interruption_tables.h

#ifndef MUSHOS_INTERRUPTION_TABLES_H
#define MUSHOS_INTERRUPTION_TABLES_H
 
#include "../../lib/base/generic.h"
 
 
typedef struct {
    u_word base_low;
    u_word selector;
    u_byte always0;
    u_byte flags;
    u_word base_high;
} __attribute__((packed)) IDT_entry;
 
typedef struct {
    u_word size;
    u_dword pos;
} __attribute__((packed)) IDT_descriptor;
 
typedef struct {
    IDT_entry entries [256];
    IDT_descriptor descriptor;
} IDT;
 
void init_interruptions();
void init_debug_handler();
 
typedef struct {
    u_dword ds;                  // Data segment selector
    u_dword edi, esi, ebp, esp_plus, ebx, edx, ecx, eax; // Pushed by pusha.
    u_dword int_no, err_code;    // Interrupt number and error code (if applicable)
    u_dword eip, cs, eflags; // Pushed by the processor automatically.
} registers;
 
typedef void (*interruption_handler)(registers* regs);
void set_interrupt_handler(u_byte n, interruption_handler handler);
void silence_interrupt(u_byte n);
 
#endif //MUSHOS_INTERRUPTION_TABLES_H