Let's Code MS DOS 0x0F: VGA Copper Bars

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Germany root42
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The Amiga and its Agnus chip could do some amazing raster effects. One subprocessor of the Agnus was called Copper. It allowed for interesting, fluid animation of horizontal and vertical bars, so called copper bars. The C64 and many other machines supported similar effects through trickery. The PC with it's VGA card has a similar capability. Today I want to show you how to program the classic Copper or Raster Bar effect.

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Link to the source code: https://gist.github.com/root42/5e18d72d860a4754b3aee1ad94df7b83
VGA Programming: http://www.osdever.net/FreeVGA/vga/vga.htm
DOSBox machine config: https://www.dosbox.com/wiki/Dosbox.conf#.5Bdosbox.5D

Long Stroll von Kevin MacLeod ist unter der Lizenz "Creative Commons Attribution" (https://creativecommons.org/licenses/by/4.0/) lizenziert.
Quelle: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100174
Künstler: http://incompetech.com/



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