30 lines
644 B
C
30 lines
644 B
C
/*
|
|
(c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands.
|
|
See the copyright notice in the ACK home directory, in the file "Copyright".
|
|
*/
|
|
|
|
/* $Header$ */
|
|
|
|
/*
|
|
CONVERT DOUBLE TO FLOAT (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"
|
|
|
|
_float
|
|
cff4(src)
|
|
_double src; /* the source itself - THIS TIME it's DOUBLE */
|
|
{
|
|
EXTEND buf;
|
|
|
|
extend(&src,&buf,8); /* no matter what */
|
|
compact(&buf,(_double *) &(src.__double[1]),4);
|
|
return *(_float *)&(src.__double[1]);
|
|
}
|