Here is bitdiff.py (originally named bincmp.py), a tool for doing byte/bit comparison of two files, with the focus on radio images/savefiles.
I have added an option that will parse .DAT files (i.e., the ones that baofeng/baojie, et al oem software output), as well as a facility to log to csv file, hopefully making it easier to iterate through oem software changes while mapping out memories.
I'm envisioning even making this a process where a non-developer can help with the task of mapping some of this stuff out, as it's usually just a tedious process with out much in-depth technical work, e.g., make a change and save the file (or download the image); rinse and repeat N-dozen times...
Dan, don't have a bug number - do you want me to create one for this since it's a developer tool?
hackpro:build jens$ chirp.hg/tools/bitdiff.py -h usage: bitdiff.py [-h] [-o OFFSET] [-d] [-w] [-c CSV] [-s SETTING] [-v VALUE] file1 file2
byte-/bit- comparison of two files
positional arguments: file1 first (reference) file to parse file2 second file to parse
optional arguments: -h, --help show this help message and exit -o OFFSET, --offset OFFSET offset (hex) to start comparison -d, --dat process input files from .DAT format (from 'jujumao' oem programming software for chinese radios) -w, --watch 'watch' changes. runs in a loop -c CSV, --csv CSV file to append csv results. format: filename1, filename2, byte_offset, byte1, bits1, byte2, bits2, item_msg, value_msg -s SETTING, --setting SETTING user-meaningful field indicating setting/item modified, e.g. 'beep' or 'txtone' -v VALUE, --value VALUE user-meaningful field indicating values changed, e.g. 'true->false' or '110.9->100.0' hackpro:build jens$ hackpro:build jens$ chirp.hg/tools/bitdiff.py --dat --csv foo.csv --setting "squelch" --value "6->7" 1.dat 2.dat 1: 1.dat 2: 2.dat setting: squelch value: 6->7 @0F0Ah 1:06h, 00000110b 2:07h, 00000111b bytes read: 7936 hackpro:build jens$ hackpro:build jens$ cat foo.csv filename1, filename2, byte_offset, byte1, bits1, byte2, bits2, item_msg, value_msg 1.dat, 2.dat, 0F0A, 06, 00000110, 07, 00000111, squelch, 6->7