bool operator()(X86_Bit Bit, Instruction& rInsn, Operand* pOprd)
{
static OperandReg16<Reg16> OpReg16;
static OperandReg32<Reg32> OpReg32;
static OperandReg64<Reg64> OpReg64;
bool Res = false;
switch (Bit)
{
case X86_Bit_16:
if (rInsn.GetPrefix() & X86_Prefix_OpSize)
{
Res = OpReg32(pOprd);
pOprd->Type() |= O_MEM32;
break;
}
else
{
Res = OpReg16(pOprd);
pOprd->Type() |= O_MEM16;
break;
}
case X86_Bit_64:
if ((rInsn.GetPrefix() & X86_Prefix_REX_w) == X86_Prefix_REX_w)
{
Res = OpReg64(pOprd);
pOprd->Type() |= O_MEM64;
break;
}
case X86_Bit_32:
if (rInsn.GetPrefix() & X86_Prefix_OpSize)
{
Res = OpReg16(pOprd);
pOprd->Type() |= O_MEM16;
break;
}
else
{
Res = OpReg32(pOprd);
pOprd->Type() |= O_MEM32;
break;
}
default: return false;
}
return Res;
}
bool operator()(BinaryStream const& rBinStrm, X86_Bit Bit, TOffset Offset, Instruction& rInsn, Operand* pOprd)
{
OperandIw OpIw;
OperandId OpId;
switch (Bit)
{
case X86_Bit_16:
if (rInsn.GetPrefix() & X86_Prefix_OpSize) return OpId(rBinStrm, Offset, rInsn, pOprd);
else return OpIw(rBinStrm, Offset, rInsn, pOprd);
case X86_Bit_32:
case X86_Bit_64:
if (rInsn.GetPrefix() & X86_Prefix_OpSize) return OpIw(rBinStrm, Offset, rInsn, pOprd);
else return OpId(rBinStrm, Offset, rInsn, pOprd);
default: return false;
}
}
bool X86Architecture::Decode_Ap(BinaryStream const& rBinStrm, TOffset Offset, Instruction& rInsn, Operand* pOprd)
{
OperandLogicAddr16 OpLogicAddr16;
OperandLogicAddr32 OpLogicAddr32;
switch (static_cast<X86_Bit>(m_Cfg.Get("Bit")))
{
case X86_Bit_16:
if (rInsn.GetPrefix() & X86_Prefix_OpSize) return OpLogicAddr32(rBinStrm, Offset, pOprd);
else return OpLogicAddr16(rBinStrm, Offset, pOprd);
case X86_Bit_32:
if (rInsn.GetPrefix() & X86_Prefix_OpSize) return OpLogicAddr16(rBinStrm, Offset, pOprd);
else return OpLogicAddr32(rBinStrm, Offset, pOprd);
default: return false;
}
}
bool operator()(X86_Bit Bit, Instruction& rInsn, Operand* pOprd)
{
OperandReg16<Reg16> OpReg16;
OperandReg32<Reg32> OpReg32;
switch (Bit)
{
case X86_Bit_16:
if (rInsn.GetPrefix() & X86_Prefix_OpSize) return OpReg32(pOprd);
else return OpReg16(pOprd);
case X86_Bit_32:
case X86_Bit_64:
if (rInsn.GetPrefix() & X86_Prefix_OpSize) return OpReg16(pOprd);
else return OpReg32(pOprd);
default: return false;
}
}
bool operator()(BinaryStream const& rBinStrm, X86_Bit Bit, TOffset Offset, Instruction& rInsn, Operand* pOprd)
{
OperandOw OpOw;
OperandOd OpOd;
OperandOq OpOq;
switch (Bit)
{
case X86_Bit_16: if (!OpOw(rBinStrm, Offset, rInsn, pOprd)) return false; break;
case X86_Bit_32: if (!OpOd(rBinStrm, Offset, rInsn, pOprd)) return false; break;
case X86_Bit_64: if (!OpOq(rBinStrm, Offset, rInsn, pOprd)) return false; break;
default: return false;
}
u32 Mem = O_NONE;
switch (Bit)
{
case X86_Bit_16:
if (rInsn.GetPrefix() & X86_Prefix_OpSize) Mem = O_MEM32;
else Mem = O_MEM16;
break;
case X86_Bit_64:
if ((rInsn.GetPrefix() & X86_Prefix_REX_w) == X86_Prefix_REX_w)
{
Mem = O_MEM64;
break;
}
case X86_Bit_32:
if (rInsn.GetPrefix() & X86_Prefix_OpSize) Mem = O_MEM16;
else Mem = O_MEM32;
break;
default: break;
}
pOprd->Type() |= Mem;
return true;
}
bool operator()(BinaryStream const& rBinStrm, X86_Bit Bit, TOffset Offset, Instruction& rInsn, Operand* pOprd)
{
static OperandJw OpJw;
static OperandJd OpJd;
static OperandJqs OpJqs;
switch (Bit)
{
case X86_Bit_16:
if (rInsn.GetPrefix() & X86_Prefix_OpSize) return OpJd(rBinStrm, Offset, rInsn, pOprd);
else return OpJw(rBinStrm, Offset, rInsn, pOprd);
case X86_Bit_32:
if (rInsn.GetPrefix() & X86_Prefix_OpSize) return OpJw(rBinStrm, Offset, rInsn, pOprd);
else return OpJd(rBinStrm, Offset, rInsn, pOprd);
case X86_Bit_64:
if (rInsn.GetPrefix() & X86_Prefix_OpSize) return OpJw(rBinStrm, Offset, rInsn, pOprd);
else return OpJqs(rBinStrm, Offset, rInsn, pOprd);
default: return false;
}
}
bool X86Architecture::Decode_Dy(BinaryStream const& rBinStrm, TOffset Offset, Instruction& rInsn, Operand* pOprd)
{
static u16 aReg [] = { X86_Reg_Dr0, X86_Reg_Dr1, X86_Reg_Dr2, X86_Reg_Dr3, X86_Reg_Dr4, X86_Reg_Dr5, X86_Reg_Dr6, X86_Reg_Dr7 };
static u16 aRegR[] = { X86_Reg_Dr8, X86_Reg_Dr9, X86_Reg_Dr10, X86_Reg_Dr11, X86_Reg_Dr12, X86_Reg_Dr13, X86_Reg_Dr14, X86_Reg_Dr15 };
x86::ModRM ModRm = GetModRm(rBinStrm, Offset);
pOprd->Type() |= static_cast<X86_Bit>(m_Cfg.Get("Bit")) == X86_Bit_64 ? O_REG64 : O_REG32;
if (rInsn.GetPrefix() & X86_Prefix_REX_r)
pOprd->Reg() = aRegR[ModRm.Reg()];
else
pOprd->Reg() = aReg[ModRm.Reg()];
return true;
}