272 lines
No EOL
3.3 KiB
NASM
272 lines
No EOL
3.3 KiB
NASM
code SEGMENT para public 'CODE'
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ASSUME cs:code
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.386
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LOCALS
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PUBLIC _vram
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_vram dw 0,0a000h
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PUBLIC _sin1024
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include sin1024.inc
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PUBLIC _setborder
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_setborder PROC FAR
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push bp
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mov bp,sp
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mov dx,3dah
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in al,dx
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mov dx,3c0h
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mov al,11h+32
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out dx,al
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mov al,[bp+6]
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out dx,al
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pop bp
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ret
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_setborder ENDP
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PUBLIC _inittwk
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_inittwk PROC FAR
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push bp
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mov bp,sp
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push si
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push di
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push ds
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;clear palette
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mov dx,3c8h
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xor al,al
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out dx,al
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inc dx
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mov cx,768
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@@1: out dx,al
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loop @@1
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mov dx,3d4h
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;400 rows
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;mov ax,00009h
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;out dx,ax
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;tweak
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mov ax,00014h
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out dx,ax
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mov ax,0e317h
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out dx,ax
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mov dx,3c4h
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mov ax,0604h
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out dx,ax
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;
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mov dx,3c4h
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mov ax,0f02h
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out dx,ax
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mov ax,0a000h
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mov es,ax
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xor di,di
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mov cx,32768
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xor ax,ax
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rep stosw
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;
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pop ds
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pop di
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pop si
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pop bp
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ret
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_inittwk ENDP
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PUBLIC _setpalarea
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_setpalarea PROC FAR
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push bp
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mov bp,sp
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push si
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push di
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push ds
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lds si,[bp+6]
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mov ax,[bp+10]
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mov dx,3c8h
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out dx,al
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mov cx,[bp+12]
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mov ax,cx
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shl cx,1
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add cx,ax
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inc dx
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rep outsb
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sti
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pop ds
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pop di
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pop si
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pop bp
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ret
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_setpalarea ENDP
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PUBLIC _leftline
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_leftline PROC FAR
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push bp
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mov bp,sp
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push si
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push di
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push ds
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mov ax,80
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mul word ptr [bp+6]
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mov di,ax
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mov ds,cs:_vram[2]
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mov cx,160
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mov ax,[bp+8]
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or ax,ax
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jz @@1
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sub cx,ax
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mov bx,cx
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shr bx,2
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add di,bx
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and cl,3
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mov ax,0ff02h
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shl ah,cl
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mov dx,3c4h
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out dx,ax
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mov ah,[bp+10]
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mov ds:[di],ah
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inc di
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inc dx
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mov al,0fh
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out dx,al
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mov al,ah
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test di,1
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jz @@2
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mov ds:[di],ah
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inc di
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inc bx
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@@2: mov cx,39
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sub bx,cx
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add bx,bx
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and bx,not 3
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;bx=-4*(number of words)
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add bx,OFFSET @@fill
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jmp bx
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zzz=80
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REPT 40
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zzz=zzz-2
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db 89h,85h,zzz,0 ;mov ds:[di+zzz],ax
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ENDM
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@@fill:
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@@1: pop ds
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pop di
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pop si
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pop bp
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ret
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_leftline ENDP
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PUBLIC _rightline
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_rightline PROC FAR
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push bp
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mov bp,sp
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push si
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push di
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push ds
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mov ax,80
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mul word ptr [bp+6]
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mov di,ax
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mov ds,cs:_vram[2]
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mov cx,160
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mov ax,[bp+8]
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or ax,ax
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jz @@1
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add cx,ax
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mov bx,cx
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shr bx,2
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add di,bx
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and cl,3
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mov ax,0f002h
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rol ah,cl
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mov dx,3c4h
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out dx,ax
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mov ah,[bp+10]
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mov ds:[di],ah
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dec di
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inc dx
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mov al,0fh
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out dx,al
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mov al,ah
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mov cx,bx
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test di,1
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jnz @@2
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mov ds:[di],ah
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dec cx
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@@2: sub cx,40
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neg cx
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add cx,cx
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and cx,not 3
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;bx=-4*(number of words)
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add cx,OFFSET @@fill
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sub di,bx
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add di,41
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jmp cx
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zzz=80
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REPT 40
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zzz=zzz-2
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db 89h,85h,zzz,0 ;mov ds:[di+zzz],ax
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ENDM
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@@fill:
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@@1: pop ds
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pop di
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pop si
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pop bp
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ret
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_rightline ENDP
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testcopper PROC FAR
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mov dx,3c8h
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xor al,al
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out dx,al
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inc dx
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mov al,63
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out dx,al
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out dx,al
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out dx,al
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mov cx,100
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@@1: loop @@1
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mov dx,3c8h
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xor al,al
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out dx,al
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inc dx
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mov al,0
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out dx,al
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out dx,al
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out dx,al
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ret
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testcopper ENDP
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PUBLIC _initcoppers
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_initcoppers PROC FAR
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push bp
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mov bp,sp
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push si
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push di
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push ds
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mov bx,7
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mov ax,0
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mov cx,OFFSET testcopper
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mov dx,cs
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int 0fch
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mov bx,7
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mov ax,1
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mov cx,OFFSET testcopper
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mov dx,cs
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int 0fch
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mov bx,7
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mov ax,2
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mov cx,OFFSET testcopper
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mov dx,cs
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; int 0fch
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pop ds
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pop di
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pop si
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pop bp
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ret
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_initcoppers ENDP
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code ENDS
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END |