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Rev 755 Rev 784
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;;                                                              ;;
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;;                                                              ;;
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;;  See file COPYING for details                                ;;
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;;  See file COPYING for details                                ;;
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;;                                                              ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 755 $
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$Revision: 784 $
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; Now eax=x, ebx=y, edi->output, ebp=offset in WinMapAddress
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; Now eax=x, ebx=y, edi->output, ebp=offset in WinMapAddress
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; 2) Calculate offset in background memory block
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; 2) Calculate offset in background memory block
799 
        push    eax
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        push    eax
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        xor     edx, edx
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        xor     edx, edx
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        mov     eax, ebx
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        mov     eax, ebx
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        mov     ecx, [BgrDataHeight]
 - 
 
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        div     ecx             ; edx := y mod BgrDataHeight
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        div     dword [BgrDataHeight]   ; edx := y mod BgrDataHeight
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        sub     ecx, edx        ; ecx := BgrDataHeight - (y mod BgrDataHeight)
 - 
 
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        pop     eax
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        pop     eax
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        push    eax
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        push    eax
- 
 
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        mov     ecx, [BgrDataWidth]
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        mov     esi, edx
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        mov     esi, edx
808 
        imul    esi, [BgrDataWidth]             ; esi := (y mod BgrDataHeight) * BgrDataWidth
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        imul    esi, ecx                ; esi := (y mod BgrDataHeight) * BgrDataWidth
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        xor     edx, edx
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        xor     edx, edx
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        div     dword [BgrDataWidth]            ; edx := x mod BgrDataWidth
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        div     ecx             ; edx := x mod BgrDataWidth
- 
 
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        sub     ecx, edx
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        add     esi, edx        ; esi := (y mod BgrDataHeight)*BgrDataWidth + (x mod BgrDataWidth)
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        add     esi, edx        ; esi := (y mod BgrDataHeight)*BgrDataWidth + (x mod BgrDataWidth)
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        pop     eax
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        pop     eax
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        lea     esi, [esi*3]
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        lea     esi, [esi*3]
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        add     esi, [img_background]
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        add     esi, [img_background]
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        xor     edx, edx
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        xor     edx, edx