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1 | /* -*-c-*- |
2 | * |
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3 | * $Id$ |
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4 | * |
5 | * Portable bit-level manipulation macros |
6 | * |
7 | * (c) 1998 Straylight/Edgeware |
8 | */ |
9 | |
10 | /*----- Licensing notice --------------------------------------------------* |
11 | * |
12 | * This file is part of the mLib utilities library. |
13 | * |
14 | * mLib is free software; you can redistribute it and/or modify |
15 | * it under the terms of the GNU Library General Public License as |
16 | * published by the Free Software Foundation; either version 2 of the |
17 | * License, or (at your option) any later version. |
18 | * |
19 | * mLib is distributed in the hope that it will be useful, |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
22 | * GNU Library General Public License for more details. |
23 | * |
24 | * You should have received a copy of the GNU Library General Public |
25 | * License along with mLib; if not, write to the Free |
26 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
27 | * MA 02111-1307, USA. |
28 | */ |
29 | |
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30 | #ifndef MLIB_BITS_H |
31 | #define MLIB_BITS_H |
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32 | |
33 | #ifdef __cplusplus |
34 | extern "C" { |
35 | #endif |
36 | |
37 | /*----- Header files ------------------------------------------------------*/ |
38 | |
39 | #include <limits.h> |
40 | #include <stddef.h> |
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41 | #if __STDC_VERSION__ >= 199900l |
42 | # include <stdint.h> |
43 | #endif |
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44 | |
45 | /*----- Decide on some types ----------------------------------------------*/ |
46 | |
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47 | /* --- Make GNU C shut up --- */ |
48 | |
49 | #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 91) |
50 | # define MLIB_BITS_EXTENSION __extension__ |
51 | #else |
52 | # define MLIB_BITS_EXTENSION |
53 | #endif |
54 | |
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55 | /* --- Decide on a 32-bit type --- * |
56 | * |
57 | * I want a type which is capable of expressing 32-bit numbers. Because some |
58 | * implementations have 64-bit @long@s (infinitely preferable to the abortion |
59 | * that is @long long@), using @unsigned long@ regardless is wasteful. So, |
60 | * if @int@ appears to be good enough, then I'll go with that. |
61 | */ |
62 | |
63 | #if UINT_MAX >= 0xffffffffu |
64 | typedef unsigned int uint32; |
65 | #else |
66 | typedef unsigned long uint32; |
67 | #endif |
68 | |
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69 | /* --- Decide on a 64-bit type --- * |
70 | * |
71 | * The test is quite subtle. Think about it. Note that (at least on my |
72 | * machine), the 32-bit macros are *much* faster than GCC's @long long@ |
73 | * support. |
74 | */ |
75 | |
76 | #if defined(ULONG_LONG_MAX) && !defined(ULLONG_MAX) |
77 | # define ULLONG_MAX ULONG_LONG_MAX |
78 | #endif |
79 | |
80 | #if UINT_MAX >> 31 > 0xffffffff |
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81 | # define HAVE_UINT64 |
82 | typedef unsigned int uint64; |
a6f4a484 |
83 | #elif ULONG_MAX >> 31 > 0xffffffff |
1f175471 |
84 | # define HAVE_UINT64 |
85 | typedef unsigned long uint64; |
a6f4a484 |
86 | #elif defined(ULLONG_MAX) |
1f175471 |
87 | # define HAVE_UINT64 |
88 | MLIB_BITS_EXTENSION typedef unsigned long long uint64; |
a6f4a484 |
89 | #endif |
90 | |
91 | #ifdef DEBUG64 |
92 | # undef HAVE_UINT64 |
93 | #endif |
94 | |
95 | #ifdef HAVE_UINT64 |
96 | typedef struct { uint64 i; } kludge64; |
97 | #else |
98 | typedef struct { uint32 hi, lo; } kludge64; |
99 | #endif |
100 | |
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101 | /* --- Decide on a 24-bit type --- */ |
102 | |
103 | #if UINT_MAX >= 0x00ffffffu |
104 | typedef unsigned int uint24; |
105 | #else |
106 | typedef unsigned long uint24; |
107 | #endif |
108 | |
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109 | /* --- Decide on 16-bit and 8-bit types --- * |
110 | * |
111 | * This is more for brevity than anything else. |
112 | */ |
113 | |
114 | typedef unsigned short uint16; |
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115 | typedef unsigned char octet, uint8; |
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116 | |
117 | /* --- WARNING! --- * |
118 | * |
119 | * Never lose sight of the fact that the above types may be wider than the |
120 | * names suggest. Some architectures have 32-bit @short@s for example. |
121 | */ |
122 | |
123 | /*----- Macros ------------------------------------------------------------*/ |
124 | |
125 | /* --- Useful masks --- */ |
126 | |
127 | #define MASK8 0xffu |
128 | #define MASK16 0xffffu |
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129 | #define MASK16_L MASK16 |
130 | #define MASK16_B MASK16 |
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131 | #define MASK24 0xffffffu |
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132 | #define MASK24_L MASK24 |
133 | #define MASK24_B MASK24 |
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134 | #define MASK32 0xffffffffu |
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135 | #define MASK32_L MASK32 |
136 | #define MASK32_B MASK32 |
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137 | |
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138 | #ifdef HAVE_UINT64 |
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139 | # define MASK64 MLIB_BITS_EXTENSION 0xffffffffffffffffu |
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140 | # define MASK64_L MASK64 |
141 | # define MASK64_B MASK64 |
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142 | #endif |
143 | |
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144 | /* --- Sizes --- */ |
145 | |
146 | #define SZ_8 1 |
147 | #define SZ_16 2 |
148 | #define SZ_16_L 2 |
149 | #define SZ_16_B 2 |
150 | #define SZ_24 3 |
151 | #define SZ_24_L 3 |
152 | #define SZ_24_B 3 |
153 | #define SZ_32 4 |
154 | #define SZ_32_L 4 |
155 | #define SZ_32_B 4 |
156 | |
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157 | #ifdef HAVE_UINT64 |
158 | # define SZ_64 8 |
159 | # define SZ_64_L 8 |
160 | # define SZ_64_B 8 |
161 | #endif |
162 | |
163 | /* --- Type aliases --- */ |
164 | |
165 | #define TY_U8 octet |
166 | #define TY_U16 uint16 |
167 | #define TY_U16_L uint16 |
168 | #define TY_U16_B uint16 |
169 | #define TY_U24 uint24 |
170 | #define TY_U24_L uint24 |
171 | #define TY_U24_B uint24 |
172 | #define TY_U32 uint32 |
173 | #define TY_U32_L uint32 |
174 | #define TY_U32_B uint32 |
175 | |
176 | #ifdef HAVE_UINT64 |
177 | # define TY_U64 uint64 |
178 | # define TY_U64_L uint64 |
179 | # define TY_U64_B uint64 |
180 | #endif |
181 | |
182 | /* --- List macros --- */ |
183 | |
184 | #ifdef HAVE_UINT64 |
185 | # define DOUINTCONV(_) \ |
186 | _(8, 8, 8) \ |
187 | _(16, 16, 16) _(16, 16_L, 16l) _(16, 16_B, 16b) \ |
188 | _(24, 24, 24) _(24, 24_L, 24l) _(24, 24_B, 24b) \ |
189 | _(32, 32, 32) _(32, 32_L, 32l) _(32, 32_B, 32b) \ |
190 | _(64, 64, 64) _(64, 64_L, 64l) _(64, 64_B, 64b) |
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191 | # define DOUINTSZ(_) _(8) _(16) _(24) _(32) _(64) |
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192 | #else |
193 | # define DOUINTCONV(_) \ |
194 | _(8, 8, 8) \ |
195 | _(16, 16, 16) _(16, 16_L, 16l) _(16, 16_B, 16b) \ |
196 | _(24, 24, 24) _(24, 24_L, 24l) _(24, 24_B, 24b) \ |
197 | _(32, 32, 32) _(32, 32_L, 32l) _(32, 32_B, 32b) |
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198 | # define DOUINTSZ(_) _(8) _(16) _(24) _(32) |
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199 | #endif |
200 | |
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201 | /* --- Type coercions --- */ |
202 | |
203 | #define U8(x) ((octet)((x) & MASK8)) |
204 | #define U16(x) ((uint16)((x) & MASK16)) |
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205 | #define U24(x) ((uint24)((x) & MASK24)) |
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206 | #define U32(x) ((uint32)((x) & MASK32)) |
207 | |
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208 | #ifdef HAVE_UINT64 |
209 | # define U64(x) ((uint64)(x) & MASK64) |
210 | # define U64_(d, x) ((d).i = U64(x).i) |
211 | #else |
212 | # define U64_(d, x) ((d).hi = U32((x).hi), (d).lo = U32((x).lo)) |
213 | #endif |
214 | |
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215 | /* --- Safe shifting macros --- */ |
216 | |
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217 | #define LSL8(v, s) U8(U8(v) << ((s) & 7u)) |
218 | #define LSR8(v, s) U8(U8(v) >> ((s) & 7u)) |
219 | #define LSL16(v, s) U16(U16(v) << ((s) & 15u)) |
220 | #define LSR16(v, s) U16(U16(v) >> ((s) & 15u)) |
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221 | #define LSL24(v, s) U24(U24(v) << ((s) % 24u)) |
222 | #define LSR24(v, s) U24(U24(v) >> ((s) % 24u)) |
bc9f60b6 |
223 | #define LSL32(v, s) U32(U32(v) << ((s) & 31u)) |
224 | #define LSR32(v, s) U32(U32(v) >> ((s) & 31u)) |
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225 | |
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226 | #ifdef HAVE_UINT64 |
227 | # define LSL64(v, s) U64(U64(v) << ((s) & 63u)) |
228 | # define LSR64(v, s) U64(U64(v) >> ((s) & 63u)) |
229 | # define LSL64_(d, v, s) ((d).i = LSL64((v).i, (s))) |
230 | # define LSR64_(d, v, s) ((d).i = LSR64((v).i, (s))) |
231 | #else |
232 | # define LSL64_(d, v, s) do { \ |
233 | unsigned _s = (s) & 63u; \ |
234 | uint32 _l = (v).lo, _h = (v).hi; \ |
235 | kludge64 *_d = &(d); \ |
236 | if (_s >= 32) { \ |
237 | _d->hi = LSL32(_l, _s - 32u); \ |
238 | _d->lo = 0; \ |
239 | } else if (!_s) { \ |
240 | _d->lo = _l; \ |
241 | _d->hi = _h; \ |
242 | } else { \ |
243 | _d->hi = LSL32(_h, _s) | LSR32(_l, 32u - _s); \ |
244 | _d->lo = LSL32(_l, _s); \ |
245 | } \ |
246 | } while (0) |
247 | # define LSR64_(d, v, s) do { \ |
248 | unsigned _s = (s) & 63u; \ |
249 | uint32 _l = (v).lo, _h = (v).hi; \ |
250 | kludge64 *_d = &(d); \ |
251 | if (_s >= 32) { \ |
252 | _d->lo = LSR32(_h, _s - 32u); \ |
253 | _d->hi = 0; \ |
254 | } else if (!_s) { \ |
255 | _d->lo = _l; \ |
256 | _d->hi = _h; \ |
257 | } else { \ |
258 | _d->lo = LSR32(_l, _s) | LSL32(_h, 32u - _s); \ |
259 | _d->hi = LSR32(_h, _s); \ |
260 | } \ |
261 | } while (0) |
262 | #endif |
263 | |
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264 | /* --- Rotation macros --- */ |
265 | |
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266 | #define ROL8(v, s) (LSL8((v), (s)) | (LSR8((v), 8u - (s)))) |
267 | #define ROR8(v, s) (LSR8((v), (s)) | (LSL8((v), 8u - (s)))) |
268 | #define ROL16(v, s) (LSL16((v), (s)) | (LSR16((v), 16u - (s)))) |
269 | #define ROR16(v, s) (LSR16((v), (s)) | (LSL16((v), 16u - (s)))) |
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270 | #define ROL24(v, s) (LSL24((v), (s)) | (LSR24((v), 24u - (s)))) |
271 | #define ROR24(v, s) (LSR24((v), (s)) | (LSL24((v), 24u - (s)))) |
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272 | #define ROL32(v, s) (LSL32((v), (s)) | (LSR32((v), 32u - (s)))) |
273 | #define ROR32(v, s) (LSR32((v), (s)) | (LSL32((v), 32u - (s)))) |
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274 | |
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275 | #ifdef HAVE_UINT64 |
276 | # define ROL64(v, s) (LSL64((v), (s)) | (LSR64((v), 64u - (s)))) |
277 | # define ROR64(v, s) (LSR64((v), (s)) | (LSL64((v), 64u - (s)))) |
278 | # define ROL64_(d, v, s) ((d).i = ROL64((v).i, (s))) |
279 | # define ROR64_(d, v, s) ((d).i = ROR64((v).i, (s))) |
280 | #else |
281 | # define ROL64_(d, v, s) do { \ |
282 | unsigned _s = (s) & 63u; \ |
283 | uint32 _l = (v).lo, _h = (v).hi; \ |
284 | kludge64 *_d = &(d); \ |
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285 | if (_s > 32) { \ |
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286 | _d->hi = LSL32(_l, _s - 32u) | LSR32(_h, 64u - _s); \ |
287 | _d->lo = LSL32(_h, _s - 32u) | LSR32(_l, 64u - _s); \ |
288 | } else if (!_s) { \ |
289 | _d->lo = _l; \ |
290 | _d->hi = _h; \ |
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291 | } else if (_s == 32) { \ |
292 | _d->lo = _h; \ |
293 | _d->hi = _l; \ |
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294 | } else { \ |
295 | _d->hi = LSL32(_h, _s) | LSR32(_l, 32u - _s); \ |
296 | _d->lo = LSL32(_l, _s) | LSR32(_h, 32u - _s); \ |
297 | } \ |
298 | } while (0) |
299 | # define ROR64_(d, v, s) do { \ |
300 | unsigned _s = (s) & 63u; \ |
301 | uint32 _l = (v).lo, _h = (v).hi; \ |
302 | kludge64 *_d = &(d); \ |
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303 | if (_s > 32) { \ |
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304 | _d->hi = LSR32(_l, _s - 32u) | LSL32(_h, 64u - _s); \ |
305 | _d->lo = LSR32(_h, _s - 32u) | LSL32(_l, 64u - _s); \ |
306 | } else if (!_s) { \ |
307 | _d->lo = _l; \ |
308 | _d->hi = _h; \ |
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309 | } else if (_s == 32) { \ |
310 | _d->lo = _h; \ |
311 | _d->hi = _l; \ |
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312 | } else { \ |
313 | _d->hi = LSR32(_h, _s) | LSL32(_l, 32u - _s); \ |
314 | _d->lo = LSR32(_l, _s) | LSL32(_h, 32u - _s); \ |
315 | } \ |
316 | } while (0) |
317 | #endif |
318 | |
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319 | /* --- Storage and retrieval --- */ |
320 | |
321 | #define GETBYTE(p, o) (((octet *)(p))[o] & MASK8) |
322 | #define PUTBYTE(p, o, v) (((octet *)(p))[o] = U8((v))) |
323 | |
324 | #define LOAD8(p) (GETBYTE((p), 0)) |
325 | #define STORE8(p, v) (PUTBYTE((p), 0, (v))) |
326 | |
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327 | #define LOAD16_B(p) \ |
328 | (((uint16)GETBYTE((p), 0) << 8) | \ |
329 | ((uint16)GETBYTE((p), 1) << 0)) |
330 | #define LOAD16_L(p) \ |
331 | (((uint16)GETBYTE((p), 0) << 0) | \ |
332 | ((uint16)GETBYTE((p), 1) << 8)) |
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333 | #define LOAD16(p) LOAD16_B((p)) |
334 | |
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335 | #define STORE16_B(p, v) \ |
336 | (PUTBYTE((p), 0, (uint16)(v) >> 8), \ |
337 | PUTBYTE((p), 1, (uint16)(v) >> 0)) |
338 | #define STORE16_L(p, v) \ |
339 | (PUTBYTE((p), 0, (uint16)(v) >> 0), \ |
340 | PUTBYTE((p), 1, (uint16)(v) >> 8)) |
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341 | #define STORE16(p, v) STORE16_B((p), (v)) |
342 | |
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343 | #define LOAD24_B(p) \ |
344 | (((uint24)GETBYTE((p), 0) << 16) | \ |
345 | ((uint24)GETBYTE((p), 1) << 8) | \ |
346 | ((uint24)GETBYTE((p), 2) << 0)) |
347 | #define LOAD24_L(p) \ |
348 | (((uint24)GETBYTE((p), 0) << 0) | \ |
349 | ((uint24)GETBYTE((p), 1) << 8) | \ |
350 | ((uint24)GETBYTE((p), 2) << 16)) |
351 | #define LOAD24(p) LOAD24_B((p)) |
352 | |
353 | #define STORE24_B(p, v) \ |
354 | (PUTBYTE((p), 0, (uint24)(v) >> 16), \ |
355 | PUTBYTE((p), 1, (uint24)(v) >> 8), \ |
356 | PUTBYTE((p), 2, (uint24)(v) >> 0)) |
357 | #define STORE24_L(p, v) \ |
358 | (PUTBYTE((p), 0, (uint24)(v) >> 0), \ |
359 | PUTBYTE((p), 1, (uint24)(v) >> 8), \ |
360 | PUTBYTE((p), 2, (uint24)(v) >> 16)) |
361 | #define STORE24(p, v) STORE24_B((p), (v)) |
362 | |
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363 | #define LOAD32_B(p) \ |
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364 | (((uint32)GETBYTE((p), 0) << 24) | \ |
365 | ((uint32)GETBYTE((p), 1) << 16) | \ |
366 | ((uint32)GETBYTE((p), 2) << 8) | \ |
367 | ((uint32)GETBYTE((p), 3) << 0)) |
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368 | #define LOAD32_L(p) \ |
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369 | (((uint32)GETBYTE((p), 0) << 0) | \ |
370 | ((uint32)GETBYTE((p), 1) << 8) | \ |
371 | ((uint32)GETBYTE((p), 2) << 16) | \ |
372 | ((uint32)GETBYTE((p), 3) << 24)) |
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373 | #define LOAD32(p) LOAD32_B((p)) |
374 | |
375 | #define STORE32_B(p, v) \ |
0d4e268a |
376 | (PUTBYTE((p), 0, (uint32)(v) >> 24), \ |
377 | PUTBYTE((p), 1, (uint32)(v) >> 16), \ |
378 | PUTBYTE((p), 2, (uint32)(v) >> 8), \ |
379 | PUTBYTE((p), 3, (uint32)(v) >> 0)) |
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380 | #define STORE32_L(p, v) \ |
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381 | (PUTBYTE((p), 0, (uint32)(v) >> 0), \ |
382 | PUTBYTE((p), 1, (uint32)(v) >> 8), \ |
383 | PUTBYTE((p), 2, (uint32)(v) >> 16), \ |
384 | PUTBYTE((p), 3, (uint32)(v) >> 24)) |
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385 | #define STORE32(p, v) STORE32_B((p), (v)) |
386 | |
a6f4a484 |
387 | #ifdef HAVE_UINT64 |
388 | |
389 | # define LOAD64_B(p) \ |
390 | (((uint64)GETBYTE((p), 0) << 56) | \ |
391 | ((uint64)GETBYTE((p), 1) << 48) | \ |
392 | ((uint64)GETBYTE((p), 2) << 40) | \ |
393 | ((uint64)GETBYTE((p), 3) << 32) | \ |
394 | ((uint64)GETBYTE((p), 4) << 24) | \ |
395 | ((uint64)GETBYTE((p), 5) << 16) | \ |
396 | ((uint64)GETBYTE((p), 6) << 8) | \ |
397 | ((uint64)GETBYTE((p), 7) << 0)) |
398 | # define LOAD64_L(p) \ |
399 | (((uint64)GETBYTE((p), 0) << 0) | \ |
400 | ((uint64)GETBYTE((p), 1) << 8) | \ |
401 | ((uint64)GETBYTE((p), 2) << 16) | \ |
402 | ((uint64)GETBYTE((p), 3) << 24) | \ |
403 | ((uint64)GETBYTE((p), 4) << 32) | \ |
404 | ((uint64)GETBYTE((p), 5) << 40) | \ |
405 | ((uint64)GETBYTE((p), 6) << 48) | \ |
406 | ((uint64)GETBYTE((p), 7) << 56)) |
407 | # define LOAD64(p) LOAD64_B((p)) |
408 | # define LOAD64_B_(d, p) ((d).i = LOAD64_B((p))) |
409 | # define LOAD64_L_(d, p) ((d).i = LOAD64_L((p))) |
410 | # define LOAD64_(d, p) LOAD64_B_((d), (p)) |
411 | |
412 | # define STORE64_B(p, v) \ |
413 | (PUTBYTE((p), 0, (uint64)(v) >> 56), \ |
414 | PUTBYTE((p), 1, (uint64)(v) >> 48), \ |
415 | PUTBYTE((p), 2, (uint64)(v) >> 40), \ |
416 | PUTBYTE((p), 3, (uint64)(v) >> 32), \ |
417 | PUTBYTE((p), 4, (uint64)(v) >> 24), \ |
418 | PUTBYTE((p), 5, (uint64)(v) >> 16), \ |
419 | PUTBYTE((p), 6, (uint64)(v) >> 8), \ |
420 | PUTBYTE((p), 7, (uint64)(v) >> 0)) |
421 | # define STORE64_L(p, v) \ |
422 | (PUTBYTE((p), 0, (uint64)(v) >> 0), \ |
423 | PUTBYTE((p), 1, (uint64)(v) >> 8), \ |
424 | PUTBYTE((p), 2, (uint64)(v) >> 16), \ |
425 | PUTBYTE((p), 3, (uint64)(v) >> 24), \ |
426 | PUTBYTE((p), 4, (uint64)(v) >> 32), \ |
427 | PUTBYTE((p), 5, (uint64)(v) >> 40), \ |
428 | PUTBYTE((p), 6, (uint64)(v) >> 48), \ |
429 | PUTBYTE((p), 7, (uint64)(v) >> 56)) |
430 | # define STORE64(p, v) STORE64_B((p), (v)) |
431 | # define STORE64_B_(p, v) STORE64_B((p), (v).i) |
432 | # define STORE64_L_(p, v) STORE64_L((p), (v).i) |
433 | # define STORE64_(p, v) STORE64_B_((p), (v)) |
434 | |
435 | #else |
436 | |
437 | # define LOAD64_B_(d, p) \ |
438 | ((d).hi = LOAD32_B((octet *)(p) + 0), \ |
439 | (d).lo = LOAD32_B((octet *)(p) + 4)) |
440 | # define LOAD64_L_(d, p) \ |
441 | ((d).lo = LOAD32_L((octet *)(p) + 0), \ |
442 | (d).hi = LOAD32_L((octet *)(p) + 4)) |
443 | # define LOAD64_(d, p) LOAD64_B_((d), (p)) |
444 | |
445 | # define STORE64_B_(p, v) \ |
446 | (STORE32_B((octet *)(p) + 0, (v).hi), \ |
447 | STORE32_B((octet *)(p) + 4, (v).lo)) |
448 | # define STORE64_L_(p, v) \ |
449 | (STORE32_L((octet *)(p) + 0, (v).lo), \ |
450 | STORE32_L((octet *)(p) + 4, (v).hi)) |
451 | # define STORE64_(p, v) STORE64_B_((p), (v)) |
452 | |
453 | #endif |
454 | |
455 | /* --- Other operations on 64-bit integers --- */ |
456 | |
457 | #ifdef HAVE_UINT64 |
458 | # define SET64(d, h, l) ((d).i = (U64((h)) << 32) | U64((l))) |
459 | # define ASSIGN64(d, x) ((d).i = U64((x))) |
460 | # define HI64(x) U32((x).i >> 32) |
461 | # define LO64(x) U32((x).i) |
3b7cea93 |
462 | # define GET64(t, x) ((t)(x).i) |
a6f4a484 |
463 | #else |
464 | # define SET64(d, h, l) ((d).hi = U32(h), (d).lo = U32(l)) |
465 | # define ASSIGN64(d, x) \ |
466 | ((d).hi = ((x & ~MASK32) >> 16) >> 16, (d).lo = U32(x)) |
467 | # define HI64(x) U32((x).hi) |
468 | # define LO64(x) U32((x).lo) |
3b7cea93 |
469 | # define GET64(t, x) (((((t)HI64(x) << 16) << 16) & ~MASK32) | (t)LO64(x)) |
a6f4a484 |
470 | #endif |
471 | |
472 | #ifdef HAVE_UINT64 |
473 | # define AND64(d, x, y) ((d).i = (x).i & (y).i) |
474 | # define OR64(d, x, y) ((d).i = (x).i | (y).i) |
475 | # define XOR64(d, x, y) ((d).i = (x).i ^ (y).i) |
476 | # define CPL64(d, x) ((d).i = ~(x).i) |
477 | # define ADD64(d, x, y) ((d).i = (x).i + (y).i) |
478 | # define SUB64(d, x, y) ((d).i = (x).i - (y).i) |
479 | # define CMP64(x, op, y) ((x).i op (y).i) |
480 | # define ZERO64(x) ((x) == 0) |
481 | #else |
482 | # define AND64(d, x, y) ((d).lo = (x).lo & (y).lo, (d).hi = (x).hi & (y).hi) |
483 | # define OR64(d, x, y) ((d).lo = (x).lo | (y).lo, (d).hi = (x).hi | (y).hi) |
484 | # define XOR64(d, x, y) ((d).lo = (x).lo ^ (y).lo, (d).hi = (x).hi ^ (y).hi) |
485 | # define CPL64(d, x) ((d).lo = ~(x).lo, (d).hi = ~(x).hi) |
486 | # define ADD64(d, x, y) do { \ |
487 | uint32 _x = U32((x).lo + (y).lo); \ |
488 | (d).hi = (x).hi + (y).hi + (_x < (x).lo); \ |
489 | (d).lo = _x; \ |
490 | } while (0) |
491 | # define SUB64(d, x, y) do { \ |
492 | uint32 _x = U32((x).lo - (y).lo); \ |
493 | (d).hi = (x).hi - (y).hi - (_x > (x).lo); \ |
494 | (d).lo = _x; \ |
495 | } while (0) |
496 | # define CMP64(x, op, y) \ |
497 | ((x).hi == (y).hi ? (x).lo op (y).lo : (x).hi op (y).hi) |
498 | # define ZERO64(x) ((x).lo == 0 && (x).hi == 0) |
499 | #endif |
500 | |
91928c79 |
501 | /* --- Storing integers in tables --- */ |
502 | |
503 | #ifdef HAVE_UINT64 |
504 | # define X64(x, y) { 0x##x##y } |
505 | #else |
506 | # define X64(x, y) { 0x##x, 0x##y } |
507 | #endif |
508 | |
6b033bc4 |
509 | /*----- That's all, folks -------------------------------------------------*/ |
510 | |
511 | #ifdef __cplusplus |
512 | } |
513 | #endif |
514 | |
515 | #endif |