A Simple Technique for Overlapping IRQ Handlers
Overlapping IRQ handlers is a a neat trick that allow us to write long-running subroutines without worrying that they will interfere with our other raster interrupts.
Trident’s C64 Demo Details
All the Details from the Commore 64 Demos by Trident / Fairlight
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Anonymous IRQ Handlers
Anonymous IRQ (Interrupt Request Handlers) is a technique for making Commodore 64 demo programming easier by making interrupt handlers sequential: your code will be neatly kept in one place and its structure makes it easy to understand exactly what it is doing.
Multicolor Ghostbyte Shine-through: How to Make an Unexpanded C64 Border Scroll
The Commodore 64 intro Orbit Untold by Fairlight from 2023 (youtube link) features a border scroll that looks unexpanded, despite being placed in the lower border and despite covering the entire visible screen area. This document explains how this effect is achieved with a technique we call multicolor ghostbyte shine-through.