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|
%{
/*
* UPEM / Compilation / Projet
* Pacien TRAN-GIRARD, Adam NAILI
*/
#include <stdio.h>
#include "symboltable.h"
extern int lineno;
int yylex();
void yyerror(char *);
#define GLOBAL 0
#define LOCAL 1
static int status = GLOBAL;
%}
%union {
char caractere;
int num;
char ident[64];
int type;
char comp[3];
char addsub;
char divstar;
}
%token <caractere> CARACTERE
%token <num> NUM
%token <ident> IDENT
%token <comp> ORDER EQ
%token <addsub> ADDSUB
%token <divstar> DIVSTAR
%token OR AND CONST IF ELSE WHILE RETURN VOID PRINT READC READE
%token <type> TYPE
%type <num> Exp EB TB FB M E T F
%type <ident> LValue
%left ','
%precedence ')'
%precedence ELSE
%%
Prog:{printf("extern printf\n");
printf("section .data\n");
printf("format_int db \"%%d \\n\",10,0\n\n");
printf("section .bss\nsection .text\n\nglobal _start\n");
printf("print: ;print needs an argument in rax\n\n");
printf("push rbp\n");
printf("mov rbp, rsp\n");
printf("push rsi\n");
printf("mov rsi, rax\n");
printf("mov rdi, format_int\n");
printf("mov rax, 0\n");
printf("call printf WRT ..plt\n");
printf("pop rsi\n");
printf("pop rbp\n");
printf("ret\n");
printf("\n_start:\n");
}
DeclConsts DeclVars DeclFoncts
{
printf("mov rax,60 \n");
printf("mov rdi,0 \n");
printf("syscall \n");
}
;
DeclConsts:
DeclConsts CONST ListConst ';'
|
;
ListConst:
ListConst ',' IDENT '=' Litteral
| IDENT '=' Litteral
;
Litteral:
NombreSigne
| CARACTERE
;
NombreSigne:
NUM
| ADDSUB NUM
;
DeclVars:
DeclVars TYPE Declarateurs ';'
|
;
Declarateurs:
Declarateurs ',' Declarateur {glo_addVar($<ident>3, $<type>0);}
| Declarateur {glo_addVar($<ident>1, $<type>0);}
;
Declarateur:
IDENT
| IDENT '[' NUM ']'
;
DeclFoncts:
DeclFoncts DeclFonct
| DeclFonct
;
DeclFonct:
EnTeteFonct {status = LOCAL;} Corps {status = GLOBAL;}
;
EnTeteFonct:
TYPE IDENT '(' Parametres ')'
| VOID IDENT '(' Parametres ')'
;
Parametres:
VOID
| ListTypVar
;
ListTypVar:
ListTypVar ',' TYPE IDENT {glo_addVar($<ident>4, $<type>3);}
| TYPE IDENT {glo_addVar($<ident>2, $<type>1);}
;
Corps:
'{' DeclConsts DeclVars SuiteInstr '}'
;
SuiteInstr:
SuiteInstr Instr
| ;
Instr:
Exp ';'
| ';'
| RETURN Exp ';'
| RETURN ';'
| READE '(' IDENT ')' ';' {glo_lookup($<ident>3);}
| READC '(' IDENT ')' ';' {glo_lookup($<ident>3);}
| PRINT '(' Exp ')' ';'
| IF '(' Exp ')' Instr
| IF '(' Exp ')' Instr ELSE Instr
| WHILE '(' Exp ')' Instr
| '{' SuiteInstr '}'
;
Exp:
LValue '=' Exp {$$ = glo_lookup($<ident>1);}
| EB
;
EB:
EB OR TB
| TB
;
TB:
TB AND FB
| FB
;
FB:
FB EQ M
| M
;
M:
M ORDER E
| E
;
E:
E ADDSUB T
| T
;
T:
T DIVSTAR F
| F
;
F:
ADDSUB F {$$ = $2;} //on fait remonter le type
| '!' F {$$ = $2;}
| '(' Exp ')' {$$ = $2;}
| LValue {$$ = glo_lookup($<ident>1);}
| NUM {$$ = INT;} // on stocke les types pour l'analyse sémantique
| CARACTERE {$$ = CHAR;}
| IDENT '(' Arguments ')' {$$ = INT;} //tableau d'entiers uniquement
;
LValue:
IDENT {glo_lookup($<ident>1);}
| IDENT '[' Exp ']' {glo_lookup($<ident>1);}
;
Arguments:
ListExp
|
;
ListExp:
ListExp ',' Exp
| Exp
;
%%
void yyerror(char *msg){
fprintf(stderr, "%s at line %d\n", msg, lineno);
}
int main(int argc, char **argv) {
return yyparse();
}
|