Issue with length of loader.bin, and can't load kernel for now
This commit is contained in:
Adrien Bourmault
parent
f3f9489167
commit
b952d9d900
BIN
bin/disk.img
BIN
bin/disk.img
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BIN
bin/loader.bin
BIN
bin/loader.bin
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BIN
bin/mbr.bin
BIN
bin/mbr.bin
Binary file not shown.
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BIN
obj/boot/mbr.bin
BIN
obj/boot/mbr.bin
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@ -33,6 +33,15 @@
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%define volumeLabel bp+0x2b ; Volume Label
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%define fatTypeLabel bp+0x36 ; File system type
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;; DISK BUFFER "SEGMENT"
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%define BUFFER_SEG 0x07c0 ; (BUFFER_SEG << 4) + BUFFER_OFF = 0x07C00
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%define BUFFER_OFF 0x0000
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;; SECOND STAGE LOADER "SEGMENT"
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%define LOAD_SEG LONG_SELECTOR-GDT64 ; (LOAD_SEG << 4) + LOAD_OFF = 0x070000
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%define LOAD_OFF Kernel
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[BITS 16]
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[ORG 0x1000]
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@ -41,14 +50,9 @@ mov ds, ax ; hm... And ds too
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mov es, ax ; And es because it is jealous
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mov [Bootdrv], dl
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xor dl, dl
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jmp 0x0000:main
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;; DATA
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Bootdrv db 0
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VGA_HEIGHT dq 0
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VIDEO_MODE dw 0
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;; GDT WITH DOC
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GDT64:
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NULL_SELECTOR: ;; null selector within 64 bits
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@ -128,7 +132,9 @@ GDT64:
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%include "boot/loader16.inc"
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main:
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;; compatibility check
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push si
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mov si, Init
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call PrintB
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pop si
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@ -137,8 +143,10 @@ main:
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push si
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mov si, Pass
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call PrintB
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pop si
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;; Enabling A20
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push si
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mov si, EnA20
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call PrintB
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pop si
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@ -148,6 +156,7 @@ main:
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push si
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mov si, Pass
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call PrintB
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pop si
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;; DISABLING CURSOR BLINKING AND GETTING INFOS
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call get_dimensions
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@ -172,10 +181,15 @@ main:
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push dword [VGA_HEIGHT]
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jmp (CODE_SELECTOR-GDT64):main32
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[BITS 32]
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VIDEO_MODE32 dw 0
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VGA_HEIGHT32 dw 0
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ErrorNo64:
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mov si, NoLongMode
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call PrintB
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Die:
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cli
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hlt ; die nooooow
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jmp 0xF000:0xFFF0
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[BITS 32]
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main32:
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pop dword [VGA_HEIGHT32]
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pop dword [VIDEO_MODE32]
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@ -238,18 +252,31 @@ main32:
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%include "boot/loader64.inc"
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;; DATA
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txt db 0x09, " Switching to Long Mode... ", 0
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Init db "Booting OS/K !", 0x0D, 0x0A, 0x0D, 0x0A, 0x09, " Checking CPUID...",0
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Reinit db "Booting OS/K !", 0x0D, 0x0A, 0x0D, 0x0A, 0
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CPUIDD db 0x09, " Checking CPUID...", 0
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EnA20 db 0x09, " Enabling A20 line...", 0
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NoLongMode db 0x0A, 0x0D, "ERROR : Your computer is not designed for x64 OS", 0
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KernSearch db 0x09, " Loading the Kernel in RAM...", 0
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txt db 0x09, " Switching to Long Mode... ", 0
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Reinit db "Booting OS/K !", 0x0D, 0x0A, 0x0D, 0x0A, 0
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Pass db " OK", 0x0A, 0x0D, 0
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msg db "The system is now in x64 mode. Is this not beautiful ?", 0x0A, 0x0D, 0
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NoLongMode db 0x0A, 0x0D, "ERROR : Your computer is not designed for x64 OS", 0
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FileNotFound db "Second Stage Error : The Kernel was not found.", 0x0A, 0x0D, 0
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DiskError db "Second Stage Error : The Disk has crashed.", 0x0A, 0x0D, 0
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filename db "KERNEL BIN"
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Bootdrv db 0
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UserData dw 0
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VGA_HEIGHT dq 0
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VIDEO_MODE dw 0
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VIDEO_MODE32 dw 0
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VGA_HEIGHT32 dw 0
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NextTRAM dq 0x0B8000 ; Last position of cursor
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VIDEO_MODE64 dq 0
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VGA_HEIGHT64 dq 0
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VGA_X dq 0x0
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msg db "The system is now in x64 mode. Is this not beautiful ?", 0x0A, 0x0D, 0
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VGA_X dq 0
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main64:
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pop qword [VGA_HEIGHT64]
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@ -280,6 +307,14 @@ main64:
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mov esi, Pass
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call write
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mov bl, 0x0F
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mov esi, KernSearch
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call write
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mov bl, 0x0A
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mov esi, Pass
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call write
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mov bl, 0x0F
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mov esi, txt
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call write
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@ -294,11 +329,6 @@ main64:
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jmp Die
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[BITS 16]
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ErrorNo64:
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mov si, NoLongMode
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call PrintB
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Die:
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cli
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hlt ; die nooooow
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jmp 0xF000:0xFFF0
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; times 1024 nop
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; XXX ;
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; It seems impossible to have an executable > 2.0 kB...
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@ -7,6 +7,7 @@
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; Desc: Kernel (second stage) Loader for OS/K INCLUDED FUNCTIONS ;
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; (x86_64 architecture only) ;
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;=----------------------------------------------------------------------------=;
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[BITS 16]
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disable_cursor:
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@ -7,6 +7,7 @@
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; Desc: Bootsector for OS/K INCLUDED FUNCTIONS ;
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; (x86_64 architecture only) ;
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;=----------------------------------------------------------------------------=;
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[BITS 16]
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read_clusters:
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;---------------------------------------------------;
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@ -100,7 +101,7 @@ read_sectors:
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shl ah, 1
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or cl, ah ; Now cx is set with respective track and sector numbers
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mov dl, byte [Bootdrv] ; Set correct Bootdrv for int 13h
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mov di, 5 ; Try five times to read the sector because i love 5
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mov di, 21 ; Try five times to read the sector because i love 21
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.attempt_read:
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mov ax, 0x0201 ; Read Sectors func of int 13h, read one sector
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int 0x13 ; Call int 13h (BIOS disk I/O)
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