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           dec [pg_data.pg_mutex]
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           dec [pg_data.pg_mutex]
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           ret
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           ret
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endp
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endp
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; param
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;  eax= linear address
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;
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; retval
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;  eax= phisical page address
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align 4
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align 4
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proc get_pg_addr stdcall, lin_addr:dword
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get_pg_addr:
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           mov ebx, [lin_addr]
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           shr ebx, 12
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           shr eax, 12
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           mov eax, [pages_tab+ebx*4]
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           mov eax, [pages_tab+eax*4]
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           and eax, 0xFFFFF000
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           and eax, 0xFFFFF000
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           ret
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           ret
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endp
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align 4
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align 4
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proc page_fault_handler
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proc page_fault_handler