https://www.bennee.com/~alex/2011-04-05T10:16:00+01:00the wanderings of a supposed digital native2011-04-05T10:16:00+01:002011-04-05T10:16:00+01:00alextag:www.bennee.com,2011-04-05:/~alex/blog/2011/04/05/nostalgia-2/

<p>In the middle of ripping box-sets to our media server I had a little bout of nostalgia for the 'ole days. After a little messing about I got the latest version of <a class="reference external" href="http://hatari.berlios.de/">Hatari</a> running which still seems to be making releases. It does a very creditable job in handling Atari …</p>

<p>In the middle of ripping box-sets to our media server I had a little bout of nostalgia for the 'ole days. After a little messing about I got the latest version of <a class="reference external" href="http://hatari.berlios.de/">Hatari</a> running which still seems to be making releases. It does a very creditable job in handling Atari ST emulation including some of the demo effects which abused the shifter hardware. After a couple of false starts I finally got this up on YouTube:</p> <iframe width="560" height="315" src="https://www.youtube.com/embed/S5RRroytTPc" frameborder="0" allow="accelerometer; autoplay;encrypted-media; gyroscope; picture-in-picture" allowfullscreen> </iframe><p>It may not seem like much but you have to remember how much less powerful hardware was back then. It took an appreciable amount of a frame (at 50FPS that's 20ms) to just clear the screen. One thing I do remember is it made use of the 68k's <em>movep</em> instruction to do the 8 pixel wide morphing of the main logo. This made it fairly efficient despite the ST's <a class="reference external" href="http://en.wikipedia.org/wiki/Planar_(computer_graphics)">16 pixel wide, 4 bit-planes</a>.</p>