ref: 4009ef3e4222f85f9cb60d5b6d7b75d8b9c4c689
dir: /amr-wb/random.c/
/*-------------------------------------------------------------------*
* RANDOM.C *
*-------------------------------------------------------------------*
* Signed 16 bits random generator. *
*-------------------------------------------------------------------*/
#include "typedef.h"
#include "basic_op.h"
#include "count.h"
Word16 Random(Word16 * seed)
{
/* static Word16 seed = 21845; */
*seed = extract_l(L_add(L_shr(L_mult(*seed, 31821), 1), 13849L)); move16();
return (*seed);
}