Summary of Differences:
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Analysis of Ultra-TDeck-v9.2.elf and MeshOS-TDeck-1.1.8.elf yielded 0 identified functions for both binaries.
Reason: Radare2 lacks the 'xtensa' disassembly plugin on this environment ('Cannot find asm.parser for xtensa'), so it cannot heuristically identify function prologues without symbols.
As a result, no differences could be identified.