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Add struct KernAux_Arch_I386_PageDirEntry

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Alex Kotov 2021-12-18 09:06:55 +05:00
parent 20b88b314b
commit 3497b1ff9c
Signed by: kotovalexarian
GPG key ID: 553C0EBBEB5D5F08
1 changed files with 15 additions and 0 deletions
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15
include/kernaux/arch/i386.h
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@ -31,6 +31,21 @@ extern "C" {
#define KERNAUX_ARCH_I386_CR4_PGE ((uint32_t)0x00000080) // 7: Page Global Enabled
// TODO: bits 8-31
struct KernAux_Arch_I386_PageDirEntry {
unsigned present : 1;
unsigned writable : 1;
unsigned user : 1;
unsigned write_through : 1;
unsigned cache_disabled : 1;
unsigned accessed : 1;
unsigned always_0 : 1;
unsigned page_size : 1;
unsigned ignored : 1;
unsigned unused : 3;
unsigned addr : 20;
}
__attribute__((packed));
inline static uint8_t kernaux_arch_i386_inportb(uint16_t port);
inline static uint16_t kernaux_arch_i386_inportw(uint16_t port);
inline static uint32_t kernaux_arch_i386_inportd(uint16_t port);