public int Load(IInstructionOperand operand)
{
if (operand is ConstantOperand <double> )
{
Emit(new Instruction(InstructionType.LdNum, operand));
return(1);
}
if (operand is ConstantOperand <string> )
{
Emit(new Instruction(InstructionType.LdStr, operand));
return(1);
}
if (operand is IdentifierOperand identifier)
{
if (identifier.FrameIndex == LocalIndex)
{
Emit(new Instruction(InstructionType.LdLocF, new ImmediateOperand(identifier.Id)));
}
else if (identifier.FrameIndex < 0 && identifier.FrameIndex == -ArgIndex)
{
Emit(new Instruction(InstructionType.LdArgF, new ImmediateOperand(identifier.Id)));
}
else
{
Emit(new Instruction(InstructionType.LdLoc, operand));
}
return(1);
}
throw new NotSupportedException();
}
public int Load(IInstructionOperand operand)
{
if (operand is ConstantOperand <double> )
{
Emit(new Instruction(InstructionType.LdNum, operand));
return(1);
}
if (operand is ConstantOperand <string> )
{
Emit(new Instruction(InstructionType.LdStr, operand));
return(1);
}
if (operand is IdentifierOperand)
{
Emit(new Instruction(InstructionType.LdLoc, operand));
return(1);
}
throw new NotSupportedException();
}
public void Load(IInstructionOperand operand)
{
InstructionType type;
if (operand is ConstantOperand<double>)
type = InstructionType.LdNum;
else if (operand is ConstantOperand<string>)
type = InstructionType.LdStr;
else if (operand is IdentifierOperand)
type = InstructionType.LdLoc;
else
throw new NotSupportedException();
Emit(new Instruction(type, operand));
}
