source: trunk/minix/lib/ack/fphook/fef8.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/fef8.fc,v 1.1 2005/10/10 15:27:43 beng Exp $ */

/*
        SEPERATE DOUBLE INTO EXPONENT AND FRACTION (FEF 8)
*/

#include        "FP_types.h"

void
fef8(r, s1)
DOUBLE  s1;
struct fef8_returns *r;
{
        EXTEND  buf;
        register struct fef8_returns *p = r;    /* make copy, r might refer
                                                   to itself (see table)
                                                */

        extend(&s1.d[0],&buf,sizeof(DOUBLE));
        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.d[0],sizeof(DOUBLE));
}