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void | arm_negate_f16 (const float16_t *pSrc, float16_t *pDst, uint32_t blockSize) |
| Negates the elements of a floating-point vector. More...
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void | arm_negate_f32 (const float32_t *pSrc, float32_t *pDst, uint32_t blockSize) |
| Negates the elements of a floating-point vector. More...
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void | arm_negate_f64 (const float64_t *pSrc, float64_t *pDst, uint32_t blockSize) |
| Negates the elements of a floating-point vector. More...
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void | arm_negate_q15 (const q15_t *pSrc, q15_t *pDst, uint32_t blockSize) |
| Negates the elements of a Q15 vector. More...
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void | arm_negate_q31 (const q31_t *pSrc, q31_t *pDst, uint32_t blockSize) |
| Negates the elements of a Q31 vector. More...
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void | arm_negate_q7 (const q7_t *pSrc, q7_t *pDst, uint32_t blockSize) |
| Negates the elements of a Q7 vector. More...
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Negates the elements of a vector.
pDst[n] = -pSrc[n], 0 <= n < blockSize.
The functions support in-place computation allowing the source and destination pointers to reference the same memory buffer. There are separate functions for floating-point, Q7, Q15, and Q31 data types.
void arm_negate_f16 |
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const float16_t * |
pSrc, |
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float16_t * |
pDst, |
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uint32_t |
blockSize |
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) |
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- Parameters
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[in] | pSrc | points to input vector. |
[out] | pDst | points to output vector. |
[in] | blockSize | number of samples in each vector. |
- Returns
- none
- Parameters
-
[in] | pSrc | points to input vector. |
[out] | pDst | points to output vector. |
[in] | blockSize | number of samples in each vector. |
- Returns
- none
- Parameters
-
[in] | pSrc | points to input vector. |
[out] | pDst | points to output vector. |
[in] | blockSize | number of samples in each vector. |
- Returns
- none
void arm_negate_q15 |
( |
const q15_t * |
pSrc, |
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q15_t * |
pDst, |
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uint32_t |
blockSize |
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) |
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- Parameters
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[in] | pSrc | points to the input vector. |
[out] | pDst | points to the output vector. |
[in] | blockSize | number of samples in each vector. |
- Returns
- none
- Conditions for optimum performance
- Input and output buffers should be aligned by 32-bit
- Scaling and Overflow Behavior
- The function uses saturating arithmetic. The Q15 value -1 (0x8000) is saturated to the maximum allowable positive value 0x7FFF.
void arm_negate_q31 |
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const q31_t * |
pSrc, |
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q31_t * |
pDst, |
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uint32_t |
blockSize |
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) |
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- Parameters
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[in] | pSrc | points to the input vector. |
[out] | pDst | points to the output vector. |
[in] | blockSize | number of samples in each vector. |
- Returns
- none
- Scaling and Overflow Behavior
- The function uses saturating arithmetic. The Q31 value -1 (0x80000000) is saturated to the maximum allowable positive value 0x7FFFFFFF.
void arm_negate_q7 |
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const q7_t * |
pSrc, |
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q7_t * |
pDst, |
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uint32_t |
blockSize |
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) |
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- Parameters
-
[in] | pSrc | points to the input vector. |
[out] | pDst | points to the output vector. |
[in] | blockSize | number of samples in each vector. |
- Returns
- none
- Scaling and Overflow Behavior
- The function uses saturating arithmetic. The Q7 value -1 (0x80) is saturated to the maximum allowable positive value 0x7F.