xref: /onnv-gate/usr/src/uts/common/sys/ieeefp.h (revision 0:68f95e015346)
1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24*0Sstevel@tonic-gate  * Use is subject to license terms.
25*0Sstevel@tonic-gate  */
26*0Sstevel@tonic-gate 
27*0Sstevel@tonic-gate #ifndef _SYS_IEEEFP_H
28*0Sstevel@tonic-gate #define	_SYS_IEEEFP_H
29*0Sstevel@tonic-gate 
30*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"	/* SunOS4.0 1.6	*/
31*0Sstevel@tonic-gate 
32*0Sstevel@tonic-gate #ifdef	__cplusplus
33*0Sstevel@tonic-gate extern "C" {
34*0Sstevel@tonic-gate #endif
35*0Sstevel@tonic-gate 
36*0Sstevel@tonic-gate /*
37*0Sstevel@tonic-gate  * Sun types for IEEE floating point.
38*0Sstevel@tonic-gate  */
39*0Sstevel@tonic-gate 
40*0Sstevel@tonic-gate #if defined(__sparc)
41*0Sstevel@tonic-gate 
42*0Sstevel@tonic-gate enum fp_direction_type {	/* rounding direction */
43*0Sstevel@tonic-gate 	fp_nearest	= 0,
44*0Sstevel@tonic-gate 	fp_tozero	= 1,
45*0Sstevel@tonic-gate 	fp_positive	= 2,
46*0Sstevel@tonic-gate 	fp_negative	= 3
47*0Sstevel@tonic-gate };
48*0Sstevel@tonic-gate 
49*0Sstevel@tonic-gate enum fp_precision_type {	/* extended rounding precision */
50*0Sstevel@tonic-gate 	fp_extended	= 0,
51*0Sstevel@tonic-gate 	fp_single	= 1,
52*0Sstevel@tonic-gate 	fp_double	= 2,
53*0Sstevel@tonic-gate 	fp_precision_3	= 3
54*0Sstevel@tonic-gate };
55*0Sstevel@tonic-gate 
56*0Sstevel@tonic-gate enum fp_exception_type {	/* exceptions according to bit number */
57*0Sstevel@tonic-gate 	fp_inexact	= 0,
58*0Sstevel@tonic-gate 	fp_division	= 1,
59*0Sstevel@tonic-gate 	fp_underflow	= 2,
60*0Sstevel@tonic-gate 	fp_overflow	= 3,
61*0Sstevel@tonic-gate 	fp_invalid	= 4
62*0Sstevel@tonic-gate };
63*0Sstevel@tonic-gate 
64*0Sstevel@tonic-gate enum fp_trap_enable_type {	/* trap enable bits according to bit number */
65*0Sstevel@tonic-gate 	fp_trap_inexact	= 0,
66*0Sstevel@tonic-gate 	fp_trap_division	= 1,
67*0Sstevel@tonic-gate 	fp_trap_underflow	= 2,
68*0Sstevel@tonic-gate 	fp_trap_overflow	= 3,
69*0Sstevel@tonic-gate 	fp_trap_invalid	= 4
70*0Sstevel@tonic-gate };
71*0Sstevel@tonic-gate 
72*0Sstevel@tonic-gate #elif defined(__i386) || defined(__amd64)
73*0Sstevel@tonic-gate 
74*0Sstevel@tonic-gate enum fp_direction_type {	/* rounding direction */
75*0Sstevel@tonic-gate 	fp_nearest	= 0,
76*0Sstevel@tonic-gate 	fp_negative	= 1,
77*0Sstevel@tonic-gate 	fp_positive	= 2,
78*0Sstevel@tonic-gate 	fp_tozero	= 3
79*0Sstevel@tonic-gate };
80*0Sstevel@tonic-gate 
81*0Sstevel@tonic-gate enum fp_precision_type {	/* extended rounding precision */
82*0Sstevel@tonic-gate 	fp_single	= 0,
83*0Sstevel@tonic-gate 	fp_precision_3	= 1,
84*0Sstevel@tonic-gate 	fp_double	= 2,
85*0Sstevel@tonic-gate 	fp_extended	= 3
86*0Sstevel@tonic-gate };
87*0Sstevel@tonic-gate 
88*0Sstevel@tonic-gate enum fp_exception_type {	/* exceptions according to bit number */
89*0Sstevel@tonic-gate 	fp_invalid	= 0,
90*0Sstevel@tonic-gate 	fp_denormalized	= 1,
91*0Sstevel@tonic-gate 	fp_division	= 2,
92*0Sstevel@tonic-gate 	fp_overflow	= 3,
93*0Sstevel@tonic-gate 	fp_underflow	= 4,
94*0Sstevel@tonic-gate 	fp_inexact	= 5
95*0Sstevel@tonic-gate };
96*0Sstevel@tonic-gate 
97*0Sstevel@tonic-gate enum fp_trap_enable_type {	/* trap enable bits according to bit number */
98*0Sstevel@tonic-gate 	fp_trap_invalid	= 0,
99*0Sstevel@tonic-gate 	fp_trap_denormalized	= 1,
100*0Sstevel@tonic-gate 	fp_trap_division	= 2,
101*0Sstevel@tonic-gate 	fp_trap_overflow	= 3,
102*0Sstevel@tonic-gate 	fp_trap_underflow	= 4,
103*0Sstevel@tonic-gate 	fp_trap_inexact	= 5
104*0Sstevel@tonic-gate };
105*0Sstevel@tonic-gate 
106*0Sstevel@tonic-gate #endif	/* __i386 || __ia64 || __amd64 */
107*0Sstevel@tonic-gate 
108*0Sstevel@tonic-gate enum fp_class_type {		/* floating-point classes */
109*0Sstevel@tonic-gate 	fp_zero		= 0,
110*0Sstevel@tonic-gate 	fp_subnormal	= 1,
111*0Sstevel@tonic-gate 	fp_normal	= 2,
112*0Sstevel@tonic-gate 	fp_infinity   	= 3,
113*0Sstevel@tonic-gate 	fp_quiet	= 4,
114*0Sstevel@tonic-gate 	fp_signaling	= 5
115*0Sstevel@tonic-gate };
116*0Sstevel@tonic-gate 
117*0Sstevel@tonic-gate #ifdef	__cplusplus
118*0Sstevel@tonic-gate }
119*0Sstevel@tonic-gate #endif
120*0Sstevel@tonic-gate 
121*0Sstevel@tonic-gate #endif	/* _SYS_IEEEFP_H */
122