397 lines
5.9 KiB
NASM
397 lines
5.9 KiB
NASM
.model tiny
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.386c
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.code
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org 0100h
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start:
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mov ax,0305h
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mov bx,0008h
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int 16h
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mov ah,28h
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int 47H
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mov ax,0002
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int 47H
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mov ah,2
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int 47h
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mov ah,43
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int 47h
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xor bp,bp
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push cs
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push cs
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pop es
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pop ds
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Adres:
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mov di,offset infos
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mov ah,34
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int 47h
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dec infos
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push cs
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pop es
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mov cx,sect
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mov di,offset buffer
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mov ah,0h
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int 48h
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jnc noerror
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errtr:
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mov ah,25
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mov bl,infos
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xor bh,bh
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int 47h
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mov ah,21
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mov cl,116
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int 47h
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mov ah,13
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mov si,offset errordisk
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int 47h
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mov ax,0
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int 16h
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noerror:
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adres2:
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mov di,offset infos
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mov ah,34
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int 47h
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dec byte ptr [di]
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mov al,[di+1]
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sub al,16
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mov bl,al
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shr al,2
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mov [di+1],al
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and bl,11b
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mov [di+2],bl
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mov al,[di+7]
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cmp al,oldmode
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je noinit
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mov ah,2
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int 47h
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mov oldmode,al
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noinit:
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mov bx,0
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mov ah,25
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int 47h
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mov bh,infos
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mov di,bp
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mov ah,21
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mov cl,7
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int 47h
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lines:
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mov dx,sect
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mov cx,16
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mov ah,10
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int 47h
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mov si,offset dep
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mov ah,13
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int 47h
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mov dx,di
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mov ah,10
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int 47h
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mov ah,13
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mov si,offset spaces
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int 47h
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mov ah,5
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int 47h
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mov al,infos+1
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mov cl,7
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mov ah,21
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int 47h
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mov si,di
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doaline:
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mov dl,[di+offset buffer]
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mov ah,10
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mov cl,8
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int 47h
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mov ah,5
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int 47h
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inc di
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dec al
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jnz doaline
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mov di,si
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mov si,offset spaces
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mov ah,13
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int 47h
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mov al,infos+1
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mov ah,21
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mov cl,7
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int 47h
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doaline2:
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mov dl,[di+offset buffer]
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mov ah,7
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int 47h
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inc di
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dec al
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jnz doaline2
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dec bh
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je outes
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cmp byte ptr infos+2,0
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je lines
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mov ah,6
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int 47h
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jmp lines
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outes:
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mov ah,21
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mov cl,112
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int 47h
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mov bh,0
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mov bl,infos
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mov si,offset menu
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mov ah,14h
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int 47h
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waitkey:
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mov ax,0
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int 16h
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cmp ax,3B00h
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jne suit
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cmp bp,8*16
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jae waitkey
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add bp,16
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jmp adres2
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suit:
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cmp ax,3C00h
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jne suit2
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cmp bp,0
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je waitkey
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sub bp,16
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jmp adres2
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suit2:
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cmp ax,3D00h
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jne suit3
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cmp sect,2880
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ja waitkey
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inc sect
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jmp adres
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suit3:
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cmp ax,3E00h
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jne suit4
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cmp sect,0
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je waitkey
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dec sect
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jmp adres
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suit4:
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cmp ax,3F00h
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jne suit5
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jmp adres2
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suit5:
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cmp ax,4000h
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jne suit6
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mov cx,sect
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mov di,offset buffer
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mov ah,1
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int 48h
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jnc waitkey
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jmp errtr
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suit6:
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cmp ax,4100h
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jne suit7
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mov dword ptr [pope],'TIDE'
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mov bl,infos
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xor bh,bh
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mov ah,25
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int 47h
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mov ah,21
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mov cl,116
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int 47h
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mov si,offset menu
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mov ah,13
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int 47h
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mov ah,21
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mov cl,7
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int 47h
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mov ax,0B800h
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mov es,ax
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mov xxyy2,3
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mov xxyy,3
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call calc1
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call calc2
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waitst:
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mov ax,0
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int 16h
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cmp ah,41h
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jne tre
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mov dword ptr [pope],'WEIV'
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push cs
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pop ds
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mov cx,sect
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mov si,offset buffer
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mov ah,1
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int 48h
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jnc adres
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jmp errtr
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tre:
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cmp al,0
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jne write
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cmp ah,48h
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jne tre1
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cmp yy,0
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je waitst
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dec yy
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jmp cursor
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tre1:
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cmp ah,50h
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jne tre2
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mov al,infos
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dec al
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xor ah,ah
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cmp yy,ax
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je waitst
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inc yy
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jmp cursor
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tre2:
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cmp ah,4Dh
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jne tre4
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cmp xx,15
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je waitst
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inc xx
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jmp cursor
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tre4:
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cmp ah,4Bh
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jne waitst
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cmp xx,0
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je waitst
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dec xx
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jmp cursor
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write:
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call AsciiHex2dec
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cmp cl,15
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ja waitst
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call calc1
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call calc2
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mov byte ptr es:[bx],0112
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mov es:[bx-1],al
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writs:
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mov ax,0
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int 16H
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mov ch,cl
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call AsciiHex2dec
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cmp cl,15
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ja writs
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shl ch,4
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add ch,cl
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mov es:[bx+1],al
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mov es:[si-1],ch
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mov ax,bx
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call calc3
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mov [bx],ch
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inc xx
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cmp xx,16
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jne pasde
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inc yy
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mov xx,0h
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pasde:
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call calc1
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call calc2
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jmp waitst
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cursor:
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call calc1
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call calc2
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jmp waitst
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suit7:
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cmp ax,4200h
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jne adres2
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mov ah,29h
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int 47H
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db 0CBH
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ret
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calc1:
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push ax dx si
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mov ax,xx
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mov dx,xx
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shl ax,2
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shl dx,1
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add ax,dx
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add ax,27
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mov bx,YY
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mov dx,yy
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shl bx,5
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shl dx,7
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add bx,dx
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add bx,ax
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mov byte ptr es:[bx],112
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mov byte ptr es:[bx+2],112
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mov si,xxyy
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mov byte ptr es:[si],07
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mov byte ptr es:[si+2],07
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mov xxyy,bx
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pop si dx ax
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ret
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calc2:
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push ax bx dx
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mov si,YY
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mov dx,yy
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shl si,5
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shl dx,7
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add si,dx
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add si,2
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mov dx,xx
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shl dx,1
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add si,dx
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add si,127
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mov byte ptr es:[si],112
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mov bx,xxyy2
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mov byte ptr es:[bx],07
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mov xxyy2,si
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pop dx bx ax
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ret
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calc3:
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push dx
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xor bx,bx
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mov bx,xx
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mov dx,yy
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shl dx,4
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add bx,dx
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add bx,bp
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add bx,offset buffer
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pop dx
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ret
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asciihex2dec:
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cmp al,'a'
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jb nomin
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cmp al,'f'
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ja nomin
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sub al,'a'-'A'
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jmp ismaj
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nomin:
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cmp al,'A'
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jb nomaj
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cmp al,'F'
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ja nomaj
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ismaj:
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mov cl,al
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sub cl,'A'-10
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jmp endt
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nomaj:
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mov cl,al
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sub cl,'0'
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endt:
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ret
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dep db ':',0
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sect dw 0
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xx dw 0
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yy dw 0
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xxyy dw 3
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xxyy2 dw 3
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errordisk db 'Une erreur est apparue sur le lecteur, appuyez sur une touche ',0
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menu db 'Haut&Bas [F1/2] Secteur [F3/4] Charger/Sauver [F5/6] Mode [F7] Quit. [F8] '
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pope db 'VIEW',0
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spaces db ' <20> ',0
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showbuffer db 35 dup (0FFh)
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oldmode db 0
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infos db 40 dup (0)
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buffer db 2048 dup (0)
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end start
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