From c2a0688087a91dba700e8a6a1cdd1c52b8b8397e Mon Sep 17 00:00:00 2001
From: Adam NAILI
Date: Fri, 20 Apr 2018 19:44:04 +0200
Subject: urm_run working + a lot of subfunctionnalities

---
 projet.ml | 44 ++++++++++++++++++++++++++------------------
 1 file changed, 26 insertions(+), 18 deletions(-)

diff --git a/projet.ml b/projet.ml
index 6fd13ea..d2b66ae 100644
--- a/projet.ml
+++ b/projet.ml
@@ -72,34 +72,42 @@ let instptr_string instptr =
 	in try aux (instptr_get instptr) with
 		| _ -> "null"
 
+let instptr_end = function
+	| InstPtr(_,[]) -> true
+	| _ -> false
 
-let reg_idx = function
-	|	Reg(a,b) -> a
+(*Jump ne marche pas dans le cas ou il jump trop loin après la fin*)
+let rec instptr_jump ptr offset =
+if offset = 0 then ptr else
+	if offset > 0 then instptr_jump (instptr_move_up ptr) (offset-1)
+	else instptr_jump (instptr_move_down ptr) (offset+1)
 
-let reg_val = function
-	|	Reg(a,b) -> b
 
-let reg_compar reg1 reg2 = (reg_val reg1) - (reg_val reg2)
+let reg_idx (Reg(idx, _)) = idx
+
+let reg_val (Reg(_, value)) = value
 
-let regs_get reglist idx =
-	let rec aux = function
-		| [] -> failwith "Register not found"
-		| Reg(i,v)::tail when i = idx -> v
-		| Reg(_,_)::tail -> aux tail
-	in aux reglist
+let reg_compar reg1 reg2 = (reg_val reg1) - (reg_val reg2)
 
-let regs_exists regs idx = List.exists (fun (Reg(x,_)) -> x = idx) regs
+let regs_get reglist idx = List.find (fun (Reg(x,v)) -> x=idx) reglist |> reg_val
 
-(*TODO: Function of register manipulation: create a register or modify an existent register (remove + create?)*)
+let regs_set reglist index value = Reg(index,value)::(List.filter (fun (Reg(x,v))-> x!=index) reglist)
 
+let urm_move_down urm = {instptr = (instptr_move_down urm.instptr); regs = urm.regs}
 
+(*TODO: Verifier pour JUMP que a et b sont deux registres initialisés*)
 let urm_apply urm =
 	let aux = function
-		| _,Zero(a) -> urm.regs
-	in aux (instptr_get urm.instptr)
-
-let urm_run urm =
-	match urm with
+		| _,Zero(a) -> {instptr = urm.instptr ; regs = regs_set (urm.regs) a 0} |> urm_move_down
+		| _,Copy(a,b) when a!=b -> {instptr = urm.instptr ; regs = regs_set urm.regs a (regs_get urm.regs b)} |> urm_move_down
+		| _,Copy(a,b) -> failwith "Copy from one register to itself"
+		| _,Succ(a) -> {instptr = urm.instptr ; regs = regs_set urm.regs a ((regs_get urm.regs a)+1)} |> urm_move_down
+		| _,Jump(a,b,c) when (regs_get urm.regs a)=(regs_get urm.regs b)-> {instptr = (instptr_jump urm.instptr (fst (instptr_get urm.instptr) - c)); regs = urm.regs}
+		| _,_-> {instptr = urm.instptr; regs = urm.regs} |> urm_move_down
+	in if instptr_end urm.instptr then urm else aux (instptr_get urm.instptr)
+
+let rec urm_run = function
 	| {instptr = InstPtr(_,[]); regs = reg_list } -> reg_list
+	| urm -> urm_apply urm |> urm_run
 
 let urm_mk cmd_list reg_list = {instptr = (instptr_mk cmd_list) ; regs = reg_list}
-- 
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