6 import Text.Parsec.String
7 import Text.Parsec.Combinator
10 data DT_State = NoState | InData | InText deriving (Show,Eq)
14 type ValueToParse = String
20 DTF_Data Address Value Code Label Comment | -- 0;...
21 DTF_Instr Address Value Code Label Comment | -- 1;...
22 DTF_Comment Comment | -- 2;...
23 DTF_Label Label Comment Address | -- 3;...
24 -- types for intern processing
25 DTF_InstrToParse Address ValueToParse Code Label Comment |
26 DTF_SectionToDet Address Value Code Label Comment |
28 DTF_Define Label Value Comment |
31 instance Show (DTF) where
32 showsPrec n = showsDTF
34 showsDTF :: DTF -> ShowS
35 showsDTF (DTF_Data a v c l s) = (++) (datins "0" a v c l s)
36 showsDTF (DTF_Instr a v c l s) = (++) (datins "1" a v c l s)
37 showsDTF (DTF_Comment c) = (++) (printf "2;%s\n" c)
38 showsDTF (DTF_Label l c _) = (++) (printf "3;%s;%s\n" l c)
39 showsDTF (DTF_InstrToParse a v c l s) = (++) (printf "itp;%08x;%s;%s;%s;%s\n" a v c l s)
40 showsDTF (DTF_SectionToDet a v c l s) = (++) (datins "std" a v c l s)
41 showsDTF (DTF_Org a) = (++) (printf "org;%08x\n" a)
42 showsDTF (DTF_Define l a c) = (++) (printf "def;%s;%08X;%s\n" l a c)
43 showsDTF (DTF_State s) = (++) (printf "sta;%s\n" (show s))
45 datins :: String -> Address -> Value -> Code -> Label -> Comment -> String
46 datins = printf "%s;%08x;%08x;%s;%s;%s\n"
49 -- datastructure for managing labels and defines
50 type Dict = (Address,[DictElem])
51 type DictElem = (String,Word32)
53 get_elem :: String -> [DictElem] -> Word32
54 get_elem s dict = case (lookup s dict) of
55 Nothing -> error ("unknown label or define: \"" ++ s ++ "\"")
58 add_elem :: [DictElem] -> (String,Word32) -> [DictElem]
60 | s == "" = dic -- ignore empty string
61 | already_in = error ("Label or define \"" ++ s ++ "\" already exists")
62 | otherwise = (s,w):dic
64 already_in = case (lookup s dic) of
68 -- some common functions
69 parseMySpaces :: Parser String
71 ret <- many $ oneOf "\t "