Fix cio_printb() on MSP430 and OS X Installation#4

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chrissphinx wants to merge 2 commits intowendlers:masterfrom

wmucs2230:master

Commits on Nov 11, 2015

fix cio_printb() on MSP430 due to `rra` instruction
chrissphinx
committed

Commits on Jan 28, 2023

Allow using `%d` for signed integer (#2)
chrissphinx
authored