/* IA-32 SSE version of peakval
 * Copyright 2004 Phil Karn, KA9Q
 */

#include <stdlib.h>
#include "fec.h"

int peakval_sse_assist(signed short *, int);

int peakval_sse(signed short *b, int cnt)
{
  int peak = 0;
  int a;

  while (((int)b & 7) != 0 && cnt != 0) {
    a = abs(*b);
    if (a > peak) {
      peak = a;
    }
    b++;
    cnt--;
  }
  a = peakval_sse_assist(b, cnt);
  if (a > peak) {
    peak = a;
  }
  b += cnt & ~3;
  cnt &= 3;

  while (cnt != 0) {
    a = abs(*b);
    if (a > peak) {
      peak = a;
    }
    b++;
    cnt--;
  }
  return peak;
}