From 67fc7933df394848eeb86a45f37e35ded032e5e9 Mon Sep 17 00:00:00 2001
From: Adam NAILI
Date: Mon, 14 May 2018 15:48:01 +0200
Subject: Not working properly: Beginning of the implementation of globals ->
 need to modify if(global) else

---
 src/generator.c | 10 +++++++---
 src/generator.h |  3 +++
 src/tpc.y       |  7 +++++--
 3 files changed, 15 insertions(+), 5 deletions(-)

(limited to 'src')

diff --git a/src/generator.c b/src/generator.c
index e547a23..88f32d7 100644
--- a/src/generator.c
+++ b/src/generator.c
@@ -13,7 +13,11 @@ void gen_prologue() {
   printf("extern printf\n");
   printf("section .data\n");
   printf("format_int db \"%%d\",10,0\n\n");
-  printf("section .bss\nsection .text\n\nglobal _start\n");
+  printf("section .bss\n");
+}
+void gen_prologue_continue(){
+  printf("globals: resq %d\n", nb_globals);
+  printf("section .text\n\nglobal _start\n");
   printf("print: ;print needs an argument in rax\n");
   printf("push rbp\n");
   printf("mov rbp, rsp\n");
@@ -28,7 +32,6 @@ void gen_prologue() {
   printf("\n_start:\n");
   printf("push rbp\nmov rbp, rsp\n\n");
 }
-
 void gen_const_declaration() {
   printf("mov rax,60 \n");
   printf("mov rdi,0 \n");
@@ -43,13 +46,14 @@ void gen_declaration(const char name[], int type, Scope scope) {
   switch (scope) {
   case GLOBAL:
     glo_addVar(name, type);
+    nb_globals++;
     break;
   case LOCAL:
     loc_addVar(name, type);
+    printf("push 0\n");
     break;
   }
 
-  printf("push 0\n");
 }
 
 // ----- READ AND PRINT FUNCTIONS -----
diff --git a/src/generator.h b/src/generator.h
index c907f66..daa7339 100644
--- a/src/generator.h
+++ b/src/generator.h
@@ -11,7 +11,10 @@ typedef enum scope {
   LOCAL
 } Scope;
 
+extern int nb_globals;
+
 void gen_prologue();
+void gen_prologue_continue();
 void gen_const_declaration();
 void gen_declaration(const char name[], int type, Scope scope);
 
diff --git a/src/tpc.y b/src/tpc.y
index 17b8718..6da63ef 100644
--- a/src/tpc.y
+++ b/src/tpc.y
@@ -12,6 +12,7 @@
  */
 
 #include <stdio.h>
+int nb_globals = 0;
 #include "symbol_table.h"
 #include "generator.h"
 
@@ -89,9 +90,11 @@ DeclFonct:
   Corps       { scope = GLOBAL; }
 ;
 EnTeteFonct:
-  TYPE IDENT '(' Parametres ')'
-| VOID IDENT '(' Parametres ')'
+  TYPE IDENT Prologue '(' Parametres ')'
+| VOID IDENT Prologue '(' Parametres ')'
 ;
+Prologue: {gen_prologue_continue();};
+
 Parametres:
   VOID
 | ListTypVar
-- 
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