Cortex Basic
When RESETÂ and baud rate set to 19200, 7 bit even parity and 2 stop bits via terminal program you should get the following after pressing "2" :
Note that Stuarts version of Cortex does not support MON (Monitor) within Cortex Basic.
If you do not have any hardware ..you can still have a go at Cortax BASIC through this emulator.
For lots of info about Cortex BASIC look at this website.