#sprites · 7 posts

Multiplexing, interleaving, stretching and otherwise abusing the VIC-II's eight hardware sprites.

12 October 2026 Effects intermediate

Sprite Interleave

A gap-free carpet of sprites on the C64: no interleave against 16px and 20px interleave, badline timing, and fast sprite pointer updates.

24 October 2023 Game Dev intermediate

Sabre Wulf Remastered part two: reading the C64 keyboard and joystick, 16-bit player movement, and driving Sabre Man's animations.

Series: Remastering Sabre Wulf

03 December 2022 Effects insane

The Memento Mori end part: a bitmap scrolling through the C64 side borders at 25fps while streaming from disk with Sparkle and SPOT.

Series: Memento Mori

13 April 2022 Effects intermediate

How the big animating Genesis Project sprite logo in Memento Mori works on the C64: a 20px interleaved sprite carpet and delta-blitted frames.

Series: Memento Mori

30 March 2022 Effects hard

How the huge swinging Memento Mori logo works on the C64: a packed charset logo over an x-expanded sprite layer, with interleaved IRQ code.

Series: Memento Mori

20 March 2022 Effects hard

DXYCP scrollers on the C64: pre-shifted fonts, generated LDA/ORA/STA plot code, and plotting to bitmap, charset or multiplexed sprites.

15 March 2022 Effects insane

How the all-border double DYPP in Memento Mori works on the C64: open borders, multiplexed sprites and prebaked, deduped font data.

Series: Memento Mori