040000 tree 92dcc11690e0a5cd093f379d4713133a54393594	arm-none-eabi-m0
040000 tree 9d98ccf9d8194aa85819761cb3e211b620d32b6a	arm-none-eabi-m4
040000 tree 2cc0451d32f13fd7f5ca763e630e639677772b21	sim