source: trunk/minix/lib/ack/fphook/fef4.fc@ 12

/*
  (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/fef4.fc,v 1.1 2005/10/10 15:27:43 beng Exp $ */

/*
        SEPERATE INTO EXPONENT AND FRACTION (FEF 4)
*/

#include        "FP_types.h"

void
fef4(r,s1)
SINGLE  s1;
struct fef4_returns     *r;
{
        EXTEND  buf;
        register struct fef4_returns    *p = r; /* make copy; r might refer
                                                   to itself (see table)
                                                */

        extend(&s1,&buf,sizeof(SINGLE));
        if (buf.exp == 0 && buf.m1 == 0 && buf.m2 == 0) {
                p->e = 0;
        }
        else {
                p->e = buf.exp+1;
                buf.exp = -1;
        }
        compact(&buf,&p->f,sizeof(SINGLE));
}