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diff --git a/src/Device.hs b/src/Device.hs
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+module Machine where
+
+import Data.Word (Word32, Word16, Word8)
+
+
+data DeviceRequest = DeviceGetByte Long
+ | DeviceGetWord Long
+ | DeviceGetLong Long
+ | DeviceSetByte Long Word8
+ | DeviceSetWord Long Word16
+ | DeviceSetLong Long Word32
+
+checkInteruptsFromDevices :: Emulator ()
+checkInteruptsFromDevices = putStrLn "blah-blah"