PoliEcho-holding-org/kern
1
0
Fork 1
mirror of https://github.com/Tom-on64/kern.git synced 2026-11-03 18:22:22 +00:00
Code Issues Packages Projects Releases Wiki Activity

Got IDT & ISRs working!

Browse Source
This commit is contained in:
Tom-on
2025-03-21 14:09:15 +01:00
parent 05c8ee8f67
commit c3f8d7d8f2
9 changed files with 322 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
kernel/include/idt.h
+27
View File
@@ -0,0 +1,27 @@
#ifndef _IDT_H
#define _IDT_H
#include <kernel.h>
#define IDT_ENTRIES 256
#define IDT_FLAG_TRAP 0x8f // P = 1, Priv = 00, S = 0, Type = 1111 (32-bit trap)
#define IDT_FLAG_INT 0x8e // P = 1, Priv = 00, S = 0, Type = 1110 (32-bit int)
#define IDT_FLAG_USER 0xee // P = 1, Priv = 11, S = 0, Type = 1110 (32-bit int)
struct idt_entry {
uint16_t offsetLow;
uint16_t selector;
uint8_t __unused;
uint8_t flags;
uint16_t offsetHigh;
} __packed;
struct idt_pointer {
uint16_t limit;
uint32_t base;
} __packed;
int idt_init(void);
void idt_setGate(uint8_t i, void* handler, uint8_t flags);
#endif