WebSVN – Kolibri OS – Diff – /kernel/trunk/boot/bootvesa.inc


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;;                                                              ;;
;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License    ;;
;;                                                              ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
$Revision: 3999 $
 
struc VBE_VGAInfo {
  .VESASignature          dd ?    ; char
  .VESAVersion            dw ?    ; short
  .OemStringPtr           dd ?    ; char *
  .Capabilities           dd ?    ; ulong
  .VideoModePtr           dd ?    ; ulong
  .TotalMemory            dw ?    ; short
  ; VBE 2.0+
  .OemSoftwareRev         db ?    ; short
  .OemVendorNamePtr       dw ?    ; char *
  .OemProductNamePtr      dw ?    ; char *
  .OemProductRevPtr       dw ?    ; char *
  .reserved               rb 222  ; char
  .OemData                rb 256  ; char
}
 
struc VBE_ModeInfo {
  .ModeAttributes         dw ?    ; short
  .WinAAttributes         db ?    ; char
  .WinBAttributes         db ?    ; char
  .WinGranularity         dw ?    ; short
  .WinSize                dw ?    ; short
  .WinASegment            dw ?    ; ushort
  .WinBSegment            dw ?    ; ushort
  .WinFuncPtr             dd ?    ; void *
  .BytesPerScanLine       dw ?    ; short
  .XRes                   dw ?    ; short
  .YRes                   dw ?    ; short
  .XCharSize              db ?    ; char
  .YCharSize              db ?    ; char
  .NumberOfPlanes         db ?    ; char
  .BitsPerPixel           db ?    ; char
  .NumberOfBanks          db ?    ; char
  .MemoryModel            db ?    ; char
  .BankSize               db ?    ; char
  .NumberOfImagePages     db ?    ; char
  .res1                   db ?    ; char
  .RedMaskSize            db ?    ; char
  .RedFieldPosition       db ?    ; char
  .GreenMaskSize          db ?    ; char
  .GreenFieldPosition     db ?    ; char
  .BlueMaskSize           db ?    ; char
  .BlueFieldPosition      db ?    ; char
  .RsvedMaskSize          db ?    ; char
  .RsvedFieldPosition     db ?    ; char
  .DirectColorModeInfo    db ?    ; char ; MISSED IN THIS TUTORIAL!! SEE ABOVE
  ; VBE 2.0+
  .PhysBasePtr            dd ?    ; ulong
  .OffScreenMemOffset     dd ?    ; ulong
  .OffScreenMemSize       dw ?    ; short
  ; VBE 3.0+
  .LinbytesPerScanLine    dw ?    ; short
  .BankNumberOfImagePages db ?    ; char
  .LinNumberOfImagePages  db ?    ; char
  .LinRedMaskSize         db ?    ; char
  .LinRedFieldPosition    db ?    ; char
  .LingreenMaskSize       db ?    ; char
  .LinGreenFieldPosition  db ?    ; char
  .LinBlueMaskSize        db ?    ; char
  .LinBlueFieldPosition   db ?    ; char
  .LinRsvdMaskSize        db ?    ; char
  .LinRsvdFieldPosition   db ?    ; char
  .MaxPixelClock          dd ?    ; ulong
  .res2                   rb 190  ; char
}
 
virtual at $A000
  vi VBE_VGAInfo
  mi VBE_ModeInfo
modes_table:
end virtual
cursor_pos  dw 0         ;временное хранение курсора.
cursor_pos_old  dw 0
home_cursor dw 0    ;current shows rows a table
end_cursor  dw 0     ;end of position current shows rows a table
scroll_start dw 0    ;start position of scroll bar
scroll_end  dw 0     ;end position of scroll bar
long_v_table equ 9   ;long of visible video table
size_of_step equ 10
scroll_area_size equ (long_v_table-2)
int2str:
        dec     bl
        jz      @f
        xor     edx, edx
        div     ecx
        push    edx
        call    int2str
        pop     eax
    @@:
        or      al, 0x30
        mov     [ds:di], al
        inc     di
        ret
 
int2strnz:
        cmp     eax, ecx
        jb      @f
        xor     edx, edx
        div     ecx
        push    edx
        call    int2strnz
        pop     eax
    @@:
        or      al, 0x30
        mov     [es:di], al
        inc     di
        ret
 
;-------------------------------------------------------
;Write message about incorrect v_mode and write message about jmp on swith v_mode
v_mode_error:
        _setcursor 19,2
        mov     si, fatalsel
        call    printplain
        _setcursor 20,2
        mov     si, pres_key
        call    printplain
        xor     eax, eax
        int     16h
        jmp     cfgmanager.d
;-------------------------------------------------------
;
 
 
 
;-------------------------------------------------------
print_vesa_info:
        _setcursor 5,2
 
        mov     [es:vi.VESASignature], 'VBE2'
        mov     ax, 0x4F00
        mov     di, vi     ;0xa000
        int     0x10
        or      ah, ah
        jz      @f
        mov     [es:vi.VESASignature], 'VESA'
        mov     ax, $4F00
        mov     di, vi
        int     0x10
        or      ah, ah
        jnz     .exit
  @@:
        cmp     [es:vi.VESASignature], 'VESA'
        jne     .exit
        cmp     [es:vi.VESAVersion], 0x0100
        jb      .exit
        jmp     .vesaok2
 
  .exit:
        mov     si, novesa
        call    printplain
        ret
 
  .vesaok2:
        mov     ax, [es:vi.VESAVersion]
        add     ax, '00'
 
        mov     [s_vesa.ver], ah
        mov     [s_vesa.ver+2], al
        mov     si, s_vesa
        call    printplain
 
        _setcursor 4,2
        mov     si, word[es:vi.OemStringPtr]
        mov     di, si
 
        push    ds
        mov     ds, word[es:vi.OemStringPtr+2]
        call    printplain
        pop     ds
 
        ret
;-----------------------------------------------------------------------------
 
calc_vmodes_table:
        pushad
 
;        push    0
;        pop     es
 
        lfs     si, [es:vi.VideoModePtr]
 
        mov     bx, modes_table
;save no vesa mode of work 320x200, EGA/CGA 256 жўҐв®ў and 640x480, VGA 16 жўҐв®ў
        mov     word [es:bx], 640
        mov     word [es:bx+2], 480
        mov     word [es:bx+6], 0x13
        
        mov     word [es:bx+10], 640
        mov     word [es:bx+12], 480
        mov     word [es:bx+16], 0x12
        add     bx, 20
  .next_mode:
        mov     cx, word [fs:si]; mode number
        cmp     cx, -1
        je      .modes_ok.2
 
        mov     ax, 0x4F01
        mov     di, mi
        int     0x10
 
        or      ah, ah
        jnz     .modes_ok.2;vesa_info.exit
 
        test    [es:mi.ModeAttributes], 00000001b  ;videomode support ?
        jz      @f
        test    [es:mi.ModeAttributes], 00010000b  ;picture ?
        jz      @f
        test    [es:mi.ModeAttributes], 10000000b  ;LFB ?
        jz      @f
 
        cmp     [es:mi.BitsPerPixel], 24   ;It show only videomodes to have support 24 and 32 bpp
        jb      @f
 
;        cmp     [es:mi.BitsPerPixel],16
;        jne     .l0
;        cmp     [es:mi.GreenMaskSize],5
;        jne     .l0
;        mov     [es:mi.BitsPerPixel],15
 
 
.l0:
        cmp     [es:mi.XRes], 640
        jb      @f
        cmp     [es:mi.YRes], 480
        jb      @f
;        cmp     [es:mi.BitsPerPixel],8
;        jb      @f
 
        mov     ax, [es:mi.XRes]
        mov     [es:bx+0], ax              ; +0[2] : resolution X
        mov     ax, [es:mi.YRes]
        mov     [es:bx+2], ax              ; +2[2] : resolution Y
        mov     ax, [es:mi.ModeAttributes]
        mov     [es:bx+4], ax              ; +4[2] : attributes
 
        cmp     [s_vesa.ver], '2'
;        jb      .lp1
        jb      @f    ; We do not use Vesa 1.2 mode is now
 
        or      cx, 0x4000 ; use LFB
.lp1:
        mov     [es:bx+6], cx              ; +6 : mode number
        movzx   ax, byte [es:mi.BitsPerPixel]
        mov     word [es:bx+8], ax              ; +8 : bits per pixel
        add     bx, size_of_step                ; size of record
 
    @@:
        add     si, 2
        jmp     .next_mode
 
  .modes_ok.2:
 
        mov     word[es:bx], -1 ;end video table
        mov     word[end_cursor], bx    ;save end cursor position
;;;;;;;;;;;;;;;;;;
;Sort array
;        mov     si,modes_table
;.new_mode:
;        mov     ax,word [es:si]
;        cmp     ax,-1
;        je      .exxit
;        add     ax,word [es:si+2]
;        add     ax,word [es:si+8]
;        mov     bp,si
;.again:
;        add     bp,12
;        mov     bx,word [es:bp]
;        cmp     bx,-1
;        je      .exit
;        add     bx,word [es:bp+2]
;        add     bx,word [es:bp+8]
;
;        cmp     ax,bx
;        ja      .loops
;        jmp     .again
;.loops:
;        push    dword [es:si]
;        push    dword [es:si+4]
;        push    dword [es:si+8]
;        push    dword [es:bp]
;        push    dword [es:bp+4]
;        push    dword [es:bp+8]
;
;        pop     dword [es:si+8]
;        pop     dword [es:si+4]
;        pop     dword [es:si]
;        pop     dword [es:bp+8]
;        pop     dword [es:bp+4]
;        pop     dword [es:bp]
;        jmp     .new_mode
;
;.exit:  add     si,12
;        jmp     .new_mode
;.exxit:
        popad
        ret
 
;-----------------------------------------------------------------------------
 
draw_current_vmode:
        push    0
        pop     es
 
        mov     si, word [cursor_pos]
 
        cmp     word [es:si+6], 0x12
        je      .no_vesa_0x12
 
        cmp     word [es:si+6], 0x13
        je      .no_vesa_0x13
 
if defined extended_primary_loader
        mov     di, config_file_variables
else
        mov     di, loader_block_error
end if
        movzx   eax, word[es:si+0]
        mov     ecx, 10
        call    int2strnz
        mov     byte[es:di], 'x'
        inc     di
        movzx   eax, word[es:si+2]
        call    int2strnz
        mov     byte[es:di], 'x'
        inc     di
        movzx   eax, word[es:si+8]
        call    int2strnz
        mov     dword[es:di], 0x00000d0a
if defined extended_primary_loader
        mov     si, config_file_variables
else
        mov     si, loader_block_error
end if
        push    ds
        push    es
        pop     ds
        call    printplain
        pop     ds
        ret
.no_vesa_0x13:
        mov     si, mode0
        jmp     .print
.no_vesa_0x12:
        mov     si, mode9
.print:
        call    printplain
        ret
;-----------------------------------------------------------------------------
check_first_parm:
if defined extended_primary_loader
        mov     cx, [number_vm]
        jcxz    .novbemode
        mov     si, modes_table
.findvbemode:
        cmp     [es:si+6], cx
        jnz     @f
        cmp     word [es:si+8], 32
        je      .ok_found_mode
        cmp     word [es:si+8], 24
        je      .ok_found_mode
@@:
        add     si, size_of_step
        cmp     word [es:si], -1
        jnz     .findvbemode
.novbemode:
        mov     ax, [x_save]
        test    ax, ax
        jz      .zerro
        mov     bx, [y_save]
        mov     si, modes_table
        call    .loops
        test    ax, ax
        jz      .ok_found_mode
else
        mov     si, word [preboot_graph]
        test    si, si
        jnz     .no_zero         ;if no zero
end if
.zerro:
;        mov     ax,modes_table
;        mov     word [cursor_pos],ax
;        mov     word [home_cursor],ax
;        mov     word [preboot_graph],ax
;SET default video of mode first probe will fined a move of work 1024x768@32
 
        mov     ax, 1024
        mov     bx, 768
        mov     si, modes_table
        call    .loops
        test    ax, ax
        jz      .ok_found_mode
        mov     ax, 800
        mov     bx, 600
        mov     si, modes_table
        call    .loops
        test    ax, ax
        jz      .ok_found_mode
        mov     ax, 640
        mov     bx, 480
        mov     si, modes_table
        call    .loops
        test    ax, ax
        jz      .ok_found_mode
 
        mov     si, modes_table
if ~ defined extended_primary_loader
        jmp     .ok_found_mode
 
 
 
.no_zero:
        mov     bp, word [number_vm]
        cmp     bp, word [es:si+6]
        jz      .ok_found_mode
        mov     ax, word [x_save]
        mov     bx, word [y_save]
        mov     si, modes_table
        call    .loops
        test    ax, ax
        jz      .ok_found_mode
 
        mov     si, modes_table
;        cmp     ax,modes_table
;        jb      .zerro           ;check on correct if bellow
;        cmp     ax,word [end_cursor]
;        ja      .zerro           ;check on correct if anymore
end if
 
.ok_found_mode:
        mov     word [home_cursor], si
;        mov     word [cursor_pos],si
        mov     word [preboot_graph], si
        mov     ax, si
 
        mov     ecx, long_v_table
 
.loop:
        add     ax, size_of_step
        cmp     ax, word [end_cursor]
        jae     .next_step
        loop    .loop
.next_step:
        sub     ax, size_of_step*long_v_table
        cmp     ax, modes_table
        jae     @f
        mov     ax, modes_table
@@:
 
        mov     word [home_cursor], ax
        mov     si, [preboot_graph]
        mov     word [cursor_pos], si
 
        push    word [es:si]
        pop     word [x_save]
        push    word [es:si+2]
        pop     word [y_save]
        push    word [es:si+6]
        pop     word [number_vm]
 
        ret
;;;;;;;;;;;;;;;;;;;;;;;;;;;
.loops:
        cmp     ax, word [es:si]
        jne     .next
        cmp     bx, word [es:si+2]
        jne     .next
        cmp     word [es:si+8], 32
        je      .ok
        cmp     word [es:si+8], 24
        je      .ok
.next:
        add     si, size_of_step
        cmp     word [es:si], -1
        je      .exit
        jmp     .loops
.ok:
        xor     ax, ax
        ret
.exit:
        or      ax, -1
        ret
 
 
;-----------------------------------------------------------------------------
 
;default_vmode:
 
;-----------------------------------------------------------------------------
draw_vmodes_table:
        _setcursor 9, 2
        mov     si, gr_mode
        call    printplain
 
        mov     si, _st
        call    printplain
 
        push    word [cursor_pos]
        pop     ax
        push    word [home_cursor]
        pop     si
        mov     cx, si
 
        cmp     ax, si
        je      .ok
        jb      .low
 
 
        add     cx, size_of_step*long_v_table
 
        cmp     ax, cx
        jb      .ok
 
        sub     cx, size_of_step*long_v_table
        add     cx, size_of_step
        cmp     cx, word[end_cursor]
        jae     .ok
        add     si, size_of_step
        push    si
        pop     word [home_cursor]
        jmp     .ok
 
 
.low:
        sub     cx, size_of_step
        cmp     cx, modes_table
        jb      .ok
        push    cx
        push    cx
        pop     word [home_cursor]
        pop     si
 
 
.ok:
; calculate scroll position
        push    si
        mov     ax, [end_cursor]
        sub     ax, modes_table
        mov     bx, size_of_step
        cwd
        div     bx
        mov     si, ax          ; si = size of list
        mov     ax, [home_cursor]
        sub     ax, modes_table
        cwd
        div     bx
        mov     di, ax
        mov     ax, scroll_area_size*long_v_table
        cwd
        div     si
        test    ax, ax
        jnz     @f
        inc     ax
@@:
        cmp     al, scroll_area_size
        jb      @f
        mov     al, scroll_area_size
@@:
        mov     cx, ax
; cx = scroll height
; calculate scroll pos
        xor     bx, bx          ; initialize scroll pos
        sub     al, scroll_area_size+1
        neg     al
        sub     si, long_v_table-1
        jbe     @f
        mul     di
        div     si
        mov     bx, ax
@@:
        inc     bx
        imul    ax, bx, size_of_step
        add     ax, [home_cursor]
        mov     [scroll_start], ax
        imul    cx, size_of_step
        add     ax, cx
        mov     [scroll_end], ax
        pop     si
        mov     bp, long_v_table              ;show rows
.@@_next_bit:
;clear cursor
        mov     ax, '  '
        mov     word[ds:_r1+21], ax
        mov     word[ds:_r1+50], ax
 
        mov     word[ds:_r2+21], ax
        mov     word[ds:_r2+45], ax
 
        mov     word[ds:_rs+21], ax
        mov     word[ds:_rs+46], ax
; draw string
        cmp     word [es:si+6], 0x12
        je      .show_0x12
        cmp     word [es:si+6], 0x13
        je      .show_0x13
 
        movzx   eax, word[es:si]
        cmp     ax, -1
        je      .@@_end
        mov     di, _rs+23
        mov     ecx, 10
        mov     bl, 4
        call    int2str
        movzx   eax, word[es:si+2]
        inc     di
        mov     bl, 4
        call    int2str
 
        movzx   eax, word[es:si+8]
        inc     di
        mov     bl, 2
        call    int2str
 
        cmp     si, word [cursor_pos]
        jne     .next
;draw   cursor
        mov     word[ds:_rs+21], '>>'
        mov     word[ds:_rs+46], '<<'
 
 
 
.next:
        push    si
        mov     si, _rs
.@@_sh:
; add to the string pseudographics for scrollbar
        pop     bx
        push    bx
        mov     byte [si+53], ' '
        cmp     bx, [scroll_start]
        jb      @f
        cmp     bx, [scroll_end]
        jae     @f
        mov     byte [si+53], 0xDB ; filled bar
@@:
        push    bx
        add     bx, size_of_step
        cmp     bx, [end_cursor]
        jnz     @f
        mov     byte [si+53], 31 ; 'down arrow' symbol
@@:
        sub     bx, [home_cursor]
        cmp     bx, size_of_step*long_v_table
        jnz     @f
        mov     byte [si+53], 31 ; 'down arrow' symbol
@@:
        pop     bx
        cmp     bx, [home_cursor]
        jnz     @f
        mov     byte [si+53], 30 ; 'up arrow' symbol
@@:
        call    printplain
        pop     si
        add     si, size_of_step
 
        dec     bp
        jnz     .@@_next_bit
 
.@@_end:
        mov     si, _bt
        call    printplain
        ret
.show_0x13:
        push    si
 
        cmp     si, word [cursor_pos]
        jne     @f
        mov     word[ds:_r1+21], '>>'
        mov     word[ds:_r1+50], '<<'
@@:
        mov     si, _r1
        jmp     .@@_sh
.show_0x12:
        push    si
        cmp     si, word [cursor_pos]
        jne     @f
 
        mov     word[ds:_r2+21], '>>'
        mov     word[ds:_r2+45], '<<'
@@:
        mov     si, _r2
        jmp     .@@_sh
 
;-----------------------------------------------------------------------------
;Clear arrea of current video page (0xb800)
clear_vmodes_table:
        pusha
       ; draw frames
        push    es
        push    0xb800
        pop     es
        mov     di, 1444
        xor     ax, ax
        mov     ah, 1*16+15
        mov     cx, 77
        mov     bp, 12
.loop_start:
        rep stosw
        mov     cx, 77
        add     di, 6
        dec     bp
        jns     .loop_start
        pop     es
        popa
        ret
 
;-----------------------------------------------------------------------------
 
set_vmode:
        push    0 ;0;x1000
        pop     es
 
        mov     si, word [preboot_graph]           ;[preboot_graph]
        mov     cx, word [es:si+6]           ; number of mode
        
 
        mov     ax, word [es:si+0]           ; resolution X
        mov     bx, word [es:si+2]           ; resolution Y
 
 
        mov     word [es:BOOT_X_RES], ax             ; resolution X
        mov     word [es:BOOT_Y_RES], bx             ; resolution Y
        mov     word [es:BOOT_VESA_MODE], cx             ; number of mode
 
        cmp     cx, 0x12
        je      .mode0x12_0x13
        cmp     cx, 0x13
        je      .mode0x12_0x13
 
 
;        cmp     byte [s_vesa.ver], '2'
;        jb      .vesa12
 
;  VESA 2 and Vesa 3
 
        mov     ax, 0x4f01
        and     cx, 0xfff
        mov     di, mi;0xa000
        int     0x10
        ; LFB
        mov     eax, [es:mi.PhysBasePtr];di+0x28]
        mov     [es:BOOT_LFB], eax
        ; ---- vbe voodoo
        BytesPerLine equ 0x10
        mov     ax, [es:di+BytesPerLine]
        mov     [es:BOOT_PITCH], ax
        ; BPP
        cmp     [es:mi.BitsPerPixel], 16
        jne     .l0
        cmp     [es:mi.GreenMaskSize], 5
        jne     .l0
        mov     [es:mi.BitsPerPixel], 15
.l0:
        mov     al, byte [es:di+0x19]
        mov     [es:BOOT_BPP], al
        jmp     .exit
 
.mode0x12_0x13:
        mov     byte [es:BOOT_BPP], 32
        or      dword [es:BOOT_LFB], 0xFFFFFFFF; 0x800000
 
 
;  VESA 1.2 PM BANK SWITCH ADDRESS
 
;.vesa12:
;        mov     ax, 0x4f0A
;        xor     bx, bx
;        int     0x10
;        xor     eax, eax
;        xor     ebx, ebx
;        mov     ax, es
;        shl     eax, 4
;        mov     bx, di
;        add     eax, ebx
;        movzx   ebx, word[es:di]
;        add     eax, ebx
;        push    0x0000
;        pop     es
;        mov     [es:0x9014], eax
  .exit:
        ret
 
;=============================================================================
;=============================================================================
;=============================================================================
@@:
>
@@:
>
@@:
>
@@:
>
 
 
 
.next:
>
 
 
 
.next:
>

Rev 3795	Rev 3999
1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2	;; ;;	2	;; ;;
3	;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;;	3	;; Copyright (C) KolibriOS team 2004-2012. All rights reserved. ;;
4	;; Distributed under terms of the GNU General Public License ;;	4	;; Distributed under terms of the GNU General Public License ;;
5	;; ;;	5	;; ;;
6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	6	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
7		7
8	$Revision: 3795 $	8	$Revision: 3999 $
9		9
10	struc VBE_VGAInfo {	10	struc VBE_VGAInfo {
11	.VESASignature dd ? ; char	11	.VESASignature dd ? ; char
12	.VESAVersion dw ? ; short	12	.VESAVersion dw ? ; short
13	.OemStringPtr dd ? ; char *	13	.OemStringPtr dd ? ; char *
14	.Capabilities dd ? ; ulong	14	.Capabilities dd ? ; ulong
15	.VideoModePtr dd ? ; ulong	15	.VideoModePtr dd ? ; ulong
16	.TotalMemory dw ? ; short	16	.TotalMemory dw ? ; short
17	; VBE 2.0+	17	; VBE 2.0+
18	.OemSoftwareRev db ? ; short	18	.OemSoftwareRev db ? ; short
19	.OemVendorNamePtr dw ? ; char *	19	.OemVendorNamePtr dw ? ; char *
20	.OemProductNamePtr dw ? ; char *	20	.OemProductNamePtr dw ? ; char *
21	.OemProductRevPtr dw ? ; char *	21	.OemProductRevPtr dw ? ; char *
22	.reserved rb 222 ; char	22	.reserved rb 222 ; char
23	.OemData rb 256 ; char	23	.OemData rb 256 ; char
24	}	24	}
25		25
26	struc VBE_ModeInfo {	26	struc VBE_ModeInfo {
27	.ModeAttributes dw ? ; short	27	.ModeAttributes dw ? ; short
28	.WinAAttributes db ? ; char	28	.WinAAttributes db ? ; char
29	.WinBAttributes db ? ; char	29	.WinBAttributes db ? ; char
30	.WinGranularity dw ? ; short	30	.WinGranularity dw ? ; short
31	.WinSize dw ? ; short	31	.WinSize dw ? ; short
32	.WinASegment dw ? ; ushort	32	.WinASegment dw ? ; ushort
33	.WinBSegment dw ? ; ushort	33	.WinBSegment dw ? ; ushort
34	.WinFuncPtr dd ? ; void *	34	.WinFuncPtr dd ? ; void *
35	.BytesPerScanLine dw ? ; short	35	.BytesPerScanLine dw ? ; short
36	.XRes dw ? ; short	36	.XRes dw ? ; short
37	.YRes dw ? ; short	37	.YRes dw ? ; short
38	.XCharSize db ? ; char	38	.XCharSize db ? ; char
39	.YCharSize db ? ; char	39	.YCharSize db ? ; char
40	.NumberOfPlanes db ? ; char	40	.NumberOfPlanes db ? ; char
41	.BitsPerPixel db ? ; char	41	.BitsPerPixel db ? ; char
42	.NumberOfBanks db ? ; char	42	.NumberOfBanks db ? ; char
43	.MemoryModel db ? ; char	43	.MemoryModel db ? ; char
44	.BankSize db ? ; char	44	.BankSize db ? ; char
45	.NumberOfImagePages db ? ; char	45	.NumberOfImagePages db ? ; char
46	.res1 db ? ; char	46	.res1 db ? ; char
47	.RedMaskSize db ? ; char	47	.RedMaskSize db ? ; char
48	.RedFieldPosition db ? ; char	48	.RedFieldPosition db ? ; char
49	.GreenMaskSize db ? ; char	49	.GreenMaskSize db ? ; char
50	.GreenFieldPosition db ? ; char	50	.GreenFieldPosition db ? ; char
51	.BlueMaskSize db ? ; char	51	.BlueMaskSize db ? ; char
52	.BlueFieldPosition db ? ; char	52	.BlueFieldPosition db ? ; char
53	.RsvedMaskSize db ? ; char	53	.RsvedMaskSize db ? ; char
54	.RsvedFieldPosition db ? ; char	54	.RsvedFieldPosition db ? ; char
55	.DirectColorModeInfo db ? ; char ; MISSED IN THIS TUTORIAL!! SEE ABOVE	55	.DirectColorModeInfo db ? ; char ; MISSED IN THIS TUTORIAL!! SEE ABOVE
56	; VBE 2.0+	56	; VBE 2.0+
57	.PhysBasePtr dd ? ; ulong	57	.PhysBasePtr dd ? ; ulong
58	.OffScreenMemOffset dd ? ; ulong	58	.OffScreenMemOffset dd ? ; ulong
59	.OffScreenMemSize dw ? ; short	59	.OffScreenMemSize dw ? ; short
60	; VBE 3.0+	60	; VBE 3.0+
61	.LinbytesPerScanLine dw ? ; short	61	.LinbytesPerScanLine dw ? ; short
62	.BankNumberOfImagePages db ? ; char	62	.BankNumberOfImagePages db ? ; char
63	.LinNumberOfImagePages db ? ; char	63	.LinNumberOfImagePages db ? ; char
64	.LinRedMaskSize db ? ; char	64	.LinRedMaskSize db ? ; char
65	.LinRedFieldPosition db ? ; char	65	.LinRedFieldPosition db ? ; char
66	.LingreenMaskSize db ? ; char	66	.LingreenMaskSize db ? ; char
67	.LinGreenFieldPosition db ? ; char	67	.LinGreenFieldPosition db ? ; char
68	.LinBlueMaskSize db ? ; char	68	.LinBlueMaskSize db ? ; char
69	.LinBlueFieldPosition db ? ; char	69	.LinBlueFieldPosition db ? ; char
70	.LinRsvdMaskSize db ? ; char	70	.LinRsvdMaskSize db ? ; char
71	.LinRsvdFieldPosition db ? ; char	71	.LinRsvdFieldPosition db ? ; char
72	.MaxPixelClock dd ? ; ulong	72	.MaxPixelClock dd ? ; ulong
73	.res2 rb 190 ; char	73	.res2 rb 190 ; char
74	}	74	}
75		75
76	virtual at $A000	76	virtual at $A000
77	vi VBE_VGAInfo	77	vi VBE_VGAInfo
78	mi VBE_ModeInfo	78	mi VBE_ModeInfo
79	modes_table:	79	modes_table:
80	end virtual	80	end virtual
81	cursor_pos dw 0 ;временное хранение курсора.	81	cursor_pos dw 0 ;временное хранение курсора.
-		82	cursor_pos_old dw 0
82	home_cursor dw 0 ;current shows rows a table	83	home_cursor dw 0 ;current shows rows a table
83	end_cursor dw 0 ;end of position current shows rows a table	84	end_cursor dw 0 ;end of position current shows rows a table
84	scroll_start dw 0 ;start position of scroll bar	85	scroll_start dw 0 ;start position of scroll bar
85	scroll_end dw 0 ;end position of scroll bar	86	scroll_end dw 0 ;end position of scroll bar
86	long_v_table equ 9 ;long of visible video table	87	long_v_table equ 9 ;long of visible video table
87	size_of_step equ 10	88	size_of_step equ 10
88	scroll_area_size equ (long_v_table-2)	89	scroll_area_size equ (long_v_table-2)
89	int2str:	90	int2str:
90	dec bl	91	dec bl
91	jz @f	92	jz @f
92	xor edx, edx	93	xor edx, edx
93	div ecx	94	div ecx
94	push edx	95	push edx
95	call int2str	96	call int2str
96	pop eax	97	pop eax
97	@@:	98	@@:
98	or al, 0x30	99	or al, 0x30
99	mov [ds:di], al	100	mov [ds:di], al
100	inc di	101	inc di
101	ret	102	ret
102		103
103	int2strnz:	104	int2strnz:
104	cmp eax, ecx	105	cmp eax, ecx
105	jb @f	106	jb @f
106	xor edx, edx	107	xor edx, edx
107	div ecx	108	div ecx
108	push edx	109	push edx
109	call int2strnz	110	call int2strnz
110	pop eax	111	pop eax
111	@@:	112	@@:
112	or al, 0x30	113	or al, 0x30
113	mov [es:di], al	114	mov [es:di], al
114	inc di	115	inc di
115	ret	116	ret
116		117
117	;-------------------------------------------------------	118	;-------------------------------------------------------
118	;Write message about incorrect v_mode and write message about jmp on swith v_mode	119	;Write message about incorrect v_mode and write message about jmp on swith v_mode
119	v_mode_error:	120	v_mode_error:
120	_setcursor 19,2	121	_setcursor 19,2
121	mov si, fatalsel	122	mov si, fatalsel
122	call printplain	123	call printplain
123	_setcursor 20,2	124	_setcursor 20,2
124	mov si, pres_key	125	mov si, pres_key
125	call printplain	126	call printplain
126	xor eax, eax	127	xor eax, eax
127	int 16h	128	int 16h
128	jmp cfgmanager.d	129	jmp cfgmanager.d
129	;-------------------------------------------------------	130	;-------------------------------------------------------
130	;	131	;
131		132
132		133
133		134
134	;-------------------------------------------------------	135	;-------------------------------------------------------
135	print_vesa_info:	136	print_vesa_info:
136	_setcursor 5,2	137	_setcursor 5,2
137		138
138	mov [es:vi.VESASignature], 'VBE2'	139	mov [es:vi.VESASignature], 'VBE2'
139	mov ax, 0x4F00	140	mov ax, 0x4F00
140	mov di, vi ;0xa000	141	mov di, vi ;0xa000
141	int 0x10	142	int 0x10
142	or ah, ah	143	or ah, ah
143	jz @f	144	jz @f
144	mov [es:vi.VESASignature], 'VESA'	145	mov [es:vi.VESASignature], 'VESA'
145	mov ax, $4F00	146	mov ax, $4F00
146	mov di, vi	147	mov di, vi
147	int 0x10	148	int 0x10
148	or ah, ah	149	or ah, ah
149	jnz .exit	150	jnz .exit
150	@@:	151	@@:
151	cmp [es:vi.VESASignature], 'VESA'	152	cmp [es:vi.VESASignature], 'VESA'
152	jne .exit	153	jne .exit
153	cmp [es:vi.VESAVersion], 0x0100	154	cmp [es:vi.VESAVersion], 0x0100
154	jb .exit	155	jb .exit
155	jmp .vesaok2	156	jmp .vesaok2
156		157
157	.exit:	158	.exit:
158	mov si, novesa	159	mov si, novesa
159	call printplain	160	call printplain
160	ret	161	ret
161		162
162	.vesaok2:	163	.vesaok2:
163	mov ax, [es:vi.VESAVersion]	164	mov ax, [es:vi.VESAVersion]
164	add ax, '00'	165	add ax, '00'
165		166
166	mov [s_vesa.ver], ah	167	mov [s_vesa.ver], ah
167	mov [s_vesa.ver+2], al	168	mov [s_vesa.ver+2], al
168	mov si, s_vesa	169	mov si, s_vesa
169	call printplain	170	call printplain
170		171
171	_setcursor 4,2	172	_setcursor 4,2
172	mov si, word[es:vi.OemStringPtr]	173	mov si, word[es:vi.OemStringPtr]
173	mov di, si	174	mov di, si
174		175
175	push ds	176	push ds
176	mov ds, word[es:vi.OemStringPtr+2]	177	mov ds, word[es:vi.OemStringPtr+2]
177	call printplain	178	call printplain
178	pop ds	179	pop ds
179		180
180	ret	181	ret
181	;-----------------------------------------------------------------------------	182	;-----------------------------------------------------------------------------
182		183
183	calc_vmodes_table:	184	calc_vmodes_table:
184	pushad	185	pushad
185		186
186	; push 0	187	; push 0
187	; pop es	188	; pop es
188		189
189	lfs si, [es:vi.VideoModePtr]	190	lfs si, [es:vi.VideoModePtr]
190		191
191	mov bx, modes_table	192	mov bx, modes_table
192	;save no vesa mode of work 320x200, EGA/CGA 256 жўҐв®ў and 640x480, VGA 16 жўҐв®ў	193	;save no vesa mode of work 320x200, EGA/CGA 256 жўҐв®ў and 640x480, VGA 16 жўҐв®ў
193	mov word [es:bx], 640	194	mov word [es:bx], 640
194	mov word [es:bx+2], 480	195	mov word [es:bx+2], 480
195	mov word [es:bx+6], 0x13	196	mov word [es:bx+6], 0x13
196		197
197	mov word [es:bx+10], 640	198	mov word [es:bx+10], 640
198	mov word [es:bx+12], 480	199	mov word [es:bx+12], 480
199	mov word [es:bx+16], 0x12	200	mov word [es:bx+16], 0x12
200	add bx, 20	201	add bx, 20
201	.next_mode:	202	.next_mode:
202	mov cx, word [fs:si]; mode number	203	mov cx, word [fs:si]; mode number
203	cmp cx, -1	204	cmp cx, -1
204	je .modes_ok.2	205	je .modes_ok.2
205		206
206	mov ax, 0x4F01	207	mov ax, 0x4F01
207	mov di, mi	208	mov di, mi
208	int 0x10	209	int 0x10
209		210
210	or ah, ah	211	or ah, ah
211	jnz .modes_ok.2;vesa_info.exit	212	jnz .modes_ok.2;vesa_info.exit
212		213
213	test [es:mi.ModeAttributes], 00000001b ;videomode support ?	214	test [es:mi.ModeAttributes], 00000001b ;videomode support ?
214	jz @f	215	jz @f
215	test [es:mi.ModeAttributes], 00010000b ;picture ?	216	test [es:mi.ModeAttributes], 00010000b ;picture ?
216	jz @f	217	jz @f
217	test [es:mi.ModeAttributes], 10000000b ;LFB ?	218	test [es:mi.ModeAttributes], 10000000b ;LFB ?
218	jz @f	219	jz @f
219		220
220	cmp [es:mi.BitsPerPixel], 24 ;It show only videomodes to have support 24 and 32 bpp	221	cmp [es:mi.BitsPerPixel], 24 ;It show only videomodes to have support 24 and 32 bpp
221	jb @f	222	jb @f
222		223
223	; cmp [es:mi.BitsPerPixel],16	224	; cmp [es:mi.BitsPerPixel],16
224	; jne .l0	225	; jne .l0
225	; cmp [es:mi.GreenMaskSize],5	226	; cmp [es:mi.GreenMaskSize],5
226	; jne .l0	227	; jne .l0
227	; mov [es:mi.BitsPerPixel],15	228	; mov [es:mi.BitsPerPixel],15
228		229
229		230
230	.l0:	231	.l0:
231	cmp [es:mi.XRes], 640	232	cmp [es:mi.XRes], 640
232	jb @f	233	jb @f
233	cmp [es:mi.YRes], 480	234	cmp [es:mi.YRes], 480
234	jb @f	235	jb @f
235	; cmp [es:mi.BitsPerPixel],8	236	; cmp [es:mi.BitsPerPixel],8
236	; jb @f	237	; jb @f
237		238
238	mov ax, [es:mi.XRes]	239	mov ax, [es:mi.XRes]
239	mov [es:bx+0], ax ; +0[2] : resolution X	240	mov [es:bx+0], ax ; +0[2] : resolution X
240	mov ax, [es:mi.YRes]	241	mov ax, [es:mi.YRes]
241	mov [es:bx+2], ax ; +2[2] : resolution Y	242	mov [es:bx+2], ax ; +2[2] : resolution Y
242	mov ax, [es:mi.ModeAttributes]	243	mov ax, [es:mi.ModeAttributes]
243	mov [es:bx+4], ax ; +4[2] : attributes	244	mov [es:bx+4], ax ; +4[2] : attributes
244		245
245	cmp [s_vesa.ver], '2'	246	cmp [s_vesa.ver], '2'
246	; jb .lp1	247	; jb .lp1
247	jb @f ; We do not use Vesa 1.2 mode is now	248	jb @f ; We do not use Vesa 1.2 mode is now
248		249
249	or cx, 0x4000 ; use LFB	250	or cx, 0x4000 ; use LFB
250	.lp1:	251	.lp1:
251	mov [es:bx+6], cx ; +6 : mode number	252	mov [es:bx+6], cx ; +6 : mode number
252	movzx ax, byte [es:mi.BitsPerPixel]	253	movzx ax, byte [es:mi.BitsPerPixel]
253	mov word [es:bx+8], ax ; +8 : bits per pixel	254	mov word [es:bx+8], ax ; +8 : bits per pixel
254	add bx, size_of_step ; size of record	255	add bx, size_of_step ; size of record
255		256
256	@@:	257	@@:
257	add si, 2	258	add si, 2
258	jmp .next_mode	259	jmp .next_mode
259		260
260	.modes_ok.2:	261	.modes_ok.2:
261		262
262	mov word[es:bx], -1 ;end video table	263	mov word[es:bx], -1 ;end video table
263	mov word[end_cursor], bx ;save end cursor position	264	mov word[end_cursor], bx ;save end cursor position
264	;;;;;;;;;;;;;;;;;;	265	;;;;;;;;;;;;;;;;;;
265	;Sort array	266	;Sort array
266	; mov si,modes_table	267	; mov si,modes_table
267	;.new_mode:	268	;.new_mode:
268	; mov ax,word [es:si]	269	; mov ax,word [es:si]
269	; cmp ax,-1	270	; cmp ax,-1
270	; je .exxit	271	; je .exxit
271	; add ax,word [es:si+2]	272	; add ax,word [es:si+2]
272	; add ax,word [es:si+8]	273	; add ax,word [es:si+8]
273	; mov bp,si	274	; mov bp,si
274	;.again:	275	;.again:
275	; add bp,12	276	; add bp,12
276	; mov bx,word [es:bp]	277	; mov bx,word [es:bp]
277	; cmp bx,-1	278	; cmp bx,-1
278	; je .exit	279	; je .exit
279	; add bx,word [es:bp+2]	280	; add bx,word [es:bp+2]
280	; add bx,word [es:bp+8]	281	; add bx,word [es:bp+8]
281	;	282	;
282	; cmp ax,bx	283	; cmp ax,bx
283	; ja .loops	284	; ja .loops
284	; jmp .again	285	; jmp .again
285	;.loops:	286	;.loops:
286	; push dword [es:si]	287	; push dword [es:si]
287	; push dword [es:si+4]	288	; push dword [es:si+4]
288	; push dword [es:si+8]	289	; push dword [es:si+8]
289	; push dword [es:bp]	290	; push dword [es:bp]
290	; push dword [es:bp+4]	291	; push dword [es:bp+4]
291	; push dword [es:bp+8]	292	; push dword [es:bp+8]
292	;	293	;
293	; pop dword [es:si+8]	294	; pop dword [es:si+8]
294	; pop dword [es:si+4]	295	; pop dword [es:si+4]
295	; pop dword [es:si]	296	; pop dword [es:si]
296	; pop dword [es:bp+8]	297	; pop dword [es:bp+8]
297	; pop dword [es:bp+4]	298	; pop dword [es:bp+4]
298	; pop dword [es:bp]	299	; pop dword [es:bp]
299	; jmp .new_mode	300	; jmp .new_mode
300	;	301	;
301	;.exit: add si,12	302	;.exit: add si,12
302	; jmp .new_mode	303	; jmp .new_mode
303	;.exxit:	304	;.exxit:
304	popad	305	popad
305	ret	306	ret
306		307
307	;-----------------------------------------------------------------------------	308	;-----------------------------------------------------------------------------
308		309
309	draw_current_vmode:	310	draw_current_vmode:
310	push 0	311	push 0
311	pop es	312	pop es
312		313
313	mov si, word [cursor_pos]	314	mov si, word [cursor_pos]
314		315
315	cmp word [es:si+6], 0x12	316	cmp word [es:si+6], 0x12
316	je .no_vesa_0x12	317	je .no_vesa_0x12
317		318
318	cmp word [es:si+6], 0x13	319	cmp word [es:si+6], 0x13
319	je .no_vesa_0x13	320	je .no_vesa_0x13
320		321
321	if defined extended_primary_loader	322	if defined extended_primary_loader
322	mov di, config_file_variables	323	mov di, config_file_variables
323	else	324	else
324	mov di, loader_block_error	325	mov di, loader_block_error
325	end if	326	end if
326	movzx eax, word[es:si+0]	327	movzx eax, word[es:si+0]
327	mov ecx, 10	328	mov ecx, 10
328	call int2strnz	329	call int2strnz
329	mov byte[es:di], 'x'	330	mov byte[es:di], 'x'
330	inc di	331	inc di
331	movzx eax, word[es:si+2]	332	movzx eax, word[es:si+2]
332	call int2strnz	333	call int2strnz
333	mov byte[es:di], 'x'	334	mov byte[es:di], 'x'
334	inc di	335	inc di
335	movzx eax, word[es:si+8]	336	movzx eax, word[es:si+8]
336	call int2strnz	337	call int2strnz
337	mov dword[es:di], 0x00000d0a	338	mov dword[es:di], 0x00000d0a
338	if defined extended_primary_loader	339	if defined extended_primary_loader
339	mov si, config_file_variables	340	mov si, config_file_variables
340	else	341	else
341	mov si, loader_block_error	342	mov si, loader_block_error
342	end if	343	end if
343	push ds	344	push ds
344	push es	345	push es
345	pop ds	346	pop ds
346	call printplain	347	call printplain
347	pop ds	348	pop ds
348	ret	349	ret
349	.no_vesa_0x13:	350	.no_vesa_0x13:
350	mov si, mode0	351	mov si, mode0
351	jmp .print	352	jmp .print
352	.no_vesa_0x12:	353	.no_vesa_0x12:
353	mov si, mode9	354	mov si, mode9
354	.print:	355	.print:
355	call printplain	356	call printplain
356	ret	357	ret
357	;-----------------------------------------------------------------------------	358	;-----------------------------------------------------------------------------
358	check_first_parm:	359	check_first_parm:
359	if defined extended_primary_loader	360	if defined extended_primary_loader
360	mov cx, [number_vm]	361	mov cx, [number_vm]
361	jcxz .novbemode	362	jcxz .novbemode
362	mov si, modes_table	363	mov si, modes_table
363	.findvbemode:	364	.findvbemode:
364	cmp [es:si+6], cx	365	cmp [es:si+6], cx
365	jnz @f	366	jnz @f
366	cmp word [es:si+8], 32	367	cmp word [es:si+8], 32
367	je .ok_found_mode	368	je .ok_found_mode
368	cmp word [es:si+8], 24	369	cmp word [es:si+8], 24
369	je .ok_found_mode	370	je .ok_found_mode
370	@@:	371	@@:
371	add si, size_of_step	372	add si, size_of_step
372	cmp word [es:si], -1	373	cmp word [es:si], -1
373	jnz .findvbemode	374	jnz .findvbemode
374	.novbemode:	375	.novbemode:
375	mov ax, [x_save]	376	mov ax, [x_save]
376	test ax, ax	377	test ax, ax
377	jz .zerro	378	jz .zerro
378	mov bx, [y_save]	379	mov bx, [y_save]
379	mov si, modes_table	380	mov si, modes_table
380	call .loops	381	call .loops
381	test ax, ax	382	test ax, ax
382	jz .ok_found_mode	383	jz .ok_found_mode
383	else	384	else
384	mov si, word [preboot_graph]	385	mov si, word [preboot_graph]
385	test si, si	386	test si, si
386	jnz .no_zero ;if no zero	387	jnz .no_zero ;if no zero
387	end if	388	end if
388	.zerro:	389	.zerro:
389	; mov ax,modes_table	390	; mov ax,modes_table
390	; mov word [cursor_pos],ax	391	; mov word [cursor_pos],ax
391	; mov word [home_cursor],ax	392	; mov word [home_cursor],ax
392	; mov word [preboot_graph],ax	393	; mov word [preboot_graph],ax
393	;SET default video of mode first probe will fined a move of work 1024x768@32	394	;SET default video of mode first probe will fined a move of work 1024x768@32
394		395
395	mov ax, 1024	396	mov ax, 1024
396	mov bx, 768	397	mov bx, 768
397	mov si, modes_table	398	mov si, modes_table
398	call .loops	399	call .loops
399	test ax, ax	400	test ax, ax
400	jz .ok_found_mode	401	jz .ok_found_mode
401	mov ax, 800	402	mov ax, 800
402	mov bx, 600	403	mov bx, 600
403	mov si, modes_table	404	mov si, modes_table
404	call .loops	405	call .loops
405	test ax, ax	406	test ax, ax
406	jz .ok_found_mode	407	jz .ok_found_mode
407	mov ax, 640	408	mov ax, 640
408	mov bx, 480	409	mov bx, 480
409	mov si, modes_table	410	mov si, modes_table
410	call .loops	411	call .loops
411	test ax, ax	412	test ax, ax
412	jz .ok_found_mode	413	jz .ok_found_mode
413		414
414	mov si, modes_table	415	mov si, modes_table
415	if ~ defined extended_primary_loader	416	if ~ defined extended_primary_loader
416	jmp .ok_found_mode	417	jmp .ok_found_mode
417		418
418		419
419		420
420	.no_zero:	421	.no_zero:
421	mov bp, word [number_vm]	422	mov bp, word [number_vm]
422	cmp bp, word [es:si+6]	423	cmp bp, word [es:si+6]
423	jz .ok_found_mode	424	jz .ok_found_mode
424	mov ax, word [x_save]	425	mov ax, word [x_save]
425	mov bx, word [y_save]	426	mov bx, word [y_save]
426	mov si, modes_table	427	mov si, modes_table
427	call .loops	428	call .loops
428	test ax, ax	429	test ax, ax
429	jz .ok_found_mode	430	jz .ok_found_mode
430		431
431	mov si, modes_table	432	mov si, modes_table
432	; cmp ax,modes_table	433	; cmp ax,modes_table
433	; jb .zerro ;check on correct if bellow	434	; jb .zerro ;check on correct if bellow
434	; cmp ax,word [end_cursor]	435	; cmp ax,word [end_cursor]
435	; ja .zerro ;check on correct if anymore	436	; ja .zerro ;check on correct if anymore
436	end if	437	end if
437		438
438	.ok_found_mode:	439	.ok_found_mode:
439	mov word [home_cursor], si	440	mov word [home_cursor], si
440	; mov word [cursor_pos],si	441	; mov word [cursor_pos],si
441	mov word [preboot_graph], si	442	mov word [preboot_graph], si
442	mov ax, si	443	mov ax, si
443		444
444	mov ecx, long_v_table	445	mov ecx, long_v_table
445		446
446	.loop:	447	.loop:
447	add ax, size_of_step	448	add ax, size_of_step
448	cmp ax, word [end_cursor]	449	cmp ax, word [end_cursor]
449	jae .next_step	450	jae .next_step
450	loop .loop	451	loop .loop
451	.next_step:	452	.next_step:
452	sub ax, size_of_step*long_v_table	453	sub ax, size_of_step*long_v_table
453	cmp ax, modes_table	454	cmp ax, modes_table
454	jae @f	455	jae @f
455	mov ax, modes_table	456	mov ax, modes_table
456	@@:	457	@@:
457		458
458	mov word [home_cursor], ax	459	mov word [home_cursor], ax
459	mov si, [preboot_graph]	460	mov si, [preboot_graph]
460	mov word [cursor_pos], si	461	mov word [cursor_pos], si
461		462
462	push word [es:si]	463	push word [es:si]
463	pop word [x_save]	464	pop word [x_save]
464	push word [es:si+2]	465	push word [es:si+2]
465	pop word [y_save]	466	pop word [y_save]
466	push word [es:si+6]	467	push word [es:si+6]
467	pop word [number_vm]	468	pop word [number_vm]
468		469
469	ret	470	ret
470	;;;;;;;;;;;;;;;;;;;;;;;;;;;	471	;;;;;;;;;;;;;;;;;;;;;;;;;;;
471	.loops:	472	.loops:
472	cmp ax, word [es:si]	473	cmp ax, word [es:si]
473	jne .next	474	jne .next
474	cmp bx, word [es:si+2]	475	cmp bx, word [es:si+2]
475	jne .next	476	jne .next
476	cmp word [es:si+8], 32	477	cmp word [es:si+8], 32
477	je .ok	478	je .ok
478	cmp word [es:si+8], 24	479	cmp word [es:si+8], 24
479	je .ok	480	je .ok
480	.next:	481	.next:
481	add si, size_of_step	482	add si, size_of_step
482	cmp word [es:si], -1	483	cmp word [es:si], -1
483	je .exit	484	je .exit
484	jmp .loops	485	jmp .loops
485	.ok:	486	.ok:
486	xor ax, ax	487	xor ax, ax
487	ret	488	ret
488	.exit:	489	.exit:
489	or ax, -1	490	or ax, -1
490	ret	491	ret
491		492
492		493
493	;-----------------------------------------------------------------------------	494	;-----------------------------------------------------------------------------
494		495
495	;default_vmode:	496	;default_vmode:
496		497
497	;-----------------------------------------------------------------------------	498	;-----------------------------------------------------------------------------
498	draw_vmodes_table:	499	draw_vmodes_table:
499	_setcursor 9, 2	500	_setcursor 9, 2

Subversion Repositories Kolibri OS

(root)/kernel/trunk/boot/bootvesa.inc – Rev 3795 → 3999