Eagles Dare (C64) Released

It’s “busy season” again, so there’s yet another entry into the CSDb Intro Creation Competition to mutter about! This time it’s called Eagles Dare, has got code and graphics by yours truly – the picture is mostly wired, but I did some work to make that happen and added details – and aNdy handed in another great tune. The memory footprint is $0400 to just before $43ff so this is a 16K intro.

The unusual feature of this one has to be the scrolling message, it uses Extended Background Colour Mode which limits font use to the first 64 characters (the upper two bits of the character code are used to select one of four background colours) but, rather than a fixed character set, the scroller has a 39 character buffer which is scrolled along the line, recycling whichever character falls off the end for the next. This means that any character from the C64’s upper or lower case ROM font can be selected, although the embedded commands for that and those used to select background and foreground colours take quite a bit of space and there’s not much room for actual text in this one!

Here Goes (C64) released

So here we go with Here Goes, my first entry into the Intro Creation Competition for 2019 and, as promised yesterday, it’s for the 4K category; despite the limited memory footprint it’s still got 200 scanlines worth of raster colours, the logo and scrolling message required for all entries and a piece of music from Sack; the latter is a SID cover of the Amiga module Freeman which comes in at under 950 bytes long when Goattracker has finished weaving it’s magic!

The memory footprint for this one is a close to the wire $0400 to $13ff and a smattering of zero page use, with the screen data being decompressed directly to $0400 before the code starts up to save having to keep a second copy somewhere else beforehand. The source code can be grabbed from GitHub for anybody who might enjoy prodding around my slightly spaghetti-like code…