1 /* 2 * Copyright 2013, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <portability.h> 18 #include <sys/types.h> 19 #include <endian.h> 20 21 #if defined(__mips_isa_rev) && (__mips_isa_rev >= 2) 22 23 uint16_t WRAP(__swap16md)(uint16_t x) { 24 register uint16_t _x = x; 25 register uint16_t _r; 26 __asm volatile ("wsbh %0, %1" : "=r" (_r) : "r" (_x)); 27 return _r; 28 } 29 30 uint32_t WRAP(__swap32md)(uint32_t x) { 31 register uint32_t _x = x; 32 register uint32_t _r; 33 __asm volatile ("wsbh %0, %1; rotr %0, %0, 16" : "=r" (_r) : "r" (_x)); 34 return _r; 35 } 36 37 #endif 38 39
