| … | |
… | |
| 289 | |
289 | |
| 290 | return r + ecb_ld32 (x); |
290 | return r + ecb_ld32 (x); |
| 291 | } |
291 | } |
| 292 | #endif |
292 | #endif |
| 293 | |
293 | |
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294 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) ecb_const; |
| 294 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
295 | ecb_function_ uint8_t ecb_bitrev8 (uint8_t x) |
| 295 | { |
296 | { |
| 296 | return ( (x * 0x0802U & 0x22110U) |
297 | return ( (x * 0x0802U & 0x22110U) |
| 297 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
298 | | (x * 0x8020U & 0x88440U)) * 0x10101U >> 16; |
| 298 | } |
299 | } |
| 299 | |
300 | |
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301 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) ecb_const; |
| 300 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
302 | ecb_function_ uint16_t ecb_bitrev16 (uint16_t x) |
| 301 | { |
303 | { |
| 302 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
304 | x = ((x >> 1) & 0x5555) | ((x & 0x5555) << 1); |
| 303 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
305 | x = ((x >> 2) & 0x3333) | ((x & 0x3333) << 2); |
| 304 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
306 | x = ((x >> 4) & 0x0f0f) | ((x & 0x0f0f) << 4); |
| 305 | x = ( x >> 8 ) | ( x << 8); |
307 | x = ( x >> 8 ) | ( x << 8); |
| 306 | |
308 | |
| 307 | return x; |
309 | return x; |
| 308 | } |
310 | } |
| 309 | |
311 | |
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312 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) ecb_const; |
| 310 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
313 | ecb_function_ uint32_t ecb_bitrev32 (uint32_t x) |
| 311 | { |
314 | { |
| 312 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
315 | x = ((x >> 1) & 0x55555555) | ((x & 0x55555555) << 1); |
| 313 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
316 | x = ((x >> 2) & 0x33333333) | ((x & 0x33333333) << 2); |
| 314 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
317 | x = ((x >> 4) & 0x0f0f0f0f) | ((x & 0x0f0f0f0f) << 4); |
