wsbh is only avilable for MIPS R2+. Provide a fallback for older processors.
Signed-off-by: Jiaxun Yang <jiaxun.y...@flygoat.com> Reviewed-by: Shiyou Yin <yinshiyou...@loongson.cn> --- libavcodec/mips/cabac.h | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/libavcodec/mips/cabac.h b/libavcodec/mips/cabac.h index f1e953dabe..39c308c7e0 100644 --- a/libavcodec/mips/cabac.h +++ b/libavcodec/mips/cabac.h @@ -77,7 +77,15 @@ static av_always_inline int get_cabac_inline_mips(CABACContext *c, "lhu %[tmp0], 0(%[c_bytestream]) \n\t" #else "lhu %[tmp0], 0(%[c_bytestream]) \n\t" +#if HAVE_MIPS32R2 || HAVE_MIPS64R2 "wsbh %[tmp0], %[tmp0] \n\t" +#else + "and %[tmp1], %[tmp0], 0xff00ff00 \n\t" + "srl %[tmp1], %[tmp1], 8 \n\t" + "and %[tmp0], %[tmp0], 0x00ff00ff \n\t" + "sll %[tmp0], %[tmp0], 8 \n\t" + "or %[tmp0], %[tmp0], %[tmp1] \n\t" +#endif #endif PTR_SLL "%[tmp0], %[tmp0], 0x01 \n\t" PTR_SUBU "%[tmp0], %[tmp0], %[cabac_mask] \n\t" @@ -125,7 +133,15 @@ static av_always_inline int get_cabac_bypass_mips(CABACContext *c) "lhu %[tmp1], 0(%[c_bytestream]) \n\t" #else "lhu %[tmp1], 0(%[c_bytestream]) \n\t" +#if HAVE_MIPS32R2 || HAVE_MIPS64R2 "wsbh %[tmp1], %[tmp1] \n\t" +#else + "and %[tmp0], %[tmp1], 0xff00ff00 \n\t" + "srl %[tmp0], %[tmp0], 8 \n\t" + "and %[tmp1], %[tmp1], 0x00ff00ff \n\t" + "sll %[tmp1], %[tmp1], 8 \n\t" + "or %[tmp1], %[tmp1], %[tmp0] \n\t" +#endif #endif PTR_SLL "%[tmp1], %[tmp1], 0x01 \n\t" PTR_SUBU "%[tmp1], %[tmp1], %[cabac_mask] \n\t" @@ -169,7 +185,15 @@ static av_always_inline int get_cabac_bypass_sign_mips(CABACContext *c, int val) "lhu %[tmp1], 0(%[c_bytestream]) \n\t" #else "lhu %[tmp1], 0(%[c_bytestream]) \n\t" +#if HAVE_MIPS32R2 || HAVE_MIPS64R2 "wsbh %[tmp1], %[tmp1] \n\t" +#else + "and %[tmp0], %[tmp1], 0xff00ff00 \n\t" + "srl %[tmp0], %[tmp0], 8 \n\t" + "and %[tmp1], %[tmp1], 0x00ff00ff \n\t" + "sll %[tmp1], %[tmp1], 8 \n\t" + "or %[tmp1], %[tmp1], %[tmp0] \n\t" +#endif #endif PTR_SLL "%[tmp1], %[tmp1], 0x01 \n\t" PTR_SUBU "%[tmp1], %[tmp1], %[cabac_mask] \n\t" -- 2.32.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".