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Annotation of truecrypt/boot/windows/bootdefs.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  Copyright (c) 2008 TrueCrypt Foundation. All rights reserved.
                      3: 
                      4:  Governed by the TrueCrypt License 2.4 the full text of which is contained
                      5:  in the file License.txt included in TrueCrypt binary and source code
                      6:  distribution packages.
                      7: */
                      8: 
                      9: // Total memory required (CODE + DATA + BSS + STACK) in KBytes - determined from linker map.
                     10: #define TC__BOOT_MEMORY_REQUIRED       60
                     11: 
                     12: // Windows Vista boot loader uses memory up to 8000:FFFF, disregarding the BIOS memory map and the amount
                     13: // of available memory at 0:0413. Therefore, the code has to be loaded at or above 9000:0000.
                     14: 
                     15: // Modifying this value can introduce incompatibility with previous versions
                     16: #define TC__BOOT_LOADER_SEGMENT                TC_HEX (9000)
                     17: #define TC__BOOT_LOADER_OFFSET         TC_HEX (100) // COM executable offset
                     18: 
                     19: #define TC__BOOT_LOADER_LOWMEM_SEGMENT TC_HEX (2000)
                     20: #define TC__BOOT_LOADER_BUFFER_SEGMENT TC_HEX (5000)
                     21: 
                     22: #define TC__BOOT_LOADER_AREA_SECTOR_COUNT 63
                     23: 
                     24: #define TC__BOOT_SECTOR_CONFIG_OFFSET 439 // Last byte reserved for boot loader
                     25: 
                     26: #ifdef TC_ASM_PREPROCESS
                     27: 
                     28: #define TC_HEX(N) 0##N##h
                     29: 
                     30: TC_BOOT_MEMORY_REQUIRED = TC__BOOT_MEMORY_REQUIRED
                     31: TC_BOOT_LOADER_SEGMENT = TC__BOOT_LOADER_SEGMENT
                     32: TC_BOOT_LOADER_OFFSET = TC__BOOT_LOADER_OFFSET
                     33: TC_BOOT_LOADER_LOWMEM_SEGMENT = TC__BOOT_LOADER_LOWMEM_SEGMENT
                     34: TC_BOOT_LOADER_AREA_SECTOR_COUNT = TC__BOOT_LOADER_AREA_SECTOR_COUNT
                     35: TC_BOOT_SECTOR_CONFIG_OFFSET = TC__BOOT_SECTOR_CONFIG_OFFSET
                     36: 
                     37: #else
                     38: 
                     39: #define TC_HEX(N) 0x##N
                     40: 
                     41: #define TC_BOOT_MEMORY_REQUIRED TC__BOOT_MEMORY_REQUIRED
                     42: #define TC_BOOT_LOADER_SEGMENT TC__BOOT_LOADER_SEGMENT
                     43: #define TC_BOOT_LOADER_OFFSET TC__BOOT_LOADER_OFFSET
                     44: #define TC_BOOT_LOADER_LOWMEM_SEGMENT TC__BOOT_LOADER_LOWMEM_SEGMENT
                     45: #define TC_BOOT_LOADER_BUFFER_SEGMENT TC__BOOT_LOADER_BUFFER_SEGMENT
                     46: #define TC_BOOT_LOADER_AREA_SECTOR_COUNT TC__BOOT_LOADER_AREA_SECTOR_COUNT
                     47: #define TC_BOOT_SECTOR_CONFIG_OFFSET TC__BOOT_SECTOR_CONFIG_OFFSET
                     48: 
                     49: #endif

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