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annotate src/os_cpu/windows_x86/vm/bytes_windows_x86.inline.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | c18cbe5936b8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1972 | 2 * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
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20 * or visit www.oracle.com if you need additional information or have any |
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c18cbe5936b8
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef OS_CPU_WINDOWS_X86_VM_BYTES_WINDOWS_X86_INLINE_HPP |
| 26 #define OS_CPU_WINDOWS_X86_VM_BYTES_WINDOWS_X86_INLINE_HPP | |
| 27 | |
| 0 | 28 #pragma warning(disable: 4035) // Disable warning 4035: no return value |
| 29 | |
| 30 // Efficient swapping of data bytes from Java byte | |
| 31 // ordering to native byte ordering and vice versa. | |
| 32 inline u2 Bytes::swap_u2(u2 x) { | |
| 33 #ifdef AMD64 | |
| 34 address p = (address) &x; | |
| 35 return ( (u2(p[0]) << 8 ) | ( u2(p[1])) ); | |
| 36 #else | |
| 37 __asm { | |
| 38 mov ax, x | |
| 39 xchg al, ah | |
| 40 } | |
| 41 // no return statement needed, result is already in ax | |
| 42 // compiler warning C4035 disabled via warning pragma | |
| 43 #endif // AMD64 | |
| 44 } | |
| 45 | |
| 46 inline u4 Bytes::swap_u4(u4 x) { | |
| 47 #ifdef AMD64 | |
| 48 address p = (address) &x; | |
| 49 return ( (u4(p[0]) << 24) | (u4(p[1]) << 16) | (u4(p[2]) << 8) | u4(p[3])) ; | |
| 50 #else | |
| 51 __asm { | |
| 52 mov eax, x | |
| 53 bswap eax | |
| 54 } | |
| 55 // no return statement needed, result is already in eax | |
| 56 // compiler warning C4035 disabled via warning pragma | |
| 57 #endif // AMD64 | |
| 58 } | |
| 59 | |
| 60 #ifdef AMD64 | |
| 61 inline u8 Bytes::swap_u8(u8 x) { | |
| 62 address p = (address) &x; | |
| 63 return ( (u8(p[0]) << 56) | (u8(p[1]) << 48) | (u8(p[2]) << 40) | (u8(p[3]) << 32) | | |
| 64 (u8(p[4]) << 24) | (u8(p[5]) << 16) | (u8(p[6]) << 8) | u8(p[7])) ; | |
| 65 } | |
| 66 | |
| 67 #else | |
| 68 // Helper function for swap_u8 | |
| 69 inline u8 Bytes::swap_u8_base(u4 x, u4 y) { | |
| 70 __asm { | |
| 71 mov eax, y | |
| 72 mov edx, x | |
| 73 bswap eax | |
| 74 bswap edx | |
| 75 } | |
| 76 // no return statement needed, result is already in edx:eax | |
| 77 // compiler warning C4035 disabled via warning pragma | |
| 78 } | |
| 79 | |
| 80 inline u8 Bytes::swap_u8(u8 x) { | |
| 81 return swap_u8_base(*(u4*)&x, *(((u4*)&x)+1)); | |
| 82 } | |
| 83 #endif // AMD64 | |
| 84 | |
| 85 #pragma warning(default: 4035) // Enable warning 4035: no return value | |
| 1972 | 86 |
| 87 #endif // OS_CPU_WINDOWS_X86_VM_BYTES_WINDOWS_X86_INLINE_HPP |