Using online emulator

This is in many ways similar to working with console version, though you need not download anything.

Just open emulator's page at separate window and start playing.

There is a large area for your program and two small ones - for input and output. Of course there is also a button to run your code.

Important thing on using input is that if you supply 16 hexadecimal digits here, like

0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0

Then they are treated as initial values for registers, rather than data to be fed to your program from console. In this case output also consists of final values of these registers.

If this behavior is unwanted, you need to erase input box (and optionally provide your own text data here).