*** empty log message ***

1 files changed, 180 insertions, 120 deletions

diff --git a/lib/simulator.c b/lib/simulator.c
index d1e5c7f..4373d0d 100644
--- a/lib/simulator.c
+++ b/lib/simulator.c
@@ -17,7 +17,6 @@
 
 
 
-// a modifier : Adresse switch 0 c faux
 // CALL RET ??? 
 // verifier le reste
 
@@ -37,32 +36,39 @@ void IncrementeCompteurOrdinal(void)
 
 Uint32 Adresse(Uint32 u, Uint32 instruction)
 {
+	Uint32 tmp;
+
 	switch (champ(u, 2)) {
 	case 0:
-		return (LireRegistre(Champ3(instruction)));	/* directement registre A CORRIGER */
+		exception(1, _("Adresse: Call With Invalid r/m Field State ( r/m=00 )"));
+		return(0);
 	case 1:
+		tmp = LireInstruction();
 		IncrementeCompteurOrdinal();
-		return (LireInstruction());
+		return (tmp);
 	case 2:
 		return (LireRegistre(Champ3(instruction)));	/* Adresse dans registre */
 	case 3:
+		tmp = LireRegistre(Champ3(instruction)) + LireInstruction();	/* Adresse dans registre + decalage de nouvelle instruction */
 		IncrementeCompteurOrdinal();
-		return (LireRegistre(Champ3(instruction)) + LireInstruction());	/* Adresse dans registre + decalage de nouvelle instruction */
+		return (tmp);
 	default:
 		exception(1, _("Adresse: Unmatched Addr Field"));
+		return(0);
 	}
 }
 
+
 void Initialisation(void)
 {
 	int i;
 
 	for (i = 0; i < TAILLE_MEMOIRE; i++)
 		Reset(&memoire_principale[i]);
-	EcrireRegistrePP(ADD_PP);
+	EcrireRegistreSP(ADD_SP);
 }
 
-void Decode(Uint32 instruction)
+void DecodeExec(Uint32 instruction, Uint32 entrypoint)
 {
 	Uint32 champ_registre_resultat, val1, val2, resultat;
 
@@ -77,8 +83,8 @@ void Decode(Uint32 instruction)
 				if (ValeurBit(Extension(instruction), 0) == 0)
 					val2 = LireRegistre(Champ3(instruction));	/* Deuxième entier, stocké dans un registre, qui va etre utilisé dans l'opération */
 				else {
-					IncrementeCompteurOrdinal();
 					val2 = LireInstruction();	/* Deuxième entier, stocké après l'instruction, qui va etre utilisé dans l'opération */
+					IncrementeCompteurOrdinal();
 				}
 				if (ValeurBit(Extension(instruction), 1) == 0)	/* Teste si l'opération est signée ou pas */
 					switch (Opcode(instruction)) {
@@ -152,7 +158,7 @@ void Decode(Uint32 instruction)
 						case 3:
 							if (Parity() == 1)
 								goto fin;
-						}		
+						}
 					} else {	/* Negation du test */
 						switch (champ(Extension(instruction) >> 2, 4)) {	/* teste les bits 2 et 3 */
 						case 0:
@@ -171,16 +177,14 @@ void Decode(Uint32 instruction)
 					}
 				}
 				/* Pas de MOV conditionnel */
-				if (ValeurBit(Extension(instruction), 1) == 0)	{/* Mov arg1 arg2 */
-					if (ValeurBit(Extension(instruction), 0) == 0)	{/* arg2 = reg */
-						if (champ(Champ1(instruction), 2) == 0)	{/* r/m de arg1 = 0 */
-							EcrireRegistre(Champ3(instruction),
-								       LireRegistre(Champ2(instruction)));
+				if (ValeurBit(Extension(instruction), 1) == 0) {	/* Mov arg1 arg2 */
+					if (ValeurBit(Extension(instruction), 0) == 0) {	/* arg2 = reg */
+						if (champ(Champ1(instruction), 2) == 0) {	/* r/m de arg1 = 0 */
+							EcrireRegistre(Champ3(instruction), LireRegistre(Champ2(instruction)));
 						} else {
-							ST(Adresse(Champ1(instruction), instruction),
-							   LireRegistre(Champ2(instruction)));
-						}	   
-					} else {/* arg2 = imm32 */ 
+							ST(Adresse(Champ1(instruction), instruction), LireRegistre(Champ2(instruction)));
+						}
+					} else {	/* arg2 = imm32 */
 						if (champ(Champ1(instruction), 2) == 0) {	/* r/m de arg1 = 0 */
 							EcrireRegistre(Champ3(instruction), LireInstruction());
 							IncrementeCompteurOrdinal();
@@ -188,114 +192,170 @@ void Decode(Uint32 instruction)
 							ST(Adresse(Champ1(instruction), instruction), LireInstruction());
 							IncrementeCompteurOrdinal();
 						}
-					}	
-				 } else {
- 	 				if (ValeurBit(Extension(instruction), 0) == 0)	{/* arg2 = reg */
-						if (champ(Champ1(instruction), 2) == 0)	{/* r/m de arg1 = 0 */
+					}
+				} else {
+					if (ValeurBit(Extension(instruction), 0) == 0) {	/* arg2 = reg */
+						if (champ(Champ1(instruction), 2) == 0) {	/* r/m de arg1 = 0 */
 							EcrireRegistre(Champ2(instruction), LireRegistre(Champ3(instruction)));
-							
+
 						} else {
-							EcrireRegistre(Champ2(instruction),
-							 LD(Adresse(Champ1(instruction), instruction)));
-						}	 
-					} else	{/* arg2 = imm32 */
-						exception(1,_("MOV: Memory to Memory Forbidden On This Type Of Processor"));
-					}	
+							EcrireRegistre(Champ2(instruction), LD(Adresse(Champ1(instruction), instruction)));
+						}
+					} else {	/* arg2 = imm32 */
+						exception(1, _("MOV: Memory to Memory Forbidden On This Type Of Processor"));
+					}
 				}
 			      fin:
-							       break;
-							       }
-		case 9:				       {	/*  NOP */
-							       /*  Instruction nulle   */
-							       break;
-							       }
-		case 10:	/*  J   */
-		case 11:				       {
-							       int test1, test2;
+				break;
+			}
+		case 9:{	/*  NOP */
+				/*  Instruction nulle   */
+				break;
+			}
+		case 10:	/*  J[cond]   */
+		case 11:{
+				int test1, test2;
 
-							       switch (champ(Extension(instruction), 4)) {
-		case 0:
-							       test1 =
-							       LireRegistre(Champ1(instruction)) ==
-		LireRegistre(Champ2(instruction)); break; case 1:
-							       test1 =
-							       LireRegistre(Champ1(instruction)) !=
-		LireRegistre(Champ2(instruction)); break; case 2:
-							       test1 =
-							       LireRegistre(Champ1(instruction)) <
-		LireRegistre(Champ2(instruction)); break; case 3:
-							       test1 =
-							       LireRegistre(Champ1(instruction)) <=
-							       LireRegistre(Champ2(instruction)); break;}
-							       switch (champ(Extension(instruction) >> 2, 4)) {
-		case 0:
-		test2 = Overflow(); break; case 1:
-		test2 = Zero(); break; case 2:
-		test2 = Sign(); break; case 3:
-							       test2 = Parity(); break;}
-							       switch (champ(Extension(instruction) >> 4, 4)) {
-		case 0:
-		test1 = test1; break; case 1:
-		test1 = test1 || test2; break; case 2:
-		test1 = test1 && !test2; break; case 3:
-							       test1 = test1 || !test2; break;}
-							       if (test1) {
-							       IncrementeCompteurOrdinal();
-							       if (Opcode(instruction) ==
-								   10) EcrireRegistrePC(LireInstruction());
-							       else
-							       EcrireRegistrePC(AdditionNonSigne
-										(LireRegistrePC(), LireInstruction()));}
-							       break;}
-		case (12):	/*  JMP *//* Kris Kross */
+				switch (champ(Extension(instruction), 4)) {
+				case 0:
+					if (Champ1(instruction) == Champ2(instruction)) {
+						test1 = 1;
+					} else {
+						test1 = LireRegistre(Champ1(instruction)) == LireRegistre(Champ2(instruction));
+					}
+					break;
+				case 1:
+					test1 = LireRegistre(Champ1(instruction)) != LireRegistre(Champ2(instruction));
+					break;
+				case 2:
+					test1 = LireRegistre(Champ1(instruction)) < LireRegistre(Champ2(instruction));
+					break;
+				case 3:
+					test1 = LireRegistre(Champ1(instruction)) <= LireRegistre(Champ2(instruction));
+					break;
+				}
+				switch (champ(Extension(instruction) >> 2, 4)) {
+				case 0:
+					test2 = Overflow();
+					break;
+				case 1:
+					test2 = Zero();
+					break;
+				case 2:
+					test2 = Sign();
+					break;
+				case 3:
+					test2 = Parity();
+					break;
+				}
+				switch (champ(Extension(instruction) >> 4, 4)) {
+				case 0:
+					test1 = test1;
+					break;
+				case 1:
+					test1 = test1 || test2;
+					break;
+				case 2:
+					test1 = test1 && !test2;
+					break;
+				case 3:
+					test1 = test1 || !test2;
+					break;
+				}
+				if (test1) { Uint32 tmp;
+					tmp=LireInstruction();
+					EcrireRegistrePC(tmp);
+				}
+				break;
+			}
+		case (12):	/*  JMP */
 		case (13):
-							       if (ValeurBit(Extension(instruction), 0) == 0) {
-							       ;	/* RET */
-							       }
-							       else
-							       if (ValeurBit(Extension(instruction), 1) == 0);	/* JMP */
-							       else;	/* CALL */
-		break; case 14:			       {	/*  PUSH    */
-							       Uint32 val;	/* valeur qui va etre stockée */
-							       EcrireRegistrePP(SoustractionNonSigne(LireRegistrePP(), 1));	/* On pointe sur un emplacement vide */
-							       if (ValeurBit(Extension(instruction), 0) == 0)
-							       val = LireRegistre(Champ1(instruction));
-							       else {
-							       IncrementeCompteurOrdinal(); val = LireInstruction();}
-							       ST(LireRegistrePP(), val); break;}
-		case 15:				       {	/*  POP */
-							       EcrireRegistre(Champ1(instruction), LireRegistrePP());
-							       EcrireRegistrePP(AdditionNonSigne(LireRegistrePP(), 1));
-							       break;}
-		case 127:				       {	/*  HALT-RESET  */
-							       if (ValeurBit(Extension(instruction), 0))
-							       getc(stdin);	/* Halt */
-							       else
-							       Initialisation();	/* Reset */
-							       break;}
-		default:				       {
-							       printf("soja");}
-							       }
-							       }
-							       }
-							       void Traitement(void) {
-							       Uint32 instruction; while (!0) {
-							       instruction = LireInstruction();
-							       Decode(instruction); IncrementeCompteurOrdinal();}
-							       }
+			if (ValeurBit(Extension(instruction), 0) == 0) {
+					/* RET */
+				EcrireRegistreSP(AdditionNonSigne(LireRegistreSP(),Champ1(instruction)));
+				EcrireRegistreSP(AdditionNonSigne(LireRegistreSP(), 1));
+				EcrireRegistrePC(LD(LireRegistreSP()));
+					
+			} else if (ValeurBit(Extension(instruction), 1) == 0) {	/* JMP */
+				if (ValeurBit(Extension(instruction), 2) == 0) {
+					EcrireRegistrePC(LireRegistre(Champ1(instruction)));
+				} else {
+					EcrireRegistrePC(LireInstruction());
+				}
+			} else {	/* CALL */
+				ST(LireRegistreSP(),LireRegistrePC());
+					EcrireRegistreSP(SoustractionNonSigne(LireRegistreSP(),1));
+				if (ValeurBit(Extension(instruction), 2) == 0) {
+					EcrireRegistrePC(LireRegistre(Champ1(instruction)));
+				} else {
+					EcrireRegistrePC(LireInstruction());
+				}
+			}
+			break;
+		case 14:{	/*  PUSH    */
+				Uint32 val;	/* valeur qui va etre stockée */
 
-							       void AfficheReg(void)	//  affiche reg
-							       {
-							       int i, j; for (i = 0; i <= 3; i++) {
-							       for (j = 1; j <= 8; j++) {
-							       printf("   R%02d   ", (i * 8 + j));}
-							       printf("\n"); for (j = 1; j <= 8; j++) {
-							       printf("%08lX ", (registre[i * 8 + j - 1]));}
-							       printf("\n");}
-							       printf
-							       ("Rg: %08lX  | Rd: %08lX | Flag: %08lX | PC: %08lX\n",
-								LireRegistreRG(), LireRegistreRD(), LireRegistreFLAG(),
-								registre[REG_PC]); printf("\n");}
+				if (ValeurBit(Extension(instruction), 0) == 0)
+					val = LireRegistre(Champ1(instruction));
+				else {
+					val = LireInstruction();
+					IncrementeCompteurOrdinal();
+				}
+				ST(LireRegistreSP(), val);
+				EcrireRegistreSP(SoustractionNonSigne(LireRegistreSP(), 1));
+				break;
+			}
+		case 15:{	/*  POP */
+				EcrireRegistreSP(AdditionNonSigne(LireRegistreSP(), 1));
+				EcrireRegistre(Champ1(instruction), LD(LireRegistreSP()));
+				
+				break;
+			}
+		case 127:{	/*  HALT-RESET  */
+				if (ValeurBit(Extension(instruction), 0))
+					exit(0);	/* Halt *//* *******************FIXMI********************* */
+				else
+					ResetRegistres();
+				Traitement(entrypoint);	/* Reset *//* ************FIXMI************** */
+				break;
+			}
+		default:{
+				exception(1, _("DecodeExec: Invalid Opcode"));
+			}
+		}
+	}
+}
+void Traitement(Uint32 entrypoint)
+{				/* ******************** FIXMI ************************* */
+	Uint32 instruction;
+
+	EcrireRegistrePC(entrypoint);
+	while (!0) {
+		instruction = LireInstruction();
+		IncrementeCompteurOrdinal();
+			DecodeExec(instruction, entrypoint);
+	}
+}
+
+void AfficheReg(void)		//  affiche reg
+{
+	int i, j;
+
+	for (i = 0; i <= 3; i++) {
+		for (j = 1; j <= 8; j++) {
+			printf("   R%02d   ", (i * 8 + j));
+		}
+		printf("\n");
+		for (j = 1; j <= 8; j++) {
+			printf("%08lX ", (registre[i * 8 + j - 1]));
+		}
+		printf("\n");
+	}
+	printf("Rg: %08lX  | Rd: %08lX | Flag: %08lX | PC: %08lX\n", LireRegistreRG(), LireRegistreRD(), LireRegistreFLAG(), registre[REG_PC]);
+	printf("\n");
+}
 
-							       void Debogueur(void) {
-							       AfficheReg();}
+void Debogueur(void)
+{
+	AfficheReg();
+}