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d876f532 UD |
1 | /* Software floating-point emulation. |
2 | Definitions for IEEE Quad Precision. | |
f775c276 | 3 | Copyright (C) 1997,1998,1999,2006,2007,2012 Free Software Foundation, Inc. |
d876f532 UD |
4 | This file is part of the GNU C Library. |
5 | Contributed by Richard Henderson (rth@cygnus.com), | |
6 | Jakub Jelinek (jj@ultra.linux.cz), | |
7 | David S. Miller (davem@redhat.com) and | |
8 | Peter Maydell (pmaydell@chiark.greenend.org.uk). | |
9 | ||
10 | The GNU C Library is free software; you can redistribute it and/or | |
41bdb6e2 AJ |
11 | modify it under the terms of the GNU Lesser General Public |
12 | License as published by the Free Software Foundation; either | |
13 | version 2.1 of the License, or (at your option) any later version. | |
d876f532 | 14 | |
638a783c RM |
15 | In addition to the permissions in the GNU Lesser General Public |
16 | License, the Free Software Foundation gives you unlimited | |
17 | permission to link the compiled version of this file into | |
18 | combinations with other programs, and to distribute those | |
19 | combinations without any restriction coming from the use of this | |
20 | file. (The Lesser General Public License restrictions do apply in | |
21 | other respects; for example, they cover modification of the file, | |
22 | and distribution when not linked into a combine executable.) | |
23 | ||
d876f532 UD |
24 | The GNU C Library is distributed in the hope that it will be useful, |
25 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 27 | Lesser General Public License for more details. |
d876f532 | 28 | |
41bdb6e2 | 29 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
30 | License along with the GNU C Library; if not, see |
31 | <http://www.gnu.org/licenses/>. */ | |
d876f532 UD |
32 | |
33 | #if _FP_W_TYPE_SIZE < 32 | |
34 | #error "Here's a nickel, kid. Go buy yourself a real computer." | |
35 | #endif | |
36 | ||
37 | #if _FP_W_TYPE_SIZE < 64 | |
38 | #define _FP_FRACTBITS_Q (4*_FP_W_TYPE_SIZE) | |
39 | #else | |
40 | #define _FP_FRACTBITS_Q (2*_FP_W_TYPE_SIZE) | |
41 | #endif | |
42 | ||
43 | #define _FP_FRACBITS_Q 113 | |
44 | #define _FP_FRACXBITS_Q (_FP_FRACTBITS_Q - _FP_FRACBITS_Q) | |
45 | #define _FP_WFRACBITS_Q (_FP_WORKBITS + _FP_FRACBITS_Q) | |
46 | #define _FP_WFRACXBITS_Q (_FP_FRACTBITS_Q - _FP_WFRACBITS_Q) | |
47 | #define _FP_EXPBITS_Q 15 | |
48 | #define _FP_EXPBIAS_Q 16383 | |
49 | #define _FP_EXPMAX_Q 32767 | |
50 | ||
51 | #define _FP_QNANBIT_Q \ | |
52 | ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-2) % _FP_W_TYPE_SIZE) | |
fe0b1e85 RM |
53 | #define _FP_QNANBIT_SH_Q \ |
54 | ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-2+_FP_WORKBITS) % _FP_W_TYPE_SIZE) | |
d876f532 UD |
55 | #define _FP_IMPLBIT_Q \ |
56 | ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-1) % _FP_W_TYPE_SIZE) | |
fe0b1e85 RM |
57 | #define _FP_IMPLBIT_SH_Q \ |
58 | ((_FP_W_TYPE)1 << (_FP_FRACBITS_Q-1+_FP_WORKBITS) % _FP_W_TYPE_SIZE) | |
d876f532 UD |
59 | #define _FP_OVERFLOW_Q \ |
60 | ((_FP_W_TYPE)1 << (_FP_WFRACBITS_Q % _FP_W_TYPE_SIZE)) | |
61 | ||
fe0b1e85 RM |
62 | typedef float TFtype __attribute__((mode(TF))); |
63 | ||
d876f532 UD |
64 | #if _FP_W_TYPE_SIZE < 64 |
65 | ||
66 | union _FP_UNION_Q | |
67 | { | |
fe0b1e85 | 68 | TFtype flt; |
f775c276 | 69 | struct _FP_STRUCT_LAYOUT |
d876f532 UD |
70 | { |
71 | #if __BYTE_ORDER == __BIG_ENDIAN | |
72 | unsigned sign : 1; | |
73 | unsigned exp : _FP_EXPBITS_Q; | |
74 | unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3); | |
75 | unsigned long frac2 : _FP_W_TYPE_SIZE; | |
76 | unsigned long frac1 : _FP_W_TYPE_SIZE; | |
77 | unsigned long frac0 : _FP_W_TYPE_SIZE; | |
78 | #else | |
79 | unsigned long frac0 : _FP_W_TYPE_SIZE; | |
80 | unsigned long frac1 : _FP_W_TYPE_SIZE; | |
81 | unsigned long frac2 : _FP_W_TYPE_SIZE; | |
82 | unsigned long frac3 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0)-(_FP_W_TYPE_SIZE * 3); | |
83 | unsigned exp : _FP_EXPBITS_Q; | |
84 | unsigned sign : 1; | |
85 | #endif /* not bigendian */ | |
86 | } bits __attribute__((packed)); | |
87 | }; | |
88 | ||
89 | ||
90 | #define FP_DECL_Q(X) _FP_DECL(4,X) | |
91 | #define FP_UNPACK_RAW_Q(X,val) _FP_UNPACK_RAW_4(Q,X,val) | |
92 | #define FP_UNPACK_RAW_QP(X,val) _FP_UNPACK_RAW_4_P(Q,X,val) | |
93 | #define FP_PACK_RAW_Q(val,X) _FP_PACK_RAW_4(Q,val,X) | |
94 | #define FP_PACK_RAW_QP(val,X) \ | |
95 | do { \ | |
96 | if (!FP_INHIBIT_RESULTS) \ | |
97 | _FP_PACK_RAW_4_P(Q,val,X); \ | |
98 | } while (0) | |
99 | ||
100 | #define FP_UNPACK_Q(X,val) \ | |
101 | do { \ | |
102 | _FP_UNPACK_RAW_4(Q,X,val); \ | |
103 | _FP_UNPACK_CANONICAL(Q,4,X); \ | |
104 | } while (0) | |
105 | ||
106 | #define FP_UNPACK_QP(X,val) \ | |
107 | do { \ | |
108 | _FP_UNPACK_RAW_4_P(Q,X,val); \ | |
109 | _FP_UNPACK_CANONICAL(Q,4,X); \ | |
110 | } while (0) | |
111 | ||
fe0b1e85 RM |
112 | #define FP_UNPACK_SEMIRAW_Q(X,val) \ |
113 | do { \ | |
114 | _FP_UNPACK_RAW_4(Q,X,val); \ | |
115 | _FP_UNPACK_SEMIRAW(Q,4,X); \ | |
116 | } while (0) | |
117 | ||
118 | #define FP_UNPACK_SEMIRAW_QP(X,val) \ | |
119 | do { \ | |
120 | _FP_UNPACK_RAW_4_P(Q,X,val); \ | |
121 | _FP_UNPACK_SEMIRAW(Q,4,X); \ | |
122 | } while (0) | |
123 | ||
d876f532 UD |
124 | #define FP_PACK_Q(val,X) \ |
125 | do { \ | |
126 | _FP_PACK_CANONICAL(Q,4,X); \ | |
127 | _FP_PACK_RAW_4(Q,val,X); \ | |
128 | } while (0) | |
129 | ||
130 | #define FP_PACK_QP(val,X) \ | |
131 | do { \ | |
132 | _FP_PACK_CANONICAL(Q,4,X); \ | |
133 | if (!FP_INHIBIT_RESULTS) \ | |
134 | _FP_PACK_RAW_4_P(Q,val,X); \ | |
135 | } while (0) | |
136 | ||
fe0b1e85 RM |
137 | #define FP_PACK_SEMIRAW_Q(val,X) \ |
138 | do { \ | |
139 | _FP_PACK_SEMIRAW(Q,4,X); \ | |
140 | _FP_PACK_RAW_4(Q,val,X); \ | |
141 | } while (0) | |
142 | ||
143 | #define FP_PACK_SEMIRAW_QP(val,X) \ | |
144 | do { \ | |
145 | _FP_PACK_SEMIRAW(Q,4,X); \ | |
146 | if (!FP_INHIBIT_RESULTS) \ | |
147 | _FP_PACK_RAW_4_P(Q,val,X); \ | |
148 | } while (0) | |
149 | ||
d876f532 UD |
150 | #define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN(Q,4,X) |
151 | #define FP_NEG_Q(R,X) _FP_NEG(Q,4,R,X) | |
152 | #define FP_ADD_Q(R,X,Y) _FP_ADD(Q,4,R,X,Y) | |
153 | #define FP_SUB_Q(R,X,Y) _FP_SUB(Q,4,R,X,Y) | |
154 | #define FP_MUL_Q(R,X,Y) _FP_MUL(Q,4,R,X,Y) | |
155 | #define FP_DIV_Q(R,X,Y) _FP_DIV(Q,4,R,X,Y) | |
156 | #define FP_SQRT_Q(R,X) _FP_SQRT(Q,4,R,X) | |
157 | #define _FP_SQRT_MEAT_Q(R,S,T,X,Q) _FP_SQRT_MEAT_4(R,S,T,X,Q) | |
158 | ||
159 | #define FP_CMP_Q(r,X,Y,un) _FP_CMP(Q,4,r,X,Y,un) | |
160 | #define FP_CMP_EQ_Q(r,X,Y) _FP_CMP_EQ(Q,4,r,X,Y) | |
e7b8c7bc | 161 | #define FP_CMP_UNORD_Q(r,X,Y) _FP_CMP_UNORD(Q,4,r,X,Y) |
d876f532 UD |
162 | |
163 | #define FP_TO_INT_Q(r,X,rsz,rsg) _FP_TO_INT(Q,4,r,X,rsz,rsg) | |
164 | #define FP_FROM_INT_Q(X,r,rs,rt) _FP_FROM_INT(Q,4,X,r,rs,rt) | |
165 | ||
166 | #define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_4(X) | |
167 | #define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_4(X) | |
168 | ||
169 | #else /* not _FP_W_TYPE_SIZE < 64 */ | |
170 | union _FP_UNION_Q | |
171 | { | |
fe0b1e85 | 172 | TFtype flt /* __attribute__((mode(TF))) */ ; |
f775c276 | 173 | struct _FP_STRUCT_LAYOUT { |
a598e3fc RH |
174 | _FP_W_TYPE a, b; |
175 | } longs; | |
f775c276 | 176 | struct _FP_STRUCT_LAYOUT { |
d876f532 | 177 | #if __BYTE_ORDER == __BIG_ENDIAN |
06029c20 JJ |
178 | unsigned sign : 1; |
179 | unsigned exp : _FP_EXPBITS_Q; | |
180 | _FP_W_TYPE frac1 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0) - _FP_W_TYPE_SIZE; | |
181 | _FP_W_TYPE frac0 : _FP_W_TYPE_SIZE; | |
d876f532 | 182 | #else |
06029c20 JJ |
183 | _FP_W_TYPE frac0 : _FP_W_TYPE_SIZE; |
184 | _FP_W_TYPE frac1 : _FP_FRACBITS_Q - (_FP_IMPLBIT_Q != 0) - _FP_W_TYPE_SIZE; | |
185 | unsigned exp : _FP_EXPBITS_Q; | |
186 | unsigned sign : 1; | |
d876f532 UD |
187 | #endif |
188 | } bits; | |
189 | }; | |
190 | ||
191 | #define FP_DECL_Q(X) _FP_DECL(2,X) | |
192 | #define FP_UNPACK_RAW_Q(X,val) _FP_UNPACK_RAW_2(Q,X,val) | |
193 | #define FP_UNPACK_RAW_QP(X,val) _FP_UNPACK_RAW_2_P(Q,X,val) | |
194 | #define FP_PACK_RAW_Q(val,X) _FP_PACK_RAW_2(Q,val,X) | |
195 | #define FP_PACK_RAW_QP(val,X) \ | |
196 | do { \ | |
197 | if (!FP_INHIBIT_RESULTS) \ | |
198 | _FP_PACK_RAW_2_P(Q,val,X); \ | |
199 | } while (0) | |
200 | ||
201 | #define FP_UNPACK_Q(X,val) \ | |
202 | do { \ | |
203 | _FP_UNPACK_RAW_2(Q,X,val); \ | |
204 | _FP_UNPACK_CANONICAL(Q,2,X); \ | |
205 | } while (0) | |
206 | ||
207 | #define FP_UNPACK_QP(X,val) \ | |
208 | do { \ | |
209 | _FP_UNPACK_RAW_2_P(Q,X,val); \ | |
210 | _FP_UNPACK_CANONICAL(Q,2,X); \ | |
211 | } while (0) | |
212 | ||
fe0b1e85 RM |
213 | #define FP_UNPACK_SEMIRAW_Q(X,val) \ |
214 | do { \ | |
215 | _FP_UNPACK_RAW_2(Q,X,val); \ | |
216 | _FP_UNPACK_SEMIRAW(Q,2,X); \ | |
217 | } while (0) | |
218 | ||
219 | #define FP_UNPACK_SEMIRAW_QP(X,val) \ | |
220 | do { \ | |
221 | _FP_UNPACK_RAW_2_P(Q,X,val); \ | |
222 | _FP_UNPACK_SEMIRAW(Q,2,X); \ | |
223 | } while (0) | |
224 | ||
d876f532 UD |
225 | #define FP_PACK_Q(val,X) \ |
226 | do { \ | |
227 | _FP_PACK_CANONICAL(Q,2,X); \ | |
228 | _FP_PACK_RAW_2(Q,val,X); \ | |
229 | } while (0) | |
230 | ||
231 | #define FP_PACK_QP(val,X) \ | |
232 | do { \ | |
233 | _FP_PACK_CANONICAL(Q,2,X); \ | |
234 | if (!FP_INHIBIT_RESULTS) \ | |
235 | _FP_PACK_RAW_2_P(Q,val,X); \ | |
236 | } while (0) | |
237 | ||
fe0b1e85 RM |
238 | #define FP_PACK_SEMIRAW_Q(val,X) \ |
239 | do { \ | |
240 | _FP_PACK_SEMIRAW(Q,2,X); \ | |
241 | _FP_PACK_RAW_2(Q,val,X); \ | |
242 | } while (0) | |
243 | ||
244 | #define FP_PACK_SEMIRAW_QP(val,X) \ | |
245 | do { \ | |
246 | _FP_PACK_SEMIRAW(Q,2,X); \ | |
247 | if (!FP_INHIBIT_RESULTS) \ | |
248 | _FP_PACK_RAW_2_P(Q,val,X); \ | |
249 | } while (0) | |
250 | ||
d876f532 UD |
251 | #define FP_ISSIGNAN_Q(X) _FP_ISSIGNAN(Q,2,X) |
252 | #define FP_NEG_Q(R,X) _FP_NEG(Q,2,R,X) | |
253 | #define FP_ADD_Q(R,X,Y) _FP_ADD(Q,2,R,X,Y) | |
254 | #define FP_SUB_Q(R,X,Y) _FP_SUB(Q,2,R,X,Y) | |
255 | #define FP_MUL_Q(R,X,Y) _FP_MUL(Q,2,R,X,Y) | |
256 | #define FP_DIV_Q(R,X,Y) _FP_DIV(Q,2,R,X,Y) | |
257 | #define FP_SQRT_Q(R,X) _FP_SQRT(Q,2,R,X) | |
258 | #define _FP_SQRT_MEAT_Q(R,S,T,X,Q) _FP_SQRT_MEAT_2(R,S,T,X,Q) | |
259 | ||
260 | #define FP_CMP_Q(r,X,Y,un) _FP_CMP(Q,2,r,X,Y,un) | |
261 | #define FP_CMP_EQ_Q(r,X,Y) _FP_CMP_EQ(Q,2,r,X,Y) | |
1e832e37 | 262 | #define FP_CMP_UNORD_Q(r,X,Y) _FP_CMP_UNORD(Q,2,r,X,Y) |
d876f532 UD |
263 | |
264 | #define FP_TO_INT_Q(r,X,rsz,rsg) _FP_TO_INT(Q,2,r,X,rsz,rsg) | |
265 | #define FP_FROM_INT_Q(X,r,rs,rt) _FP_FROM_INT(Q,2,X,r,rs,rt) | |
266 | ||
267 | #define _FP_FRAC_HIGH_Q(X) _FP_FRAC_HIGH_2(X) | |
268 | #define _FP_FRAC_HIGH_RAW_Q(X) _FP_FRAC_HIGH_2(X) | |
269 | ||
270 | #endif /* not _FP_W_TYPE_SIZE < 64 */ |