How to do copy & paste:
1. Select the above text using mouse, click before the text and drag it
down until everything is selected.
2. Press Ctrl + C combination to copy.
3. Go to MicroAsm text editor and press Ctrl + V combination to paste.
As you may guess, ";" is used for comments, anything after ";" symbol
is ignored by compiler.
You should see something like that when program finishes:
(this is how it looks in emu8086 microprosessor emulator).
Actually the above program writes directly to video memory, so you
may see that MOV is a very powerful instruction.