diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..496122f
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,22 @@
+Copyright (c) 2017 Oscar Toledo G. http://nanochess.org/
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+2. 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.
+
+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.
\ No newline at end of file
diff --git a/README b/README
index 47430f6..86e0aa9 100644
--- a/README
+++ b/README
@@ -13,6 +13,8 @@ Arguments:
               label: mnemonic operand comment
     -s1       Code in three columns
               label: mnemonic+operand comment
+    -p0       Processor unknown.
+    -p1       Processor 6502 + DASM syntax (default)
     -m8       Start of mnemonic column (default)
     -o16      Start of operand column (default)
     -c32      Start of comment column (default)
@@ -21,6 +23,9 @@ Arguments:
     -a0       Align comments to nearest column
     -a1       Comments at line start are aligned
               to mnemonic (default)
+    -n4       Nesting spacing (can be any number
+              of spaces or multiple of tab size)
+    -l        Put labels in its own line
 
 Assumes all your labels are at start of line and there is space
 before mnemonic.