1 /* SPDX-License-Identifier: BSD-3-Clause */
2 
3 /*============================================================================
4 
5 This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
6 Package, Release 3a, by John R. Hauser.
7 
8 Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
9 All rights reserved.
10 
11 Redistribution and use in source and binary forms, with or without
12 modification, are permitted provided that the following conditions are met:
13 
14  1. Redistributions of source code must retain the above copyright notice,
15     this list of conditions, and the following disclaimer.
16 
17  2. Redistributions in binary form must reproduce the above copyright notice,
18     this list of conditions, and the following disclaimer in the documentation
19     and/or other materials provided with the distribution.
20 
21  3. Neither the name of the University nor the names of its contributors may
22     be used to endorse or promote products derived from this software without
23     specific prior written permission.
24 
25 THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
26 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
27 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
28 DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
29 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
30 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
31 LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
32 ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
33 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
34 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
35 
36 =============================================================================*/
37 
38 #ifndef primitiveTypes_h
39 #define primitiveTypes_h 1
40 
41 #include <stdint.h>
42 
43 #ifdef SOFTFLOAT_FAST_INT64
44 
45 #ifdef LITTLEENDIAN
46 struct uint128 { uint64_t v0, v64; };
47 struct uint64_extra { uint64_t extra, v; };
48 struct uint128_extra { uint64_t extra; struct uint128 v; };
49 #else
50 struct uint128 { uint64_t v64, v0; };
51 struct uint64_extra { uint64_t v, extra; };
52 struct uint128_extra { struct uint128 v; uint64_t extra; };
53 #endif
54 
55 #endif
56 
57 /*----------------------------------------------------------------------------
58 | These macros are used to isolate the differences in word order between big-
59 | endian and little-endian platforms.
60 *----------------------------------------------------------------------------*/
61 #ifdef LITTLEENDIAN
62 #define wordIncr 1
63 #define indexWord( total, n ) (n)
64 #define indexWordHi( total ) ((total) - 1)
65 #define indexWordLo( total ) 0
66 #define indexMultiword( total, m, n ) (n)
67 #define indexMultiwordHi( total, n ) ((total) - (n))
68 #define indexMultiwordLo( total, n ) 0
69 #define indexMultiwordHiBut( total, n ) (n)
70 #define indexMultiwordLoBut( total, n ) 0
71 #define INIT_UINTM4( v3, v2, v1, v0 ) { v0, v1, v2, v3 }
72 #else
73 #define wordIncr -1
74 #define indexWord( total, n ) ((total) - 1 - (n))
75 #define indexWordHi( total ) 0
76 #define indexWordLo( total ) ((total) - 1)
77 #define indexMultiword( total, m, n ) ((total) - 1 - (m))
78 #define indexMultiwordHi( total, n ) 0
79 #define indexMultiwordLo( total, n ) ((total) - (n))
80 #define indexMultiwordHiBut( total, n ) 0
81 #define indexMultiwordLoBut( total, n ) (n)
82 #define INIT_UINTM4( v3, v2, v1, v0 ) { v3, v2, v1, v0 }
83 #endif
84 
85 #endif
86 
87