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// MIT License, Copyright (c) 2021 Marvin Borner
#ifndef INT_H
#define INT_H
#include <def.h>
#define INT_GATE 0x8e
#define INT_TRAP 0xef
#define INT_USER 0x60
#define IDT_ENTRY(offset, selector, type) \
(struct idt_entry) \
{ \
.base_low = (u16)((offset)&0xffff), .sel = (selector), .zero = 0, .flags = (type), \
.base_high = (u16)(((offset) >> 16) & 0xffff), \
}
struct int_frame {
u32 gs, fs, es, ds;
u32 edi, esi, ebp, esp, ebx, edx, ecx, eax;
u32 int_no, err_code;
u32 eip, cs, eflags;
} PACKED;
struct int_frame_user {
u32 gs, fs, es, ds;
u32 edi, esi, ebp, esp, ebx, edx, ecx, eax;
u32 int_no, err_code;
u32 eip, cs, eflags;
u32 useresp, ss;
} PACKED;
struct idt_entry {
u16 base_low;
u16 sel; // Kernel segment
u8 zero; // Always 0
u8 flags;
u16 base_high;
} PACKED;
struct idt_ptr {
u16 size;
void *base;
} PACKED;
extern struct idt_ptr idt;
void idt_install(void);
void int_event_handler_add(u32 int_no, void (*handler)(void));
#endif
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