Convert 32-bit floating point value
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void riscv_float_to_f16(const float32_t *pSrc, float16_t *pDst, uint32_t blockSize)
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void riscv_float_to_f64(const float32_t *pSrc, float64_t *pDst, uint32_t blockSize)
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void riscv_float_to_q15(const float32_t *pSrc, q15_t *pDst, uint32_t blockSize)
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void riscv_float_to_q31(const float32_t *pSrc, q31_t *pDst, uint32_t blockSize)
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void riscv_float_to_q7(const float32_t *pSrc, q7_t *pDst, uint32_t blockSize)
- group float_to_x
Functions
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void riscv_float_to_f16(const float32_t *pSrc, float16_t *pDst, uint32_t blockSize)
Converts the elements of the floating-point vector to f16 vector.
Converts the elements of the floating-point vector to Q31 vector.
- Parameters
pSrc – [in] points to the f32 input vector
pDst – [out] points to the f16 output vector
blockSize – [in] number of samples in each vector
- Returns
none
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void riscv_float_to_f64(const float32_t *pSrc, float64_t *pDst, uint32_t blockSize)
Converts the elements of the floating-point vector to f64 vector.
Converts the elements of the floating-point vector to 64 bit floating-point vector.
- Parameters
pSrc – [in] points to the f32 input vector
pDst – [out] points to the f64 output vector
blockSize – [in] number of samples in each vector
- Returns
none
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void riscv_float_to_q15(const float32_t *pSrc, q15_t *pDst, uint32_t blockSize)
Converts the elements of the floating-point vector to Q15 vector.
- Details
The equation used for the conversion process is:
- Scaling and Overflow Behavior
The function uses saturating arithmetic. Results outside of the allowable Q15 range [0x8000 0x7FFF] are saturated.
Note
In order to apply rounding, the library should be rebuilt with the ROUNDING macro defined in the preprocessor section of project options.
- Parameters
pSrc – [in] points to the floating-point input vector
pDst – [out] points to the Q15 output vector
blockSize – [in] number of samples in each vector
- Returns
none
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void riscv_float_to_q31(const float32_t *pSrc, q31_t *pDst, uint32_t blockSize)
Converts the elements of the floating-point vector to Q31 vector.
- Details
The equation used for the conversion process is:
- Scaling and Overflow Behavior
The function uses saturating arithmetic. Results outside of the allowable Q31 range[0x80000000 0x7FFFFFFF] are saturated.
Note
In order to apply rounding, the library should be rebuilt with the ROUNDING macro defined in the preprocessor section of project options.
- Parameters
pSrc – [in] points to the floating-point input vector
pDst – [out] points to the Q31 output vector
blockSize – [in] number of samples in each vector
- Returns
none
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void riscv_float_to_q7(const float32_t *pSrc, q7_t *pDst, uint32_t blockSize)
Converts the elements of the floating-point vector to Q7 vector.
- Description:
The equation used for the conversion process is:
- Scaling and Overflow Behavior:
The function uses saturating arithmetic. Results outside of the allowable Q7 range [0x80 0x7F] will be saturated.
Note
In order to apply rounding, the library should be rebuilt with the ROUNDING macro defined in the preprocessor section of project options.
- Parameters
*pSrc – [in] points to the floating-point input vector
*pDst – [out] points to the Q7 output vector
blockSize – [in] length of the input vector
- Returns
none.
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void riscv_float_to_f16(const float32_t *pSrc, float16_t *pDst, uint32_t blockSize)