Annotation of sys/arch/arm/include/fp.h, Revision 1.1.1.1
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 */
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