| 1 | !BAT
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| 2 | # DISK can be 0-9, A-F only
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| 3 | # Returns: CAP = Capacity of disk displayed in GB
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| 4 | set DISK=1
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| 5 | # Get disk capacity
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| 6 | write 0x60000 0x42
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| 7 | write 0x60010 0 > nul
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| 8 | # get size of disk from INT 13h AH=48 into memory at DS:DI+10h - edx=80h is hard disk 0, 81h would be hard disk 1
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| 9 | /%grub%/bios int=0x13 eax=0x4800 edx=0x8%DISK% ds=0x6000 edi=0x0 > nul
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| 10 | read 0x60010 > nul
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| 11 | set /A A=%@retval% & 0xffffffff > nul
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| 12 | set /a CAP=%A%>>21&0xffffffff > nul
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| 13 | # Get most significant dword
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| 14 | read 0x60014 > nul
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| 15 | set /A B=%@retval% & 0x1ffff > nul
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| 16 | set /a CAP=%B% * 0x800 + %CAP% > nul
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| 17 | echo DISK %DISK% = %CAP%GiB (LS_DWORD=%A% MS_DWORD=%B%, TOTAL SECTORS=%B%%%A:~2,999%)
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| 18 | set /A LAST=%A%-1
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| 19 | cat --hex --length=0x100 (hd%DISK%)%LAST%+1
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| 20 | exit
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| 21 |
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| 22 |
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