/* ======================================================================== */
/* TEXAS INSTRUMENTS, INC. */
/* */
/* DSPLIB DSP Signal Processing Library */
/* */
/* Release: Version 1.02 */
/* CVS Revision: 1.4 Fri Mar 29 20:00:04 2002 (UTC) */
/* Snapshot date: 18-Apr-2002 */
/* */
/* This library contains proprietary intellectual property of Texas */
/* Instruments, Inc. The library and its source code are protected by */
/* various copyrights, and portions may also be protected by patents or */
/* other legal protections. */
/* */
/* This software is licensed for use with Texas Instruments TMS320 */
/* family DSPs. This license was provided to you prior to installing */
/* the software. You may review this license by consulting the file */
/* TI_license.PDF which accompanies the files in this library. */
/* ------------------------------------------------------------------------ */
/* Copyright (C) 2002 Texas Instruments, Incorporated. */
/* All Rights Reserved. */
/* ======================================================================== */
/* ======================================================================== */
/* */
/* TEXAS INSTRUMENTS, INC. */
/* */
/* NAME */
/* DSP_vecsumsq */
/* */
/* REVISION DATE */
/* 13-Aug-1999 */
/* */
/* USAGE */
/* This routine is C callable, and has the following C prototype: */
/* */
/* int DSP_vecsumsq */
/* ( */
/* const short *x, // Pointer to vector // */
/* int nx // Length of vector. // */
/* ) */
/* */
/* This routine returns the sum of squares as its return value. */
/* */
/* DESCRIPTION */
/* The "DSP_vecsumsq" function returns the sum of squares of the */
/* elements contained in vector "x". */
/* */
/* C CODE */
/* The following C code is a general implementation without */
/* restrictions. This implementation may have restrictions, as */
/* noted under "ASSUMPTIONS" below. */
/* */
/* int DSP_vecsumsq */
/* ( */
/* const short *x, // Pointer to vector // */
/* int nx // Length of vector. // */
/* ) */
/* { */
/* int i, sum = 0; */
/* */
/* for (i = 0; i < nx; i++) */
/* sum += x[i] * x[i]; */
/* */
/* return sum; */
/* } */
/* */
/* */
/* ASSUMPTIONS */
/* The input length is a multiple of 2 and at least 8. */
/* */
/* NOTES */
/* This function is interrupt tolerant, but not interruptible. */
/* It locks out interrupts for its entire duration. */
/* */
/* MEMORY NOTE */
/* This function is ENDIAN NEUTRAL. */
/* No bank conflicts occur under any conditions. */
/* */
/* CYCLES */
/* cycles = count/2 + 19. */
/* */
/* CODESIZE */
/* 192 bytes */
/* */
/* ------------------------------------------------------------------------ */
/* Copyright (c) 2002 Texas Instruments, Incorporated. */
/* All Rights Reserved. */
/* ======================================================================== */
#ifndef DSP_VECSUMSQ_H_
#define DSP_VECSUMSQ_H_ 1
int DSP_vecsumsq
(
const short *x, /* Pointer to vector */
int nx /* Length of vector. */
);
#endif
/* ======================================================================== */
/* End of file: dsp_vecsumsq.h */
/* ------------------------------------------------------------------------ */
/* Copyright (c) 2002 Texas Instruments, Incorporated. */
/* All Rights Reserved. */
/* ======================================================================== */