From 96d6da4e252b06dcfdc041e7df23e86161c33007 Mon Sep 17 00:00:00 2001 From: rihab kouki Date: Tue, 28 Jul 2020 11:24:49 +0100 Subject: Official ARM version: v5.6.0 --- docs/DSP/html/group__BasicNegate.html | 320 ++++++++++++++++++++++++++++++++++ 1 file changed, 320 insertions(+) create mode 100644 docs/DSP/html/group__BasicNegate.html (limited to 'docs/DSP/html/group__BasicNegate.html') diff --git a/docs/DSP/html/group__BasicNegate.html b/docs/DSP/html/group__BasicNegate.html new file mode 100644 index 0000000..d3317db --- /dev/null +++ b/docs/DSP/html/group__BasicNegate.html @@ -0,0 +1,320 @@ + + + + + +Vector Negate +CMSIS-DSP: Vector Negate + + + + + + + + + + + + + + +
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CMSIS-DSP +  Version 1.7.0 +
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CMSIS DSP Software Library
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+Functions
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Vector Negate
Basic Math Functions
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+Functions

void arm_negate_f32 (const float32_t *pSrc, float32_t *pDst, uint32_t blockSize)
 Negates the elements of a floating-point vector. More...
 
void arm_negate_q15 (const q15_t *pSrc, q15_t *pDst, uint32_t blockSize)
 Negates the elements of a Q15 vector. More...
 
void arm_negate_q31 (const q31_t *pSrc, q31_t *pDst, uint32_t blockSize)
 Negates the elements of a Q31 vector. More...
 
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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Description

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Negates the elements of a vector.

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+    pDst[n] = -pSrc[n],   0 <= n < blockSize.
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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.

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Function Documentation

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void arm_negate_f32 (const float32_t * pSrc,
float32_t * pDst,
uint32_t blockSize 
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Parameters
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[in]pSrcpoints to input vector.
[out]pDstpoints to output vector.
[in]blockSizenumber of samples in each vector.
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Returns
none
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void arm_negate_q15 (const q15_t * pSrc,
q15_t * pDst,
uint32_t blockSize 
)
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Parameters
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[in]pSrcpoints to the input vector.
[out]pDstpoints to the output vector.
[in]blockSizenumber of samples in each vector.
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Returns
none
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Conditions for optimum performance
Input and output buffers should be aligned by 32-bit
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Scaling and Overflow Behavior
The function uses saturating arithmetic. The Q15 value -1 (0x8000) is saturated to the maximum allowable positive value 0x7FFF.
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void arm_negate_q31 (const q31_t * pSrc,
q31_t * pDst,
uint32_t blockSize 
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Parameters
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[in]pSrcpoints to the input vector.
[out]pDstpoints to the output vector.
[in]blockSizenumber of samples in each vector.
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Returns
none
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Scaling and Overflow Behavior
The function uses saturating arithmetic. The Q31 value -1 (0x80000000) is saturated to the maximum allowable positive value 0x7FFFFFFF.
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void arm_negate_q7 (const q7_t * pSrc,
q7_t * pDst,
uint32_t blockSize 
)
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Parameters
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[in]pSrcpoints to the input vector.
[out]pDstpoints to the output vector.
[in]blockSizenumber of samples in each vector.
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Returns
none
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Scaling and Overflow Behavior
The function uses saturating arithmetic. The Q7 value -1 (0x80) is saturated to the maximum allowable positive value 0x7F.
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+ + + + -- cgit