ack/mach/proto/fp/adf8.c
1988-08-04 11:16:20 +00:00

34 lines
577 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".
*/
/* $Header$ */
/*
ADD TWO FLOATS - DOUBLE (ADF 8)
*/
#include "FP_types.h"
_double
adf8(s2,s1)
_double s1,s2;
{
EXTEND e1,e2;
if (s1.__double[0] == 0 && s1.__double[1] == 0) {
s1 = s2;
return s1;
}
if (s2.__double[0] == 0 && s2.__double[1] == 0) {
return s1;
}
extend(&s1,&e1,sizeof(_double));
extend(&s2,&e2,sizeof(_double));
add_ext(&e1,&e2);
compact(&e1,&s1,sizeof(_double));
return(s1);
}