Annotation of sys/arch/arm/include/fp.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: fp.h,v 1.1 2004/02/01 05:09:49 drahn Exp $ */
! 2: /* $NetBSD: fp.h,v 1.1 2001/01/10 19:02:06 bjh21 Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1995 Mark Brinicombe.
! 6: * Copyright (c) 1995 Brini.
! 7: * All rights reserved.
! 8: *
! 9: * This code is derived from software written for Brini by Mark Brinicombe
! 10: *
! 11: * Redistribution and use in source and binary forms, with or without
! 12: * modification, are permitted provided that the following conditions
! 13: * are met:
! 14: * 1. Redistributions of source code must retain the above copyright
! 15: * notice, this list of conditions and the following disclaimer.
! 16: * 2. Redistributions in binary form must reproduce the above copyright
! 17: * notice, this list of conditions and the following disclaimer in the
! 18: * documentation and/or other materials provided with the distribution.
! 19: * 3. All advertising materials mentioning features or use of this software
! 20: * must display the following acknowledgement:
! 21: * This product includes software developed by Brini.
! 22: * 4. The name of the company nor the name of the author may be used to
! 23: * endorse or promote products derived from this software without specific
! 24: * prior written permission.
! 25: *
! 26: * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
! 27: * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
! 28: * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
! 29: * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
! 30: * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
! 31: * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
! 32: * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 33: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 34: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 35: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 36: * SUCH DAMAGE.
! 37: *
! 38: * RiscBSD kernel project
! 39: *
! 40: * fp.h
! 41: *
! 42: * FP info
! 43: *
! 44: * Created : 10/10/95
! 45: */
! 46:
! 47: #ifndef __ARM32_FP_H
! 48: #define __ARM32_FP_H
! 49:
! 50: /*
! 51: * An extended precision floating point number
! 52: */
! 53:
! 54: typedef struct fp_extended_precision {
! 55: u_int32_t fp_exponent;
! 56: u_int32_t fp_mantissa_hi;
! 57: u_int32_t fp_mantissa_lo;
! 58: } fp_extended_precision_t;
! 59:
! 60: typedef struct fp_extended_precision fp_reg_t;
! 61:
! 62: /*
! 63: * Information about the FPE-SP state that is stored in the pcb
! 64: *
! 65: * This needs to move and be hidden from userland.
! 66: */
! 67:
! 68: struct fpe_sp_state {
! 69: unsigned int fp_flags;
! 70: unsigned int fp_sr;
! 71: unsigned int fp_cr;
! 72: fp_reg_t fp_registers[16];
! 73: };
! 74:
! 75: /*
! 76: * Type for a saved FP context, if we want to translate the context to a
! 77: * user-readable form
! 78: */
! 79:
! 80: typedef struct {
! 81: u_int32_t fpsr;
! 82: fp_extended_precision_t regs[8];
! 83: } fp_state_t;
! 84:
! 85: #endif
! 86:
! 87: /* End of fp.h */
CVSweb