git a/libavcodec/x86/hevc_res_add.asm b/libavcodec/x86/hevc_res_add.asm
new file mode 100644
index 000..e020e1f
--- /dev/null
+++ b/libavcodec/x86/hevc_res_add.asm
@@ -0,0 +1,385 @@
+; /*
+; * Provide SIMD optimizations for transform_add functions for HEVC decoding
+; * Copyright (c) 2014 Pierre-Ed
/null
+++ b/libavcodec/x86/hevc_res_add.asm
@@ -0,0 +1,396 @@
+; /*
+; * Provide SSE optimizations for transform_add functions for HEVC decoding
+; * Copyright (c) 2014 Pierre-Edouard LEPERE
+; *
+; * This file is part of FFmpeg.
+; *
+; * FFmpeg is free software; you can redistribute it a
+++ b/libavcodec/x86/hevc_res_add.asm
@@ -0,0 +1,454 @@
+; /*
+; * Provide intrinsics for transform_add functions for HEVC decoding
+; * Copyright (c) 2014 Pierre-Edouard LEPERE
+; *
+; * This file is part of FFmpeg.
+; *
+; * FFmpeg is free software; you can redistribute it and/or
+; * modify it
