I've been busy trying to map the complete Evo IX ROM (88580013). See this topic: http://forums.openecu.org/viewtopic.php?t=949
I am of the understanding that a 3D map header (in Mitsu Evo 9 ROM) is of the format:
03 00 ff ff ww xx ff ff ww zz LL
and that a 2D map header is like:
02 00 FF FF ww xx
Regarding the 3D header, I've been told that "wwxx and wwzz are RAM addresses where there is info about the maps" and that "LL is the length in bytes of each load column".
Could somebody please throw some more light on this? FYI I don't have IDA Pro. I'm working directly with the hex from a ROM dump.
1. Are these statements correct? If not, could somebody please make a correct statement about 3D, 2D, 1D headers? I'm really stumped with how to locate 1D data.
2. It seems that LL is the number of columns along the X axis, but how/where can I find the number of rows along the Y axis?
3. Example:
- Code: Select all
<!--
Data : TODO
X-Axis : TODO
Y-Axis : TODO
Header : 0300FFFF69B8FFFF69BA05
-->
<table name="_P4" category="Unknown" address="31AB" type="3D" level="1" swapxy="true" scaling="uint8">
<table name="X" address="6E9A" type="X Axis" elements="21" scaling="uint8"/>
<table name="Y" address="6EE0" type="Y Axis" elements="5" scaling="uint8"/>
</table>
In the above XML definition, all I know at the moment is the address of the data (31AB) and the number of elements in the Y axis (5). Other than that, is there any easy way to locate the axis data and the X axis elements from the header?
5. Could somebody also please explain how to establish the labels/description for maps that are found?
As per the attachment (which was generated using a quick app I wrote), I have located about 60 possible 3D maps and something like 200 possible 2D maps. I know a lot of the map headers I found could be data that just look like headers. I'm hoping to be able to find a whole bunch of new maps for the Evo IX ROM.
Colby, the 88580013.xml attached to the other topic could maybe be included in the next release of EcuFlash if you deem it worthy?
Thanks,
Brendan