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-rw-r--r--src/video_core/shader/decode/bfe.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/video_core/shader/decode/bfe.cpp b/src/video_core/shader/decode/bfe.cpp
index 911d53657..39587e0df 100644
--- a/src/video_core/shader/decode/bfe.cpp
+++ b/src/video_core/shader/decode/bfe.cpp
@@ -36,6 +36,9 @@ u32 ShaderIR::DecodeBfe(NodeBlock& bb, u32 pc) {
const bool is_signed = instr.bfe.is_signed;
+ // using reverse parallel method in
+ // https://graphics.stanford.edu/~seander/bithacks.html#ReverseParallel
+ // note for later if possible to implement faster method.
if (instr.bfe.brev) {
const auto swap = [&](u32 s, u32 mask) {
Node v1 =