1 /* $NetBSD: fpu_extern.h,v 1.9 2008/04/28 20:23:36 martin 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 * 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 32 #if defined(_KERNEL_OPT) 33 #include "opt_sparc_arch.h" 34 #endif 35 36 struct proc; 37 #ifndef SUN4U 38 struct fpstate; 39 struct trapframe; 40 #else /* SUN4U */ 41 struct fpstate64; 42 struct trapframe64; 43 #endif /* SUN4U */ 44 union instr; 45 struct fpemu; 46 struct fpn; 47 48 /* fpu.c */ 49 #ifndef SUN4U 50 int fpu_cleanup(struct lwp *, struct fpstate *); 51 int fpu_emulate(struct lwp *, struct trapframe *, struct fpstate *); 52 #else /* SUN4U */ 53 int fpu_cleanup(struct lwp *, struct fpstate64 *); 54 int fpu_emulate(struct lwp *, struct trapframe64 *, struct fpstate64 *); 55 #endif /* SUN4U */ 56 int fpu_execute(struct fpemu *, union instr); 57 58 /* fpu_add.c */ 59 struct fpn *fpu_add(struct fpemu *); 60 61 /* fpu_compare.c */ 62 void fpu_compare(struct fpemu *, int); 63 64 /* fpu_div.c */ 65 struct fpn *fpu_div(struct fpemu *); 66 67 /* fpu_explode.c */ 68 int fpu_itof(struct fpn *, u_int); 69 #ifdef SUN4U 70 int fpu_xtof(struct fpn *, uint64_t); 71 #endif /* SUN4U */ 72 int fpu_stof(struct fpn *, u_int); 73 int fpu_dtof(struct fpn *, u_int, u_int ); 74 int fpu_qtof(struct fpn *, u_int, u_int , u_int , u_int ); 75 void fpu_explode(struct fpemu *, struct fpn *, int, int ); 76 77 /* fpu_implode.c */ 78 u_int fpu_ftoi(struct fpemu *, struct fpn *); 79 #ifdef SUN4U 80 u_int fpu_ftox(struct fpemu *, struct fpn *, u_int *); 81 #endif /* SUN4U */ 82 u_int fpu_ftos(struct fpemu *, struct fpn *); 83 u_int fpu_ftod(struct fpemu *, struct fpn *, u_int *); 84 u_int fpu_ftoq(struct fpemu *, struct fpn *, u_int *); 85 void fpu_implode(struct fpemu *, struct fpn *, int, u_int *); 86 87 /* fpu_mul.c */ 88 struct fpn *fpu_mul(struct fpemu *); 89 90 /* fpu_sqrt.c */ 91 struct fpn *fpu_sqrt(struct fpemu *); 92 93 /* fpu_subr.c */ 94 int fpu_shr(register struct fpn *, register int); 95 void fpu_norm(register struct fpn *); 96 struct fpn *fpu_newnan(register struct fpemu *); 97