[A83] Re: decompiling a romshot

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[A83] Re: decompiling a romshot


>  You did disable labels and data finding correct?

Uhm no

>Otherwise, with a the rom image, it is going to look
>very, very funky, you'll probably get mostly .db's.
>There is no easy way to determine whether sometime is
>meant to be code, or if its meant to be data.  And if
>you used labels, you will run into problems since the
>rom is paged.
>  It probably took so long because of the labels and
>datafinding....  Lets see, a disassembled 83p rom,
>without labels and data finding on... 7.5 meg source
>file, with a 12.5 meg List file, done in 5.5 minutes.

That's fast!

>The reason I say that it has limited rom disassembly
>capabilities, is just that it will do a disassembly of
>anything with a .rom extension (no other checking
>whatsoever), you just have to tell it where to start.
>If the address gets above FFFF, I just start it again
>at 4000.
>
>Hope you find what you are looking for in the rom,
>thats a hell of a lot of code to wade through.

I'm looking for the text. So I need data finding, I guess. It's busy now, at
7%, 1:30 mins, without label-finding. Another question: how did you edit the
file?!?! (19%, 2:45 )

>Jimmy Conner

--
Ronald

>
>
>
>--- Ronald Teune <rtwolf@gmx.net> wrote:
>>
>> Thanks, Tijl en Peter.
>> It actually worked. Decompiling the VTI romdump
>> (including Flash Memory like
>> groups, programs). It took exactly41 minutes and 36
>> seconds. Now I have
>> another problem. How do I edit the 9.57-MB-file?!?!
>> :o~
>> Actually, I just want to edit the OS, not the other
>> mem. Does someone still
>> have an original 1.10 BaseCode from TI?
>>
>> >> From: "Ronald Teune" <rtwolf@gmx.net>
>> >>
>> >> Uhm... what *is* a romshot actually?
>> >
>> >Just a 'picture' of the rom, so a rom dump actually
>> >
>> >Tijl Coosemans
>> >
>>
>>------------------------------------------------------------
>> >Want a free mail at http://www.mail.be ?
>> >
>> >
>> >It's like a screenshot, but this time, it's not an
>> image of the bytes on
>> >the screen, but an image of the bytes in the entire
>> rom. It's also called
>> >rom-image, rom-dump or ROM for short. It is used in
>> the emulators like
>> emu8x
>> >and !VTI!.
>> >
>> >It contains all of the the programming TI put in
>> the calculator so it'd
>> >probably be illegal to disassemble (it is when you
>> downloaded a new OS from
>> >TI's website, read the disclaimer. I can't remember
>> if they put such a
>> >disclaimer on the software wich comes with the calc
>> initially, so... :-)
>> >
>> >--Peter Martijn
>> >
>> >>
>> >
>> >>
>> >>
>> >> Uhm... what *is* a romshot actually?
>> >>
>> >> Ronald
>> >>
>> >> >i believe that is why jimmy conner made
>> "dissassembler"  it has only
>> >> partial
>> >> >rom support, and i have never tried it though,
>> but it would be worth a
>> shot
>> >> >
>> >> >-cole south
>> >> >
>> >> >
>> >>
>> >>
>> >>
>> >
>> >
>> >
>>
>>
>>
>>
>
>
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