idt.h

/* ** por compatibilidad se omiten tildes **
================================================================================
 TRABAJO PRACTICO 3 - System Programming - ORGANIZACION DE COMPUTADOR II - FCEN
================================================================================
  definicion de las rutinas de atencion de interrupciones
*/

#ifndef __IDT_H__
#define __IDT_H__


/* Struct de descriptor de IDT */
typedef struct str_idt_descriptor {
    unsigned short  idt_length;
    unsigned int    idt_addr;
} __attribute__((__packed__)) idt_descriptor;

/* Struct de una entrada de la IDT */
typedef struct str_idt_entry_fld {
    unsigned short offset_0_15;
    unsigned short segsel;
    unsigned short attr;
    unsigned short offset_16_31;
} __attribute__((__packed__, aligned (8))) idt_entry;

extern idt_entry idt[];
extern idt_descriptor IDT_DESC;
extern char* interrupciones[];

extern char* int66;
extern char* syscall;
extern char* tiempo_excedido;

void idt_inicializar();
void interrupcion_teclado(char scancode);

#endif  /* !__IDT_H__ */