8.1.2 An Example

The pseudocode of an UART receiver interrupt is simplified as follows (not to handle error flags):

$\begin{algorithmic} \STATE grab the byte \IF{fifo has space} \STATE add the b... ... nothing, maybe to set a flag to indicate the problem \ENDIF \end{algorithmic}$

The matching handler thread may look like the following:

$\begin{algorithmic} \LOOP \STATE P the receiver fifo semphoare \STATE grab a ... ...rom the fifo \STATE process it (can be leeeengthy) \ENDLOOP \end{algorithmic}$