Joscha
b554d80aa9
A monad for nice, pure exceptions. I want to avoid working with IO exceptions as much as possible.
114 lines
3.4 KiB
Haskell
114 lines
3.4 KiB
Haskell
module Main where
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import Control.Monad
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import Control.Monad.Trans.Class
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import qualified Data.Text.IO as T
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import Options.Applicative
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import Mima.Flag
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import Mima.IO
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import Mima.Load
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import Mima.State
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import Mima.Util
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import PrintState
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data Settings = Settings
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-- General guff
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{ infile :: FilePath
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, outfile :: Maybe FilePath
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, autodiscover :: Bool
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, flagfile :: Maybe FilePath
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, symbolfile :: Maybe FilePath
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-- Run-specific guff
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, steps :: Maybe Integer
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, norun :: Bool
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-- Output format guff
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, quiet :: Bool
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, sparse :: Bool
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} deriving (Show)
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{- Command-line parameters -}
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settingsParser :: Parser Settings
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settingsParser = Settings
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<$> strArgument
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(metavar "INFILE"
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<> help "The memory dump to load and execute")
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<*> (optional . strOption)
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(long "out"
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<> short 'o'
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<> metavar "OUTFILE"
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<> help "If specified, write the memory dump to this file after execution is finished")
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<*> flag True False
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(long "autodiscover"
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<> short 'a'
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<> help "Automatically try to find the .mima-flags and .mima-symbols files corresponding to the input files")
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<*> (optional . strOption)
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(long "flags"
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<> short 'f'
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<> metavar "FLAGFILE"
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<> help "A file containing extension memory flags, specified in the .mima-flags format")
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<*> (optional . strOption)
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(long "symbols"
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<> short 's'
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<> metavar "SYMBOLFILE"
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<> help "A file containing label names and addresses, specified in the .mima-symbols format")
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<*> (optional . option auto)
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(long "steps"
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<> short 'n'
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<> metavar "N"
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<> help "How many instructions to execute (if not specified, runs until HALT or execution exception)")
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<*> flag False True
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(long "norun"
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<> short 'r'
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<> help "Don't run the MiMa. Use the initial state for all further actions. Roughly equivalent to -n 0")
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<*> flag False True
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(long "quiet"
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<> short 'q'
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<> help "Don't print the memory dump")
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<*> flag False True
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(long "sparse"
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<> short 's'
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<> help "Don't print memory locations containing only 0x000000 in the memory dump")
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opts :: ParserInfo Settings
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opts = info (helper <*> settingsParser) $ fullDesc <> failureCode 1
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{- Main logic -}
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runMima :: Settings -> MimaState -> IO MimaState
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runMima settings s =
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case steps settings of
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Nothing -> do
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putStrLn "Running until HALT or execution exception..."
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let (s', e, x) = run noFlags s
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putStrLn $ "Ran for " ++ show x ++ " steps"
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T.putStrLn $ toText e
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pure s'
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Just n -> do
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let (s', me, x) = runN noFlags n s
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putStrLn $ "Ran for " ++ show x ++ " steps"
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case me of
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Nothing -> putStrLn "Encountered no exception"
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Just e -> T.putStrLn $ toText e
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pure s'
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-- TODO exception handling
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main :: IO ()
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main = doRun $ do
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settings <- lift $ execParser opts
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lift $ putStrLn $ "Loading memdump at " ++ infile settings
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ms <- loadStateFromFile (infile settings)
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ms' <- if norun settings then pure ms else lift (runMima settings ms)
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unless (quiet settings) $ do
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lift $ putStrLn ""
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lift $ putStrLn "Dump of MiMa state:"
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lift $ printStateLn (sparse settings) ms'
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lift $ putStrLn ""
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forM_ (outfile settings) $ \path -> do
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lift $ putStrLn $ "Saving memdump at " ++ path
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saveStateToFile path ms'
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