Watching Logo Demo (Plus/4)

Logo Demo from 1990 prominently features, as the name suggests, a large logo which was actually won in competition by a previous release of the programmer! Plus/4 scene stalwarts Muffbusters ran a 20 blocks democompo a little earlier in that year where the prize on offer for the winner was a bespoke logo drawn by group member Jeva and it was developer CSM who took the top spot with his release 20 Blocks. Two of the other three entries appear to have been lost to the mists of time, but third place was taken by a demo also called 20 Blocks which was a rough around the edges port of Moz(IC)art’s Luminous from the C64.

Along with that large, golden logo taking pride of place at the top of the screen and an area below it occupied by some blue colour splits – that routine is important, so we’ll cover it in more detail soon – there’s also a long scrolling message and the visuals are accompanied by a fairly short but still jolly piece of converted music which burbles away to itself in the background. The original SID version of the tune is credited to the Maniacs Of Noise in the scroller, but isn’t a piece I recognise even after spending a fruitless but nonetheless entertaining hour trawling through the relevant folders of the High Voltage SID Collection.

The entry for Logo Demo at Plus/4 World reliably informs us that the colour splitting routine CSM created was actually a significant piece of demoscene history for the machine, being the first time that abybody had managed to vertically split the border colour register so that there’s a different set of colours on each side of the screen. There’s also some neat multicolour character use to handle the transition of colours on the screen itself, which allows the split to swing smoothly back and forth… although I can’t help thinking that the colour tables themselves could have taken greater advantage of the platform’s 121 colour palette. That niggle aside though, this is a fun release which features a decent tune, some tidy graphics and a groundbreaking effect on the Plus/4.