Added operations

Makefile

@@ -5,7 +5,7 @@ BIN=out
 CC=gcc
 CFLAGS=-Wall -g
 
-OBJ=yacc.tab.o lex.yy.o table.o
+OBJ=yacc.tab.o lex.yy.o table.o operations.o
 
 all: $(BIN)
 	@touch testFile # to prevent an error in case of deletion

operations.h

@@ -0,0 +1,47 @@
+//
+// Created by chepycou on 4/14/23.
+//
+
+#ifndef PROJET_SYSTEMES_INFORMATIQUES_OPERATIONS_H
+#define PROJET_SYSTEMES_INFORMATIQUES_OPERATIONS_H
+
+/*prints the ASM instruction for the addition computation
+ * and returns the address of the temporary variable*/
+int operation_add(int addr1, int addr2);
+
+/*prints the ASM instruction for the subtraction computation
+ * and returns the address of the temporary variable*/
+int operation_sub(int addr1, int addr2);
+
+/*prints the ASM instruction for the multiplication computation
+ * and returns the address of the temporary variable*/
+int operation_mul(int addr1, int addr2);
+
+/*prints the ASM instruction for the integer division computation
+ * and returns the address of the temporary variable*/
+int operation_divInt(int addr1, int addr2);
+
+/*prints the ASM instruction for the remainder computation
+ * and returns the address of the temporary variable*/
+int operation_divRem(int addr1, int addr2);
+
+/*prints the ASM instruction for the affection of a variable
+ *  EX :
+ *      a = 2;
+ */
+void operation_afc_nb(int addr, int value);
+
+/*prints the ASM instruction for the affection of a temporary variable
+ *  EX :
+ *      "1_TEMP = 2"
+ * and returns the address of the temp variable*/
+int operation_afc_nb_tmp(int value);
+
+/*prints the ASM instruction for the affection of a temporary variable
+ *  EX :
+ *      a = b;
+ */
+void operation_afc_addr(int addr1, int addr2);
+
+
+#endif //PROJET_SYSTEMES_INFORMATIQUES_OPERATIONS_H

table.c

@@ -5,6 +5,7 @@
 #define VERBOSITY 1 // 1 -> displays the table, 0 no display
 
 int memorySizes[2] = {1,1};
+int tempCounter = 0;
 
 /*At the start of the execution : the whole array is empty*/
 static Symbol* symbolTable;
@@ -40,7 +41,7 @@ int getOffset(char* name){
 /* Returns the structure with this name */
 Symbol getStruct(char* name){
     for(int i=0; i < currentIndex; i++){
-        if (symbolTable[i].name == name){
+        if (strcmp(symbolTable[i].name, name) == 0){
             return symbolTable[i];
         }
     }
@@ -134,6 +135,30 @@ void addElement(char* name, enumVarType type){
     }
 }
 
+/* Adds an element and returns the offset of it */
+int addElementAndGetAddress(char* name, enumVarType type){
+    addElement(name,type);
+    return getOffset(name);
+}
+
+/* Adds a temporary Int element and returns the offset of it */
+int addTempINTAndGetAddress(){
+    char name[NAME_MAX_LENGTH];
+    if (tempCounter == 0){
+        // we create the first temporary variable and use it
+        addElement("0_TEMP",INT);
+        strcpy(name, "0_TEMP");
+    } else if (tempCounter == 1) {
+        // we create the second temporary variable and use it
+        addElement("1_TEMP",INT);
+        strcpy(name, "1_TEMP");
+    } else {
+        // we use the right temporary variable
+        sprintf(name, "%d_TEMP", tempCounter % 2);
+    }
+    tempCounter++;
+    return getOffset(name);
+}
 
 /* removes all symbols */
 void flushSymbolTable(){
@@ -199,6 +224,27 @@ void displayTable(){
     doubleLine();
 }
 
+/*removes all temporary variables used for INTs*/
+void suppressTempINTElement(){
+    if (tempCounter == 1){
+        suppressElement("0_TEMP");
+    } else {
+        if (tempCounter > 1){
+            suppressElement("0_TEMP");
+            suppressElement("1_TEMP");
+        }
+    }
+}
+
+/*removes one element*/
+void suppressElement(char* name){
+    for(int i = getIndex(name); i < (currentIndex - 1); i ++){
+        symbolTable[i] = symbolTable[i+1];
+    }
+    currentIndex--;
+    checkArraySanity();
+}
+
 void line(){
     printf("---------------------------------\n");
 }

table.h

@@ -12,7 +12,7 @@
 typedef enum enumVarType {INT, FLOAT} enumVarType;
 
 // a list of all type's sizes
-extern int memorySizes[2]; // TODO : PROBLEM  DOES'NT COMPILE
+extern int memorySizes[2];
 
 typedef struct {
     char name[NAME_MAX_LENGTH];
@@ -47,14 +47,18 @@ void clearOutOfScopeVariable();
 /* removes all symbols */
 void flushSymbolTable();
 
-
 /* Adds an element */
 void addElement(char* name, enumVarType type);
 
+/* Adds an element and returns the offset of it */
+int addElementAndGetAddress(char* name, enumVarType type);
+
+/* Adds a temporary Int element and returns the offset of it */
+int addTempINTAndGetAddress();
+
 /*creates a new structure and updates variables*/
 Symbol createNewStructure(char* name, enumVarType type);
 
-
 /*============================
        Element Edition
  ============================*/
@@ -62,6 +66,12 @@ Symbol createNewStructure(char* name, enumVarType type);
 /* sets the init state of the symbol to true */
 void setInit(char *name);
 
+/*removes one element*/
+void suppressElement(char* name);
+
+/*removes all temporary variables used for INTs*/
+void suppressTempINTElement();
+
 /*============================
        Element Access
  ============================*/

yacc.y

@@ -4,6 +4,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include "table.h"
+#include "operations.h"
 
 int t;
 %}
@@ -13,15 +14,16 @@ int yylex (void);
 void yyerror (const char *);
 }
 
-%union {char str[NAME_MAX_LENGTH]; int nbInt; enumVarType type; }
+%union {char str[NAME_MAX_LENGTH]; int nbInt; int addr; enumVarType type; }
  /*loops keywords*/
 %token tWHILE tIF tELSE
  /*reserved keywords*/
 %token tRETURN tPRINT
  /*types : integers, floats or void*/
 %token tFLOAT tINT tVOID
- /*operations*/
-%left tDIV tMUL tADD tSUB 
+ /*operations, mul and div are precedent to sub and add*/
+%left tSUB tADD
+%left tMUL tDIV
  /*Assignment*/
 %left tASSIGN
  /*comparisons*/
@@ -38,7 +40,8 @@ void yyerror (const char *);
 
  /* represents types with the values used in the table, see table.h */
 %type <type> Type
-
+%type <addr> Expression
+%type <addr> NbOrVariable
 
 %start Program
 %%
@@ -80,8 +83,8 @@ ConditionalExpression : tID
 
 
 /*NbOrVariable is either a number or a variable of type int*/
-NbOrVariable : tID {/* copy */}
-     | tNB {/* Affectation */};
+NbOrVariable : tID { $$ = getOffset($1);}
+     | tNB {$$ = operation_afc_nb_tmp($1);};
  
  /*List of all numerical operators*/
 NumericalOperator : tLE | tGE | tEQ | tNE | tLT | tGT;
@@ -95,19 +98,19 @@ IfStatement : tIF Condition InnerBlock
 
 WhileStatement : tWHILE Condition InnerBlock;
 
-Assignment : tID tASSIGN Expression tSEMI {setInit($1);};
+Assignment : tID tASSIGN Expression tSEMI {setInit($1); operation_afc_addr(getOffset($1),$3); suppressTempINTElement();};
 
  /*Expression operation applied on variables or values*/
-Expression : NbOrVariable
-           | FunctionCall
-           | tLPAR Expression tRPAR
+Expression : NbOrVariable {$$ = $1;}
+           | FunctionCall{$$ = 0;} // TODO : wait untile functions are implemented
+           | tLPAR Expression tRPAR {$$ = $2;}
            /* replaced by the four following lines
            //| Expression Operation Expression
            */
-           | Expression tADD Expression
-           | Expression tSUB Expression
-           | Expression tMUL Expression
-           | Expression tDIV Expression;
+           | Expression tADD Expression {$$ = operation_add($1, $3);}
+           | Expression tSUB Expression {$$ = operation_sub($1, $3);}
+           | Expression tMUL Expression {$$ = operation_mul($1, $3);}
+           | Expression tDIV Expression {$$ = operation_divInt($1, $3);};
            /*end of added bloat*/
 
 Expressions : Expression
@@ -127,7 +130,7 @@ VarsWithType : VarWithType
              | VarWithType tCOMMA VarsWithType;
 
  /*VarWithType = a variable associated to its type = int a*/
-VarWithType : Type tID;
+VarWithType : Type tID {addElement($2,$1);setInit($2);};
 
  /*the return type or argument type*/
 Type : tINT {$$ = INT;}