275 lines
5.9 KiB
PHP
275 lines
5.9 KiB
PHP
$Revision$
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; ;;
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;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; Shutdown for Menuet ;;
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;; ;;
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;; Distributed under General Public License ;;
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;; See file COPYING for details. ;;
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;; Copyright 2003 Ville Turjanmaa ;;
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;; ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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align 4
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pr_mode_exit:
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; setup stack
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mov ax, 0x3000
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mov ss, ax
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mov esp, 0x0EC00
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; setup ds
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push cs
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pop ds
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lidt [old_ints_h]
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;remap IRQs
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mov al,0x11
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out 0x20,al
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call rdelay
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out 0xA0,al
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call rdelay
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mov al,0x08
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out 0x21,al
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call rdelay
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mov al,0x70
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out 0xA1,al
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call rdelay
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mov al,0x04
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out 0x21,al
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call rdelay
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mov al,0x02
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out 0xA1,al
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call rdelay
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mov al,0x01
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out 0x21,al
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call rdelay
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out 0xA1,al
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call rdelay
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mov al,0xB8
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out 0x21,al
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call rdelay
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mov al,0xBD
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out 0xA1,al
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sti
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temp_3456:
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xor ax,ax
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mov es,ax
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mov al,byte [es:0x9030]
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cmp al,1
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jl nbw
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cmp al,4
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jle nbw32
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nbw:
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in al,0x60
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call pause_key
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cmp al,6
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jae nbw
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mov bl,al
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nbw2:
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in al,0x60
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call pause_key
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cmp al,bl
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je nbw2
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cmp al,240 ;ax,240
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jne nbw31
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mov al,bl
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dec ax
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jmp nbw32
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nbw31:
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add bl,128
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cmp al,bl
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jne nbw
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sub al,129
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nbw32:
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dec ax ; 1 = write floppy
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js nbw
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jnz no_floppy_write
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call floppy_write
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jmp temp_3456 ;nbw
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no_floppy_write:
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dec ax ; 2 = power off
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jnz no_apm_off
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call APM_PowerOff
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jmp $
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no_apm_off:
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dec ax ; 3 = reboot
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jnz restart_kernel ; 4 = restart kernel
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push 0x40
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pop ds
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mov word[0x0072],0x1234
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jmp 0xF000:0xFFF0
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pause_key:
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mov cx,100
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pause_key_1:
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loop pause_key_1
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ret
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rdelay:
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ret
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floppy_write: ; write diskette image to physical floppy
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cmp [flm],byte 1
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je fwwritedone
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mov [flm],byte 1
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xor ax, ax ; reset drive
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xor dx, dx
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int 0x13
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mov cx,0x0001 ; startcyl,startsector
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xor dx, dx ; starthead,drive
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mov ax, 80*2 ; read no of sect
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fwwrites:
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push ax
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; move 1mb+ -> 0:a000
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pusha
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mov si, fwmovedesc
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mov cx,256*18
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mov ah,0x87
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push ds
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pop es
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int 0x15
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add dword [fwmovedesc+0x12], 512*18
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popa
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xor si,si
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mov es,si
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fwnewwrite:
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mov bx,0xa000 ; es:bx -> data area
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mov ax,0x0300+18 ; read, no of sectors to read
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int 0x13
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test ah, ah
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jz fwgoodwrite
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inc si
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cmp si,10
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jnz fwnewwrite
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; can't access diskette - return
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pop ax
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ret
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fwgoodwrite:
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inc dh
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cmp dh,2
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jnz fwbb2
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mov dh,0
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inc ch
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fwbb2:
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pop ax
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dec ax
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jnz fwwrites
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ret
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APM_PowerOff:
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mov ax, 5304h
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xor bx, bx
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int 15h
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;!!!!!!!!!!!!!!!!!!!!!!!!
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mov ax,0x5300
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xor bx,bx
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int 0x15
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push ax
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mov ax,0x5301
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xor bx,bx
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int 0x15
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mov ax,0x5308
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mov bx,1
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mov cx,bx
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int 0x15
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mov ax,0x530E
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xor bx,bx
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pop cx
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int 0x15
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mov ax,0x530D
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mov bx,1
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mov cx,bx
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int 0x15
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mov ax,0x530F
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mov bx,1
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mov cx,bx
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int 0x15
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mov ax,0x5307
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mov bx,1
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mov cx,3
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int 0x15
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;!!!!!!!!!!!!!!!!!!!!!!!!
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fwwritedone:
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ret
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restart_kernel:
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mov ax,0x0003 ; set text mode for screen
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int 0x10
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jmp 0x4000:0000
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restart_kernel_4000:
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cli
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push ds
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pop es
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mov cx, 0x8000
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push cx
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mov ds, cx
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xor si, si
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xor di, di
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rep movsw
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push 0x9000
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pop ds
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push 0x2000
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pop es
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pop cx
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rep movsw
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wbinvd ; write and invalidate cache
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mov al, 00110100b
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out 43h, al
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jcxz $+2
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mov al, 0xFF
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out 40h, al
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jcxz $+2
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out 40h, al
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jcxz $+2
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sti
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; (hint by Black_mirror)
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; We must read data from keyboard port,
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; because there may be situation when previous keyboard interrupt is lost
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; (due to return to real mode and IRQ reprogramming)
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; and next interrupt will not be generated (as keyboard waits for handling)
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in al, 0x60
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; bootloader interface
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push 0x1000
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pop ds
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mov si, kernel_restart_bootblock
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mov ax, 'KL'
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jmp 0x1000:0000
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