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_iq _IQrmpy(_iq A,_iq B);

/**********************************************************************************************************************************
* Function Name  : _IQrmpy
* Description    : Multiplication operation of IQ format number, result 4 is rounded to 5: A*B
* Input          : A and B are two multipliers in the same IQ format
* Return         : The product of A and B, the same as the IQ format of the parameter
**********************************************************************************************************************************/