Last week, we implemented a bunch of missing instructions and completed the family of LDR/STR instructions, as well as LSLS and ADD (register). 

chegewaras, who watched the stream, suggested that we also decode the 4-byte instructions DMB, MSR, and MRS to avoid a situation where the second pair of bytes is interpreted as a different instruction that might affect the execution of the code. So we did.

Finally, we tried running hello_usart, and ran into panic(). We started looking into it, and you can watch the complete debugging session in the live stream recording: 

The next episode will be streamed today, you can watch it here. See you then!