xref: /haiku/src/system/libroot/os/arch/sparc/fsr.h (revision 803a4704e82749bce36c05ee56792dad62576144)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright 2001 by Thomas Moestl <tmm@FreeBSD.org>.  All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
19  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
24  * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD: head/sys/sparc64/include/fsr.h 326262 2017-11-27 15:10:39Z pfg $
27  */
28 
29 #ifndef	_MACHINE_FSR_H_
30 #define	_MACHINE_FSR_H_
31 
32 #define	FPRS_DL		(1 << 0)
33 #define	FPRS_DU		(1 << 1)
34 #define	FPRS_FEF	(1 << 2)
35 
36 #define	VIS_BLOCKSIZE	64
37 
38 #ifndef LOCORE
39 
40 #define	FSR_EXC_BITS	5
41 #define	FSR_EXC_MASK	((1UL << FSR_EXC_BITS) - 1)
42 #define	FSR_CEXC_SHIFT	0
43 #define	FSR_CEXC_MASK	(FSR_EXC_MASK << FSR_CEXC_SHIFT)
44 #define	FSR_CEXC(b)	((unsigned long)(b) << FSR_CEXC_SHIFT)
45 #define	FSR_GET_CEXC(x)	(((x) & FSR_CEXC_MASK) >> FSR_CEXC_SHIFT)
46 #define	FSR_AEXC_SHIFT	5
47 #define	FSR_AEXC_MASK	(FSR_EXC_MASK << FSR_AEXC_SHIFT)
48 #define	FSR_AEXC(b)	((unsigned long)(b) << FSR_AEXC_SHIFT)
49 #define	FSR_GET_AEXC(x)	(((x) & FSR_AEXC_MASK) >> FSR_AEXC_SHIFT)
50 #define	FSR_QNE		(1UL << 13)
51 #define	FSR_NS		(1UL << 22)
52 #define	FSR_TEM_SHIFT	23
53 #define	FSR_TEM_MASK	(FSR_EXC_MASK << FSR_TEM_SHIFT)
54 #define	FSR_TEM(b)	((unsigned long)(b) << FSR_TEM_SHIFT)
55 #define	FSR_GET_TEM(x)	(((x) & FSR_TEM_MASK) >> FSR_TEM_SHIFT)
56 #define	FSR_FCC0_SHIFT	10
57 #define	FSR_FCC0_BITS	2
58 #define	FSR_FCC0_MASK	(((1UL << FSR_FCC0_BITS) - 1) << FSR_FCC0_SHIFT)
59 #define	FSR_FCC0(x)	((unsigned long)(x) << FSR_FCC0_SHIFT)
60 #define	FSR_GET_FCC0(x)	(((x) & FSR_FCC0_MASK) >> FSR_FCC0_SHIFT)
61 #define	FSR_FTT_SHIFT	14
62 #define	FSR_FTT_BITS	3
63 #define	FSR_FTT_MASK	(((1UL << FSR_FTT_BITS) - 1) << FSR_FTT_SHIFT)
64 #define	FSR_FTT(x)	((unsigned long)(x) << FSR_FTT_SHIFT)
65 #define	FSR_GET_FTT(x)	(((x) & FSR_FTT_MASK) >> FSR_FTT_SHIFT)
66 #define	FSR_VER_SHIFT	17
67 #define	FSR_GET_VER(x)	(((x) >> FSR_VER_SHIFT) & 7)
68 #define	FSR_RD_SHIFT	30
69 #define	FSR_RD_BITS	2
70 #define	FSR_RD_MASK	(((1UL << FSR_RD_BITS) - 1) << FSR_RD_SHIFT)
71 #define	FSR_RD(x)	((unsigned long)(x) << FSR_RD_SHIFT)
72 #define	FSR_GET_RD(x)	(((x) & FSR_RD_MASK) >> FSR_RD_SHIFT)
73 #define	FSR_FCC1_SHIFT	32
74 #define	FSR_FCC1_BITS	2
75 #define	FSR_FCC1_MASK	(((1UL << FSR_FCC1_BITS) - 1) << FSR_FCC1_SHIFT)
76 #define	FSR_FCC1(x)	((unsigned long)(x) << FSR_FCC1_SHIFT)
77 #define	FSR_GET_FCC1(x)	(((x) & FSR_FCC1_MASK) >> FSR_FCC1_SHIFT)
78 #define	FSR_FCC2_SHIFT	34
79 #define	FSR_FCC2_BITS	2
80 #define	FSR_FCC2_MASK	(((1UL << FSR_FCC2_BITS) - 1) << FSR_FCC2_SHIFT)
81 #define	FSR_FCC2(x)	((unsigned long)(x) << FSR_FCC2_SHIFT)
82 #define	FSR_GET_FCC2(x)	(((x) & FSR_FCC2_MASK) >> FSR_FCC2_SHIFT)
83 #define	FSR_FCC3_SHIFT	36
84 #define	FSR_FCC3_BITS	2
85 #define	FSR_FCC3_MASK	(((1UL << FSR_FCC3_BITS) - 1) << FSR_FCC3_SHIFT)
86 #define	FSR_FCC3(x)	((unsigned long)(x) << FSR_FCC3_SHIFT)
87 #define	FSR_GET_FCC3(x)	(((x) & FSR_FCC3_MASK) >> FSR_FCC3_SHIFT)
88 
89 /* CEXC/AEXC/TEM exception values */
90 #define	FSR_NX		(1 << 0)
91 #define	FSR_DZ		(1 << 1)
92 #define	FSR_UF		(1 << 2)
93 #define	FSR_OF		(1 << 3)
94 #define	FSR_NV		(1 << 4)
95 /* FTT values. */
96 #define	FSR_FTT_NONE	0
97 #define	FSR_FTT_IEEE	1
98 #define	FSR_FTT_UNFIN	2
99 #define	FSR_FTT_UNIMP	3
100 #define	FSR_FTT_SEQERR	4
101 #define	FSR_FTT_HWERR	5
102 #define	FSR_FTT_INVREG	6
103 /* RD values */
104 #define	FSR_RD_N	0		/* nearest */
105 #define	FSR_RD_Z	1		/* zero */
106 #define	FSR_RD_PINF	2		/* +infinity */
107 #define	FSR_RD_NINF	3		/* -infinity */
108 /* condition codes */
109 #define	FSR_CC_EQ	0	/* a = b */
110 #define	FSR_CC_LT	1	/* a < b */
111 #define	FSR_CC_GT	2	/* a > b */
112 #define	FSR_CC_UO	3	/* unordered */
113 
114 #endif /* !LOCORE */
115 
116 #endif /* !_MACHINE_FSR_H_ */
117