os/kernel/cpu/i386/isr.h

#ifndef ISR_H
#define ISR_H

#include <stdint.h>

/* Struct which aggregates many registers */
typedef struct {
   uint32_t ds; /* Data segment selector */
   uint32_t edi,esi,ebp,esp,ebx,edx,ecx,eax; /* Pushed by pusha. */
   uint32_t int_no,err_code; /* Interrupt number and error code (if applicable) */
   uint32_t eip,cs,eflags,useresp,ss; /* Pushed by the processor automatically */
} registers_t;

typedef void (*isr_t)(registers_t*);

void isr_install();
void isr_register_handler(uint8_t n,isr_t handler);

#endif