| /* |
| * Copyright (c) 2009 Mans Rullgard <mans@mansr.com> |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef AVUTIL_MIPS_INTREADWRITE_H |
| #define AVUTIL_MIPS_INTREADWRITE_H |
| |
| #include <stdint.h> |
| #include "config.h" |
| |
| #if HAVE_INLINE_ASM |
| |
| #define AV_RN32 AV_RN32 |
| static av_always_inline uint32_t AV_RN32(const void *p) |
| { |
| uint32_t v; |
| __asm__ ("lwl %0, %1 \n\t" |
| "lwr %0, %2 \n\t" |
| : "=&r"(v) |
| : "m"(*(const uint32_t *)((const uint8_t *)p+3*!HAVE_BIGENDIAN)), |
| "m"(*(const uint32_t *)((const uint8_t *)p+3*HAVE_BIGENDIAN))); |
| return v; |
| } |
| |
| #define AV_WN32 AV_WN32 |
| static av_always_inline void AV_WN32(void *p, uint32_t v) |
| { |
| __asm__ ("swl %2, %0 \n\t" |
| "swr %2, %1 \n\t" |
| : "=m"(*(uint32_t *)((uint8_t *)p+3*!HAVE_BIGENDIAN)), |
| "=m"(*(uint32_t *)((uint8_t *)p+3*HAVE_BIGENDIAN)) |
| : "r"(v)); |
| } |
| |
| #if ARCH_MIPS64 |
| |
| #define AV_RN64 AV_RN64 |
| static av_always_inline uint64_t AV_RN64(const void *p) |
| { |
| uint64_t v; |
| __asm__ ("ldl %0, %1 \n\t" |
| "ldr %0, %2 \n\t" |
| : "=&r"(v) |
| : "m"(*(const uint64_t *)((const uint8_t *)p+7*!HAVE_BIGENDIAN)), |
| "m"(*(const uint64_t *)((const uint8_t *)p+7*HAVE_BIGENDIAN))); |
| return v; |
| } |
| |
| #define AV_WN64 AV_WN64 |
| static av_always_inline void AV_WN64(void *p, uint64_t v) |
| { |
| __asm__ ("sdl %2, %0 \n\t" |
| "sdr %2, %1 \n\t" |
| : "=m"(*(uint64_t *)((uint8_t *)p+7*!HAVE_BIGENDIAN)), |
| "=m"(*(uint64_t *)((uint8_t *)p+7*HAVE_BIGENDIAN)) |
| : "r"(v)); |
| } |
| |
| #else |
| |
| #define AV_RN64 AV_RN64 |
| static av_always_inline uint64_t AV_RN64(const void *p) |
| { |
| union { uint64_t v; uint32_t hl[2]; } v; |
| v.hl[0] = AV_RN32(p); |
| v.hl[1] = AV_RN32((const uint8_t *)p + 4); |
| return v.v; |
| } |
| |
| #define AV_WN64 AV_WN64 |
| static av_always_inline void AV_WN64(void *p, uint64_t v) |
| { |
| union { uint64_t v; uint32_t hl[2]; } vv = { v }; |
| AV_WN32(p, vv.hl[0]); |
| AV_WN32((uint8_t *)p + 4, vv.hl[1]); |
| } |
| |
| #endif /* ARCH_MIPS64 */ |
| |
| #endif /* HAVE_INLINE_ASM */ |
| |
| #endif /* AVUTIL_MIPS_INTREADWRITE_H */ |