040000 tree 829cb4e1eb7d67fccbe53da1a0c4ac2b6f6d39ed	arch
100644 blob b654be77853055e416038d10b3da9bf6873e021a	mmio.c
040000 tree b7f8fefc5261c863915969649d7386b2451afe8b	semihosting
040000 tree 038455b9dced6ac3842ec47a6308f09ed89bd1d1	stdlib
040000 tree 4bea7b8cb2076cb45b0ae159f2b2f55c26816536	sync