module DTFormat where
+import Numeric
import Data.Word
+import Data.Char
import Text.Printf
+import Text.Parsec
+import Text.Parsec.String
+import Text.Parsec.Combinator
+import Text.Parsec.Expr
+import Text.ParserCombinators.Parsec.Token
+import Text.ParserCombinators.Parsec.Expr
+import Control.Monad
+
+data DT_State = NoState | InData | InText deriving (Show,Eq)
type Address = Word32
type Value = Word32
+type Repeat = Word32
type ValueToParse = String
type Code = String
type Label = String
type Comment = String
data DTF =
- DTF_Data Address Value Code Label Comment |
- DTF_Instr Address Value Code Label Comment |
- DTF_Comment Comment |
- DTF_Label Label |
+ DTF_Data Address Value Code Label Comment | -- 0;...
+ DTF_Instr Address Value Code Label Comment | -- 1;...
+ DTF_Comment Comment | -- 2;...
+ DTF_Label Label Comment Address | -- 3;...
-- types for intern processing
- DTF_ToParse Address ValueToParse Code Label Comment |
- DTF_Org Address
+ DTF_InstrToParse Address ValueToParse Code Label Comment |
+ DTF_SectionToDet Address Value Code Label Comment |
+ DTF_Org Address |
+ DTF_Define Label Value Comment |
+ DTF_Fill Repeat Value Label Code Comment |
+ DTF_State DT_State
instance Show (DTF) where
showsPrec n = showsDTF
showsDTF (DTF_Data a v c l s) = (++) (datins "0" a v c l s)
showsDTF (DTF_Instr a v c l s) = (++) (datins "1" a v c l s)
showsDTF (DTF_Comment c) = (++) (printf "2;%s\n" c)
-showsDTF (DTF_Label l) = (++) (printf "3;%s\n" l)
-showsDTF (DTF_ToParse a v c l s) = (++) (printf "lulz\n")
-
+showsDTF (DTF_Label l c _) = (++) (printf "3;%s;%s\n" l c)
+showsDTF (DTF_InstrToParse a v c l s) = (++) (printf "itp;%08x;%s;%s;%s;%s\n" a v c l s)
+showsDTF (DTF_SectionToDet a v c l s) = (++) (datins "std" a v c l s)
+showsDTF (DTF_Org a) = (++) (printf "org;%08x\n" a)
+showsDTF (DTF_Define l a c) = (++) (printf "def;%s;%08x;%s\n" l a c)
+showsDTF (DTF_Fill r v code l c) = (++) (printf "fill;%08x;%08x;%s;%s;%s\n" r v code l c)
+showsDTF (DTF_State s) = (++) (printf "sta;%s\n" (show s))
datins :: String -> Address -> Value -> Code -> Label -> Comment -> String
datins = printf "%s;%08x;%08x;%s;%s;%s\n"
+tobin :: Value -> String
+tobin v = reverse $ take 32 $ reverse $ (['0' | _<-[0..32]]) ++ (showIntAtBase 2 (chr. ((+)0x30)) v "")
+
+showsDTFBase :: DTF -> Int -> ShowS
+showsDTFBase (DTF_Data a v c l s) 2 = (++) (datinsBin "0" a (tobin v) c l s)
+showsDTFBase (DTF_Instr a v c l s) 2 = (++) (datinsBin "1" a (tobin v) c l s)
+showsDTFBase d _ = showsDTF d
+
+datinsBin :: String -> Address -> String -> Code -> Label -> Comment -> String
+datinsBin = printf "%s;%08x;%s;%s;%s;%s\n"
+
+-- datastructure for managing labels and defines
+type Dict = (Address,[DictElem])
+type DictElem = (String,Word32)
+
+get_elem :: String -> [DictElem] -> Word32
+get_elem s dict = case (lookup s dict) of
+ Nothing -> error ("unknown label or define: \"" ++ s ++ "\"")
+ Just z -> z
+
+add_elem :: [DictElem] -> (String,Word32) -> [DictElem]
+add_elem dic (s,w)
+ | s == "" = dic -- ignore empty string
+ | already_in = error ("Label or define \"" ++ s ++ "\" already exists")
+ | otherwise = (s,w):dic
+ where
+ already_in = case (lookup s dic) of
+ Just _ -> True
+ Nothing -> False
+
+-- some common functions
+parseMySpaces :: Parser String
+parseMySpaces = do
+ ret <- many $ oneOf "\t "
+ return $ ret