#ifndef ISR_H
#define ISR_H

#include "stdint.h"

typedef struct registers
{
    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;

// This intentionally accepts a *COPY* of the registers.
// It's slower, but it prevents service routines from messing with them.
// Maybe messing with them is useful, and we'll change this later.
typedef void (*isr_handler_t)(registers_t);
void register_interrupt_handler(uint8_t interrupt, isr_handler_t handler);

#define IRQ0 32
#define IRQ1 33
#define IRQ2 34
#define IRQ3 35
#define IRQ4 36
#define IRQ5 37
#define IRQ6 38
#define IRQ7 39
#define IRQ8 40
#define IRQ9 41
#define IRQ10 42
#define IRQ11 43
#define IRQ12 44
#define IRQ13 45
#define IRQ14 46
#define IRQ15 47

#endif