diff --git a/LICENSE b/LICENSE
new file mode 100644
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,30 @@
+Copyright Author name here (c) 2017
+
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above
+      copyright notice, this list of conditions and the following
+      disclaimer in the documentation and/or other materials provided
+      with the distribution.
+
+    * Neither the name of Author name here nor the names of other
+      contributors may be used to endorse or promote products derived
+      from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
diff --git a/README.md b/README.md
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--- /dev/null
+++ b/README.md
@@ -0,0 +1,1 @@
+# hw-prim-bits
diff --git a/Setup.hs b/Setup.hs
new file mode 100644
--- /dev/null
+++ b/Setup.hs
@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain
diff --git a/app/Main.hs b/app/Main.hs
new file mode 100644
--- /dev/null
+++ b/app/Main.hs
@@ -0,0 +1,9 @@
+module Main where
+
+import Data.Monoid ((<>))
+import HaskellWorks.Prim.Bits
+
+main :: IO ()
+main = do
+  let result = pdep64 9 9
+  putStrLn $ "Result: " <> show result
diff --git a/bench/Main.hs b/bench/Main.hs
new file mode 100644
--- /dev/null
+++ b/bench/Main.hs
@@ -0,0 +1,24 @@
+module Main where
+
+import Criterion.Main
+import Data.Bits
+import Data.Monoid            ((<>))
+import Data.Word
+import HaskellWorks.Prim.Bits
+
+import qualified Data.Vector.Storable as DVS
+
+setup :: IO ()
+setup = return ()
+
+benchPdep :: [Benchmark]
+benchPdep =
+  [ env setup $ \bv -> bgroup "bits"
+    [ bench "pdep64"    (whnf (pdep64 0) (0 :: Word64))
+    , bench "popCount"  (whnf popCount   (0 :: Word64))
+    , bench "sin"       (whnf sin        (0 :: Double))
+    ]
+  ]
+
+main :: IO ()
+main = defaultMain benchPdep
diff --git a/cbits/bits.c b/cbits/bits.c
new file mode 100644
--- /dev/null
+++ b/cbits/bits.c
@@ -0,0 +1,15 @@
+#include <x86intrin.h>
+
+unsigned long long pdep64(
+  unsigned long long arga,
+  unsigned long long argb)
+{
+  unsigned long long result;
+
+  __asm__ __volatile__("pdepl  %%ecx,%%ebx,%%eax"
+                       :"=a"(result)
+                       :"a"(result), "b"(arga), "c"(argb)
+                       );
+
+  return result;
+}
diff --git a/cbits/bits.h b/cbits/bits.h
new file mode 100644
--- /dev/null
+++ b/cbits/bits.h
@@ -0,0 +1,3 @@
+unsigned long long pdep64(
+  unsigned long long,
+  unsigned long long);
diff --git a/hw-prim-bits.cabal b/hw-prim-bits.cabal
new file mode 100644
--- /dev/null
+++ b/hw-prim-bits.cabal
@@ -0,0 +1,58 @@
+name:                hw-prim-bits
+version:             0.1.0.0
+synopsis:            Primitive support for bit manipulation
+description:         Please see README.md
+homepage:            https://github.com/githubuser/hw-prim-bits#readme
+license:             BSD3
+license-file:        LICENSE
+author:              Author name here
+maintainer:          example@example.com
+copyright:           2017 Author name here
+category:            Web
+build-type:          Simple
+extra-source-files:  README.md
+cabal-version:       >= 1.10
+
+library
+  hs-source-dirs:       src
+  exposed-modules:      HaskellWorks.Prim.Bits
+  build-depends:        base >= 4.7 && < 5
+  default-language:     Haskell2010
+  C-sources:            cbits/bits.c
+  Include-dirs:         cbits
+  Install-includes:     bits.h
+
+executable hw-prim-bits-exe
+  hs-source-dirs:      app
+  main-is:             Main.hs
+  ghc-options:         -threaded -rtsopts -with-rtsopts=-N
+  build-depends:       base
+                     , hw-prim-bits
+  default-language:    Haskell2010
+
+test-suite hw-prim-bits-test
+  type:                exitcode-stdio-1.0
+  hs-source-dirs:      test
+  main-is:             Spec.hs
+  build-depends:       base
+                     , hw-prim-bits
+  ghc-options:         -threaded -rtsopts -with-rtsopts=-N
+  default-language:    Haskell2010
+
+benchmark bench
+    Type: exitcode-stdio-1.0
+    HS-Source-Dirs: bench
+    Main-Is: Main.hs
+    if flag(sse42)
+      GHC-Options: -Wall -O2 -msse4.2
+    else
+      GHC-Options: -Wall -O2
+    Default-Language: Haskell2010
+    Build-Depends:      base                          >= 4          && < 5
+                      , criterion
+                      , hw-prim-bits
+                      , vector
+
+source-repository head
+  type:     git
+  location: https://github.com/githubuser/hw-prim-bits
diff --git a/src/HaskellWorks/Prim/Bits.hs b/src/HaskellWorks/Prim/Bits.hs
new file mode 100644
--- /dev/null
+++ b/src/HaskellWorks/Prim/Bits.hs
@@ -0,0 +1,5 @@
+module HaskellWorks.Prim.Bits where
+
+import Data.Word
+
+foreign import ccall unsafe "bits.h" pdep64 :: Word64 -> Word64 -> Word64
diff --git a/test/Spec.hs b/test/Spec.hs
new file mode 100644
--- /dev/null
+++ b/test/Spec.hs
@@ -0,0 +1,2 @@
+main :: IO ()
+main = putStrLn "Test suite not yet implemented"