[MPlayer-dev-eng] silly code

[Arpi]

Hi,

i'm still on quicktime.qts...
it still does sig11 with win32 loader here:

0x629a1d80:     mov    0x4(%esp,1),%ecx    ;; ecx = AABBCCDD == 0x0806b738
0x629a1d84:     xor    %edx,%edx           ;; edx = 00000000
0x629a1d86:     mov    %ecx,%eax           ;; eax = AABBCCDD
0x629a1d88:     mov    %cl,%dh             ;; edx = 0000DD00
0x629a1d8a:     shr    $0x8,%eax           ;; eax = 00AABBCC
0x629a1d8d:     mov    %al,%dl             ;; edx = 0000DDCC
0x629a1d8f:     and    $0xff00,%eax        ;; eax = 0000BB00
0x629a1d94:     and    $0xff0000,%ecx      ;; ecx = 00BB0000
0x629a1d9a:     or     %ecx,%eax           ;; eax = 00BBBB00
0x629a1d9c:     shr    $0x8,%eax           ;; eax = 0000BBBB
0x629a1d9f:     xor    %edx,%eax           ;; eax = 0000(BBBB^DDCC)

0x629a1da1:     xor    %edx,%edx
0x629a1da3:     div    0x62b6fa94,%eax     ;; 0x00001837
0x629a1da9:     mov    0x62b7d640,%eax     ;; 0x00000000  < problem?
0x629a1dae:     mov    (%eax,%edx,4),%eax
^^^^^^^^^^ sig11 here.

0x629a1db1:     test   %eax,%eax
0x629a1db3:     jne    0x629a1dcf

after ;; there are my comments. i tried to find out what the hell this code
do, but i don't really understand. it seems to be nonsense to me.
it get a memory address in stack (maybe it's wrong here), then it starts
swapping bytes in weird way, finally divide by 0x00001837 and use the modulo
as index in dword data table, with (another error?) zero base address.


A'rpi / Astral & ESP-team

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