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| 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
| 2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
| 3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
| 4 // met: | 4 // met: |
| 5 // | 5 // |
| 6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
| 7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
| 8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
| 9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
| 10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
| (...skipping 509 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 520 src += kStepSize; | 520 src += kStepSize; |
| 521 } | 521 } |
| 522 } | 522 } |
| 523 #endif | 523 #endif |
| 524 while (dest < limit) { | 524 while (dest < limit) { |
| 525 *dest++ = static_cast<sinkchar>(*src++); | 525 *dest++ = static_cast<sinkchar>(*src++); |
| 526 } | 526 } |
| 527 } | 527 } |
| 528 | 528 |
| 529 | 529 |
| 530 static inline int Load16(const byte* ptr) { | |
| 531 #ifdef CAN_READ_UNALIGNED | |
| 532 return *reinterpret_cast<const uint16_t*>(ptr); | |
| 533 #else | |
| 534 uint32_t word; | |
| 535 word = ptr[1]; | |
| 536 word |= ptr[0] << 8; | |
| 537 return word; | |
| 538 #endif | |
| 539 } | |
| 540 | |
| 541 | |
| 542 static inline int Load32(const byte* ptr) { | |
| 543 #ifdef CAN_READ_UNALIGNED | |
| 544 return *reinterpret_cast<const uint32_t*>(ptr); | |
| 545 #else | |
| 546 uint32_t word; | |
| 547 word = ptr[3]; | |
| 548 word |= ptr[2] << 8; | |
| 549 word |= ptr[1] << 16; | |
| 550 word |= ptr[0] << 24; | |
| 551 return word; | |
| 552 #endif | |
| 553 } | |
| 554 | |
| 555 | |
| 556 static inline void Store16(byte* ptr, uint16_t value) { | |
| 557 #ifdef CAN_READ_UNALIGNED | |
| 558 *reinterpret_cast<uint16_t*>(ptr) = value; | |
| 559 #else | |
| 560 // Cast to avoid warning C4244 when compiling with Microsoft Visual C++. | |
| 561 ptr[1] = static_cast<byte>(value); | |
| 562 ptr[0] = value >> 8; | |
| 563 #endif | |
| 564 } | |
| 565 | |
| 566 | |
| 567 static inline void Store32(byte* ptr, uint32_t value) { | |
| 568 #ifdef CAN_READ_UNALIGNED | |
| 569 *reinterpret_cast<uint32_t*>(ptr) = value; | |
| 570 #else | |
| 571 ptr[3] = value; | |
| 572 ptr[2] = value >> 8; | |
| 573 ptr[1] = value >> 16; | |
| 574 ptr[0] = value >> 24; | |
| 575 #endif | |
| 576 } | |
| 577 | |
| 578 | |
| 579 } } // namespace v8::internal | 530 } } // namespace v8::internal |
| 580 | 531 |
| 581 #endif // V8_UTILS_H_ | 532 #endif // V8_UTILS_H_ |
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