forked from KolibriOS/kolibrios
Split bootbios.asm and kernel.asm.
* Move bios-related part of kernel.asm before B32 label to bootbios.asm file; * Move bx_from_load, boot_dev and kernel_restart_bootblock variables to BOOT_* 0x9000 block; * Update Tupfile.lua, Makefile, build.bat, build.sh accordingly; * Now bios and uefi loaders can jump to very first byte of the kernel. git-svn-id: svn://kolibrios.org@7129 a494cfbc-eb01-0410-851d-a64ba20cac60
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@@ -131,115 +131,39 @@ pci_data_sel equ (pci_data_32-gdts)
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;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; 16 BIT ENTRY FROM BOOTSECTOR ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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use16
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org 0x0
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jmp start_of_code
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if lang eq sp
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include "kernelsp.inc" ; spanish kernel messages
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else if lang eq et
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version db 'Kolibri OS versioon 0.7.7.0+ ',13,10,13,10,0
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else
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version db 'Kolibri OS version 0.7.7.0+ ',13,10,13,10,0
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end if
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include "boot/bootstr.inc" ; language-independent boot messages
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include "boot/preboot.inc"
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if lang eq ge
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include "boot/bootge.inc" ; german system boot messages
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else if lang eq sp
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include "boot/bootsp.inc" ; spanish system boot messages
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else if lang eq ru
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include "boot/bootru.inc" ; russian system boot messages
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include "boot/ru.inc" ; Russian font
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else if lang eq et
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include "boot/bootet.inc" ; estonian system boot messages
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include "boot/et.inc" ; Estonian font
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else
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include "boot/booten.inc" ; english system boot messages
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end if
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include "boot/bootcode.inc" ; 16 bit system boot code
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include "bus/pci/pci16.inc"
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include "detect/biosdisk.inc"
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; SWITCH TO 32 BIT PROTECTED MODE ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; CR0 Flags - Protected mode and Paging
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mov ecx, CR0_PE+CR0_AM
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; Enabling 32 bit protected mode
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sidt [cs:old_ints_h]
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cli ; disable all irqs
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cld
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mov al, 255 ; mask all irqs
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out 0xa1, al
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out 0x21, al
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l.5:
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in al, 0x64 ; Enable A20
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test al, 2
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jnz l.5
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mov al, 0xD1
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out 0x64, al
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l.6:
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in al, 0x64
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test al, 2
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jnz l.6
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mov al, 0xDF
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out 0x60, al
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l.7:
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in al, 0x64
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test al, 2
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jnz l.7
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mov al, 0xFF
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out 0x64, al
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lgdt [cs:tmp_gdt] ; Load GDT
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mov eax, cr0 ; protected mode
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or eax, ecx
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and eax, 10011111b *65536*256 + 0xffffff ; caching enabled
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mov cr0, eax
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jmp pword os_code:B32 ; jmp to enable 32 bit mode
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align 8
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tmp_gdt:
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dw 23
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dd tmp_gdt+0x10000
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dw 0
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dw 0xffff
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dw 0x0000
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db 0x00
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dw 11011111b *256 +10011010b
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db 0x00
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dw 0xffff
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dw 0x0000
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db 0x00
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dw 11011111b *256 +10010010b
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db 0x00
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include "data16.inc"
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if ~ lang eq sp
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diff16 "end of bootcode",0,$+0x10000
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; In bios boot mode the kernel code below is appended to bootbios.bin file.
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; That is a loading and initialization code that also draws the blue screen
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; menu with svn revision number near top right corner of the screen. This fasm
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; preprocessor code searches for '****' signature inside bootbios.bin and
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; places revision number there.
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if ~ defined UEFI
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bootbios:
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file 'bootbios.bin'
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if __REV__ > 0
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cur_pos = 0
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cnt = 0
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repeat $ - bootbios
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load a byte from %
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if a = '*'
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cnt = cnt + 1
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else
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cnt = 0
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end if
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if cnt = 4
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cur_pos = % - 1
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break
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end if
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end repeat
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store byte ' ' at cur_pos + 1
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rev_var = __REV__
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while rev_var > 0
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store byte rev_var mod 10 + '0' at cur_pos
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cur_pos = cur_pos - 1
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rev_var = rev_var / 10
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end while
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store byte ' ' at cur_pos
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store dword ' SVN' at cur_pos - 4
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end if
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end if
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use32
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@@ -770,7 +694,7 @@ endg
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call PIT_init
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; Register ramdisk file system
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cmp [boot_dev+OS_BASE+0x10000], 1
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cmp byte [BOOT_DEV+OS_BASE+0x10000], 1
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je @f
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call register_ramdisk
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@@ -861,7 +785,7 @@ include 'detect/dev_fd.inc'
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include 'detect/init_ata.inc'
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;-----------------------------------------------------------------------------
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if 0
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mov ax, [OS_BASE+0x10000+bx_from_load]
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mov ax, [OS_BASE+BOOT_BX_FROM_LOAD]
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cmp ax, 'r1'; if using not ram disk, then load librares and parameters {SPraid.simba}
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je no_lib_load
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@@ -1101,6 +1025,7 @@ endg
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first_app_found:
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; START MULTITASKING
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preboot_blogesc = 0 ; start immediately after bootlog
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; A 'All set - press ESC to start' messages if need
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if preboot_blogesc
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