The commented source code is included within the Basic files. This was my first attempt at writing ARM code (coming from 68000/Atari ST scene) so it's nothing amazing. It uses some other external code for module playback and custom screen modes, also included.
There's also a BBC Basic program I originally wrote on the BBC Micro in the mid 80's, a combat simulator for the old board game "Star Fleet Battles", that handles all the movement and combat stuff that would normally be done from the rule book charts + dice rolls etc.
So the 3 executable files are:
PARALLAX : Parallax 4 way scroller demo
SOFTSCROLL : Scroller + sprites demo (while running the background direction can be changed with number keys on numeric keypad + sprites pattern can be changed with function keys)
STARFLEET : Star Fleet Battles combat simulator, in BBC Basic. From BBC Micro (Mode 7) but runs fine on the A3000
I've only tested with Arculator v099 and sometimes the "Softscroll" screen crashes after a while, not sure if that's an emulation issue, the sound module playback or just my buggy old code.
Anyways, hope someone finds it useful.