diff --git a/README.md b/README.md
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+++ b/README.md
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 TTK-91 is a assembly-like language made for a Computer organization course in Helsinki University. 
 The course used this language to teach how programming languages work, how code is compiled into machine language from a basic assembly-like language.
 This language is now retiring and as a tribute, I thought I would write a proper CLI compiler for the language in Haskell.
+
+
+## Todo
+* Implement
+	* registers
+	* memory
+	* LOAD, STORE
+	* arithmetic operations
+	* comparison
+	* jumps
+	* Stack + operators
+	* System calls
+	* instruction translation to binary and hex
+	* compiler configuration (stdin etc.)
diff --git a/CHANGELOG.md b/haskell/CHANGELOG.md
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diff --git a/LICENSE b/haskell/LICENSE
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diff --git a/Setup.hs b/haskell/Setup.hs
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diff --git a/app/Main.hs b/haskell/app/Main.hs
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diff --git a/docs/tkk91.md b/haskell/docs/tkk91.md
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diff --git a/package.yaml b/haskell/package.yaml
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diff --git a/src/Lib.hs b/haskell/src/Lib.hs
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diff --git a/haskell/src/Register.hs b/haskell/src/Register.hs
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+++ b/haskell/src/Register.hs
@@ -0,0 +1,3 @@
+module Register
+    where
+		
diff --git a/stack.yaml b/haskell/stack.yaml
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diff --git a/haskell/stack.yaml.lock b/haskell/stack.yaml.lock
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+# This file was autogenerated by Stack.
+# You should not edit this file by hand.
+# For more information, please see the documentation at:
+#   https://docs.haskellstack.org/en/stable/lock_files
+
+packages: []
+snapshots:
+- completed:
+    sha256: 7b975b104cb3dbf0c297dfd01f936a4d2ee523241dd0b1ae960522b833fe3027
+    size: 714096
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/22/7.yaml
+  original:
+    url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/lts/22/7.yaml
diff --git a/test/Spec.hs b/haskell/test/Spec.hs
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diff --git a/ttk91-compiler.cabal b/haskell/ttk91-compiler.cabal
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