1988-04-07 11:40:46 +00:00
|
|
|
/*
|
|
|
|
(c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands.
|
|
|
|
See the copyright notice in the ACK home directory, in the file "Copyright".
|
|
|
|
*/
|
|
|
|
|
|
|
|
/* $Header$ */
|
|
|
|
|
1988-04-07 10:57:49 +00:00
|
|
|
/*
|
1988-07-25 10:46:15 +00:00
|
|
|
NEGATE A FLOATING POINT (NGF 4)
|
1988-04-07 10:57:49 +00:00
|
|
|
*/
|
|
|
|
/********************************************************/
|
|
|
|
/*
|
|
|
|
Assumes exponent is located in bytes 0 & 1
|
|
|
|
*/
|
|
|
|
/********************************************************/
|
|
|
|
|
|
|
|
#include "FP_types.h"
|
|
|
|
|
|
|
|
ngf4(f)
|
|
|
|
_float f;
|
|
|
|
{
|
|
|
|
char unsigned *p;
|
|
|
|
|
1988-06-29 16:34:40 +00:00
|
|
|
if (f != (_float) 0) {
|
|
|
|
p = (char unsigned *) &f;
|
|
|
|
*p ^= 0x80;
|
|
|
|
}
|
1988-04-07 10:57:49 +00:00
|
|
|
}
|