PM3 Commands Reference (Iceman Firmware):

Main Help

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Current command:
data diff --help

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Diff takes a multitude of input data and makes a binary compare.
It accepts filenames (filesystem or RDV4 flashmem SPIFFS), emulator memory, magic gen1

usage:
    data diff [-h] [-a <fn>] [-b <fn>] [--eb] [--fa <fn>] [--fb <fn>] [-w <4|8|16>]

options:
    -h, --help                     This help
    -a <fn>                        input file name A
    -b <fn>                        input file name B
    --eb                           emulator memory 
    --fa <fn>                      input spiffs file A
    --fb <fn>                      input spiffs file B
    -w <4|8|16>                    Width of data output

examples/notes:
    data diff -w 4 -a hf-mfu-01020304.bin -b hf-mfu-04030201.bin
    data diff -a fileA -b fileB
    data diff -a fileA --eb
    data diff --fa fileA -b fileB
    data diff --fa fileA --fb fileB