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;; Copyright (C) KolibriOS team 2011-2021. All rights reserved. ;;
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;; Copyright (C) KolibriOS team 2011-2021. 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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$Revision: 9930 $
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$Revision: 9941 $
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; =============================================================================
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; =============================================================================
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; ================================= Constants =================================
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; ================================= Constants =================================
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; Soon we will access the partition table which starts at ebx+0x1BE,
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; Soon we will access the partition table which starts at ebx+0x1BE,
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; so we can fill its address right now. If we do it now, then the addressing
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; so we can fill its address right now. If we do it now, then the addressing
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; [ecx+0x40] is shorter than [ebx+0x1fe]: one-byte offset vs 4-bytes offset.
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; [ecx+0x40] is shorter than [ebx+0x1fe]: one-byte offset vs 4-bytes offset.
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        lea     ecx, [ebx+0x1be]        ; ecx -> partition table
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        lea     ecx, [ebx+0x1be]        ; ecx -> partition table
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        cmp     word [ecx+0x40], 0xaa55
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        cmp     word [ecx+0x40], 0xaa55
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        jnz     .mbr_failed
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        jnz     .notmbr
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; 8. The MBR is treated differently from EBRs. For MBR we additionally need to
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; 8. The MBR is treated differently from EBRs. For MBR we additionally need to
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; execute step 10 and possibly step 11.
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; execute step 10 and possibly step 11.
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        test    ebp, ebp
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        test    ebp, ebp
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        jnz     .mbr
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        jnz     .mbr
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; 9. Handle GUID Partition Table
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; 9. Handle GUID Partition Table