41 lines
1.2 KiB
C
41 lines
1.2 KiB
C
/*
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* Copyright 2013, The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <portability.h>
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#include <sys/types.h>
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/*
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* REV and REV16 weren't available on ARM5 or ARM4.
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*/
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#if !defined __ARM_ARCH_5__ && !defined __ARM_ARCH_5T__ && \
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!defined __ARM_ARCH_5TE__ && !defined __ARM_ARCH_5TEJ__ && \
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!defined __ARM_ARCH_4T__ && !defined __ARM_ARCH_4__
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uint16_t WRAP(__swap16md)(uint16_t x) {
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register uint16_t _x = (x);
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__asm volatile ("rev16 %0, %0" : "+l" (_x));
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return _x;
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}
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uint32_t WRAP(__swap32md)(uint32_t x) {
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register uint32_t _x = (x);
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__asm volatile ("rev %0, %0" : "+l" (_x));
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return _x;
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}
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#endif
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