1 /* $NetBSD: fpu_extern.h,v 1.5 2012/07/23 04:13:06 matt 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 #ifndef _POWERPC_FPU_FPU_EXTERN_H_ 33 #define _POWERPC_FPU_FPU_EXTERN_H_ 34 35 #include <sys/signal.h> 36 #include <sys/siginfo.h> 37 38 struct proc; 39 struct fpreg; 40 struct trapframe; 41 union instr; 42 struct fpemu; 43 struct fpn; 44 45 /* fpu.c */ 46 bool fpu_emulate(struct trapframe *, struct fpreg *, ksiginfo_t *); 47 int fpu_execute(struct trapframe *, struct fpemu *, union instr *); 48 49 /* fpu_add.c */ 50 struct fpn *fpu_add(struct fpemu *); 51 52 /* fpu_compare.c */ 53 void fpu_compare(struct fpemu *, int); 54 55 /* fpu_div.c */ 56 struct fpn *fpu_div(struct fpemu *); 57 58 /* fpu_explode.c */ 59 int fpu_itof(struct fpn *, u_int); 60 int fpu_xtof(struct fpn *, u_int64_t); 61 int fpu_stof(struct fpn *, u_int); 62 int fpu_dtof(struct fpn *, u_int, u_int); 63 void fpu_explode(struct fpemu *, struct fpn *, int, int); 64 65 /* fpu_implode.c */ 66 u_int fpu_ftoi(struct fpemu *, struct fpn *); 67 u_int fpu_ftox(struct fpemu *, struct fpn *, u_int *); 68 u_int fpu_ftos(struct fpemu *, struct fpn *); 69 u_int fpu_ftod(struct fpemu *, struct fpn *, u_int *); 70 void fpu_implode(struct fpemu *, struct fpn *, int, u_int *); 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 int fpu_shr(struct fpn *, int); 80 void fpu_norm(struct fpn *); 81 struct fpn *fpu_newnan(struct fpemu *); 82 83 #endif /* _POWERPC_FPU_FPU_EXTERN_H_ */ 84