21 lines
324 B
C
21 lines
324 B
C
#ifndef _HEAD_H
|
|
#define _HEAD_H
|
|
|
|
typedef struct desc_struct {
|
|
unsigned long a,b;
|
|
} desc_table[256];
|
|
|
|
extern unsigned long pg_dir[1024];
|
|
extern desc_table idt,gdt;
|
|
|
|
#define GDT_NUL 0
|
|
#define GDT_CODE 1
|
|
#define GDT_DATA 2
|
|
#define GDT_TMP 3
|
|
|
|
#define LDT_NUL 0
|
|
#define LDT_CODE 1
|
|
#define LDT_DATA 2
|
|
|
|
#endif
|