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9304f876 CJW |
1 | /* Machine settings for software floating-point emulation |
2 | of Andes NDS32 cpu for GNU compiler | |
5624e564 | 3 | Copyright (C) 2012-2015 Free Software Foundation, Inc. |
9304f876 CJW |
4 | Contributed by Andes Technology Corporation. |
5 | ||
6 | This file is part of GNU C Library. | |
7 | ||
8 | The GNU C Library is free software; you can redistribute it and/or | |
9 | modify it under the terms of the GNU Lesser General Public | |
10 | License as published by the Free Software Foundation; either | |
11 | version 2.1 of the License, or (at your option) any later version. | |
12 | ||
13 | In addition to the permissions in the GNU Lesser General Public | |
14 | License, the Free Software Foundation gives you unlimited | |
15 | permission to link the compiled version of this file into | |
16 | combinations with other programs, and to distribute those | |
17 | combinations without any restriction coming from the use of this | |
18 | file. (The Lesser General Public License restrictions do apply in | |
19 | other respects; for example, they cover modification of the file, | |
20 | and distribution when not linked into a combine executable.) | |
21 | ||
22 | The GNU C Library is distributed in the hope that it will be useful, | |
23 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
24 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
25 | Lesser General Public License for more details. | |
26 | ||
27 | You should have received a copy of the GNU Lesser General Public | |
28 | License along with the GNU C Library; if not, see | |
29 | <http://www.gnu.org/licenses/>. */ | |
30 | ||
31 | #define _FP_W_TYPE_SIZE 32 | |
32 | #define _FP_W_TYPE unsigned long | |
33 | #define _FP_WS_TYPE signed long | |
34 | #define _FP_I_TYPE long | |
35 | ||
36 | /* The type of the result of a floating point comparison. This must | |
37 | match `__libgcc_cmp_return__' in GCC for the target. */ | |
38 | typedef int __gcc_CMPtype __attribute__ ((mode (__libgcc_cmp_return__))); | |
39 | #define CMPtype __gcc_CMPtype | |
40 | ||
41 | #define _FP_MUL_MEAT_S(R,X,Y) \ | |
42 | _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm) | |
43 | #define _FP_MUL_MEAT_D(R,X,Y) \ | |
44 | _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm) | |
45 | #define _FP_MUL_MEAT_Q(R,X,Y) \ | |
46 | _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm) | |
47 | ||
48 | #define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_loop(S,R,X,Y) | |
49 | #define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y) | |
50 | #define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y) | |
51 | ||
52 | #define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1) | |
53 | #define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1 | |
54 | #define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1 | |
55 | #define _FP_NANSIGN_S 0 | |
56 | #define _FP_NANSIGN_D 0 | |
57 | #define _FP_NANSIGN_Q 0 | |
58 | ||
59 | #define _FP_KEEPNANFRACP 1 | |
60 | #define _FP_QNANNEGATEDP 0 | |
61 | ||
62 | /* Someone please check this. */ | |
63 | #define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \ | |
64 | do { \ | |
65 | if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \ | |
66 | && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \ | |
67 | { \ | |
68 | R##_s = Y##_s; \ | |
69 | _FP_FRAC_COPY_##wc(R,Y); \ | |
70 | } \ | |
71 | else \ | |
72 | { \ | |
73 | R##_s = X##_s; \ | |
74 | _FP_FRAC_COPY_##wc(R,X); \ | |
75 | } \ | |
76 | R##_c = FP_CLS_NAN; \ | |
77 | } while (0) | |
78 | ||
9acf28f1 JM |
79 | /* Not checked. */ |
80 | #define _FP_TININESS_AFTER_ROUNDING 0 | |
81 | ||
9304f876 CJW |
82 | #define __LITTLE_ENDIAN 1234 |
83 | #define __BIG_ENDIAN 4321 | |
84 | ||
85 | #if defined __big_endian__ | |
86 | # define __BYTE_ORDER __BIG_ENDIAN | |
87 | #else | |
88 | # define __BYTE_ORDER __LITTLE_ENDIAN | |
89 | #endif | |
90 | ||
91 | /* Define ALIASNAME as a strong alias for NAME. */ | |
92 | # define strong_alias(name, aliasname) _strong_alias(name, aliasname) | |
93 | # define _strong_alias(name, aliasname) \ | |
94 | extern __typeof (name) aliasname __attribute__ ((alias (#name))); |