program.h

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#ifndef PROGRAM_H
#define PROGRAM_H
 
#include <stdio.h>
#include <stdbool.h>
#include "list.h"
 
typedef int t_regID;
 
#define REG_INVALID ((t_regID)(-1))
#define REG_0 ((t_regID)(0))
 
 
typedef enum {
  TYPE_INT,      
  TYPE_INT_ARRAY 
} t_symbolType;
 
 
typedef struct {
  unsigned int labelID;
  char *name;
  bool global;
  bool isAlias;
} t_label;
 
typedef struct {
  t_regID ID;
  t_listNode *mcRegWhitelist;
} t_instrArg;
 
typedef struct {
  t_label *label;        
  int opcode;            
  t_instrArg *rDest;     
  t_instrArg *rSrc1;     
  t_instrArg *rSrc2;     
  int immediate;         
  t_label *addressParam; 
  char *comment;
} t_instruction;
 
typedef struct t_symbol {
  t_symbolType type;
  char *ID;
  t_label *label;
  int arraySize;
} t_symbol;
 
typedef struct {
  t_listNode *labels;            
  t_listNode *instructions;      
  t_listNode *symbols;           
  t_regID firstUnusedReg;        
  unsigned int firstUnusedLblID; 
  t_label *pendingLabel;         
} t_program;
 
 
 
t_program *newProgram(void);
 
void deleteProgram(t_program *program);
 
 
 
 
t_label *createLabel(t_program *program);
 
void assignLabel(t_program *program, t_label *label);
 
void setLabelName(t_program *program, t_label *label, const char *name);
 
char *getLabelName(t_label *label);
 
 
 
 
t_regID getNewRegister(t_program *program);
 
t_instruction *genInstruction(t_program *program, int opcode, t_regID rd,
    t_regID rs1, t_regID rs2, t_label *label, int immediate);
 
void removeInstructionAt(t_program *program, t_listNode *instrLi);
 
 
 
 
t_symbol *createSymbol(
    t_program *program, char *ID, t_symbolType type, int arraySize);
 
t_symbol *getSymbol(t_program *program, char *ID);
 
bool isArray(t_symbol *symbol);
 
 
 
 
void genEpilog(t_program *program);
 
void programDump(t_program *program, FILE *fout);
 
 
#endif