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Subject: Re: MPeye HTS-150

Re: MPeye HTS-150

From: Daniel Stenberg <daniel_at_rockbox.org>
Date: 2005-12-14

On Wed, 14 Dec 2005, Tim Schmidt wrote:

> The latest firmware is available from MPeye at:
> http://mpeye.co.kr/file3/05_HTS_100.zip

That is truely revealing. I played a little with it and I would say that it is
likely that the addresses spaces in use are at 0x10000000 and 0x30c0000.
Possibly one of them are the flash and the other the ram.

(using 'm68k-elf-objdump -mm68k -D -b binary HTS_100.frg' of course to
dissassemble it)

The most used subroutines (by grepping for 'jsr'):

     199 0x30c45424
     172 0x100002cc
      82 0x30c71370
      81 0x30c557ac
      63 0x10000340
      61 0x30c4fa10
      61 0x30c4f7bc
      60 0x30c70efc

Perhaps the start of the .frg file can be what should be at address 0x10000000
since at index 340 (the fifth most commonly called jsr) there seems to be a
tiny function that moves data from d0 to the stack and then it calls
0x30c4f7bc. It looks like some kind of function dispatcher that could be
actual code.

I'm not sure this is actually usable for anything, but here it is! ;-)

-- 
  Daniel Stenberg -- http://www.rockbox.org/ -- http://daniel.haxx.se/
Received on Wed Dec 14 13:19:05 2005

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