public static OpcodeEncoder AppendRM(this OpcodeEncoder encoder, Operand operand)
{
if (operand.IsCPURegister)
{
return(encoder.AppendRM(operand.Register));
}
else
{
return(encoder.AppendRM(Bits.b101));
}
}
public static OpcodeEncoder ModRegRMSIBDisplacement(this OpcodeEncoder encoder, Operand result, Operand op1, Operand op2)
{
if (op2.IsConstant)
{
encoder.AppendMod(true, op2); // 2:mod
encoder.AppendRegister(result.Register); // 3:register (destination)
encoder.AppendRM(op1); // 3:r/m (source)
encoder.AppendConditionalDisplacement(op2); // 8/32:displacement value
}
else
{
encoder.AppendMod(Bits.b00); // 2:mod
encoder.AppendRegister(result.Register); // 3:register (destination)
encoder.AppendRM(Bits.b100); // 3:r/m (source)
encoder.AppendSIB(1, op2.Register, op1.Register); // 8:sib (scale, index, base)
}
return(encoder);
}