89 lines
2.7 KiB
C
89 lines
2.7 KiB
C
/* $NetBSD: fp.h,v 1.1 2001/01/10 19:02:06 bjh21 Exp $ */
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/*-
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* Copyright (c) 1995 Mark Brinicombe.
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* Copyright (c) 1995 Brini.
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* All rights reserved.
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*
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* This code is derived from software written for Brini by Mark Brinicombe
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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 Brini.
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* RiscBSD kernel project
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*
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* fp.h
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*
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* FP info
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*
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* Created : 10/10/95
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_FP_H
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#define _MACHINE_FP_H
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/*
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* An extended precision floating point number
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*/
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typedef struct fp_extended_precision {
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u_int32_t fp_exponent;
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u_int32_t fp_mantissa_hi;
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u_int32_t fp_mantissa_lo;
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} fp_extended_precision_t;
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typedef struct fp_extended_precision fp_reg_t;
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/*
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* Information about the FPE-SP state that is stored in the pcb
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*
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* This needs to move and be hidden from userland.
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*/
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struct fpe_sp_state {
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unsigned int fp_flags;
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unsigned int fp_sr;
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unsigned int fp_cr;
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fp_reg_t fp_registers[16];
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};
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/*
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* Type for a saved FP context, if we want to translate the context to a
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* user-readable form
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*/
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typedef struct {
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u_int32_t fpsr;
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fp_extended_precision_t regs[8];
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} fp_state_t;
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#endif /* _MACHINE_FP_H_ */
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/* End of fp.h */
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