mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-20 05:42:34 +03:00
1056 lines
24 KiB
PHP
1056 lines
24 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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;; Copyright (C) MenuetOS 2000-2004 Ville Mikael Turjanmaa ;;
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;; Distributed under terms of the GNU General Public License ;;
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;; ;;
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;; BOOTCODE.INC ;;
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;; ;;
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;; KolibriOS 16-bit loader, ;;
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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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; 16 BIT FUNCTIONS
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;
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;==========================================================================
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putchar:
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; in: al=character
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mov ah, 0Eh
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mov bh, 0
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int 10h
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ret
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print:
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; in: si->string
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mov al, 186
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call putchar
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mov al, ' '
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call putchar
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printplain:
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; in: si->string
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pusha
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lodsb
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@@:
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call putchar
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lodsb
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cmp al, 0
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jnz @b
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popa
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ret
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getkey:
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; get number in range [bl,bh] (bl,bh in ['0'..'9'])
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; in: bx=range
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; out: ax=digit (1..9, 10 for 0)
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mov ah, 0
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int 16h
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cmp al, bl
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jb getkey
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cmp al, bh
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ja getkey
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push ax
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call putchar
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pop ax
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and ax, 0Fh
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jnz @f
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mov al, 10
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@@:
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ret
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setcursor:
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; in: dl=column, dh=row
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mov ah, 2
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mov bh, 0
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int 10h
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ret
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macro _setcursor row,column
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{
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mov dx, row*256 + column
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call setcursor
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}
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boot_read_floppy:
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push si
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xor si, si
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mov ah, 2 ; read
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@@:
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push ax
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int 0x13
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pop ax
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jnc @f
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inc si
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cmp si, 10
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jb @b
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mov si, badsect
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sayerr_plain:
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call printplain
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jmp $
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@@:
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pop si
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ret
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;=========================================================================
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;
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; 16 BIT CODE
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;
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;=========================================================================
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start_of_code:
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cld
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; \begin{diamond}[02.12.2005]
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cmp ax, 'KL'
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jnz @f
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mov word [cs:cfgmanager.loader_block], si
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mov word [cs:cfgmanager.loader_block+2], ds
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@@:
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; \end{diamond}[02.12.2005]
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; set up stack
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mov ax, 3000h
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mov ss, ax
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mov sp, 0EC00h
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; set up segment registers
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push cs
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pop ds
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push cs
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pop es
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; set videomode
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mov ax, 3
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int 0x10
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if lang eq ru
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; Load & set russian VGA font (RU.INC)
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mov bp, RU_FNT1 ; RU_FNT1 - First part
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mov bx,1000h ; 768 bytes
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mov cx,30h ; 48 symbols
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mov dx,80h ; 128 - position of first symbol
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mov ax,1100h
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int 10h
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mov bp,RU_FNT2 ; RU_FNT2 -Second part
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mov bx,1000h ; 512 bytes
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mov cx,20h ; 32 symbols
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mov dx,0E0h ; 224 - position of first symbol
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mov ax,1100h
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int 10h
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; End set VGA russian font
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else if lang eq et
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mov bp,ET_FNT ; ET_FNT1
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mov bx,1000h ;
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mov cx,255 ; 256 symbols
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mov dx,0h ; 0 - position of first symbol
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mov ax,1100h
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int 10h
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end if
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; draw frames
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push 0xb800
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pop es
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xor di, di
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mov ah, 1*16+15
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; draw top
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mov si, d80x25_top
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mov cx, d80x25_top_num * 80
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@@:
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lodsb
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stosw
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loop @b
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; draw spaces
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mov si, space_msg
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mov cx, 25 - d80x25_top_num - d80x25_bottom_num
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dfl1:
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push cx
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push si
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mov cx, 80
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@@:
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lodsb
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stosw
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loop @b
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pop si
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pop cx
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loop dfl1
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; draw bottom
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mov si, d80x25_bottom
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mov cx, d80x25_bottom_num * 80
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@@:
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lodsb
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stosw
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loop @b
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mov byte [space_msg+80], 0 ; now space_msg is null terminated
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_setcursor d80x25_top_num,0
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; TEST FOR 386+
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mov bx, 0x4000
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pushf
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pop ax
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mov dx,ax
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xor ax,bx
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push ax
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popf
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pushf
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pop ax
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and ax,bx
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and dx,bx
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cmp ax,dx
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jnz cpugood
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mov si,not386
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sayerr:
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call print
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jmp $
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cpugood:
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push 0
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popf
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sti
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; set up esp
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movzx esp, sp
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push 0
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pop es
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and word [es:0x9031], 0
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; \begin{Mario79}
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; find HDD IDE DMA PCI device
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; check for PCI BIOS
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mov ax, 0xB101
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int 0x1A
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jc .nopci
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cmp edx, 'PCI '
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jnz .nopci
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; find PCI class code
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; class 1 = mass storage
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; subclass 1 = IDE controller
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; a) class 1, subclass 1, programming interface 0x80
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mov ax, 0xB103
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mov ecx, 1*10000h + 1*100h + 0x80
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mov si, 0 ; device index = 0
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int 0x1A
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jnc .found
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; b) class 1, subclass 1, programming interface 0x8A
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mov ax, 0xB103
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mov ecx, 1*10000h + 1*100h + 0x8A
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mov si, 0 ; device index = 0
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int 0x1A
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jnc .found
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; c) class 1, subclass 1, programming interface 0x85
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mov ax, 0xB103
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mov ecx, 1*10000h + 1*100h + 0x85
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mov si, 0
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int 0x1A
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jc .nopci
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.found:
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; get memory base
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mov ax, 0xB10A
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mov di, 0x20 ; memory base is config register at 0x20
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int 0x1A
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jc .nopci
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and cx, 0xFFF0 ; clear address decode type
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mov [es:0x9031], cx
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.nopci:
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; \end{Mario79}
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mov al,0xf6 ; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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out 0x60,al
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xor cx,cx
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wait_loop: ; variant 2
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; reading state of port of 8042 controller
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in al,64h
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and al,00000010b ; ready flag
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; wait until 8042 controller is ready
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loopnz wait_loop
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; --------------- APM ---------------------
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push 0
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pop es
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mov word [es : 0x9044], 0 ; ver = 0.0 (APM not found)
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mov ax, 0x5300
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xor bx, bx
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int 0x15
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jc apm_end ; APM not found
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test cx, 2
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jz apm_end ; APM 32-bit protected-mode interface not supported
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mov [es : 0x9044], ax ; Save APM Version
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mov [es : 0x9046], cx ; Save APM flags
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; Write APM ver ----
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and ax, 0xf0f
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add ax, '00'
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mov si, msg_apm
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mov [si + 5], ah
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mov [si + 7], al
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_setcursor 0, 3
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call printplain
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; ------------------
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mov ax, 0x5304 ; Disconnect interface
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xor bx, bx
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int 0x15
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mov ax, 0x5303 ; Connect 32 bit mode interface
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xor bx, bx
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int 0x15
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push 0
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pop es
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mov [es:0x9040], ebx
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mov [es:0x9050], ax
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mov [es:0x9052], cx
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mov [es:0x9054], dx
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apm_end:
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_setcursor d80x25_top_num, 0
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; DISPLAY VESA INFORMATION
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push 0
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pop es
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mov ax,0x4f00
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mov di,0xa000
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int 0x10
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cmp ax,0x004f
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mov si, novesa
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jnz @f
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mov bx, word [es:di+0x12]
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shl ebx,16
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mov [es:0x9050], ebx
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mov ax,[es:di+4]
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add ax,'0'*256+'0'
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mov si,vervesa
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mov [si+vervesa_off], ah
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mov [si+vervesa_off+2], al
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@@: call print
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; \begin{diamond}[30.11.2005]
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cfgmanager:
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; settings:
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; a) preboot_graph = graphical mode
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; preboot_gprobe = probe this mode?
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; b) preboot_dma_write = use DMA write?
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; c) preboot_vrrm = use VRR?
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; d) preboot_device = from what boot?
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mov di, preboot_graph
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; check bootloader block
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cmp [.loader_block], -1
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jz .noloaderblock
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les bx, [.loader_block]
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cmp byte [es:bx], 1
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mov si, loader_block_error
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jnz sayerr
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test byte [es:bx+1], 1
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jz @f
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; image in memory present
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cmp [di+preboot_device-preboot_graph], 0
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jnz @f
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mov [di+preboot_device-preboot_graph], 3
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@@:
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.noloaderblock:
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; determine default settings
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mov [.bSettingsChanged], 0
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cmp byte [di], 0
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jnz .preboot_gr_end
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mov [di+preboot_gprobe-preboot_graph], 0
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mov al, [vervesa+vervesa_off]
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cmp al, 'x'
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jz .novesa
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cmp al, '1'
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jz .vesa12
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mov [di+preboot_gprobe-preboot_graph], 2
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mov al, 3
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jmp @f
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.vesa12:
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mov al, 7
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jmp @f
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.novesa:
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mov al, 10
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@@:
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mov [di], al
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.preboot_gr_end:
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cmp [di+preboot_dma_write-preboot_graph], 1
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adc [di+preboot_dma_write-preboot_graph], 0
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cmp [di+preboot_vrrm-preboot_graph], 1
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adc [di+preboot_vrrm-preboot_graph], 0
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cmp [di+preboot_device-preboot_graph], 1
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adc [di+preboot_device-preboot_graph], 0
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; notify user
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mov si, linef
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call print
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mov si, start_msg
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call print
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mov si, time_msg
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call print
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; get start time
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call .gettime
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mov [.starttime], eax
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mov word [.timer], .newtimer
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mov word [.timer+2], cs
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.printcfg:
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_setcursor 9,0
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mov si, current_cfg_msg
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call print
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mov si, curvideo_msg
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call print
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mov al, [preboot_graph]
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cmp al, 8
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ja .pnovesa
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mov dl, al
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and eax, 3
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mov si, [modes_msg+eax*2]
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call printplain
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mov si, modevesa20
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cmp dl, 4
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jbe @f
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mov si, modevesa12
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@@:
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call printplain
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cmp dl, 4
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ja .x
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mov si, probeno_msg
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cmp [preboot_gprobe], 2
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jnz @f
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mov si, probeok_msg
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@@:
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call printplain
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.x:
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jmp .c
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.pnovesa:
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cmp al, 9
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mov si, mode9
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jz @b
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mov si, mode10
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jmp @b
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.c:
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mov si, linef
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call printplain
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mov si, dma_msg
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cmp [preboot_dma_write], 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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mov si, preboot_device_msg
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call print
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mov al, [preboot_device]
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and eax, 3
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mov si, [preboot_device_msgs+eax*2]
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call printplain
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.wait:
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_setcursor 25,0 ; out of screen
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; set timer interrupt handler
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cli
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push 0
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pop es
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mov eax, [es:8*4]
|
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mov [.oldtimer], eax
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mov eax, [.timer]
|
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mov [es:8*4], eax
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sti
|
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; wait for keypressed
|
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mov ah, 0
|
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int 16h
|
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push ax
|
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; restore timer interrupt
|
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push 0
|
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pop es
|
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mov eax, [.oldtimer]
|
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mov [es:8*4], eax
|
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mov [.timer], eax
|
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_setcursor 7,0
|
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mov si, space_msg
|
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call printplain
|
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pop ax
|
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; switch on key
|
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cmp al, 13
|
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jz .continue
|
||
or al, 20h
|
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cmp al, 'a'
|
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jz .change_a
|
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cmp al, 'b'
|
||
jz .change_b
|
||
cmp al, 'c'
|
||
jz .change_c
|
||
cmp al, 'd'
|
||
jnz .wait
|
||
_setcursor 15,0
|
||
mov si,bdev
|
||
call print
|
||
mov bx,'13'
|
||
call getkey
|
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mov [preboot_device], al
|
||
_setcursor 13,0
|
||
.d:
|
||
mov [.bSettingsChanged], 1
|
||
mov si, space_msg
|
||
call printplain
|
||
_setcursor 15,0
|
||
mov cx, 6
|
||
@@:
|
||
call printplain
|
||
loop @b
|
||
jmp .printcfg
|
||
.change_a:
|
||
_setcursor 15,0
|
||
mov si, gr_mode
|
||
call printplain
|
||
mov bx, '09'
|
||
call getkey
|
||
mov [preboot_graph], al
|
||
cmp al, 4
|
||
ja @f
|
||
mov si, probetext
|
||
call printplain
|
||
mov bx, '12'
|
||
call getkey
|
||
mov [preboot_gprobe], al
|
||
@@:
|
||
_setcursor 10,0
|
||
jmp .d
|
||
.change_b:
|
||
_setcursor 15,0
|
||
mov si, ask_dma
|
||
call print
|
||
mov bx, '12'
|
||
call getkey
|
||
mov [preboot_dma_write], al
|
||
_setcursor 11,0
|
||
jmp .d
|
||
.change_c:
|
||
_setcursor 15,0
|
||
mov si, vrrmprint
|
||
call print
|
||
mov bx, '12'
|
||
call getkey
|
||
mov [preboot_vrrm], al
|
||
_setcursor 12,0
|
||
jmp .d
|
||
.say_on_off:
|
||
pushf
|
||
call print
|
||
mov si, on_msg
|
||
popf
|
||
jz @f
|
||
mov si, off_msg
|
||
@@: call printplain
|
||
ret
|
||
; novesa and vervesa strings are not used at the moment of executing this code
|
||
virtual at novesa
|
||
.oldtimer dd ?
|
||
.starttime dd ?
|
||
.bSettingsChanged db ?
|
||
.timer dd ?
|
||
end virtual
|
||
.loader_block dd -1
|
||
.gettime:
|
||
mov ah, 0
|
||
int 1Ah
|
||
xchg ax, cx
|
||
shl eax, 10h
|
||
xchg ax, dx
|
||
ret
|
||
.newtimer:
|
||
push ds
|
||
push cs
|
||
pop ds
|
||
pushf
|
||
call [.oldtimer]
|
||
pushad
|
||
call .gettime
|
||
sub eax, [.starttime]
|
||
sub ax, 18*5
|
||
jae .timergo
|
||
neg ax
|
||
add ax, 18-1
|
||
mov bx, 18
|
||
xor dx, dx
|
||
div bx
|
||
if lang eq ru
|
||
; <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 5 ᥪ㭤, 4/3/2 ᥪ㭤<EFBFBD>, 1 ᥪ㭤<EFBFBD>
|
||
cmp al, 5
|
||
mov cl, ' '
|
||
jae @f
|
||
cmp al, 1
|
||
mov cl, '<27>'
|
||
jz @f
|
||
mov cl, '<27>'
|
||
@@: mov [time_str+9], cl
|
||
else if lang eq et
|
||
cmp al, 1
|
||
ja @f
|
||
mov [time_str+9], ' '
|
||
mov [time_str+10],' '
|
||
@@:
|
||
else
|
||
; wait 5/4/3/2 seconds, 1 second
|
||
cmp al, 1
|
||
mov cl, 's'
|
||
ja @f
|
||
mov cl, ' '
|
||
@@: mov [time_str+9], cl
|
||
end if
|
||
add al, '0'
|
||
mov [time_str+1], al
|
||
mov si, time_msg
|
||
_setcursor 7,0
|
||
call print
|
||
_setcursor 25,0
|
||
popad
|
||
pop ds
|
||
iret
|
||
.timergo:
|
||
push 0
|
||
pop es
|
||
mov eax, [.oldtimer]
|
||
mov [es:8*4], eax
|
||
mov sp, 0EC00h
|
||
.continue:
|
||
sti
|
||
_setcursor 6,0
|
||
mov si, space_msg
|
||
call printplain
|
||
call printplain
|
||
_setcursor 6,0
|
||
mov si, loading_msg
|
||
call print
|
||
_setcursor 15,0
|
||
cmp [.bSettingsChanged], 0
|
||
jz .load
|
||
cmp [.loader_block], -1
|
||
jz .load
|
||
les bx, [.loader_block]
|
||
mov eax, [es:bx+3]
|
||
push ds
|
||
pop es
|
||
test eax, eax
|
||
jz .load
|
||
push eax
|
||
mov si, save_quest
|
||
call print
|
||
.waityn:
|
||
mov ah, 0
|
||
int 16h
|
||
or al, 20h
|
||
cmp al, 'n'
|
||
jz .loadc
|
||
cmp al, 'y'
|
||
jnz .waityn
|
||
call putchar
|
||
mov byte [space_msg+80], 186
|
||
pop eax
|
||
push cs
|
||
push .cont
|
||
push eax
|
||
retf
|
||
.loadc:
|
||
pop eax
|
||
.cont:
|
||
push cs
|
||
pop ds
|
||
mov si, space_msg
|
||
mov byte [si+80], 0
|
||
_setcursor 15,0
|
||
call printplain
|
||
_setcursor 15,0
|
||
.load:
|
||
; \end{diamond}[02.12.2005]
|
||
|
||
; ASK GRAPHICS MODE
|
||
|
||
movzx ax, [preboot_graph]
|
||
push 0
|
||
pop es
|
||
; address is gr_table+6*(ax-1)
|
||
add ax, ax
|
||
lea si, [gr_table + eax + eax*2 - 6]
|
||
mov bx,[si+0]
|
||
mov cx,[si+2]
|
||
mov dx,[si+4]
|
||
cmp al, 9*2
|
||
mov al, 32 ; BPP
|
||
jb @f
|
||
mov [es:0x9000], al
|
||
mov dword [es:0x9018], 0xFFFFFFFF; 0x800000
|
||
@@:
|
||
mov [es:0x9008],bx
|
||
mov [es:0x900A],cx
|
||
mov [es:0x900C],dx
|
||
test bh, bh
|
||
jz nov
|
||
|
||
; USE DEFAULTS OR PROBE
|
||
|
||
; bx - mode : cx - x size : dx - y size
|
||
cmp [preboot_gprobe], 1
|
||
jz noprobe
|
||
|
||
mov bx,0x100
|
||
newprobe:
|
||
inc bx
|
||
cmp bx,0x17f
|
||
mov si,prnotfnd
|
||
jz sayerr
|
||
|
||
probemore:
|
||
push cx
|
||
mov ax,0x4f01
|
||
mov cx,bx
|
||
and cx,0xfff
|
||
mov di,0xa000
|
||
int 0x10
|
||
pop cx
|
||
|
||
test byte [es:di], 80h ; lfb?
|
||
jz newprobe
|
||
cmp [es:di+0x12], cx ; x size?
|
||
jnz newprobe
|
||
cmp [es:di+0x14], dx ; y size?
|
||
jnz newprobe
|
||
cmp byte [es:di+0x19], 32 ;24
|
||
jb newprobe
|
||
|
||
; add bx,0100000000000000b
|
||
or bh, 40h
|
||
mov [es:0x9008],bx
|
||
|
||
noprobe:
|
||
|
||
|
||
; FIND VESA 2.0 LFB & BPP
|
||
|
||
mov ax,0x4f01
|
||
mov cx,bx
|
||
and cx,0xfff
|
||
mov di,0xa000
|
||
int 0x10
|
||
; LFB
|
||
mov eax,[es:di+0x28]
|
||
mov [es:0x9018],eax
|
||
; ---- vbe voodoo
|
||
BytesPerLine equ 0x10
|
||
mov ax, [es:di+BytesPerLine]
|
||
mov [es:0x9001],ax
|
||
; BPP
|
||
mov al,byte [es:di+0x19]
|
||
mov [es:0x9000],al
|
||
nov:
|
||
cmp al,24
|
||
mov si,bt24
|
||
jz bppl
|
||
cmp al,32
|
||
mov si,bt32
|
||
jz bppl
|
||
mov si,btns
|
||
jmp sayerr
|
||
bppl:
|
||
call print
|
||
|
||
|
||
; FIND VESA 1.2 PM BANK SWITCH ADDRESS
|
||
|
||
push es
|
||
mov ax,0x4f0A
|
||
xor bx, bx
|
||
int 0x10
|
||
xor eax,eax
|
||
mov ax,es
|
||
shl eax,4
|
||
movzx ebx,di
|
||
add eax,ebx
|
||
mov bx,[es:di]
|
||
add eax,ebx
|
||
pop es
|
||
mov [es:0x9014],eax
|
||
|
||
|
||
; GRAPHICS ACCELERATION
|
||
; force yes
|
||
mov [es:0x901C], byte 1
|
||
|
||
; DMA WRITE
|
||
|
||
mov al, [preboot_dma_write]
|
||
mov [es:0x901F],al
|
||
|
||
; VRR_M USE
|
||
|
||
mov al,[preboot_vrrm]
|
||
mov [es:0x9030],al
|
||
mov [es:0x901E],byte 1
|
||
|
||
; BOOT DEVICE
|
||
|
||
mov al, [preboot_device]
|
||
dec al
|
||
mov [boot_dev],al
|
||
|
||
; READ DISKETTE TO MEMORY
|
||
|
||
; cmp [boot_dev],0
|
||
jne no_sys_on_floppy
|
||
mov si,diskload
|
||
call print
|
||
xor ax, ax ; reset drive
|
||
xor dx, dx
|
||
int 0x13
|
||
; now load floppy image to memory
|
||
; at first load boot sector and first FAT table
|
||
mov cx, 0x0001 ; startcyl,startsector
|
||
xor dx, dx ; starthead,drive
|
||
mov al, 1+9 ; no of sectors to read
|
||
mov bx, 0xB000 ; es:bx -> data area
|
||
call boot_read_floppy
|
||
; and copy them to extended memory
|
||
mov si, movedesc
|
||
mov [si+8*2+3], bh
|
||
push es
|
||
push ds
|
||
pop es
|
||
mov cx, 256*10
|
||
mov ah, 0x87
|
||
int 0x15
|
||
test ah, ah
|
||
jz @f
|
||
sayerr_floppy:
|
||
mov dx, 0x3f2
|
||
mov al, 0
|
||
out dx, al
|
||
mov si, memmovefailed
|
||
jmp sayerr_plain
|
||
@@:
|
||
add dword [si+8*3+2], 512*10
|
||
; copy FAT to second copy
|
||
mov byte [si+8*2+3], 0xB2
|
||
mov cx, 256*9
|
||
mov ah, 0x87
|
||
int 0x15
|
||
pop es
|
||
test ah, ah
|
||
jnz sayerr_floppy
|
||
add dword [si+8*3+2], 512*9
|
||
; calculate total number of sectors to read
|
||
mov ax, 1+9+14 ; boot+FAT+root
|
||
mov di, 0xB203
|
||
.calc_loop:
|
||
test word [es:di], 0xFFF
|
||
jz @f
|
||
inc ax
|
||
@@:
|
||
test word [es:di+1], 0xFFF0
|
||
jz @f
|
||
inc ax
|
||
@@:
|
||
add di, 3
|
||
cmp di, 0xB200+1440*3
|
||
jb .calc_loop
|
||
push ax
|
||
mov bp, 1+9 ; already read sectors
|
||
; now read rest
|
||
mov byte [si+8*2+3], 0xA0
|
||
mov di, 2-14 ; absolute sector-31
|
||
mov cx, 0x0002 ; cylinder=0, sector=2
|
||
mov dx, 0x0100 ; head=1, disk=0
|
||
.read_loop:
|
||
; determine whether sector must be read
|
||
cmp di, 2
|
||
jl .read
|
||
mov bx, di
|
||
shr bx, 1
|
||
jnc .even
|
||
test word [es:bx+di+0xB200], 0xFFF0
|
||
jmp @f
|
||
.even:
|
||
test word [es:bx+di+0xB200], 0xFFF
|
||
@@:
|
||
jz .skip
|
||
.read:
|
||
mov bx, 0xA000
|
||
mov al, 1 ; 1 sector
|
||
call boot_read_floppy
|
||
inc bp
|
||
push es
|
||
push ds
|
||
pop es
|
||
pusha
|
||
mov cx, 256
|
||
mov ah, 0x87
|
||
int 0x15
|
||
test ah, ah
|
||
popa
|
||
pop es
|
||
jnz sayerr_floppy
|
||
.skip:
|
||
add dword [si+8*3+2], 512
|
||
inc cx
|
||
cmp cl, 19
|
||
jnz @f
|
||
mov cl, 1
|
||
inc dh
|
||
cmp dh, 2
|
||
jnz @f
|
||
mov dh, 0
|
||
inc ch
|
||
@@:
|
||
pop ax
|
||
push ax
|
||
pusha
|
||
; draw percentage
|
||
; total sectors: ax
|
||
; read sectors: bp
|
||
xchg ax, bp
|
||
mov cx, 100
|
||
mul cx
|
||
div bp
|
||
aam
|
||
xchg al, ah
|
||
add ax, '00'
|
||
mov si, pros
|
||
cmp [si], ax
|
||
jz @f
|
||
mov [si], ax
|
||
call printplain
|
||
@@:
|
||
popa
|
||
inc di
|
||
cmp di, 2880-31
|
||
jnz .read_loop
|
||
|
||
; mov cx, 0x0001 ; startcyl,startsector
|
||
; xor dx, dx ; starthead,drive
|
||
; push word 80*2 ; read no of sect
|
||
; reads:
|
||
; pusha
|
||
; xor si,si
|
||
; newread:
|
||
; mov bx,0xa000 ; es:bx -> data area
|
||
; mov ax,0x0200+18 ; read, no of sectors to read
|
||
; int 0x13
|
||
; test ah, ah
|
||
; jz goodread
|
||
; inc si
|
||
; cmp si,10
|
||
; jnz newread
|
||
; mov si,badsect-0x10000
|
||
;sayerr_plain:
|
||
; call printplain
|
||
; jmp $
|
||
; goodread:
|
||
; ; move -> 1mb
|
||
; mov si,movedesc-0x10000
|
||
; push es
|
||
; push ds
|
||
; pop es
|
||
; mov cx,256*18
|
||
; mov ah,0x87
|
||
; int 0x15
|
||
; pop es
|
||
;
|
||
; test ah,ah ; was the move successfull ?
|
||
; je goodmove
|
||
; mov dx,0x3f2 ; floppy motor off
|
||
; mov al,0
|
||
; out dx,al
|
||
; mov si,memmovefailed-0x10000
|
||
; jmp sayerr_plain
|
||
; goodmove:
|
||
;
|
||
; add dword [movedesc-0x10000+0x18+2], 512*18
|
||
; popa
|
||
; inc dh
|
||
; cmp dh,2
|
||
; jnz bb2
|
||
; mov dh,0
|
||
; inc ch
|
||
; pusha ; print prosentage
|
||
; mov si,pros-0x10000
|
||
; shr ch, 2
|
||
; mov al, '5'
|
||
; test ch, 1
|
||
; jnz @f
|
||
; mov al, '0'
|
||
;@@:
|
||
; mov [si+1], al
|
||
; shr ch, 1
|
||
; add ch, '0'
|
||
; mov [si], ch
|
||
; call printplain
|
||
; popa
|
||
; bb2:
|
||
; pop ax
|
||
; dec ax
|
||
; push ax
|
||
; jnz reads
|
||
; readdone:
|
||
; pop ax
|
||
|
||
mov si,backspace2
|
||
call printplain
|
||
mov si,okt
|
||
call printplain
|
||
no_sys_on_floppy:
|
||
xor ax, ax ; reset drive
|
||
xor dx, dx
|
||
int 0x13
|
||
mov dx,0x3f2 ; floppy motor off
|
||
mov al,0
|
||
out dx,al
|
||
|
||
|
||
; SET GRAPHICS
|
||
|
||
xor ax, ax
|
||
mov es, ax
|
||
|
||
mov ax,[es:0x9008] ; vga & 320x200
|
||
mov bx, ax
|
||
cmp ax,0x13
|
||
je setgr
|
||
cmp ax,0x12
|
||
je setgr
|
||
mov ax,0x4f02 ; Vesa
|
||
setgr:
|
||
int 0x10
|
||
test ah,ah
|
||
mov si, fatalsel
|
||
jnz sayerr
|
||
; set mode 0x12 graphics registers:
|
||
cmp bx,0x12
|
||
jne gmok2
|
||
|
||
mov al,0x05
|
||
mov dx,0x03ce
|
||
push dx
|
||
out dx,al ; select GDC mode register
|
||
mov al,0x02
|
||
inc dx
|
||
out dx,al ; set write mode 2
|
||
|
||
mov al,0x02
|
||
mov dx,0x03c4
|
||
out dx,al ; select VGA sequencer map mask register
|
||
mov al,0x0f
|
||
inc dx
|
||
out dx,al ; set mask for all planes 0-3
|
||
|
||
mov al,0x08
|
||
pop dx
|
||
out dx,al ; select GDC bit mask register
|
||
; for writes to 0x03cf
|
||
gmok2:
|
||
push ds
|
||
pop es
|