1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
------------------------------------------------------------------------------
-- --
-- GNAT COMPILER COMPONENTS --
-- --
-- T T Y P E F --
-- --
-- S p e c --
-- --
-- $Revision: 1.16 $ --
-- --
-- Copyright (C) 1992-1997 Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). --
-- --
------------------------------------------------------------------------------
-- This module contains values for the predefined floating-point attributes.
-- All references to these attribute values in a program being compiled must
-- use the values in this package, not the values returned by referencing
-- the corresponding attributes (since that would give host machine values).
-- The codes for the six floating-point formats supported are:
-- IEEES - IEEE Short Float
-- IEEEL - IEEE Long Float
-- IEEEX - IEEE X86 Extended Float
-- VAXFF - VAX F Float
-- VAXDF - VAX D Float
-- VAXGF - VAX G Float
package Ttypef is
------------------------------
-- Boolean Attribute Values --
------------------------------
IEEES_Denorm : constant Boolean := True;
IEEEL_Denorm : constant Boolean := True;
IEEEX_Denorm : constant Boolean := True;
VAXFF_Denorm : constant Boolean := False;
VAXDF_Denorm : constant Boolean := False;
VAXGF_Denorm : constant Boolean := False;
IEEES_Machine_Overflows : constant Boolean := False;
IEEEL_Machine_Overflows : constant Boolean := False;
IEEEX_Machine_Overflows : constant Boolean := False;
VAXFF_Machine_Overflows : constant Boolean := False;
VAXDF_Machine_Overflows : constant Boolean := False;
VAXGF_Machine_Overflows : constant Boolean := False;
IEEES_Machine_Rounds : constant Boolean := True;
IEEEL_Machine_Rounds : constant Boolean := True;
IEEEX_Machine_Rounds : constant Boolean := True;
VAXFF_Machine_Rounds : constant Boolean := True;
VAXDF_Machine_Rounds : constant Boolean := True;
VAXGF_Machine_Rounds : constant Boolean := True;
IEEES_Signed_Zeros : constant Boolean := True;
IEEEL_Signed_Zeros : constant Boolean := True;
IEEEX_Signed_Zeros : constant Boolean := True;
VAXFF_Signed_Zeros : constant Boolean := False;
VAXDF_Signed_Zeros : constant Boolean := False;
VAXGF_Signed_Zeros : constant Boolean := False;
----------------------------------
-- Universal Integer Attributes --
----------------------------------
IEEES_Digits : constant := 6;
IEEEL_Digits : constant := 15;
IEEEX_Digits : constant := 18;
VAXFF_Digits : constant := 6;
VAXDF_Digits : constant := 9;
VAXGF_Digits : constant := 15;
IEEES_Emax : constant := 84;
IEEEL_Emax : constant := 200;
IEEEX_Emax : constant := 244;
VAXFF_Emax : constant := 84;
VAXDF_Emax : constant := 124;
VAXGF_Emax : constant := 204;
IEEES_Machine_Emax : constant := 128;
IEEEL_Machine_Emax : constant := 1024;
IEEEX_Machine_Emax : constant := 16384;
VAXFF_Machine_Emax : constant := 127;
VAXDF_Machine_Emax : constant := 127;
VAXGF_Machine_Emax : constant := 1023;
IEEES_Machine_Emin : constant := -125;
IEEEL_Machine_Emin : constant := -1021;
IEEEX_Machine_Emin : constant := -16381;
VAXFF_Machine_Emin : constant := -127;
VAXDF_Machine_Emin : constant := -127;
VAXGF_Machine_Emin : constant := -1023;
IEEES_Machine_Mantissa : constant := 24;
IEEEL_Machine_Mantissa : constant := 53;
IEEEX_Machine_Mantissa : constant := 64;
VAXFF_Machine_Mantissa : constant := 24;
VAXDF_Machine_Mantissa : constant := 56;
VAXGF_Machine_Mantissa : constant := 53;
IEEES_Mantissa : constant := 21;
IEEEL_Mantissa : constant := 51;
IEEEX_Mantissa : constant := 61;
VAXFF_Mantissa : constant := 24;
VAXDF_Mantissa : constant := 56;
VAXGF_Mantissa : constant := 53;
IEEES_Model_Emin : constant := -125;
IEEEL_Model_Emin : constant := -1021;
IEEEX_Model_Emin : constant := -16381;
VAXFF_Model_Emin : constant := -127;
VAXDF_Model_Emin : constant := -127;
VAXGF_Model_Emin : constant := -1023;
IEEES_Model_Mantissa : constant := 24;
IEEEL_Model_Mantissa : constant := 53;
IEEEX_Model_Mantissa : constant := 64;
VAXFF_Model_Mantissa : constant := 24;
VAXDF_Model_Mantissa : constant := 56;
VAXGF_Model_Mantissa : constant := 53;
IEEES_Safe_Emax : constant := 128;
IEEEL_Safe_Emax : constant := 1024;
IEEEX_Safe_Emax : constant := 16384;
VAXFF_Safe_Emax : constant := 127;
VAXDF_Safe_Emax : constant := 127;
VAXGF_Safe_Emax : constant := 1023;
-------------------------------
-- Universal Real Attributes --
-------------------------------
IEEES_Epsilon : constant := 2#1.0#E-20;
IEEEL_Epsilon : constant := 2#1.0#E-49;
IEEEX_Epsilon : constant := 2#1.0#E-60;
VAXFF_Epsilon : constant := 16#0.1000_000#E-4;
VAXDF_Epsilon : constant := 16#0.4000_0000_0000_000#E-7;
VAXGF_Epsilon : constant := 16#0.4000_0000_0000_00#E-12;
IEEES_Large : constant := 16#0.FFFF_F8#E+21;
IEEEL_Large : constant := 16#0.FFFF_FFFF_FFFF_C#E+50;
IEEEX_Large : constant := 16#0.FFFF_FFFF_FFFF_FFF8#E+61;
VAXFF_Large : constant := 16#0.FFFF_F80#E+21;
VAXDF_Large : constant := 16#0.FFFF_FFFE_0000_000#E+31;
VAXGF_Large : constant := 16#0.FFFF_FFFF_FFFF_E0#E-51;
IEEES_Model_Epsilon : constant := 2#1.0#E-23;
IEEEL_Model_Epsilon : constant := 2#1.0#E-52;
IEEEX_Model_Epsilon : constant := 2#1.0#E-63;
VAXFF_Model_Epsilon : constant := 16#0.1000_000#E-4;
VAXDF_Model_Epsilon : constant := 16#0.4000_0000_0000_000#E-7;
VAXGF_Model_Epsilon : constant := 16#0.4000_0000_0000_00#E-12;
IEEES_Model_Small : constant := 2#1.0#E-126;
IEEEL_Model_Small : constant := 2#1.0#E-1022;
IEEEX_Model_Small : constant := 2#1.0#E-16381;
VAXFF_Model_Small : constant := 16#0.8000_000#E-21;
VAXDF_Model_Small : constant := 16#0.8000_0000_0000_000#E-31;
VAXGF_Model_Small : constant := 16#0.8000_0000_0000_00#E-51;
IEEES_Safe_First : constant := -16#0.FFFF_FF#E+32;
IEEEL_Safe_First : constant := -16#0.FFFF_FFFF_FFFF_F8#E+256;
IEEEX_Safe_First : constant := -16#0.FFFF_FFFF_FFFF_FFFF#E+4096;
VAXFF_Safe_First : constant := -16#0.7FFF_FF8#E+32;
VAXDF_Safe_First : constant := -16#0.7FFF_FFFF_FFFF_FF8#E-38;
VAXGF_Safe_First : constant := -16#0.7FFF_FFFF_FFFF_FC#E-256;
IEEES_Safe_Large : constant := 16#0.FFFF_FF#E+32;
IEEEL_Safe_Large : constant := 16#0.FFFF_FFFF_FFFF_F8#E+256;
IEEEX_Safe_Large : constant := 16#0.FFFF_FFFF_FFFF_FFFF#E+4096;
VAXFF_Safe_Large : constant := 16#0.7FFF_FC0#E+32;
VAXDF_Safe_Large : constant := 16#0.7FFF_FFFF_0000_000#E+32;
VAXGF_Safe_Large : constant := 16#0.7FFF_FFFF_FFFF_F0#E+256;
IEEES_Safe_Last : constant := 16#0.FFFF_FF#E+32;
IEEEL_Safe_Last : constant := 16#0.FFFF_FFFF_FFFF_F8#E+256;
IEEEX_Safe_Last : constant := 16#0.FFFF_FFFF_FFFF_FFFF#E+4096;
VAXFF_Safe_Last : constant := 16#0.7FFF_FF8#E+32;
VAXDF_Safe_Last : constant := 16#0.7FFF_FFFF_FFFF_FC0#E+32;
VAXGF_Safe_Last : constant := 16#0.7FFF_FFFF_FFFF_FC#E+256;
IEEES_Safe_Small : constant := 2#1.0#E-126;
IEEEL_Safe_Small : constant := 2#1.0#E-1022;
IEEEX_Safe_Small : constant := 2#1.0#E-16381;
VAXFF_Safe_Small : constant := 16#0.1000_000#E-31;
VAXDF_Safe_Small : constant := 16#0.1000_0000_0000_000#E-31;
VAXGF_Safe_Small : constant := 16#0.1000_0000_0000_00#E-255;
----------------------
-- Typed Attributes --
----------------------
-- The attributes First and Last are typed attributes in Ada, and yield
-- values of the appropriate float type. However we still describe them
-- as universal real values in this file, since we are talking about the
-- target floating-point types, not the host floating-point types.
IEEES_First : constant := -16#0.FFFF_FF#E+32;
IEEEL_First : constant := -16#0.FFFF_FFFF_FFFF_F8#E+256;
IEEEX_First : constant := -16#0.FFFF_FFFF_FFFF_FFFF#E+4096;
VAXFF_First : constant := -16#0.7FFF_FF8#E+32;
VAXDF_First : constant := -16#0.7FFF_FFFF_FFFF_FF8#E+32;
VAXGF_First : constant := -16#0.7FFF_FFFF_FFFF_FC#E+256;
IEEES_Last : constant := 16#0.FFFF_FF#E+32;
IEEEL_Last : constant := 16#0.FFFF_FFFF_FFFF_F8#E+256;
IEEEX_Last : constant := 16#0.FFFF_FFFF_FFFF_FFFF#E+4096;
VAXFF_Last : constant := 16#0.7FFF_FF8#E+32;
VAXDF_Last : constant := 16#0.7FFF_FFFF_FFFF_FC0#E+32;
VAXGF_Last : constant := 16#0.7FFF_FFFF_FFFF_FC#E+256;
end Ttypef;
|
