minix/lib/ack/libfp/fef8.fc

33 lines
632 B
Text

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