42_KFS/headers/interrupts.h

#pragma once

#include <stdint.h>

struct registers {
	// data segment selector
	uint32_t ds;
	// general purpose registers pushed by pusha
	uint32_t edi, esi, ebp, esp, ebx, edx, ecx, eax;
	// pushed by isr procedure
	uint32_t int_no, err_code;
	// pushed by CPU automatically
	uint32_t eip, cs, eflags, useresp, ss;
};

typedef void (*isr_t)(struct registers *);

void isr_handler(struct registers *regs);
void pic_send_eoi(uint8_t irq);
void register_interrupt_handler(int index, isr_t handler);

static inline void cli(void)
{
	__asm__ volatile("cli");
}

// aka sti
static inline void toris(void)
{
	__asm__ volatile("sti");
}