这段时间做教程，才发现这个规律，之前以为是定点里面也有调用呢：
void arm_offset_f32(
const float32_t * pSrc,
float32_t offset,
float32_t * pDst,
uint32_t blockSize)
{
uint32_t blkCnt; /* Loop counter */
#if defined(ARM_MATH_NEON_EXPERIMENTAL)
float32x4_t vec1;
float32x4_t res;
/* Compute 4 outputs at a time */
blkCnt = blockSize >> 2U;
while (blkCnt > 0U)
{
/* C = A + offset */
/* Add offset and then store the results in the destination buffer. */
vec1 = vld1q_f32(pSrc);
res = vaddq_f32(vec1,vdupq_n_f32(offset));
vst1q_f32(pDst, res);
/* Increment pointers */
pSrc += 4;
pDst += 4;
/* Decrement the loop counter */
blkCnt--;
}
/* Tail */
blkCnt = blockSize & 0x3;
#else
省略。。。。。。。。
}
} |
|
楼主
