fpu_extern.h revision 176491
1/* $NetBSD: fpu_extern.h,v 1.3 2005/12/11 12:18:42 christos Exp $ */ 2/* $FreeBSD: head/sys/powerpc/fpu/fpu_extern.h 176491 2008-02-23 20:05:26Z marcel $ */ 3 4/*- 5 * Copyright (c) 1995 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Christos Zoulas. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by the NetBSD 22 * Foundation, Inc. and its contributors. 23 * 4. Neither the name of The NetBSD Foundation nor the names of its 24 * contributors may be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 29 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 30 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 31 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 32 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 33 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 34 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 35 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 36 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 37 * POSSIBILITY OF SUCH DAMAGE. 38 */ 39 40struct proc; 41struct fpreg; 42struct trapframe; 43union instr; 44struct fpemu; 45struct fpn; 46 47/* fpu.c */ 48int fpu_emulate(struct trapframe *, struct fpreg *); 49int fpu_execute(struct trapframe *, struct fpemu *, union instr *); 50 51/* fpu_add.c */ 52struct fpn *fpu_add(struct fpemu *); 53 54/* fpu_compare.c */ 55void fpu_compare(struct fpemu *, int); 56 57/* fpu_div.c */ 58struct fpn *fpu_div(struct fpemu *); 59 60/* fpu_explode.c */ 61int fpu_itof(struct fpn *, u_int); 62int fpu_xtof(struct fpn *, u_int64_t); 63int fpu_stof(struct fpn *, u_int); 64int fpu_dtof(struct fpn *, u_int, u_int); 65void fpu_explode(struct fpemu *, struct fpn *, int, int); 66 67/* fpu_implode.c */ 68u_int fpu_ftoi(struct fpemu *, struct fpn *); 69u_int fpu_ftox(struct fpemu *, struct fpn *, u_int *); 70u_int fpu_ftos(struct fpemu *, struct fpn *); 71u_int fpu_ftod(struct fpemu *, struct fpn *, u_int *); 72void fpu_implode(struct fpemu *, struct fpn *, int, u_int *); 73 74/* fpu_mul.c */ 75struct fpn *fpu_mul(struct fpemu *); 76 77/* fpu_sqrt.c */ 78struct fpn *fpu_sqrt(struct fpemu *); 79 80/* fpu_subr.c */ 81int fpu_shr(struct fpn *, int); 82void fpu_norm(struct fpn *); 83struct fpn *fpu_newnan(struct fpemu *); 84