1 /* $NetBSD: fpu_extern.h,v 1.2 1998/09/05 15:28:08 christos Exp $ */ 2 3 /*- 4 * Copyright (c) 1995 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 struct proc; 40 struct fpstate; 41 struct trapframe; 42 union instr; 43 struct fpemu; 44 struct fpn; 45 46 /* fpu.c */ 47 void fpu_cleanup __P((struct proc *, struct fpstate *)); 48 int fpu_emulate __P((struct proc *, struct trapframe *, struct fpstate *)); 49 int fpu_execute __P((struct fpemu *, union instr)); 50 51 /* fpu_add.c */ 52 struct fpn *fpu_add __P((struct fpemu *)); 53 54 /* fpu_compare.c */ 55 void fpu_compare __P((struct fpemu *, int)); 56 57 /* fpu_div.c */ 58 struct fpn *fpu_div __P((struct fpemu *)); 59 60 /* fpu_explode.c */ 61 int fpu_itof __P((struct fpn *, u_int)); 62 int fpu_stof __P((struct fpn *, u_int)); 63 int fpu_dtof __P((struct fpn *, u_int, u_int )); 64 int fpu_xtof __P((struct fpn *, u_int, u_int , u_int , u_int )); 65 void fpu_explode __P((struct fpemu *, struct fpn *, int, int )); 66 67 /* fpu_implode.c */ 68 u_int fpu_ftoi __P((struct fpemu *, struct fpn *)); 69 u_int fpu_ftos __P((struct fpemu *, struct fpn *)); 70 u_int fpu_ftod __P((struct fpemu *, struct fpn *, u_int *)); 71 u_int fpu_ftox __P((struct fpemu *, struct fpn *, u_int *)); 72 void fpu_implode __P((struct fpemu *, struct fpn *, int, u_int *)); 73 74 /* fpu_mul.c */ 75 struct fpn *fpu_mul __P((struct fpemu *)); 76 77 /* fpu_sqrt.c */ 78 struct fpn *fpu_sqrt __P((struct fpemu *)); 79 80 /* fpu_subr.c */ 81 int fpu_shr __P((register struct fpn *, register int)); 82 void fpu_norm __P((register struct fpn *)); 83 struct fpn *fpu_newnan __P((register struct fpemu *)); 84