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| author | Loic Guegan <manzerbredes@mailbox.org> | 2021-04-21 18:54:50 +0200 |
|---|---|---|
| committer | Loic Guegan <manzerbredes@mailbox.org> | 2021-04-21 18:54:50 +0200 |
| commit | 99019721a9e147c49becc466c5427609b937aca8 (patch) | |
| tree | 3b187d90bdb606a9c27760cd6e187aeb995fd956 /src/core/idt.hpp | |
| parent | 2f712d027b38bebd571e4fa673f0d642b59e3c98 (diff) | |
Enable interrupts
Diffstat (limited to 'src/core/idt.hpp')
| -rw-r--r-- | src/core/idt.hpp | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/src/core/idt.hpp b/src/core/idt.hpp new file mode 100644 index 0000000..f2aca43 --- /dev/null +++ b/src/core/idt.hpp @@ -0,0 +1,33 @@ +#pragma once + +#include "types.hpp" +#include "libs/stdio.hpp" + +#define IDT_GATE_SIZE 16 +#define IDT_MAX_ENTRIES 50 +#define IDT_ADDR 0x200000 + +#define IDT_OPT_P (1 << 15) +#define IDT_OPT_TYPE_INT 0xE << 8 +#define IDT_OPT_PRVL_0 0 +#define IDT_OPT_PRVL_1 (1 << 13) +#define IDT_OPT_PRVL_2 (2 << 13) +#define IDT_OPT_PRVL_3 (3 << 13) + + + +typedef struct IDT_REGISTER { + u16 limit; + u64 base; +} __attribute__((packed)) IDT_REGISTER; + +typedef struct IDT_DESCRIPTOR { + u64 offset; + u16 selector; + u16 options; + u8 ist; + u32 ign; +} __attribute__((packed)) IDT_DESCRIPTOR; + +void idt_enable_interrupt(void); +void idt_write_descriptor(IDT_DESCRIPTOR desc, u16 index);
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