/* ======================================================================== */
/* TEXAS INSTRUMENTS, INC. */
/* */
/* DSPLIB DSP Signal Processing Library */
/* */
/* Release: Version 1.02 */
/* CVS Revision: 1.4 Sun Mar 10 00:53:48 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_maxidx */
/* */
/* REVISION DATE */
/* 28-Jan-2002 */
/* */
/* USAGE */
/* This routine is C-callable and can be called as: */
/* */
/* int DSP_maxidx(const short x[], int nx) */
/* */
/* x[] : Vector array */
/* nx : Number of elements in x[] */
/* */
/* DESCRIPTION */
/* This routine finds the max value of a vector and returns the index */
/* of the value. In case of ties the smallest index is returned. */
/* */
/* C CODE */
/* int DSP_maxidx(const short x[], int nx) */
/* { */
/* int max, index, i; */
/* */
/* max = -32768; */
/* index = 0; */
/* */
/* for (i = 0; i < nx; i++) */
/* if (x[i] > max) */
/* { */
/* max = x[i]; */
/* index = i; */
/* } */
/* return index; */
/* } */
/* */
/* TECHNIQUES */
/* The loop is unrolled three times. */
/* After finding a new max value, multiply units are used to move */
/* value between registers. */
/* */
/* ASSUMPTIONS */
/* nx is a multiple of 3 and >= 3 */
/* */
/* MEMORY NOTE */
/* No memory bank hits under any conditions. */
/* */
/* NOTE */
/* This code is ENDIAN NEUTRAL. */
/* This code is interrupt-tolerant but not interruptible. */
/* */
/* CYCLES */
/* 2 * nx/3 + 13 */
/* */
/* for nx = 108, cycles = 85 */
/* */
/* CODESIZE */
/* 224 bytes */
/* */
/* ------------------------------------------------------------------------ */
/* Copyright (c) 2002 Texas Instruments, Incorporated. */
/* All Rights Reserved. */
/* ======================================================================== */
#ifndef DSP_MAXIDX_H_
#define DSP_MAXIDX_H_ 1
int DSP_maxidx(const short x[], int nx);
#endif
/* ======================================================================== */
/* End of file: dsp_maxidx.h */
/* ------------------------------------------------------------------------ */
/* Copyright (c) 2002 Texas Instruments, Incorporated. */
/* All Rights Reserved. */
/* ======================================================================== */