[Diy_efi] finding maps

[Brent Prindle]

Found the code in the EEPROM, not the CPU!

What is a favourite assembler/disassembler?

Sorry for all the questions, been about 20 years since I hacked at this
level...

-oo
Brent Prindle
BrentP at motobits.com
(Pls note new address)



----- Original Message -----
From: "joe graham" <velocity150 at hotmail.com>
To: <diy_efi at diy-efi.org>
Sent: Thursday, June 13, 2002 5:47 AM
Subject: Re: [Diy_efi] finding maps


> >Given an EPROM, what is the best method of finding the various maps
hidden
> >therein?<
>
> Do a disassembly and then shove that into excel.  Sort by pneumonic and
pick
> all ldx ldaa ldab and ldy values.  Sort these by called value (#$xxxx,
> Lxxxx, etc...)  Convert the xxxx to decimal and subtract to find number of
> bytes between callouts.  Pick the largest ones and find them in the
> disassembly.  Look at the routine called for interpolating.  The largest
> tables should give you the 3-d routine and the 3-d routine will give you
the
> location of all 3-d tables.  Repeat for 2-d interpolation. Use abx to find
> indexed tables.  Most tables should be near each other.
>
> HTH
>
> JG
>
>
> _________________________________________________________________
> Join the world's largest e-mail service with MSN Hotmail.
> http://www.hotmail.com
>
>
> _______________________________________________
> Diy_efi mailing list
> Diy_efi at diy-efi.org
> http://www.diy-efi.org/mailman/listinfo/diy_efi
>


_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi