Import backup from 2004-07-09

include/Makefile

@@ -0,0 +1,2 @@
+clean:
+	- rm *~

include/kernel.h

@@ -0,0 +1,17 @@
+
+#ifndef __HOS_KERNEL_H__
+#define __HOS_KERNEL_H__ __HOS_KERNEL_H__
+
+#include "multiboot.h"
+
+#define LINK_ADDRESS 0xC0000000
+
+/* returns true to callee if we should jump to a real mode module */
+int k_mbsave(mb_info_t *mbinfo, unsigned int mb_magic);
+
+void k_init();
+
+void isr();
+
+#endif
+

include/module.h

@@ -0,0 +1,16 @@
+
+#ifndef __HOS_MODULE_H__
+#define __HOS_MODULE_H__ __HOS_MODULE_H__
+
+#define MOD_REAL_MODE 1
+#define MOD_KERNEL 2
+
+typedef struct {
+	unsigned int mod_magic;		// "HOSM" = 0x484F534D
+	unsigned int mod_type;		// module type
+	void (*init) ();		// address of void initialization function
+	unsigned int reserved;
+} hos_module_header_t;
+
+#endif
+

include/multiboot.h

@@ -0,0 +1,144 @@
+
+#ifndef __HOS_MULTIBOOT_H__
+#define __HOS_MULTIBOOT_H__ __HOS_MULTIBOOT_H__
+
+/* The magic number for the Multiboot header. */
+#define MULTIBOOT_HEADER_MAGIC          0x1BADB002
+
+#define MB_HEADER_ALIGN_MODULES 0x01
+#define MB_HEADER_MEM_INFO 0x02
+#define MB_HEADER_VIDEO_INFO 0x04
+#define MB_HEADER_KLUDGE_OFFSETS 0x10000
+
+
+/* The magic number passed by a Multiboot-compliant boot loader. */
+#define MULTIBOOT_BOOTLOADER_MAGIC      0x2BADB002
+
+#define MB_BOOTLOADER_MEM_INFO 0x01
+#define MB_BOOTLOADER_BOOT_DEVICE 0x02
+#define MB_BOOTLOADER_COMMAND_LINE 0x04
+#define MB_BOOTLOADER_MODS 0x08
+#define MB_BOOTLOADER_AOUT 0x10
+#define MB_BOOTLOADER_ELF 0x20
+#define MB_BOOTLOADER_MMAP 0x40
+#define MB_BOOTLOADER_DRIVES 0x80
+#define MB_BOOTLOADER_CONFIG 0x0100
+#define MB_BOOTLOADER_APM 0x0200
+#define MB_BOOTLOADER_GRAPHICS 0x0400
+
+
+#define MB_DRIVE_MODE_CHS 0
+#define MB_DRIVE_MODE_LBA 1
+
+
+/* The Multiboot header. */
+typedef struct
+{
+	unsigned int magic;
+	unsigned int flags;
+	unsigned int checksum;
+	unsigned int header_addr;
+	unsigned int load_addr;
+	unsigned int load_end_addr;
+	unsigned int bss_end_addr;
+	unsigned int entry_addr;
+} mb_header_t;
+
+/* The symbol table for a.out. */
+typedef struct
+{
+	unsigned int tabsize;
+	unsigned int strsize;
+	unsigned int addr;
+	unsigned int reserved;
+} mb_aout_symbol_table_t;
+
+/* The section header table for ELF. */
+typedef struct
+{
+	unsigned int num;
+	unsigned int size;
+	unsigned int addr;
+	unsigned int shndx;
+} mb_elf_section_header_table_t;
+
+/* The Multiboot information. */
+typedef struct
+{
+	unsigned int flags;
+	unsigned int mem_lower;
+	unsigned int mem_upper;
+	unsigned int boot_device;
+	unsigned int cmdline;
+	unsigned int mods_count;
+	unsigned int mods_addr;
+	union
+	{
+		mb_aout_symbol_table_t aout_sym;
+		mb_elf_section_header_table_t elf_sec;
+	};
+	unsigned int mmap_length;
+	unsigned int mmap_addr;
+	unsigned int drives_length;
+	unsigned int drives_addr;
+	unsigned int config_table;
+	unsigned int bootloader_name;
+	unsigned int apm_table;
+
+	unsigned int vbe_control_info;
+	unsigned int vbe_mode_info;
+	unsigned short vbe_mode;
+	unsigned short vbe_interface_seg;
+	unsigned short vbe_interface_off;
+	unsigned short vbe_interface_len;
+} mb_info_t;
+
+/* The module structure. */
+typedef struct
+{
+	unsigned int mod_start;
+	unsigned int mod_end;
+	unsigned int string;
+	unsigned int reserved;
+} mb_module_t;
+
+/* The memory map. Be careful that the offset 0 is base_addr_low, not size. */
+typedef struct
+{
+	unsigned int size;		//offset -4
+	unsigned int base_addr_low;	//offset 0
+	unsigned int base_addr_high;
+	unsigned int length_low;
+	unsigned int length_high;
+	unsigned int type;
+} mb_mmap_t;
+
+/* The drive structure */
+typedef struct
+{
+	unsigned int size;
+	unsigned char drive_number;
+	unsigned char drive_mode;
+	unsigned char drive_cylinders;
+	unsigned char drive_heads;
+	unsigned char drive_sectors;
+	unsigned short drive_ports[1];
+} mb_drive_t;
+
+/* APM table structure */
+typedef struct
+{
+	unsigned short version;
+	unsigned short cseg;
+	unsigned int offset;
+	unsigned short cseg_16;
+	unsigned short dseg;
+	unsigned short flags;
+	unsigned short cseg_len;
+	unsigned short cseg_16_len;
+	unsigned short dseg_len;
+} mb_apm_t;
+
+
+#endif
+