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
45   @brief         Floating-point matrix subtraction.
50                    - \ref ARM_MATH_SUCCESS       : Operation successful
51                    - \ref ARM_MATH_SIZE_MISMATCH : Matrix size check failed
68     pDataA = pSrcA->pData;  in arm_mat_sub_f16()
69     pDataB = pSrcB->pData;  in arm_mat_sub_f16()
70     pDataDst = pDst->pData;  in arm_mat_sub_f16()
76   if ((pSrcA->numRows != pSrcB->numRows) ||  in arm_mat_sub_f16()
77      (pSrcA->numCols != pSrcB->numCols) ||  in arm_mat_sub_f16()
78      (pSrcA->numRows != pDst->numRows) || (pSrcA->numCols != pDst->numCols))  in arm_mat_sub_f16()
89     numSamples = (uint32_t) pSrcA->numRows * pSrcA->numCols;  in arm_mat_sub_f16()
93         /* C(m,n) = A(m,n) + B(m,n) */  in arm_mat_sub_f16()
105         blkCnt--;  in arm_mat_sub_f16()
134   float16_t *pInA = pSrcA->pData;                /* input data matrix pointer A */  in arm_mat_sub_f16()
135   float16_t *pInB = pSrcB->pData;                /* input data matrix pointer B */  in arm_mat_sub_f16()
136   float16_t *pOut = pDst->pData;                 /* output data matrix pointer */  in arm_mat_sub_f16()
145   if ((pSrcA->numRows != pSrcB->numRows) ||  in arm_mat_sub_f16()
146       (pSrcA->numCols != pSrcB->numCols) ||  in arm_mat_sub_f16()
147       (pSrcA->numRows != pDst->numRows)  ||  in arm_mat_sub_f16()
148       (pSrcA->numCols != pDst->numCols)    )  in arm_mat_sub_f16()
159     numSamples = (uint32_t) pSrcA->numRows * pSrcA->numCols;  in arm_mat_sub_f16()
168       /* C(m,n) = A(m,n) - B(m,n) */  in arm_mat_sub_f16()
171       *pOut++ = (_Float16)(*pInA++) - (_Float16)(*pInB++);  in arm_mat_sub_f16()
172       *pOut++ = (_Float16)(*pInA++) - (_Float16)(*pInB++);  in arm_mat_sub_f16()
173       *pOut++ = (_Float16)(*pInA++) - (_Float16)(*pInB++);  in arm_mat_sub_f16()
174       *pOut++ = (_Float16)(*pInA++) - (_Float16)(*pInB++);  in arm_mat_sub_f16()
177       blkCnt--;  in arm_mat_sub_f16()
192       /* C(m,n) = A(m,n) - B(m,n) */  in arm_mat_sub_f16()
195       *pOut++ = (_Float16)(*pInA++) - (_Float16)(*pInB++);  in arm_mat_sub_f16()
198       blkCnt--;  in arm_mat_sub_f16()