40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/**
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* GDT section header of rockOS
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* Copyright (C) 2022 Furkan Mudanyali
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, _either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef _ROCKOS_GDT_H
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#define _ROCKOS_GDT_H
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#include <stdint.h>
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#define GDT_ENTRIES 0x6
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typedef struct {
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uint16_t limit;
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uint32_t base;
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} __attribute__((packed)) gdtr_t;
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typedef struct {
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uint16_t limit_low;
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uint16_t base_low;
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uint8_t base_mid;
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uint8_t access;
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uint8_t limit_hi_flags;
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uint8_t base_high;
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} __attribute__((packed)) gdt_entry_t;
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#endif |