109 lines
2.1 KiB
NASM
109 lines
2.1 KiB
NASM
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; for tasm
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;
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cseg segment
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assume cs:cseg, ds:cseg
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org 100H
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begin:
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mov es,cs:[video]
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mov ax,3
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int 10h
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mov cs:[col],0fh
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mov di,18
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lea si,colr2
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call mess
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mov cx,16
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mov di,160
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xor al,al
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rec1:
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push cx
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push di
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lea si,colour
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call mess
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call hex2
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mov bh,al
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push cx
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mov cx,16
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col2:
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mov es:[di],byte ptr "#"
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mov es:[di+1],bh
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inc bh
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add di,2
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loop col2
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pop cx
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pop di
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add di,160
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add al,10h
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add cs:[col],10h
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pop cx
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loop rec1
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mov ah,2
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mov bh,0
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mov dh,17
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mov dl,0
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int 10h
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mov ah,4ch
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int 21h
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col db 0
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colour db "Colour ",0
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colr2 db "0123456789ABCDEF",0
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colnum db 0
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video dw 0b800h
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hex2 proc near
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push ax
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and al,011110000b
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shr al,4
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call hex1
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pop ax
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push ax
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and al,01111b
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call hex1
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pop ax
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ret
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hex2 endp
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hex1 proc near
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mov ah,cs:[col]
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cmp al,10
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jb hnum1
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add al,'A'-10
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jmp hnum2
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hnum1:
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add al,'0'
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hnum2:
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mov es:[di],ax
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add di,2
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ret
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hex1 endp
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mess proc
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push ax
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mov ah,cs:[col]
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conmess:
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mov al,cs:[si]
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or al,al
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jz endmess
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mov es:[di],ax
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inc si
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add di,2
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jmp conmess
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endmess:
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pop ax
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ret
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mess endp
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cseg ends
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end begin
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