#pragma once

#include "types.h"
#include <stdint.h>

struct registers {
	// data segment selector
	u32 ds;
	// general purpose registers pushed by pusha
	u32 edi, esi, ebp, esp, ebx, edx, ecx, eax;
	// pushed by isr procedure
	u32 int_no, err_code;
	// pushed by CPU automatically
	u32 eip, cs, eflags, useresp, ss;
};

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

void isr_handler(struct registers *regs);
void pic_send_eoi(u8 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");
}