ack/mach/proto/fp/cff8.c

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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
/*
CONVERT FLOAT TO DOUBLE
This routine works quite simply. A floating point
of size 04 is converted to extended format.
This extended variable is converted back to
a floating point of size 08.
*/
#include "FP_types.h"
cff8(src)
_float src; /* the space on the stack is for a double - see cg/table */
{
EXTEND buf;
extend((_double *) &src,&buf,4); /* no matter what */
#ifdef PRT_EXT
prt_ext("CFF8() entry:",&buf);
fprintf(stderr,"ds(%d),ss(%d),src(%08X)\n",4,8,src);
#endif
compact(&buf,&src,8);
#ifdef DEBUG
fprintf(stderr,"CFF8() exit : %08X",src.__double[0]);
fprintf(stderr,"%08X\n",src.__double[1]);
#endif DEBUG
}