1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 * 31 * $NetBSD: fpu_extern.h,v 1.4 2000/08/03 18:32:08 eeh Exp $ 32 * $FreeBSD: head/lib/libc/sparc64/fpu/fpu_extern.h 326193 2017-11-25 17:12:48Z pfg $ 33 */ 34 35 #ifndef _SPARC64_FPU_FPU_EXTERN_H_ 36 #define _SPARC64_FPU_FPU_EXTERN_H_ 37 38 #include <stdint.h> 39 40 struct utrapframe; 41 struct fpemu; 42 struct fpn; 43 44 /* fpu.c */ 45 int __fpu_exception(struct utrapframe *tf); 46 47 /* fpu_add.c */ 48 struct fpn *__fpu_add(struct fpemu *); 49 50 /* fpu_compare.c */ 51 void __fpu_compare(struct fpemu *, int, int); 52 53 /* fpu_div.c */ 54 struct fpn *__fpu_div(struct fpemu *); 55 56 /* fpu_explode.c */ 57 int __fpu_itof(struct fpn *, uint32_t); 58 int __fpu_xtof(struct fpn *, uint64_t); 59 int __fpu_stof(struct fpn *, uint32_t); 60 int __fpu_dtof(struct fpn *, uint32_t, uint32_t); 61 int __fpu_qtof(struct fpn *, uint32_t, uint32_t, uint32_t, uint32_t); 62 void __fpu_explode(struct fpemu *, struct fpn *, int, int); 63 64 /* fpu_implode.c */ 65 uint32_t __fpu_ftoi(struct fpemu *, struct fpn *); 66 uint32_t __fpu_ftox(struct fpemu *, struct fpn *, uint32_t *); 67 uint32_t __fpu_ftos(struct fpemu *, struct fpn *); 68 uint32_t __fpu_ftod(struct fpemu *, struct fpn *, uint32_t *); 69 uint32_t __fpu_ftoq(struct fpemu *, struct fpn *, uint32_t *); 70 void __fpu_implode(struct fpemu *, struct fpn *, int, uint32_t *); 71 72 /* fpu_mul.c */ 73 struct fpn *__fpu_mul(struct fpemu *); 74 75 /* fpu_sqrt.c */ 76 struct fpn *__fpu_sqrt(struct fpemu *); 77 78 /* fpu_subr.c */ 79 /* 80 * Shift a number right some number of bits, taking care of round/sticky. 81 * Note that the result is probably not a well-formed number (it will lack 82 * the normal 1-bit mant[0]&FP_1). 83 */ 84 int __fpu_shr(register struct fpn *, register int); 85 void __fpu_norm(register struct fpn *); 86 /* Build a new Quiet NaN (sign=0, frac=all 1's). */ 87 struct fpn *__fpu_newnan(register struct fpemu *); 88 89 #endif /* !_SPARC64_FPU_FPU_EXTERN_H_ */ 90