loader.h File Reference

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Macros
#define	LOADER_BASE   0x7c00 /* Physical address of loader's base. */
#define	LOADER_END   0x7e00 /* Physical address of end of loader. */
#define	LOADER_KERN_BASE   0x8004000000
#define	LOADER_PHYS_BASE   0x200000
#define	MULTIBOOT_INFO   0x7000
#define	MULTIBOOT_FLAG   MULTIBOOT_INFO
#define	MULTIBOOT_MMAP_LEN   MULTIBOOT_INFO + 44
#define	MULTIBOOT_MMAP_ADDR   MULTIBOOT_INFO + 48
#define	E820_MAP   MULTIBOOT_INFO + 52
#define	E820_MAP4   MULTIBOOT_INFO + 56
#define	LOADER_SIG   (LOADER_END - LOADER_SIG_LEN) /* 0xaa55 BIOS signature. */
#define	LOADER_ARGS   (LOADER_SIG - LOADER_ARGS_LEN) /* Command-line args. */
#define	LOADER_ARG_CNT   (LOADER_ARGS - LOADER_ARG_CNT_LEN) /* Number of args. */
#define	LOADER_SIG_LEN   2
#define	LOADER_ARGS_LEN   128
#define	LOADER_ARG_CNT_LEN   4
#define	SEL_NULL   0x00 /* Null selector. */
#define	SEL_KCSEG   0x08 /* Kernel code selector. */
#define	SEL_KDSEG   0x10 /* Kernel data selector. */
#define	SEL_UDSEG   0x1B /* User data selector. */
#define	SEL_UCSEG   0x23 /* User code selector. */
#define	SEL_TSS   0x28 /* Task-state segment. */
#define	SEL_CNT   8 /* Number of segments. */

Macro Definition Documentation

E820_MAP

#define E820_MAP   MULTIBOOT_INFO + 52

E820_MAP4

#define E820_MAP4   MULTIBOOT_INFO + 56

LOADER_ARG_CNT

#define LOADER_ARG_CNT   (LOADER_ARGS - LOADER_ARG_CNT_LEN) /* Number of args. */

LOADER_ARG_CNT_LEN

#define LOADER_ARG_CNT_LEN   4

LOADER_ARGS

#define LOADER_ARGS   (LOADER_SIG - LOADER_ARGS_LEN) /* Command-line args. */

LOADER_ARGS_LEN

#define LOADER_ARGS_LEN   128

LOADER_BASE

#define LOADER_BASE   0x7c00 /* Physical address of loader's base. */

LOADER_END

#define LOADER_END   0x7e00 /* Physical address of end of loader. */

LOADER_KERN_BASE

#define LOADER_KERN_BASE   0x8004000000

LOADER_PHYS_BASE

#define LOADER_PHYS_BASE   0x200000

LOADER_SIG

#define LOADER_SIG   (LOADER_END - LOADER_SIG_LEN) /* 0xaa55 BIOS signature. */

LOADER_SIG_LEN

#define LOADER_SIG_LEN   2

MULTIBOOT_FLAG

#define MULTIBOOT_FLAG   MULTIBOOT_INFO

MULTIBOOT_INFO

#define MULTIBOOT_INFO   0x7000

MULTIBOOT_MMAP_ADDR

#define MULTIBOOT_MMAP_ADDR   MULTIBOOT_INFO + 48

MULTIBOOT_MMAP_LEN

#define MULTIBOOT_MMAP_LEN   MULTIBOOT_INFO + 44

SEL_CNT

#define SEL_CNT   8 /* Number of segments. */

SEL_KCSEG

#define SEL_KCSEG   0x08 /* Kernel code selector. */

SEL_KDSEG

#define SEL_KDSEG   0x10 /* Kernel data selector. */

SEL_NULL

#define SEL_NULL   0x00 /* Null selector. */

SEL_TSS

#define SEL_TSS   0x28 /* Task-state segment. */

SEL_UCSEG

#define SEL_UCSEG   0x23 /* User code selector. */

SEL_UDSEG

#define SEL_UDSEG   0x1B /* User data selector. */