private SimInstruction(BaseOpcode opcode, byte size, int operandCount, byte opcodeSize)
{
Opcode = opcode;
Size = size;
OperandCount = operandCount;
OpcodeSize = opcodeSize;
}
private static void AdjustInstructionOperands(BaseOpcode opcode, List <SimOperand> operands)
{
if (IsSecondOperandDuplicate(opcode))
{
operands.RemoveAt(1);
}
if (opcode == Opcode.Mul)
{
operands.RemoveAt(0);
}
else if (opcode == Opcode.Div)
{
operands.RemoveAt(0); operands.RemoveAt(0);
}
else if (opcode == Opcode.Idiv)
{
operands.RemoveAt(0); operands.RemoveAt(0);
}
else if (opcode == Opcode.Cdq)
{
operands.Clear();
}
else if (opcode == Opcode.Xchg)
{
operands.RemoveAt(2);
}
else if (opcode == Opcode.Imul)
{
if (operands[0] == operands[1])
{
operands.RemoveAt(0);
}
}
}
private SimInstruction(BaseOpcode opcode, byte size, int operandCount, byte opcodeSize)
{
Opcode = opcode;
Size = size;
OperandCount = operandCount;
OpcodeSize = opcodeSize;
}
public SimInstruction(BaseOpcode opcode, byte size, SimOperand operand1, SimOperand operand2, SimOperand operand3, byte opcodeSize)
: this(opcode, size, 3, opcodeSize)
{
this.Operand1 = operand1;
this.Operand2 = operand2;
this.Operand3 = operand3;
}
public SimInstruction(BaseOpcode opcode, byte size, SimOperand operand1, SimOperand operand2, SimOperand operand3, byte opcodeSize)
: this(opcode, size, 3, opcodeSize)
{
this.Operand1 = operand1;
this.Operand2 = operand2;
this.Operand3 = operand3;
}
public SimInstruction(BaseOpcode opcode, byte size, SimOperand operand1, SimOperand operand2, SimOperand operand3, SimOperand operand4, byte opcodeSize)
: this(opcode, size, 4, opcodeSize)
{
Operand1 = operand1;
Operand2 = operand2;
Operand3 = operand3;
Operand4 = operand4;
}
public SimInstruction(BaseOpcode opcode, byte size, SimOperand operand1, SimOperand operand2, SimOperand operand3, SimOperand operand4, byte opcodeSize)
: this(opcode, size, 4, opcodeSize)
{
Operand1 = operand1;
Operand2 = operand2;
Operand3 = operand3;
Operand4 = operand4;
}
public SimInstruction(BaseOpcode opcode, byte opcodeSize, SimOperand operand1, SimOperand operand2, SimOperand operand3, SimOperand operand4)
: this(opcode, opcodeSize, 4)
{
this.Operand1 = operand1;
this.Operand2 = operand2;
this.Operand3 = operand3;
this.Operand4 = operand4;
}
private static bool IsSecondOperandDuplicate(BaseOpcode opcode)
{
if (opcode == Opcode.Adc)
{
return(true);
}
if (opcode == Opcode.Add)
{
return(true);
}
if (opcode == Opcode.Addsd)
{
return(true);
}
if (opcode == Opcode.Addss)
{
return(true);
}
if (opcode == Opcode.And)
{
return(true);
}
//if (opcode == Opcode.Cld) return true;
if (opcode == Opcode.CmpXchg)
{
return(true);
}
if (opcode == Opcode.Comisd)
{
return(true);
}
if (opcode == Opcode.Comiss)
{
return(true);
}
//if (opcode == Opcode.Cvtsd2ss) return true;
//if (opcode == Opcode.Cvtsi2sd) return true;
//if (opcode == Opcode.Cvtsi2ss) return true;
//if (opcode == Opcode.Cvtss2sd) return true;
//if (opcode == Opcode.Cvttsd2si) return true;
//if (opcode == Opcode.Cvttss2si) return true;
if (opcode == Opcode.Dec)
{
return(true);
}
if (opcode == Opcode.Div)
{
return(true);
}
if (opcode == Opcode.Divsd)
{
return(true);
}
if (opcode == Opcode.Divss)
{
return(true);
}
//if (opcode == Opcode.FarJmp) return true;
//if (opcode == Opcode.Fld) return true;
if (opcode == Opcode.Idiv)
{
return(true);
}
//if (opcode == Opcode.Imul) return false;
if (opcode == Opcode.Inc)
{
return(true);
}
//if (opcode == Opcode.Lea) return true;
if (opcode == Opcode.Mul)
{
return(true);
}
if (opcode == Opcode.Mulsd)
{
return(true);
}
if (opcode == Opcode.Mulss)
{
return(true);
}
if (opcode == Opcode.Not)
{
return(true);
}
if (opcode == Opcode.Or)
{
return(true);
}
if (opcode == Opcode.Rcr)
{
return(true);
}
//if (opcode == Opcode.Rdmsr) return true;
//if (opcode == Opcode.Rdpmc) return true;
//if (opcode == Opcode.Rdtsc) return true;
//if (opcode == Opcode.Rep) return true;
if (opcode == Opcode.Roundsd)
{
return(true);
}
if (opcode == Opcode.Roundss)
{
return(true);
}
if (opcode == Opcode.Sar)
{
return(true);
}
if (opcode == Opcode.Sbb)
{
return(true);
}
if (opcode == Opcode.Shl)
{
return(true);
}
if (opcode == Opcode.Shld)
{
return(true);
}
if (opcode == Opcode.Shr)
{
return(true);
}
if (opcode == Opcode.Shrd)
{
return(true);
}
//if (opcode == Opcode.Stos) return true;
if (opcode == Opcode.Sub)
{
return(true);
}
if (opcode == Opcode.Subsd)
{
return(true);
}
if (opcode == Opcode.Subss)
{
return(true);
}
//if (opcode == Opcode.Ucomisd) return true;
//if (opcode == Opcode.Ucomiss) return true;
//if (opcode == Opcode.Xchg) return true;
if (opcode == Opcode.Xor)
{
return(true);
}
if (opcode == Opcode.Pxor)
{
return(true);
}
//if (opcode == Opcode.Ucomisd) return true;
//if (opcode == Opcode.Ucomiss) return true;
if (opcode == Opcode.Neg)
{
return(true);
}
if (opcode == Opcode.Bts)
{
return(true);
}
if (opcode == Opcode.Btr)
{
return(true);
}
return(false);
}
SimInstruction ISimAdapter.Convert(InstructionNode node, MosaMethod method, BasicBlocks basicBlocks, byte opcodeSize)
{
X86Instruction x86Instruction = node.Instruction as X86Instruction;
if (x86Instruction == null)
{
return(null);
}
BaseOpcode opcode = ConvertToOpcode(x86Instruction, node.ConditionCode);
if (opcode == null)
{
return(null);
}
var operands = GetOperands(node, method, basicBlocks);
AdjustInstructionOperands(opcode, operands);
byte size = 0;
if (node.Size == InstructionSize.Size128)
{
size = 128;
}
else if (node.Size == InstructionSize.Size64)
{
size = 64;
}
else if (node.Size == InstructionSize.Size32)
{
size = 32;
}
else if (node.Size == InstructionSize.Size16)
{
size = 16;
}
else if (node.Size == InstructionSize.Size8)
{
size = 8;
}
SimInstruction instruction = null;
switch (operands.Count)
{
case 0: instruction = new SimInstruction(opcode, size, opcodeSize); break;
case 1: instruction = new SimInstruction(opcode, size, operands[0], opcodeSize); break;
case 2: instruction = new SimInstruction(opcode, size, operands[0], operands[1], opcodeSize); break;
case 3: instruction = new SimInstruction(opcode, size, operands[0], operands[1], operands[2], opcodeSize); break;
case 4: instruction = new SimInstruction(opcode, size, operands[0], operands[1], operands[2], operands[3], opcodeSize); break;
default: break;
}
return(instruction);
}
public SimInstruction(BaseOpcode opcode, byte size, SimOperand operand1, byte opcodeSize)
: this(opcode, size, 1, opcodeSize)
{
this.Operand1 = operand1;
}
public SimInstruction(BaseOpcode opcode, byte size, byte opcodeSize)
: this(opcode, size, 0, opcodeSize)
{
}
public SimInstruction(BaseOpcode opcode, byte size, SimOperand operand1, SimOperand operand2, byte opcodeSize)
: this(opcode, size, 2, opcodeSize)
{
Operand1 = operand1;
Operand2 = operand2;
}
WasmNodeResult IWasmOpcodeVisitor <WasmNodeArg, WasmNodeResult> .Visit(BaseOpcode opcode, WasmNodeArg arg) => throw new System.NotImplementedException();
public SimInstruction(BaseOpcode opcode, byte opcodeSize, SimOperand operand1, SimOperand operand2)
: this(opcode, opcodeSize, 2)
{
this.Operand1 = operand1;
this.Operand2 = operand2;
}
WasmMSILResult IWasmOpcodeVisitor <WasmMSILArg, WasmMSILResult> .Visit(BaseOpcode opcode, WasmMSILArg arg) => throw new NotImplementedException();
public static void Execute(this BaseOpcode opcode, WasmFunctionState state)
{
opcode.AcceptVistor(_executor, state);
}
public SimInstruction(BaseOpcode opcode, byte size, SimOperand operand1, byte opcodeSize)
: this(opcode, size, 1, opcodeSize)
{
this.Operand1 = operand1;
}
public SimInstruction(BaseOpcode opcode, byte size, byte opcodeSize)
: this(opcode, size, 0, opcodeSize)
{
}
public WasmOpcodeExecutor Visit(BaseOpcode opcode, WasmFunctionState state) => throw new System.NotImplementedException();
public SimInstruction(BaseOpcode opcode, byte size, SimOperand operand1, SimOperand operand2, byte opcodeSize)
: this(opcode, size, 2, opcodeSize)
{
Operand1 = operand1;
Operand2 = operand2;
}
