34 lines
712 B
C
34 lines
712 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".
|
|
*/
|
|
|
|
/* $Header$ */
|
|
|
|
/*
|
|
#define PRT_EXT
|
|
ADD TWO EXTENDED FORMAT NUMBERS
|
|
*/
|
|
|
|
#include "FP_types.h"
|
|
|
|
add_ext(e1,e2)
|
|
register EXTEND *e1,*e2;
|
|
{
|
|
#ifdef PRT_EXT
|
|
prt_ext("before ADD #1:",e1);
|
|
prt_ext("before ADD #2:",e2);
|
|
#endif PRT_EXT
|
|
if (b64_add(&e1->m1,&e2->m1)) { /* addition carry */
|
|
b64_sft(&e1->m1,1); /* shift mantissa one bit RIGHT */
|
|
e1->m1 |= 0x80000000L; /* set max bit */
|
|
e1->exp++; /* increase the exponent */
|
|
}
|
|
#ifdef PRT_EXT
|
|
prt_ext("AFTER ADD :",e1);
|
|
#endif
|
|
nrm_ext(e1);
|
|
#ifdef PRT_EXT
|
|
prt_ext("AFTER NRM :",e1);
|
|
#endif
|
|
}
|