this is my first post, and my first little program/demo for the oric.
In fact, a few weeks ago I didn't know there is something like an oric...
but I know a bit about the C64, so many things are quite familiar.
So here it is:

Well, there's not so much to see on that still image... but maybe you try it nevertheless:
spritedemo.tap
Features:
- Textmode
- Background is black/white, can use 32 chars
- 4 softscrolling sprites, 18 x 16 pixel, black/white/transparent (using 48 chars, less when overlapping)
- drawing alternating in both charsets to reduce flicker
- Sprites have an z-order and can overlapp
missing yet:
- no collision detection
- sprites can not leave (partially) the screen
- not 100% assembler, and could be optimized in speed and memory-usage
- still some flickering, obviously because I know nothing about interrupts and vsync-detection on the oric...
- technically, sprites could be 1 pixel larger in each direction (19 x 17)
If you switch the background on, you can see how the screen-update-mechanism works.
That is intended of course, could also update the whole screen at once.
Hope you like it.
And thanks to Twilighte for all the help!