#include "ref.h"

arm_status ref_mat_sub_f32(
  const arm_matrix_instance_f32 * pSrcA,
  const arm_matrix_instance_f32 * pSrcB,
  arm_matrix_instance_f32 * pDst)
{
	uint32_t i;
  uint32_t numSamples;                           /* total number of elements in the matrix  */

	/* Total number of samples in the input matrix */
	numSamples = (uint32_t) pSrcA->numRows * pSrcA->numCols;
	
	for(i=0;i<numSamples;i++)
	{
		pDst->pData[i] = pSrcA->pData[i] - pSrcB->pData[i];
	}
	
	return ARM_MATH_SUCCESS;
}

arm_status ref_mat_sub_q31(
  const arm_matrix_instance_q31 * pSrcA,
  const arm_matrix_instance_q31 * pSrcB,
  arm_matrix_instance_q31 * pDst)
{
	uint32_t i;
  uint32_t numSamples;                           /* total number of elements in the matrix  */

	/* Total number of samples in the input matrix */
	numSamples = (uint32_t) pSrcA->numRows * pSrcA->numCols;
	
	for(i=0;i<numSamples;i++)
	{
		pDst->pData[i] = ref_sat_q31( (q63_t)pSrcA->pData[i] - pSrcB->pData[i]);
	}
	
	return ARM_MATH_SUCCESS;
}

arm_status ref_mat_sub_q15(
  const arm_matrix_instance_q15 * pSrcA,
  const arm_matrix_instance_q15 * pSrcB,
  arm_matrix_instance_q15 * pDst)
{
	uint32_t i;
  uint32_t numSamples;                           /* total number of elements in the matrix  */

	/* Total number of samples in the input matrix */
	numSamples = (uint32_t) pSrcA->numRows * pSrcA->numCols;
	
	for(i=0;i<numSamples;i++)
	{
		pDst->pData[i] = ref_sat_q15( (q31_t)pSrcA->pData[i] - pSrcB->pData[i]);
	}
	
	return ARM_MATH_SUCCESS;
}