1/*-
2 * Copyright (c) 1990 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * William Jolitz.
7 *
8 * Redistribution and use in source and binary forms, with or without

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25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * from: @(#)npx.h 5.3 (Berkeley) 1/18/91
33 * $FreeBSD: head/sys/i386/include/npx.h 189418 2009-03-05 18:32:43Z jhb $
34 */
35
36/*
37 * 287/387 NPX Coprocessor Data Structures and Constants
38 * W. Jolitz 1/90
39 */
40
41#ifndef _MACHINE_NPX_H_

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138
139#ifdef _KERNEL
140
141#define IO_NPX 0x0F0 /* Numeric Coprocessor */
142#define IO_NPXSIZE 16 /* 80387/80487 NPX registers */
143
144#define IRQ_NPX 13
145
146/* full reset on some systems, NOP on others */
147#define npx_full_reset() outb(IO_NPX + 1, 0)
148
149int npxdna(void);
150void npxdrop(void);
151void npxexit(struct thread *td);
152int npxformat(void);
153int npxgetregs(struct thread *td, union savefpu *addr);
154void npxinit(void);
155void npxsave(union savefpu *addr);
156void npxsetregs(struct thread *td, union savefpu *addr);
157int npxtrap(void);
158
159#endif
160
161#endif /* !_MACHINE_NPX_H_ */