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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef PLATFORM_UTILS_WIN_H_ | 5 #ifndef PLATFORM_UTILS_WIN_H_ |
6 #define PLATFORM_UTILS_WIN_H_ | 6 #define PLATFORM_UTILS_WIN_H_ |
7 | 7 |
8 #include <intrin.h> | 8 #include <intrin.h> |
| 9 #include <stdlib.h> |
9 | 10 |
10 namespace dart { | 11 namespace dart { |
11 | 12 |
12 inline int Utils::CountTrailingZeros(uword x) { | 13 inline int Utils::CountTrailingZeros(uword x) { |
13 unsigned long result; // NOLINT | 14 unsigned long result; // NOLINT |
14 #if defined(ARCH_IS_32_BIT) | 15 #if defined(ARCH_IS_32_BIT) |
15 _BitScanReverse(&result, x); | 16 _BitScanReverse(&result, x); |
16 #elif defined(ARCH_IS_64_BIT) | 17 #elif defined(ARCH_IS_64_BIT) |
17 _BitScanReverse64(&result, x); | 18 _BitScanReverse64(&result, x); |
18 #else | 19 #else |
19 #error Architecture is not 32-bit or 64-bit. | 20 #error Architecture is not 32-bit or 64-bit. |
20 #endif | 21 #endif |
21 return static_cast<int>(result); | 22 return static_cast<int>(result); |
22 }; | 23 }; |
23 | 24 |
| 25 |
| 26 inline uint16_t Utils::HostToBigEndian16(uint16_t value) { |
| 27 return _byteswap_ushort(value); |
| 28 } |
| 29 |
| 30 |
| 31 inline uint32_t Utils::HostToBigEndian32(uint32_t value) { |
| 32 return _byteswap_ulong(value); |
| 33 } |
| 34 |
| 35 |
| 36 inline uint64_t Utils::HostToBigEndian64(uint64_t value) { |
| 37 return _byteswap_uint64(value); |
| 38 } |
| 39 |
| 40 |
| 41 inline uint16_t Utils::HostToLittleEndian16(uint16_t value) { |
| 42 return value; |
| 43 } |
| 44 |
| 45 |
| 46 inline uint32_t Utils::HostToLittleEndian32(uint32_t value) { |
| 47 return value; |
| 48 } |
| 49 |
| 50 |
| 51 inline uint64_t Utils::HostToLittleEndian64(uint64_t value) { |
| 52 return value; |
| 53 } |
| 54 |
24 } // namespace dart | 55 } // namespace dart |
25 | 56 |
26 #endif // PLATFORM_UTILS_WIN_H_ | 57 #endif // PLATFORM_UTILS_WIN_H_ |
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