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  dmasize         db 0x0
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  dmasize         db 0x0
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  dmamode         db 0x0
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  dmamode         db 0x0
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endg
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endg
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fdc_init:                               ;start with clean tracks.
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fdc_init:                               ;start with clean tracks.
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        mov edi,0xD201
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        mov edi,OS_BASE+0xD201
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        mov al,0
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        mov al,0
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        mov ecx,160
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        mov ecx,160
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        rep stosb
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        rep stosb
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        mov eax,ebx
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        mov eax,ebx
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        add eax,31
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        add eax,31
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        mov bl,18
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        mov bl,18
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        div bl
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        div bl
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        mov ah,0
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        mov ah,0
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        add eax,0xD201
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        add eax,OS_BASE+0xD201
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        mov [eax],byte 1                ;This track is now dirty.
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        mov [eax],byte 1                ;This track is now dirty.
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        popa
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        popa
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ret
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ret
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