1 /* $NetBSD: fpu_extern.h,v 1.8 2005/11/16 23:24:44 uwe 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 #if defined(_KERNEL_OPT) 40 #include "opt_sparc_arch.h" 41 #endif 42 43 struct proc; 44 #ifndef SUN4U 45 struct fpstate; 46 struct trapframe; 47 #else /* SUN4U */ 48 struct fpstate64; 49 struct trapframe64; 50 #endif /* SUN4U */ 51 union instr; 52 struct fpemu; 53 struct fpn; 54 55 /* fpu.c */ 56 #ifndef SUN4U 57 int fpu_cleanup(struct lwp *, struct fpstate *); 58 int fpu_emulate(struct lwp *, struct trapframe *, struct fpstate *); 59 #else /* SUN4U */ 60 int fpu_cleanup(struct lwp *, struct fpstate64 *); 61 int fpu_emulate(struct lwp *, struct trapframe64 *, struct fpstate64 *); 62 #endif /* SUN4U */ 63 int fpu_execute(struct fpemu *, union instr); 64 65 /* fpu_add.c */ 66 struct fpn *fpu_add(struct fpemu *); 67 68 /* fpu_compare.c */ 69 void fpu_compare(struct fpemu *, int); 70 71 /* fpu_div.c */ 72 struct fpn *fpu_div(struct fpemu *); 73 74 /* fpu_explode.c */ 75 int fpu_itof(struct fpn *, u_int); 76 #ifdef SUN4U 77 int fpu_xtof(struct fpn *, uint64_t); 78 #endif /* SUN4U */ 79 int fpu_stof(struct fpn *, u_int); 80 int fpu_dtof(struct fpn *, u_int, u_int ); 81 int fpu_qtof(struct fpn *, u_int, u_int , u_int , u_int ); 82 void fpu_explode(struct fpemu *, struct fpn *, int, int ); 83 84 /* fpu_implode.c */ 85 u_int fpu_ftoi(struct fpemu *, struct fpn *); 86 #ifdef SUN4U 87 u_int fpu_ftox(struct fpemu *, struct fpn *, u_int *); 88 #endif /* SUN4U */ 89 u_int fpu_ftos(struct fpemu *, struct fpn *); 90 u_int fpu_ftod(struct fpemu *, struct fpn *, u_int *); 91 u_int fpu_ftoq(struct fpemu *, struct fpn *, u_int *); 92 void fpu_implode(struct fpemu *, struct fpn *, int, u_int *); 93 94 /* fpu_mul.c */ 95 struct fpn *fpu_mul(struct fpemu *); 96 97 /* fpu_sqrt.c */ 98 struct fpn *fpu_sqrt(struct fpemu *); 99 100 /* fpu_subr.c */ 101 int fpu_shr(register struct fpn *, register int); 102 void fpu_norm(register struct fpn *); 103 struct fpn *fpu_newnan(register struct fpemu *); 104