Its Devpac2 code (Can't stand Devpac3 - it's what happens when you sell the code to someone else and ignore the original authors... Paint Shop Pro anyone? That turned into an over complicated useless mess of random buttons)

I can change it so it displays diagonals as well if thats usefull (It'll display UP RIGHT, etc) by moving the display address of the text over on the screen.

If I get chance I'll add mouse tracking in there as well.  Seems you can't use the ALINE reading trick without using the original ACIA interupt.

Oh, and some of the things in the BSS section aren't needed, I just grabbed an old intro along with a chunk of a Defender game I started years ago and hacked them around.

Glad you like it :)