Beginning of the project

1 files changed, 60 insertions, 0 deletions

diff --git a/projet.ml b/projet.ml
new file mode 100644
index 0000000..2a4c051
--- /dev/null
+++ b/projet.ml
@@ -0,0 +1,60 @@
+#load "str.cma";;
+open List;;
+(*line number*)
+type line = int
+(*register index*)
+type regidx = int
+(*register value*)
+type regval = int
+(*register*)
+type reg = Reg of regidx * regval
+(*URM instruction*)
+type urmcmd =
+|Copy of regidx * regidx
+|Jump of regidx * regidx * line
+|Succ of regidx
+|Zero of regidx
+(*instruction pointer*)
+type instptr = InstPtr of (line * urmcmd) list * (line * urmcmd) list
+(*URM*)
+type urm = {instptr : instptr; regs : reg list}
+
+exception Syntax_error
+
+let rec string_of_file f =
+        try
+                let str = input_line f
+          in str ^ " " ^ (string_of_file f)
+        with
+        | End_of_file -> ""
+
+let rec program_of_lex lex =
+        match lex with
+                |[] -> []
+                |"zero" :: arg_1 :: tail ->(Zero (int_of_string arg_1)) :: (program_of_lex tail)
+                |"succ" :: arg_1 :: tail -> (Succ (int_of_string arg_1)) :: (program_of_lex tail)
+                |"copy" :: arg_1 :: arg_2 :: tail -> (Copy ((int_of_string arg_1), (int_of_string arg_2))):: (program_of_lex tail)
+                |"jump" :: arg_1 :: arg_2 :: arg_3 :: tail ->(Jump ((int_of_string arg_1), (int_of_string arg_2),(int_of_string arg_3))):: (program_of_lex tail)
+                |_ -> raise Syntax_error
+
+let program_of_string str =
+        let lex = Str.split (Str.regexp "[\t\n(),]+") str
+        in List.iter (fun s -> print_string s; print_newline ()) lex; program_of_lex lex
+
+let instptr_mk urmcmd_list =
+        let rec aux urmcmd_list count acc  = 
+                match urmcmd_list with
+                | [] -> acc 
+                | instruction::reste -> aux reste (count + 1) ((count,instruction)::acc) 
+        in InstPtr([],rev (aux urmcmd_list 0 []))
+
+let instptr_move_up = function
+        | InstPtr(list1,[])-> InstPtr(list1,[])
+        | InstPtr(list1,instr::list2) -> InstPtr(instr::list1, list2)
+
+let instptr_get = function
+        | _,Zero(_) -> Zero(_)
+        | _,Succ(_) -> Succ(_)
+        | _,Copy(_,_) -> Copy(_,_)
+        | _,Jump(_,_,_) -> Jump(_,_,_)
+        | _ -> raise Syntax_error
\ No newline at end of file