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Rev 5116 Rev 5121
Line 831... Line 831...
831 
        shr     edx, 12
 831 
        shr     edx, 12
832 
        and     edx, 0x3FF
 832 
        and     edx, 0x3FF
833 
.map:
 833 
.map:
834 
        stdcall safe_map_page, [slot], [req_access], [ofs]
 834 
        stdcall safe_map_page, [slot], [req_access], [ofs]
835 
        jnc     .exit
 835 
        jnc     .exit
836 
        add     dword [ebp-4], PAGE_SIZE
 836 
        add     [count], PAGE_SIZE
837 
        add     [ofs], PAGE_SIZE
 837 
        add     [ofs], PAGE_SIZE
838 
        dec     ecx
 838 
        dec     ecx
839 
        jz      .exit
 839 
        jz      .exit
Line 840... Line 840...
840 
 
 840 
 
Line 850... Line 850...
850 
        jz      .exit
 850 
        jz      .exit
Line 851... Line 851...
851 
 
 851 
 
852 
        stdcall map_page, esi, eax, PG_SW
 852 
        stdcall map_page, esi, eax, PG_SW
853 
        xor     edx, edx
 853 
        xor     edx, edx
854 
        jmp     .map
 - 
 
855 
 
 854 
        jmp     .map
856 
.exit:
 855 
.exit:
857 
        pop     eax
 856 
        mov     eax, [count]
858 
        ret
 857 
        ret
Line 859... Line 858...
859 
endp
 858 
endp
860 
 
 859 
 
- 
 
 860 
proc map_memEx stdcall, lin_addr:dword,slot:dword,\
861 
proc map_memEx stdcall, lin_addr:dword,slot:dword,\
 861 
                        ofs:dword,buf_size:dword,req_access:dword
- 
 
 862 
        locals
- 
 
 863 
             count   dd ?
Line -... Line 864...
- 
 
 864 
             process dd ?
862 
                        ofs:dword,buf_size:dword,req_access:dword
 865 
        endl
863 
        push    0 ; initialize number of mapped bytes
 866 
 
Line 864... Line 867...
864 
 
 867 
        mov     [count], 0
865 
        cmp     [buf_size], 0
 868 
        cmp     [buf_size], 0
866 
        jz      .exit
 869 
        jz      .exit
867 
 
 870 
 
868 
        mov     eax, [slot]
 871 
        mov     eax, [slot]
Line 869... Line 872...
869 
        shl     eax, 8
 872 
        shl     eax, 8
870 
        mov     eax, [SLOT_BASE+eax+APPDATA.process]
 873 
        mov     eax, [SLOT_BASE+eax+APPDATA.process]
871 
        mov     eax, [eax+PROC.pdt_0_phys]
 874 
        test    eax, eax
872 
        and     eax, 0xFFFFF000
 875 
        jz      .exit
873 
 
 876 
 
874 
        stdcall map_page, [proc_mem_pdir], eax, PG_UW
 - 
 
875 
        mov     ebx, [ofs]
 877 
        mov     [process], eax
876 
        shr     ebx, 22
 - 
 
877 
        mov     esi, [proc_mem_pdir]
 878 
        mov     ebx, [ofs]
878 
        mov     edi, [proc_mem_tab]
 879 
        shr     ebx, 22
879 
        mov     eax, [esi+ebx*4]
 - 
 
880 
        and     eax, 0xFFFFF000
 880 
        mov     eax, [eax+PROC.pdt_0+ebx*4]                 ;get page table
881 
        test    eax, eax
 881 
        mov     esi, [proc_mem_tab]
882 
        jz      .exit
 882 
        and     eax, 0xFFFFF000
883 
        stdcall map_page, edi, eax, PG_UW
 883 
        jz      .exit
884 
 
 884 
        stdcall map_page, esi, eax, PG_SW
885 
@@:
 885 
@@:
886 
        mov     edi, [lin_addr]
 886 
        mov     edi, [lin_addr]
Line 887... Line 887...
887 
        and     edi, 0xFFFFF000
 887 
        and     edi, 0xFFFFF000
888 
        mov     ecx, [buf_size]
 888 
        mov     ecx, [buf_size]
889 
        add     ecx, 4095
 889 
        add     ecx, 4095
890 
        shr     ecx, 12
 - 
 
891 
        inc     ecx
 - 
 
892 
 
 890 
        shr     ecx, 12
893 
        mov     edx, [ofs]
 891 
        inc     ecx                  ; ???????????
894 
        shr     edx, 12
 892 
 
895 
        and     edx, 0x3FF
 - 
 
896 
        mov     esi, [proc_mem_tab]
 893 
        mov     edx, [ofs]
897 
 
 894 
        shr     edx, 12
898 
.map:
 - 
 
899 
        stdcall safe_map_page, [slot], [req_access], [ofs]
 895 
        and     edx, 0x3FF
- 
 
 896 
.map:
- 
 
 897 
        stdcall safe_map_page, [slot], [req_access], [ofs]
- 
 
 898 
        jnc     .exit
- 
 
 899 
        add     [count], PAGE_SIZE
- 
 
 900 
        add     [ofs], PAGE_SIZE
900 
        jnc     .exit
 901 
        dec     ecx
- 
 
 902 
        jz      .exit
- 
 
 903 
 
- 
 
 904 
        add     edi, PAGE_SIZE
- 
 
 905 
        inc     edx
- 
 
 906 
        cmp     edx, 1024
- 
 
 907 
        jnz     .map
- 
 
 908 
 
- 
 
 909 
        inc     ebx
- 
 
 910 
        mov     eax, [process]
- 
 
 911 
        mov     eax, [eax+PROC.pdt_0+ebx*4]
901 
        add     dword [ebp-4], 0x1000
 912 
        and     eax, 0xFFFFF000
902 
        add     edi, 0x1000
 913 
        jz      .exit
903 
        add     [ofs], 0x1000
 914 
 
904 
        inc     edx
 915 
        stdcall map_page, esi, eax, PG_SW
Line 905... Line 916...
905 
        dec     ecx
 916 
        xor     edx, edx
906 
        jnz     .map
 917 
        jmp     .map