Almost done with restructuring.

.gitattributes

@@ -0,0 +1,15 @@
+ar-lib linguist-vendored
+ltmain.sh linguist-vendored
+compile linguist-vendored
+config.guess linguist-vendored
+config.sub linguist-vendored
+depcomp linguist-vendored
+install-sh linguist-vendored
+missing linguist-vendored
+aclocal.m4 linguist-vendored
+m4/libtool.m4 linguist-vendored
+m4/ltoptions.m4 linguist-vendored
+m4/ltsugar.m4 linguist-vendored
+m4/ltversion.m4 linguist-vendored
+m4/lt~obsolete.m4 linguist-vendored
+Makefile.in linguist-vendored

Makefile.am

@@ -1,25 +1,49 @@
 lib_LTLIBRARIES = lib/libtblis.la
 lib_libtblis_la_SOURCES = \
 	\
-    src/1v/add.cxx \
-    src/1v/dot.cxx \
-    src/1v/reduce.cxx \
-    src/1v/scale.cxx \
-    src/1v/set.cxx \
+    src/iface/1v/add.cxx \
+    src/iface/1v/dot.cxx \
+    src/iface/1v/reduce.cxx \
+    src/iface/1v/scale.cxx \
+    src/iface/1v/set.cxx \
     \
-    src/1m/add.cxx \
-    src/1m/dot.cxx \
-    src/1m/reduce.cxx \
-    src/1m/scale.cxx \
-    src/1m/set.cxx \
+    src/iface/1m/add.cxx \
+    src/iface/1m/dot.cxx \
+    src/iface/1m/reduce.cxx \
+    src/iface/1m/scale.cxx \
+    src/iface/1m/set.cxx \
 	\
-    src/1t/add.cxx \
-    src/1t/dot.cxx \
-    src/1t/reduce.cxx \
-    src/1t/scale.cxx \
-    src/1t/set.cxx \
+    src/iface/1t/add.cxx \
+    src/iface/1t/dot.cxx \
+    src/iface/1t/reduce.cxx \
+    src/iface/1t/scale.cxx \
+    src/iface/1t/set.cxx \
     \
-    src/3m/mult.cxx \
+    src/iface/3m/mult.cxx \
+    \
+    src/iface/3t/mult.cxx \
+	\
+    src/internal/1v/add.cxx \
+    src/internal/1v/dot.cxx \
+    src/internal/1v/reduce.cxx \
+    src/internal/1v/scale.cxx \
+    src/internal/1v/set.cxx \
+    \
+    src/internal/1m/add.cxx \
+    src/internal/1m/dot.cxx \
+    src/internal/1m/reduce.cxx \
+    src/internal/1m/scale.cxx \
+    src/internal/1m/set.cxx \
+	\
+    src/internal/1t/add.cxx \
+    src/internal/1t/dot.cxx \
+    src/internal/1t/reduce.cxx \
+    src/internal/1t/scale.cxx \
+    src/internal/1t/set.cxx \
+    \
+    src/internal/3m/mult.cxx \
+    \
+    src/internal/3t/mult.cxx \
     \
     src/configs/configs.cxx \
     \