Function Descriptions
3.40 Optimized Memory Set
Description:
This module performs optimized memory sets.
Header File:
FPU.h
Declaration:
void memset_fast(void
*
dst, int16 value, Uint16 N)
Usage:
memset_fast(dst, value, N);
void* dst
pointer to destination
int16 value
initialization value
Uint16 N
number of 16-bit words to initialize
Alignment Requirements:
None
Notes:
1. The function checks for the case of N=0 and just returns if true.
Example:
#include "FPU.h"
#define N 10
int x[N];
main()
{
memset_fast(x, 4, N);
}
Benchmark Information:
Number of Cycles = 1 cycle per copy + 20 cycles of overhead (including the call and return).
This assumes src and dst are located in different internal RAM blocks.
Sep 10, 2012 74
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