source: trunk/minix/lib/ack/fphook/cff4.fc@ 10

/*
  (c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands.
  See the copyright notice in the ACK home directory, in the file "Copyright".
*/

/* $Header: /cvsup/minix/src/lib/ack/fphook/cff4.fc,v 1.1 2005/10/10 15:27:43 beng Exp $ */

/*
                CONVERT DOUBLE TO SINGLE (CFF 8 4)

        This routine works quite simply. A floating point
        of size 08 is converted to extended format.
        This extended variable is converted back to
        a floating point of size 04.

*/

#include        "FP_types.h"

void
cff4(src)
DOUBLE  src;    /* the source itself -  THIS TIME it's DOUBLE */
{
        EXTEND  buf;

        extend(&src.d[0],&buf,sizeof(DOUBLE));  /* no matter what */
        compact(&buf,&(src.d[1]),sizeof(SINGLE));
}