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;; Copyright (C) KolibriOS team 2011-2015. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2011-2015. All rights reserved. ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;; Distributed under terms of the GNU General Public License    ;;
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;;                                                              ;;
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;;                                                              ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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$Revision: 7270 $
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$Revision: 7546 $
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; =============================================================================
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; =============================================================================
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; ================================= Constants =================================
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; ================================= Constants =================================
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1011 
; ecx = pointer to partition records array (MBR + 446)
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; ecx = pointer to partition records array (MBR + 446)
1012 
is_protective_mbr:
 1012 
is_protective_mbr:
1013 
        push    ecx edi
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        push    ecx edi
1014 
        xor     eax, eax
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1015 
;        cmp     [ecx-6], eax
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1016 
;        jnz     .exit
 1014 
        xor     eax, eax
1017 
        cmp     [ecx-2], ax
 1015 
        cmp     [ecx-2], ax
1018 
        jnz     .exit
 1016 
        jnz     .exit
1019 
; Partition record 0 has specific fields
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; Partition record 0 has specific fields
1020 
        cmp     [ecx+0], al
 1018 
        cmp     [ecx+0], al
1021 
        jnz     .exit
 1019 
        jnz     .exit
1022 
        cmp     byte[ecx+4], 0xEE
 1020 
        cmp     byte[ecx+4], 0xEE
1023 
        jnz     .exit
 1021 
        jnz     .exit
1024 
        cmp     dword[ecx+8], 1
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        cmp     dword[ecx+8], 1
1025 
        jnz     .exit
 1023 
        jnz     .exit
1026 
        cmp     dword[esi+DISK.MediaInfo.Capacity+4], eax
 1024 
        mov     edi, -1
1027 
        mov     edi, 0xFFFFFFFF
 1025 
        cmp     [ecx+12], edi
1028 
        jnz     @f
 1026 
        jz      @f
1029 
        mov     edi, dword[esi+DISK.MediaInfo.Capacity+0]
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1030 
        dec     edi
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1031 
@@:
 1027 
        add     edi, dword[esi+DISK.MediaInfo.Capacity+0]
1032 
        cmp     dword[ecx+12], edi
 1028 
        cmp     [ecx+12], edi
1033 
        jnz     .exit
 1029 
        jnz     .exit
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@@:
1035 
; Check that partition records 1-3 are filled with zero
 1031 
; Check that partition records 1-3 are filled with zero
1036 
        lea     edi, [ecx+16]
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        lea     edi, [ecx+16]
1037 
        mov     ecx, 16*3/2     ; 3 partitions
 1033 
        mov     ecx, 16*3/2     ; 3 partitions
1038 
        repz scasw
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        repz scasw