Functions
DSPF_blk_eswap64
Collaboration diagram for DSPF_blk_eswap64:

Functions

void DSPF_blk_eswap64 (void *restrict src, void *restrict dst, int n_dbls)
 

Detailed Description

Function Documentation

◆ DSPF_blk_eswap64()

void DSPF_blk_eswap64 ( void *restrict  src,
void *restrict  dst,
int  n_dbls 
)
The data in the x[] array is endian swapped, meaning that the 
byte-order of the bytes within each double-word of the r[] array 
is reversed. This facilitates moving big-endian data to a 
little-endian system or vice-versa.
When the r pointer is non-NULL, the endian-swap occurs out-of-place, 
similar to a block move. When the r pointer is NULL, the endian-swap 
occurs in-place, allowing the swap to occur without using any 
additional storage.

 @param src    = Source data, must be double-word aligned.
 @param dst    = Destination data, must be double-word aligned.
 @param n_dbls = Number of 64-bit elements to swap.
Algorithm:
DSPF_blk_eswap64_cn.c is the natural C equivalent of the optimized intrinsic C code without restrictions note that the intrinsic C code is optimized and restrictions may apply.
Assumptions:
Input and output arrays do not overlap, except when “dst == NULL” so that the operation occurs in-place.
The input array and output array are double-word aligned.
nx is a multiple of 2.
Implementation notes:
Endian Support: The code supports both big and little endian modes.
Interruptibility: The code is interruptible.

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