| /* | |
| * Copyright (c) 1997, 2022, Oracle and/or its affiliates. All rights reserved. | |
| * Copyright (c) 2014, Red Hat Inc. All rights reserved. | |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| * | |
| * This code is free software; you can redistribute it and/or modify it | |
| * under the terms of the GNU General Public License version 2 only, as | |
| * published by the Free Software Foundation. | |
| * | |
| * This code is distributed in the hope that it will be useful, but WITHOUT | |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| * version 2 for more details (a copy is included in the LICENSE file that | |
| * accompanied this code). | |
| * | |
| * You should have received a copy of the GNU General Public License version | |
| * 2 along with this work; if not, write to the Free Software Foundation, | |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| * | |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
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| */ | |
| #ifndef CPU_AARCH64_BYTES_AARCH64_HPP | |
| #define CPU_AARCH64_BYTES_AARCH64_HPP | |
| #include "memory/allStatic.hpp" | |
| #include "utilities/byteswap.hpp" | |
| class Bytes: AllStatic { | |
| public: | |
| // Efficient reading and writing of unaligned unsigned data in platform-specific byte ordering | |
| // (no special code is needed since x86 CPUs can access unaligned data) | |
| static inline u2 get_native_u2(address p) { return *(u2*)p; } | |
| static inline u4 get_native_u4(address p) { return *(u4*)p; } | |
| static inline u8 get_native_u8(address p) { return *(u8*)p; } | |
| static inline void put_native_u2(address p, u2 x) { *(u2*)p = x; } | |
| static inline void put_native_u4(address p, u4 x) { *(u4*)p = x; } | |
| static inline void put_native_u8(address p, u8 x) { *(u8*)p = x; } | |
| // Efficient reading and writing of unaligned unsigned data in Java | |
| // byte ordering (i.e. big-endian ordering). Byte-order reversal is | |
| // needed since x86 CPUs use little-endian format. | |
| static inline u2 get_Java_u2(address p) { return byteswap(get_native_u2(p)); } | |
| static inline u4 get_Java_u4(address p) { return byteswap(get_native_u4(p)); } | |
| static inline u8 get_Java_u8(address p) { return byteswap(get_native_u8(p)); } | |
| static inline void put_Java_u2(address p, u2 x) { put_native_u2(p, byteswap(x)); } | |
| static inline void put_Java_u4(address p, u4 x) { put_native_u4(p, byteswap(x)); } | |
| static inline void put_Java_u8(address p, u8 x) { put_native_u8(p, byteswap(x)); } | |
| }; | |
| #endif // CPU_AARCH64_BYTES_AARCH64_HPP |