_traits>
#include "common_types.h"
// Helper functions:
#ifdef _WIN32
template <typename T>
static inline int CountSetBits(T v)
{
// from https://graphics.stanford.edu/~seander/bithacks.html
// GCC has this built in, but MSVC's intrinsic will only emit the actual
// POPCNT instruction, which we're not depending on
v = v - ((v >> 1) & (T)~(T)0/3);
v = (v & (T)~(T)0/15*3) + ((v >> 2) & (T)~(T)0/15*3);
v = (v + (v >> 4)) & (T)~(T)0/255*15;
return (T)(v * ((T)~(T)0/255)) >> (sizeof(T) - 1) * 8;
}
static inline int LeastSignificantSetBit(u32 val)
{
unsigned long index;
_BitScanForward(&index, val);
return (int)index;
}
static inline int LeastSignificantSetBit(u64 val)
{
unsigned long index;
_BitScanForward64(&index, val);
return (int)index;
}
#else
static inline int CountSetBits(u32 val) { return __builtin_popcount(val); }
static inline int CountSetBits(u64 val) { return __builtin_popcountll(val); }
static inline int LeastSignificantSetBit(u32 val) { return __builtin_ctz(val); }
static inline int LeastSignificantSetBit(u64 val) { return __builtin_ctzll(val); }
#endif
// namespace avoids conflict with OS X Carbon; don't use BitSet<T> directly
namespace BS
{
// Similar to std::bitset, this is a class which encapsulates a bitset, i.e.
// using the set bits of an integer to represent a set of integers. Like that
// class, it acts like an array of bools:
// BitSet32 bs;
// bs[1] = true;
// but also like the underlying integer ([0] = least significant bit):
// BitSet32 bs2 = ...;
// bs = (bs ^ bs2) & BitSet32(0xffff);
// The following additional functionality is provided:
// - Construction using an initializer list.
// BitSet bs { 1, 2, 4, 8 };
// - Efficiently iterating through the set bits:
// for (int i : bs)
// [i is the *index* of a set bit]
// (This uses the appropriate CPU instruction to find the next set bit in one
// operation.)
// - Counting set bits using .Count() - see comment on that method.
// TODO: use constexpr when MSVC gets out of the Dark Ages
template <typename IntTy>
class BitSet
{
static_assert(!std::is_signed<IntTy>::value, "BitSet should not be used with signed types");
public:
// A reference to a particular bit, returned from operator[].
class Ref
{
public:
Ref(Ref&& other) : m_bs(other.m_bs), m_mask(other.m_mask) {}
Ref(BitSet* bs, IntTy mask) : m_bs(bs), m_mask(mask) {}
operator bool() const { return (m_bs->m_val & m_mask) != 0; }
bool operator=(bool set)
{
m_bs->m_val = (m_bs->m_val & ~m_mask) | (set ? m_mask : 0);
return set;
}
private:
BitSet* m_bs;
IntTy m_mask;
};
// A STL-like iterator is required to be able to use range-based for loops.
class Iterator
{
public:
Iterator(const Iterator& other) : m_val(other.m_val), m_bit(other.m_bit) {}
Iterator(IntTy val, int bit) : m_val(val), m_bit(bit) {}
Iterator& operator=(Iterator other) { new (this) Iterator(other); return *this; }
int operator*() { return m_bit; }
Iterator& operator++()
{
if (m_val == 0)
{
m_bit = -1;
}
else
{
int bit = LeastSignificantSetBit(m_val);
m_val &= ~(1 << bit);
m_bit = bit;
}
return *this;
}
Iterator operator++(int _)
{
Iterator other(*this);
++*this;
return other;
}
bool operator==(Iterator other) const { return m_bit == other.m_bit; }
bool operator!=(Iterator other) const { return m_bit != other.m_bit; }
private:
IntTy m_val;
int m_bit;
};
BitSet() : m_val(0) {}
explicit BitSet(IntTy val) : m_val(val) {}
BitSet(std::initializer_list<int> init)
{
m_val = 0;
for (int bit : init)
m_val |= (IntTy)1 << bit;
}
static BitSet AllTrue(size_t count)
{
return BitSet(count == sizeof(IntTy)*8 ? ~(IntTy)0 : (((IntTy)1 << count) - 1));
}
Ref operator[](size_t bit) { return Ref(this, (IntTy)1 << bit); }
const Ref operator[](size_t bit) const { return (*const_cast<BitSet*>(this))[bit]; }
bool operator==(BitSet other) const { return m_val == other.m_val; }
bool operator!=(BitSet other) const { return m_val != other.m_val; }
BitSet operator|(BitSet other) const { return BitSet(m_val | other.m_val); }
BitSet operator&(BitSet other) const { return BitSet(m_val & other.m_val); }
BitSet operator^(BitSet other) const { return BitSet(m_val ^ other.m_val); }
BitSet operator~() const { return BitSet(~m_val); }
BitSet& operator|=(BitSet other) { return *this = *this | other; }
BitSet& operator&=(BitSet other) { return *this = *this & other; }
BitSet& operator^=(BitSet other) { return *this = *this ^ other; }
operator u32() = delete;
operator bool() { return m_val != 0; }
// Warning: Even though on modern CPUs this is a single fast instruction,
// Dolphin's official builds do not currently assume POPCNT support on x86,
// so slower explicit bit twiddling is generated. Still should generally
// be faster than a loop.
unsigned int Count() const { return CountSetBits(m_val); }
Iterator begin() const { Iterator it(m_val, 0); return ++it; }
Iterator end() const { return Iterator(m_val, -1); }
IntTy m_val;
};
}
typedef BS::BitSet<u32> BitSet32;
typedef BS::BitSet<u64> BitSet64;

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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include "common/common.h"
#include "common/memory_util.h"
// Everything that needs to generate code should inherit from this.
// You get memory management for free, plus, you can use all emitter functions without
// having to prefix them with gen-> or something similar.
// Example implementation:
// class JIT : public CodeBlock<ARMXEmitter> {}
template<class T> class CodeBlock : public T, NonCopyable
{
private:
// A privately used function to set the executable RAM space to something invalid.
// For debugging usefulness it should be used to set the RAM to a host specific breakpoint instruction
virtual void PoisonMemory() = 0;
protected:
u8 *region;
size_t region_size;
public:
CodeBlock() : region(nullptr), region_size(0) {}
virtual ~CodeBlock() { if (region) FreeCodeSpace(); }
// Call this before you generate any code.
void AllocCodeSpace(int size)
{
region_size = size;
region = (u8*)AllocateExecutableMemory(region_size);
T::SetCodePtr(region);
}
// Always clear code space with breakpoints, so that if someone accidentally executes
// uninitialized, it just breaks into the debugger.
void ClearCodeSpace()
{
PoisonMemory();
ResetCodePtr();
}
// Call this when shutting down. Don't rely on the destructor, even though it'll do the job.
void FreeCodeSpace()
{
FreeMemoryPages(region, region_size);
region = nullptr;
region_size = 0;
}
bool IsInSpace(u8 *ptr)
{
return (ptr >= region) && (ptr < (region + region_size));
}
// Cannot currently be undone. Will write protect the entire code region.
// Start over if you need to change the code (call FreeCodeSpace(), AllocCodeSpace()).
void WriteProtect()
{
WriteProtectMemory(region, region_size, true);
}
void ResetCodePtr()
{
T::SetCodePtr(region);
}
size_t GetSpaceLeft() const
{
return region_size - (T::GetCodePtr() - region);
}
};

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src/common/x64_abi.cpp Normal file
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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#include "common/common_types.h"
#include "common/x64_abi.h"
#include "common/x64_emitter.h"
using namespace Gen;
// Shared code between Win64 and Unix64
void XEmitter::ABI_CalculateFrameSize(BitSet32 mask, size_t rsp_alignment, size_t needed_frame_size, size_t* shadowp, size_t* subtractionp, size_t* xmm_offsetp)
{
size_t shadow = 0;
#if defined(_WIN32)
shadow = 0x20;
#endif
int count = (mask & ABI_ALL_GPRS).Count();
rsp_alignment -= count * 8;
size_t subtraction = 0;
int fpr_count = (mask & ABI_ALL_FPRS).Count();
if (fpr_count)
{
// If we have any XMMs to save, we must align the stack here.
subtraction = rsp_alignment & 0xf;
}
subtraction += 16 * fpr_count;
size_t xmm_base_subtraction = subtraction;
subtraction += needed_frame_size;
subtraction += shadow;
// Final alignment.
rsp_alignment -= subtraction;
subtraction += rsp_alignment & 0xf;
*shadowp = shadow;
*subtractionp = subtraction;
*xmm_offsetp = subtraction - xmm_base_subtraction;
}
size_t XEmitter::ABI_PushRegistersAndAdjustStack(BitSet32 mask, size_t rsp_alignment, size_t needed_frame_size)
{
size_t shadow, subtraction, xmm_offset;
ABI_CalculateFrameSize(mask, rsp_alignment, needed_frame_size, &shadow, &subtraction, &xmm_offset);
for (int r : mask & ABI_ALL_GPRS)
PUSH((X64Reg) r);
if (subtraction)
SUB(64, R(RSP), subtraction >= 0x80 ? Imm32((u32)subtraction) : Imm8((u8)subtraction));
for (int x : mask & ABI_ALL_FPRS)
{
MOVAPD(MDisp(RSP, (int)xmm_offset), (X64Reg) (x - 16));
xmm_offset += 16;
}
return shadow;
}
void XEmitter::ABI_PopRegistersAndAdjustStack(BitSet32 mask, size_t rsp_alignment, size_t needed_frame_size)
{
size_t shadow, subtraction, xmm_offset;
ABI_CalculateFrameSize(mask, rsp_alignment, needed_frame_size, &shadow, &subtraction, &xmm_offset);
for (int x : mask & ABI_ALL_FPRS)
{
MOVAPD((X64Reg) (x - 16), MDisp(RSP, (int)xmm_offset));
xmm_offset += 16;
}
if (subtraction)
ADD(64, R(RSP), subtraction >= 0x80 ? Imm32((u32)subtraction) : Imm8((u8)subtraction));
for (int r = 15; r >= 0; r--)
{
if (mask[r])
POP((X64Reg) r);
}
}
// Common functions
void XEmitter::ABI_CallFunction(const void *func)
{
u64 distance = u64(func) - (u64(code) + 5);
if (distance >= 0x0000000080000000ULL &&
distance < 0xFFFFFFFF80000000ULL)
{
// Far call
MOV(64, R(RAX), Imm64((u64)func));
CALLptr(R(RAX));
}
else
{
CALL(func);
}
}
void XEmitter::ABI_CallFunctionC16(const void *func, u16 param1)
{
MOV(32, R(ABI_PARAM1), Imm32((u32)param1));
ABI_CallFunction(func);
}
void XEmitter::ABI_CallFunctionCC16(const void *func, u32 param1, u16 param2)
{
MOV(32, R(ABI_PARAM1), Imm32(param1));
MOV(32, R(ABI_PARAM2), Imm32((u32)param2));
ABI_CallFunction(func);
}
void XEmitter::ABI_CallFunctionC(const void *func, u32 param1)
{
MOV(32, R(ABI_PARAM1), Imm32(param1));
ABI_CallFunction(func);
}
void XEmitter::ABI_CallFunctionCC(const void *func, u32 param1, u32 param2)
{
MOV(32, R(ABI_PARAM1), Imm32(param1));
MOV(32, R(ABI_PARAM2), Imm32(param2));
ABI_CallFunction(func);
}
void XEmitter::ABI_CallFunctionCP(const void *func, u32 param1, void *param2)
{
MOV(32, R(ABI_PARAM1), Imm32(param1));
MOV(64, R(ABI_PARAM2), Imm64((u64)param2));
ABI_CallFunction(func);
}
void XEmitter::ABI_CallFunctionCCC(const void *func, u32 param1, u32 param2, u32 param3)
{
MOV(32, R(ABI_PARAM1), Imm32(param1));
MOV(32, R(ABI_PARAM2), Imm32(param2));
MOV(32, R(ABI_PARAM3), Imm32(param3));
ABI_CallFunction(func);
}
void XEmitter::ABI_CallFunctionCCP(const void *func, u32 param1, u32 param2, void *param3)
{
MOV(32, R(ABI_PARAM1), Imm32(param1));
MOV(32, R(ABI_PARAM2), Imm32(param2));
MOV(64, R(ABI_PARAM3), Imm64((u64)param3));
ABI_CallFunction(func);
}
void XEmitter::ABI_CallFunctionCCCP(const void *func, u32 param1, u32 param2, u32 param3, void *param4)
{
MOV(32, R(ABI_PARAM1), Imm32(param1));
MOV(32, R(ABI_PARAM2), Imm32(param2));
MOV(32, R(ABI_PARAM3), Imm32(param3));
MOV(64, R(ABI_PARAM4), Imm64((u64)param4));
ABI_CallFunction(func);
}
void XEmitter::ABI_CallFunctionPC(const void *func, void *param1, u32 param2)
{
MOV(64, R(ABI_PARAM1), Imm64((u64)param1));
MOV(32, R(ABI_PARAM2), Imm32(param2));
ABI_CallFunction(func);
}
void XEmitter::ABI_CallFunctionPPC(const void *func, void *param1, void *param2, u32 param3)
{
MOV(64, R(ABI_PARAM1), Imm64((u64)param1));
MOV(64, R(ABI_PARAM2), Imm64((u64)param2));
MOV(32, R(ABI_PARAM3), Imm32(param3));
ABI_CallFunction(func);
}
// Pass a register as a parameter.
void XEmitter::ABI_CallFunctionR(const void *func, X64Reg reg1)
{
if (reg1 != ABI_PARAM1)
MOV(32, R(ABI_PARAM1), R(reg1));
ABI_CallFunction(func);
}
// Pass two registers as parameters.
void XEmitter::ABI_CallFunctionRR(const void *func, X64Reg reg1, X64Reg reg2)
{
MOVTwo(64, ABI_PARAM1, reg1, ABI_PARAM2, reg2);
ABI_CallFunction(func);
}
void XEmitter::MOVTwo(int bits, Gen::X64Reg dst1, Gen::X64Reg src1, Gen::X64Reg dst2, Gen::X64Reg src2)
{
if (dst1 == src2 && dst2 == src1)
{
XCHG(bits, R(src1), R(src2));
}
else if (src2 != dst1)
{
if (dst1 != src1)
MOV(bits, R(dst1), R(src1));
if (dst2 != src2)
MOV(bits, R(dst2), R(src2));
}
else
{
if (dst2 != src2)
MOV(bits, R(dst2), R(src2));
if (dst1 != src1)
MOV(bits, R(dst1), R(src1));
}
}
void XEmitter::ABI_CallFunctionAC(int bits, const void *func, const Gen::OpArg &arg1, u32 param2)
{
if (!arg1.IsSimpleReg(ABI_PARAM1))
MOV(bits, R(ABI_PARAM1), arg1);
MOV(32, R(ABI_PARAM2), Imm32(param2));
ABI_CallFunction(func);
}
void XEmitter::ABI_CallFunctionA(int bits, const void *func, const Gen::OpArg &arg1)
{
if (!arg1.IsSimpleReg(ABI_PARAM1))
MOV(bits, R(ABI_PARAM1), arg1);
ABI_CallFunction(func);
}

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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#pragma once
#include "common/bit_set.h"
#include "common/x64_emitter.h"
// x64 ABI:s, and helpers to help follow them when JIT-ing code.
// All convensions return values in EAX (+ possibly EDX).
// Windows 64-bit
// * 4-reg "fastcall" variant, very new-skool stack handling
// * Callee moves stack pointer, to make room for shadow regs for the biggest function _it itself calls_
// * Parameters passed in RCX, RDX, ... further parameters are MOVed into the allocated stack space.
// Scratch: RAX RCX RDX R8 R9 R10 R11
// Callee-save: RBX RSI RDI RBP R12 R13 R14 R15
// Parameters: RCX RDX R8 R9, further MOV-ed
// Linux 64-bit
// * 6-reg "fastcall" variant, old skool stack handling (parameters are pushed)
// Scratch: RAX RCX RDX RSI RDI R8 R9 R10 R11
// Callee-save: RBX RBP R12 R13 R14 R15
// Parameters: RDI RSI RDX RCX R8 R9
#define ABI_ALL_FPRS BitSet32(0xffff0000)
#define ABI_ALL_GPRS BitSet32(0x0000ffff)
#ifdef _WIN32 // 64-bit Windows - the really exotic calling convention
#define ABI_PARAM1 RCX
#define ABI_PARAM2 RDX
#define ABI_PARAM3 R8
#define ABI_PARAM4 R9
// xmm0-xmm15 use the upper 16 bits in the functions that push/pop registers.
#define ABI_ALL_CALLER_SAVED \
(BitSet32 { RAX, RCX, RDX, R8, R9, R10, R11, \
XMM0+16, XMM1+16, XMM2+16, XMM3+16, XMM4+16, XMM5+16 })
#else //64-bit Unix / OS X
#define ABI_PARAM1 RDI
#define ABI_PARAM2 RSI
#define ABI_PARAM3 RDX
#define ABI_PARAM4 RCX
#define ABI_PARAM5 R8
#define ABI_PARAM6 R9
// FIXME: avoid pushing all 16 XMM registers when possible? most functions we call probably
// don't actually clobber them.
#define ABI_ALL_CALLER_SAVED \
(BitSet32 { RAX, RCX, RDX, RDI, RSI, R8, R9, R10, R11 } | \
ABI_ALL_FPRS)
#endif // WIN32
#define ABI_ALL_CALLEE_SAVED (~ABI_ALL_CALLER_SAVED)
#define ABI_RETURN RAX

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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
// WARNING - THIS LIBRARY IS NOT THREAD SAFE!!!
#pragma once
#include <cstddef>
#include <cstring>
#include <functional>
#include "Common/bit_set.h"
#include "Common/code_block.h"
#include "Common/common_types.h"
namespace Gen
{
enum X64Reg
{
EAX = 0, EBX = 3, ECX = 1, EDX = 2,
ESI = 6, EDI = 7, EBP = 5, ESP = 4,
RAX = 0, RBX = 3, RCX = 1, RDX = 2,
RSI = 6, RDI = 7, RBP = 5, RSP = 4,
R8 = 8, R9 = 9, R10 = 10,R11 = 11,
R12 = 12,R13 = 13,R14 = 14,R15 = 15,
AL = 0, BL = 3, CL = 1, DL = 2,
SIL = 6, DIL = 7, BPL = 5, SPL = 4,
AH = 0x104, BH = 0x107, CH = 0x105, DH = 0x106,
AX = 0, BX = 3, CX = 1, DX = 2,
SI = 6, DI = 7, BP = 5, SP = 4,
XMM0=0, XMM1, XMM2, XMM3, XMM4, XMM5, XMM6, XMM7,
XMM8, XMM9, XMM10, XMM11, XMM12, XMM13, XMM14, XMM15,
YMM0=0, YMM1, YMM2, YMM3, YMM4, YMM5, YMM6, YMM7,
YMM8, YMM9, YMM10, YMM11, YMM12, YMM13, YMM14, YMM15,
INVALID_REG = 0xFFFFFFFF
};
enum CCFlags
{
CC_O = 0,
CC_NO = 1,
CC_B = 2, CC_C = 2, CC_NAE = 2,
CC_NB = 3, CC_NC = 3, CC_AE = 3,
CC_Z = 4, CC_E = 4,
CC_NZ = 5, CC_NE = 5,
CC_BE = 6, CC_NA = 6,
CC_NBE = 7, CC_A = 7,
CC_S = 8,
CC_NS = 9,
CC_P = 0xA, CC_PE = 0xA,
CC_NP = 0xB, CC_PO = 0xB,
CC_L = 0xC, CC_NGE = 0xC,
CC_NL = 0xD, CC_GE = 0xD,
CC_LE = 0xE, CC_NG = 0xE,
CC_NLE = 0xF, CC_G = 0xF
};
enum
{
NUMGPRs = 16,
NUMXMMs = 16,
};
enum
{
SCALE_NONE = 0,
SCALE_1 = 1,
SCALE_2 = 2,
SCALE_4 = 4,
SCALE_8 = 8,
SCALE_ATREG = 16,
//SCALE_NOBASE_1 is not supported and can be replaced with SCALE_ATREG
SCALE_NOBASE_2 = 34,
SCALE_NOBASE_4 = 36,
SCALE_NOBASE_8 = 40,
SCALE_RIP = 0xFF,
SCALE_IMM8 = 0xF0,
SCALE_IMM16 = 0xF1,
SCALE_IMM32 = 0xF2,
SCALE_IMM64 = 0xF3,
};
enum NormalOp {
nrmADD,
nrmADC,
nrmSUB,
nrmSBB,
nrmAND,
nrmOR ,
nrmXOR,
nrmMOV,
nrmTEST,
nrmCMP,
nrmXCHG,
};
enum {
CMP_EQ = 0,
CMP_LT = 1,
CMP_LE = 2,
CMP_UNORD = 3,
CMP_NEQ = 4,
CMP_NLT = 5,
CMP_NLE = 6,
CMP_ORD = 7,
};
enum FloatOp {
floatLD = 0,
floatST = 2,
floatSTP = 3,
floatLD80 = 5,
floatSTP80 = 7,
floatINVALID = -1,
};
class XEmitter;
// RIP addressing does not benefit from micro op fusion on Core arch
struct OpArg
{
OpArg() {} // dummy op arg, used for storage
OpArg(u64 _offset, int _scale, X64Reg rmReg = RAX, X64Reg scaledReg = RAX)
{
operandReg = 0;
scale = (u8)_scale;
offsetOrBaseReg = (u16)rmReg;
indexReg = (u16)scaledReg;
//if scale == 0 never mind offsetting
offset = _offset;
}
bool operator==(OpArg b)
{
return operandReg == b.operandReg && scale == b.scale && offsetOrBaseReg == b.offsetOrBaseReg &&
indexReg == b.indexReg && offset == b.offset;
}
void WriteRex(XEmitter *emit, int opBits, int bits, int customOp = -1) const;
void WriteVex(XEmitter* emit, X64Reg regOp1, X64Reg regOp2, int L, int pp, int mmmmm, int W = 0) const;
void WriteRest(XEmitter *emit, int extraBytes=0, X64Reg operandReg=INVALID_REG, bool warn_64bit_offset = true) const;
void WriteFloatModRM(XEmitter *emit, FloatOp op);
void WriteSingleByteOp(XEmitter *emit, u8 op, X64Reg operandReg, int bits);
// This one is public - must be written to
u64 offset; // use RIP-relative as much as possible - 64-bit immediates are not available.
u16 operandReg;
void WriteNormalOp(XEmitter *emit, bool toRM, NormalOp op, const OpArg &operand, int bits) const;
bool IsImm() const {return scale == SCALE_IMM8 || scale == SCALE_IMM16 || scale == SCALE_IMM32 || scale == SCALE_IMM64;}
bool IsSimpleReg() const {return scale == SCALE_NONE;}
bool IsSimpleReg(X64Reg reg) const
{
if (!IsSimpleReg())
return false;
return GetSimpleReg() == reg;
}
bool CanDoOpWith(const OpArg &other) const
{
if (IsSimpleReg()) return true;
if (!IsSimpleReg() && !other.IsSimpleReg() && !other.IsImm()) return false;
return true;
}
int GetImmBits() const
{
switch (scale)
{
case SCALE_IMM8: return 8;
case SCALE_IMM16: return 16;
case SCALE_IMM32: return 32;
case SCALE_IMM64: return 64;
default: return -1;
}
}
X64Reg GetSimpleReg() const
{
if (scale == SCALE_NONE)
return (X64Reg)offsetOrBaseReg;
else
return INVALID_REG;
}
private:
u8 scale;
u16 offsetOrBaseReg;
u16 indexReg;
};
template <typename T>
inline OpArg M(const T *ptr) {return OpArg((u64)(const void *)ptr, (int)SCALE_RIP);}
inline OpArg R(X64Reg value) {return OpArg(0, SCALE_NONE, value);}
inline OpArg MatR(X64Reg value) {return OpArg(0, SCALE_ATREG, value);}
inline OpArg MDisp(X64Reg value, int offset)
{
return OpArg((u32)offset, SCALE_ATREG, value);
}
inline OpArg MComplex(X64Reg base, X64Reg scaled, int scale, int offset)
{
return OpArg(offset, scale, base, scaled);
}
inline OpArg MScaled(X64Reg scaled, int scale, int offset)
{
if (scale == SCALE_1)
return OpArg(offset, SCALE_ATREG, scaled);
else
return OpArg(offset, scale | 0x20, RAX, scaled);
}
inline OpArg MRegSum(X64Reg base, X64Reg offset)
{
return MComplex(base, offset, 1, 0);
}
inline OpArg Imm8 (u8 imm) {return OpArg(imm, SCALE_IMM8);}
inline OpArg Imm16(u16 imm) {return OpArg(imm, SCALE_IMM16);} //rarely used
inline OpArg Imm32(u32 imm) {return OpArg(imm, SCALE_IMM32);}
inline OpArg Imm64(u64 imm) {return OpArg(imm, SCALE_IMM64);}
#ifdef _ARCH_64
inline OpArg ImmPtr(const void* imm) {return Imm64((u64)imm);}
#else
inline OpArg ImmPtr(const void* imm) {return Imm32((u32)imm);}
#endif
inline u32 PtrOffset(const void* ptr, const void* base)
{
#ifdef _ARCH_64
s64 distance = (s64)ptr-(s64)base;
if (distance >= 0x80000000LL ||
distance < -0x80000000LL)
{
_assert_msg_(DYNA_REC, 0, "pointer offset out of range");
return 0;
}
return (u32)distance;
#else
return (u32)ptr-(u32)base;
#endif
}
//usage: int a[]; ARRAY_OFFSET(a,10)
#define ARRAY_OFFSET(array,index) ((u32)((u64)&(array)[index]-(u64)&(array)[0]))
//usage: struct {int e;} s; STRUCT_OFFSET(s,e)
#define STRUCT_OFFSET(str,elem) ((u32)((u64)&(str).elem-(u64)&(str)))
struct FixupBranch
{
u8 *ptr;
int type; //0 = 8bit 1 = 32bit
};
enum SSECompare
{
EQ = 0,
LT,
LE,
UNORD,
NEQ,
NLT,
NLE,
ORD,
};
typedef const u8* JumpTarget;
class XEmitter
{
friend struct OpArg; // for Write8 etc
private:
u8 *code;
bool flags_locked;
void CheckFlags();
void Rex(int w, int r, int x, int b);
void WriteSimple1Byte(int bits, u8 byte, X64Reg reg);
void WriteSimple2Byte(int bits, u8 byte1, u8 byte2, X64Reg reg);
void WriteMulDivType(int bits, OpArg src, int ext);
void WriteBitSearchType(int bits, X64Reg dest, OpArg src, u8 byte2, bool rep = false);
void WriteShift(int bits, OpArg dest, OpArg &shift, int ext);
void WriteBitTest(int bits, OpArg &dest, OpArg &index, int ext);
void WriteMXCSR(OpArg arg, int ext);
void WriteSSEOp(u8 opPrefix, u16 op, X64Reg regOp, OpArg arg, int extrabytes = 0);
void WriteSSSE3Op(u8 opPrefix, u16 op, X64Reg regOp, OpArg arg, int extrabytes = 0);
void WriteSSE41Op(u8 opPrefix, u16 op, X64Reg regOp, OpArg arg, int extrabytes = 0);
void WriteAVXOp(u8 opPrefix, u16 op, X64Reg regOp, OpArg arg, int W = 0, int extrabytes = 0);
void WriteAVXOp(u8 opPrefix, u16 op, X64Reg regOp1, X64Reg regOp2, OpArg arg, int W = 0, int extrabytes = 0);
void WriteVEXOp(int size, u8 opPrefix, u16 op, X64Reg regOp1, X64Reg regOp2, OpArg arg, int extrabytes = 0);
void WriteBMI1Op(int size, u8 opPrefix, u16 op, X64Reg regOp1, X64Reg regOp2, OpArg arg, int extrabytes = 0);
void WriteBMI2Op(int size, u8 opPrefix, u16 op, X64Reg regOp1, X64Reg regOp2, OpArg arg, int extrabytes = 0);
void WriteFloatLoadStore(int bits, FloatOp op, FloatOp op_80b, OpArg arg);
void WriteNormalOp(XEmitter *emit, int bits, NormalOp op, const OpArg &a1, const OpArg &a2);
void ABI_CalculateFrameSize(BitSet32 mask, size_t rsp_alignment, size_t needed_frame_size, size_t* shadowp, size_t* subtractionp, size_t* xmm_offsetp);
protected:
inline void Write8(u8 value) {*code++ = value;}
inline void Write16(u16 value) {*(u16*)code = (value); code += 2;}
inline void Write32(u32 value) {*(u32*)code = (value); code += 4;}
inline void Write64(u64 value) {*(u64*)code = (value); code += 8;}
public:
XEmitter() { code = nullptr; flags_locked = false; }
XEmitter(u8 *code_ptr) { code = code_ptr; flags_locked = false; }
virtual ~XEmitter() {}
void WriteModRM(int mod, int rm, int reg);
void WriteSIB(int scale, int index, int base);
void SetCodePtr(u8 *ptr);
void ReserveCodeSpace(int bytes);
const u8 *AlignCode4();
const u8 *AlignCode16();
const u8 *AlignCodePage();
const u8 *GetCodePtr() const;
u8 *GetWritableCodePtr();
void LockFlags() { flags_locked = true; }
void UnlockFlags() { flags_locked = false; }
// Looking for one of these? It's BANNED!! Some instructions are slow on modern CPU
// INC, DEC, LOOP, LOOPNE, LOOPE, ENTER, LEAVE, XCHG, XLAT, REP MOVSB/MOVSD, REP SCASD + other string instr.,
// INC and DEC are slow on Intel Core, but not on AMD. They create a
// false flag dependency because they only update a subset of the flags.
// XCHG is SLOW and should be avoided.
// Debug breakpoint
void INT3();
// Do nothing
void NOP(size_t count = 1);
// Save energy in wait-loops on P4 only. Probably not too useful.
void PAUSE();
// Flag control
void STC();
void CLC();
void CMC();
// These two can not be executed in 64-bit mode on early Intel 64-bit CPU:s, only on Core2 and AMD!
void LAHF(); // 3 cycle vector path
void SAHF(); // direct path fast
// Stack control
void PUSH(X64Reg reg);
void POP(X64Reg reg);
void PUSH(int bits, const OpArg &reg);
void POP(int bits, const OpArg &reg);
void PUSHF();
void POPF();
// Flow control
void RET();
void RET_FAST();
void UD2();
FixupBranch J(bool force5bytes = false);
void JMP(const u8 * addr, bool force5Bytes = false);
void JMPptr(const OpArg &arg);
void JMPself(); //infinite loop!
#ifdef CALL
#undef CALL
#endif
void CALL(const void *fnptr);
void CALLptr(OpArg arg);
FixupBranch J_CC(CCFlags conditionCode, bool force5bytes = false);
//void J_CC(CCFlags conditionCode, JumpTarget target);
void J_CC(CCFlags conditionCode, const u8* addr);
void SetJumpTarget(const FixupBranch &branch);
void SETcc(CCFlags flag, OpArg dest);
// Note: CMOV brings small if any benefit on current CPUs.
void CMOVcc(int bits, X64Reg dest, OpArg src, CCFlags flag);
// Fences
void LFENCE();
void MFENCE();
void SFENCE();
// Bit scan
void BSF(int bits, X64Reg dest, OpArg src); //bottom bit to top bit
void BSR(int bits, X64Reg dest, OpArg src); //top bit to bottom bit
// Cache control
enum PrefetchLevel
{
PF_NTA, //Non-temporal (data used once and only once)
PF_T0, //All cache levels
PF_T1, //Levels 2+ (aliased to T0 on AMD)
PF_T2, //Levels 3+ (aliased to T0 on AMD)
};
void PREFETCH(PrefetchLevel level, OpArg arg);
void MOVNTI(int bits, OpArg dest, X64Reg src);
void MOVNTDQ(OpArg arg, X64Reg regOp);
void MOVNTPS(OpArg arg, X64Reg regOp);
void MOVNTPD(OpArg arg, X64Reg regOp);
// Multiplication / division
void MUL(int bits, OpArg src); //UNSIGNED
void IMUL(int bits, OpArg src); //SIGNED
void IMUL(int bits, X64Reg regOp, OpArg src);
void IMUL(int bits, X64Reg regOp, OpArg src, OpArg imm);
void DIV(int bits, OpArg src);
void IDIV(int bits, OpArg src);
// Shift
void ROL(int bits, OpArg dest, OpArg shift);
void ROR(int bits, OpArg dest, OpArg shift);
void RCL(int bits, OpArg dest, OpArg shift);
void RCR(int bits, OpArg dest, OpArg shift);
void SHL(int bits, OpArg dest, OpArg shift);
void SHR(int bits, OpArg dest, OpArg shift);
void SAR(int bits, OpArg dest, OpArg shift);
// Bit Test
void BT(int bits, OpArg dest, OpArg index);
void BTS(int bits, OpArg dest, OpArg index);
void BTR(int bits, OpArg dest, OpArg index);
void BTC(int bits, OpArg dest, OpArg index);
// Double-Precision Shift
void SHRD(int bits, OpArg dest, OpArg src, OpArg shift);
void SHLD(int bits, OpArg dest, OpArg src, OpArg shift);
// Extend EAX into EDX in various ways
void CWD(int bits = 16);
inline void CDQ() {CWD(32);}
inline void CQO() {CWD(64);}
void CBW(int bits = 8);
inline void CWDE() {CBW(16);}
inline void CDQE() {CBW(32);}
// Load effective address
void LEA(int bits, X64Reg dest, OpArg src);
// Integer arithmetic
void NEG (int bits, OpArg src);
void ADD (int bits, const OpArg &a1, const OpArg &a2);
void ADC (int bits, const OpArg &a1, const OpArg &a2);
void SUB (int bits, const OpArg &a1, const OpArg &a2);
void SBB (int bits, const OpArg &a1, const OpArg &a2);
void AND (int bits, const OpArg &a1, const OpArg &a2);
void CMP (int bits, const OpArg &a1, const OpArg &a2);
// Bit operations
void NOT (int bits, OpArg src);
void OR (int bits, const OpArg &a1, const OpArg &a2);
void XOR (int bits, const OpArg &a1, const OpArg &a2);
void MOV (int bits, const OpArg &a1, const OpArg &a2);
void TEST(int bits, const OpArg &a1, const OpArg &a2);
// Are these useful at all? Consider removing.
void XCHG(int bits, const OpArg &a1, const OpArg &a2);
void XCHG_AHAL();
// Byte swapping (32 and 64-bit only).
void BSWAP(int bits, X64Reg reg);
// Sign/zero extension
void MOVSX(int dbits, int sbits, X64Reg dest, OpArg src); //automatically uses MOVSXD if necessary
void MOVZX(int dbits, int sbits, X64Reg dest, OpArg src);
// Available only on Atom or >= Haswell so far. Test with cpu_info.bMOVBE.
void MOVBE(int dbits, const OpArg& dest, const OpArg& src);
// Available only on AMD >= Phenom or Intel >= Haswell
void LZCNT(int bits, X64Reg dest, OpArg src);
// Note: this one is actually part of BMI1
void TZCNT(int bits, X64Reg dest, OpArg src);
// WARNING - These two take 11-13 cycles and are VectorPath! (AMD64)
void STMXCSR(OpArg memloc);
void LDMXCSR(OpArg memloc);
// Prefixes
void LOCK();
void REP();
void REPNE();
void FSOverride();
void GSOverride();
// x87
enum x87StatusWordBits {
x87_InvalidOperation = 0x1,
x87_DenormalizedOperand = 0x2,
x87_DivisionByZero = 0x4,
x87_Overflow = 0x8,
x87_Underflow = 0x10,
x87_Precision = 0x20,
x87_StackFault = 0x40,
x87_ErrorSummary = 0x80,
x87_C0 = 0x100,
x87_C1 = 0x200,
x87_C2 = 0x400,
x87_TopOfStack = 0x2000 | 0x1000 | 0x800,
x87_C3 = 0x4000,
x87_FPUBusy = 0x8000,
};
void FLD(int bits, OpArg src);
void FST(int bits, OpArg dest);
void FSTP(int bits, OpArg dest);
void FNSTSW_AX();
void FWAIT();
// SSE/SSE2: Floating point arithmetic
void ADDSS(X64Reg regOp, OpArg arg);
void ADDSD(X64Reg regOp, OpArg arg);
void SUBSS(X64Reg regOp, OpArg arg);
void SUBSD(X64Reg regOp, OpArg arg);
void MULSS(X64Reg regOp, OpArg arg);
void MULSD(X64Reg regOp, OpArg arg);
void DIVSS(X64Reg regOp, OpArg arg);
void DIVSD(X64Reg regOp, OpArg arg);
void MINSS(X64Reg regOp, OpArg arg);
void MINSD(X64Reg regOp, OpArg arg);
void MAXSS(X64Reg regOp, OpArg arg);
void MAXSD(X64Reg regOp, OpArg arg);
void SQRTSS(X64Reg regOp, OpArg arg);
void SQRTSD(X64Reg regOp, OpArg arg);
void RSQRTSS(X64Reg regOp, OpArg arg);
// SSE/SSE2: Floating point bitwise (yes)
void CMPSS(X64Reg regOp, OpArg arg, u8 compare);
void CMPSD(X64Reg regOp, OpArg arg, u8 compare);
inline void CMPEQSS(X64Reg regOp, OpArg arg) { CMPSS(regOp, arg, CMP_EQ); }
inline void CMPLTSS(X64Reg regOp, OpArg arg) { CMPSS(regOp, arg, CMP_LT); }
inline void CMPLESS(X64Reg regOp, OpArg arg) { CMPSS(regOp, arg, CMP_LE); }
inline void CMPUNORDSS(X64Reg regOp, OpArg arg) { CMPSS(regOp, arg, CMP_UNORD); }
inline void CMPNEQSS(X64Reg regOp, OpArg arg) { CMPSS(regOp, arg, CMP_NEQ); }
inline void CMPNLTSS(X64Reg regOp, OpArg arg) { CMPSS(regOp, arg, CMP_NLT); }
inline void CMPORDSS(X64Reg regOp, OpArg arg) { CMPSS(regOp, arg, CMP_ORD); }
// SSE/SSE2: Floating point packed arithmetic (x4 for float, x2 for double)
void ADDPS(X64Reg regOp, OpArg arg);
void ADDPD(X64Reg regOp, OpArg arg);
void SUBPS(X64Reg regOp, OpArg arg);
void SUBPD(X64Reg regOp, OpArg arg);
void CMPPS(X64Reg regOp, OpArg arg, u8 compare);
void CMPPD(X64Reg regOp, OpArg arg, u8 compare);
void MULPS(X64Reg regOp, OpArg arg);
void MULPD(X64Reg regOp, OpArg arg);
void DIVPS(X64Reg regOp, OpArg arg);
void DIVPD(X64Reg regOp, OpArg arg);
void MINPS(X64Reg regOp, OpArg arg);
void MINPD(X64Reg regOp, OpArg arg);
void MAXPS(X64Reg regOp, OpArg arg);
void MAXPD(X64Reg regOp, OpArg arg);
void SQRTPS(X64Reg regOp, OpArg arg);
void SQRTPD(X64Reg regOp, OpArg arg);
void RSQRTPS(X64Reg regOp, OpArg arg);
// SSE/SSE2: Floating point packed bitwise (x4 for float, x2 for double)
void ANDPS(X64Reg regOp, OpArg arg);
void ANDPD(X64Reg regOp, OpArg arg);
void ANDNPS(X64Reg regOp, OpArg arg);
void ANDNPD(X64Reg regOp, OpArg arg);
void ORPS(X64Reg regOp, OpArg arg);
void ORPD(X64Reg regOp, OpArg arg);
void XORPS(X64Reg regOp, OpArg arg);
void XORPD(X64Reg regOp, OpArg arg);
// SSE/SSE2: Shuffle components. These are tricky - see Intel documentation.
void SHUFPS(X64Reg regOp, OpArg arg, u8 shuffle);
void SHUFPD(X64Reg regOp, OpArg arg, u8 shuffle);
// SSE/SSE2: Useful alternative to shuffle in some cases.
void MOVDDUP(X64Reg regOp, OpArg arg);
void UNPCKLPS(X64Reg dest, OpArg src);
void UNPCKHPS(X64Reg dest, OpArg src);
void UNPCKLPD(X64Reg dest, OpArg src);
void UNPCKHPD(X64Reg dest, OpArg src);
// SSE/SSE2: Compares.
void COMISS(X64Reg regOp, OpArg arg);
void COMISD(X64Reg regOp, OpArg arg);
void UCOMISS(X64Reg regOp, OpArg arg);
void UCOMISD(X64Reg regOp, OpArg arg);
// SSE/SSE2: Moves. Use the right data type for your data, in most cases.
void MOVAPS(X64Reg regOp, OpArg arg);
void MOVAPD(X64Reg regOp, OpArg arg);
void MOVAPS(OpArg arg, X64Reg regOp);
void MOVAPD(OpArg arg, X64Reg regOp);
void MOVUPS(X64Reg regOp, OpArg arg);
void MOVUPD(X64Reg regOp, OpArg arg);
void MOVUPS(OpArg arg, X64Reg regOp);
void MOVUPD(OpArg arg, X64Reg regOp);
void MOVDQA(X64Reg regOp, OpArg arg);
void MOVDQA(OpArg arg, X64Reg regOp);
void MOVDQU(X64Reg regOp, OpArg arg);
void MOVDQU(OpArg arg, X64Reg regOp);
void MOVSS(X64Reg regOp, OpArg arg);
void MOVSD(X64Reg regOp, OpArg arg);
void MOVSS(OpArg arg, X64Reg regOp);
void MOVSD(OpArg arg, X64Reg regOp);
void MOVLPD(X64Reg regOp, OpArg arg);
void MOVHPD(X64Reg regOp, OpArg arg);
void MOVLPD(OpArg arg, X64Reg regOp);
void MOVHPD(OpArg arg, X64Reg regOp);
void MOVHLPS(X64Reg regOp1, X64Reg regOp2);
void MOVLHPS(X64Reg regOp1, X64Reg regOp2);
void MOVD_xmm(X64Reg dest, const OpArg &arg);
void MOVQ_xmm(X64Reg dest, OpArg arg);
void MOVD_xmm(const OpArg &arg, X64Reg src);
void MOVQ_xmm(OpArg arg, X64Reg src);
// SSE/SSE2: Generates a mask from the high bits of the components of the packed register in question.
void MOVMSKPS(X64Reg dest, OpArg arg);
void MOVMSKPD(X64Reg dest, OpArg arg);
// SSE2: Selective byte store, mask in src register. EDI/RDI specifies store address. This is a weird one.
void MASKMOVDQU(X64Reg dest, X64Reg src);
void LDDQU(X64Reg dest, OpArg src);
// SSE/SSE2: Data type conversions.
void CVTPS2PD(X64Reg dest, OpArg src);
void CVTPD2PS(X64Reg dest, OpArg src);
void CVTSS2SD(X64Reg dest, OpArg src);
void CVTSI2SS(X64Reg dest, OpArg src);
void CVTSD2SS(X64Reg dest, OpArg src);
void CVTSI2SD(X64Reg dest, OpArg src);
void CVTDQ2PD(X64Reg regOp, OpArg arg);
void CVTPD2DQ(X64Reg regOp, OpArg arg);
void CVTDQ2PS(X64Reg regOp, OpArg arg);
void CVTPS2DQ(X64Reg regOp, OpArg arg);
void CVTTPS2DQ(X64Reg regOp, OpArg arg);
void CVTTPD2DQ(X64Reg regOp, OpArg arg);
// Destinations are X64 regs (rax, rbx, ...) for these instructions.
void CVTSS2SI(X64Reg xregdest, OpArg src);
void CVTSD2SI(X64Reg xregdest, OpArg src);
void CVTTSS2SI(X64Reg xregdest, OpArg arg);
void CVTTSD2SI(X64Reg xregdest, OpArg arg);
// SSE2: Packed integer instructions
void PACKSSDW(X64Reg dest, OpArg arg);
void PACKSSWB(X64Reg dest, OpArg arg);
void PACKUSDW(X64Reg dest, OpArg arg);
void PACKUSWB(X64Reg dest, OpArg arg);
void PUNPCKLBW(X64Reg dest, const OpArg &arg);
void PUNPCKLWD(X64Reg dest, const OpArg &arg);
void PUNPCKLDQ(X64Reg dest, const OpArg &arg);
void PTEST(X64Reg dest, OpArg arg);
void PAND(X64Reg dest, OpArg arg);
void PANDN(X64Reg dest, OpArg arg);
void PXOR(X64Reg dest, OpArg arg);
void POR(X64Reg dest, OpArg arg);
void PADDB(X64Reg dest, OpArg arg);
void PADDW(X64Reg dest, OpArg arg);
void PADDD(X64Reg dest, OpArg arg);
void PADDQ(X64Reg dest, OpArg arg);
void PADDSB(X64Reg dest, OpArg arg);
void PADDSW(X64Reg dest, OpArg arg);
void PADDUSB(X64Reg dest, OpArg arg);
void PADDUSW(X64Reg dest, OpArg arg);
void PSUBB(X64Reg dest, OpArg arg);
void PSUBW(X64Reg dest, OpArg arg);
void PSUBD(X64Reg dest, OpArg arg);
void PSUBQ(X64Reg dest, OpArg arg);
void PSUBSB(X64Reg dest, OpArg arg);
void PSUBSW(X64Reg dest, OpArg arg);
void PSUBUSB(X64Reg dest, OpArg arg);
void PSUBUSW(X64Reg dest, OpArg arg);
void PAVGB(X64Reg dest, OpArg arg);
void PAVGW(X64Reg dest, OpArg arg);
void PCMPEQB(X64Reg dest, OpArg arg);
void PCMPEQW(X64Reg dest, OpArg arg);
void PCMPEQD(X64Reg dest, OpArg arg);
void PCMPGTB(X64Reg dest, OpArg arg);
void PCMPGTW(X64Reg dest, OpArg arg);
void PCMPGTD(X64Reg dest, OpArg arg);
void PEXTRW(X64Reg dest, OpArg arg, u8 subreg);
void PINSRW(X64Reg dest, OpArg arg, u8 subreg);
void PMADDWD(X64Reg dest, OpArg arg);
void PSADBW(X64Reg dest, OpArg arg);
void PMAXSW(X64Reg dest, OpArg arg);
void PMAXUB(X64Reg dest, OpArg arg);
void PMINSW(X64Reg dest, OpArg arg);
void PMINUB(X64Reg dest, OpArg arg);
void PMOVMSKB(X64Reg dest, OpArg arg);
void PSHUFD(X64Reg dest, OpArg arg, u8 shuffle);
void PSHUFB(X64Reg dest, OpArg arg);
void PSHUFLW(X64Reg dest, OpArg arg, u8 shuffle);
void PSHUFHW(X64Reg dest, OpArg arg, u8 shuffle);
void PSRLW(X64Reg reg, int shift);
void PSRLD(X64Reg reg, int shift);
void PSRLQ(X64Reg reg, int shift);
void PSRLQ(X64Reg reg, OpArg arg);
void PSRLDQ(X64Reg reg, int shift);
void PSLLW(X64Reg reg, int shift);
void PSLLD(X64Reg reg, int shift);
void PSLLQ(X64Reg reg, int shift);
void PSLLDQ(X64Reg reg, int shift);
void PSRAW(X64Reg reg, int shift);
void PSRAD(X64Reg reg, int shift);
// SSE4: data type conversions
void PMOVSXBW(X64Reg dest, OpArg arg);
void PMOVSXBD(X64Reg dest, OpArg arg);
void PMOVSXBQ(X64Reg dest, OpArg arg);
void PMOVSXWD(X64Reg dest, OpArg arg);
void PMOVSXWQ(X64Reg dest, OpArg arg);
void PMOVSXDQ(X64Reg dest, OpArg arg);
void PMOVZXBW(X64Reg dest, OpArg arg);
void PMOVZXBD(X64Reg dest, OpArg arg);
void PMOVZXBQ(X64Reg dest, OpArg arg);
void PMOVZXWD(X64Reg dest, OpArg arg);
void PMOVZXWQ(X64Reg dest, OpArg arg);
void PMOVZXDQ(X64Reg dest, OpArg arg);
// SSE4: variable blend instructions (xmm0 implicit argument)
void PBLENDVB(X64Reg dest, OpArg arg);
void BLENDVPS(X64Reg dest, OpArg arg);
void BLENDVPD(X64Reg dest, OpArg arg);
// AVX
void VADDSD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VSUBSD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VMULSD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VDIVSD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VADDPD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VSUBPD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VMULPD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VDIVPD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VSQRTSD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VSHUFPD(X64Reg regOp1, X64Reg regOp2, OpArg arg, u8 shuffle);
void VUNPCKLPD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VUNPCKHPD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VANDPS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VANDPD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VANDNPS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VANDNPD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VORPS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VORPD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VXORPS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VXORPD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VPAND(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VPANDN(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VPOR(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VPXOR(X64Reg regOp1, X64Reg regOp2, OpArg arg);
// FMA3
void VFMADD132PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADD213PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADD231PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADD132PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADD213PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADD231PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADD132SS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADD213SS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADD231SS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADD132SD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADD213SD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADD231SD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUB132PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUB213PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUB231PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUB132PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUB213PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUB231PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUB132SS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUB213SS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUB231SS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUB132SD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUB213SD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUB231SD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMADD132PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMADD213PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMADD231PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMADD132PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMADD213PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMADD231PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMADD132SS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMADD213SS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMADD231SS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMADD132SD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMADD213SD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMADD231SD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMSUB132PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMSUB213PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMSUB231PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMSUB132PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMSUB213PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMSUB231PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMSUB132SS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMSUB213SS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMSUB231SS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMSUB132SD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMSUB213SD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFNMSUB231SD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADDSUB132PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADDSUB213PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADDSUB231PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADDSUB132PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADDSUB213PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMADDSUB231PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUBADD132PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUBADD213PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUBADD231PS(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUBADD132PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUBADD213PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
void VFMSUBADD231PD(X64Reg regOp1, X64Reg regOp2, OpArg arg);
// VEX GPR instructions
void SARX(int bits, X64Reg regOp1, OpArg arg, X64Reg regOp2);
void SHLX(int bits, X64Reg regOp1, OpArg arg, X64Reg regOp2);
void SHRX(int bits, X64Reg regOp1, OpArg arg, X64Reg regOp2);
void RORX(int bits, X64Reg regOp, OpArg arg, u8 rotate);
void PEXT(int bits, X64Reg regOp1, X64Reg regOp2, OpArg arg);
void PDEP(int bits, X64Reg regOp1, X64Reg regOp2, OpArg arg);
void MULX(int bits, X64Reg regOp1, X64Reg regOp2, OpArg arg);
void BZHI(int bits, X64Reg regOp1, OpArg arg, X64Reg regOp2);
void BLSR(int bits, X64Reg regOp, OpArg arg);
void BLSMSK(int bits, X64Reg regOp, OpArg arg);
void BLSI(int bits, X64Reg regOp, OpArg arg);
void BEXTR(int bits, X64Reg regOp1, OpArg arg, X64Reg regOp2);
void ANDN(int bits, X64Reg regOp1, X64Reg regOp2, OpArg arg);
void RDTSC();
// Utility functions
// The difference between this and CALL is that this aligns the stack
// where appropriate.
void ABI_CallFunction(const void *func);
void ABI_CallFunctionC16(const void *func, u16 param1);
void ABI_CallFunctionCC16(const void *func, u32 param1, u16 param2);
// These only support u32 parameters, but that's enough for a lot of uses.
// These will destroy the 1 or 2 first "parameter regs".
void ABI_CallFunctionC(const void *func, u32 param1);
void ABI_CallFunctionCC(const void *func, u32 param1, u32 param2);
void ABI_CallFunctionCP(const void *func, u32 param1, void *param2);
void ABI_CallFunctionCCC(const void *func, u32 param1, u32 param2, u32 param3);
void ABI_CallFunctionCCP(const void *func, u32 param1, u32 param2, void *param3);
void ABI_CallFunctionCCCP(const void *func, u32 param1, u32 param2,u32 param3, void *param4);
void ABI_CallFunctionPC(const void *func, void *param1, u32 param2);
void ABI_CallFunctionPPC(const void *func, void *param1, void *param2, u32 param3);
void ABI_CallFunctionAC(int bits, const void *func, const OpArg &arg1, u32 param2);
void ABI_CallFunctionA(int bits, const void *func, const OpArg &arg1);
// Pass a register as a parameter.
void ABI_CallFunctionR(const void *func, X64Reg reg1);
void ABI_CallFunctionRR(const void *func, X64Reg reg1, X64Reg reg2);
// Helper method for the above, or can be used separately.
void MOVTwo(int bits, Gen::X64Reg dst1, Gen::X64Reg src1, Gen::X64Reg dst2, Gen::X64Reg src2);
// Saves/restores the registers and adjusts the stack to be aligned as
// required by the ABI, where the previous alignment was as specified.
// Push returns the size of the shadow space, i.e. the offset of the frame.
size_t ABI_PushRegistersAndAdjustStack(BitSet32 mask, size_t rsp_alignment, size_t needed_frame_size = 0);
void ABI_PopRegistersAndAdjustStack(BitSet32 mask, size_t rsp_alignment, size_t needed_frame_size = 0);
inline int ABI_GetNumXMMRegs() { return 16; }
// Strange call wrappers.
void CallCdeclFunction3(void* fnptr, u32 arg0, u32 arg1, u32 arg2);
void CallCdeclFunction4(void* fnptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3);
void CallCdeclFunction5(void* fnptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4);
void CallCdeclFunction6(void* fnptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 arg5);
// Comments from VertexLoader.cpp about these horrors:
// This is a horrible hack that is necessary in 64-bit mode because Opengl32.dll is based way, way above the 32-bit
// address space that is within reach of a CALL, and just doing &fn gives us these high uncallable addresses. So we
// want to grab the function pointers from the import table instead.
void ___CallCdeclImport3(void* impptr, u32 arg0, u32 arg1, u32 arg2);
void ___CallCdeclImport4(void* impptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3);
void ___CallCdeclImport5(void* impptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4);
void ___CallCdeclImport6(void* impptr, u32 arg0, u32 arg1, u32 arg2, u32 arg3, u32 arg4, u32 arg5);
#define CallCdeclFunction3_I(a,b,c,d) ___CallCdeclImport3(&__imp_##a,b,c,d)
#define CallCdeclFunction4_I(a,b,c,d,e) ___CallCdeclImport4(&__imp_##a,b,c,d,e)
#define CallCdeclFunction5_I(a,b,c,d,e,f) ___CallCdeclImport5(&__imp_##a,b,c,d,e,f)
#define CallCdeclFunction6_I(a,b,c,d,e,f,g) ___CallCdeclImport6(&__imp_##a,b,c,d,e,f,g)
#define DECLARE_IMPORT(x) extern "C" void *__imp_##x
// Utility to generate a call to a std::function object.
//
// Unfortunately, calling operator() directly is undefined behavior in C++
// (this method might be a thunk in the case of multi-inheritance) so we
// have to go through a trampoline function.
template <typename T, typename... Args>
static void CallLambdaTrampoline(const std::function<T(Args...)>* f,
Args... args)
{
(*f)(args...);
}
template <typename T, typename... Args>
void ABI_CallLambdaC(const std::function<T(Args...)>* f, u32 p1)
{
// Double casting is required by VC++ for some reason.
auto trampoline = (void(*)())&XEmitter::CallLambdaTrampoline<T, Args...>;
ABI_CallFunctionPC((void*)trampoline, const_cast<void*>((const void*)f), p1);
}
}; // class XEmitter
class X64CodeBlock : public CodeBlock<XEmitter>
{
private:
void PoisonMemory() override
{
// x86/64: 0xCC = breakpoint
memset(region, 0xCC, region_size);
}
};
} // namespace