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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@JumJum
Tested this command on actual Esp8266 firmware.
Going down to assembler listing it breaks using an 8 bit instruction in iterator.
There could be a problem in reading bytes from Flash, reading works fine for aligned 32bits only (afaik).