idt.h

//
// Created by dylan on 10/07/2026.
//
 
#ifndef BLU_OS_IDT_H
#define BLU_OS_IDT_H
#include <stdint.h>
 
#define IDT_MAX_DESCRIPTORS 256
 
typedef struct {
    uint16_t isrLow;
    uint16_t kernelCs;
    uint8_t ist;
    uint8_t attributes;
    uint16_t isrMid;
    uint32_t isrHigh;
    uint32_t reserved;
} __attribute__((packed)) IDTEntry;
 
typedef struct {
    uint16_t limit;
    uint64_t base;
} __attribute__((packed)) IDTR;
 
extern void* isrStubTable[];
 
extern void* irqStubTable[];
 
__attribute__((noreturn))
void exceptionHandler(uint64_t vector, uint64_t errorCode);
 
void irqHandler(uint64_t vector, uint64_t errorCode);
 
void idtSetDescriptor(uint8_t vector, void* isr, uint8_t flags);
 
void initIdt();
 
#endif //BLU_OS_IDT_H