acamus

Lately I have had a need for comparison of maps.
I have been searching and could not find anything except one python script.
I have just decided to create it.

My question is if this would be valuable for anyone of you as I have it now in only early alpha stage,
which suits my needs but if there would be a interest in it I could spend some more time to fine polish rough edges.

Edit:
Tool attached to: https://www.evolutionm.net/forums/9881499-post18.html


SH2

m32

dparrish

Nice work, I think that would be very helpful!

I was considering writing a tool to build "patch" files for ROMs, and apply them in whatever order I like. On any given ROM, I may change 20 tables, but while I'm testing I'd like to have some of them at factory defaults, and some modified. I'd like to keep a "stack" of patches for a given ROM (under change control), e.g. "96260709 Speed Limit.patch" and "96260709 8k Rev Limit.patch", so I could choose which patches to apply when I flash the ROM.

Thoughts?

ziad

iTrader: (1)

i just use hexcmp to compare 2 files... but this would be quite easy way for the tuners to keep an eye on whats changed in rom. do u colour the cells if they are different.

for patching david i just inject hex code (for dma patching). now i just have a program that i give address and size of code and it brings out a byte array for me to paste into my program. the program (ELM) just injects the byte array with the location addresses. i have toyed with the idea of having a dump file with locations (like a makeshift database) but worried people might mess with it and cause issues with the injected code.

Raptord

iTrader: (10)

I use EcuFlash 1.43 which has a function to compare 2 roms and highlight differences, however I would also give this a try if it was available

dparrish

I was thinking more of keeping a stack of patches to maps rather than the code.

I'm an old-school sysadmin, and the idea of changing more than one thing at a time really gets to me, it makes it difficult to tell which changed caused which problem (or fix). Currently I have a pile of roms in a git repository, and every time I change a single map, I Ctrl-S in ecuflash and commit the change to the repository. This lets me back out a change easily but it's not easy to revert a change in the middle of a set.

This is why I was thinking of the patch tool, I could Ctrl-S then run the tool against the saved rom and it would output a text file that contains just the changes I just saved. I could then stash that file elsewhere and if I wanted to revert just that change later on I could reverse the patch and apply it to the rom, or if I wanted to apply just that change to another rom (with the same version) I can, without having to fire up ecuflash and copy+paste the changes.

ziad

iTrader: (1)

ahh u mean when tuning..... thats different.... i use a manual approach. just increment the file name (quite easy to do with ELM again)

my stuff is more about patching code onto a file... soon will do some more error checking, currently it doesnt do that.

ziad

iTrader: (1)

acamus my question. how do u get the tables? do u read ecuflash xml files?

anyone found a way to read them which makes sense?

also if it could highlight the changes by a different colour would make this program very interesting.

lastly something again that i personally like (not sure about others) is empty cells instead of 0. what i mean if difference is zero then dont display a 0. in the difference/percentage cells. this clears up the output to just view it quickly.

chrisw

iTrader: (2)

I used winOLS when I used to tune BMW's while working at Dynan engineering.

http://www.evc.de/en/download/down_winols.asp

dparrish

Funny you ask that, I *just now* started writing some code to read and parse the xml files, I decided to write this patch tool. I'll be writing it in C++, I don't know if that's any good to you.

ziad

iTrader: (1)

nope.... C++ is for geeks.... i stopped being a geek once i left uni. i dont even see the need to go C# when VB does the exact same thing.

but i could steal from ur code, if u let me

dparrish

Well call me a geek then

Well if you can *read* C++ then you're welcome to steal the code once I get it going.

acamus

Yes, and scale them with scaling.

tephra

iTrader: (6)

nice..

you know that the new beta of ECUFlash has a compare roms function

I emailed Colby yesterday actually to add a "percent different" map view...

so great minds think alike

acamus

Yes, but no difference nor percentage.
Now you tell me?
To tell the truth I was kind of hoping Colby gets interested and does it within EcuFlash, but I also know he is really busy so I rather did it myself

92LaserRs

iTrader: (3)

Cool tool! I cant get 1.43 to stop crashing to try out its compare function.