18b2f7e6a1
by Eduardo Horvath and Simon Burge of Wasabi Systems.
IBM 4xx series CPU features:
- New pmap and revised trap handler.
- Support on-chip timers, PCI controller, UARTs
- Framework for on-chip ethernet and watchdog timer.
General PowerPC features:
- Add in-kernel PPC floating point emulation
- New in{,4}_cksum that is between 1.5 and 5 times faster than the
old version depending on CPU type.
General changes:
- Kernel support for generic dbsym-style symbols.
85 lines
3.2 KiB
C
85 lines
3.2 KiB
C
/* $NetBSD: fpu_extern.h,v 1.1 2001/06/13 06:01:47 simonb Exp $ */
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/*-
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* Copyright (c) 1995 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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struct proc;
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struct fpreg;
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struct trapframe;
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union instr;
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struct fpemu;
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struct fpn;
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/* fpu.c */
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int fpu_emulate(struct trapframe *, struct fpreg *);
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int fpu_execute(struct trapframe *, struct fpemu *, union instr *);
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/* fpu_add.c */
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struct fpn *fpu_add(struct fpemu *);
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/* fpu_compare.c */
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void fpu_compare(struct fpemu *, int);
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/* fpu_div.c */
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struct fpn *fpu_div(struct fpemu *);
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/* fpu_explode.c */
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int fpu_itof(struct fpn *, u_int);
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int fpu_xtof(struct fpn *, u_int64_t);
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int fpu_stof(struct fpn *, u_int);
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int fpu_dtof(struct fpn *, u_int, u_int);
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int fpu_qtof(struct fpn *, u_int, u_int , u_int , u_int);
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void fpu_explode(struct fpemu *, struct fpn *, int, int);
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/* fpu_implode.c */
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u_int fpu_ftoi(struct fpemu *, struct fpn *);
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u_int fpu_ftox(struct fpemu *, struct fpn *, u_int *);
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u_int fpu_ftos(struct fpemu *, struct fpn *);
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u_int fpu_ftod(struct fpemu *, struct fpn *, u_int *);
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u_int fpu_ftoq(struct fpemu *, struct fpn *, u_int *);
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void fpu_implode(struct fpemu *, struct fpn *, int, u_int *);
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/* fpu_mul.c */
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struct fpn *fpu_mul(struct fpemu *);
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/* fpu_sqrt.c */
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struct fpn *fpu_sqrt(struct fpemu *);
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/* fpu_subr.c */
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int fpu_shr(struct fpn *, int);
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void fpu_norm(struct fpn *);
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struct fpn *fpu_newnan(struct fpemu *);
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