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Rev 5790 Rev 7121
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;;  KolibriOS 16-bit loader,                                    ;;
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;;  KolibriOS 16-bit loader,                                    ;;
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;;                        based on bootcode for MenuetOS        ;;
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;;                        based on bootcode for MenuetOS        ;;
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;;                                                              ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 5790 $
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$Revision: 7121 $
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cfgmanager:
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cfgmanager:
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; settings:
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; settings:
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; a) preboot_graph = graphical mode
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; a) preboot_graph = graphical mode
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;    preboot_gprobe = probe this mode?
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;    preboot_gprobe = probe this mode?
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; b) preboot_biosdisk  = use BIOS disks through V86 emulation? // (earlier was: preboot_dma  = use DMA access?)
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; b) preboot_biosdisk  = use BIOS disks through V86 emulation? // (earlier was: preboot_dma  = use DMA access?)
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; c) preboot_debug = duplicates kernel debug output to the screen // (earlier was: preboot_vrrm = use VRR?)
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; c) preboot_debug = duplicates kernel debug output to the screen
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;    // VRR is an obsolete functionality, used only with CRT monitors: increase display frequency by reducing screen resolution
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; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded?
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; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded?
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; e) preboot_device = from where to boot?
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; e) preboot_device = from where to boot?
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; determine default settings
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; determine default settings
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; following 4 lines set variables to 1 if its current value is 0
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; following 4 lines set variables to 1 if its current value is 0
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        cmp     byte [di+preboot_dma-preboot_device], 1
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        cmp     byte [di+preboot_dma-preboot_device], 1
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        adc     byte [di+preboot_dma-preboot_device], 0
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        adc     byte [di+preboot_dma-preboot_device], 0
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        cmp     byte [di+preboot_launcher-preboot_device], 1        ; Start LAUNCHER by default
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        cmp     byte [di+preboot_launcher-preboot_device], 1        ; Start LAUNCHER by default
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        adc     byte [di+preboot_launcher-preboot_device], 0
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        adc     byte [di+preboot_launcher-preboot_device], 0
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;        cmp     byte [di+preboot_biosdisk-preboot_device], 1
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;        adc     byte [di+preboot_biosdisk-preboot_device], 0
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;; default value for VRR is OFF
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;        cmp     byte [di+preboot_vrrm-preboot_device], 0
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;        jnz    @f
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;        mov    byte [di+preboot_vrrm-preboot_device], 2
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;@@:
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; notify user
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        _setcursor 5,2
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        _setcursor 5,2
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        mov     si, linef
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        mov     si, linef
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        call    printplain
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        call    printplain
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        call    draw_current_vmode
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        call    draw_current_vmode
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        mov     si, usebd_msg
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        mov     si, usebd_msg
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        cmp     [preboot_biosdisk], 1
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        cmp     [preboot_biosdisk], 1
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        call    .say_on_off
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;        mov     si, vrrm_msg
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;        cmp     [preboot_vrrm], 1
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;        call    .say_on_off
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        call    .say_on_off
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        mov     si, debug_mode_msg
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        mov     si, debug_mode_msg
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        cmp     [preboot_debug], 1
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        cmp     [preboot_debug], 1
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        call    .say_on_off
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        call    .say_on_off
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        mov     si, launcher_msg
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        mov     si, launcher_msg
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        jz      .change_a
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        jz      .change_a
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        cmp     al, 'q'         ; Trick to make 'A' key on azerty keyboard work
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        cmp     al, 'q'         ; Trick to make 'A' key on azerty keyboard work
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        je      .change_a
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        je      .change_a
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        cmp     al, 'b'         ; use BIOS disks? // (selecting YES will make BIOS disks visible as /bd)
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        cmp     al, 'b'         ; use BIOS disks? // (selecting YES will make BIOS disks visible as /bd)
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        jz      .change_b
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        jz      .change_b
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        cmp     al, 'c'         ; load kernel in debug mode?  // (earlier was: use VRR?)
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        cmp     al, 'c'         ; load kernel in debug mode?
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        jz      .change_c
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        jz      .change_c
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        cmp     al, 'd'         ; start launcher after kernel is loaded?
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        cmp     al, 'd'         ; start launcher after kernel is loaded?
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        jz      .change_d
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        jz      .change_d
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        cmp     al, 'e'         ; select boot origin
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        cmp     al, 'e'         ; select boot origin
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        jnz     .show_remarks
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        jnz     .show_remarks
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;        call    getkey
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;        call    getkey
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;        mov     [preboot_dma], al
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;        mov     [preboot_dma], al
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        _ask_question ask_bd,'12',preboot_biosdisk              ; range accepted for answer: 1-2
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        _ask_question ask_bd,'12',preboot_biosdisk              ; range accepted for answer: 1-2
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        _setcursor 11,0
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        _setcursor 11,0
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        jmp     .d
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        jmp     .d
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;.change_c:                     ; //  VRR is an obsolete functionality, used only with CRT monitors
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;        _setcursor 16,0
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;        mov     si, vrrmprint
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;        call    print
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;        mov     bx, '12'       ; range accepted for answer: 1-2
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;        call    getkey
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;        mov     [preboot_vrrm], al
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;        _setcursor 12,0
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;        jmp     .d
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.change_c:                      ; c) preboot_debug = duplicates kernel debug output to the screen
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.change_c:                      ; c) preboot_debug = duplicates kernel debug output to the screen
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        _ask_question ask_debug,'12',preboot_debug              ; range accepted for answer: 1-2
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        _ask_question ask_debug,'12',preboot_debug              ; range accepted for answer: 1-2
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        _setcursor 12,0
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        _setcursor 12,0
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        jmp     .d
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        jmp     .d
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.change_d:                      ; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded?
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.change_d:                      ; d) preboot_launcher = start the first app (right now it's LAUNCHER) after kernel is loaded?
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; DMA ACCESS TO HD
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; DMA ACCESS TO HD
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        mov     al, [preboot_dma]
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        mov     al, [preboot_dma]
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        mov     [es:BOOT_DMA], al
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;; VRR_M USE
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;
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;        mov     al,[preboot_vrrm]
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;        mov     [es:BOOT_VRR], al              ;// 0x9030
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        mov     [es:BOOT_DMA], al
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; Set kernel DEBUG mode - if nonzero, duplicates debug output to the screen.
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; Set kernel DEBUG mode - if nonzero, duplicates debug output to the screen.
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        mov     al, [preboot_debug]
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        mov     al, [preboot_debug]