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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 */