/*	$OpenBSD: fpu_extern.h,v 1.3 2002/03/14 01:26:43 millert Exp $	*/
/*	$NetBSD: fpu_extern.h,v 1.1 1996/03/14 19:41:56 christos Exp $	*/

/*
 * Copyright (c) 1995 Christos Zoulas.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Christos Zoulas.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

struct proc;
struct fpstate;
struct trapframe;
union instr;
struct fpemu;
struct fpn;

/* fpu.c */
void fpu_cleanup(struct proc *, struct fpstate *);
int fpu_emulate(struct proc *, struct trapframe *, struct fpstate *);
int fpu_execute(struct fpemu *, union instr);

/* fpu_add.c */
struct fpn *fpu_add(struct fpemu *);

/* fpu_compare.c */
void fpu_compare(struct fpemu *, int);

/* fpu_div.c */
struct fpn *fpu_div(struct fpemu *);

/* fpu_explode.c */
int fpu_itof(struct fpn *, u_int);
int fpu_stof(struct fpn *, u_int);
int fpu_dtof(struct fpn *, u_int, u_int );
int fpu_xtof(struct fpn *, u_int, u_int , u_int , u_int );
void fpu_explode(struct fpemu *, struct fpn *, int, int );

/* fpu_implode.c */
u_int fpu_ftoi(struct fpemu *, struct fpn *);
u_int fpu_ftos(struct fpemu *, struct fpn *);
u_int fpu_ftod(struct fpemu *, struct fpn *, u_int *);
u_int fpu_ftox(struct fpemu *, struct fpn *, u_int *);
void fpu_implode(struct fpemu *, struct fpn *, int, u_int *);

/* fpu_mul.c */
struct fpn *fpu_mul(struct fpemu *);

/* fpu_sqrt.c */
struct fpn *fpu_sqrt(struct fpemu *);

/* fpu_subr.c */
int fpu_shr(register struct fpn *, register int);
void fpu_norm(register struct fpn *);
struct fpn *fpu_newnan(register struct fpemu *);