1 /* ----------------------------------------------------------------------
4  * Description:  Floating-point matrix subtraction
9  * Target Processor: Cortex-M and Cortex-A cores
10  * -------------------------------------------------------------------- */
12  * Copyright (C) 2010-2021 ARM Limited or its affiliates. All rights reserved.
14  * SPDX-License-Identifier: Apache-2.0
20  * www.apache.org/licenses/LICENSE-2.0
47   -
55    a_{1,1}-b_{1,1} & a_{1,2}-b_{1,2} & a_{1,3}-b_{1,3} \\
56    a_{2,1}-b_{2,1} & a_{2,2}-b_{2,2} & a_{2,3}-b_{2,3} \\
57    a_{3,1}-b_{3,1} & a_{3,2}-b_{3,2} & a_{3,3}-b_{3,3} \\
71   @brief         Floating-point matrix subtraction.
76                    - \ref ARM_MATH_SUCCESS       : Operation successful
77                    - \ref ARM_MATH_SIZE_MISMATCH : Matrix size check failed
93     pDataA = pSrcA->pData;  in arm_mat_sub_f32()
94     pDataB = pSrcB->pData;  in arm_mat_sub_f32()
95     pDataDst = pDst->pData;  in arm_mat_sub_f32()
101   if ((pSrcA->numRows != pSrcB->numRows) ||  in arm_mat_sub_f32()
102      (pSrcA->numCols != pSrcB->numCols) ||  in arm_mat_sub_f32()
103      (pSrcA->numRows != pDst->numRows) || (pSrcA->numCols != pDst->numCols))  in arm_mat_sub_f32()
114     numSamples = (uint32_t) pSrcA->numRows * pSrcA->numCols;  in arm_mat_sub_f32()
118         /* C(m,n) = A(m,n) + B(m,n) */  in arm_mat_sub_f32()
130         blkCnt--;  in arm_mat_sub_f32()
159   float32_t *pIn1 = pSrcA->pData;                /* input data matrix pointer A */  in arm_mat_sub_f32()
160   float32_t *pIn2 = pSrcB->pData;                /* input data matrix pointer B */  in arm_mat_sub_f32()
161   float32_t *pOut = pDst->pData;                 /* output data matrix pointer  */  in arm_mat_sub_f32()
170   if ((pSrcA->numRows != pSrcB->numRows) ||  in arm_mat_sub_f32()
171      (pSrcA->numCols != pSrcB->numCols) ||  in arm_mat_sub_f32()
172      (pSrcA->numRows != pDst->numRows) || (pSrcA->numCols != pDst->numCols))  in arm_mat_sub_f32()
185     numSamples = (uint32_t) pSrcA->numRows * pSrcA->numCols;  in arm_mat_sub_f32()
193       /* C(m,n) = A(m,n) - B(m,n) */  in arm_mat_sub_f32()
207       blkCnt--;  in arm_mat_sub_f32()
217       /* C(m,n) = A(m,n) - B(m,n) */  in arm_mat_sub_f32()
219       *pOut++ = (*pIn1++) - (*pIn2++);  in arm_mat_sub_f32()
222       blkCnt--;  in arm_mat_sub_f32()
238   float32_t *pInA = pSrcA->pData;                /* input data matrix pointer A */  in arm_mat_sub_f32()
239   float32_t *pInB = pSrcB->pData;                /* input data matrix pointer B */  in arm_mat_sub_f32()
240   float32_t *pOut = pDst->pData;                 /* output data matrix pointer */  in arm_mat_sub_f32()
249   if ((pSrcA->numRows != pSrcB->numRows) ||  in arm_mat_sub_f32()
250       (pSrcA->numCols != pSrcB->numCols) ||  in arm_mat_sub_f32()
251       (pSrcA->numRows != pDst->numRows)  ||  in arm_mat_sub_f32()
252       (pSrcA->numCols != pDst->numCols)    )  in arm_mat_sub_f32()
263     numSamples = (uint32_t) pSrcA->numRows * pSrcA->numCols;  in arm_mat_sub_f32()
272       /* C(m,n) = A(m,n) - B(m,n) */  in arm_mat_sub_f32()
275       *pOut++ = (*pInA++) - (*pInB++);  in arm_mat_sub_f32()
276       *pOut++ = (*pInA++) - (*pInB++);  in arm_mat_sub_f32()
277       *pOut++ = (*pInA++) - (*pInB++);  in arm_mat_sub_f32()
278       *pOut++ = (*pInA++) - (*pInB++);  in arm_mat_sub_f32()
281       blkCnt--;  in arm_mat_sub_f32()
296       /* C(m,n) = A(m,n) - B(m,n) */  in arm_mat_sub_f32()
299       *pOut++ = (*pInA++) - (*pInB++);  in arm_mat_sub_f32()
302       blkCnt--;  in arm_mat_sub_f32()