+{- `Deep Thought', a softcore CPU implemented on a FPGA
+
+ Copyright (C) 2010 Markus Hofstaetter <markus.manrow@gmx.at>
+ Copyright (C) 2010 Martin Perner <e0725782@student.tuwien.ac.at>
+ Copyright (C) 2010 Stefan Rebernig <stefan.rebernig@gmail.com>
+ Copyright (C) 2010 Manfred Schwarz <e0725898@student.tuwien.ac.at>
+ Copyright (C) 2010 Bernhard Urban <lewurm@gmail.com>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. -}
+
module Expr_eval (expr, testExpr) where
import DTFormat
import Text.ParserCombinators.Parsec.Language
import System.IO
import Data.Word
+import Data.List
import Data.Bits
lexer :: P.TokenParser ()
decimal = P.decimal lexer
hexadecimal = P.hexadecimal lexer
-parens = P.parens lexer
reservedOp = P.reservedOp lexer
expr :: [DictElem] -> Parser Word32
factor :: [DictElem] -> Parser Word32
factor d =
do {
- parens (expr d);
+ char '('; r <- expr d; char ')';
+ return r
} <|> do {
-- define or label
s <- foldl1 (<|>) (fmap (try . string . fst) d);