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CTAOS v3

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This commit is contained in:
Tiberiu Chibici
2021-09-14 18:34:14 +03:00
parent 7cb940e485
commit 4e5c38d0ff
152 changed files with 5042 additions and 2585 deletions
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27
SysCore/memory/pte.h Normal file
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#ifndef __PAGE_TABLE_ENTRY_
#define __PAGE_TABLE_ENTRY_
enum __PAGE_FLAGS {
_I86_PTE_PRESENT = 1,
_I86_PTE_WRITABLE = 2,
_I86_PTE_USER = 4,
_I86_PTE_WRITETHROUGH = 8,
_I86_PTE_NOT_CACHEABLE = 0x10,
_I86_PTE_ACCESSED = 0x20,
_I86_PTE_DIRTY = 0x40,
_I86_PTE_PAT = 0x80,
_I86_PTE_CPU_GLOBAL = 0x100,
_I86_PTE_LV4_GLOBAL = 0x200,
_I86_PTE_FRAME = 0x7FFFF000
};
typedef unsigned pt_entry;
extern void pt_entry_add_attrib (pt_entry* entry, unsigned mask);
extern void pt_entry_del_attrib (pt_entry* entry, unsigned mask);
extern void pt_entry_set_frame (pt_entry* entry, unsigned address);
extern unsigned pt_entry_get_frame (pt_entry entry);
extern unsigned char pt_entry_is_present (pt_entry entry);
extern unsigned char pt_entry_is_writable (pt_entry entry);
#endif