Notes on key concepts for the quarter. Unfortunately contain both omissions and repetitions. Anything discussed will usually be needed for a lab:

• Makefiles: makefiles

• Observability and compiler optimization: observability

• Devices: how to reason about devices; gpio, miniUART.

• Registers: caller/callee

• How to use the compiler to figure out assembly code

• Interrupts: armv6 interrupt cheatsheet armv6 mode bug examples

• armv6 debug hardware cheatsheet