blob: 0bf410664bddafcf45b200f9a0c450e0250df95d (
plain) (
tree)
|
|
/**
* @file score/src/ts64divide.c
*/
/*
* COPYRIGHT (c) 1989-2007.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include <rtems/system.h>
#include <sys/types.h>
#include <rtems/score/timestamp.h>
/* This method is never inlined. */
#if defined(CPU_RTEMS_SCORE_TIMESTAMP_IS_INT64)
void _Timestamp64_Divide(
const Timestamp64_Control *_lhs,
const Timestamp64_Control *_rhs,
uint32_t *_ival_percentage,
uint32_t *_fval_percentage
)
{
Timestamp64_Control answer;
if ( *_rhs == 0 ) {
*_ival_percentage = 0;
*_fval_percentage = 0;
return;
}
/*
* This looks odd but gives the results the proper precision.
*
* TODO: Rounding on the last digit of the fval.
*/
answer = (*_lhs * 100000) / *_rhs;
*_ival_percentage = answer / 1000;
*_fval_percentage = answer % 1000;
}
#endif
|